/*
* qemu_command.c: QEMU command generation
*
* Copyright (C) 2006-2016 Red Hat, Inc.
* Copyright (C) 2006 Daniel P. Berrange
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* .
*/
#include
#include "qemu_command.h"
#include "qemu_hostdev.h"
#include "qemu_capabilities.h"
#include "qemu_dbus.h"
#include "qemu_interface.h"
#include "qemu_alias.h"
#include "qemu_security.h"
#include "qemu_slirp.h"
#include "qemu_block.h"
#include "cpu/cpu.h"
#include "viralloc.h"
#include "virlog.h"
#include "virarch.h"
#include "virerror.h"
#include "virfile.h"
#include "virnetdev.h"
#include "virnetdevbridge.h"
#include "virqemu.h"
#include "virstring.h"
#include "virtime.h"
#include "viruuid.h"
#include "domain_nwfilter.h"
#include "domain_addr.h"
#include "domain_audit.h"
#include "domain_conf.h"
#include "netdev_bandwidth_conf.h"
#include "snapshot_conf.h"
#include "storage_conf.h"
#include "secret_conf.h"
#include "virnetdevtap.h"
#include "virnetdevopenvswitch.h"
#include "device_conf.h"
#include "storage_source_conf.h"
#include "virtpm.h"
#include "virscsi.h"
#include "virnuma.h"
#include "virgic.h"
#include "virmdev.h"
#include "virdomainsnapshotobjlist.h"
#if defined(__linux__)
# include
#endif
#include "logging/log_manager.h"
#include "logging/log_protocol.h"
#include "virutil.h"
#include "virsecureerase.h"
#include
#include
#define VIR_FROM_THIS VIR_FROM_QEMU
VIR_LOG_INIT("qemu.qemu_command");
VIR_ENUM_DECL(qemuDiskCacheV2);
VIR_ENUM_IMPL(qemuDiskCacheV2,
VIR_DOMAIN_DISK_CACHE_LAST,
"default",
"none",
"writethrough",
"writeback",
"directsync",
"unsafe",
);
VIR_ENUM_IMPL(qemuVideo,
VIR_DOMAIN_VIDEO_TYPE_LAST,
"", /* default value, we shouldn't see this */
"std",
"cirrus",
"vmware",
"", /* don't support xen */
"", /* don't support vbox */
"qxl",
"", /* don't support parallels */
"", /* no need for virtio */
"" /* don't support gop */,
"" /* 'none' doesn't make sense here */,
"bochs-display",
"", /* ramfb can't be used with -vga */
);
VIR_ENUM_DECL(qemuDeviceVideo);
VIR_ENUM_IMPL(qemuDeviceVideo,
VIR_DOMAIN_VIDEO_TYPE_LAST,
"", /* default value, we shouldn't see this */
"VGA",
"cirrus-vga",
"vmware-svga",
"", /* don't support xen */
"", /* don't support vbox */
"qxl-vga",
"", /* don't support parallels */
"virtio-vga",
"" /* don't support gop */,
"" /* 'none' doesn't make sense here */,
"bochs-display",
"ramfb",
);
VIR_ENUM_DECL(qemuDeviceVideoSecondary);
VIR_ENUM_IMPL(qemuDeviceVideoSecondary,
VIR_DOMAIN_VIDEO_TYPE_LAST,
"", /* default value, we shouldn't see this */
"", /* no secondary device for VGA */
"", /* no secondary device for cirrus-vga */
"", /* no secondary device for vmware-svga */
"", /* don't support xen */
"", /* don't support vbox */
"qxl",
"", /* don't support parallels */
"virtio-gpu",
"" /* don't support gop */,
"" /* 'none' doesn't make sense here */,
"" /* no secondary device for bochs */,
"" /* no secondary device for ramfb */,
);
VIR_ENUM_IMPL(qemuSoundCodec,
VIR_DOMAIN_SOUND_CODEC_TYPE_LAST,
"hda-duplex",
"hda-micro",
"hda-output",
);
VIR_ENUM_DECL(qemuControllerModelUSB);
VIR_ENUM_IMPL(qemuControllerModelUSB,
VIR_DOMAIN_CONTROLLER_MODEL_USB_LAST,
"piix3-usb-uhci",
"piix4-usb-uhci",
"usb-ehci",
"ich9-usb-ehci1",
"ich9-usb-uhci1",
"ich9-usb-uhci2",
"ich9-usb-uhci3",
"vt82c686b-usb-uhci",
"pci-ohci",
"nec-usb-xhci",
"qusb1",
"qusb2",
"qemu-xhci",
"none",
);
VIR_ENUM_DECL(qemuNumaPolicy);
VIR_ENUM_IMPL(qemuNumaPolicy,
VIR_DOMAIN_NUMATUNE_MEM_LAST,
"bind",
"preferred",
"interleave",
);
VIR_ENUM_DECL(qemuAudioDriver);
VIR_ENUM_IMPL(qemuAudioDriver,
VIR_DOMAIN_AUDIO_TYPE_LAST,
"none",
"alsa",
"coreaudio",
"jack",
"oss",
"pa",
"sdl",
"spice",
"wav",
);
static int
qemuBuildObjectCommandlineFromJSON(virBuffer *buf,
virJSONValue *props,
virQEMUCaps *qemuCaps)
{
const char *type = virJSONValueObjectGetString(props, "qom-type");
const char *alias = virJSONValueObjectGetString(props, "id");
if (!type || !alias) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing 'type'(%s) or 'alias'(%s) field of QOM 'object'"),
NULLSTR(type), NULLSTR(alias));
return -1;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_QAPIFIED)) {
return virJSONValueToBuffer(props, buf, false);
} else {
virBufferAsprintf(buf, "%s,", type);
return virQEMUBuildCommandLineJSON(props, buf, "qom-type",
virQEMUBuildCommandLineJSONArrayBitmap);
}
}
/**
* qemuBuildMasterKeyCommandLine:
* @cmd: the command to modify
* @qemuCaps qemu capabilities object
* @domainLibDir: location to find the master key
* Formats the command line for a master key if available
*
* Returns 0 on success, -1 w/ error message on failure
*/
static int
qemuBuildMasterKeyCommandLine(virCommandPtr cmd,
qemuDomainObjPrivatePtr priv)
{
g_autofree char *alias = NULL;
g_autofree char *path = NULL;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autoptr(virJSONValue) props = NULL;
/* If the -object secret does not exist, then just return. This just
* means the domain won't be able to use a secret master key and is
* not a failure.
*/
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_SECRET)) {
VIR_INFO("secret object is not supported by this QEMU binary");
return 0;
}
if (!(alias = qemuDomainGetMasterKeyAlias()))
return -1;
/* Get the path. NB, the mocked test will not have the created
* file so we cannot check for existence, which is no different
* than other command line options which do not check for the
* existence of socket files before using.
*/
if (!(path = qemuDomainGetMasterKeyFilePath(priv->libDir)))
return -1;
if (qemuMonitorCreateObjectProps(&props, "secret", alias,
"s:format", "raw",
"s:file", path,
NULL) < 0)
return -1;
if (qemuBuildObjectCommandlineFromJSON(&buf, props, priv->qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
/**
* qemuBuildFDSet:
* @fd: fd to reassign to the child
* @idx: index in the fd set
*
* Format the parameters for the -add-fd command line option
* for the given file descriptor. The file descriptor must previously
* have been 'transferred' in a virCommandPassFDIndex() call,
* and @idx is the value returned by that call.
*/
static char *
qemuBuildFDSet(int fd, size_t idx)
{
return g_strdup_printf("set=%zu,fd=%d", idx, fd);
}
/**
* qemuVirCommandGetFDSet:
* @cmd: the command to modify
* @fd: fd to reassign to the child
*
* Get the parameters for the QEMU -add-fd command line option
* for the given file descriptor. The file descriptor must previously
* have been 'transferred' in a virCommandPassFD() call.
* This function for example returns "set=10,fd=20".
*/
static char *
qemuVirCommandGetFDSet(virCommandPtr cmd, int fd)
{
int idx = virCommandPassFDGetFDIndex(cmd, fd);
if (idx < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("file descriptor %d has not been transferred"), fd);
return NULL;
}
return g_strdup_printf("set=%d,fd=%d", idx, fd);
}
/**
* qemuVirCommandGetDevSet:
* @cmd: the command to modify
* @fd: fd to reassign to the child
*
* Get the parameters for the QEMU path= parameter where a file
* descriptor is accessed via a file descriptor set, for example
* /dev/fdset/10. The file descriptor must previously have been
* 'transferred' in a virCommandPassFD() call.
*/
static char *
qemuVirCommandGetDevSet(virCommandPtr cmd, int fd)
{
int idx = virCommandPassFDGetFDIndex(cmd, fd);
if (idx < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("file descriptor %d has not been transferred"), fd);
return NULL;
}
return g_strdup_printf("/dev/fdset/%d", idx);
}
static int
qemuBuildDeviceAddressStr(virBufferPtr buf,
const virDomainDef *domainDef,
virDomainDeviceInfoPtr info,
virQEMUCapsPtr qemuCaps)
{
g_autofree char *devStr = NULL;
const char *contAlias = NULL;
bool contIsPHB = false;
int contTargetIndex = 0;
switch ((virDomainDeviceAddressType)info->type) {
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI: {
size_t i;
if (!(devStr = virPCIDeviceAddressAsString(&info->addr.pci)))
return -1;
for (i = 0; i < domainDef->ncontrollers; i++) {
virDomainControllerDefPtr cont = domainDef->controllers[i];
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
cont->idx == info->addr.pci.bus) {
contAlias = cont->info.alias;
contIsPHB = virDomainControllerIsPSeriesPHB(cont);
contTargetIndex = cont->opts.pciopts.targetIndex;
if (!contAlias) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Device alias was not set for PCI "
"controller with index %u required "
"for device at address %s"),
info->addr.pci.bus, devStr);
return -1;
}
if (virDomainDeviceAliasIsUserAlias(contAlias)) {
/* When domain has builtin pci-root controller we don't put it
* onto cmd line. Therefore we can't set its alias. In that
* case, use the default one. */
if (!qemuDomainIsPSeries(domainDef) &&
cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT) {
if (virQEMUCapsHasPCIMultiBus(qemuCaps, domainDef))
contAlias = "pci.0";
else
contAlias = "pci";
} else if (cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT) {
contAlias = "pcie.0";
}
}
break;
}
}
if (!contAlias) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Could not find PCI "
"controller with index %u required "
"for device at address %s"),
info->addr.pci.bus, devStr);
return -1;
}
if (contIsPHB && contTargetIndex > 0) {
/* The PCI bus created by a spapr-pci-host-bridge device with
* alias 'x' will be called 'x.0' rather than 'x'; however,
* this does not apply to the implicit PHB in a pSeries guest,
* which always has the hardcoded name 'pci.0' */
virBufferAsprintf(buf, ",bus=%s.0", contAlias);
} else {
/* For all other controllers, the bus name matches the alias
* of the corresponding controller */
virBufferAsprintf(buf, ",bus=%s", contAlias);
}
if (info->addr.pci.multi == VIR_TRISTATE_SWITCH_ON)
virBufferAddLit(buf, ",multifunction=on");
else if (info->addr.pci.multi == VIR_TRISTATE_SWITCH_OFF)
virBufferAddLit(buf, ",multifunction=off");
virBufferAsprintf(buf, ",addr=0x%x", info->addr.pci.slot);
if (info->addr.pci.function != 0)
virBufferAsprintf(buf, ".0x%x", info->addr.pci.function);
if (info->acpiIndex != 0)
virBufferAsprintf(buf, ",acpi-index=%u", info->acpiIndex);
}
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB:
if (!(contAlias = virDomainControllerAliasFind(domainDef,
VIR_DOMAIN_CONTROLLER_TYPE_USB,
info->addr.usb.bus)))
return -1;
virBufferAsprintf(buf, ",bus=%s.0", contAlias);
if (virDomainUSBAddressPortIsValid(info->addr.usb.port)) {
virBufferAddLit(buf, ",port=");
virDomainUSBAddressPortFormatBuf(buf, info->addr.usb.port);
}
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO:
if (info->addr.spaprvio.has_reg)
virBufferAsprintf(buf, ",reg=0x%08llx", info->addr.spaprvio.reg);
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW:
if (info->addr.ccw.assigned)
virBufferAsprintf(buf, ",devno=%x.%x.%04x",
info->addr.ccw.cssid,
info->addr.ccw.ssid,
info->addr.ccw.devno);
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_ISA:
virBufferAsprintf(buf, ",iobase=0x%x,irq=0x%x",
info->addr.isa.iobase,
info->addr.isa.irq);
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DIMM:
virBufferAsprintf(buf, ",slot=%d", info->addr.dimm.slot);
if (info->addr.dimm.base)
virBufferAsprintf(buf, ",addr=%llu", info->addr.dimm.base);
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_SERIAL:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCID:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_UNASSIGNED:
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_LAST:
virReportEnumRangeError(virDomainDeviceAddressType, info->type);
return -1;
}
return 0;
}
/**
* qemuBuildVirtioDevStr
* @buf: virBufferPtr to append the built string
* @baseName: qemu virtio device basename string. Ex: virtio-rng for
* @qemuCaps: virQEMUCapPtr
* @devtype: virDomainDeviceType of the device. Ex: VIR_DOMAIN_DEVICE_TYPE_RNG
* @devdata: *DefPtr of the device definition
*
* Build the qemu virtio -device name from the passed parameters. Currently
* this is mostly about attaching the correct string prefix to @baseName for
* the passed @type. So for @baseName "virtio-rng" and devdata->info.type
* VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI, generate "virtio-rng-pci"
*
* Returns: -1 on failure, 0 on success
*/
static int
qemuBuildVirtioDevStr(virBufferPtr buf,
const char *baseName,
virQEMUCapsPtr qemuCaps,
virDomainDeviceType devtype,
void *devdata)
{
const char *implName = NULL;
virDomainDeviceDef device = { .type = devtype };
virDomainDeviceInfoPtr info;
bool has_tmodel, has_ntmodel;
virDomainDeviceSetData(&device, devdata);
info = virDomainDeviceGetInfo(&device);
switch ((virDomainDeviceAddressType) info->type) {
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI:
implName = "pci";
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO:
implName = "device";
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW:
implName = "ccw";
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390:
implName = "s390";
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_SERIAL:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCID:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_ISA:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DIMM:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unexpected address type for '%s'"), baseName);
return -1;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_UNASSIGNED:
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_LAST:
default:
virReportEnumRangeError(virDomainDeviceAddressType, info->type);
return -1;
}
virBufferAsprintf(buf, "%s-%s", baseName, implName);
switch (devtype) {
case VIR_DOMAIN_DEVICE_DISK:
has_tmodel = device.data.disk->model == VIR_DOMAIN_DISK_MODEL_VIRTIO_TRANSITIONAL;
has_ntmodel = device.data.disk->model == VIR_DOMAIN_DISK_MODEL_VIRTIO_NON_TRANSITIONAL;
break;
case VIR_DOMAIN_DEVICE_NET:
has_tmodel = device.data.net->model == VIR_DOMAIN_NET_MODEL_VIRTIO_TRANSITIONAL;
has_ntmodel = device.data.net->model == VIR_DOMAIN_NET_MODEL_VIRTIO_NON_TRANSITIONAL;
break;
case VIR_DOMAIN_DEVICE_HOSTDEV:
if (device.data.hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI_HOST)
return 0;
has_tmodel = device.data.hostdev->source.subsys.u.scsi_host.model == VIR_DOMAIN_HOSTDEV_SUBSYS_SCSI_VHOST_MODEL_TYPE_VIRTIO_TRANSITIONAL;
has_ntmodel = device.data.hostdev->source.subsys.u.scsi_host.model == VIR_DOMAIN_HOSTDEV_SUBSYS_SCSI_VHOST_MODEL_TYPE_VIRTIO_NON_TRANSITIONAL;
break;
case VIR_DOMAIN_DEVICE_RNG:
has_tmodel = device.data.rng->model == VIR_DOMAIN_RNG_MODEL_VIRTIO_TRANSITIONAL;
has_ntmodel = device.data.rng->model == VIR_DOMAIN_RNG_MODEL_VIRTIO_NON_TRANSITIONAL;
break;
case VIR_DOMAIN_DEVICE_FS:
has_tmodel = device.data.fs->model == VIR_DOMAIN_FS_MODEL_VIRTIO_TRANSITIONAL;
has_ntmodel = device.data.fs->model == VIR_DOMAIN_FS_MODEL_VIRTIO_NON_TRANSITIONAL;
break;
case VIR_DOMAIN_DEVICE_MEMBALLOON:
has_tmodel = device.data.memballoon->model == VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO_TRANSITIONAL;
has_ntmodel = device.data.memballoon->model == VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO_NON_TRANSITIONAL;
break;
case VIR_DOMAIN_DEVICE_VSOCK:
has_tmodel = device.data.vsock->model == VIR_DOMAIN_VSOCK_MODEL_VIRTIO_TRANSITIONAL;
has_ntmodel = device.data.vsock->model == VIR_DOMAIN_VSOCK_MODEL_VIRTIO_NON_TRANSITIONAL;
break;
case VIR_DOMAIN_DEVICE_INPUT:
if (device.data.input->type != VIR_DOMAIN_INPUT_TYPE_PASSTHROUGH)
return 0;
has_tmodel = device.data.input->model == VIR_DOMAIN_INPUT_MODEL_VIRTIO_TRANSITIONAL;
has_ntmodel = device.data.input->model == VIR_DOMAIN_INPUT_MODEL_VIRTIO_NON_TRANSITIONAL;
break;
case VIR_DOMAIN_DEVICE_CONTROLLER:
if (device.data.controller->type == VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL) {
has_tmodel = device.data.controller->model == VIR_DOMAIN_CONTROLLER_MODEL_VIRTIO_SERIAL_VIRTIO_TRANSITIONAL;
has_ntmodel = device.data.controller->model == VIR_DOMAIN_CONTROLLER_MODEL_VIRTIO_SERIAL_VIRTIO_NON_TRANSITIONAL;
} else if (device.data.controller->type == VIR_DOMAIN_CONTROLLER_TYPE_SCSI) {
has_tmodel = device.data.controller->model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL;
has_ntmodel = device.data.controller->model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL;
} else {
return 0;
}
break;
case VIR_DOMAIN_DEVICE_LEASE:
case VIR_DOMAIN_DEVICE_SOUND:
case VIR_DOMAIN_DEVICE_VIDEO:
case VIR_DOMAIN_DEVICE_WATCHDOG:
case VIR_DOMAIN_DEVICE_GRAPHICS:
case VIR_DOMAIN_DEVICE_HUB:
case VIR_DOMAIN_DEVICE_REDIRDEV:
case VIR_DOMAIN_DEVICE_NONE:
case VIR_DOMAIN_DEVICE_SMARTCARD:
case VIR_DOMAIN_DEVICE_CHR:
case VIR_DOMAIN_DEVICE_NVRAM:
case VIR_DOMAIN_DEVICE_SHMEM:
case VIR_DOMAIN_DEVICE_TPM:
case VIR_DOMAIN_DEVICE_PANIC:
case VIR_DOMAIN_DEVICE_MEMORY:
case VIR_DOMAIN_DEVICE_IOMMU:
case VIR_DOMAIN_DEVICE_AUDIO:
case VIR_DOMAIN_DEVICE_LAST:
default:
return 0;
}
if (info->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI &&
(has_tmodel || has_ntmodel)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("virtio (non-)transitional models are not "
"supported for address type=%s"),
virDomainDeviceAddressTypeToString(info->type));
return -1;
}
if (has_tmodel) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL)) {
virBufferAddLit(buf, "-transitional");
} else if (virQEMUCapsGet(qemuCaps,
QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY)) {
virBufferAddLit(buf, ",disable-legacy=off,disable-modern=off");
}
/* No error if -transitional is not supported: our address
* allocation will force the device into plain PCI bus, which
* is functionally identical to standard 'virtio-XXX' behavior
*/
} else if (has_ntmodel) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL)) {
virBufferAddLit(buf, "-non-transitional");
} else if (virQEMUCapsGet(qemuCaps,
QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY)) {
/* Even if the QEMU binary doesn't support the non-transitional
* device, we can still make it work by manually disabling legacy
* VirtIO and enabling modern VirtIO */
virBufferAddLit(buf, ",disable-legacy=on,disable-modern=off");
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtio non-transitional model not supported "
"for this qemu"));
return -1;
}
}
return 0;
}
static void
qemuBuildVirtioOptionsStr(virBufferPtr buf,
virDomainVirtioOptionsPtr virtio)
{
if (!virtio)
return;
if (virtio->iommu != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(buf, ",iommu_platform=%s",
virTristateSwitchTypeToString(virtio->iommu));
}
if (virtio->ats != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(buf, ",ats=%s",
virTristateSwitchTypeToString(virtio->ats));
}
if (virtio->packed != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(buf, ",packed=%s",
virTristateSwitchTypeToString(virtio->packed));
}
}
static int
qemuBuildRomStr(virBufferPtr buf,
virDomainDeviceInfoPtr info)
{
if (info->romenabled || info->rombar || info->romfile) {
if (info->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("ROM tuning is only supported for PCI devices"));
return -1;
}
/* Passing an empty romfile= tells QEMU to disable ROM entirely for
* this device, and makes other settings irrelevant */
if (info->romenabled == VIR_TRISTATE_BOOL_NO) {
virBufferAddLit(buf, ",romfile=");
return 0;
}
switch (info->rombar) {
case VIR_TRISTATE_SWITCH_OFF:
virBufferAddLit(buf, ",rombar=0");
break;
case VIR_TRISTATE_SWITCH_ON:
virBufferAddLit(buf, ",rombar=1");
break;
default:
break;
}
if (info->romfile) {
virBufferAddLit(buf, ",romfile=");
virQEMUBuildBufferEscapeComma(buf, info->romfile);
}
}
return 0;
}
static int
qemuBuildIoEventFdStr(virBufferPtr buf,
virTristateSwitch use,
virQEMUCapsPtr qemuCaps)
{
if (use && virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_IOEVENTFD))
virBufferAsprintf(buf, ",ioeventfd=%s",
virTristateSwitchTypeToString(use));
return 0;
}
/**
* qemuBuildSecretInfoProps:
* @secinfo: pointer to the secret info object
* @props: json properties to return
*
* Build the JSON properties for the secret info type.
*
* Returns 0 on success with the filled in JSON property; otherwise,
* returns -1 on failure error message set.
*/
int
qemuBuildSecretInfoProps(qemuDomainSecretInfoPtr secinfo,
virJSONValuePtr *propsret)
{
g_autofree char *keyid = NULL;
if (!(keyid = qemuDomainGetMasterKeyAlias()))
return -1;
return qemuMonitorCreateObjectProps(propsret, "secret",
secinfo->s.aes.alias, "s:data",
secinfo->s.aes.ciphertext, "s:keyid",
keyid, "s:iv", secinfo->s.aes.iv,
"s:format", "base64", NULL);
}
/**
* qemuBuildObjectSecretCommandLine:
* @cmd: the command to modify
* @secinfo: pointer to the secret info object
* @qemuCaps: qemu capabilities
*
* If the secinfo is available and associated with an AES secret,
* then format the command line for the secret object. This object
* will be referenced by the device that needs/uses it, so it needs
* to be in place first.
*
* Returns 0 on success, -1 w/ error message on failure
*/
static int
qemuBuildObjectSecretCommandLine(virCommandPtr cmd,
qemuDomainSecretInfoPtr secinfo,
virQEMUCaps *qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autoptr(virJSONValue) props = NULL;
if (qemuBuildSecretInfoProps(secinfo, &props) < 0)
return -1;
if (qemuBuildObjectCommandlineFromJSON(&buf, props, qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
/* qemuBuildGeneralSecinfoURI:
* @uri: Pointer to the URI structure to add to
* @secinfo: Pointer to the secret info data (if present)
*
* If we have a secinfo, then build the command line options for
* the secret info for the "general" case (somewhat a misnomer since
* an iscsi disk is the only one with a secinfo).
*
* Returns 0 on success or if no secinfo,
* -1 and error message if fail to add secret information
*/
static int
qemuBuildGeneralSecinfoURI(virURIPtr uri,
qemuDomainSecretInfoPtr secinfo)
{
if (!secinfo)
return 0;
switch ((qemuDomainSecretInfoType) secinfo->type) {
case VIR_DOMAIN_SECRET_INFO_TYPE_PLAIN:
if (secinfo->s.plain.secret) {
if (!virStringBufferIsPrintable(secinfo->s.plain.secret,
secinfo->s.plain.secretlen)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("found non printable characters in secret"));
return -1;
}
uri->user = g_strdup_printf("%s:%s", secinfo->s.plain.username,
secinfo->s.plain.secret);
} else {
uri->user = g_strdup(secinfo->s.plain.username);
}
break;
case VIR_DOMAIN_SECRET_INFO_TYPE_AES:
case VIR_DOMAIN_SECRET_INFO_TYPE_LAST:
return -1;
}
return 0;
}
/* qemuBuildRBDSecinfoURI:
* @uri: Pointer to the URI structure to add to
* @secinfo: Pointer to the secret info data (if present)
*
* If we have a secinfo, then build the command line options for
* the secret info for the RBD network storage. Assumption for this
* is both username and secret exist for plaintext
*
* Returns 0 on success or if no secinfo,
* -1 and error message if fail to add secret information
*/
static int
qemuBuildRBDSecinfoURI(virBufferPtr buf,
qemuDomainSecretInfoPtr secinfo)
{
g_autofree char *base64secret = NULL;
if (!secinfo) {
virBufferAddLit(buf, ":auth_supported=none");
return 0;
}
switch ((qemuDomainSecretInfoType) secinfo->type) {
case VIR_DOMAIN_SECRET_INFO_TYPE_PLAIN:
base64secret = g_base64_encode(secinfo->s.plain.secret,
secinfo->s.plain.secretlen);
virBufferEscape(buf, '\\', ":", ":id=%s", secinfo->s.plain.username);
virBufferEscape(buf, '\\', ":",
":key=%s:auth_supported=cephx\\;none",
base64secret);
virSecureEraseString(base64secret);
break;
case VIR_DOMAIN_SECRET_INFO_TYPE_AES:
virBufferEscape(buf, '\\', ":", ":id=%s:auth_supported=cephx\\;none",
secinfo->s.aes.username);
break;
case VIR_DOMAIN_SECRET_INFO_TYPE_LAST:
return -1;
}
return 0;
}
/* qemuBuildTLSx509BackendProps:
* @tlspath: path to the TLS credentials
* @listen: boolean listen for client or server setting
* @verifypeer: boolean to enable peer verification (form of authorization)
* @alias: alias for the TLS credentials object
* @secalias: if one exists, the alias of the security object for passwordid
* @qemuCaps: capabilities
* @propsret: json properties to return
*
* Create a backend string for the tls-creds-x509 object.
*
* Returns 0 on success, -1 on failure with error set.
*/
int
qemuBuildTLSx509BackendProps(const char *tlspath,
bool isListen,
bool verifypeer,
const char *alias,
const char *secalias,
virQEMUCapsPtr qemuCaps,
virJSONValuePtr *propsret)
{
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_TLS_CREDS_X509)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("tls-creds-x509 not supported in this QEMU binary"));
return -1;
}
if (qemuMonitorCreateObjectProps(propsret, "tls-creds-x509", alias,
"s:dir", tlspath,
"s:endpoint", (isListen ? "server": "client"),
"b:verify-peer", (isListen ? verifypeer : true),
"S:passwordid", secalias,
NULL) < 0)
return -1;
return 0;
}
/* qemuBuildTLSx509CommandLine:
* @cmd: Pointer to command
* @tlspath: path to the TLS credentials
* @listen: boolean listen for client or server setting
* @verifypeer: boolean to enable peer verification (form of authorization)
* @certEncSecretAlias: alias of a 'secret' object for decrypting TLS private key
* (optional)
* @alias: TLS object alias
* @qemuCaps: capabilities
*
* Create the command line for a TLS object
*
* Returns 0 on success, -1 on failure with error set.
*/
static int
qemuBuildTLSx509CommandLine(virCommandPtr cmd,
const char *tlspath,
bool isListen,
bool verifypeer,
const char *certEncSecretAlias,
const char *alias,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autoptr(virJSONValue) props = NULL;
if (qemuBuildTLSx509BackendProps(tlspath, isListen, verifypeer, alias,
certEncSecretAlias, qemuCaps, &props) < 0)
return -1;
if (qemuBuildObjectCommandlineFromJSON(&buf, props, qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static char *
qemuBuildNetworkDriveURI(virStorageSourcePtr src,
qemuDomainSecretInfoPtr secinfo)
{
g_autoptr(virURI) uri = NULL;
if (!(uri = qemuBlockStorageSourceGetURI(src)))
return NULL;
if (src->hosts->socket)
uri->query = g_strdup_printf("socket=%s", src->hosts->socket);
if (qemuBuildGeneralSecinfoURI(uri, secinfo) < 0)
return NULL;
return virURIFormat(uri);
}
static char *
qemuBuildNetworkDriveStr(virStorageSourcePtr src,
qemuDomainSecretInfoPtr secinfo)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
size_t i;
char *ret = NULL;
switch ((virStorageNetProtocol) src->protocol) {
case VIR_STORAGE_NET_PROTOCOL_NBD:
if (src->nhosts != 1) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("protocol '%s' accepts only one host"),
virStorageNetProtocolTypeToString(src->protocol));
return NULL;
}
if (!((src->hosts->name && strchr(src->hosts->name, ':')) ||
(src->hosts->transport == VIR_STORAGE_NET_HOST_TRANS_TCP &&
!src->hosts->name) ||
(src->hosts->transport == VIR_STORAGE_NET_HOST_TRANS_UNIX &&
src->hosts->socket &&
src->hosts->socket[0] != '/'))) {
virBufferAddLit(&buf, "nbd:");
switch (src->hosts->transport) {
case VIR_STORAGE_NET_HOST_TRANS_TCP:
virBufferAsprintf(&buf, "%s:%u",
src->hosts->name, src->hosts->port);
break;
case VIR_STORAGE_NET_HOST_TRANS_UNIX:
if (!src->hosts->socket) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("socket attribute required for "
"unix transport"));
return NULL;
}
virBufferAsprintf(&buf, "unix:%s", src->hosts->socket);
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("nbd does not support transport '%s'"),
virStorageNetHostTransportTypeToString(src->hosts->transport));
return NULL;
}
if (src->path)
virBufferAsprintf(&buf, ":exportname=%s", src->path);
return virBufferContentAndReset(&buf);
}
/* NBD code uses URI formatting scheme as others in some cases */
ret = qemuBuildNetworkDriveURI(src, secinfo);
break;
case VIR_STORAGE_NET_PROTOCOL_HTTP:
case VIR_STORAGE_NET_PROTOCOL_HTTPS:
case VIR_STORAGE_NET_PROTOCOL_FTP:
case VIR_STORAGE_NET_PROTOCOL_FTPS:
case VIR_STORAGE_NET_PROTOCOL_TFTP:
case VIR_STORAGE_NET_PROTOCOL_ISCSI:
case VIR_STORAGE_NET_PROTOCOL_GLUSTER:
ret = qemuBuildNetworkDriveURI(src, secinfo);
break;
case VIR_STORAGE_NET_PROTOCOL_SHEEPDOG:
if (!src->path) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing disk source for 'sheepdog' protocol"));
return NULL;
}
if (src->nhosts == 0) {
ret = g_strdup_printf("sheepdog:%s", src->path);
} else if (src->nhosts == 1) {
ret = g_strdup_printf("sheepdog:%s:%u:%s", src->hosts->name,
src->hosts->port, src->path);
} else {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("protocol 'sheepdog' accepts up to one host"));
return NULL;
}
break;
case VIR_STORAGE_NET_PROTOCOL_RBD:
if (strchr(src->path, ':')) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("':' not allowed in RBD source volume name '%s'"),
src->path);
return NULL;
}
virBufferStrcat(&buf, "rbd:", src->volume, "/", src->path, NULL);
if (src->snapshot)
virBufferEscape(&buf, '\\', ":", "@%s", src->snapshot);
if (qemuBuildRBDSecinfoURI(&buf, secinfo) < 0)
return NULL;
if (src->nhosts > 0) {
virBufferAddLit(&buf, ":mon_host=");
for (i = 0; i < src->nhosts; i++) {
if (i)
virBufferAddLit(&buf, "\\;");
/* assume host containing : is ipv6 */
if (strchr(src->hosts[i].name, ':'))
virBufferEscape(&buf, '\\', ":", "[%s]",
src->hosts[i].name);
else
virBufferAsprintf(&buf, "%s", src->hosts[i].name);
if (src->hosts[i].port)
virBufferAsprintf(&buf, "\\:%u", src->hosts[i].port);
}
}
if (src->configFile)
virBufferEscape(&buf, '\\', ":", ":conf=%s", src->configFile);
ret = virBufferContentAndReset(&buf);
break;
case VIR_STORAGE_NET_PROTOCOL_VXHS:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("VxHS protocol does not support URI syntax"));
return NULL;
case VIR_STORAGE_NET_PROTOCOL_SSH:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("'ssh' protocol is not yet supported"));
return NULL;
case VIR_STORAGE_NET_PROTOCOL_NFS:
case VIR_STORAGE_NET_PROTOCOL_LAST:
case VIR_STORAGE_NET_PROTOCOL_NONE:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unexpected network protocol '%s'"),
virStorageNetProtocolTypeToString(src->protocol));
return NULL;
}
return ret;
}
int
qemuGetDriveSourceString(virStorageSourcePtr src,
qemuDomainSecretInfoPtr secinfo,
char **source)
{
int actualType = virStorageSourceGetActualType(src);
*source = NULL;
/* return 1 for empty sources */
if (virStorageSourceIsEmpty(src))
return 1;
switch ((virStorageType)actualType) {
case VIR_STORAGE_TYPE_BLOCK:
case VIR_STORAGE_TYPE_FILE:
case VIR_STORAGE_TYPE_DIR:
*source = g_strdup(src->path);
break;
case VIR_STORAGE_TYPE_NETWORK:
if (!(*source = qemuBuildNetworkDriveStr(src, secinfo)))
return -1;
break;
case VIR_STORAGE_TYPE_VOLUME:
case VIR_STORAGE_TYPE_NVME:
case VIR_STORAGE_TYPE_VHOST_USER:
case VIR_STORAGE_TYPE_NONE:
case VIR_STORAGE_TYPE_LAST:
break;
}
return 0;
}
bool
qemuDiskConfigBlkdeviotuneEnabled(virDomainDiskDefPtr disk)
{
return !!disk->blkdeviotune.group_name ||
virDomainBlockIoTuneInfoHasAny(&disk->blkdeviotune);
}
/* QEMU 1.2 and later have a binary flag -enable-fips that must be
* used for VNC auth to obey FIPS settings; but the flag only
* exists on Linux, and with no way to probe for it via QMP. Our
* solution: if FIPS mode is required, then unconditionally use
* the flag, regardless of qemu version, for the following matrix:
*
* old QEMU new QEMU
* FIPS enabled doesn't start VNC auth disabled
* FIPS disabled/missing VNC auth enabled VNC auth enabled
*
* In QEMU 5.2.0, use of -enable-fips was deprecated. In scenarios
* where FIPS is required, QEMU must be built against libgcrypt
* which automatically enforces FIPS compliance.
*/
bool
qemuCheckFips(virDomainObjPtr vm)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virQEMUCapsPtr qemuCaps = priv->qemuCaps;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_ENABLE_FIPS))
return false;
if (virFileExists("/proc/sys/crypto/fips_enabled")) {
g_autofree char *buf = NULL;
if (virFileReadAll("/proc/sys/crypto/fips_enabled", 10, &buf) < 0)
return false;
if (STREQ(buf, "1\n"))
return true;
}
return false;
}
/**
* qemuDiskBusIsSD:
* @bus: disk bus
*
* Unfortunately it is not possible to use -device for SD devices.
* Fortunately, those don't need static PCI addresses, so we can use -drive
* without -device.
*/
bool
qemuDiskBusIsSD(int bus)
{
return bus == VIR_DOMAIN_DISK_BUS_SD;
}
/**
* qemuDiskSourceNeedsProps:
* @src: disk source
*
* Returns true, if the disk source needs to be generated from the JSON
* representation. Otherwise, the disk source should be represented using
* the legacy representation.
*/
static bool
qemuDiskSourceNeedsProps(virStorageSourcePtr src,
virQEMUCapsPtr qemuCaps)
{
int actualType = virStorageSourceGetActualType(src);
if (actualType == VIR_STORAGE_TYPE_NETWORK &&
src->protocol == VIR_STORAGE_NET_PROTOCOL_GLUSTER &&
src->nhosts > 1)
return true;
if (actualType == VIR_STORAGE_TYPE_NETWORK &&
src->protocol == VIR_STORAGE_NET_PROTOCOL_VXHS)
return true;
if (actualType == VIR_STORAGE_TYPE_NETWORK &&
src->protocol == VIR_STORAGE_NET_PROTOCOL_ISCSI &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_ISCSI_PASSWORD_SECRET))
return true;
if (actualType == VIR_STORAGE_TYPE_NETWORK &&
src->protocol == VIR_STORAGE_NET_PROTOCOL_NBD &&
src->haveTLS == VIR_TRISTATE_BOOL_YES)
return true;
if (actualType == VIR_STORAGE_TYPE_NVME)
return true;
return false;
}
/**
* qemuDiskSourceGetProps:
* @src: disk source struct
*
* Returns the disk source struct wrapped so that it can be used as disk source
* directly by converting it from json.
*/
static virJSONValuePtr
qemuDiskSourceGetProps(virStorageSourcePtr src)
{
g_autoptr(virJSONValue) props = NULL;
virJSONValuePtr ret;
if (!(props = qemuBlockStorageSourceGetBackendProps(src,
QEMU_BLOCK_STORAGE_SOURCE_BACKEND_PROPS_LEGACY)))
return NULL;
if (virJSONValueObjectCreate(&ret, "a:file", &props, NULL) < 0)
return NULL;
return ret;
}
static int
qemuBuildDriveSourcePR(virBufferPtr buf,
virDomainDiskDefPtr disk)
{
g_autofree char *alias = NULL;
const char *defaultAlias = NULL;
if (!disk->src->pr)
return 0;
if (virStoragePRDefIsManaged(disk->src->pr))
defaultAlias = qemuDomainGetManagedPRAlias();
else if (!(alias = qemuDomainGetUnmanagedPRAlias(disk->info.alias)))
return -1;
virBufferAsprintf(buf, ",file.pr-manager=%s", alias ? alias : defaultAlias);
return 0;
}
static int
qemuBuildDriveSourceStr(virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps,
virBufferPtr buf)
{
int actualType = virStorageSourceGetActualType(disk->src);
qemuDomainStorageSourcePrivatePtr srcpriv = QEMU_DOMAIN_STORAGE_SOURCE_PRIVATE(disk->src);
qemuDomainSecretInfoPtr secinfo = NULL;
qemuDomainSecretInfoPtr encinfo = NULL;
g_autoptr(virJSONValue) srcprops = NULL;
g_autofree char *source = NULL;
bool rawluks = false;
if (srcpriv) {
secinfo = srcpriv->secinfo;
encinfo = srcpriv->encinfo;
}
if (qemuDiskSourceNeedsProps(disk->src, qemuCaps) &&
!(srcprops = qemuDiskSourceGetProps(disk->src)))
return -1;
if (!srcprops &&
qemuGetDriveSourceString(disk->src, secinfo, &source) < 0)
return -1;
/* nothing to format if the drive is empty */
if (!(source || srcprops) ||
((disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY ||
disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) &&
disk->tray_status == VIR_DOMAIN_DISK_TRAY_OPEN)) {
return 0;
}
if (actualType == VIR_STORAGE_TYPE_BLOCK &&
disk->tray_status == VIR_DOMAIN_DISK_TRAY_OPEN) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
disk->src->type == VIR_STORAGE_TYPE_VOLUME ?
_("tray status 'open' is invalid for block type volume") :
_("tray status 'open' is invalid for block type disk"));
return -1;
}
if (source) {
virBufferAddLit(buf, "file=");
/* for now the DIR based storage is handled by the magic FAT format */
if (actualType == VIR_STORAGE_TYPE_DIR) {
virBufferAddLit(buf, "fat:");
if (disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY)
virBufferAddLit(buf, "floppy:");
}
virQEMUBuildBufferEscapeComma(buf, source);
if (secinfo && secinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES)
virBufferAsprintf(buf, ",file.password-secret=%s", secinfo->s.aes.alias);
if (disk->src->debug)
virBufferAsprintf(buf, ",file.debug=%d", disk->src->debugLevel);
if (qemuBuildDriveSourcePR(buf, disk) < 0)
return -1;
} else {
if (!(source = virQEMUBuildDriveCommandlineFromJSON(srcprops)))
return -1;
virBufferAdd(buf, source, -1);
}
virBufferAddLit(buf, ",");
if (encinfo) {
if (disk->src->format == VIR_STORAGE_FILE_RAW) {
virBufferAsprintf(buf, "key-secret=%s,", encinfo->s.aes.alias);
rawluks = true;
} else if (disk->src->format == VIR_STORAGE_FILE_QCOW2 &&
disk->src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS) {
virBufferAddLit(buf, "encrypt.format=luks,");
virBufferAsprintf(buf, "encrypt.key-secret=%s,", encinfo->s.aes.alias);
}
}
if (disk->src->format > 0 &&
actualType != VIR_STORAGE_TYPE_DIR) {
const char *qemuformat = virStorageFileFormatTypeToString(disk->src->format);
if (rawluks)
qemuformat = "luks";
virBufferAsprintf(buf, "format=%s,", qemuformat);
}
return 0;
}
static void
qemuBuildDiskThrottling(virDomainDiskDefPtr disk,
virBufferPtr buf)
{
#define IOTUNE_ADD(_field, _label) \
if (disk->blkdeviotune._field) { \
virBufferAsprintf(buf, ",throttling." _label "=%llu", \
disk->blkdeviotune._field); \
}
IOTUNE_ADD(total_bytes_sec, "bps-total");
IOTUNE_ADD(read_bytes_sec, "bps-read");
IOTUNE_ADD(write_bytes_sec, "bps-write");
IOTUNE_ADD(total_iops_sec, "iops-total");
IOTUNE_ADD(read_iops_sec, "iops-read");
IOTUNE_ADD(write_iops_sec, "iops-write");
IOTUNE_ADD(total_bytes_sec_max, "bps-total-max");
IOTUNE_ADD(read_bytes_sec_max, "bps-read-max");
IOTUNE_ADD(write_bytes_sec_max, "bps-write-max");
IOTUNE_ADD(total_iops_sec_max, "iops-total-max");
IOTUNE_ADD(read_iops_sec_max, "iops-read-max");
IOTUNE_ADD(write_iops_sec_max, "iops-write-max");
IOTUNE_ADD(size_iops_sec, "iops-size");
if (disk->blkdeviotune.group_name) {
virBufferAddLit(buf, ",throttling.group=");
virQEMUBuildBufferEscapeComma(buf, disk->blkdeviotune.group_name);
}
IOTUNE_ADD(total_bytes_sec_max_length, "bps-total-max-length");
IOTUNE_ADD(read_bytes_sec_max_length, "bps-read-max-length");
IOTUNE_ADD(write_bytes_sec_max_length, "bps-write-max-length");
IOTUNE_ADD(total_iops_sec_max_length, "iops-total-max-length");
IOTUNE_ADD(read_iops_sec_max_length, "iops-read-max-length");
IOTUNE_ADD(write_iops_sec_max_length, "iops-write-max-length");
#undef IOTUNE_ADD
}
static void
qemuBuildDiskFrontendAttributeErrorPolicy(virDomainDiskDefPtr disk,
virBufferPtr buf)
{
const char *wpolicy = NULL;
const char *rpolicy = NULL;
if (disk->error_policy)
wpolicy = virDomainDiskErrorPolicyTypeToString(disk->error_policy);
if (disk->rerror_policy)
rpolicy = virDomainDiskErrorPolicyTypeToString(disk->rerror_policy);
if (disk->error_policy == VIR_DOMAIN_DISK_ERROR_POLICY_ENOSPACE) {
/* in the case of enospace, the option is spelled
* differently in qemu, and it's only valid for werror,
* not for rerror, so leave rerror NULL.
*/
wpolicy = "enospc";
} else if (!rpolicy) {
/* for other policies, rpolicy can match wpolicy */
rpolicy = wpolicy;
}
if (wpolicy)
virBufferAsprintf(buf, ",werror=%s", wpolicy);
if (rpolicy)
virBufferAsprintf(buf, ",rerror=%s", rpolicy);
}
static void
qemuBuildDiskFrontendAttributes(virDomainDiskDefPtr disk,
virBufferPtr buf)
{
/* generate geometry command string */
if (disk->geometry.cylinders > 0 &&
disk->geometry.heads > 0 &&
disk->geometry.sectors > 0) {
virBufferAsprintf(buf, ",cyls=%u,heads=%u,secs=%u",
disk->geometry.cylinders,
disk->geometry.heads,
disk->geometry.sectors);
if (disk->geometry.trans != VIR_DOMAIN_DISK_TRANS_DEFAULT)
virBufferAsprintf(buf, ",bios-chs-trans=%s",
virDomainDiskGeometryTransTypeToString(disk->geometry.trans));
}
if (disk->serial) {
virBufferAddLit(buf, ",serial=");
virBufferEscape(buf, '\\', " ", "%s", disk->serial);
}
}
static char *
qemuBuildDriveStr(virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER;
int detect_zeroes = virDomainDiskGetDetectZeroesMode(disk->discard,
disk->detect_zeroes);
if (qemuBuildDriveSourceStr(disk, qemuCaps, &opt) < 0)
return NULL;
if (!qemuDiskBusIsSD(disk->bus)) {
g_autofree char *drivealias = qemuAliasDiskDriveFromDisk(disk);
if (!drivealias)
return NULL;
virBufferAddLit(&opt, "if=none");
virBufferAsprintf(&opt, ",id=%s", drivealias);
} else {
virBufferAsprintf(&opt, "if=sd,index=%d",
virDiskNameToIndex(disk->dst));
}
/* werror/rerror are really frontend attributes, but older
* qemu requires them on -drive instead of -device */
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_STORAGE_WERROR))
qemuBuildDiskFrontendAttributeErrorPolicy(disk, &opt);
if (disk->src->readonly)
virBufferAddLit(&opt, ",readonly=on");
/* qemu rejects some parameters for an empty -drive, so we need to skip
* them in that case:
* cache: modifies properties of the format driver which is not present
* copy_on_read: really only works for floppies
* discard: modifies properties of format driver
* detect_zeroes: works but really depends on discard so it's useless
* iomode: setting it to 'native' requires a specific cache mode
*/
if (!virStorageSourceIsEmpty(disk->src)) {
if (disk->cachemode) {
virBufferAsprintf(&opt, ",cache=%s",
qemuDiskCacheV2TypeToString(disk->cachemode));
}
if (disk->copy_on_read) {
virBufferAsprintf(&opt, ",copy-on-read=%s",
virTristateSwitchTypeToString(disk->copy_on_read));
}
if (disk->discard) {
virBufferAsprintf(&opt, ",discard=%s",
virDomainDiskDiscardTypeToString(disk->discard));
}
if (detect_zeroes) {
virBufferAsprintf(&opt, ",detect-zeroes=%s",
virDomainDiskDetectZeroesTypeToString(detect_zeroes));
}
if (disk->iomode) {
virBufferAsprintf(&opt, ",aio=%s",
virDomainDiskIoTypeToString(disk->iomode));
}
}
qemuBuildDiskThrottling(disk, &opt);
return virBufferContentAndReset(&opt);
}
static bool
qemuCheckIOThreads(const virDomainDef *def,
virDomainDiskDefPtr disk)
{
/* Right "type" of disk" */
switch ((virDomainDiskBus)disk->bus) {
case VIR_DOMAIN_DISK_BUS_VIRTIO:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI &&
disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("IOThreads only available for virtio pci and "
"virtio ccw disk"));
return false;
}
break;
case VIR_DOMAIN_DISK_BUS_IDE:
case VIR_DOMAIN_DISK_BUS_FDC:
case VIR_DOMAIN_DISK_BUS_SCSI:
case VIR_DOMAIN_DISK_BUS_XEN:
case VIR_DOMAIN_DISK_BUS_USB:
case VIR_DOMAIN_DISK_BUS_UML:
case VIR_DOMAIN_DISK_BUS_SATA:
case VIR_DOMAIN_DISK_BUS_SD:
case VIR_DOMAIN_DISK_BUS_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("IOThreads not available for bus %s target %s"),
virDomainDiskBusTypeToString(disk->bus), disk->dst);
return false;
}
/* Can we find the disk iothread in the iothreadid list? */
if (!virDomainIOThreadIDFind(def, disk->iothread)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Disk iothread '%u' not defined in iothreadid"),
disk->iothread);
return false;
}
return true;
}
static int
qemuBuildDriveDevCacheStr(virDomainDiskDefPtr disk,
virBufferPtr buf,
virQEMUCapsPtr qemuCaps)
{
bool wb;
if (disk->cachemode == VIR_DOMAIN_DISK_CACHE_DEFAULT)
return 0;
/* VIR_DOMAIN_DISK_DEVICE_LUN translates into 'scsi-block'
* where any caching setting makes no sense. */
if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN)
return 0;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DISK_WRITE_CACHE))
return 0;
if (qemuDomainDiskCachemodeFlags(disk->cachemode, &wb, NULL, NULL) < 0)
return -1;
virBufferStrcat(buf, ",write-cache=",
virTristateSwitchTypeToString(virTristateSwitchFromBool(wb)),
NULL);
return 0;
}
char *
qemuBuildDiskDeviceStr(const virDomainDef *def,
virDomainDiskDefPtr disk,
unsigned int bootindex,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER;
const char *contAlias;
g_autofree char *backendAlias = NULL;
g_autofree char *scsiVPDDeviceId = NULL;
int controllerModel;
if (!qemuDomainCheckCCWS390AddressSupport(def, &disk->info, qemuCaps, disk->dst))
return NULL;
if (disk->iothread && !qemuCheckIOThreads(def, disk))
return NULL;
switch ((virDomainDiskBus) disk->bus) {
case VIR_DOMAIN_DISK_BUS_IDE:
if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
virBufferAddLit(&opt, "ide-cd");
else
virBufferAddLit(&opt, "ide-hd");
/* When domain has builtin IDE controller we don't put it onto cmd
* line. Therefore we can't set its alias. In that case, use the
* default one. */
if (qemuDomainHasBuiltinIDE(def)) {
contAlias = "ide";
} else {
if (!(contAlias = virDomainControllerAliasFind(def,
VIR_DOMAIN_CONTROLLER_TYPE_IDE,
disk->info.addr.drive.controller)))
return NULL;
}
virBufferAsprintf(&opt, ",bus=%s.%d,unit=%d",
contAlias,
disk->info.addr.drive.bus,
disk->info.addr.drive.unit);
break;
case VIR_DOMAIN_DISK_BUS_SCSI:
controllerModel = qemuDomainFindSCSIControllerModel(def, &disk->info);
if (controllerModel < 0)
return NULL;
if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) {
virBufferAddLit(&opt, "scsi-block");
} else {
if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
virBufferAddLit(&opt, "scsi-cd");
else
virBufferAddLit(&opt, "scsi-hd");
/* qemu historically used the name of -drive as one of the device
* ids in the Vital Product Data Device Identification page if
* disk serial was not set and the disk serial otherwise.
* To avoid a guest-visible regression we need to provide it
* ourselves especially for cases when -blockdev will be used */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_DISK_DEVICE_ID)) {
if (disk->serial) {
scsiVPDDeviceId = g_strdup(disk->serial);
} else {
if (!(scsiVPDDeviceId = qemuAliasDiskDriveFromDisk(disk)))
return NULL;
}
}
}
if (!(contAlias = virDomainControllerAliasFind(def, VIR_DOMAIN_CONTROLLER_TYPE_SCSI,
disk->info.addr.drive.controller)))
return NULL;
switch ((virDomainControllerModelSCSI)controllerModel) {
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_NCR53C90:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_DC390:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_AM53C974:
virBufferAsprintf(&opt, ",bus=%s.%d,scsi-id=%d",
contAlias,
disk->info.addr.drive.bus,
disk->info.addr.drive.unit);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_AUTO:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_BUSLOGIC:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSISAS1068:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VMPVSCSI:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_IBMVSCSI:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSISAS1078:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL:
virBufferAsprintf(&opt, ",bus=%s.0,channel=%d,scsi-id=%d,lun=%d",
contAlias,
disk->info.addr.drive.bus,
disk->info.addr.drive.target,
disk->info.addr.drive.unit);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_DEFAULT:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unexpected SCSI controller model %d"),
controllerModel);
return NULL;
}
if (scsiVPDDeviceId)
virBufferStrcat(&opt, ",device_id=", scsiVPDDeviceId, NULL);
break;
case VIR_DOMAIN_DISK_BUS_SATA:
if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
virBufferAddLit(&opt, "ide-cd");
else
virBufferAddLit(&opt, "ide-hd");
/* When domain has builtin SATA controller we don't put it onto cmd
* line. Therefore we can't set its alias. In that case, use the
* default one. */
if (qemuDomainIsQ35(def) &&
disk->info.addr.drive.controller == 0) {
contAlias = "ide";
} else {
if (!(contAlias = virDomainControllerAliasFind(def,
VIR_DOMAIN_CONTROLLER_TYPE_SATA,
disk->info.addr.drive.controller)))
return NULL;
}
virBufferAsprintf(&opt, ",bus=%s.%d",
contAlias,
disk->info.addr.drive.unit);
break;
case VIR_DOMAIN_DISK_BUS_VIRTIO:
if (virStorageSourceGetActualType(disk->src) == VIR_STORAGE_TYPE_VHOST_USER) {
if (qemuBuildVirtioDevStr(&opt, "vhost-user-blk", qemuCaps,
VIR_DOMAIN_DEVICE_DISK, disk) < 0) {
return NULL;
}
} else {
if (qemuBuildVirtioDevStr(&opt, "virtio-blk", qemuCaps,
VIR_DOMAIN_DEVICE_DISK, disk) < 0) {
return NULL;
}
}
if (disk->iothread)
virBufferAsprintf(&opt, ",iothread=iothread%u", disk->iothread);
qemuBuildIoEventFdStr(&opt, disk->ioeventfd, qemuCaps);
if (disk->event_idx &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BLK_EVENT_IDX)) {
virBufferAsprintf(&opt, ",event_idx=%s",
virTristateSwitchTypeToString(disk->event_idx));
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BLK_SCSI) &&
!(virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BLK_SCSI_DEFAULT_DISABLED) &&
disk->device != VIR_DOMAIN_DISK_DEVICE_LUN)) {
/* if sg_io is true but the scsi option isn't supported,
* that means it's just always on in this version of qemu.
*/
virBufferAsprintf(&opt, ",scsi=%s",
(disk->device == VIR_DOMAIN_DISK_DEVICE_LUN)
? "on" : "off");
}
if (disk->queues) {
virBufferAsprintf(&opt, ",num-queues=%u", disk->queues);
}
qemuBuildVirtioOptionsStr(&opt, disk->virtio);
if (qemuBuildDeviceAddressStr(&opt, def, &disk->info, qemuCaps) < 0)
return NULL;
break;
case VIR_DOMAIN_DISK_BUS_USB:
virBufferAddLit(&opt, "usb-storage");
if (qemuBuildDeviceAddressStr(&opt, def, &disk->info, qemuCaps) < 0)
return NULL;
break;
case VIR_DOMAIN_DISK_BUS_FDC:
virBufferAsprintf(&opt, "floppy,unit=%d", disk->info.addr.drive.unit);
break;
case VIR_DOMAIN_DISK_BUS_XEN:
case VIR_DOMAIN_DISK_BUS_UML:
case VIR_DOMAIN_DISK_BUS_SD:
case VIR_DOMAIN_DISK_BUS_LAST:
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk bus '%s' with device setup"),
NULLSTR(virDomainDiskBusTypeToString(disk->bus)));
return NULL;
}
if (disk->src->shared &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DISK_SHARE_RW))
virBufferAddLit(&opt, ",share-rw=on");
if (virStorageSourceGetActualType(disk->src) == VIR_STORAGE_TYPE_VHOST_USER) {
backendAlias = qemuDomainGetVhostUserChrAlias(disk->info.alias);
virBufferAsprintf(&opt, ",chardev=%s", backendAlias);
} else {
if (qemuDomainDiskGetBackendAlias(disk, qemuCaps, &backendAlias) < 0)
return NULL;
if (backendAlias)
virBufferAsprintf(&opt, ",drive=%s", backendAlias);
}
virBufferAsprintf(&opt, ",id=%s", disk->info.alias);
if (bootindex)
virBufferAsprintf(&opt, ",bootindex=%u", bootindex);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKIO)) {
if (disk->blockio.logical_block_size > 0)
virBufferAsprintf(&opt, ",logical_block_size=%u",
disk->blockio.logical_block_size);
if (disk->blockio.physical_block_size > 0)
virBufferAsprintf(&opt, ",physical_block_size=%u",
disk->blockio.physical_block_size);
}
if (disk->wwn) {
if (STRPREFIX(disk->wwn, "0x"))
virBufferAsprintf(&opt, ",wwn=%s", disk->wwn);
else
virBufferAsprintf(&opt, ",wwn=0x%s", disk->wwn);
}
if (disk->rotation_rate)
virBufferAsprintf(&opt, ",rotation_rate=%u", disk->rotation_rate);
if (disk->vendor) {
virBufferAddLit(&opt, ",vendor=");
virQEMUBuildBufferEscapeComma(&opt, disk->vendor);
}
if (disk->product) {
virBufferAddLit(&opt, ",product=");
virQEMUBuildBufferEscapeComma(&opt, disk->product);
}
if (disk->bus == VIR_DOMAIN_DISK_BUS_USB) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_STORAGE_REMOVABLE)) {
if (disk->removable == VIR_TRISTATE_SWITCH_ON)
virBufferAddLit(&opt, ",removable=on");
else
virBufferAddLit(&opt, ",removable=off");
}
}
if (qemuBuildDriveDevCacheStr(disk, &opt, qemuCaps) < 0)
return NULL;
qemuBuildDiskFrontendAttributes(disk, &opt);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_STORAGE_WERROR))
qemuBuildDiskFrontendAttributeErrorPolicy(disk, &opt);
return virBufferContentAndReset(&opt);
}
char *
qemuBuildZPCIDevStr(virDomainDeviceInfoPtr dev)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virBufferAsprintf(&buf,
"zpci,uid=%u,fid=%u,target=%s,id=zpci%u",
dev->addr.pci.zpci.uid.value,
dev->addr.pci.zpci.fid.value,
dev->alias,
dev->addr.pci.zpci.uid.value);
return virBufferContentAndReset(&buf);
}
static int
qemuCommandAddZPCIDevice(virCommandPtr cmd,
virDomainDeviceInfoPtr dev)
{
g_autofree char *devstr = NULL;
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildZPCIDevStr(dev)))
return -1;
virCommandAddArg(cmd, devstr);
return 0;
}
static int
qemuCommandAddExtDevice(virCommandPtr cmd,
virDomainDeviceInfoPtr dev)
{
if (dev->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI ||
dev->addr.pci.extFlags == VIR_PCI_ADDRESS_EXTENSION_NONE) {
return 0;
}
if (dev->addr.pci.extFlags & VIR_PCI_ADDRESS_EXTENSION_ZPCI)
return qemuCommandAddZPCIDevice(cmd, dev);
return 0;
}
static int
qemuBuildFloppyCommandLineControllerOptions(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
unsigned int bootFloppy)
{
g_auto(virBuffer) fdc_opts = VIR_BUFFER_INITIALIZER;
bool explicitfdc = qemuDomainNeedsFDC(def);
bool hasfloppy = false;
unsigned int bootindex;
char driveLetter;
size_t i;
virBufferAddLit(&fdc_opts, "isa-fdc,");
for (i = 0; i < def->ndisks; i++) {
g_autofree char *backendAlias = NULL;
g_autofree char *backendStr = NULL;
g_autofree char *bootindexStr = NULL;
virDomainDiskDefPtr disk = def->disks[i];
if (disk->bus != VIR_DOMAIN_DISK_BUS_FDC)
continue;
hasfloppy = true;
if (disk->info.bootIndex) {
bootindex = disk->info.bootIndex;
} else {
bootindex = bootFloppy;
bootFloppy = 0;
}
if (disk->info.addr.drive.unit)
driveLetter = 'B';
else
driveLetter = 'A';
if (bootindex)
bootindexStr = g_strdup_printf("bootindex%c=%u", driveLetter, bootindex);
/* with -blockdev we setup the floppy device and it's backend with -device */
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV)) {
if (qemuDomainDiskGetBackendAlias(disk, qemuCaps, &backendAlias) < 0)
return -1;
if (backendAlias)
backendStr = g_strdup_printf("drive%c=%s", driveLetter, backendAlias);
}
if (!explicitfdc) {
if (backendStr) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "isa-fdc.%s", backendStr);
}
if (bootindexStr) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "isa-fdc.%s", bootindexStr);
}
} else {
virBufferStrcat(&fdc_opts, backendStr, ",", NULL);
virBufferStrcat(&fdc_opts, bootindexStr, ",", NULL);
}
}
if (explicitfdc && hasfloppy) {
/* Newer Q35 machine types require an explicit FDC controller */
virBufferTrim(&fdc_opts, ",");
virCommandAddArg(cmd, "-device");
virCommandAddArgBuffer(cmd, &fdc_opts);
}
return 0;
}
static int
qemuBuildObjectCommandline(virCommandPtr cmd,
virJSONValuePtr objProps,
virQEMUCaps *qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
if (!objProps)
return 0;
if (qemuBuildObjectCommandlineFromJSON(&buf, objProps, qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static int
qemuBuildBlockStorageSourceAttachDataCommandline(virCommandPtr cmd,
qemuBlockStorageSourceAttachDataPtr data,
virQEMUCaps *qemuCaps)
{
char *tmp;
if (qemuBuildObjectCommandline(cmd, data->prmgrProps, qemuCaps) < 0 ||
qemuBuildObjectCommandline(cmd, data->authsecretProps, qemuCaps) < 0 ||
qemuBuildObjectCommandline(cmd, data->encryptsecretProps, qemuCaps) < 0 ||
qemuBuildObjectCommandline(cmd, data->httpcookiesecretProps, qemuCaps) < 0 ||
qemuBuildObjectCommandline(cmd, data->tlsKeySecretProps, qemuCaps) < 0 ||
qemuBuildObjectCommandline(cmd, data->tlsProps, qemuCaps) < 0)
return -1;
if (data->driveCmd)
virCommandAddArgList(cmd, "-drive", data->driveCmd, NULL);
if (data->chardevCmd)
virCommandAddArgList(cmd, "-chardev", data->chardevCmd, NULL);
if (data->storageProps) {
if (!(tmp = virJSONValueToString(data->storageProps, false)))
return -1;
virCommandAddArgList(cmd, "-blockdev", tmp, NULL);
VIR_FREE(tmp);
}
if (data->storageSliceProps) {
if (!(tmp = virJSONValueToString(data->storageSliceProps, false)))
return -1;
virCommandAddArgList(cmd, "-blockdev", tmp, NULL);
VIR_FREE(tmp);
}
if (data->formatProps) {
if (!(tmp = virJSONValueToString(data->formatProps, false)))
return -1;
virCommandAddArgList(cmd, "-blockdev", tmp, NULL);
VIR_FREE(tmp);
}
return 0;
}
static int
qemuBuildDiskSourceCommandLine(virCommandPtr cmd,
virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps)
{
g_autoptr(qemuBlockStorageSourceChainData) data = NULL;
g_autoptr(virJSONValue) copyOnReadProps = NULL;
g_autofree char *copyOnReadPropsStr = NULL;
size_t i;
if (virStorageSourceGetActualType(disk->src) == VIR_STORAGE_TYPE_VHOST_USER) {
if (!(data = qemuBuildStorageSourceChainAttachPrepareChardev(disk)))
return -1;
} else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV) &&
!qemuDiskBusIsSD(disk->bus)) {
if (virStorageSourceIsEmpty(disk->src))
return 0;
if (!(data = qemuBuildStorageSourceChainAttachPrepareBlockdev(disk->src,
qemuCaps)))
return -1;
if (disk->copy_on_read == VIR_TRISTATE_SWITCH_ON &&
!(copyOnReadProps = qemuBlockStorageGetCopyOnReadProps(disk)))
return -1;
} else {
if (!(data = qemuBuildStorageSourceChainAttachPrepareDrive(disk, qemuCaps)))
return -1;
}
for (i = data->nsrcdata; i > 0; i--) {
if (qemuBuildBlockStorageSourceAttachDataCommandline(cmd,
data->srcdata[i - 1],
qemuCaps) < 0)
return -1;
}
if (copyOnReadProps) {
if (!(copyOnReadPropsStr = virJSONValueToString(copyOnReadProps, false)))
return -1;
virCommandAddArgList(cmd, "-blockdev", copyOnReadPropsStr, NULL);
}
return 0;
}
static int
qemuBuildDiskCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps,
unsigned int bootindex)
{
g_autofree char *optstr = NULL;
if (qemuBuildDiskSourceCommandLine(cmd, disk, qemuCaps) < 0)
return -1;
/* SD cards are currently instantiated via -drive if=sd, so the -device
* part must be skipped */
if (qemuDiskBusIsSD(disk->bus))
return 0;
/* floppy devices are instantiated via -drive ...,if=none and bound to the
* controller via -global isa-fdc.driveA/B options in the pre-blockdev era */
if (disk->bus == VIR_DOMAIN_DISK_BUS_FDC &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV))
return 0;
if (qemuCommandAddExtDevice(cmd, &disk->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildDiskDeviceStr(def, disk, bootindex,
qemuCaps)))
return -1;
virCommandAddArg(cmd, optstr);
return 0;
}
static int
qemuBuildDisksCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
unsigned int bootCD = 0;
unsigned int bootFloppy = 0;
unsigned int bootDisk = 0;
bool blockdev = virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV);
for (i = 0; i < def->os.nBootDevs; i++) {
switch (def->os.bootDevs[i]) {
case VIR_DOMAIN_BOOT_CDROM:
bootCD = i + 1;
break;
case VIR_DOMAIN_BOOT_FLOPPY:
bootFloppy = i + 1;
break;
case VIR_DOMAIN_BOOT_DISK:
bootDisk = i + 1;
break;
}
}
/* If we want to express the floppy drives via -device, the controller needs
* to be instantiated prior to that */
if (blockdev &&
qemuBuildFloppyCommandLineControllerOptions(cmd, def, qemuCaps, bootFloppy) < 0)
return -1;
for (i = 0; i < def->ndisks; i++) {
virDomainDiskDefPtr disk = def->disks[i];
unsigned int bootindex = 0;
if (disk->info.bootIndex) {
bootindex = disk->info.bootIndex;
} else {
switch (disk->device) {
case VIR_DOMAIN_DISK_DEVICE_CDROM:
bootindex = bootCD;
bootCD = 0;
break;
case VIR_DOMAIN_DISK_DEVICE_DISK:
case VIR_DOMAIN_DISK_DEVICE_LUN:
bootindex = bootDisk;
bootDisk = 0;
break;
}
}
/* The floppy device itself does not support the bootindex property
* so we need to set it up for the controller */
if (disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY)
bootindex = 0;
if (qemuBuildDiskCommandLine(cmd, def, disk, qemuCaps, bootindex) < 0)
return -1;
}
if (!blockdev &&
qemuBuildFloppyCommandLineControllerOptions(cmd, def, qemuCaps, bootFloppy) < 0)
return -1;
return 0;
}
static int
qemuBuildVHostUserFsCommandLine(virCommandPtr cmd,
virDomainFSDef *fs,
const virDomainDef *def,
qemuDomainObjPrivatePtr priv)
{
g_autofree char *chardev_alias = NULL;
g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER;
chardev_alias = qemuDomainGetVhostUserChrAlias(fs->info.alias);
virCommandAddArg(cmd, "-chardev");
virBufferAddLit(&opt, "socket");
virBufferAsprintf(&opt, ",id=%s", chardev_alias);
virBufferAddLit(&opt, ",path=");
virQEMUBuildBufferEscapeComma(&opt, QEMU_DOMAIN_FS_PRIVATE(fs)->vhostuser_fs_sock);
virCommandAddArgBuffer(cmd, &opt);
virCommandAddArg(cmd, "-device");
if (qemuBuildVirtioDevStr(&opt, "vhost-user-fs", priv->qemuCaps,
VIR_DOMAIN_DEVICE_FS, fs) < 0)
return -1;
virBufferAsprintf(&opt, ",chardev=%s", chardev_alias);
if (fs->queue_size)
virBufferAsprintf(&opt, ",queue-size=%llu", fs->queue_size);
virBufferAddLit(&opt, ",tag=");
virQEMUBuildBufferEscapeComma(&opt, fs->dst);
qemuBuildVirtioOptionsStr(&opt, fs->virtio);
if (fs->info.bootIndex)
virBufferAsprintf(&opt, ",bootindex=%u", fs->info.bootIndex);
if (qemuBuildDeviceAddressStr(&opt, def, &fs->info, priv->qemuCaps) < 0)
return -1;
virCommandAddArgBuffer(cmd, &opt);
return 0;
}
static char *
qemuBuildFSStr(virDomainFSDefPtr fs)
{
g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER;
const char *wrpolicy = virDomainFSWrpolicyTypeToString(fs->wrpolicy);
if (fs->fsdriver == VIR_DOMAIN_FS_DRIVER_TYPE_PATH ||
fs->fsdriver == VIR_DOMAIN_FS_DRIVER_TYPE_DEFAULT) {
virBufferAddLit(&opt, "local");
if (fs->accessmode == VIR_DOMAIN_FS_ACCESSMODE_MAPPED) {
virBufferAddLit(&opt, ",security_model=mapped");
} else if (fs->accessmode == VIR_DOMAIN_FS_ACCESSMODE_PASSTHROUGH) {
virBufferAddLit(&opt, ",security_model=passthrough");
} else if (fs->accessmode == VIR_DOMAIN_FS_ACCESSMODE_SQUASH) {
virBufferAddLit(&opt, ",security_model=none");
}
if (fs->multidevs == VIR_DOMAIN_FS_MULTIDEVS_REMAP) {
virBufferAddLit(&opt, ",multidevs=remap");
} else if (fs->multidevs == VIR_DOMAIN_FS_MULTIDEVS_FORBID) {
virBufferAddLit(&opt, ",multidevs=forbid");
} else if (fs->multidevs == VIR_DOMAIN_FS_MULTIDEVS_WARN) {
virBufferAddLit(&opt, ",multidevs=warn");
}
if (fs->fmode) {
virBufferAsprintf(&opt, ",fmode=%04o", fs->fmode);
}
if (fs->dmode) {
virBufferAsprintf(&opt, ",dmode=%04o", fs->dmode);
}
} else if (fs->fsdriver == VIR_DOMAIN_FS_DRIVER_TYPE_HANDLE) {
/* removed since qemu 4.0.0 see v3.1.0-29-g93aee84f57 */
virBufferAddLit(&opt, "handle");
}
if (fs->wrpolicy)
virBufferAsprintf(&opt, ",writeout=%s", wrpolicy);
virBufferAsprintf(&opt, ",id=%s%s", QEMU_FSDEV_HOST_PREFIX, fs->info.alias);
virBufferAddLit(&opt, ",path=");
virQEMUBuildBufferEscapeComma(&opt, fs->src->path);
if (fs->readonly)
virBufferAddLit(&opt, ",readonly");
return virBufferContentAndReset(&opt);
}
static char *
qemuBuildFSDevStr(const virDomainDef *def,
virDomainFSDefPtr fs,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER;
if (qemuBuildVirtioDevStr(&opt, "virtio-9p", qemuCaps,
VIR_DOMAIN_DEVICE_FS, fs) < 0)
return NULL;
virBufferAsprintf(&opt, ",id=%s", fs->info.alias);
virBufferAsprintf(&opt, ",fsdev=%s%s",
QEMU_FSDEV_HOST_PREFIX, fs->info.alias);
virBufferAddLit(&opt, ",mount_tag=");
virQEMUBuildBufferEscapeComma(&opt, fs->dst);
qemuBuildVirtioOptionsStr(&opt, fs->virtio);
if (qemuBuildDeviceAddressStr(&opt, def, &fs->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&opt);
}
static int
qemuBuildFSDevCommandLine(virCommandPtr cmd,
virDomainFSDefPtr fs,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
g_autofree char *fsdevstr = NULL;
g_autofree char *devicestr = NULL;
virCommandAddArg(cmd, "-fsdev");
if (!(fsdevstr = qemuBuildFSStr(fs)))
return -1;
virCommandAddArg(cmd, fsdevstr);
if (qemuCommandAddExtDevice(cmd, &fs->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
if (!(devicestr = qemuBuildFSDevStr(def, fs, qemuCaps)))
return -1;
virCommandAddArg(cmd, devicestr);
return 0;
}
static int
qemuBuildFilesystemCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
qemuDomainObjPrivatePtr priv)
{
size_t i;
for (i = 0; i < def->nfss; i++) {
switch ((virDomainFSDriverType) def->fss[i]->fsdriver) {
case VIR_DOMAIN_FS_DRIVER_TYPE_DEFAULT:
case VIR_DOMAIN_FS_DRIVER_TYPE_PATH:
case VIR_DOMAIN_FS_DRIVER_TYPE_HANDLE:
/* these drivers are handled by virtio-9p-pci */
if (qemuBuildFSDevCommandLine(cmd, def->fss[i], def, qemuCaps) < 0)
return -1;
break;
case VIR_DOMAIN_FS_DRIVER_TYPE_VIRTIOFS:
/* vhost-user-fs-pci */
if (qemuBuildVHostUserFsCommandLine(cmd, def->fss[i], def, priv) < 0)
return -1;
break;
case VIR_DOMAIN_FS_DRIVER_TYPE_LOOP:
case VIR_DOMAIN_FS_DRIVER_TYPE_NBD:
case VIR_DOMAIN_FS_DRIVER_TYPE_PLOOP:
case VIR_DOMAIN_FS_DRIVER_TYPE_LAST:
break;
}
}
return 0;
}
static int
qemuControllerModelUSBToCaps(int model)
{
switch (model) {
case VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX3_UHCI:
return QEMU_CAPS_PIIX3_USB_UHCI;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX4_UHCI:
return QEMU_CAPS_PIIX4_USB_UHCI;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_EHCI:
return QEMU_CAPS_USB_EHCI;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_EHCI1:
case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI1:
case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI2:
case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI3:
return QEMU_CAPS_ICH9_USB_EHCI1;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_VT82C686B_UHCI:
return QEMU_CAPS_VT82C686B_USB_UHCI;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_PCI_OHCI:
return QEMU_CAPS_PCI_OHCI;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_NEC_XHCI:
return QEMU_CAPS_NEC_USB_XHCI;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_QEMU_XHCI:
return QEMU_CAPS_DEVICE_QEMU_XHCI;
default:
return -1;
}
}
static const char *
qemuBuildUSBControllerFindMasterAlias(const virDomainDef *domainDef,
const virDomainControllerDef *def)
{
size_t i;
for (i = 0; i < domainDef->ncontrollers; i++) {
const virDomainControllerDef *tmp = domainDef->controllers[i];
if (tmp->type != VIR_DOMAIN_CONTROLLER_TYPE_USB)
continue;
if (tmp->idx != def->idx)
continue;
if (tmp->info.mastertype == VIR_DOMAIN_CONTROLLER_MASTER_USB)
continue;
return tmp->info.alias;
}
return NULL;
}
static int
qemuBuildUSBControllerDevStr(const virDomainDef *domainDef,
virDomainControllerDefPtr def,
virQEMUCapsPtr qemuCaps,
virBuffer *buf)
{
const char *smodel;
int model, flags;
model = def->model;
if (model == VIR_DOMAIN_CONTROLLER_MODEL_USB_DEFAULT) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("no model provided for USB controller"));
return -1;
}
smodel = qemuControllerModelUSBTypeToString(model);
flags = qemuControllerModelUSBToCaps(model);
if (flags == -1 || !virQEMUCapsGet(qemuCaps, flags)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("%s not supported in this QEMU binary"), smodel);
return -1;
}
virBufferAsprintf(buf, "%s", smodel);
if (def->opts.usbopts.ports != -1) {
if ((model != VIR_DOMAIN_CONTROLLER_MODEL_USB_NEC_XHCI ||
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_NEC_USB_XHCI_PORTS)) &&
model != VIR_DOMAIN_CONTROLLER_MODEL_USB_QEMU_XHCI) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("usb controller type %s doesn't support 'ports' "
"with this QEMU binary"), smodel);
return -1;
}
virBufferAsprintf(buf, ",p2=%d,p3=%d",
def->opts.usbopts.ports, def->opts.usbopts.ports);
}
if (def->info.mastertype == VIR_DOMAIN_CONTROLLER_MASTER_USB) {
const char *masterbus;
if (!(masterbus = qemuBuildUSBControllerFindMasterAlias(domainDef, def))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("masterbus not found"));
return -1;
}
virBufferAsprintf(buf, ",masterbus=%s.0,firstport=%d",
masterbus, def->info.master.usb.startport);
} else {
virBufferAsprintf(buf, ",id=%s", def->info.alias);
}
return 0;
}
/**
* qemuBuildControllerDevStr:
* @domainDef: domain definition
* @def: controller definition
* @qemuCaps: QEMU binary capabilities
* @devstr: device string
* @nusbcontroller: number of USB controllers
*
* Turn @def into a description of the controller that QEMU will understand,
* to be used either on the command line or through the monitor.
*
* The description will be returned in @devstr and can be NULL, eg. when
* passing in one of the built-in controllers. The returned string must be
* freed by the caller.
*
* The number pointed to by @nusbcontroller will be increased by one every
* time the description for a USB controller has been generated successfully.
*
* Returns: 0 on success, <0 on failure
*/
int
qemuBuildControllerDevStr(const virDomainDef *domainDef,
virDomainControllerDefPtr def,
virQEMUCapsPtr qemuCaps,
char **devstr)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
*devstr = NULL;
switch ((virDomainControllerType)def->type) {
case VIR_DOMAIN_CONTROLLER_TYPE_SCSI:
switch ((virDomainControllerModelSCSI) def->model) {
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL:
if (qemuBuildVirtioDevStr(&buf, "virtio-scsi", qemuCaps,
VIR_DOMAIN_DEVICE_CONTROLLER, def) < 0) {
return -1;
}
if (def->iothread) {
virBufferAsprintf(&buf, ",iothread=iothread%u",
def->iothread);
}
qemuBuildVirtioOptionsStr(&buf, def->virtio);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC:
virBufferAddLit(&buf, "lsi");
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_IBMVSCSI:
virBufferAddLit(&buf, "spapr-vscsi");
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSISAS1068:
virBufferAddLit(&buf, "mptsas1068");
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSISAS1078:
virBufferAddLit(&buf, "megasas");
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VMPVSCSI:
virBufferAddLit(&buf, "pvscsi");
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_AM53C974:
virBufferAddLit(&buf, "am53c974");
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_DC390:
virBufferAddLit(&buf, "dc-390");
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_AUTO:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_BUSLOGIC:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_NCR53C90: /* It is built-in dev */
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Unsupported controller model: %s"),
virDomainControllerModelSCSITypeToString(def->model));
return -1;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_DEFAULT:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unexpected SCSI controller model %d"),
def->model);
return -1;
}
virBufferAsprintf(&buf, ",id=%s", def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL:
if (qemuBuildVirtioDevStr(&buf, "virtio-serial", qemuCaps,
VIR_DOMAIN_DEVICE_CONTROLLER, def) < 0) {
return -1;
}
virBufferAsprintf(&buf, ",id=%s", def->info.alias);
if (def->opts.vioserial.ports != -1) {
virBufferAsprintf(&buf, ",max_ports=%d",
def->opts.vioserial.ports);
}
if (def->opts.vioserial.vectors != -1) {
virBufferAsprintf(&buf, ",vectors=%d",
def->opts.vioserial.vectors);
}
qemuBuildVirtioOptionsStr(&buf, def->virtio);
break;
case VIR_DOMAIN_CONTROLLER_TYPE_CCID:
virBufferAsprintf(&buf, "usb-ccid,id=%s", def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_TYPE_SATA:
virBufferAsprintf(&buf, "ahci,id=%s", def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_TYPE_USB:
if (qemuBuildUSBControllerDevStr(domainDef, def, qemuCaps, &buf) == -1)
return -1;
break;
case VIR_DOMAIN_CONTROLLER_TYPE_PCI: {
const virDomainPCIControllerOpts *pciopts = &def->opts.pciopts;
const char *modelName = virDomainControllerPCIModelNameTypeToString(pciopts->modelName);
/* Skip the implicit PHB for pSeries guests */
if (def->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT &&
pciopts->modelName == VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_SPAPR_PCI_HOST_BRIDGE &&
pciopts->targetIndex == 0) {
return 0;
}
if (!modelName) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unknown virDomainControllerPCIModelName value: %d"),
pciopts->modelName);
return -1;
}
switch ((virDomainControllerModelPCI) def->model) {
case VIR_DOMAIN_CONTROLLER_MODEL_PCI_BRIDGE:
virBufferAsprintf(&buf, "%s,chassis_nr=%d,id=%s",
modelName, pciopts->chassisNr,
def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCI_EXPANDER_BUS:
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_EXPANDER_BUS:
virBufferAsprintf(&buf, "%s,bus_nr=%d,id=%s",
modelName, pciopts->busNr,
def->info.alias);
if (pciopts->numaNode != -1) {
virBufferAsprintf(&buf, ",numa_node=%d",
pciopts->numaNode);
}
break;
case VIR_DOMAIN_CONTROLLER_MODEL_DMI_TO_PCI_BRIDGE:
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_SWITCH_UPSTREAM_PORT:
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_TO_PCI_BRIDGE:
virBufferAsprintf(&buf, "%s,id=%s", modelName, def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT_PORT:
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_SWITCH_DOWNSTREAM_PORT:
virBufferAsprintf(&buf, "%s,port=0x%x,chassis=%d,id=%s",
modelName, pciopts->port,
pciopts->chassis, def->info.alias);
if (pciopts->hotplug != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(&buf, ",hotplug=%s",
virTristateSwitchTypeToString(pciopts->hotplug));
}
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT:
virBufferAsprintf(&buf, "%s,index=%d,id=%s",
modelName, pciopts->targetIndex,
def->info.alias);
if (pciopts->numaNode != -1)
virBufferAsprintf(&buf, ",numa_node=%d", pciopts->numaNode);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Unsupported PCI Express root controller"));
return -1;
case VIR_DOMAIN_CONTROLLER_MODEL_PCI_DEFAULT:
case VIR_DOMAIN_CONTROLLER_MODEL_PCI_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unexpected PCI controller model %d"),
def->model);
return -1;
}
break;
}
case VIR_DOMAIN_CONTROLLER_TYPE_IDE:
case VIR_DOMAIN_CONTROLLER_TYPE_FDC:
case VIR_DOMAIN_CONTROLLER_TYPE_XENBUS:
case VIR_DOMAIN_CONTROLLER_TYPE_ISA:
case VIR_DOMAIN_CONTROLLER_TYPE_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Unsupported controller type: %s"),
virDomainControllerTypeToString(def->type));
return -1;
}
if (def->queues)
virBufferAsprintf(&buf, ",num_queues=%u", def->queues);
if (def->cmd_per_lun)
virBufferAsprintf(&buf, ",cmd_per_lun=%u", def->cmd_per_lun);
if (def->max_sectors)
virBufferAsprintf(&buf, ",max_sectors=%u", def->max_sectors);
qemuBuildIoEventFdStr(&buf, def->ioeventfd, qemuCaps);
if (qemuBuildDeviceAddressStr(&buf, domainDef, &def->info, qemuCaps) < 0)
return -1;
*devstr = virBufferContentAndReset(&buf);
return 0;
}
static bool
qemuBuildDomainForbidLegacyUSBController(const virDomainDef *def)
{
if (qemuDomainIsQ35(def) ||
qemuDomainIsARMVirt(def) ||
qemuDomainIsRISCVVirt(def))
return true;
return false;
}
static int
qemuBuildLegacyUSBControllerCommandLine(virCommandPtr cmd,
const virDomainDef *def)
{
size_t i;
size_t nlegacy = 0;
size_t nusb = 0;
for (i = 0; i < def->ncontrollers; i++) {
virDomainControllerDefPtr cont = def->controllers[i];
if (cont->type != VIR_DOMAIN_CONTROLLER_TYPE_USB)
continue;
/* If we have mode='none', there are no other USB controllers */
if (cont->model == VIR_DOMAIN_CONTROLLER_MODEL_USB_NONE)
return 0;
if (cont->model == VIR_DOMAIN_CONTROLLER_MODEL_USB_DEFAULT)
nlegacy++;
else
nusb++;
}
if (nlegacy > 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Multiple legacy USB controllers are "
"not supported"));
return -1;
}
if (nusb == 0 &&
!qemuBuildDomainForbidLegacyUSBController(def) &&
!ARCH_IS_S390(def->os.arch)) {
/* We haven't added any USB controller yet, but we haven't been asked
* not to add one either. Add a legacy USB controller, unless we're
* creating a kind of guest we want to keep legacy-free */
virCommandAddArg(cmd, "-usb");
}
return 0;
}
/**
* qemuBuildSkipController:
* @controller: Controller to check
* @def: Domain definition
*
* Returns true if this controller can be skipped for command line
* generation or device validation.
*/
static bool
qemuBuildSkipController(const virDomainControllerDef *controller,
const virDomainDef *def)
{
/* skip pcie-root */
if (controller->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
controller->model == VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT)
return true;
/* Skip pci-root, except for pSeries guests (which actually
* support more than one PCI Host Bridge per guest) */
if (!qemuDomainIsPSeries(def) &&
controller->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
controller->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT)
return true;
/* first SATA controller on Q35 machines is implicit */
if (controller->type == VIR_DOMAIN_CONTROLLER_TYPE_SATA &&
controller->idx == 0 && qemuDomainIsQ35(def))
return true;
/* first IDE controller is implicit on various machines */
if (controller->type == VIR_DOMAIN_CONTROLLER_TYPE_IDE &&
controller->idx == 0 && qemuDomainHasBuiltinIDE(def))
return true;
/* first ESP SCSI controller is implicit on certain machine types */
if (controller->type == VIR_DOMAIN_CONTROLLER_TYPE_SCSI &&
controller->idx == 0 &&
controller->model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_NCR53C90 &&
qemuDomainHasBuiltinESP(def)) {
return true;
}
return false;
}
static int
qemuBuildControllersByTypeCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
virDomainControllerType type)
{
size_t i;
for (i = 0; i < def->ncontrollers; i++) {
virDomainControllerDefPtr cont = def->controllers[i];
g_autofree char *devstr = NULL;
if (cont->type != type)
continue;
if (qemuBuildSkipController(cont, def))
continue;
/* skip USB controllers with type none.*/
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_USB &&
cont->model == VIR_DOMAIN_CONTROLLER_MODEL_USB_NONE) {
continue;
}
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_USB &&
cont->model == VIR_DOMAIN_CONTROLLER_MODEL_USB_DEFAULT &&
!qemuBuildDomainForbidLegacyUSBController(def)) {
/* An appropriate default USB controller model should already
* have been selected in qemuDomainDeviceDefPostParse(); if
* we still have no model by now, we have to fall back to the
* legacy USB controller.
*
* Note that we *don't* want to end up with the legacy USB
* controller for q35 and virt machines, so we go ahead and
* fail in qemuBuildControllerDevStr(); on the other hand,
* for s390 machines we want to ignore any USB controller
* (see 548ba43028 for the full story), so we skip
* qemuBuildControllerDevStr() but we don't ultimately end
* up adding the legacy USB controller */
continue;
}
if (qemuBuildControllerDevStr(def, cont, qemuCaps, &devstr) < 0)
return -1;
if (devstr) {
if (qemuCommandAddExtDevice(cmd, &cont->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
virCommandAddArg(cmd, devstr);
}
}
return 0;
}
static int
qemuBuildControllersCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
int contOrder[] = {
/*
* List of controller types that we add commandline args for,
* *in the order we want to add them*.
*
* The floppy controller is implicit on PIIX4 and older Q35
* machines. For newer Q35 machines it is added out of the
* controllers loop, after the floppy drives.
*
* We don't add PCI/PCIe root controller either, because it's
* implicit, but we do add PCI bridges and other PCI
* controllers, so we leave that in to check each
* one. Likewise, we don't do anything for the primary IDE
* controller on an i440fx machine or primary SATA on q35, but
* we do add those beyond these two exceptions.
*
* CCID controllers are formatted separately after USB hubs,
* because they go on the USB bus.
*/
VIR_DOMAIN_CONTROLLER_TYPE_PCI,
VIR_DOMAIN_CONTROLLER_TYPE_USB,
VIR_DOMAIN_CONTROLLER_TYPE_SCSI,
VIR_DOMAIN_CONTROLLER_TYPE_IDE,
VIR_DOMAIN_CONTROLLER_TYPE_SATA,
VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL,
};
for (i = 0; i < G_N_ELEMENTS(contOrder); i++) {
if (qemuBuildControllersByTypeCommandLine(cmd, def, qemuCaps, contOrder[i]) < 0)
return -1;
}
if (qemuBuildLegacyUSBControllerCommandLine(cmd, def) < 0)
return -1;
return 0;
}
static int
qemuBuildMemoryBackendPropsShare(virJSONValuePtr props,
virDomainMemoryAccess memAccess)
{
switch (memAccess) {
case VIR_DOMAIN_MEMORY_ACCESS_SHARED:
return virJSONValueObjectAdd(props, "b:share", true, NULL);
case VIR_DOMAIN_MEMORY_ACCESS_PRIVATE:
return virJSONValueObjectAdd(props, "b:share", false, NULL);
case VIR_DOMAIN_MEMORY_ACCESS_DEFAULT:
case VIR_DOMAIN_MEMORY_ACCESS_LAST:
break;
}
return 0;
}
static int
qemuBuildMemoryGetDefaultPagesize(virQEMUDriverConfigPtr cfg,
unsigned long long *pagesize)
{
virHugeTLBFSPtr p;
if (!cfg->nhugetlbfs) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("hugetlbfs filesystem is not mounted "
"or disabled by administrator config"));
return -1;
}
if (!(p = virFileGetDefaultHugepage(cfg->hugetlbfs, cfg->nhugetlbfs)))
p = &cfg->hugetlbfs[0];
*pagesize = p->size;
return 0;
}
/**
* qemuBuildMemoryBackendProps:
* @backendProps: [out] constructed object
* @alias: alias of the device
* @cfg: qemu driver config object
* @priv: pointer to domain private object
* @def: domain definition object
* @mem: memory definition object
* @force: forcibly use one of the backends
*
* Creates a configuration object that represents memory backend of given guest
* NUMA node (domain @def and @mem). Use @priv->autoNodeset to fine tune the
* placement of the memory on the host NUMA nodes.
*
* By default, if no memory-backend-* object is necessary to fulfil the guest
* configuration value of 1 is returned. This behaviour can be suppressed by
* setting @force to true in which case 0 would be returned.
*
* Then, if one of the three memory-backend-* should be used, the @priv->qemuCaps
* is consulted to check if qemu does support it.
*
* Returns: 0 on success,
* 1 on success and if there's no need to use memory-backend-*
* -1 on error.
*/
int
qemuBuildMemoryBackendProps(virJSONValuePtr *backendProps,
const char *alias,
virQEMUDriverConfigPtr cfg,
qemuDomainObjPrivatePtr priv,
const virDomainDef *def,
const virDomainMemoryDef *mem,
bool force,
bool systemMemory)
{
const char *backendType = "memory-backend-file";
virDomainNumatuneMemMode mode;
const long system_page_size = virGetSystemPageSizeKB();
virDomainMemoryAccess memAccess = mem->access;
size_t i;
g_autofree char *memPath = NULL;
bool prealloc = false;
virBitmapPtr nodemask = NULL;
int rc;
g_autoptr(virJSONValue) props = NULL;
bool nodeSpecified = virDomainNumatuneNodeSpecified(def->numa, mem->targetNode);
unsigned long long pagesize = mem->pagesize;
bool needHugepage = !!pagesize;
bool useHugepage = !!pagesize;
int discard = mem->discard;
bool disableCanonicalPath = false;
/* Disabling canonical path is required for migration compatibility of
* system memory objects, see below */
/* The difference between @needHugepage and @useHugepage is that the latter
* is true whenever huge page is defined for the current memory cell.
* Either directly, or transitively via global domain huge pages. The
* former is true whenever "memory-backend-file" must be used to satisfy
* @useHugepage. */
*backendProps = NULL;
if (mem->targetNode >= 0) {
/* memory devices could provide a invalid guest node */
if (mem->targetNode >= virDomainNumaGetNodeCount(def->numa)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("can't add memory backend for guest node '%d' as "
"the guest has only '%zu' NUMA nodes configured"),
mem->targetNode, virDomainNumaGetNodeCount(def->numa));
return -1;
}
if (memAccess == VIR_DOMAIN_MEMORY_ACCESS_DEFAULT)
memAccess = virDomainNumaGetNodeMemoryAccessMode(def->numa, mem->targetNode);
if (discard == VIR_TRISTATE_BOOL_ABSENT)
discard = virDomainNumaGetNodeDiscard(def->numa, mem->targetNode);
}
if (memAccess == VIR_DOMAIN_MEMORY_ACCESS_DEFAULT)
memAccess = def->mem.access;
if (discard == VIR_TRISTATE_BOOL_ABSENT)
discard = def->mem.discard;
if (def->mem.allocation == VIR_DOMAIN_MEMORY_ALLOCATION_IMMEDIATE)
prealloc = true;
if (virDomainNumatuneGetMode(def->numa, mem->targetNode, &mode) < 0 &&
virDomainNumatuneGetMode(def->numa, -1, &mode) < 0)
mode = VIR_DOMAIN_NUMATUNE_MEM_STRICT;
if (pagesize == 0) {
virDomainHugePagePtr master_hugepage = NULL;
virDomainHugePagePtr hugepage = NULL;
bool thisHugepage = false;
/* Find the huge page size we want to use */
for (i = 0; i < def->mem.nhugepages; i++) {
hugepage = &def->mem.hugepages[i];
if (!hugepage->nodemask) {
master_hugepage = hugepage;
continue;
}
/* just find the master hugepage in case we don't use NUMA */
if (mem->targetNode < 0)
continue;
if (virBitmapGetBit(hugepage->nodemask, mem->targetNode,
&thisHugepage) < 0) {
/* Ignore this error. It's not an error after all. Well,
* the nodemask for this can contain lower NUMA
* nodes than we are querying in here. */
continue;
}
if (thisHugepage) {
/* Hooray, we've found the page size */
needHugepage = true;
break;
}
}
if (i == def->mem.nhugepages) {
/* We have not found specific huge page to be used with this
* NUMA node. Use the generic setting then ( without any
* @nodemask) if possible. */
hugepage = master_hugepage;
}
if (hugepage) {
pagesize = hugepage->size;
useHugepage = true;
}
}
if (pagesize == system_page_size) {
/* However, if user specified to use "huge" page
* of regular system page size, it's as if they
* hasn't specified any huge pages at all. */
pagesize = 0;
needHugepage = false;
useHugepage = false;
} else if (useHugepage && pagesize == 0) {
if (qemuBuildMemoryGetDefaultPagesize(cfg, &pagesize) < 0)
return -1;
}
props = virJSONValueNewObject();
if (def->mem.source == VIR_DOMAIN_MEMORY_SOURCE_MEMFD) {
backendType = "memory-backend-memfd";
if (useHugepage) {
if (virJSONValueObjectAdd(props, "b:hugetlb", useHugepage, NULL) < 0 ||
virJSONValueObjectAdd(props, "U:hugetlbsize", pagesize << 10, NULL) < 0) {
return -1;
}
prealloc = true;
}
if (qemuBuildMemoryBackendPropsShare(props, memAccess) < 0)
return -1;
if (systemMemory)
disableCanonicalPath = true;
} else if (useHugepage || mem->nvdimmPath || memAccess ||
def->mem.source == VIR_DOMAIN_MEMORY_SOURCE_FILE) {
if (mem->nvdimmPath) {
memPath = g_strdup(mem->nvdimmPath);
/* If the NVDIMM is a real device then there's nothing to prealloc.
* If anything, we would be only wearing off the device.
* Similarly, virtio-pmem-pci doesn't need prealloc either. */
if (!mem->nvdimmPmem && mem->model != VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM)
prealloc = true;
} else if (useHugepage) {
if (qemuGetDomainHupageMemPath(priv->driver, def, pagesize, &memPath) < 0)
return -1;
prealloc = true;
} else {
/* We can have both pagesize and mem source. If that's the case,
* prefer hugepages as those are more specific. */
if (qemuGetMemoryBackingPath(priv->driver, def, mem->info.alias, &memPath) < 0)
return -1;
}
if (virJSONValueObjectAdd(props,
"s:mem-path", memPath,
NULL) < 0)
return -1;
if (!mem->nvdimmPath &&
discard == VIR_TRISTATE_BOOL_YES) {
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_MEMORY_FILE_DISCARD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU doesn't support memory discard"));
return -1;
}
if (virJSONValueObjectAdd(props,
"B:discard-data", true,
NULL) < 0)
return -1;
}
if (qemuBuildMemoryBackendPropsShare(props, memAccess) < 0)
return -1;
if (systemMemory)
disableCanonicalPath = true;
} else {
backendType = "memory-backend-ram";
}
/* This is a terrible hack, but unfortunately there is no better way.
* The replacement for '-m X' argument is not simple '-machine
* memory-backend' and '-object memory-backend-*,size=X' (which was the
* idea). This is because of create_default_memdev() in QEMU sets
* 'x-use-canonical-path-for-ramblock-id' attribute to false and is
* documented in QEMU in qemu-options.hx under 'memory-backend'. Note
* that QEMU consideres 'x-use-canonical-path-for-ramblock-id' stable
* and supported despite the 'x-' prefix.
* See QEMU commit 8db0b20415c129cf5e577a593a4a0372d90b7cc9.
*/
if (disableCanonicalPath &&
virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_X_USE_CANONICAL_PATH_FOR_RAMBLOCK_ID) &&
virJSONValueObjectAdd(props, "b:x-use-canonical-path-for-ramblock-id", false, NULL) < 0)
return -1;
if (!priv->memPrealloc &&
virJSONValueObjectAdd(props, "B:prealloc", prealloc, NULL) < 0)
return -1;
if (virJSONValueObjectAdd(props, "U:size", mem->size * 1024, NULL) < 0)
return -1;
if (mem->alignsize) {
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_MEMORY_FILE_ALIGN)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("nvdimm align property is not available "
"with this QEMU binary"));
return -1;
}
if (virJSONValueObjectAdd(props, "U:align", mem->alignsize * 1024, NULL) < 0)
return -1;
}
if (mem->nvdimmPmem) {
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_MEMORY_FILE_PMEM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("nvdimm pmem property is not available "
"with this QEMU binary"));
return -1;
}
if (virJSONValueObjectAdd(props, "b:pmem", true, NULL) < 0)
return -1;
}
if (mem->sourceNodes) {
nodemask = mem->sourceNodes;
} else {
if (virDomainNumatuneMaybeGetNodeset(def->numa, priv->autoNodeset,
&nodemask, mem->targetNode) < 0)
return -1;
}
if (nodemask) {
if (!virNumaNodesetIsAvailable(nodemask))
return -1;
if (virJSONValueObjectAdd(props,
"m:host-nodes", nodemask,
"S:policy", qemuNumaPolicyTypeToString(mode),
NULL) < 0)
return -1;
}
/* If none of the following is requested... */
if (!needHugepage && !mem->sourceNodes && !nodeSpecified &&
!mem->nvdimmPath &&
memAccess == VIR_DOMAIN_MEMORY_ACCESS_DEFAULT &&
def->mem.source != VIR_DOMAIN_MEMORY_SOURCE_FILE &&
def->mem.source != VIR_DOMAIN_MEMORY_SOURCE_MEMFD &&
!force) {
/* report back that using the new backend is not necessary
* to achieve the desired configuration */
rc = 1;
} else {
/* otherwise check the required capability */
if (STREQ(backendType, "memory-backend-file") &&
!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_MEMORY_FILE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this qemu doesn't support the "
"memory-backend-file object"));
return -1;
} else if (STREQ(backendType, "memory-backend-ram") &&
!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_MEMORY_RAM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this qemu doesn't support the "
"memory-backend-ram object"));
return -1;
} else if (STREQ(backendType, "memory-backend-memfd") &&
!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_MEMORY_MEMFD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this qemu doesn't support the "
"memory-backend-memfd object"));
return -1;
}
rc = 0;
}
if (virJSONValueObjectPrependString(props, "id", alias) < 0 ||
virJSONValueObjectPrependString(props, "qom-type", backendType) < 0)
return -1;
*backendProps = g_steal_pointer(&props);
return rc;
}
static int
qemuBuildMemoryCellBackendStr(virDomainDefPtr def,
virQEMUDriverConfigPtr cfg,
size_t cell,
qemuDomainObjPrivatePtr priv,
virBufferPtr buf)
{
g_autoptr(virJSONValue) props = NULL;
g_autofree char *alias = NULL;
int rc;
virDomainMemoryDef mem = { 0 };
unsigned long long memsize = virDomainNumaGetNodeMemorySize(def->numa,
cell);
alias = g_strdup_printf("ram-node%zu", cell);
mem.size = memsize;
mem.targetNode = cell;
mem.info.alias = alias;
if ((rc = qemuBuildMemoryBackendProps(&props, alias, cfg,
priv, def, &mem, false, false)) < 0)
return -1;
if (qemuBuildObjectCommandlineFromJSON(buf, props, priv->qemuCaps) < 0)
return -1;
return rc;
}
static int
qemuBuildMemoryDimmBackendStr(virBufferPtr buf,
virDomainMemoryDefPtr mem,
virDomainDefPtr def,
virQEMUDriverConfigPtr cfg,
qemuDomainObjPrivatePtr priv)
{
g_autoptr(virJSONValue) props = NULL;
g_autofree char *alias = NULL;
if (!mem->info.alias) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("memory device alias is not assigned"));
return -1;
}
alias = g_strdup_printf("mem%s", mem->info.alias);
if (qemuBuildMemoryBackendProps(&props, alias, cfg,
priv, def, mem, true, false) < 0)
return -1;
if (qemuBuildObjectCommandlineFromJSON(buf, props, priv->qemuCaps) < 0)
return -1;
return 0;
}
char *
qemuBuildMemoryDeviceStr(const virDomainDef *def,
virDomainMemoryDefPtr mem,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
const char *device = NULL;
if (!mem->info.alias) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing alias for memory device"));
return NULL;
}
switch (mem->model) {
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
device = "pc-dimm";
break;
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
device = "nvdimm";
break;
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM:
device = "virtio-pmem-pci";
break;
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
default:
virReportEnumRangeError(virDomainMemoryModel, mem->model);
return NULL;
break;
}
virBufferAsprintf(&buf, "%s,", device);
if (mem->targetNode >= 0)
virBufferAsprintf(&buf, "node=%d,", mem->targetNode);
if (mem->labelsize)
virBufferAsprintf(&buf, "label-size=%llu,", mem->labelsize * 1024);
if (mem->uuid) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(mem->uuid, uuidstr);
virBufferAsprintf(&buf, "uuid=%s,", uuidstr);
}
if (mem->readonly) {
virBufferAddLit(&buf, "unarmed=on,");
}
virBufferAsprintf(&buf, "memdev=mem%s,id=%s",
mem->info.alias, mem->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &mem->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static char *
qemuBuildLegacyNicStr(virDomainNetDefPtr net)
{
char *str;
char macaddr[VIR_MAC_STRING_BUFLEN];
const char *netmodel = virDomainNetGetModelString(net);
str = g_strdup_printf("nic,macaddr=%s,netdev=host%s%s%s%s%s",
virMacAddrFormat(&net->mac, macaddr),
net->info.alias,
netmodel ? ",model=" : "",
NULLSTR_EMPTY(netmodel),
(net->info.alias ? ",id=" : ""),
NULLSTR_EMPTY(net->info.alias));
return str;
}
char *
qemuBuildNicDevStr(virDomainDefPtr def,
virDomainNetDefPtr net,
unsigned int bootindex,
size_t vhostfdSize,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
bool usingVirtio = false;
char macaddr[VIR_MAC_STRING_BUFLEN];
if (virDomainNetIsVirtioModel(net)) {
if (qemuBuildVirtioDevStr(&buf, "virtio-net", qemuCaps,
VIR_DOMAIN_DEVICE_NET, net) < 0) {
return NULL;
}
usingVirtio = true;
} else {
virBufferAddStr(&buf, virDomainNetGetModelString(net));
}
if (usingVirtio) {
if (net->driver.virtio.txmode &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_TX_ALG)) {
virBufferAddLit(&buf, ",tx=");
switch (net->driver.virtio.txmode) {
case VIR_DOMAIN_NET_VIRTIO_TX_MODE_IOTHREAD:
virBufferAddLit(&buf, "bh");
break;
case VIR_DOMAIN_NET_VIRTIO_TX_MODE_TIMER:
virBufferAddLit(&buf, "timer");
break;
case VIR_DOMAIN_NET_VIRTIO_TX_MODE_DEFAULT:
break;
case VIR_DOMAIN_NET_VIRTIO_TX_MODE_LAST:
default:
/* this should never happen, if it does, we need
* to add another case to this switch.
*/
virReportEnumRangeError(virDomainNetVirtioTxModeType,
net->driver.virtio.txmode);
return NULL;
}
}
qemuBuildIoEventFdStr(&buf, net->driver.virtio.ioeventfd, qemuCaps);
if (net->driver.virtio.event_idx &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_NET_EVENT_IDX)) {
virBufferAsprintf(&buf, ",event_idx=%s",
virTristateSwitchTypeToString(net->driver.virtio.event_idx));
}
if (net->driver.virtio.host.csum) {
virBufferAsprintf(&buf, ",csum=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.csum));
}
if (net->driver.virtio.host.gso) {
virBufferAsprintf(&buf, ",gso=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.gso));
}
if (net->driver.virtio.host.tso4) {
virBufferAsprintf(&buf, ",host_tso4=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.tso4));
}
if (net->driver.virtio.host.tso6) {
virBufferAsprintf(&buf, ",host_tso6=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.tso6));
}
if (net->driver.virtio.host.ecn) {
virBufferAsprintf(&buf, ",host_ecn=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.ecn));
}
if (net->driver.virtio.host.ufo) {
virBufferAsprintf(&buf, ",host_ufo=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.ufo));
}
if (net->driver.virtio.host.mrg_rxbuf) {
virBufferAsprintf(&buf, ",mrg_rxbuf=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.mrg_rxbuf));
}
if (net->driver.virtio.guest.csum) {
virBufferAsprintf(&buf, ",guest_csum=%s",
virTristateSwitchTypeToString(net->driver.virtio.guest.csum));
}
if (net->driver.virtio.guest.tso4) {
virBufferAsprintf(&buf, ",guest_tso4=%s",
virTristateSwitchTypeToString(net->driver.virtio.guest.tso4));
}
if (net->driver.virtio.guest.tso6) {
virBufferAsprintf(&buf, ",guest_tso6=%s",
virTristateSwitchTypeToString(net->driver.virtio.guest.tso6));
}
if (net->driver.virtio.guest.ecn) {
virBufferAsprintf(&buf, ",guest_ecn=%s",
virTristateSwitchTypeToString(net->driver.virtio.guest.ecn));
}
if (net->driver.virtio.guest.ufo) {
virBufferAsprintf(&buf, ",guest_ufo=%s",
virTristateSwitchTypeToString(net->driver.virtio.guest.ufo));
}
if (vhostfdSize > 1) {
if (net->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
/* ccw provides a one to one relation of fds to queues and
* does not support the vectors option
*/
virBufferAddLit(&buf, ",mq=on");
} else {
/* As advised at https://www.linux-kvm.org/page/Multiqueue
* we should add vectors=2*N+2 where N is the vhostfdSize
*/
virBufferAsprintf(&buf, ",mq=on,vectors=%zu", 2 * vhostfdSize + 2);
}
}
if (net->driver.virtio.rx_queue_size)
virBufferAsprintf(&buf, ",rx_queue_size=%u", net->driver.virtio.rx_queue_size);
if (net->driver.virtio.tx_queue_size)
virBufferAsprintf(&buf, ",tx_queue_size=%u", net->driver.virtio.tx_queue_size);
if (net->mtu)
virBufferAsprintf(&buf, ",host_mtu=%u", net->mtu);
if (net->teaming && net->teaming->type == VIR_DOMAIN_NET_TEAMING_TYPE_PERSISTENT)
virBufferAddLit(&buf, ",failover=on");
}
virBufferAsprintf(&buf, ",netdev=host%s", net->info.alias);
virBufferAsprintf(&buf, ",id=%s", net->info.alias);
virBufferAsprintf(&buf, ",mac=%s",
virMacAddrFormat(&net->mac, macaddr));
if (qemuBuildDeviceAddressStr(&buf, def, &net->info, qemuCaps) < 0)
return NULL;
if (qemuBuildRomStr(&buf, &net->info) < 0)
return NULL;
if (bootindex)
virBufferAsprintf(&buf, ",bootindex=%u", bootindex);
if (usingVirtio)
qemuBuildVirtioOptionsStr(&buf, net->virtio);
return virBufferContentAndReset(&buf);
}
virJSONValuePtr
qemuBuildHostNetStr(virDomainNetDefPtr net,
char **tapfd,
size_t tapfdSize,
char **vhostfd,
size_t vhostfdSize,
const char *slirpfd,
const char *vdpadev)
{
bool is_tap = false;
virDomainNetType netType = virDomainNetGetActualType(net);
size_t i;
g_autoptr(virJSONValue) netprops = NULL;
if (net->script && netType != VIR_DOMAIN_NET_TYPE_ETHERNET) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("scripts are not supported on interfaces of type %s"),
virDomainNetTypeToString(netType));
return NULL;
}
switch (netType) {
/*
* If type='bridge', and we're running as privileged user
* or -netdev bridge is not supported then it will fall
* through, -net tap,fd
*/
case VIR_DOMAIN_NET_TYPE_BRIDGE:
case VIR_DOMAIN_NET_TYPE_NETWORK:
case VIR_DOMAIN_NET_TYPE_DIRECT:
case VIR_DOMAIN_NET_TYPE_ETHERNET:
if (virJSONValueObjectCreate(&netprops, "s:type", "tap", NULL) < 0)
return NULL;
/* for one tapfd 'fd=' shall be used,
* for more than one 'fds=' is the right choice */
if (tapfdSize == 1) {
if (virJSONValueObjectAdd(netprops, "s:fd", tapfd[0], NULL) < 0)
return NULL;
} else {
g_auto(virBuffer) fdsbuf = VIR_BUFFER_INITIALIZER;
for (i = 0; i < tapfdSize; i++)
virBufferAsprintf(&fdsbuf, "%s:", tapfd[i]);
virBufferTrim(&fdsbuf, ":");
if (virJSONValueObjectAdd(netprops,
"s:fds", virBufferCurrentContent(&fdsbuf),
NULL) < 0)
return NULL;
}
is_tap = true;
break;
case VIR_DOMAIN_NET_TYPE_CLIENT:
if (virJSONValueObjectCreate(&netprops, "s:type", "socket", NULL) < 0 ||
virJSONValueObjectAppendStringPrintf(netprops, "connect", "%s:%d",
net->data.socket.address,
net->data.socket.port) < 0)
return NULL;
break;
case VIR_DOMAIN_NET_TYPE_SERVER:
if (virJSONValueObjectCreate(&netprops, "s:type", "socket", NULL) < 0 ||
virJSONValueObjectAppendStringPrintf(netprops, "listen", "%s:%d",
NULLSTR_EMPTY(net->data.socket.address),
net->data.socket.port) < 0)
return NULL;
break;
case VIR_DOMAIN_NET_TYPE_MCAST:
if (virJSONValueObjectCreate(&netprops, "s:type", "socket", NULL) < 0 ||
virJSONValueObjectAppendStringPrintf(netprops, "mcast", "%s:%d",
net->data.socket.address,
net->data.socket.port) < 0)
return NULL;
break;
case VIR_DOMAIN_NET_TYPE_UDP:
if (virJSONValueObjectCreate(&netprops, "s:type", "socket", NULL) < 0 ||
virJSONValueObjectAppendStringPrintf(netprops, "udp", "%s:%d",
net->data.socket.address,
net->data.socket.port) < 0 ||
virJSONValueObjectAppendStringPrintf(netprops, "localaddr", "%s:%d",
net->data.socket.localaddr,
net->data.socket.localport) < 0)
return NULL;
break;
case VIR_DOMAIN_NET_TYPE_USER:
if (slirpfd) {
if (virJSONValueObjectCreate(&netprops, "s:type", "socket", NULL) < 0 ||
virJSONValueObjectAppendString(netprops, "fd", slirpfd) < 0)
return NULL;
} else {
if (virJSONValueObjectCreate(&netprops, "s:type", "user", NULL) < 0)
return NULL;
for (i = 0; i < net->guestIP.nips; i++) {
const virNetDevIPAddr *ip = net->guestIP.ips[i];
g_autofree char *addr = NULL;
if (!(addr = virSocketAddrFormat(&ip->address)))
return NULL;
if (VIR_SOCKET_ADDR_IS_FAMILY(&ip->address, AF_INET)) {
g_autofree char *ipv4netaddr = NULL;
if (ip->prefix)
ipv4netaddr = g_strdup_printf("%s/%u", addr, ip->prefix);
else
ipv4netaddr = g_strdup(addr);
if (virJSONValueObjectAppendString(netprops, "net", ipv4netaddr) < 0)
return NULL;
} else if (VIR_SOCKET_ADDR_IS_FAMILY(&ip->address, AF_INET6)) {
if (virJSONValueObjectAppendString(netprops, "ipv6-prefix", addr) < 0)
return NULL;
if (ip->prefix &&
virJSONValueObjectAppendNumberUlong(netprops, "ipv6-prefixlen",
ip->prefix) < 0)
return NULL;
}
}
}
break;
case VIR_DOMAIN_NET_TYPE_INTERNAL:
if (virJSONValueObjectCreate(&netprops, "s:type", "user", NULL) < 0)
return NULL;
break;
case VIR_DOMAIN_NET_TYPE_VHOSTUSER:
if (virJSONValueObjectCreate(&netprops, "s:type", "vhost-user", NULL) < 0 ||
virJSONValueObjectAppendStringPrintf(netprops, "chardev", "char%s", net->info.alias) < 0)
return NULL;
if (net->driver.virtio.queues > 1 &&
virJSONValueObjectAppendNumberUlong(netprops, "queues", net->driver.virtio.queues) < 0)
return NULL;
break;
case VIR_DOMAIN_NET_TYPE_VDPA:
/* Caller will pass the fd to qemu with add-fd */
if (virJSONValueObjectCreate(&netprops, "s:type", "vhost-vdpa", NULL) < 0 ||
virJSONValueObjectAppendString(netprops, "vhostdev", vdpadev) < 0)
return NULL;
break;
case VIR_DOMAIN_NET_TYPE_HOSTDEV:
/* Should have been handled earlier via PCI/USB hotplug code. */
case VIR_DOMAIN_NET_TYPE_LAST:
break;
}
if (virJSONValueObjectAppendStringPrintf(netprops, "id", "host%s", net->info.alias) < 0)
return NULL;
if (is_tap) {
if (vhostfdSize) {
if (virJSONValueObjectAppendBoolean(netprops, "vhost", true) < 0)
return NULL;
if (vhostfdSize == 1) {
if (virJSONValueObjectAdd(netprops, "s:vhostfd", vhostfd[0], NULL) < 0)
return NULL;
} else {
g_auto(virBuffer) fdsbuf = VIR_BUFFER_INITIALIZER;
for (i = 0; i < vhostfdSize; i++)
virBufferAsprintf(&fdsbuf, "%s:", vhostfd[i]);
virBufferTrim(&fdsbuf, ":");
if (virJSONValueObjectAdd(netprops,
"s:vhostfds", virBufferCurrentContent(&fdsbuf),
NULL) < 0)
return NULL;
}
}
if (net->tune.sndbuf_specified &&
virJSONValueObjectAppendNumberUlong(netprops, "sndbuf", net->tune.sndbuf) < 0)
return NULL;
}
return g_steal_pointer(&netprops);
}
char *
qemuBuildWatchdogDevStr(const virDomainDef *def,
virDomainWatchdogDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
const char *model = virDomainWatchdogModelTypeToString(dev->model);
if (!model) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing watchdog model"));
return NULL;
}
virBufferAsprintf(&buf, "%s,id=%s", model, dev->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static int
qemuBuildWatchdogCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virDomainWatchdogDefPtr watchdog = def->watchdog;
g_autofree char *optstr = NULL;
const char *action;
int actualAction;
if (!def->watchdog)
return 0;
if (qemuCommandAddExtDevice(cmd, &def->watchdog->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
optstr = qemuBuildWatchdogDevStr(def, watchdog, qemuCaps);
if (!optstr)
return -1;
virCommandAddArg(cmd, optstr);
/* qemu doesn't have a 'dump' action; we tell qemu to 'pause', then
libvirt listens for the watchdog event, and we perform the dump
ourselves. so convert 'dump' to 'pause' for the qemu cli */
actualAction = watchdog->action;
if (watchdog->action == VIR_DOMAIN_WATCHDOG_ACTION_DUMP)
actualAction = VIR_DOMAIN_WATCHDOG_ACTION_PAUSE;
action = virDomainWatchdogActionTypeToString(actualAction);
if (!action) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("invalid watchdog action"));
return -1;
}
virCommandAddArgList(cmd, "-watchdog-action", action, NULL);
return 0;
}
static int
qemuBuildMemballoonCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
if (!virDomainDefHasMemballoon(def))
return 0;
if (qemuBuildVirtioDevStr(&buf, "virtio-balloon", qemuCaps,
VIR_DOMAIN_DEVICE_MEMBALLOON,
def->memballoon) < 0) {
return -1;
}
virBufferAsprintf(&buf, ",id=%s", def->memballoon->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &def->memballoon->info, qemuCaps) < 0)
return -1;
if (def->memballoon->autodeflate != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(&buf, ",deflate-on-oom=%s",
virTristateSwitchTypeToString(def->memballoon->autodeflate));
}
if (def->memballoon->free_page_reporting != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(&buf, ",free-page-reporting=%s",
virTristateSwitchTypeToString(def->memballoon->free_page_reporting));
}
qemuBuildVirtioOptionsStr(&buf, def->memballoon->virtio);
if (qemuCommandAddExtDevice(cmd, &def->memballoon->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static char *
qemuBuildNVRAMDevStr(virDomainNVRAMDefPtr dev)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virBufferAsprintf(&buf, "spapr-nvram.reg=0x%llx",
dev->info.addr.spaprvio.reg);
return virBufferContentAndReset(&buf);
}
static int
qemuBuildNVRAMCommandLine(virCommandPtr cmd,
const virDomainDef *def)
{
g_autofree char *optstr = NULL;
if (!def->nvram)
return 0;
virCommandAddArg(cmd, "-global");
optstr = qemuBuildNVRAMDevStr(def->nvram);
if (!optstr)
return -1;
virCommandAddArg(cmd, optstr);
return 0;
}
static char *
qemuBuildVirtioInputDevStr(const virDomainDef *def,
virDomainInputDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
switch ((virDomainInputType)dev->type) {
case VIR_DOMAIN_INPUT_TYPE_MOUSE:
if (qemuBuildVirtioDevStr(&buf, "virtio-mouse", qemuCaps,
VIR_DOMAIN_DEVICE_INPUT, dev) < 0) {
return NULL;
}
break;
case VIR_DOMAIN_INPUT_TYPE_TABLET:
if (qemuBuildVirtioDevStr(&buf, "virtio-tablet", qemuCaps,
VIR_DOMAIN_DEVICE_INPUT, dev) < 0) {
return NULL;
}
break;
case VIR_DOMAIN_INPUT_TYPE_KBD:
if (qemuBuildVirtioDevStr(&buf, "virtio-keyboard", qemuCaps,
VIR_DOMAIN_DEVICE_INPUT, dev) < 0) {
return NULL;
}
break;
case VIR_DOMAIN_INPUT_TYPE_PASSTHROUGH:
if (qemuBuildVirtioDevStr(&buf, "virtio-input-host", qemuCaps,
VIR_DOMAIN_DEVICE_INPUT, dev) < 0) {
return NULL;
}
break;
case VIR_DOMAIN_INPUT_TYPE_LAST:
default:
virReportEnumRangeError(virDomainInputType, dev->type);
return NULL;
}
virBufferAsprintf(&buf, ",id=%s", dev->info.alias);
if (dev->type == VIR_DOMAIN_INPUT_TYPE_PASSTHROUGH) {
virBufferAddLit(&buf, ",evdev=");
virQEMUBuildBufferEscapeComma(&buf, dev->source.evdev);
}
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
return NULL;
qemuBuildVirtioOptionsStr(&buf, dev->virtio);
return virBufferContentAndReset(&buf);
}
static char *
qemuBuildUSBInputDevStr(const virDomainDef *def,
virDomainInputDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
switch (dev->type) {
case VIR_DOMAIN_INPUT_TYPE_MOUSE:
virBufferAsprintf(&buf, "usb-mouse,id=%s", dev->info.alias);
break;
case VIR_DOMAIN_INPUT_TYPE_TABLET:
virBufferAsprintf(&buf, "usb-tablet,id=%s", dev->info.alias);
break;
case VIR_DOMAIN_INPUT_TYPE_KBD:
virBufferAsprintf(&buf, "usb-kbd,id=%s", dev->info.alias);
break;
}
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
int
qemuBuildInputDevStr(char **devstr,
const virDomainDef *def,
virDomainInputDefPtr input,
virQEMUCapsPtr qemuCaps)
{
switch (input->bus) {
case VIR_DOMAIN_INPUT_BUS_USB:
if (!(*devstr = qemuBuildUSBInputDevStr(def, input, qemuCaps)))
return -1;
break;
case VIR_DOMAIN_INPUT_BUS_VIRTIO:
if (!(*devstr = qemuBuildVirtioInputDevStr(def, input, qemuCaps)))
return -1;
break;
}
return 0;
}
static int
qemuBuildInputCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->ninputs; i++) {
virDomainInputDefPtr input = def->inputs[i];
g_autofree char *devstr = NULL;
if (qemuCommandAddExtDevice(cmd, &input->info) < 0)
return -1;
if (qemuBuildInputDevStr(&devstr, def, input, qemuCaps) < 0)
return -1;
if (devstr) {
virCommandAddArg(cmd, "-device");
virCommandAddArg(cmd, devstr);
}
}
return 0;
}
static char *
qemuGetAudioIDString(const virDomainDef *def, int id)
{
virDomainAudioDefPtr audio = virDomainDefFindAudioByID(def, id);
if (!audio) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unable to find audio backend for sound device"));
return NULL;
}
return g_strdup_printf("audio%d", audio->id);
}
static char *
qemuBuildSoundDevStr(const virDomainDef *def,
virDomainSoundDefPtr sound,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
const char *model = NULL;
/* Hack for devices with different names in QEMU and libvirt */
switch ((virDomainSoundModel) sound->model) {
case VIR_DOMAIN_SOUND_MODEL_ES1370:
model = "ES1370";
break;
case VIR_DOMAIN_SOUND_MODEL_AC97:
model = "AC97";
break;
case VIR_DOMAIN_SOUND_MODEL_ICH6:
model = "intel-hda";
break;
case VIR_DOMAIN_SOUND_MODEL_USB:
model = "usb-audio";
break;
case VIR_DOMAIN_SOUND_MODEL_ICH9:
model = "ich9-intel-hda";
break;
case VIR_DOMAIN_SOUND_MODEL_SB16:
model = "sb16";
break;
case VIR_DOMAIN_SOUND_MODEL_PCSPK: /* pc-speaker is handled separately */
case VIR_DOMAIN_SOUND_MODEL_ICH7:
case VIR_DOMAIN_SOUND_MODEL_LAST:
return NULL;
}
virBufferAsprintf(&buf, "%s,id=%s", model, sound->info.alias);
if (!virDomainSoundModelSupportsCodecs(sound) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_AUDIODEV)) {
g_autofree char *audioid = qemuGetAudioIDString(def, sound->audioId);
if (!audioid)
return NULL;
virBufferAsprintf(&buf, ",audiodev=%s", audioid);
}
if (qemuBuildDeviceAddressStr(&buf, def, &sound->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static char *
qemuBuildSoundCodecStr(const virDomainDef *def,
virDomainSoundDefPtr sound,
virDomainSoundCodecDefPtr codec,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
const char *stype;
int type;
type = codec->type;
stype = qemuSoundCodecTypeToString(type);
virBufferAsprintf(&buf, "%s,id=%s-codec%d,bus=%s.0,cad=%d",
stype, sound->info.alias, codec->cad, sound->info.alias, codec->cad);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_AUDIODEV)) {
g_autofree char *audioid = qemuGetAudioIDString(def, sound->audioId);
if (!audioid)
return NULL;
virBufferAsprintf(&buf, ",audiodev=%s", audioid);
}
return virBufferContentAndReset(&buf);
}
static int
qemuBuildSoundCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i, j;
for (i = 0; i < def->nsounds; i++) {
virDomainSoundDefPtr sound = def->sounds[i];
g_autofree char *str = NULL;
/* Sadly pcspk device doesn't use -device syntax. Fortunately
* we don't need to set any PCI address on it, so we don't
* mind too much */
if (sound->model == VIR_DOMAIN_SOUND_MODEL_PCSPK) {
virCommandAddArgList(cmd, "-soundhw", "pcspk", NULL);
} else {
if (qemuCommandAddExtDevice(cmd, &sound->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
if (!(str = qemuBuildSoundDevStr(def, sound, qemuCaps)))
return -1;
virCommandAddArg(cmd, str);
if (virDomainSoundModelSupportsCodecs(sound)) {
for (j = 0; j < sound->ncodecs; j++) {
g_autofree char *codecstr = NULL;
virCommandAddArg(cmd, "-device");
if (!(codecstr =
qemuBuildSoundCodecStr(def, sound,
sound->codecs[j], qemuCaps))) {
return -1;
}
virCommandAddArg(cmd, codecstr);
}
if (j == 0) {
g_autofree char *codecstr = NULL;
virDomainSoundCodecDef codec = {
VIR_DOMAIN_SOUND_CODEC_TYPE_DUPLEX,
0
};
virCommandAddArg(cmd, "-device");
if (!(codecstr =
qemuBuildSoundCodecStr(def, sound,
&codec, qemuCaps))) {
return -1;
}
virCommandAddArg(cmd, codecstr);
}
}
}
}
return 0;
}
static char *
qemuBuildDeviceVideoStr(const virDomainDef *def,
virDomainVideoDefPtr video,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
const char *model = NULL;
/* We try to chose the best model for primary video device by preferring
* model with VGA compatibility mode. For some video devices on some
* architectures there might not be such model so fallback to one
* without VGA compatibility mode. */
if (video->backend == VIR_DOMAIN_VIDEO_BACKEND_TYPE_VHOSTUSER) {
if (video->primary && qemuDomainSupportsVideoVga(video, qemuCaps))
model = "vhost-user-vga";
else
model = "vhost-user-gpu";
} else {
if (video->primary && qemuDomainSupportsVideoVga(video, qemuCaps))
model = qemuDeviceVideoTypeToString(video->type);
else
model = qemuDeviceVideoSecondaryTypeToString(video->type);
}
if (!model || STREQ(model, "")) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("invalid model for video type '%s'"),
virDomainVideoTypeToString(video->type));
return NULL;
}
if (STREQ(model, "virtio-gpu") || STREQ(model, "vhost-user-gpu")) {
if (qemuBuildVirtioDevStr(&buf, model, qemuCaps,
VIR_DOMAIN_DEVICE_VIDEO, video) < 0) {
return NULL;
}
} else {
virBufferAsprintf(&buf, "%s", model);
}
virBufferAsprintf(&buf, ",id=%s", video->info.alias);
if (video->backend != VIR_DOMAIN_VIDEO_BACKEND_TYPE_VHOSTUSER &&
video->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO) {
if (video->accel &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_GPU_VIRGL) &&
(video->accel->accel3d == VIR_TRISTATE_SWITCH_ON ||
video->accel->accel3d == VIR_TRISTATE_SWITCH_OFF)) {
virBufferAsprintf(&buf, ",virgl=%s",
virTristateSwitchTypeToString(video->accel->accel3d));
}
}
if (video->type == VIR_DOMAIN_VIDEO_TYPE_QXL) {
if (video->ram) {
/* QEMU accepts bytes for ram_size. */
virBufferAsprintf(&buf, ",ram_size=%u", video->ram * 1024);
}
if (video->vram) {
/* QEMU accepts bytes for vram_size. */
virBufferAsprintf(&buf, ",vram_size=%u", video->vram * 1024);
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_VRAM64)) {
/* QEMU accepts mebibytes for vram64_size_mb. */
virBufferAsprintf(&buf, ",vram64_size_mb=%u", video->vram64 / 1024);
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_VGAMEM)) {
/* QEMU accepts mebibytes for vgamem_mb. */
virBufferAsprintf(&buf, ",vgamem_mb=%u", video->vgamem / 1024);
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_MAX_OUTPUTS)) {
if (video->heads)
virBufferAsprintf(&buf, ",max_outputs=%u", video->heads);
}
} else if (video->backend == VIR_DOMAIN_VIDEO_BACKEND_TYPE_VHOSTUSER) {
g_autofree char *alias = qemuDomainGetVhostUserChrAlias(video->info.alias);
if (video->heads)
virBufferAsprintf(&buf, ",max_outputs=%u", video->heads);
virBufferAsprintf(&buf, ",chardev=%s", alias);
} else if (video->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_GPU_MAX_OUTPUTS)) {
if (video->heads)
virBufferAsprintf(&buf, ",max_outputs=%u", video->heads);
}
} else if ((video->type == VIR_DOMAIN_VIDEO_TYPE_VGA &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VGA_VGAMEM)) ||
(video->type == VIR_DOMAIN_VIDEO_TYPE_VMVGA &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VMWARE_SVGA_VGAMEM))) {
if (video->vram)
virBufferAsprintf(&buf, ",vgamem_mb=%u", video->vram / 1024);
} else if (video->type == VIR_DOMAIN_VIDEO_TYPE_BOCHS) {
if (video->vram)
virBufferAsprintf(&buf, ",vgamem=%uk", video->vram);
}
if (video->res && video->res->x && video->res->y) {
/* QEMU accepts resolution xres and yres. */
virBufferAsprintf(&buf, ",xres=%u,yres=%u", video->res->x, video->res->y);
}
if (qemuBuildDeviceAddressStr(&buf, def, &video->info, qemuCaps) < 0)
return NULL;
qemuBuildVirtioOptionsStr(&buf, video->virtio);
return virBufferContentAndReset(&buf);
}
static int
qemuBuildVgaVideoCommand(virCommandPtr cmd,
virDomainVideoDefPtr video,
virQEMUCapsPtr qemuCaps)
{
const char *dev;
const char *vgastr = qemuVideoTypeToString(video->type);
if (!vgastr || STREQ(vgastr, "")) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("invalid model for video type '%s'"),
virDomainVideoTypeToString(video->type));
return -1;
}
virCommandAddArgList(cmd, "-vga", vgastr, NULL);
/* If we cannot use --device option to specify the video device
* in QEMU we will fallback to the old --vga option. To get the
* correct device name for the --vga option the 'qemuVideo' is
* used, but to set some device attributes we need to use the
* --global option and for that we need to specify the device
* name the same as for --device option and for that we need to
* use 'qemuDeviceVideo'.
*
* See 'Graphics Devices' section in docs/qdev-device-use.txt in
* QEMU repository.
*/
dev = qemuDeviceVideoTypeToString(video->type);
if (video->type == VIR_DOMAIN_VIDEO_TYPE_QXL &&
(video->vram || video->ram)) {
unsigned int ram = video->ram;
unsigned int vram = video->vram;
unsigned int vram64 = video->vram64;
unsigned int vgamem = video->vgamem;
unsigned int heads = video->heads;
if (ram) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.ram_size=%u",
dev, ram * 1024);
}
if (vram) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.vram_size=%u",
dev, vram * 1024);
}
if (vram64 &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_VRAM64)) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.vram64_size_mb=%u",
dev, vram64 / 1024);
}
if (vgamem &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_VGAMEM)) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.vgamem_mb=%u",
dev, vgamem / 1024);
}
if (heads &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_MAX_OUTPUTS)) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.max_outputs=%u",
dev, heads);
}
}
if (video->vram &&
((video->type == VIR_DOMAIN_VIDEO_TYPE_VGA &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VGA_VGAMEM)) ||
(video->type == VIR_DOMAIN_VIDEO_TYPE_VMVGA &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VMWARE_SVGA_VGAMEM)))) {
unsigned int vram = video->vram;
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.vgamem_mb=%u",
dev, vram / 1024);
}
return 0;
}
static char *
qemuBuildVhostUserChardevStr(const char *alias,
int *fd,
virCommandPtr cmd)
{
g_autofree char *chardev_alias = qemuDomainGetVhostUserChrAlias(alias);
char *chardev = NULL;
if (*fd == -1) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Attempt to pass closed vhostuser FD"));
return NULL;
}
chardev = g_strdup_printf("socket,id=%s,fd=%d", chardev_alias, *fd);
virCommandPassFD(cmd, *fd, VIR_COMMAND_PASS_FD_CLOSE_PARENT);
*fd = -1;
return chardev;
}
static int
qemuBuildVideoCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->nvideos; i++) {
g_autofree char *chardev = NULL;
virDomainVideoDefPtr video = def->videos[i];
if (video->backend == VIR_DOMAIN_VIDEO_BACKEND_TYPE_VHOSTUSER) {
if (!(chardev = qemuBuildVhostUserChardevStr(video->info.alias,
&QEMU_DOMAIN_VIDEO_PRIVATE(video)->vhost_user_fd,
cmd)))
return -1;
virCommandAddArgList(cmd, "-chardev", chardev, NULL);
}
}
for (i = 0; i < def->nvideos; i++) {
g_autofree char *str = NULL;
virDomainVideoDefPtr video = def->videos[i];
if (video->type == VIR_DOMAIN_VIDEO_TYPE_NONE)
continue;
if (video->primary) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIDEO_PRIMARY)) {
if (qemuCommandAddExtDevice(cmd,
&def->videos[i]->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
if (!(str = qemuBuildDeviceVideoStr(def, video, qemuCaps)))
return -1;
virCommandAddArg(cmd, str);
} else {
if (qemuBuildVgaVideoCommand(cmd, video, qemuCaps) < 0)
return -1;
}
} else {
if (qemuCommandAddExtDevice(cmd, &def->videos[i]->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
if (!(str = qemuBuildDeviceVideoStr(def, video, qemuCaps)))
return -1;
virCommandAddArg(cmd, str);
}
}
return 0;
}
char *
qemuBuildPCIHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
unsigned int bootIndex, /* used iff dev->info->bootIndex == 0 */
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virDomainHostdevSubsysPCIPtr pcisrc = &dev->source.subsys.u.pci;
int backend = pcisrc->backend;
virDomainNetTeamingInfoPtr teaming;
/* caller has to assign proper passthrough backend type */
switch ((virDomainHostdevSubsysPCIBackendType)backend) {
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO:
virBufferAddLit(&buf, "vfio-pci");
break;
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_KVM:
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_DEFAULT:
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN:
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("invalid PCI passthrough type '%s'"),
virDomainHostdevSubsysPCIBackendTypeToString(backend));
return NULL;
}
virBufferAddLit(&buf, ",host=");
virBufferAsprintf(&buf,
VIR_PCI_DEVICE_ADDRESS_FMT,
pcisrc->addr.domain,
pcisrc->addr.bus,
pcisrc->addr.slot,
pcisrc->addr.function);
virBufferAsprintf(&buf, ",id=%s", dev->info->alias);
if (dev->info->bootIndex)
bootIndex = dev->info->bootIndex;
if (bootIndex)
virBufferAsprintf(&buf, ",bootindex=%u", bootIndex);
if (qemuBuildDeviceAddressStr(&buf, def, dev->info, qemuCaps) < 0)
return NULL;
if (qemuBuildRomStr(&buf, dev->info) < 0)
return NULL;
if (dev->parentnet)
teaming = dev->parentnet->teaming;
else
teaming = dev->teaming;
if (teaming &&
teaming->type == VIR_DOMAIN_NET_TEAMING_TYPE_TRANSIENT &&
teaming->persistent) {
virBufferAsprintf(&buf, ",failover_pair_id=%s", teaming->persistent);
}
return virBufferContentAndReset(&buf);
}
char *
qemuBuildUSBHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virDomainHostdevSubsysUSBPtr usbsrc = &dev->source.subsys.u.usb;
virBufferAddLit(&buf, "usb-host");
if (!dev->missing) {
if (usbsrc->bus == 0 && usbsrc->device == 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("USB host device is missing bus/device information"));
return NULL;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_HOST_HOSTDEVICE)) {
virBufferAsprintf(&buf, ",hostdevice=/dev/bus/usb/%03d/%03d",
usbsrc->bus, usbsrc->device);
} else {
virBufferAsprintf(&buf, ",hostbus=%d,hostaddr=%d",
usbsrc->bus, usbsrc->device);
}
}
virBufferAsprintf(&buf, ",id=%s", dev->info->alias);
if (dev->info->bootIndex)
virBufferAsprintf(&buf, ",bootindex=%u", dev->info->bootIndex);
if (qemuBuildDeviceAddressStr(&buf, def, dev->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static char *
qemuBuildHubDevStr(const virDomainDef *def,
virDomainHubDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virBufferAddLit(&buf, "usb-hub");
virBufferAsprintf(&buf, ",id=%s", dev->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static int
qemuBuildHubCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->nhubs; i++) {
virDomainHubDefPtr hub = def->hubs[i];
g_autofree char *optstr = NULL;
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildHubDevStr(def, hub, qemuCaps)))
return -1;
virCommandAddArg(cmd, optstr);
}
return 0;
}
static char *
qemuBuildSCSIiSCSIHostdevDrvStr(virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autofree char *netsource = NULL;
g_autoptr(virJSONValue) srcprops = NULL;
virDomainHostdevSubsysSCSIPtr scsisrc = &dev->source.subsys.u.scsi;
virDomainHostdevSubsysSCSIiSCSIPtr iscsisrc = &scsisrc->u.iscsi;
qemuDomainStorageSourcePrivatePtr srcPriv =
QEMU_DOMAIN_STORAGE_SOURCE_PRIVATE(iscsisrc->src);
if (qemuDiskSourceNeedsProps(iscsisrc->src, qemuCaps)) {
if (!(srcprops = qemuDiskSourceGetProps(iscsisrc->src)))
return NULL;
if (!(netsource = virQEMUBuildDriveCommandlineFromJSON(srcprops)))
return NULL;
virBufferAsprintf(&buf, "%s,if=none,format=raw", netsource);
} else {
/* Rather than pull what we think we want - use the network disk code */
if (!(netsource = qemuBuildNetworkDriveStr(iscsisrc->src, srcPriv ?
srcPriv->secinfo : NULL)))
return NULL;
virBufferAddLit(&buf, "file=");
virQEMUBuildBufferEscapeComma(&buf, netsource);
virBufferAddLit(&buf, ",if=none,format=raw");
}
return virBufferContentAndReset(&buf);
}
char *
qemuBuildSCSIVHostHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps,
char *vhostfdName)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virDomainHostdevSubsysSCSIVHostPtr hostsrc = &dev->source.subsys.u.scsi_host;
if (qemuBuildVirtioDevStr(&buf, "vhost-scsi", qemuCaps,
VIR_DOMAIN_DEVICE_HOSTDEV, dev) < 0) {
return NULL;
}
virBufferAsprintf(&buf, ",wwpn=%s,vhostfd=%s,id=%s",
hostsrc->wwpn,
vhostfdName,
dev->info->alias);
if (qemuBuildDeviceAddressStr(&buf, def, dev->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static char *
qemuBuildSCSIHostdevDrvStr(virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autofree char *source = NULL;
g_autofree char *drivealias = NULL;
virDomainHostdevSubsysSCSIPtr scsisrc = &dev->source.subsys.u.scsi;
if (scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI) {
if (!(source = qemuBuildSCSIiSCSIHostdevDrvStr(dev, qemuCaps)))
return NULL;
virBufferAdd(&buf, source, -1);
} else {
virBufferAsprintf(&buf, "file=%s,if=none,format=raw", scsisrc->u.host.src->path);
}
if (!(drivealias = qemuAliasFromHostdev(dev)))
return NULL;
virBufferAsprintf(&buf, ",id=%s", drivealias);
if (dev->readonly)
virBufferAddLit(&buf, ",readonly=on");
return virBufferContentAndReset(&buf);
}
char *
qemuBuildSCSIHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
const char *backendAlias)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
int model = -1;
const char *contAlias;
model = qemuDomainFindSCSIControllerModel(def, dev->info);
if (model < 0)
return NULL;
if (model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC) {
if (dev->info->addr.drive.target != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("target must be 0 for scsi host device "
"if its controller model is 'lsilogic'"));
return NULL;
}
if (dev->info->addr.drive.unit > 7) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("unit must be not more than 7 for scsi host "
"device if its controller model is 'lsilogic'"));
return NULL;
}
}
virBufferAddLit(&buf, "scsi-generic");
if (!(contAlias = virDomainControllerAliasFind(def, VIR_DOMAIN_CONTROLLER_TYPE_SCSI,
dev->info->addr.drive.controller)))
return NULL;
if (model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC) {
virBufferAsprintf(&buf, ",bus=%s.%d,scsi-id=%d",
contAlias,
dev->info->addr.drive.bus,
dev->info->addr.drive.unit);
} else {
virBufferAsprintf(&buf, ",bus=%s.0,channel=%d,scsi-id=%d,lun=%d",
contAlias,
dev->info->addr.drive.bus,
dev->info->addr.drive.target,
dev->info->addr.drive.unit);
}
virBufferAsprintf(&buf, ",drive=%s,id=%s", backendAlias, dev->info->alias);
if (dev->info->bootIndex)
virBufferAsprintf(&buf, ",bootindex=%u", dev->info->bootIndex);
return virBufferContentAndReset(&buf);
}
static int
qemuBuildChrChardevFileStr(virLogManagerPtr logManager,
virCommandPtr cmd,
const virDomainDef *def,
virBufferPtr buf,
const char *filearg, const char *fileval,
const char *appendarg, int appendval)
{
if (logManager) {
g_autofree char *fdset = NULL;
int flags = 0;
int logfd;
size_t idx;
if (appendval == VIR_TRISTATE_SWITCH_ABSENT ||
appendval == VIR_TRISTATE_SWITCH_OFF)
flags |= VIR_LOG_MANAGER_PROTOCOL_DOMAIN_OPEN_LOG_FILE_TRUNCATE;
if ((logfd = virLogManagerDomainOpenLogFile(logManager,
"qemu",
def->uuid,
def->name,
fileval,
flags,
NULL, NULL)) < 0)
return -1;
virCommandPassFDIndex(cmd, logfd, VIR_COMMAND_PASS_FD_CLOSE_PARENT, &idx);
fdset = qemuBuildFDSet(logfd, idx);
virCommandAddArg(cmd, "-add-fd");
virCommandAddArg(cmd, fdset);
virBufferAsprintf(buf, ",%s=/dev/fdset/%zu,%s=on", filearg, idx, appendarg);
} else {
virBufferAsprintf(buf, ",%s=", filearg);
virQEMUBuildBufferEscapeComma(buf, fileval);
if (appendval != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(buf, ",%s=%s", appendarg,
virTristateSwitchTypeToString(appendval));
}
}
return 0;
}
static void
qemuBuildChrChardevReconnectStr(virBufferPtr buf,
const virDomainChrSourceReconnectDef *def)
{
if (def->enabled == VIR_TRISTATE_BOOL_YES) {
virBufferAsprintf(buf, ",reconnect=%u", def->timeout);
} else if (def->enabled == VIR_TRISTATE_BOOL_NO) {
virBufferAddLit(buf, ",reconnect=0");
}
}
int
qemuOpenChrChardevUNIXSocket(const virDomainChrSourceDef *dev)
{
struct sockaddr_un addr;
socklen_t addrlen = sizeof(addr);
int fd;
if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
virReportSystemError(errno, "%s",
_("Unable to create UNIX socket"));
goto error;
}
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
if (virStrcpyStatic(addr.sun_path, dev->data.nix.path) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("UNIX socket path '%s' too long"),
dev->data.nix.path);
goto error;
}
if (unlink(dev->data.nix.path) < 0 && errno != ENOENT) {
virReportSystemError(errno,
_("Unable to unlink %s"),
dev->data.nix.path);
goto error;
}
if (bind(fd, (struct sockaddr *)&addr, addrlen) < 0) {
virReportSystemError(errno,
_("Unable to bind to UNIX socket path '%s'"),
dev->data.nix.path);
goto error;
}
if (listen(fd, 1) < 0) {
virReportSystemError(errno,
_("Unable to listen to UNIX socket path '%s'"),
dev->data.nix.path);
goto error;
}
/* We run QEMU with umask 0002. Compensate for the umask
* libvirtd might be running under to get the same permission
* QEMU would have. */
if (virFileUpdatePerm(dev->data.nix.path, 0002, 0664) < 0)
goto error;
return fd;
error:
VIR_FORCE_CLOSE(fd);
return -1;
}
enum {
QEMU_BUILD_CHARDEV_TCP_NOWAIT = (1 << 0),
QEMU_BUILD_CHARDEV_FILE_LOGD = (1 << 1),
QEMU_BUILD_CHARDEV_UNIX_FD_PASS = (1 << 2),
};
/* This function outputs a -chardev command line option which describes only the
* host side of the character device */
static char *
qemuBuildChrChardevStr(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
const virDomainChrSourceDef *dev,
const char *alias,
virQEMUCapsPtr qemuCaps,
unsigned int cdevflags)
{
qemuDomainChrSourcePrivatePtr chrSourcePriv = QEMU_DOMAIN_CHR_SOURCE_PRIVATE(dev);
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
bool telnet;
g_autofree char *charAlias = NULL;
if (!(charAlias = qemuAliasChardevFromDevAlias(alias)))
return NULL;
switch (dev->type) {
case VIR_DOMAIN_CHR_TYPE_NULL:
virBufferAsprintf(&buf, "null,id=%s", charAlias);
break;
case VIR_DOMAIN_CHR_TYPE_VC:
virBufferAsprintf(&buf, "vc,id=%s", charAlias);
break;
case VIR_DOMAIN_CHR_TYPE_PTY:
virBufferAsprintf(&buf, "pty,id=%s", charAlias);
break;
case VIR_DOMAIN_CHR_TYPE_DEV:
virBufferAsprintf(&buf, "%s,id=%s,path=",
STRPREFIX(alias, "parallel") ? "parport" : "tty",
charAlias);
virQEMUBuildBufferEscapeComma(&buf, dev->data.file.path);
break;
case VIR_DOMAIN_CHR_TYPE_FILE:
virBufferAsprintf(&buf, "file,id=%s", charAlias);
if (qemuBuildChrChardevFileStr(cdevflags & QEMU_BUILD_CHARDEV_FILE_LOGD ?
logManager : NULL,
cmd, def, &buf,
"path", dev->data.file.path,
"append", dev->data.file.append) < 0)
return NULL;
break;
case VIR_DOMAIN_CHR_TYPE_PIPE:
virBufferAsprintf(&buf, "pipe,id=%s,path=", charAlias);
virQEMUBuildBufferEscapeComma(&buf, dev->data.file.path);
break;
case VIR_DOMAIN_CHR_TYPE_STDIO:
virBufferAsprintf(&buf, "stdio,id=%s", charAlias);
break;
case VIR_DOMAIN_CHR_TYPE_UDP: {
const char *connectHost = dev->data.udp.connectHost;
const char *bindHost = dev->data.udp.bindHost;
const char *bindService = dev->data.udp.bindService;
if (connectHost == NULL)
connectHost = "";
if (bindHost == NULL)
bindHost = "";
if (bindService == NULL)
bindService = "0";
virBufferAsprintf(&buf,
"udp,id=%s,host=%s,port=%s,localaddr=%s,"
"localport=%s",
charAlias,
connectHost,
dev->data.udp.connectService,
bindHost, bindService);
break;
}
case VIR_DOMAIN_CHR_TYPE_TCP:
telnet = dev->data.tcp.protocol == VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET;
virBufferAsprintf(&buf,
"socket,id=%s,host=%s,port=%s%s",
charAlias,
dev->data.tcp.host,
dev->data.tcp.service,
telnet ? ",telnet=on" : "");
if (dev->data.tcp.listen) {
virBufferAddLit(&buf, ",server=on");
if (cdevflags & QEMU_BUILD_CHARDEV_TCP_NOWAIT)
virBufferAddLit(&buf, ",wait=off");
}
qemuBuildChrChardevReconnectStr(&buf, &dev->data.tcp.reconnect);
if (dev->data.tcp.haveTLS == VIR_TRISTATE_BOOL_YES) {
g_autofree char *objalias = NULL;
const char *tlsCertEncSecAlias = NULL;
/* Add the secret object first if necessary. The
* secinfo is added only to a TCP serial device during
* qemuDomainSecretChardevPrepare. Subsequently called
* functions can just check the config fields */
if (chrSourcePriv && chrSourcePriv->secinfo) {
if (qemuBuildObjectSecretCommandLine(cmd,
chrSourcePriv->secinfo,
qemuCaps) < 0)
return NULL;
tlsCertEncSecAlias = chrSourcePriv->secinfo->s.aes.alias;
}
if (!(objalias = qemuAliasTLSObjFromSrcAlias(charAlias)))
return NULL;
if (qemuBuildTLSx509CommandLine(cmd, cfg->chardevTLSx509certdir,
dev->data.tcp.listen,
cfg->chardevTLSx509verify,
tlsCertEncSecAlias,
objalias, qemuCaps) < 0) {
return NULL;
}
virBufferAsprintf(&buf, ",tls-creds=%s", objalias);
}
break;
case VIR_DOMAIN_CHR_TYPE_UNIX:
virBufferAsprintf(&buf, "socket,id=%s", charAlias);
if (dev->data.nix.listen &&
(cdevflags & QEMU_BUILD_CHARDEV_UNIX_FD_PASS) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_FD_PASS)) {
int fd;
if (qemuSecuritySetSocketLabel(secManager, (virDomainDefPtr)def) < 0)
return NULL;
fd = qemuOpenChrChardevUNIXSocket(dev);
if (qemuSecurityClearSocketLabel(secManager, (virDomainDefPtr)def) < 0) {
VIR_FORCE_CLOSE(fd);
return NULL;
}
if (fd < 0)
return NULL;
virBufferAsprintf(&buf, ",fd=%d", fd);
virCommandPassFD(cmd, fd, VIR_COMMAND_PASS_FD_CLOSE_PARENT);
} else {
virBufferAddLit(&buf, ",path=");
virQEMUBuildBufferEscapeComma(&buf, dev->data.nix.path);
}
if (dev->data.nix.listen) {
virBufferAddLit(&buf, ",server=on");
if (cdevflags & QEMU_BUILD_CHARDEV_TCP_NOWAIT)
virBufferAddLit(&buf, ",wait=off");
}
qemuBuildChrChardevReconnectStr(&buf, &dev->data.nix.reconnect);
break;
case VIR_DOMAIN_CHR_TYPE_SPICEVMC:
virBufferAsprintf(&buf, "spicevmc,id=%s,name=%s", charAlias,
virDomainChrSpicevmcTypeToString(dev->data.spicevmc));
break;
case VIR_DOMAIN_CHR_TYPE_SPICEPORT:
virBufferAsprintf(&buf, "spiceport,id=%s,name=%s", charAlias,
dev->data.spiceport.channel);
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported chardev '%s'"),
virDomainChrTypeToString(dev->type));
return NULL;
}
if (dev->logfile) {
if (qemuBuildChrChardevFileStr(logManager, cmd, def, &buf,
"logfile", dev->logfile,
"logappend", dev->logappend) < 0)
return NULL;
}
return virBufferContentAndReset(&buf);
}
static const char *
qemuBuildHostdevMdevModelTypeString(virDomainHostdevSubsysMediatedDevPtr mdev)
{
/* when the 'ramfb' attribute is set, we must use the nohotplug variant
* rather than 'vfio-pci' */
if (mdev->model == VIR_MDEV_MODEL_TYPE_VFIO_PCI &&
mdev->ramfb == VIR_TRISTATE_SWITCH_ON)
return "vfio-pci-nohotplug";
return virMediatedDeviceModelTypeToString(mdev->model);
}
char *
qemuBuildHostdevMediatedDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virDomainHostdevSubsysMediatedDevPtr mdevsrc = &dev->source.subsys.u.mdev;
g_autofree char *mdevPath = NULL;
const char *dev_str = NULL;
if (!(mdevPath = virMediatedDeviceGetSysfsPath(mdevsrc->uuidstr)))
return NULL;
dev_str = qemuBuildHostdevMdevModelTypeString(mdevsrc);
if (!dev_str)
return NULL;
virBufferAdd(&buf, dev_str, -1);
virBufferAsprintf(&buf, ",id=%s,sysfsdev=%s", dev->info->alias, mdevPath);
if (mdevsrc->display != VIR_TRISTATE_SWITCH_ABSENT)
virBufferAsprintf(&buf, ",display=%s",
virTristateSwitchTypeToString(mdevsrc->display));
if (qemuBuildDeviceAddressStr(&buf, def, dev->info, qemuCaps) < 0)
return NULL;
if (dev->info->bootIndex)
virBufferAsprintf(&buf, ",bootindex=%u", dev->info->bootIndex);
if (mdevsrc->ramfb == VIR_TRISTATE_SWITCH_ON)
virBufferAsprintf(&buf, ",ramfb=%s",
virTristateSwitchTypeToString(mdevsrc->ramfb));
return virBufferContentAndReset(&buf);
}
qemuBlockStorageSourceAttachData *
qemuBuildHostdevSCSIDetachPrepare(virDomainHostdevDefPtr hostdev,
virQEMUCapsPtr qemuCaps)
{
virDomainHostdevSubsysSCSIPtr scsisrc = &hostdev->source.subsys.u.scsi;
g_autoptr(qemuBlockStorageSourceAttachData) ret = g_new0(qemuBlockStorageSourceAttachData, 1);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV_HOSTDEV_SCSI)) {
virStorageSourcePtr src;
qemuDomainStorageSourcePrivatePtr srcpriv;
switch ((virDomainHostdevSCSIProtocolType) scsisrc->protocol) {
case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_NONE:
src = scsisrc->u.host.src;
break;
case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI:
src = scsisrc->u.iscsi.src;
break;
case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_LAST:
default:
virReportEnumRangeError(virDomainHostdevSCSIProtocolType, scsisrc->protocol);
return NULL;
}
srcpriv = QEMU_DOMAIN_STORAGE_SOURCE_PRIVATE(src);
ret->storageNodeName = src->nodestorage;
ret->storageAttached = true;
if (srcpriv && srcpriv->secinfo &&
srcpriv->secinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES)
ret->authsecretAlias = g_strdup(srcpriv->secinfo->s.aes.alias);
} else {
ret->driveAlias = qemuAliasFromHostdev(hostdev);
ret->driveAdded = true;
}
return g_steal_pointer(&ret);
}
qemuBlockStorageSourceAttachData *
qemuBuildHostdevSCSIAttachPrepare(virDomainHostdevDefPtr hostdev,
const char **backendAlias,
virQEMUCapsPtr qemuCaps)
{
virDomainHostdevSubsysSCSIPtr scsisrc = &hostdev->source.subsys.u.scsi;
g_autoptr(qemuBlockStorageSourceAttachData) ret = g_new0(qemuBlockStorageSourceAttachData, 1);
virStorageSourcePtr src = NULL;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV_HOSTDEV_SCSI)) {
switch ((virDomainHostdevSCSIProtocolType) scsisrc->protocol) {
case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_NONE:
src = scsisrc->u.host.src;
break;
case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI:
src = scsisrc->u.iscsi.src;
break;
case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_LAST:
default:
virReportEnumRangeError(virDomainHostdevSCSIProtocolType, scsisrc->protocol);
return NULL;
}
ret->storageNodeName = src->nodestorage;
*backendAlias = src->nodestorage;
if (!(ret->storageProps = qemuBlockStorageSourceGetBackendProps(src,
QEMU_BLOCK_STORAGE_SOURCE_BACKEND_PROPS_SKIP_UNMAP)))
return NULL;
} else {
if (scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI)
src = scsisrc->u.iscsi.src;
ret->driveCmd = qemuBuildSCSIHostdevDrvStr(hostdev, qemuCaps);
ret->driveAlias = qemuAliasFromHostdev(hostdev);
*backendAlias = ret->driveAlias;
}
if (src &&
qemuBuildStorageSourceAttachPrepareCommon(src, ret, qemuCaps) < 0)
return NULL;
return g_steal_pointer(&ret);
}
static int
qemuBuildHostdevSCSICommandLine(virCommandPtr cmd,
const virDomainDef *def,
virDomainHostdevDefPtr hostdev,
virQEMUCapsPtr qemuCaps)
{
g_autoptr(qemuBlockStorageSourceAttachData) data = NULL;
g_autofree char *devstr = NULL;
const char *backendAlias = NULL;
if (!(data = qemuBuildHostdevSCSIAttachPrepare(hostdev, &backendAlias, qemuCaps)))
return -1;
if (qemuBuildBlockStorageSourceAttachDataCommandline(cmd, data, qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildSCSIHostdevDevStr(def, hostdev, backendAlias)))
return -1;
virCommandAddArg(cmd, devstr);
return 0;
}
static int
qemuBuildHostdevCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
unsigned int *bootHostdevNet)
{
size_t i;
for (i = 0; i < def->nhostdevs; i++) {
virDomainHostdevDefPtr hostdev = def->hostdevs[i];
virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys;
virDomainHostdevSubsysMediatedDevPtr mdevsrc = &subsys->u.mdev;
g_autofree char *devstr = NULL;
g_autofree char *vhostfdName = NULL;
unsigned int bootIndex = hostdev->info->bootIndex;
int vhostfd = -1;
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS)
continue;
switch ((virDomainHostdevSubsysType) subsys->type) {
/* USB */
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB:
virCommandAddArg(cmd, "-device");
if (!(devstr =
qemuBuildUSBHostdevDevStr(def, hostdev, qemuCaps)))
return -1;
virCommandAddArg(cmd, devstr);
break;
/* PCI */
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI:
/* bootNet will be non-0 if boot order was set and no other
* net devices were encountered
*/
if (hostdev->parentnet && bootIndex == 0) {
bootIndex = *bootHostdevNet;
*bootHostdevNet = 0;
}
/* Ignore unassigned devices */
if (hostdev->info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_UNASSIGNED)
continue;
if (qemuCommandAddExtDevice(cmd, hostdev->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
devstr = qemuBuildPCIHostdevDevStr(def, hostdev, bootIndex, qemuCaps);
if (!devstr)
return -1;
virCommandAddArg(cmd, devstr);
break;
/* SCSI */
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI:
if (qemuBuildHostdevSCSICommandLine(cmd, def, hostdev, qemuCaps) < 0)
return -1;
break;
/* SCSI_host */
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI_HOST:
if (hostdev->source.subsys.u.scsi_host.protocol ==
VIR_DOMAIN_HOSTDEV_SUBSYS_SCSI_HOST_PROTOCOL_TYPE_VHOST) {
if (virSCSIVHostOpenVhostSCSI(&vhostfd) < 0)
return -1;
vhostfdName = g_strdup_printf("%d", vhostfd);
virCommandPassFD(cmd, vhostfd,
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildSCSIVHostHostdevDevStr(def,
hostdev,
qemuCaps,
vhostfdName)))
return -1;
virCommandAddArg(cmd, devstr);
}
break;
/* MDEV */
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_MDEV:
switch ((virMediatedDeviceModelType) mdevsrc->model) {
case VIR_MDEV_MODEL_TYPE_VFIO_PCI:
case VIR_MDEV_MODEL_TYPE_VFIO_CCW:
case VIR_MDEV_MODEL_TYPE_VFIO_AP:
break;
case VIR_MDEV_MODEL_TYPE_LAST:
default:
virReportEnumRangeError(virMediatedDeviceModelType,
subsys->u.mdev.model);
return -1;
}
virCommandAddArg(cmd, "-device");
if (!(devstr =
qemuBuildHostdevMediatedDevStr(def, hostdev, qemuCaps)))
return -1;
virCommandAddArg(cmd, devstr);
break;
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_LAST:
break;
}
}
return 0;
}
static int
qemuBuildMonitorCommandLine(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
qemuDomainObjPrivatePtr priv)
{
g_autofree char *chrdev = NULL;
unsigned int cdevflags = QEMU_BUILD_CHARDEV_TCP_NOWAIT |
QEMU_BUILD_CHARDEV_UNIX_FD_PASS;
if (priv->chardevStdioLogd)
cdevflags |= QEMU_BUILD_CHARDEV_FILE_LOGD;
if (!priv->monConfig)
return 0;
if (!(chrdev = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
priv->monConfig, "monitor",
priv->qemuCaps, cdevflags)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, chrdev);
virCommandAddArg(cmd, "-mon");
virCommandAddArg(cmd, "chardev=charmonitor,id=monitor,mode=control");
return 0;
}
static char *
qemuBuildVirtioSerialPortDevStr(const virDomainDef *def,
virDomainChrDefPtr dev)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
const char *contAlias;
switch (dev->deviceType) {
case VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE:
virBufferAddLit(&buf, "virtconsole");
break;
case VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL:
virBufferAddLit(&buf, "virtserialport");
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Cannot use virtio serial for parallel/serial devices"));
return NULL;
}
if (dev->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
dev->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW &&
dev->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390) {
/* Check it's a virtio-serial address */
if (dev->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_SERIAL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("virtio serial device has invalid address type"));
return NULL;
}
contAlias = virDomainControllerAliasFind(def, VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL,
dev->info.addr.vioserial.controller);
if (!contAlias)
return NULL;
virBufferAsprintf(&buf, ",bus=%s.%d,nr=%d", contAlias,
dev->info.addr.vioserial.bus,
dev->info.addr.vioserial.port);
}
if (dev->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL &&
dev->source->type == VIR_DOMAIN_CHR_TYPE_SPICEVMC &&
dev->target.name &&
STRNEQ(dev->target.name, "com.redhat.spice.0")) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Unsupported spicevmc target name '%s'"),
dev->target.name);
return NULL;
}
virBufferAsprintf(&buf, ",chardev=char%s,id=%s",
dev->info.alias, dev->info.alias);
if (dev->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL &&
(dev->source->type == VIR_DOMAIN_CHR_TYPE_SPICEVMC ||
dev->target.name)) {
virBufferAsprintf(&buf, ",name=%s", dev->target.name
? dev->target.name : "com.redhat.spice.0");
}
return virBufferContentAndReset(&buf);
}
static char *
qemuBuildSclpDevStr(virDomainChrDefPtr dev)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
if (dev->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE) {
switch (dev->targetType) {
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLP:
virBufferAddLit(&buf, "sclpconsole");
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLPLM:
virBufferAddLit(&buf, "sclplmconsole");
break;
}
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Cannot use slcp with devices other than console"));
return NULL;
}
virBufferAsprintf(&buf, ",chardev=char%s,id=%s",
dev->info.alias, dev->info.alias);
return virBufferContentAndReset(&buf);
}
static int
qemuBuildRNGBackendChrdevStr(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virDomainRNGDefPtr rng,
virQEMUCapsPtr qemuCaps,
char **chr,
bool chardevStdioLogd)
{
unsigned int cdevflags = QEMU_BUILD_CHARDEV_TCP_NOWAIT |
QEMU_BUILD_CHARDEV_UNIX_FD_PASS;
*chr = NULL;
if (chardevStdioLogd)
cdevflags |= QEMU_BUILD_CHARDEV_FILE_LOGD;
switch ((virDomainRNGBackend) rng->backend) {
case VIR_DOMAIN_RNG_BACKEND_RANDOM:
case VIR_DOMAIN_RNG_BACKEND_BUILTIN:
case VIR_DOMAIN_RNG_BACKEND_LAST:
/* no chardev backend is needed */
return 0;
case VIR_DOMAIN_RNG_BACKEND_EGD:
if (!(*chr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
rng->source.chardev,
rng->info.alias, qemuCaps,
cdevflags)))
return -1;
break;
}
return 0;
}
int
qemuBuildRNGBackendProps(virDomainRNGDefPtr rng,
virJSONValuePtr *props)
{
g_autofree char *objAlias = NULL;
g_autofree char *charBackendAlias = NULL;
objAlias = g_strdup_printf("obj%s", rng->info.alias);
switch ((virDomainRNGBackend) rng->backend) {
case VIR_DOMAIN_RNG_BACKEND_RANDOM:
if (qemuMonitorCreateObjectProps(props, "rng-random", objAlias,
"s:filename", rng->source.file,
NULL) < 0)
return -1;
break;
case VIR_DOMAIN_RNG_BACKEND_EGD:
if (!(charBackendAlias = qemuAliasChardevFromDevAlias(rng->info.alias)))
return -1;
if (qemuMonitorCreateObjectProps(props, "rng-egd", objAlias,
"s:chardev", charBackendAlias,
NULL) < 0)
return -1;
break;
case VIR_DOMAIN_RNG_BACKEND_BUILTIN:
if (qemuMonitorCreateObjectProps(props, "rng-builtin", objAlias,
NULL) < 0)
return -1;
break;
case VIR_DOMAIN_RNG_BACKEND_LAST:
break;
}
return 0;
}
char *
qemuBuildRNGDevStr(const virDomainDef *def,
virDomainRNGDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
if (!qemuDomainCheckCCWS390AddressSupport(def, &dev->info, qemuCaps,
dev->source.file))
return NULL;
if (qemuBuildVirtioDevStr(&buf, "virtio-rng", qemuCaps,
VIR_DOMAIN_DEVICE_RNG, dev) < 0) {
return NULL;
}
virBufferAsprintf(&buf, ",rng=obj%s,id=%s",
dev->info.alias, dev->info.alias);
if (dev->rate > 0) {
virBufferAsprintf(&buf, ",max-bytes=%u", dev->rate);
if (dev->period)
virBufferAsprintf(&buf, ",period=%u", dev->period);
else
virBufferAddLit(&buf, ",period=1000");
}
qemuBuildVirtioOptionsStr(&buf, dev->virtio);
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static int
qemuBuildRNGCommandLine(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
bool chardevStdioLogd)
{
size_t i;
for (i = 0; i < def->nrngs; i++) {
g_autoptr(virJSONValue) props = NULL;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virDomainRNGDefPtr rng = def->rngs[i];
g_autofree char *chardev = NULL;
g_autofree char *devstr = NULL;
int rc;
if (!rng->info.alias) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("RNG device is missing alias"));
return -1;
}
/* possibly add character device for backend */
if (qemuBuildRNGBackendChrdevStr(logManager, secManager, cmd, cfg, def,
rng, qemuCaps, &chardev,
chardevStdioLogd) < 0)
return -1;
if (chardev)
virCommandAddArgList(cmd, "-chardev", chardev, NULL);
if (qemuBuildRNGBackendProps(rng, &props) < 0)
return -1;
rc = qemuBuildObjectCommandlineFromJSON(&buf, props, qemuCaps);
if (rc < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
/* add the device */
if (qemuCommandAddExtDevice(cmd, &rng->info) < 0)
return -1;
if (!(devstr = qemuBuildRNGDevStr(def, rng, qemuCaps)))
return -1;
virCommandAddArgList(cmd, "-device", devstr, NULL);
}
return 0;
}
static char *
qemuBuildSmbiosBiosStr(virSysinfoBIOSDefPtr def)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
if (!def)
return NULL;
virBufferAddLit(&buf, "type=0");
/* 0:Vendor */
if (def->vendor) {
virBufferAddLit(&buf, ",vendor=");
virQEMUBuildBufferEscapeComma(&buf, def->vendor);
}
/* 0:BIOS Version */
if (def->version) {
virBufferAddLit(&buf, ",version=");
virQEMUBuildBufferEscapeComma(&buf, def->version);
}
/* 0:BIOS Release Date */
if (def->date) {
virBufferAddLit(&buf, ",date=");
virQEMUBuildBufferEscapeComma(&buf, def->date);
}
/* 0:System BIOS Major Release and 0:System BIOS Minor Release */
if (def->release) {
virBufferAddLit(&buf, ",release=");
virQEMUBuildBufferEscapeComma(&buf, def->release);
}
return virBufferContentAndReset(&buf);
}
static char *
qemuBuildSmbiosSystemStr(virSysinfoSystemDefPtr def,
bool skip_uuid)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
if (!def ||
(!def->manufacturer && !def->product && !def->version &&
!def->serial && (!def->uuid || skip_uuid) &&
def->sku && !def->family))
return NULL;
virBufferAddLit(&buf, "type=1");
/* 1:Manufacturer */
if (def->manufacturer) {
virBufferAddLit(&buf, ",manufacturer=");
virQEMUBuildBufferEscapeComma(&buf, def->manufacturer);
}
/* 1:Product Name */
if (def->product) {
virBufferAddLit(&buf, ",product=");
virQEMUBuildBufferEscapeComma(&buf, def->product);
}
/* 1:Version */
if (def->version) {
virBufferAddLit(&buf, ",version=");
virQEMUBuildBufferEscapeComma(&buf, def->version);
}
/* 1:Serial Number */
if (def->serial) {
virBufferAddLit(&buf, ",serial=");
virQEMUBuildBufferEscapeComma(&buf, def->serial);
}
/* 1:UUID */
if (def->uuid && !skip_uuid) {
virBufferAddLit(&buf, ",uuid=");
virQEMUBuildBufferEscapeComma(&buf, def->uuid);
}
/* 1:SKU Number */
if (def->sku) {
virBufferAddLit(&buf, ",sku=");
virQEMUBuildBufferEscapeComma(&buf, def->sku);
}
/* 1:Family */
if (def->family) {
virBufferAddLit(&buf, ",family=");
virQEMUBuildBufferEscapeComma(&buf, def->family);
}
return virBufferContentAndReset(&buf);
}
static char *
qemuBuildSmbiosBaseBoardStr(virSysinfoBaseBoardDefPtr def)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
if (!def)
return NULL;
virBufferAddLit(&buf, "type=2");
/* 2:Manufacturer */
virBufferAddLit(&buf, ",manufacturer=");
virQEMUBuildBufferEscapeComma(&buf, def->manufacturer);
/* 2:Product Name */
if (def->product) {
virBufferAddLit(&buf, ",product=");
virQEMUBuildBufferEscapeComma(&buf, def->product);
}
/* 2:Version */
if (def->version) {
virBufferAddLit(&buf, ",version=");
virQEMUBuildBufferEscapeComma(&buf, def->version);
}
/* 2:Serial Number */
if (def->serial) {
virBufferAddLit(&buf, ",serial=");
virQEMUBuildBufferEscapeComma(&buf, def->serial);
}
/* 2:Asset Tag */
if (def->asset) {
virBufferAddLit(&buf, ",asset=");
virQEMUBuildBufferEscapeComma(&buf, def->asset);
}
/* 2:Location */
if (def->location) {
virBufferAddLit(&buf, ",location=");
virQEMUBuildBufferEscapeComma(&buf, def->location);
}
return virBufferContentAndReset(&buf);
}
static char *
qemuBuildSmbiosOEMStringsStr(virSysinfoOEMStringsDefPtr def)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
size_t i;
if (!def)
return NULL;
virBufferAddLit(&buf, "type=11");
for (i = 0; i < def->nvalues; i++) {
virBufferAddLit(&buf, ",value=");
virQEMUBuildBufferEscapeComma(&buf, def->values[i]);
}
return virBufferContentAndReset(&buf);
}
static char *
qemuBuildSmbiosChassisStr(virSysinfoChassisDefPtr def)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
if (!def)
return NULL;
virBufferAddLit(&buf, "type=3");
/* 3:Manufacturer */
virBufferAddLit(&buf, ",manufacturer=");
virQEMUBuildBufferEscapeComma(&buf, def->manufacturer);
/* 3:Version */
if (def->version) {
virBufferAddLit(&buf, ",version=");
virQEMUBuildBufferEscapeComma(&buf, def->version);
}
/* 3:Serial Number */
if (def->serial) {
virBufferAddLit(&buf, ",serial=");
virQEMUBuildBufferEscapeComma(&buf, def->serial);
}
/* 3:Asset Tag */
if (def->asset) {
virBufferAddLit(&buf, ",asset=");
virQEMUBuildBufferEscapeComma(&buf, def->asset);
}
/* 3:Sku */
if (def->sku) {
virBufferAddLit(&buf, ",sku=");
virQEMUBuildBufferEscapeComma(&buf, def->sku);
}
return virBufferContentAndReset(&buf);
}
static int
qemuBuildSmbiosCommandLine(virCommandPtr cmd,
virQEMUDriverPtr driver,
const virDomainDef *def)
{
size_t i;
virSysinfoDefPtr source = NULL;
bool skip_uuid = false;
if (def->os.smbios_mode == VIR_DOMAIN_SMBIOS_NONE ||
def->os.smbios_mode == VIR_DOMAIN_SMBIOS_EMULATE)
return 0;
/* should we really error out or just warn in those cases ? */
if (def->os.smbios_mode == VIR_DOMAIN_SMBIOS_HOST) {
if (driver->hostsysinfo == NULL) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Host SMBIOS information is not available"));
return -1;
}
source = driver->hostsysinfo;
/* Host and guest uuid must differ, by definition of UUID. */
skip_uuid = true;
} else if (def->os.smbios_mode == VIR_DOMAIN_SMBIOS_SYSINFO) {
for (i = 0; i < def->nsysinfo; i++) {
if (def->sysinfo[i]->type == VIR_SYSINFO_SMBIOS) {
source = def->sysinfo[i];
break;
}
}
if (!source) {
virReportError(VIR_ERR_XML_ERROR,
_("Domain '%s' sysinfo are not available"),
def->name);
return -1;
}
/* domain_conf guaranteed that system_uuid matches guest uuid. */
}
if (source != NULL) {
char *smbioscmd;
smbioscmd = qemuBuildSmbiosBiosStr(source->bios);
if (smbioscmd != NULL) {
virCommandAddArgList(cmd, "-smbios", smbioscmd, NULL);
VIR_FREE(smbioscmd);
}
smbioscmd = qemuBuildSmbiosSystemStr(source->system, skip_uuid);
if (smbioscmd != NULL) {
virCommandAddArgList(cmd, "-smbios", smbioscmd, NULL);
VIR_FREE(smbioscmd);
}
if (source->nbaseBoard > 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("qemu does not support more than "
"one entry to Type 2 in SMBIOS table"));
return -1;
}
for (i = 0; i < source->nbaseBoard; i++) {
if (!(smbioscmd =
qemuBuildSmbiosBaseBoardStr(source->baseBoard + i)))
return -1;
virCommandAddArgList(cmd, "-smbios", smbioscmd, NULL);
VIR_FREE(smbioscmd);
}
smbioscmd = qemuBuildSmbiosChassisStr(source->chassis);
if (smbioscmd != NULL) {
virCommandAddArgList(cmd, "-smbios", smbioscmd, NULL);
VIR_FREE(smbioscmd);
}
if (source->oemStrings) {
if (!(smbioscmd = qemuBuildSmbiosOEMStringsStr(source->oemStrings)))
return -1;
virCommandAddArgList(cmd, "-smbios", smbioscmd, NULL);
VIR_FREE(smbioscmd);
}
}
return 0;
}
static int
qemuBuildSysinfoCommandLine(virCommandPtr cmd,
const virDomainDef *def)
{
size_t i;
/* We need to handle VIR_SYSINFO_FWCFG here, because
* VIR_SYSINFO_SMBIOS is handled in qemuBuildSmbiosCommandLine() */
for (i = 0; i < def->nsysinfo; i++) {
size_t j;
if (def->sysinfo[i]->type != VIR_SYSINFO_FWCFG)
continue;
for (j = 0; j < def->sysinfo[i]->nfw_cfgs; j++) {
const virSysinfoFWCfgDef *f = &def->sysinfo[i]->fw_cfgs[j];
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virBufferAsprintf(&buf, "name=%s", f->name);
if (f->value)
virBufferEscapeString(&buf, ",string=%s", f->value);
else
virBufferEscapeString(&buf, ",file=%s", f->file);
virCommandAddArg(cmd, "-fw_cfg");
virCommandAddArgBuffer(cmd, &buf);
}
}
return 0;
}
static int
qemuBuildVMGenIDCommandLine(virCommandPtr cmd,
const virDomainDef *def)
{
g_auto(virBuffer) opts = VIR_BUFFER_INITIALIZER;
char guid[VIR_UUID_STRING_BUFLEN];
if (!def->genidRequested)
return 0;
virUUIDFormat(def->genid, guid);
virBufferAsprintf(&opts, "vmgenid,guid=%s,id=vmgenid0", guid);
virCommandAddArg(cmd, "-device");
virCommandAddArgBuffer(cmd, &opts);
return 0;
}
static int
qemuBuildSgaCommandLine(virCommandPtr cmd,
const virDomainDef *def)
{
/* Serial graphics adapter */
if (def->os.bios.useserial == VIR_TRISTATE_BOOL_YES)
virCommandAddArgList(cmd, "-device", "sga", NULL);
return 0;
}
static char *
qemuBuildClockArgStr(virDomainClockDefPtr def)
{
size_t i;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
switch (def->offset) {
case VIR_DOMAIN_CLOCK_OFFSET_UTC:
virBufferAddLit(&buf, "base=utc");
break;
case VIR_DOMAIN_CLOCK_OFFSET_LOCALTIME:
case VIR_DOMAIN_CLOCK_OFFSET_TIMEZONE:
virBufferAddLit(&buf, "base=localtime");
break;
case VIR_DOMAIN_CLOCK_OFFSET_VARIABLE: {
g_autoptr(GDateTime) now = g_date_time_new_now_utc();
g_autoptr(GDateTime) then = NULL;
g_autofree char *thenstr = NULL;
if (def->data.variable.basis == VIR_DOMAIN_CLOCK_BASIS_LOCALTIME) {
long localOffset;
/* in the case of basis='localtime', rather than trying to
* keep that basis (and associated offset from UTC) in the
* status and deal with adding in the difference each time
* there is an RTC_CHANGE event, it is simpler and less
* error prone to just convert the adjustment an offset
* from UTC right now (and change the status to
* "basis='utc' to reflect this). This eliminates
* potential errors in both RTC_CHANGE events and in
* migration (in the case that the status of DST, or the
* timezone of the destination host, changed relative to
* startup).
*/
if (virTimeLocalOffsetFromUTC(&localOffset) < 0)
return NULL;
def->data.variable.adjustment += localOffset;
def->data.variable.basis = VIR_DOMAIN_CLOCK_BASIS_UTC;
}
then = g_date_time_add_seconds(now, def->data.variable.adjustment);
thenstr = g_date_time_format(then, "%Y-%m-%dT%H:%M:%S");
/* when an RTC_CHANGE event is received from qemu, we need to
* have the adjustment used at domain start time available to
* compute the new offset from UTC. As this new value is
* itself stored in def->data.variable.adjustment, we need to
* save a copy of it now.
*/
def->data.variable.adjustment0 = def->data.variable.adjustment;
virBufferAsprintf(&buf, "base=%s", thenstr);
} break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported clock offset '%s'"),
virDomainClockOffsetTypeToString(def->offset));
return NULL;
}
/* Look for an 'rtc' timer element, and add in appropriate
* clock= and driftfix= */
for (i = 0; i < def->ntimers; i++) {
if (def->timers[i]->name == VIR_DOMAIN_TIMER_NAME_RTC) {
switch (def->timers[i]->track) {
case -1: /* unspecified - use hypervisor default */
break;
case VIR_DOMAIN_TIMER_TRACK_BOOT:
return NULL;
case VIR_DOMAIN_TIMER_TRACK_GUEST:
virBufferAddLit(&buf, ",clock=vm");
break;
case VIR_DOMAIN_TIMER_TRACK_WALL:
virBufferAddLit(&buf, ",clock=host");
break;
case VIR_DOMAIN_TIMER_TRACK_REALTIME:
virBufferAddLit(&buf, ",clock=rt");
break;
}
switch (def->timers[i]->tickpolicy) {
case -1:
case VIR_DOMAIN_TIMER_TICKPOLICY_DELAY:
/* This is the default - missed ticks delivered when
next scheduled, at normal rate */
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_CATCHUP:
/* deliver ticks at a faster rate until caught up */
virBufferAddLit(&buf, ",driftfix=slew");
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_MERGE:
case VIR_DOMAIN_TIMER_TICKPOLICY_DISCARD:
return NULL;
}
break; /* no need to check other timers - there is only one rtc */
}
}
return virBufferContentAndReset(&buf);
}
/* NOTE: Building of commands can change def->clock->data.* values, so
* virDomainDef is not const here.
*/
static int
qemuBuildClockCommandLine(virCommandPtr cmd,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
g_autofree char *rtcopt = NULL;
virCommandAddArg(cmd, "-rtc");
if (!(rtcopt = qemuBuildClockArgStr(&def->clock)))
return -1;
virCommandAddArg(cmd, rtcopt);
if (def->clock.offset == VIR_DOMAIN_CLOCK_OFFSET_TIMEZONE &&
def->clock.data.timezone) {
virCommandAddEnvPair(cmd, "TZ", def->clock.data.timezone);
}
for (i = 0; i < def->clock.ntimers; i++) {
switch ((virDomainTimerNameType)def->clock.timers[i]->name) {
case VIR_DOMAIN_TIMER_NAME_PLATFORM:
/* qemuDomainDefValidateClockTimers will handle this
* error condition */
return -1;
case VIR_DOMAIN_TIMER_NAME_TSC:
case VIR_DOMAIN_TIMER_NAME_KVMCLOCK:
case VIR_DOMAIN_TIMER_NAME_HYPERVCLOCK:
case VIR_DOMAIN_TIMER_NAME_ARMVTIMER:
/* Timers above are handled when building -cpu. */
case VIR_DOMAIN_TIMER_NAME_LAST:
break;
case VIR_DOMAIN_TIMER_NAME_RTC:
/* Already handled in qemuDomainDefValidateClockTimers */
break;
case VIR_DOMAIN_TIMER_NAME_PIT:
switch (def->clock.timers[i]->tickpolicy) {
case -1:
case VIR_DOMAIN_TIMER_TICKPOLICY_DELAY:
/* delay is the default if we don't have kernel
(kvm-pit), otherwise, the default is catchup. */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM_PIT_TICK_POLICY))
virCommandAddArgList(cmd, "-global",
"kvm-pit.lost_tick_policy=delay", NULL);
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_CATCHUP:
/* Do nothing - qemuDomainDefValidateClockTimers handled
* the possible error condition here. */
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_DISCARD:
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM_PIT_TICK_POLICY))
virCommandAddArgList(cmd, "-global",
"kvm-pit.lost_tick_policy=discard", NULL);
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_MERGE:
/* no way to support this mode for pit in qemu */
return -1;
}
break;
case VIR_DOMAIN_TIMER_NAME_HPET:
/* the only meaningful attribute for hpet is "present". If
* present is -1, that means it wasn't specified, and
* should be left at the default for the
* hypervisor. "default" when -no-hpet exists is "yes",
* and when -no-hpet doesn't exist is "no". "confusing"?
* "yes"! */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_HPET)) {
if (def->clock.timers[i]->present == 0)
virCommandAddArg(cmd, "-no-hpet");
}
break;
}
}
return 0;
}
static int
qemuBuildPMCommandLine(virCommandPtr cmd,
const virDomainDef *def,
qemuDomainObjPrivatePtr priv)
{
virQEMUCapsPtr qemuCaps = priv->qemuCaps;
/* Only add -no-reboot option if each event destroys domain */
if (priv->allowReboot == VIR_TRISTATE_BOOL_NO)
virCommandAddArg(cmd, "-no-reboot");
if (qemuDomainIsUsingNoShutdown(priv))
virCommandAddArg(cmd, "-no-shutdown");
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_ACPI)) {
if (def->features[VIR_DOMAIN_FEATURE_ACPI] != VIR_TRISTATE_SWITCH_ON)
virCommandAddArg(cmd, "-no-acpi");
}
/* We fall back to PIIX4_PM even for q35, since it's what we did
pre-q35-pm support. QEMU starts up fine (with a warning) if
mixing PIIX PM and -M q35. Starting to reject things here
could mean we refuse to start existing configs in the wild.*/
if (def->pm.s3) {
const char *pm_object = "PIIX4_PM";
if (qemuDomainIsQ35(def) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_ICH9_DISABLE_S3))
pm_object = "ICH9-LPC";
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.disable_s3=%d",
pm_object, def->pm.s3 == VIR_TRISTATE_BOOL_NO);
}
if (def->pm.s4) {
const char *pm_object = "PIIX4_PM";
if (qemuDomainIsQ35(def) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_ICH9_DISABLE_S4))
pm_object = "ICH9-LPC";
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.disable_s4=%d",
pm_object, def->pm.s4 == VIR_TRISTATE_BOOL_NO);
}
return 0;
}
static int
qemuBuildBootCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) boot_buf = VIR_BUFFER_INITIALIZER;
g_autofree char *boot_opts_str = NULL;
if (def->os.bootmenu) {
if (def->os.bootmenu == VIR_TRISTATE_BOOL_YES)
virBufferAddLit(&boot_buf, "menu=on,");
else
virBufferAddLit(&boot_buf, "menu=off,");
}
if (def->os.bios.rt_set) {
virBufferAsprintf(&boot_buf,
"reboot-timeout=%d,",
def->os.bios.rt_delay);
}
if (def->os.bm_timeout_set)
virBufferAsprintf(&boot_buf, "splash-time=%u,", def->os.bm_timeout);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BOOT_STRICT))
virBufferAddLit(&boot_buf, "strict=on,");
virBufferTrim(&boot_buf, ",");
boot_opts_str = virBufferContentAndReset(&boot_buf);
if (boot_opts_str) {
virCommandAddArg(cmd, "-boot");
virCommandAddArg(cmd, boot_opts_str);
}
if (def->os.kernel)
virCommandAddArgList(cmd, "-kernel", def->os.kernel, NULL);
if (def->os.initrd)
virCommandAddArgList(cmd, "-initrd", def->os.initrd, NULL);
if (def->os.cmdline)
virCommandAddArgList(cmd, "-append", def->os.cmdline, NULL);
if (def->os.dtb)
virCommandAddArgList(cmd, "-dtb", def->os.dtb, NULL);
if (def->os.slic_table) {
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virCommandAddArg(cmd, "-acpitable");
virBufferAddLit(&buf, "sig=SLIC,file=");
virQEMUBuildBufferEscapeComma(&buf, def->os.slic_table);
virCommandAddArgBuffer(cmd, &buf);
}
return 0;
}
static int
qemuBuildIOMMUCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
const virDomainIOMMUDef *iommu = def->iommu;
if (!iommu)
return 0;
switch (iommu->model) {
case VIR_DOMAIN_IOMMU_MODEL_INTEL: {
g_auto(virBuffer) opts = VIR_BUFFER_INITIALIZER;
/* qemuValidateDomainDeviceDefIOMMU() already made sure we have
* one of QEMU_CAPS_DEVICE_INTEL_IOMMU or QEMU_CAPS_MACHINE_IOMMU:
* here we handle the former case, while the latter is taken care
* of in qemuBuildMachineCommandLine() */
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_INTEL_IOMMU))
return 0;
virBufferAddLit(&opts, "intel-iommu");
if (iommu->intremap != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(&opts, ",intremap=%s",
virTristateSwitchTypeToString(iommu->intremap));
}
if (iommu->caching_mode != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(&opts, ",caching-mode=%s",
virTristateSwitchTypeToString(iommu->caching_mode));
}
if (iommu->eim != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(&opts, ",eim=%s",
virTristateSwitchTypeToString(iommu->eim));
}
if (iommu->iotlb != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(&opts, ",device-iotlb=%s",
virTristateSwitchTypeToString(iommu->iotlb));
}
if (iommu->aw_bits > 0)
virBufferAsprintf(&opts, ",aw-bits=%d", iommu->aw_bits);
virCommandAddArg(cmd, "-device");
virCommandAddArgBuffer(cmd, &opts);
break;
}
case VIR_DOMAIN_IOMMU_MODEL_SMMUV3:
/* There is no -device for SMMUv3, so nothing to be done here */
return 0;
case VIR_DOMAIN_IOMMU_MODEL_LAST:
default:
virReportEnumRangeError(virDomainIOMMUModel, iommu->model);
return -1;
}
return 0;
}
static int
qemuBuildGlobalControllerCommandLine(virCommandPtr cmd,
const virDomainDef *def)
{
size_t i;
for (i = 0; i < def->ncontrollers; i++) {
virDomainControllerDefPtr cont = def->controllers[i];
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
cont->opts.pciopts.pcihole64) {
const char *hoststr = NULL;
switch (cont->model) {
case VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT:
hoststr = "i440FX-pcihost";
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT:
hoststr = "q35-pcihost";
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("64-bit PCI hole setting is only for root"
" PCI controllers"));
return -1;
}
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.pci-hole64-size=%luK", hoststr,
cont->opts.pciopts.pcihole64size);
}
}
return 0;
}
static void
qemuBuildCpuFeature(virQEMUCapsPtr qemuCaps,
virBufferPtr buf,
const char *name,
bool state)
{
name = virQEMUCapsCPUFeatureToQEMU(qemuCaps, name);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION))
virBufferAsprintf(buf, ",%s=%s", name, state ? "on" : "off");
else
virBufferAsprintf(buf, ",%c%s", state ? '+' : '-', name);
}
static int
qemuBuildCpuModelArgStr(virQEMUDriverPtr driver,
const virDomainDef *def,
virBufferPtr buf,
virQEMUCapsPtr qemuCaps)
{
size_t i;
virCPUDefPtr cpu = def->cpu;
switch ((virCPUMode) cpu->mode) {
case VIR_CPU_MODE_HOST_PASSTHROUGH:
case VIR_CPU_MODE_MAXIMUM:
if (cpu->mode == VIR_CPU_MODE_MAXIMUM)
virBufferAddLit(buf, "max");
else
virBufferAddLit(buf, "host");
if (def->os.arch == VIR_ARCH_ARMV7L &&
driver->hostarch == VIR_ARCH_AARCH64) {
virBufferAddLit(buf, ",aarch64=off");
}
if (cpu->migratable) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_CPU_MIGRATABLE)) {
virBufferAsprintf(buf, ",migratable=%s",
virTristateSwitchTypeToString(cpu->migratable));
}
}
break;
case VIR_CPU_MODE_HOST_MODEL:
/* HOST_MODEL is a valid CPU mode for domain XMLs of all archs, meaning
* that we can't move this validation to parse time. By the time we reach
* this point, all non-PPC64 archs must have translated the CPU model to
* something else and set the CPU mode to MODE_CUSTOM.
*/
if (ARCH_IS_PPC64(def->os.arch)) {
virBufferAddLit(buf, "host");
if (cpu->model &&
!(qemuDomainIsPSeries(def) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_MAX_CPU_COMPAT))) {
virBufferAsprintf(buf, ",compat=%s", cpu->model);
}
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected host-model CPU for %s architecture"),
virArchToString(def->os.arch));
return -1;
}
break;
case VIR_CPU_MODE_CUSTOM:
virBufferAdd(buf, cpu->model, -1);
break;
case VIR_CPU_MODE_LAST:
break;
}
if ((ARCH_IS_S390(def->os.arch) || ARCH_IS_ARM(def->os.arch)) &&
cpu->features &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("CPU features not supported by hypervisor for %s "
"architecture"), virArchToString(def->os.arch));
return -1;
}
if (cpu->vendor_id)
virBufferAsprintf(buf, ",vendor=%s", cpu->vendor_id);
for (i = 0; i < cpu->nfeatures; i++) {
switch ((virCPUFeaturePolicy) cpu->features[i].policy) {
case VIR_CPU_FEATURE_FORCE:
case VIR_CPU_FEATURE_REQUIRE:
qemuBuildCpuFeature(qemuCaps, buf, cpu->features[i].name, true);
break;
case VIR_CPU_FEATURE_DISABLE:
case VIR_CPU_FEATURE_FORBID:
qemuBuildCpuFeature(qemuCaps, buf, cpu->features[i].name, false);
break;
case VIR_CPU_FEATURE_OPTIONAL:
case VIR_CPU_FEATURE_LAST:
break;
}
}
return 0;
}
static int
qemuBuildCpuCommandLine(virCommandPtr cmd,
virQEMUDriverPtr driver,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virArch hostarch = virArchFromHost();
g_autofree char *cpu = NULL;
g_autofree char *cpu_flags = NULL;
g_auto(virBuffer) cpu_buf = VIR_BUFFER_INITIALIZER;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
size_t i;
if (def->cpu &&
(def->cpu->mode != VIR_CPU_MODE_CUSTOM || def->cpu->model)) {
if (qemuBuildCpuModelArgStr(driver, def, &cpu_buf, qemuCaps) < 0)
return -1;
} else {
/*
* Need to force a 32-bit guest CPU type if
*
* 1. guest OS is i686
* 2. host OS is x86_64
* 3. emulator is qemu-kvm or kvm
*
* Or
*
* 1. guest OS is i686
* 2. emulator is qemu-system-x86_64
*/
if (def->os.arch == VIR_ARCH_I686 &&
((hostarch == VIR_ARCH_X86_64 &&
strstr(def->emulator, "kvm")) ||
strstr(def->emulator, "x86_64"))) {
virBufferAddLit(&cpu_buf, "qemu32");
}
}
/* Handle paravirtual timers */
for (i = 0; i < def->clock.ntimers; i++) {
virDomainTimerDefPtr timer = def->clock.timers[i];
switch ((virDomainTimerNameType)timer->name) {
case VIR_DOMAIN_TIMER_NAME_KVMCLOCK:
if (timer->present != -1) {
qemuBuildCpuFeature(qemuCaps, &buf, "kvmclock",
!!timer->present);
}
break;
case VIR_DOMAIN_TIMER_NAME_HYPERVCLOCK:
if (timer->present == 1)
virBufferAddLit(&buf, ",hv-time");
break;
case VIR_DOMAIN_TIMER_NAME_TSC:
if (timer->frequency > 0)
virBufferAsprintf(&buf, ",tsc-frequency=%llu", timer->frequency);
break;
case VIR_DOMAIN_TIMER_NAME_ARMVTIMER:
switch (timer->tickpolicy) {
case VIR_DOMAIN_TIMER_TICKPOLICY_DELAY:
virBufferAddLit(&buf, ",kvm-no-adjvtime=off");
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_DISCARD:
virBufferAddLit(&buf, ",kvm-no-adjvtime=on");
break;
case -1:
case VIR_DOMAIN_TIMER_TICKPOLICY_CATCHUP:
case VIR_DOMAIN_TIMER_TICKPOLICY_MERGE:
break;
}
break;
case VIR_DOMAIN_TIMER_NAME_PLATFORM:
case VIR_DOMAIN_TIMER_NAME_PIT:
case VIR_DOMAIN_TIMER_NAME_RTC:
case VIR_DOMAIN_TIMER_NAME_HPET:
break;
case VIR_DOMAIN_TIMER_NAME_LAST:
default:
virReportEnumRangeError(virDomainTimerNameType, timer->name);
return -1;
}
}
if (def->apic_eoi) {
qemuBuildCpuFeature(qemuCaps, &buf, "kvm_pv_eoi",
def->apic_eoi == VIR_TRISTATE_SWITCH_ON);
}
if (def->features[VIR_DOMAIN_FEATURE_PVSPINLOCK]) {
qemuBuildCpuFeature(qemuCaps, &buf, VIR_CPU_x86_KVM_PV_UNHALT,
def->features[VIR_DOMAIN_FEATURE_PVSPINLOCK] == VIR_TRISTATE_SWITCH_ON);
}
if (def->features[VIR_DOMAIN_FEATURE_HYPERV] == VIR_TRISTATE_SWITCH_ON) {
const char *hvPrefix = "hv-";
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CANONICAL_CPU_FEATURES))
hvPrefix = "hv_";
for (i = 0; i < VIR_DOMAIN_HYPERV_LAST; i++) {
switch ((virDomainHyperv) i) {
case VIR_DOMAIN_HYPERV_RELAXED:
case VIR_DOMAIN_HYPERV_VAPIC:
case VIR_DOMAIN_HYPERV_VPINDEX:
case VIR_DOMAIN_HYPERV_RUNTIME:
case VIR_DOMAIN_HYPERV_SYNIC:
case VIR_DOMAIN_HYPERV_STIMER:
case VIR_DOMAIN_HYPERV_RESET:
case VIR_DOMAIN_HYPERV_FREQUENCIES:
case VIR_DOMAIN_HYPERV_REENLIGHTENMENT:
case VIR_DOMAIN_HYPERV_TLBFLUSH:
case VIR_DOMAIN_HYPERV_IPI:
case VIR_DOMAIN_HYPERV_EVMCS:
if (def->hyperv_features[i] == VIR_TRISTATE_SWITCH_ON)
virBufferAsprintf(&buf, ",%s%s",
hvPrefix,
virDomainHypervTypeToString(i));
if ((i == VIR_DOMAIN_HYPERV_STIMER) &&
(def->hyperv_stimer_direct == VIR_TRISTATE_SWITCH_ON))
virBufferAsprintf(&buf, ",%s", VIR_CPU_x86_HV_STIMER_DIRECT);
break;
case VIR_DOMAIN_HYPERV_SPINLOCKS:
if (def->hyperv_features[i] == VIR_TRISTATE_SWITCH_ON)
virBufferAsprintf(&buf, ",%s=0x%x",
VIR_CPU_x86_HV_SPINLOCKS,
def->hyperv_spinlocks);
break;
case VIR_DOMAIN_HYPERV_VENDOR_ID:
if (def->hyperv_features[i] == VIR_TRISTATE_SWITCH_ON)
virBufferAsprintf(&buf, ",hv-vendor-id=%s",
def->hyperv_vendor_id);
break;
/* coverity[dead_error_begin] */
case VIR_DOMAIN_HYPERV_LAST:
break;
}
}
}
for (i = 0; i < def->npanics; i++) {
if (def->panics[i]->model == VIR_DOMAIN_PANIC_MODEL_HYPERV) {
virBufferAddLit(&buf, ",hv-crash");
break;
}
}
if (def->features[VIR_DOMAIN_FEATURE_KVM] == VIR_TRISTATE_SWITCH_ON) {
for (i = 0; i < VIR_DOMAIN_KVM_LAST; i++) {
switch ((virDomainKVM) i) {
case VIR_DOMAIN_KVM_HIDDEN:
if (def->kvm_features[i] == VIR_TRISTATE_SWITCH_ON)
virBufferAddLit(&buf, ",kvm=off");
break;
case VIR_DOMAIN_KVM_DEDICATED:
if (def->kvm_features[i] == VIR_TRISTATE_SWITCH_ON)
virBufferAddLit(&buf, ",kvm-hint-dedicated=on");
break;
case VIR_DOMAIN_KVM_POLLCONTROL:
if (def->kvm_features[i] == VIR_TRISTATE_SWITCH_ON)
virBufferAddLit(&buf, ",kvm-poll-control=on");
break;
/* coverity[dead_error_begin] */
case VIR_DOMAIN_KVM_LAST:
break;
}
}
}
/* ppc64 guests always have PMU enabled, but the 'pmu' option
* is not supported. */
if (def->features[VIR_DOMAIN_FEATURE_PMU] && !ARCH_IS_PPC64(def->os.arch)) {
virTristateSwitch pmu = def->features[VIR_DOMAIN_FEATURE_PMU];
virBufferAsprintf(&buf, ",pmu=%s",
virTristateSwitchTypeToString(pmu));
}
if (def->cpu && def->cpu->cache) {
virCPUCacheDefPtr cache = def->cpu->cache;
bool hostOff = false;
bool l3Off = false;
switch (cache->mode) {
case VIR_CPU_CACHE_MODE_EMULATE:
virBufferAddLit(&buf, ",l3-cache=on");
hostOff = true;
break;
case VIR_CPU_CACHE_MODE_PASSTHROUGH:
virBufferAddLit(&buf, ",host-cache-info=on");
l3Off = true;
break;
case VIR_CPU_CACHE_MODE_DISABLE:
hostOff = l3Off = true;
break;
case VIR_CPU_CACHE_MODE_LAST:
break;
}
if (hostOff &&
(def->cpu->mode == VIR_CPU_MODE_HOST_PASSTHROUGH ||
def->cpu->mode == VIR_CPU_MODE_MAXIMUM) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_CPU_CACHE))
virBufferAddLit(&buf, ",host-cache-info=off");
if (l3Off &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_CPU_CACHE))
virBufferAddLit(&buf, ",l3-cache=off");
}
cpu = virBufferContentAndReset(&cpu_buf);
cpu_flags = virBufferContentAndReset(&buf);
if (cpu_flags && !cpu) {
const char *default_model;
switch ((int)def->os.arch) {
case VIR_ARCH_I686:
default_model = "qemu32";
break;
case VIR_ARCH_X86_64:
default_model = "qemu64";
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("CPU flags requested but can't determine "
"default CPU for arch %s"),
virArchToString(def->os.arch));
return -1;
}
cpu = g_strdup(default_model);
}
if (cpu) {
virCommandAddArg(cmd, "-cpu");
virCommandAddArgFormat(cmd, "%s%s", cpu, NULLSTR_EMPTY(cpu_flags));
}
return 0;
}
static bool
qemuAppendKeyWrapMachineParm(virBuffer *buf, virQEMUCapsPtr qemuCaps,
int flag, const char *pname, int pstate)
{
if (pstate != VIR_TRISTATE_SWITCH_ABSENT) {
if (!virQEMUCapsGet(qemuCaps, flag)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("%s is not available with this QEMU binary"), pname);
return false;
}
virBufferAsprintf(buf, ",%s=%s", pname,
virTristateSwitchTypeToString(pstate));
}
return true;
}
static bool
qemuAppendKeyWrapMachineParms(virBuffer *buf, virQEMUCapsPtr qemuCaps,
const virDomainKeyWrapDef *keywrap)
{
if (!qemuAppendKeyWrapMachineParm(buf, qemuCaps, QEMU_CAPS_AES_KEY_WRAP,
"aes-key-wrap", keywrap->aes))
return false;
if (!qemuAppendKeyWrapMachineParm(buf, qemuCaps, QEMU_CAPS_DEA_KEY_WRAP,
"dea-key-wrap", keywrap->dea))
return false;
return true;
}
static void
qemuAppendLoadparmMachineParm(virBuffer *buf,
const virDomainDef *def)
{
size_t i = 0;
for (i = 0; i < def->ndisks; i++) {
virDomainDiskDefPtr disk = def->disks[i];
if (disk->info.bootIndex == 1 && disk->info.loadparm) {
virBufferAsprintf(buf, ",loadparm=%s", disk->info.loadparm);
return;
}
}
/* Network boot device */
for (i = 0; i < def->nnets; i++) {
virDomainNetDefPtr net = def->nets[i];
if (net->info.bootIndex == 1 && net->info.loadparm) {
virBufferAsprintf(buf, ",loadparm=%s", net->info.loadparm);
return;
}
}
}
static int
qemuBuildNameCommandLine(virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virCommandAddArg(cmd, "-name");
/* The 'guest' option let's us handle a name with '=' embedded in it */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NAME_GUEST))
virBufferAddLit(&buf, "guest=");
virQEMUBuildBufferEscapeComma(&buf, def->name);
if (cfg->setProcessName)
virBufferAsprintf(&buf, ",process=qemu:%s", def->name);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NAME_DEBUG_THREADS))
virBufferAddLit(&buf, ",debug-threads=on");
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static int
qemuBuildMachineCommandLine(virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
qemuDomainObjPrivatePtr priv)
{
virTristateSwitch vmport = def->features[VIR_DOMAIN_FEATURE_VMPORT];
virTristateSwitch smm = def->features[VIR_DOMAIN_FEATURE_SMM];
virCPUDefPtr cpu = def->cpu;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
size_t i;
virCommandAddArg(cmd, "-machine");
virBufferAdd(&buf, def->os.machine, -1);
switch ((virDomainVirtType)def->virtType) {
case VIR_DOMAIN_VIRT_QEMU:
virBufferAddLit(&buf, ",accel=tcg");
break;
case VIR_DOMAIN_VIRT_KVM:
virBufferAddLit(&buf, ",accel=kvm");
break;
case VIR_DOMAIN_VIRT_KQEMU:
case VIR_DOMAIN_VIRT_XEN:
case VIR_DOMAIN_VIRT_LXC:
case VIR_DOMAIN_VIRT_UML:
case VIR_DOMAIN_VIRT_OPENVZ:
case VIR_DOMAIN_VIRT_TEST:
case VIR_DOMAIN_VIRT_VMWARE:
case VIR_DOMAIN_VIRT_HYPERV:
case VIR_DOMAIN_VIRT_VBOX:
case VIR_DOMAIN_VIRT_PHYP:
case VIR_DOMAIN_VIRT_PARALLELS:
case VIR_DOMAIN_VIRT_BHYVE:
case VIR_DOMAIN_VIRT_VZ:
case VIR_DOMAIN_VIRT_NONE:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("the QEMU binary does not support %s"),
virDomainVirtTypeToString(def->virtType));
return -1;
case VIR_DOMAIN_VIRT_LAST:
default:
virReportEnumRangeError(virDomainVirtType, def->virtType);
return -1;
}
/* To avoid the collision of creating USB controllers when calling
* machine->init in QEMU, it needs to set usb=off
*/
virBufferAddLit(&buf, ",usb=off");
if (vmport != VIR_TRISTATE_SWITCH_ABSENT)
virBufferAsprintf(&buf, ",vmport=%s",
virTristateSwitchTypeToString(vmport));
if (smm)
virBufferAsprintf(&buf, ",smm=%s", virTristateSwitchTypeToString(smm));
if (def->mem.dump_core) {
virBufferAsprintf(&buf, ",dump-guest-core=%s",
virTristateSwitchTypeToString(def->mem.dump_core));
} else {
virBufferAsprintf(&buf, ",dump-guest-core=%s",
cfg->dumpGuestCore ? "on" : "off");
}
if (def->mem.nosharepages)
virBufferAddLit(&buf, ",mem-merge=off");
if (def->keywrap &&
!qemuAppendKeyWrapMachineParms(&buf, qemuCaps, def->keywrap))
return -1;
if (def->features[VIR_DOMAIN_FEATURE_GIC] == VIR_TRISTATE_SWITCH_ON) {
bool hasGICVersionOption = virQEMUCapsGet(qemuCaps,
QEMU_CAPS_MACH_VIRT_GIC_VERSION);
switch ((virGICVersion) def->gic_version) {
case VIR_GIC_VERSION_2:
if (!hasGICVersionOption) {
/* If the gic-version option is not available, we can't
* configure the GIC; however, we know that before the
* option was introduced the guests would always get a
* GICv2, so in order to maintain compatibility with
* those old QEMU versions all we need to do is stop
* early instead of erroring out */
break;
}
G_GNUC_FALLTHROUGH;
case VIR_GIC_VERSION_3:
case VIR_GIC_VERSION_HOST:
if (!hasGICVersionOption) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("gic-version option is not available "
"with this QEMU binary"));
return -1;
}
virBufferAsprintf(&buf, ",gic-version=%s",
virGICVersionTypeToString(def->gic_version));
break;
case VIR_GIC_VERSION_NONE:
case VIR_GIC_VERSION_LAST:
default:
break;
}
}
if (def->iommu) {
switch (def->iommu->model) {
case VIR_DOMAIN_IOMMU_MODEL_INTEL:
/* qemuValidateDomainDeviceDefIOMMU() already made sure we have
* one of QEMU_CAPS_DEVICE_INTEL_IOMMU or QEMU_CAPS_MACHINE_IOMMU:
* here we handle the latter case, while the former is taken care
* of in qemuBuildIOMMUCommandLine() */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_IOMMU))
virBufferAddLit(&buf, ",iommu=on");
break;
case VIR_DOMAIN_IOMMU_MODEL_SMMUV3:
virBufferAddLit(&buf, ",iommu=smmuv3");
break;
case VIR_DOMAIN_IOMMU_MODEL_LAST:
default:
virReportEnumRangeError(virDomainIOMMUModel, def->iommu->model);
return -1;
}
}
for (i = 0; i < def->nmems; i++) {
if (def->mems[i]->model == VIR_DOMAIN_MEMORY_MODEL_NVDIMM) {
virBufferAddLit(&buf, ",nvdimm=on");
break;
}
}
if (def->features[VIR_DOMAIN_FEATURE_IOAPIC] != VIR_DOMAIN_IOAPIC_NONE) {
switch ((virDomainIOAPIC) def->features[VIR_DOMAIN_FEATURE_IOAPIC]) {
case VIR_DOMAIN_IOAPIC_QEMU:
virBufferAddLit(&buf, ",kernel_irqchip=split");
break;
case VIR_DOMAIN_IOAPIC_KVM:
virBufferAddLit(&buf, ",kernel_irqchip=on");
break;
case VIR_DOMAIN_IOAPIC_NONE:
case VIR_DOMAIN_IOAPIC_LAST:
break;
}
}
if (def->features[VIR_DOMAIN_FEATURE_HPT] == VIR_TRISTATE_SWITCH_ON) {
if (def->hpt_resizing != VIR_DOMAIN_HPT_RESIZING_NONE) {
virBufferAsprintf(&buf, ",resize-hpt=%s",
virDomainHPTResizingTypeToString(def->hpt_resizing));
}
if (def->hpt_maxpagesize > 0) {
virBufferAsprintf(&buf, ",cap-hpt-max-page-size=%lluk",
def->hpt_maxpagesize);
}
}
if (def->features[VIR_DOMAIN_FEATURE_HTM] != VIR_TRISTATE_SWITCH_ABSENT) {
const char *str;
str = virTristateSwitchTypeToString(def->features[VIR_DOMAIN_FEATURE_HTM]);
virBufferAsprintf(&buf, ",cap-htm=%s", str);
}
if (def->features[VIR_DOMAIN_FEATURE_NESTED_HV] != VIR_TRISTATE_SWITCH_ABSENT) {
const char *str;
str = virTristateSwitchTypeToString(def->features[VIR_DOMAIN_FEATURE_NESTED_HV]);
virBufferAsprintf(&buf, ",cap-nested-hv=%s", str);
}
if (def->features[VIR_DOMAIN_FEATURE_CCF_ASSIST] != VIR_TRISTATE_SWITCH_ABSENT) {
const char *str;
str = virTristateSwitchTypeToString(def->features[VIR_DOMAIN_FEATURE_CCF_ASSIST]);
virBufferAsprintf(&buf, ",cap-ccf-assist=%s", str);
}
if (def->features[VIR_DOMAIN_FEATURE_CFPC] != VIR_DOMAIN_CFPC_NONE) {
const char *str = virDomainCFPCTypeToString(def->features[VIR_DOMAIN_FEATURE_CFPC]);
virBufferAsprintf(&buf, ",cap-cfpc=%s", str);
}
if (def->features[VIR_DOMAIN_FEATURE_SBBC] != VIR_DOMAIN_SBBC_NONE) {
const char *str = virDomainSBBCTypeToString(def->features[VIR_DOMAIN_FEATURE_SBBC]);
virBufferAsprintf(&buf, ",cap-sbbc=%s", str);
}
if (def->features[VIR_DOMAIN_FEATURE_IBS] != VIR_DOMAIN_IBS_NONE) {
const char *str = virDomainIBSTypeToString(def->features[VIR_DOMAIN_FEATURE_IBS]);
virBufferAsprintf(&buf, ",cap-ibs=%s", str);
}
if (cpu && cpu->model &&
cpu->mode == VIR_CPU_MODE_HOST_MODEL &&
qemuDomainIsPSeries(def) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_MAX_CPU_COMPAT)) {
virBufferAsprintf(&buf, ",max-cpu-compat=%s", cpu->model);
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_LOADPARM))
qemuAppendLoadparmMachineParm(&buf, def);
if (def->sev)
virBufferAddLit(&buf, ",memory-encryption=sev0");
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV)) {
if (priv->pflash0)
virBufferAsprintf(&buf, ",pflash0=%s", priv->pflash0->nodeformat);
if (priv->pflash1)
virBufferAsprintf(&buf, ",pflash1=%s", priv->pflash1->nodeformat);
}
if (virDomainNumaHasHMAT(def->numa))
virBufferAddLit(&buf, ",hmat=on");
if (!virDomainNumaGetNodeCount(def->numa)) {
const char *defaultRAMid = NULL;
/* QEMU is obsoleting -mem-path and -mem-prealloc. That means we have
* to switch to memory-backend-* even for regular RAM and to keep
* domain migratable we have to set the same ID as older QEMUs would.
* If domain has no NUMA nodes and QEMU is new enough to expose ID of
* the default RAM we want to use it for default RAM (construct
* memory-backend-* with corresponding attributes instead of obsolete
* -mem-path and -mem-prealloc).
* This generates only reference for the memory-backend-* object added
* later in qemuBuildMemCommandLine() */
defaultRAMid = virQEMUCapsGetMachineDefaultRAMid(qemuCaps,
def->virtType,
def->os.machine);
if (defaultRAMid)
virBufferAsprintf(&buf, ",memory-backend=%s", defaultRAMid);
}
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static void
qemuBuildTSEGCommandLine(virCommandPtr cmd,
const virDomainDef *def)
{
if (!def->tseg_specified)
return;
virCommandAddArg(cmd, "-global");
/* PostParse callback guarantees that the size is divisible by 1 MiB */
virCommandAddArgFormat(cmd, "mch.extended-tseg-mbytes=%llu",
def->tseg_size >> 20);
}
static int
qemuBuildSmpCommandLine(virCommandPtr cmd,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
unsigned int maxvcpus = virDomainDefGetVcpusMax(def);
unsigned int nvcpus = 0;
virDomainVcpuDefPtr vcpu;
size_t i;
/* count non-hotpluggable enabled vcpus. Hotpluggable ones will be added
* in a different way */
for (i = 0; i < maxvcpus; i++) {
vcpu = virDomainDefGetVcpu(def, i);
if (vcpu->online && vcpu->hotpluggable == VIR_TRISTATE_BOOL_NO)
nvcpus++;
}
virCommandAddArg(cmd, "-smp");
virBufferAsprintf(&buf, "%u", nvcpus);
if (nvcpus != maxvcpus)
virBufferAsprintf(&buf, ",maxcpus=%u", maxvcpus);
/* sockets, cores, and threads are either all zero
* or all non-zero, thus checking one of them is enough */
if (def->cpu && def->cpu->sockets) {
if (def->cpu->dies != 1 && !virQEMUCapsGet(qemuCaps, QEMU_CAPS_SMP_DIES)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Only 1 die per socket is supported"));
return -1;
}
virBufferAsprintf(&buf, ",sockets=%u", def->cpu->sockets);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SMP_DIES))
virBufferAsprintf(&buf, ",dies=%u", def->cpu->dies);
virBufferAsprintf(&buf, ",cores=%u", def->cpu->cores);
virBufferAsprintf(&buf, ",threads=%u", def->cpu->threads);
} else {
virBufferAsprintf(&buf, ",sockets=%u", virDomainDefGetVcpusMax(def));
virBufferAsprintf(&buf, ",cores=%u", 1);
virBufferAsprintf(&buf, ",threads=%u", 1);
}
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static int
qemuBuildMemPathStr(const virDomainDef *def,
virCommandPtr cmd,
qemuDomainObjPrivatePtr priv)
{
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(priv->driver);
const long system_page_size = virGetSystemPageSizeKB();
g_autofree char *mem_path = NULL;
/* There are two cases where we want to put -mem-path onto
* the command line: First one is when there are no guest
* NUMA nodes and hugepages are configured. The second one is
* if user requested file allocation. */
if (def->mem.nhugepages &&
def->mem.hugepages[0].size != system_page_size) {
unsigned long long pagesize = def->mem.hugepages[0].size;
if (!pagesize &&
qemuBuildMemoryGetDefaultPagesize(cfg, &pagesize) < 0)
return -1;
if (qemuGetDomainHupageMemPath(priv->driver, def, pagesize, &mem_path) < 0)
return -1;
} else if (def->mem.source == VIR_DOMAIN_MEMORY_SOURCE_FILE) {
if (qemuGetMemoryBackingPath(priv->driver, def, "ram", &mem_path) < 0)
return -1;
} else {
return 0;
}
if (def->mem.allocation != VIR_DOMAIN_MEMORY_ALLOCATION_IMMEDIATE) {
virCommandAddArgList(cmd, "-mem-prealloc", NULL);
priv->memPrealloc = true;
}
virCommandAddArgList(cmd, "-mem-path", mem_path, NULL);
return 0;
}
static int
qemuBuildMemCommandLineMemoryDefaultBackend(virCommandPtr cmd,
const virDomainDef *def,
qemuDomainObjPrivatePtr priv,
const char *defaultRAMid)
{
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(priv->driver);
g_autoptr(virJSONValue) props = NULL;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virDomainMemoryDef mem = { 0 };
mem.size = virDomainDefGetMemoryInitial(def);
mem.targetNode = -1;
mem.info.alias = (char *) defaultRAMid;
if (qemuBuildMemoryBackendProps(&props, defaultRAMid, cfg,
priv, def, &mem, false, true) < 0)
return -1;
if (qemuBuildObjectCommandlineFromJSON(&buf, props, priv->qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static int
qemuBuildMemCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
qemuDomainObjPrivatePtr priv)
{
const char *defaultRAMid = NULL;
virCommandAddArg(cmd, "-m");
if (virDomainDefHasMemoryHotplug(def)) {
/* Use the 'k' suffix to let qemu handle the units */
virCommandAddArgFormat(cmd, "size=%lluk,slots=%u,maxmem=%lluk",
virDomainDefGetMemoryInitial(def),
def->mem.memory_slots,
def->mem.max_memory);
} else {
virCommandAddArgFormat(cmd, "%llu",
virDomainDefGetMemoryInitial(def) / 1024);
}
defaultRAMid = virQEMUCapsGetMachineDefaultRAMid(qemuCaps,
def->virtType,
def->os.machine);
if (defaultRAMid) {
/* As documented in qemuBuildMachineCommandLine() if QEMU is new enough
* to expose default RAM ID we must use memory-backend-* even for
* regular memory because -mem-path and -mem-prealloc are obsolete.
* However, if domain has one or more NUMA nodes then there is no
* default RAM and we mustn't generate the memory object. */
if (!virDomainNumaGetNodeCount(def->numa))
qemuBuildMemCommandLineMemoryDefaultBackend(cmd, def, priv, defaultRAMid);
} else {
if (def->mem.allocation == VIR_DOMAIN_MEMORY_ALLOCATION_IMMEDIATE) {
virCommandAddArgList(cmd, "-mem-prealloc", NULL);
priv->memPrealloc = true;
}
/*
* Add '-mem-path' (and '-mem-prealloc') parameter here if
* the hugepages and no numa node is specified.
*/
if (!virDomainNumaGetNodeCount(def->numa) &&
qemuBuildMemPathStr(def, cmd, priv) < 0)
return -1;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_OVERCOMMIT)) {
virCommandAddArg(cmd, "-overcommit");
virCommandAddArgFormat(cmd, "mem-lock=%s", def->mem.locked ? "on" : "off");
} else {
virCommandAddArg(cmd, "-realtime");
virCommandAddArgFormat(cmd, "mlock=%s",
def->mem.locked ? "on" : "off");
}
return 0;
}
static int
qemuBuildIOThreadCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCaps *qemuCaps)
{
size_t i;
if (def->niothreadids == 0)
return 0;
for (i = 0; i < def->niothreadids; i++) {
g_autoptr(virJSONValue) props = NULL;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autofree char *alias = g_strdup_printf("iothread%u", def->iothreadids[i]->iothread_id);
if (qemuMonitorCreateObjectProps(&props, "iothread", alias, NULL) < 0)
return -1;
if (qemuBuildObjectCommandlineFromJSON(&buf, props, qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
}
return 0;
}
static int
qemuBuilNumaCellCache(virCommandPtr cmd,
const virDomainDef *def,
size_t cell)
{
size_t ncaches = virDomainNumaGetNodeCacheCount(def->numa, cell);
size_t i;
if (ncaches == 0)
return 0;
for (i = 0; i < ncaches; i++) {
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
unsigned int level;
unsigned int size;
unsigned int line;
virDomainCacheAssociativity associativity;
virDomainCachePolicy policy;
if (virDomainNumaGetNodeCache(def->numa, cell, i,
&level, &size, &line,
&associativity, &policy) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Unable to format NUMA node cache"));
return -1;
}
virBufferAsprintf(&buf,
"hmat-cache,node-id=%zu,size=%uK,level=%u",
cell, size, level);
switch (associativity) {
case VIR_DOMAIN_CACHE_ASSOCIATIVITY_NONE:
virBufferAddLit(&buf, ",associativity=none");
break;
case VIR_DOMAIN_CACHE_ASSOCIATIVITY_DIRECT:
virBufferAddLit(&buf, ",associativity=direct");
break;
case VIR_DOMAIN_CACHE_ASSOCIATIVITY_FULL:
virBufferAddLit(&buf, ",associativity=complex");
break;
case VIR_DOMAIN_CACHE_ASSOCIATIVITY_LAST:
break;
}
switch (policy) {
case VIR_DOMAIN_CACHE_POLICY_NONE:
virBufferAddLit(&buf, ",policy=none");
break;
case VIR_DOMAIN_CACHE_POLICY_WRITEBACK:
virBufferAddLit(&buf, ",policy=write-back");
break;
case VIR_DOMAIN_CACHE_POLICY_WRITETHROUGH:
virBufferAddLit(&buf, ",policy=write-through");
break;
case VIR_DOMAIN_CACHE_POLICY_LAST:
break;
}
if (line > 0)
virBufferAsprintf(&buf, ",line=%u", line);
virCommandAddArg(cmd, "-numa");
virCommandAddArgBuffer(cmd, &buf);
}
return 0;
}
VIR_ENUM_DECL(qemuDomainMemoryHierarchy);
VIR_ENUM_IMPL(qemuDomainMemoryHierarchy,
4, /* Maximum level of cache */
"memory", /* Special case, whole memory not specific cache */
"first-level",
"second-level",
"third-level");
static int
qemuBuildNumaHMATCommandLine(virCommandPtr cmd,
const virDomainDef *def)
{
size_t nlatencies;
size_t i;
if (!def->numa)
return 0;
nlatencies = virDomainNumaGetInterconnectsCount(def->numa);
for (i = 0; i < nlatencies; i++) {
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virDomainNumaInterconnectType type;
unsigned int initiator;
unsigned int target;
unsigned int cache;
virDomainMemoryLatency accessType;
unsigned long value;
const char *hierarchyStr;
const char *accessStr;
if (virDomainNumaGetInterconnect(def->numa, i,
&type, &initiator, &target,
&cache, &accessType, &value) < 0)
return -1;
hierarchyStr = qemuDomainMemoryHierarchyTypeToString(cache);
accessStr = virDomainMemoryLatencyTypeToString(accessType);
virBufferAsprintf(&buf,
"hmat-lb,initiator=%u,target=%u,hierarchy=%s,data-type=%s-",
initiator, target, hierarchyStr, accessStr);
switch (type) {
case VIR_DOMAIN_NUMA_INTERCONNECT_TYPE_LATENCY:
virBufferAsprintf(&buf, "latency,latency=%lu", value);
break;
case VIR_DOMAIN_NUMA_INTERCONNECT_TYPE_BANDWIDTH:
virBufferAsprintf(&buf, "bandwidth,bandwidth=%luK", value);
break;
}
virCommandAddArg(cmd, "-numa");
virCommandAddArgBuffer(cmd, &buf);
}
return 0;
}
static int
qemuBuildNumaCommandLine(virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
virCommandPtr cmd,
qemuDomainObjPrivatePtr priv)
{
size_t i, j;
virQEMUCapsPtr qemuCaps = priv->qemuCaps;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
char *next = NULL;
virBufferPtr nodeBackends = NULL;
bool needBackend = false;
bool hmat = false;
int rc;
int ret = -1;
size_t ncells = virDomainNumaGetNodeCount(def->numa);
ssize_t masterInitiator = -1;
if (!virDomainNumatuneNodesetIsAvailable(def->numa, priv->autoNodeset))
goto cleanup;
if (!virQEMUCapsGetMachineNumaMemSupported(qemuCaps,
def->virtType,
def->os.machine))
needBackend = true;
if (virDomainNumaHasHMAT(def->numa)) {
needBackend = true;
hmat = true;
}
nodeBackends = g_new0(virBuffer, ncells);
/* using of -numa memdev= cannot be combined with -numa mem=, thus we
* need to check which approach to use */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_RAM) ||
virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_FILE) ||
virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_MEMFD)) {
for (i = 0; i < ncells; i++) {
if ((rc = qemuBuildMemoryCellBackendStr(def, cfg, i, priv,
&nodeBackends[i])) < 0)
goto cleanup;
if (rc == 0)
needBackend = true;
}
}
if (!needBackend &&
qemuBuildMemPathStr(def, cmd, priv) < 0)
goto cleanup;
for (i = 0; i < ncells; i++) {
if (virDomainNumaGetNodeCpumask(def->numa, i)) {
masterInitiator = i;
break;
}
}
if (masterInitiator < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("At least one NUMA node has to have CPUs"));
goto cleanup;
}
for (i = 0; i < ncells; i++) {
virBitmapPtr cpumask = virDomainNumaGetNodeCpumask(def->numa, i);
ssize_t initiator = virDomainNumaGetNodeInitiator(def->numa, i);
if (needBackend) {
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &nodeBackends[i]);
}
virCommandAddArg(cmd, "-numa");
virBufferAsprintf(&buf, "node,nodeid=%zu", i);
if (cpumask) {
g_autofree char *cpumaskStr = NULL;
char *tmpmask;
if (!(cpumaskStr = virBitmapFormat(cpumask)))
goto cleanup;
for (tmpmask = cpumaskStr; tmpmask; tmpmask = next) {
if ((next = strchr(tmpmask, ',')))
*(next++) = '\0';
virBufferAddLit(&buf, ",cpus=");
virBufferAdd(&buf, tmpmask, -1);
}
}
if (hmat) {
if (initiator < 0)
initiator = masterInitiator;
virBufferAsprintf(&buf, ",initiator=%zd", initiator);
}
if (needBackend)
virBufferAsprintf(&buf, ",memdev=ram-node%zu", i);
else
virBufferAsprintf(&buf, ",mem=%llu",
virDomainNumaGetNodeMemorySize(def->numa, i) / 1024);
virCommandAddArgBuffer(cmd, &buf);
}
/* If NUMA node distance is specified for at least one pair
* of nodes, we have to specify all the distances. Even
* though they might be the default ones. */
if (virDomainNumaNodesDistancesAreBeingSet(def->numa)) {
for (i = 0; i < ncells; i++) {
for (j = 0; j < ncells; j++) {
size_t distance = virDomainNumaGetNodeDistance(def->numa, i, j);
virCommandAddArg(cmd, "-numa");
virBufferAsprintf(&buf, "dist,src=%zu,dst=%zu,val=%zu", i, j, distance);
virCommandAddArgBuffer(cmd, &buf);
}
}
}
if (hmat) {
if (qemuBuildNumaHMATCommandLine(cmd, def) < 0)
goto cleanup;
/* This can't be moved into any of the loops above,
* because hmat-cache can be specified only after hmat-lb. */
for (i = 0; i < ncells; i++) {
if (qemuBuilNumaCellCache(cmd, def, i) < 0)
goto cleanup;
}
}
ret = 0;
cleanup:
if (nodeBackends) {
for (i = 0; i < ncells; i++)
virBufferFreeAndReset(&nodeBackends[i]);
VIR_FREE(nodeBackends);
}
return ret;
}
static int
qemuBuildMemoryDeviceCommandLine(virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
qemuDomainObjPrivatePtr priv)
{
size_t i;
/* memory hotplug requires NUMA to be enabled - we already checked
* that memory devices are present only when NUMA is */
for (i = 0; i < def->nmems; i++) {
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
char *dimmStr;
if (qemuBuildMemoryDimmBackendStr(&buf, def->mems[i], def, cfg, priv) < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
if (!(dimmStr = qemuBuildMemoryDeviceStr(def, def->mems[i], priv->qemuCaps)))
return -1;
virCommandAddArgList(cmd, "-device", dimmStr, NULL);
VIR_FREE(dimmStr);
}
return 0;
}
static void
qemuBuildAudioCommonArg(virBufferPtr buf,
const char *prefix,
virDomainAudioIOCommonPtr def)
{
if (def->mixingEngine)
virBufferAsprintf(buf, ",%s.mixing-engine=%s", prefix,
virTristateSwitchTypeToString(def->mixingEngine));
if (def->fixedSettings)
virBufferAsprintf(buf, ",%s.fixed-settings=%s", prefix,
virTristateSwitchTypeToString(def->fixedSettings));
if (def->voices)
virBufferAsprintf(buf, ",%s.voices=%u", prefix, def->voices);
if (def->bufferLength)
virBufferAsprintf(buf, ",%s.buffer-length=%u", prefix, def->bufferLength);
if (def->fixedSettings) {
if (def->frequency)
virBufferAsprintf(buf, ",%s.frequency=%u", prefix, def->frequency);
if (def->channels)
virBufferAsprintf(buf, ",%s.channels=%u", prefix, def->channels);
if (def->format)
virBufferAsprintf(buf, ",%s.format=%s", prefix,
virDomainAudioFormatTypeToString(def->format));
}
}
static void
qemuBuildAudioALSAArg(virBufferPtr buf,
const char *prefix,
virDomainAudioIOALSAPtr def)
{
if (def->dev)
virBufferAsprintf(buf, ",%s.dev=%s", prefix, def->dev);
}
static void
qemuBuildAudioCoreAudioArg(virBufferPtr buf,
const char *prefix,
virDomainAudioIOCoreAudioPtr def)
{
if (def->bufferCount)
virBufferAsprintf(buf, ",%s.buffer-count=%u", prefix, def->bufferCount);
}
static void
qemuBuildAudioJackArg(virBufferPtr buf,
const char *prefix,
virDomainAudioIOJackPtr def)
{
if (def->serverName)
virBufferAsprintf(buf, ",%s.server-name=%s", prefix, def->serverName);
if (def->clientName)
virBufferAsprintf(buf, ",%s.client-name=%s", prefix, def->clientName);
if (def->connectPorts)
virBufferAsprintf(buf, ",%s.connect-ports=%s", prefix, def->connectPorts);
if (def->exactName)
virBufferAsprintf(buf, ",%s.exact-name=%s", prefix,
virTristateSwitchTypeToString(def->exactName));
}
static void
qemuBuildAudioOSSArg(virBufferPtr buf,
const char *prefix,
virDomainAudioIOOSSPtr def)
{
if (def->dev)
virBufferAsprintf(buf, ",%s.dev=%s", prefix, def->dev);
if (def->bufferCount)
virBufferAsprintf(buf, ",%s.buffer-count=%u", prefix, def->bufferCount);
if (def->tryPoll)
virBufferAsprintf(buf, ",%s.try-poll=%s", prefix,
virTristateSwitchTypeToString(def->tryPoll));
}
static void
qemuBuildAudioPulseAudioArg(virBufferPtr buf,
const char *prefix,
virDomainAudioIOPulseAudioPtr def)
{
if (def->name)
virBufferAsprintf(buf, ",%s.name=%s", prefix, def->name);
if (def->streamName)
virBufferAsprintf(buf, ",%s.stream-name=%s", prefix, def->streamName);
if (def->latency)
virBufferAsprintf(buf, ",%s.latency=%u", prefix, def->latency);
}
static void
qemuBuildAudioSDLArg(virBufferPtr buf,
const char *prefix,
virDomainAudioIOSDLPtr def)
{
if (def->bufferCount)
virBufferAsprintf(buf, ",%s.buffer-count=%u", prefix, def->bufferCount);
}
static int
qemuBuildAudioCommandLineArg(virCommandPtr cmd,
virDomainAudioDefPtr def)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virCommandAddArg(cmd, "-audiodev");
virBufferAsprintf(&buf, "id=audio%d,driver=%s",
def->id,
qemuAudioDriverTypeToString(def->type));
qemuBuildAudioCommonArg(&buf, "in", &def->input);
qemuBuildAudioCommonArg(&buf, "out", &def->output);
switch ((virDomainAudioType)def->type) {
case VIR_DOMAIN_AUDIO_TYPE_NONE:
break;
case VIR_DOMAIN_AUDIO_TYPE_ALSA:
qemuBuildAudioALSAArg(&buf, "in", &def->backend.alsa.input);
qemuBuildAudioALSAArg(&buf, "out", &def->backend.alsa.output);
break;
case VIR_DOMAIN_AUDIO_TYPE_COREAUDIO:
qemuBuildAudioCoreAudioArg(&buf, "in", &def->backend.coreaudio.input);
qemuBuildAudioCoreAudioArg(&buf, "out", &def->backend.coreaudio.output);
break;
case VIR_DOMAIN_AUDIO_TYPE_JACK:
qemuBuildAudioJackArg(&buf, "in", &def->backend.jack.input);
qemuBuildAudioJackArg(&buf, "out", &def->backend.jack.output);
break;
case VIR_DOMAIN_AUDIO_TYPE_OSS:
qemuBuildAudioOSSArg(&buf, "in", &def->backend.oss.input);
qemuBuildAudioOSSArg(&buf, "out", &def->backend.oss.output);
if (def->backend.oss.tryMMap)
virBufferAsprintf(&buf, ",try-mmap=%s",
virTristateSwitchTypeToString(def->backend.oss.tryMMap));
if (def->backend.oss.exclusive)
virBufferAsprintf(&buf, ",exclusive=%s",
virTristateSwitchTypeToString(def->backend.oss.exclusive));
if (def->backend.oss.dspPolicySet)
virBufferAsprintf(&buf, ",dsp-policy=%d", def->backend.oss.dspPolicy);
break;
case VIR_DOMAIN_AUDIO_TYPE_PULSEAUDIO:
qemuBuildAudioPulseAudioArg(&buf, "in", &def->backend.pulseaudio.input);
qemuBuildAudioPulseAudioArg(&buf, "out", &def->backend.pulseaudio.output);
if (def->backend.pulseaudio.serverName)
virBufferAsprintf(&buf, ",server=%s", def->backend.pulseaudio.serverName);
break;
case VIR_DOMAIN_AUDIO_TYPE_SDL:
qemuBuildAudioSDLArg(&buf, "in", &def->backend.sdl.input);
qemuBuildAudioSDLArg(&buf, "out", &def->backend.sdl.output);
if (def->backend.sdl.driver) {
/*
* Some SDL audio driver names are different on SDL 1.2
* vs 2.0. Given how old SDL 1.2 is, we're not going
* make any attempt to support it here as it is unlikely
* to have an real world users. We can assume libvirt
* driver name strings match SDL 2.0 names.
*/
virCommandAddEnvPair(cmd, "SDL_AUDIODRIVER",
virDomainAudioSDLDriverTypeToString(
def->backend.sdl.driver));
}
break;
case VIR_DOMAIN_AUDIO_TYPE_SPICE:
break;
case VIR_DOMAIN_AUDIO_TYPE_FILE:
if (def->backend.file.path)
virBufferEscapeString(&buf, ",path=%s", def->backend.file.path);
break;
case VIR_DOMAIN_AUDIO_TYPE_LAST:
default:
virReportEnumRangeError(virDomainAudioType, def->type);
return -1;
}
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static int
qemuBuildAudioCommandLineArgs(virCommandPtr cmd,
virDomainDefPtr def)
{
size_t i;
for (i = 0; i < def->naudios; i++) {
if (qemuBuildAudioCommandLineArg(cmd, def->audios[i]) < 0)
return -1;
}
return 0;
}
static void
qemuBuildAudioCommonEnv(virCommandPtr cmd,
const char *prefix,
virDomainAudioIOCommonPtr def)
{
if (def->fixedSettings)
virCommandAddEnvFormat(cmd, "%sFIXED_SETTINGS=%s",
prefix,
virTristateSwitchTypeToString(def->fixedSettings));
if (def->voices)
virCommandAddEnvFormat(cmd, "%sVOICES=%u",
prefix, def->voices);
if (def->fixedSettings) {
if (def->frequency)
virCommandAddEnvFormat(cmd, "%sFIXED_FREQ=%u",
prefix, def->frequency);
if (def->channels)
virCommandAddEnvFormat(cmd, "%sFIXED_CHANNELS=%u",
prefix, def->channels);
if (def->format)
virCommandAddEnvFormat(cmd, "%sFIXED_FMT=%s",
prefix,
virDomainAudioFormatTypeToString(def->format));
}
}
static void
qemuBuildAudioALSAEnv(virCommandPtr cmd,
const char *prefix,
virDomainAudioIOALSAPtr def)
{
if (def->dev)
virCommandAddEnvFormat(cmd, "%sDEV=%s",
prefix, def->dev);
}
static void
qemuBuildAudioCoreAudioEnv(virCommandPtr cmd,
virDomainAudioDefPtr def)
{
if (def->backend.coreaudio.output.bufferCount)
virCommandAddEnvFormat(cmd, "QEMU_COREAUDIO_BUFFER_COUNT=%u",
def->backend.coreaudio.output.bufferCount);
if (def->output.bufferLength)
virCommandAddEnvFormat(cmd, "QEMU_COREAUDIO_BUFFER_SIZE=%u",
def->output.bufferLength);
}
static void
qemuBuildAudioOSSEnv(virCommandPtr cmd,
const char *prefix,
const char *prefix2,
virDomainAudioIOOSSPtr def)
{
if (def->dev)
virCommandAddEnvFormat(cmd, "%sDEV=%s",
prefix, def->dev);
if (def->tryPoll)
virCommandAddEnvFormat(cmd, "%sTRY_POLL=%s", prefix2,
virTristateSwitchTypeToString(def->tryPoll));
}
static void
qemuBuildAudioPulseAudioEnv(virCommandPtr cmd,
virDomainAudioDefPtr def)
{
if (def->backend.pulseaudio.input.name)
virCommandAddEnvPair(cmd, "QEMU_PA_SOURCE",
def->backend.pulseaudio.input.name);
if (def->backend.pulseaudio.output.name)
virCommandAddEnvPair(cmd, "QEMU_PA_SINK",
def->backend.pulseaudio.output.name);
if (def->input.bufferLength)
virCommandAddEnvFormat(cmd, "QEMU_PA_SAMPLES=%u",
def->input.bufferLength);
if (def->backend.pulseaudio.serverName)
virCommandAddEnvPair(cmd, "QEMU_PA_SERVER=%s",
def->backend.pulseaudio.serverName);
}
static int
qemuBuildAudioCommandLineEnv(virCommandPtr cmd,
virDomainDefPtr def)
{
virDomainAudioDefPtr audio;
if (def->naudios != 1)
return 0;
audio = def->audios[0];
virCommandAddEnvPair(cmd, "QEMU_AUDIO_DRV",
qemuAudioDriverTypeToString(audio->type));
qemuBuildAudioCommonEnv(cmd, "QEMU_AUDIO_ADC_", &audio->input);
qemuBuildAudioCommonEnv(cmd, "QEMU_AUDIO_DAC_", &audio->output);
switch ((virDomainAudioType)audio->type) {
case VIR_DOMAIN_AUDIO_TYPE_NONE:
break;
case VIR_DOMAIN_AUDIO_TYPE_ALSA:
qemuBuildAudioALSAEnv(cmd, "QEMU_AUDIO_ADC_", &audio->backend.alsa.input);
qemuBuildAudioALSAEnv(cmd, "QEMU_AUDIO_DAC_", &audio->backend.alsa.output);
break;
case VIR_DOMAIN_AUDIO_TYPE_COREAUDIO:
qemuBuildAudioCoreAudioEnv(cmd, audio);
break;
case VIR_DOMAIN_AUDIO_TYPE_JACK:
break;
case VIR_DOMAIN_AUDIO_TYPE_OSS:
qemuBuildAudioOSSEnv(cmd, "QEMU_OSS_ADC_", "QEMU_AUDIO_ADC_",
&audio->backend.oss.input);
qemuBuildAudioOSSEnv(cmd, "QEMU_OSS_DAC_", "QEMU_AUDIO_DAC_",
&audio->backend.oss.output);
if (audio->backend.oss.input.bufferCount)
virCommandAddEnvFormat(cmd, "QEMU_OSS_NFRAGS=%u",
audio->backend.oss.input.bufferCount);
if (audio->backend.oss.tryMMap)
virCommandAddEnvFormat(cmd, "QEMU_OSS_MMAP=%s",
virTristateSwitchTypeToString(audio->backend.oss.tryMMap));
if (audio->backend.oss.exclusive)
virCommandAddEnvFormat(cmd, "QEMU_OSS_EXCLUSIVE=%s",
virTristateSwitchTypeToString(audio->backend.oss.exclusive));
if (audio->backend.oss.dspPolicySet)
virCommandAddEnvFormat(cmd, "QEMU_OSS_POLICY=%d",
audio->backend.oss.dspPolicy);
break;
case VIR_DOMAIN_AUDIO_TYPE_PULSEAUDIO:
qemuBuildAudioPulseAudioEnv(cmd, audio);
break;
case VIR_DOMAIN_AUDIO_TYPE_SDL:
if (audio->output.bufferLength)
virCommandAddEnvFormat(cmd, "QEMU_SDL_SAMPLES=%u",
audio->output.bufferLength);
if (audio->backend.sdl.driver) {
/*
* Some SDL audio driver names are different on SDL 1.2
* vs 2.0. Given how old SDL 1.2 is, we're not going
* make any attempt to support it here as it is unlikely
* to have an real world users. We can assume libvirt
* driver name strings match SDL 2.0 names.
*/
virCommandAddEnvPair(cmd, "SDL_AUDIODRIVER",
virDomainAudioSDLDriverTypeToString(
audio->backend.sdl.driver));
}
break;
case VIR_DOMAIN_AUDIO_TYPE_SPICE:
break;
case VIR_DOMAIN_AUDIO_TYPE_FILE:
if (audio->backend.file.path)
virCommandAddEnvFormat(cmd, "QEMU_WAV_PATH=%s",
audio->backend.file.path);
break;
case VIR_DOMAIN_AUDIO_TYPE_LAST:
default:
virReportEnumRangeError(virDomainAudioType, audio->type);
return -1;
}
return 0;
}
static int
qemuBuildAudioCommandLine(virCommandPtr cmd,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps)
{
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_AUDIODEV))
return qemuBuildAudioCommandLineArgs(cmd, def);
else
return qemuBuildAudioCommandLineEnv(cmd, def);
}
static int
qemuBuildGraphicsSDLCommandLine(virQEMUDriverConfigPtr cfg G_GNUC_UNUSED,
virCommandPtr cmd,
virQEMUCapsPtr qemuCaps G_GNUC_UNUSED,
virDomainGraphicsDefPtr graphics)
{
g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER;
if (graphics->data.sdl.xauth)
virCommandAddEnvPair(cmd, "XAUTHORITY", graphics->data.sdl.xauth);
if (graphics->data.sdl.display)
virCommandAddEnvPair(cmd, "DISPLAY", graphics->data.sdl.display);
if (graphics->data.sdl.fullscreen)
virCommandAddArg(cmd, "-full-screen");
virCommandAddArg(cmd, "-display");
virBufferAddLit(&opt, "sdl");
if (graphics->data.sdl.gl != VIR_TRISTATE_BOOL_ABSENT)
virBufferAsprintf(&opt, ",gl=%s",
virTristateSwitchTypeToString(graphics->data.sdl.gl));
virCommandAddArgBuffer(cmd, &opt);
return 0;
}
static int
qemuBuildGraphicsVNCCommandLine(virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virCommandPtr cmd,
virQEMUCapsPtr qemuCaps,
virDomainGraphicsDefPtr graphics)
{
g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER;
virDomainGraphicsListenDefPtr glisten = NULL;
bool escapeAddr;
if (!(glisten = virDomainGraphicsGetListen(graphics, 0))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing listen element"));
return -1;
}
switch (glisten->type) {
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET:
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC_MULTI_SERVERS))
virBufferAddLit(&opt, "vnc=unix:");
else
virBufferAddLit(&opt, "unix:");
virQEMUBuildBufferEscapeComma(&opt, glisten->socket);
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS:
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NETWORK:
if (!graphics->data.vnc.autoport &&
(graphics->data.vnc.port < 5900 ||
graphics->data.vnc.port > 65535)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("vnc port must be in range [5900,65535]"));
return -1;
}
if (glisten->address) {
escapeAddr = strchr(glisten->address, ':') != NULL;
if (escapeAddr)
virBufferAsprintf(&opt, "[%s]", glisten->address);
else
virBufferAdd(&opt, glisten->address, -1);
}
virBufferAsprintf(&opt, ":%d",
graphics->data.vnc.port - 5900);
if (graphics->data.vnc.websocket)
virBufferAsprintf(&opt, ",websocket=%d", graphics->data.vnc.websocket);
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE:
virBufferAddLit(&opt, "none");
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_LAST:
break;
}
if (graphics->data.vnc.sharePolicy) {
virBufferAsprintf(&opt, ",share=%s",
virDomainGraphicsVNCSharePolicyTypeToString(
graphics->data.vnc.sharePolicy));
}
if (graphics->data.vnc.auth.passwd || cfg->vncPassword) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC_OPTS))
virBufferAddLit(&opt, ",password=on");
else
virBufferAddLit(&opt, ",password");
}
if (cfg->vncTLS) {
qemuDomainGraphicsPrivatePtr gfxPriv = QEMU_DOMAIN_GRAPHICS_PRIVATE(graphics);
if (gfxPriv->tlsAlias) {
const char *secretAlias = NULL;
if (gfxPriv->secinfo) {
if (qemuBuildObjectSecretCommandLine(cmd,
gfxPriv->secinfo,
qemuCaps) < 0)
return -1;
secretAlias = gfxPriv->secinfo->s.aes.alias;
}
if (qemuBuildTLSx509CommandLine(cmd,
cfg->vncTLSx509certdir,
true,
cfg->vncTLSx509verify,
secretAlias,
gfxPriv->tlsAlias,
qemuCaps) < 0)
return -1;
virBufferAsprintf(&opt, ",tls-creds=%s", gfxPriv->tlsAlias);
} else {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC_OPTS))
virBufferAddLit(&opt, ",tls=on");
else
virBufferAddLit(&opt, ",tls");
if (cfg->vncTLSx509verify) {
virBufferAddLit(&opt, ",x509verify=");
virQEMUBuildBufferEscapeComma(&opt, cfg->vncTLSx509certdir);
} else {
virBufferAddLit(&opt, ",x509=");
virQEMUBuildBufferEscapeComma(&opt, cfg->vncTLSx509certdir);
}
}
}
if (cfg->vncSASL) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC_OPTS))
virBufferAddLit(&opt, ",sasl=on");
else
virBufferAddLit(&opt, ",sasl");
if (cfg->vncSASLdir)
virCommandAddEnvPair(cmd, "SASL_CONF_PATH", cfg->vncSASLdir);
/* TODO: Support ACLs later */
}
if (graphics->data.vnc.powerControl != VIR_TRISTATE_BOOL_ABSENT) {
virBufferAsprintf(&opt, ",power-control=%s",
graphics->data.vnc.powerControl == VIR_TRISTATE_BOOL_YES ?
"on" : "off");
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_AUDIODEV)) {
g_autofree char *audioid = qemuGetAudioIDString(def, graphics->data.vnc.audioId);
if (!audioid)
return -1;
virBufferAsprintf(&opt, ",audiodev=%s", audioid);
}
virCommandAddArg(cmd, "-vnc");
virCommandAddArgBuffer(cmd, &opt);
if (graphics->data.vnc.keymap)
virCommandAddArgList(cmd, "-k", graphics->data.vnc.keymap, NULL);
return 0;
}
static int
qemuBuildGraphicsSPICECommandLine(virQEMUDriverConfigPtr cfg,
virCommandPtr cmd,
virDomainGraphicsDefPtr graphics)
{
g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER;
virDomainGraphicsListenDefPtr glisten = NULL;
int port = graphics->data.spice.port;
int tlsPort = graphics->data.spice.tlsPort;
size_t i;
bool hasSecure = false;
bool hasInsecure = false;
if (!(glisten = virDomainGraphicsGetListen(graphics, 0))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing listen element"));
return -1;
}
switch (glisten->type) {
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET:
virBufferAddLit(&opt, "unix,addr=");
virQEMUBuildBufferEscapeComma(&opt, glisten->socket);
virBufferAddLit(&opt, ",");
hasInsecure = true;
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS:
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NETWORK:
if (port > 0) {
virBufferAsprintf(&opt, "port=%u,", port);
hasInsecure = true;
}
if (tlsPort > 0) {
virBufferAsprintf(&opt, "tls-port=%u,", tlsPort);
hasSecure = true;
}
if (port > 0 || tlsPort > 0) {
if (glisten->address)
virBufferAsprintf(&opt, "addr=%s,", glisten->address);
}
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE:
/* QEMU requires either port or tls-port to be specified if there is no
* other argument. Use a dummy port=0. */
virBufferAddLit(&opt, "port=0,");
hasInsecure = true;
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_LAST:
break;
}
if (cfg->spiceSASL) {
virBufferAddLit(&opt, "sasl=on,");
if (cfg->spiceSASLdir)
virCommandAddEnvPair(cmd, "SASL_CONF_PATH",
cfg->spiceSASLdir);
/* TODO: Support ACLs later */
}
if (graphics->data.spice.mousemode) {
switch (graphics->data.spice.mousemode) {
case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_SERVER:
virBufferAddLit(&opt, "agent-mouse=off,");
break;
case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_CLIENT:
virBufferAddLit(&opt, "agent-mouse=on,");
break;
case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_DEFAULT:
break;
case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_LAST:
default:
virReportEnumRangeError(virDomainGraphicsSpiceMouseMode,
graphics->data.spice.mousemode);
return -1;
}
}
/* In the password case we set it via monitor command, to avoid
* making it visible on CLI, so there's no use of password=XXX
* in this bit of the code */
if (!graphics->data.spice.auth.passwd &&
!cfg->spicePassword)
virBufferAddLit(&opt, "disable-ticketing=on,");
if (hasSecure) {
virBufferAddLit(&opt, "x509-dir=");
virQEMUBuildBufferEscapeComma(&opt, cfg->spiceTLSx509certdir);
virBufferAddLit(&opt, ",");
}
switch (graphics->data.spice.defaultMode) {
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_SECURE:
if (!hasSecure) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice defaultMode secure requested in XML "
"configuration, but TLS connection is not "
"available"));
return -1;
}
virBufferAddLit(&opt, "tls-channel=default,");
break;
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_INSECURE:
if (!hasInsecure) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice defaultMode insecure requested in XML "
"configuration, but plaintext connection is not "
"available"));
return -1;
}
virBufferAddLit(&opt, "plaintext-channel=default,");
break;
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_ANY:
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_LAST:
/* nothing */
break;
}
for (i = 0; i < VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_LAST; i++) {
switch (graphics->data.spice.channels[i]) {
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_SECURE:
if (!hasSecure) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice secure channels set in XML "
"configuration, but TLS connection is not "
"available"));
return -1;
}
virBufferAsprintf(&opt, "tls-channel=%s,",
virDomainGraphicsSpiceChannelNameTypeToString(i));
break;
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_INSECURE:
if (!hasInsecure) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice insecure channels set in XML "
"configuration, but plaintext connection "
"is not available"));
return -1;
}
virBufferAsprintf(&opt, "plaintext-channel=%s,",
virDomainGraphicsSpiceChannelNameTypeToString(i));
break;
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_ANY:
break;
}
}
if (graphics->data.spice.image)
virBufferAsprintf(&opt, "image-compression=%s,",
virDomainGraphicsSpiceImageCompressionTypeToString(graphics->data.spice.image));
if (graphics->data.spice.jpeg)
virBufferAsprintf(&opt, "jpeg-wan-compression=%s,",
virDomainGraphicsSpiceJpegCompressionTypeToString(graphics->data.spice.jpeg));
if (graphics->data.spice.zlib)
virBufferAsprintf(&opt, "zlib-glz-wan-compression=%s,",
virDomainGraphicsSpiceZlibCompressionTypeToString(graphics->data.spice.zlib));
if (graphics->data.spice.playback)
virBufferAsprintf(&opt, "playback-compression=%s,",
virTristateSwitchTypeToString(graphics->data.spice.playback));
if (graphics->data.spice.streaming)
virBufferAsprintf(&opt, "streaming-video=%s,",
virDomainGraphicsSpiceStreamingModeTypeToString(graphics->data.spice.streaming));
if (graphics->data.spice.copypaste == VIR_TRISTATE_BOOL_NO)
virBufferAddLit(&opt, "disable-copy-paste=on,");
if (graphics->data.spice.filetransfer == VIR_TRISTATE_BOOL_NO)
virBufferAddLit(&opt, "disable-agent-file-xfer=on,");
if (graphics->data.spice.gl == VIR_TRISTATE_BOOL_YES) {
/* spice.gl is a TristateBool, but qemu expects on/off: use
* TristateSwitch helper */
virBufferAsprintf(&opt, "gl=%s,",
virTristateSwitchTypeToString(graphics->data.spice.gl));
if (graphics->data.spice.rendernode) {
virBufferAddLit(&opt, "rendernode=");
virQEMUBuildBufferEscapeComma(&opt, graphics->data.spice.rendernode);
virBufferAddLit(&opt, ",");
}
}
/* Turn on seamless migration unconditionally. If migration destination
* doesn't support it, it fallbacks to previous migration algorithm silently. */
virBufferAddLit(&opt, "seamless-migration=on,");
virBufferTrim(&opt, ",");
virCommandAddArg(cmd, "-spice");
virCommandAddArgBuffer(cmd, &opt);
if (graphics->data.spice.keymap)
virCommandAddArgList(cmd, "-k",
graphics->data.spice.keymap, NULL);
return 0;
}
static int
qemuBuildGraphicsEGLHeadlessCommandLine(virQEMUDriverConfigPtr cfg G_GNUC_UNUSED,
virCommandPtr cmd,
virDomainGraphicsDefPtr graphics)
{
g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER;
virBufferAddLit(&opt, "egl-headless");
if (graphics->data.egl_headless.rendernode) {
virBufferAddLit(&opt, ",rendernode=");
virQEMUBuildBufferEscapeComma(&opt,
graphics->data.egl_headless.rendernode);
}
virCommandAddArg(cmd, "-display");
virCommandAddArgBuffer(cmd, &opt);
return 0;
}
static int
qemuBuildGraphicsCommandLine(virQEMUDriverConfigPtr cfg,
virCommandPtr cmd,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->ngraphics; i++) {
virDomainGraphicsDefPtr graphics = def->graphics[i];
switch (graphics->type) {
case VIR_DOMAIN_GRAPHICS_TYPE_SDL:
if (qemuBuildGraphicsSDLCommandLine(cfg, cmd,
qemuCaps, graphics) < 0)
return -1;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_VNC:
if (qemuBuildGraphicsVNCCommandLine(cfg, def, cmd,
qemuCaps, graphics) < 0)
return -1;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_SPICE:
if (qemuBuildGraphicsSPICECommandLine(cfg, cmd,
graphics) < 0)
return -1;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS:
if (qemuBuildGraphicsEGLHeadlessCommandLine(cfg, cmd,
graphics) < 0)
return -1;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_RDP:
case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP:
return -1;
case VIR_DOMAIN_GRAPHICS_TYPE_LAST:
default:
virReportEnumRangeError(virDomainGraphicsType, graphics->type);
return -1;
}
}
return 0;
}
static int
qemuInterfaceVhostuserConnect(virQEMUDriverPtr driver,
virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virDomainDefPtr def,
virDomainNetDefPtr net,
virQEMUCapsPtr qemuCaps,
char **chardev)
{
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
switch ((virDomainChrType)net->data.vhostuser->type) {
case VIR_DOMAIN_CHR_TYPE_UNIX:
if (!(*chardev = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
net->data.vhostuser,
net->info.alias, qemuCaps, 0)))
return -1;
break;
case VIR_DOMAIN_CHR_TYPE_NULL:
case VIR_DOMAIN_CHR_TYPE_VC:
case VIR_DOMAIN_CHR_TYPE_PTY:
case VIR_DOMAIN_CHR_TYPE_DEV:
case VIR_DOMAIN_CHR_TYPE_FILE:
case VIR_DOMAIN_CHR_TYPE_PIPE:
case VIR_DOMAIN_CHR_TYPE_STDIO:
case VIR_DOMAIN_CHR_TYPE_UDP:
case VIR_DOMAIN_CHR_TYPE_TCP:
case VIR_DOMAIN_CHR_TYPE_SPICEVMC:
case VIR_DOMAIN_CHR_TYPE_SPICEPORT:
case VIR_DOMAIN_CHR_TYPE_NMDM:
case VIR_DOMAIN_CHR_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("vhost-user type '%s' not supported"),
virDomainChrTypeToString(net->data.vhostuser->type));
return -1;
}
return 0;
}
static int
qemuBuildInterfaceCommandLine(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virDomainNetDefPtr net,
virQEMUCapsPtr qemuCaps,
unsigned int bootindex,
virNetDevVPortProfileOp vmop,
bool standalone,
size_t *nnicindexes,
int **nicindexes,
unsigned int flags)
{
virDomainDefPtr def = vm->def;
int ret = -1;
g_autofree char *nic = NULL;
g_autofree char *host = NULL;
g_autofree char *chardev = NULL;
int *tapfd = NULL;
size_t tapfdSize = 0;
int *vhostfd = NULL;
size_t vhostfdSize = 0;
char **tapfdName = NULL;
char **vhostfdName = NULL;
g_autofree char *slirpfdName = NULL;
g_autofree char *vdpafdName = NULL;
int vdpafd = -1;
virDomainNetType actualType = virDomainNetGetActualType(net);
const virNetDevBandwidth *actualBandwidth;
bool requireNicdev = false;
qemuSlirpPtr slirp;
size_t i;
g_autoptr(virJSONValue) hostnetprops = NULL;
if (!bootindex)
bootindex = net->info.bootIndex;
if (qemuDomainValidateActualNetDef(net, qemuCaps) < 0)
return -1;
switch (actualType) {
case VIR_DOMAIN_NET_TYPE_NETWORK:
case VIR_DOMAIN_NET_TYPE_BRIDGE:
tapfdSize = net->driver.virtio.queues;
if (!tapfdSize)
tapfdSize = 1;
tapfd = g_new0(int, tapfdSize);
tapfdName = g_new0(char *, tapfdSize);
memset(tapfd, -1, tapfdSize * sizeof(tapfd[0]));
if (qemuInterfaceBridgeConnect(def, driver, net,
tapfd, &tapfdSize) < 0)
goto cleanup;
break;
case VIR_DOMAIN_NET_TYPE_DIRECT:
tapfdSize = net->driver.virtio.queues;
if (!tapfdSize)
tapfdSize = 1;
tapfd = g_new0(int, tapfdSize);
tapfdName = g_new0(char *, tapfdSize);
memset(tapfd, -1, tapfdSize * sizeof(tapfd[0]));
if (qemuInterfaceDirectConnect(def, driver, net,
tapfd, tapfdSize, vmop) < 0)
goto cleanup;
break;
case VIR_DOMAIN_NET_TYPE_ETHERNET:
tapfdSize = net->driver.virtio.queues;
if (!tapfdSize)
tapfdSize = 1;
tapfd = g_new0(int, tapfdSize);
tapfdName = g_new0(char *, tapfdSize);
memset(tapfd, -1, tapfdSize * sizeof(tapfd[0]));
if (qemuInterfaceEthernetConnect(def, driver, net,
tapfd, tapfdSize) < 0)
goto cleanup;
break;
case VIR_DOMAIN_NET_TYPE_HOSTDEV:
/* NET_TYPE_HOSTDEV devices are really hostdev devices, so
* their commandlines are constructed with other hostdevs.
*/
ret = 0;
goto cleanup;
break;
case VIR_DOMAIN_NET_TYPE_VHOSTUSER:
requireNicdev = true;
if (qemuInterfaceVhostuserConnect(driver, logManager, secManager,
cmd, def, net, qemuCaps, &chardev) < 0)
goto cleanup;
if (virNetDevOpenvswitchGetVhostuserIfname(net->data.vhostuser->data.nix.path,
net->data.vhostuser->data.nix.listen,
&net->ifname) < 0)
goto cleanup;
break;
case VIR_DOMAIN_NET_TYPE_VDPA:
if ((vdpafd = qemuInterfaceVDPAConnect(net)) < 0)
goto cleanup;
break;
case VIR_DOMAIN_NET_TYPE_USER:
case VIR_DOMAIN_NET_TYPE_SERVER:
case VIR_DOMAIN_NET_TYPE_CLIENT:
case VIR_DOMAIN_NET_TYPE_MCAST:
case VIR_DOMAIN_NET_TYPE_INTERNAL:
case VIR_DOMAIN_NET_TYPE_UDP:
case VIR_DOMAIN_NET_TYPE_LAST:
/* nada */
break;
}
/* For types whose implementations use a netdev on the host, add
* an entry to nicindexes for passing on to systemd.
*/
switch ((virDomainNetType)actualType) {
case VIR_DOMAIN_NET_TYPE_ETHERNET:
case VIR_DOMAIN_NET_TYPE_NETWORK:
case VIR_DOMAIN_NET_TYPE_BRIDGE:
case VIR_DOMAIN_NET_TYPE_DIRECT:
{
int nicindex;
/* network and bridge use a tap device, and direct uses a
* macvtap device
*/
if (driver->privileged && nicindexes && nnicindexes &&
net->ifname) {
if (virNetDevGetIndex(net->ifname, &nicindex) < 0 ||
VIR_APPEND_ELEMENT(*nicindexes, *nnicindexes, nicindex) < 0)
goto cleanup;
}
break;
}
case VIR_DOMAIN_NET_TYPE_USER:
case VIR_DOMAIN_NET_TYPE_VHOSTUSER:
case VIR_DOMAIN_NET_TYPE_SERVER:
case VIR_DOMAIN_NET_TYPE_CLIENT:
case VIR_DOMAIN_NET_TYPE_MCAST:
case VIR_DOMAIN_NET_TYPE_UDP:
case VIR_DOMAIN_NET_TYPE_INTERNAL:
case VIR_DOMAIN_NET_TYPE_HOSTDEV:
case VIR_DOMAIN_NET_TYPE_VDPA:
case VIR_DOMAIN_NET_TYPE_LAST:
/* These types don't use a network device on the host, but
* instead use some other type of connection to the emulated
* device in the qemu process.
*
* (Note that hostdev can't be considered as "using a network
* device", because by the time it is being used, it has been
* detached from the hostside network driver so it doesn't show
* up in the list of interfaces on the host - it's just some
* PCI device.)
*/
break;
}
qemuDomainInterfaceSetDefaultQDisc(driver, net);
/* Set bandwidth or warn if requested and not supported. */
actualBandwidth = virDomainNetGetActualBandwidth(net);
if (actualBandwidth) {
if (virNetDevSupportsBandwidth(actualType)) {
if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false,
!virDomainNetTypeSharesHostView(net)) < 0)
goto cleanup;
} else {
VIR_WARN("setting bandwidth on interfaces of "
"type '%s' is not implemented yet",
virDomainNetTypeToString(actualType));
}
}
if (net->mtu && net->managed_tap != VIR_TRISTATE_BOOL_NO &&
virNetDevSetMTU(net->ifname, net->mtu) < 0)
goto cleanup;
if ((actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
actualType == VIR_DOMAIN_NET_TYPE_ETHERNET ||
actualType == VIR_DOMAIN_NET_TYPE_DIRECT) &&
!standalone) {
/* Attempt to use vhost-net mode for these types of
network device */
vhostfdSize = net->driver.virtio.queues;
if (!vhostfdSize)
vhostfdSize = 1;
vhostfd = g_new0(int, vhostfdSize);
vhostfdName = g_new0(char *, vhostfdSize);
memset(vhostfd, -1, vhostfdSize * sizeof(vhostfd[0]));
if (qemuInterfaceOpenVhostNet(def, net, vhostfd, &vhostfdSize) < 0)
goto cleanup;
}
slirp = QEMU_DOMAIN_NETWORK_PRIVATE(net)->slirp;
if (slirp && !standalone) {
int slirpfd = qemuSlirpGetFD(slirp);
virCommandPassFD(cmd, slirpfd,
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
slirpfdName = g_strdup_printf("%d", slirpfd);
}
for (i = 0; i < tapfdSize; i++) {
if (qemuSecuritySetTapFDLabel(driver->securityManager,
def, tapfd[i]) < 0)
goto cleanup;
tapfdName[i] = g_strdup_printf("%d", tapfd[i]);
virCommandPassFD(cmd, tapfd[i],
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
tapfd[i] = -1;
}
for (i = 0; i < vhostfdSize; i++) {
vhostfdName[i] = g_strdup_printf("%d", vhostfd[i]);
virCommandPassFD(cmd, vhostfd[i],
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
vhostfd[i] = -1;
}
if (vdpafd > 0) {
g_autofree char *fdset = NULL;
g_autofree char *addfdarg = NULL;
size_t idx;
virCommandPassFDIndex(cmd, vdpafd, VIR_COMMAND_PASS_FD_CLOSE_PARENT, &idx);
fdset = qemuBuildFDSet(vdpafd, idx);
vdpafdName = g_strdup_printf("/dev/fdset/%zu", idx);
/* set opaque to the devicepath so that we can look up the fdset later
* if necessary */
addfdarg = g_strdup_printf("%s,opaque=%s", fdset,
net->data.vdpa.devicepath);
virCommandAddArgList(cmd, "-add-fd", addfdarg, NULL);
vdpafd = -1;
}
if (chardev)
virCommandAddArgList(cmd, "-chardev", chardev, NULL);
if (!(hostnetprops = qemuBuildHostNetStr(net,
tapfdName, tapfdSize,
vhostfdName, vhostfdSize,
slirpfdName, vdpafdName)))
goto cleanup;
if (!(host = virQEMUBuildNetdevCommandlineFromJSON(hostnetprops,
(flags & QEMU_BUILD_COMMANDLINE_VALIDATE_KEEP_JSON))))
goto cleanup;
virCommandAddArgList(cmd, "-netdev", host, NULL);
/* Possible combinations:
*
* Old way: -netdev type=tap,id=netdev1 \
* -net nic,model=e1000,netdev=netdev1
* New way: -netdev type=tap,id=netdev1 -device e1000,id=netdev1
*/
if (qemuDomainSupportsNicdev(def, net)) {
if (qemuCommandAddExtDevice(cmd, &net->info) < 0)
goto cleanup;
if (!(nic = qemuBuildNicDevStr(def, net, bootindex,
net->driver.virtio.queues, qemuCaps)))
goto cleanup;
virCommandAddArgList(cmd, "-device", nic, NULL);
} else if (!requireNicdev) {
if (qemuCommandAddExtDevice(cmd, &net->info) < 0)
goto cleanup;
if (!(nic = qemuBuildLegacyNicStr(net)))
goto cleanup;
virCommandAddArgList(cmd, "-net", nic, NULL);
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("Nicdev support unavailable"));
goto cleanup;
}
ret = 0;
cleanup:
if (ret < 0) {
virErrorPtr saved_err;
virErrorPreserveLast(&saved_err);
virDomainConfNWFilterTeardown(net);
virErrorRestore(&saved_err);
}
for (i = 0; vhostfd && i < vhostfdSize; i++) {
if (ret < 0)
VIR_FORCE_CLOSE(vhostfd[i]);
if (vhostfdName)
VIR_FREE(vhostfdName[i]);
}
VIR_FREE(vhostfdName);
for (i = 0; tapfd && i < tapfdSize; i++) {
if (ret < 0)
VIR_FORCE_CLOSE(tapfd[i]);
if (tapfdName)
VIR_FREE(tapfdName[i]);
}
VIR_FREE(tapfdName);
VIR_FREE(vhostfd);
VIR_FREE(tapfd);
VIR_FORCE_CLOSE(vdpafd);
return ret;
}
/* NOTE: Not using const virDomainDef here since eventually a call is made
* into qemuSecuritySetTapFDLabel which calls it's driver
* API domainSetSecurityTapFDLabel that doesn't use the const format.
*/
static int
qemuBuildNetCommandLine(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUCapsPtr qemuCaps,
virNetDevVPortProfileOp vmop,
bool standalone,
size_t *nnicindexes,
int **nicindexes,
unsigned int *bootHostdevNet,
unsigned int flags)
{
size_t i;
int last_good_net = -1;
virErrorPtr originalError = NULL;
virDomainDefPtr def = vm->def;
if (def->nnets) {
unsigned int bootNet = 0;
/* convert to bootindex since we didn't emit -boot n */
for (i = 0; i < def->os.nBootDevs; i++) {
if (def->os.bootDevs[i] == VIR_DOMAIN_BOOT_NET) {
bootNet = i + 1;
break;
}
}
for (i = 0; i < def->nnets; i++) {
virDomainNetDefPtr net = def->nets[i];
if (qemuBuildInterfaceCommandLine(driver, vm, logManager, secManager, cmd, net,
qemuCaps, bootNet, vmop,
standalone, nnicindexes,
nicindexes, flags) < 0)
goto error;
last_good_net = i;
/* if this interface is a type='hostdev' interface and we
* haven't yet added a "bootindex" parameter to an
* emulated network device, save the bootindex - hostdev
* interface commandlines will be built later on when we
* cycle through all the hostdevs, and we'll use it then.
*/
if (virDomainNetGetActualType(net) == VIR_DOMAIN_NET_TYPE_HOSTDEV &&
*bootHostdevNet == 0) {
*bootHostdevNet = bootNet;
}
bootNet = 0;
}
}
return 0;
error:
/* free up any resources in the network driver
* but don't overwrite the original error */
virErrorPreserveLast(&originalError);
for (i = 0; last_good_net != -1 && i <= last_good_net; i++)
virDomainConfNWFilterTeardown(def->nets[i]);
virErrorRestore(&originalError);
return -1;
}
static const char *
qemuBuildSmartcardFindCCIDController(const virDomainDef *def,
const virDomainSmartcardDef *smartcard)
{
size_t i;
/* Should never happen. But doesn't hurt to check. */
if (smartcard->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCID)
return NULL;
for (i = 0; i < def->ncontrollers; i++) {
const virDomainControllerDef *tmp = def->controllers[i];
if (tmp->type != VIR_DOMAIN_CONTROLLER_TYPE_CCID)
continue;
if (tmp->idx != smartcard->info.addr.ccid.controller)
continue;
return tmp->info.alias;
}
return NULL;
}
static int
qemuBuildSmartcardCommandLine(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
bool chardevStdioLogd)
{
size_t i;
virDomainSmartcardDefPtr smartcard;
g_autofree char *devstr = NULL;
g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER;
const char *database;
const char *contAlias = NULL;
unsigned int cdevflags = QEMU_BUILD_CHARDEV_TCP_NOWAIT |
QEMU_BUILD_CHARDEV_UNIX_FD_PASS;
if (chardevStdioLogd)
cdevflags |= QEMU_BUILD_CHARDEV_FILE_LOGD;
if (!def->nsmartcards)
return 0;
smartcard = def->smartcards[0];
/* -device usb-ccid was already emitted along with other
* controllers. For now, qemu handles only one smartcard. */
if (def->nsmartcards > 1 ||
smartcard->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCID ||
smartcard->info.addr.ccid.controller != 0 ||
smartcard->info.addr.ccid.slot != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks multiple smartcard "
"support"));
return -1;
}
switch (smartcard->type) {
case VIR_DOMAIN_SMARTCARD_TYPE_HOST:
virBufferAddLit(&opt, "ccid-card-emulated,backend=nss-emulated");
break;
case VIR_DOMAIN_SMARTCARD_TYPE_HOST_CERTIFICATES:
virBufferAddLit(&opt, "ccid-card-emulated,backend=certificates");
for (i = 0; i < VIR_DOMAIN_SMARTCARD_NUM_CERTIFICATES; i++) {
virBufferAsprintf(&opt, ",cert%zu=", i + 1);
virQEMUBuildBufferEscapeComma(&opt, smartcard->data.cert.file[i]);
}
if (smartcard->data.cert.database) {
database = smartcard->data.cert.database;
} else {
database = VIR_DOMAIN_SMARTCARD_DEFAULT_DATABASE;
}
virBufferAddLit(&opt, ",db=");
virQEMUBuildBufferEscapeComma(&opt, database);
break;
case VIR_DOMAIN_SMARTCARD_TYPE_PASSTHROUGH:
if (!(devstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
smartcard->data.passthru,
smartcard->info.alias,
qemuCaps, cdevflags))) {
return -1;
}
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
virBufferAsprintf(&opt, "ccid-card-passthru,chardev=char%s",
smartcard->info.alias);
break;
default:
virReportEnumRangeError(virDomainSmartcardType, smartcard->type);
return -1;
}
if (!(contAlias = qemuBuildSmartcardFindCCIDController(def,
smartcard))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unable to find controller for %s"),
smartcard->info.alias);
return -1;
}
virCommandAddArg(cmd, "-device");
virBufferAsprintf(&opt, ",id=%s,bus=%s.0", smartcard->info.alias, contAlias);
virCommandAddArgBuffer(cmd, &opt);
return 0;
}
static char *
qemuBuildShmemDevLegacyStr(virDomainDefPtr def,
virDomainShmemDefPtr shmem,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virBufferAddLit(&buf, "ivshmem");
virBufferAsprintf(&buf, ",id=%s", shmem->info.alias);
if (shmem->size)
virBufferAsprintf(&buf, ",size=%llum", shmem->size >> 20);
if (!shmem->server.enabled) {
virBufferAsprintf(&buf, ",shm=%s", shmem->name);
} else {
virBufferAsprintf(&buf, ",chardev=char%s", shmem->info.alias);
if (shmem->msi.enabled) {
virBufferAddLit(&buf, ",msi=on");
if (shmem->msi.vectors)
virBufferAsprintf(&buf, ",vectors=%u", shmem->msi.vectors);
if (shmem->msi.ioeventfd)
virBufferAsprintf(&buf, ",ioeventfd=%s",
virTristateSwitchTypeToString(shmem->msi.ioeventfd));
}
}
if (qemuBuildDeviceAddressStr(&buf, def, &shmem->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
char *
qemuBuildShmemDevStr(virDomainDefPtr def,
virDomainShmemDefPtr shmem,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virBufferAdd(&buf, virDomainShmemModelTypeToString(shmem->model), -1);
virBufferAsprintf(&buf, ",id=%s", shmem->info.alias);
if (shmem->server.enabled) {
virBufferAsprintf(&buf, ",chardev=char%s", shmem->info.alias);
} else {
virBufferAsprintf(&buf, ",memdev=shmmem-%s", shmem->info.alias);
switch ((virDomainShmemRole) shmem->role) {
case VIR_DOMAIN_SHMEM_ROLE_MASTER:
virBufferAddLit(&buf, ",master=on");
break;
case VIR_DOMAIN_SHMEM_ROLE_PEER:
virBufferAddLit(&buf, ",master=off");
break;
case VIR_DOMAIN_SHMEM_ROLE_DEFAULT:
case VIR_DOMAIN_SHMEM_ROLE_LAST:
break;
}
}
if (shmem->msi.vectors)
virBufferAsprintf(&buf, ",vectors=%u", shmem->msi.vectors);
if (shmem->msi.ioeventfd) {
virBufferAsprintf(&buf, ",ioeventfd=%s",
virTristateSwitchTypeToString(shmem->msi.ioeventfd));
}
if (qemuBuildDeviceAddressStr(&buf, def, &shmem->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
virJSONValuePtr
qemuBuildShmemBackendMemProps(virDomainShmemDefPtr shmem)
{
g_autofree char *mem_alias = NULL;
g_autofree char *mem_path = NULL;
virJSONValuePtr ret = NULL;
mem_path = g_strdup_printf("/dev/shm/%s", shmem->name);
mem_alias = g_strdup_printf("shmmem-%s", shmem->info.alias);
qemuMonitorCreateObjectProps(&ret, "memory-backend-file", mem_alias,
"s:mem-path", mem_path,
"U:size", shmem->size,
"b:share", true,
NULL);
return ret;
}
static int
qemuBuildShmemCommandLine(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
virDomainShmemDefPtr shmem,
virQEMUCapsPtr qemuCaps,
bool chardevStdioLogd)
{
g_autoptr(virJSONValue) memProps = NULL;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autofree char *devstr = NULL;
g_autofree char *chardev = NULL;
int rc;
unsigned int cdevflags = QEMU_BUILD_CHARDEV_TCP_NOWAIT |
QEMU_BUILD_CHARDEV_UNIX_FD_PASS;
if (chardevStdioLogd)
cdevflags |= QEMU_BUILD_CHARDEV_FILE_LOGD;
if (shmem->size) {
/*
* Thanks to our parsing code, we have a guarantee that the
* size is power of two and is at least a mebibyte in size.
* But because it may change in the future, the checks are
* doubled in here.
*/
if (shmem->size & (shmem->size - 1)) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("shmem size must be a power of two"));
return -1;
}
if (shmem->size < 1024 * 1024) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("shmem size must be at least 1 MiB (1024 KiB)"));
return -1;
}
}
if (shmem->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only 'pci' addresses are supported for the "
"shared memory device"));
return -1;
}
switch ((virDomainShmemModel)shmem->model) {
case VIR_DOMAIN_SHMEM_MODEL_IVSHMEM:
devstr = qemuBuildShmemDevLegacyStr(def, shmem, qemuCaps);
break;
case VIR_DOMAIN_SHMEM_MODEL_IVSHMEM_PLAIN:
if (!(memProps = qemuBuildShmemBackendMemProps(shmem)))
return -1;
rc = qemuBuildObjectCommandlineFromJSON(&buf, memProps, qemuCaps);
if (rc < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
G_GNUC_FALLTHROUGH;
case VIR_DOMAIN_SHMEM_MODEL_IVSHMEM_DOORBELL:
devstr = qemuBuildShmemDevStr(def, shmem, qemuCaps);
break;
case VIR_DOMAIN_SHMEM_MODEL_LAST:
break;
}
if (!devstr)
return -1;
if (qemuCommandAddExtDevice(cmd, &shmem->info) < 0)
return -1;
virCommandAddArgList(cmd, "-device", devstr, NULL);
if (shmem->server.enabled) {
chardev = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
&shmem->server.chr,
shmem->info.alias, qemuCaps,
cdevflags);
if (!chardev)
return -1;
virCommandAddArgList(cmd, "-chardev", chardev, NULL);
}
return 0;
}
static virQEMUCapsFlags
qemuChrSerialTargetModelToCaps(virDomainChrSerialTargetModel targetModel)
{
switch (targetModel) {
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_ISA_SERIAL:
return QEMU_CAPS_DEVICE_ISA_SERIAL;
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_USB_SERIAL:
return QEMU_CAPS_DEVICE_USB_SERIAL;
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_PCI_SERIAL:
return QEMU_CAPS_DEVICE_PCI_SERIAL;
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_SPAPR_VTY:
return QEMU_CAPS_DEVICE_SPAPR_VTY;
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_SCLPCONSOLE:
return QEMU_CAPS_DEVICE_SCLPCONSOLE;
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_SCLPLMCONSOLE:
return QEMU_CAPS_DEVICE_SCLPLMCONSOLE;
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_PL011:
return QEMU_CAPS_DEVICE_PL011;
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_16550A:
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_NONE:
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_LAST:
break;
}
return 0;
}
static int
qemuBuildChrDeviceCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virDomainChrDefPtr chr,
virQEMUCapsPtr qemuCaps)
{
g_autofree char *devstr = NULL;
if (qemuBuildChrDeviceStr(&devstr, def, chr, qemuCaps) < 0)
return -1;
virCommandAddArgList(cmd, "-device", devstr, NULL);
return 0;
}
static bool
qemuChrIsPlatformDevice(const virDomainDef *def,
virDomainChrDefPtr chr)
{
if (def->os.arch == VIR_ARCH_ARMV6L ||
def->os.arch == VIR_ARCH_ARMV7L ||
def->os.arch == VIR_ARCH_AARCH64) {
/* pl011 (used on mach-virt) is a platform device */
if (chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL &&
chr->targetType == VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_SYSTEM &&
chr->targetModel == VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_PL011) {
return true;
}
}
if (ARCH_IS_RISCV(def->os.arch)) {
/* 16550a (used by riscv/virt guests) is a platform device */
if (chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL &&
chr->targetType == VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_SYSTEM &&
chr->targetModel == VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_16550A) {
return true;
}
}
/* If we got all the way here and we're still stuck with the default
* target type for a serial device, it means we have no clue what kind of
* device we're talking about and we must treat it as a platform device. */
if (chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL &&
chr->targetType == VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_NONE) {
return true;
}
return false;
}
static int
qemuBuildSerialCommandLine(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
bool chardevStdioLogd)
{
size_t i;
bool havespice = false;
unsigned int cdevflags = QEMU_BUILD_CHARDEV_TCP_NOWAIT |
QEMU_BUILD_CHARDEV_UNIX_FD_PASS;
if (chardevStdioLogd)
cdevflags |= QEMU_BUILD_CHARDEV_FILE_LOGD;
if (def->nserials) {
for (i = 0; i < def->ngraphics && !havespice; i++) {
if (def->graphics[i]->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE)
havespice = true;
}
}
for (i = 0; i < def->nserials; i++) {
virDomainChrDefPtr serial = def->serials[i];
g_autofree char *devstr = NULL;
if (serial->source->type == VIR_DOMAIN_CHR_TYPE_SPICEPORT && !havespice)
continue;
if (!(devstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
serial->source,
serial->info.alias,
qemuCaps, cdevflags)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
/* If the device is not a platform device, build the devstr */
if (!qemuChrIsPlatformDevice(def, serial)) {
if (qemuBuildChrDeviceCommandLine(cmd, def, serial, qemuCaps) < 0)
return -1;
} else {
virQEMUCapsFlags caps;
caps = qemuChrSerialTargetModelToCaps(serial->targetModel);
if (caps && !virQEMUCapsGet(qemuCaps, caps)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("'%s' is not supported in this QEMU binary"),
virDomainChrSerialTargetModelTypeToString(serial->targetModel));
return -1;
}
virCommandAddArg(cmd, "-serial");
virCommandAddArgFormat(cmd, "chardev:char%s", serial->info.alias);
}
}
return 0;
}
static int
qemuBuildParallelsCommandLine(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
bool chardevStdioLogd)
{
size_t i;
unsigned int cdevflags = QEMU_BUILD_CHARDEV_TCP_NOWAIT |
QEMU_BUILD_CHARDEV_UNIX_FD_PASS;
if (chardevStdioLogd)
cdevflags |= QEMU_BUILD_CHARDEV_FILE_LOGD;
for (i = 0; i < def->nparallels; i++) {
virDomainChrDefPtr parallel = def->parallels[i];
g_autofree char *devstr = NULL;
if (!(devstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
parallel->source,
parallel->info.alias,
qemuCaps, cdevflags)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
if (qemuBuildChrDeviceCommandLine(cmd, def, parallel,
qemuCaps) < 0)
return -1;
}
return 0;
}
static int
qemuBuildChannelsCommandLine(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
bool chardevStdioLogd,
unsigned int flags)
{
size_t i;
unsigned int cdevflags = QEMU_BUILD_CHARDEV_TCP_NOWAIT |
QEMU_BUILD_CHARDEV_UNIX_FD_PASS;
if (chardevStdioLogd)
cdevflags |= QEMU_BUILD_CHARDEV_FILE_LOGD;
for (i = 0; i < def->nchannels; i++) {
virDomainChrDefPtr channel = def->channels[i];
g_autofree char *chardevstr = NULL;
g_autoptr(virJSONValue) netdevprops = NULL;
g_autofree char *netdevstr = NULL;
if (!(chardevstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
channel->source,
channel->info.alias,
qemuCaps, cdevflags)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, chardevstr);
switch ((virDomainChrChannelTargetType) channel->targetType) {
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_GUESTFWD:
if (!(netdevprops = qemuBuildChannelGuestfwdNetdevProps(channel)))
return -1;
if (!(netdevstr = virQEMUBuildNetdevCommandlineFromJSON(netdevprops,
(flags & QEMU_BUILD_COMMANDLINE_VALIDATE_KEEP_JSON))))
return -1;
virCommandAddArgList(cmd, "-netdev", netdevstr, NULL);
break;
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
if (qemuBuildChrDeviceCommandLine(cmd, def, channel, qemuCaps) < 0)
return -1;
break;
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_XEN:
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_NONE:
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_LAST:
return -1;
}
}
return 0;
}
static int
qemuBuildConsoleCommandLine(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
bool chardevStdioLogd)
{
size_t i;
unsigned int cdevflags = QEMU_BUILD_CHARDEV_TCP_NOWAIT |
QEMU_BUILD_CHARDEV_UNIX_FD_PASS;
if (chardevStdioLogd)
cdevflags |= QEMU_BUILD_CHARDEV_FILE_LOGD;
/* Explicit console devices */
for (i = 0; i < def->nconsoles; i++) {
virDomainChrDefPtr console = def->consoles[i];
char *devstr;
switch (console->targetType) {
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLP:
if (!(devstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
console->source,
console->info.alias,
qemuCaps, cdevflags)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
if (qemuBuildChrDeviceCommandLine(cmd, def, console, qemuCaps) < 0)
return -1;
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLPLM:
if (!(devstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
console->source,
console->info.alias,
qemuCaps, cdevflags)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
if (qemuBuildChrDeviceCommandLine(cmd, def, console, qemuCaps) < 0)
return -1;
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO:
if (!(devstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
console->source,
console->info.alias,
qemuCaps, cdevflags)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
if (qemuBuildChrDeviceCommandLine(cmd, def, console, qemuCaps) < 0)
return -1;
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL:
break;
default:
return -1;
}
}
return 0;
}
char *
qemuBuildRedirdevDevStr(const virDomainDef *def,
virDomainRedirdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
size_t i;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virDomainRedirFilterDefPtr redirfilter = def->redirfilter;
virBufferAsprintf(&buf, "usb-redir,chardev=char%s,id=%s",
dev->info.alias, dev->info.alias);
if (redirfilter && redirfilter->nusbdevs) {
virBufferAddLit(&buf, ",filter=");
for (i = 0; i < redirfilter->nusbdevs; i++) {
virDomainRedirFilterUSBDevDefPtr usbdev = redirfilter->usbdevs[i];
if (usbdev->usbClass >= 0)
virBufferAsprintf(&buf, "0x%02X:", usbdev->usbClass);
else
virBufferAddLit(&buf, "-1:");
if (usbdev->vendor >= 0)
virBufferAsprintf(&buf, "0x%04X:", usbdev->vendor);
else
virBufferAddLit(&buf, "-1:");
if (usbdev->product >= 0)
virBufferAsprintf(&buf, "0x%04X:", usbdev->product);
else
virBufferAddLit(&buf, "-1:");
if (usbdev->version >= 0)
virBufferAsprintf(&buf, "0x%04X:", usbdev->version);
else
virBufferAddLit(&buf, "-1:");
virBufferAsprintf(&buf, "%u", usbdev->allow);
if (i < redirfilter->nusbdevs -1)
virBufferAddLit(&buf, "|");
}
}
if (dev->info.bootIndex)
virBufferAsprintf(&buf, ",bootindex=%u", dev->info.bootIndex);
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static int
qemuBuildRedirdevCommandLine(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
bool chardevStdioLogd)
{
size_t i;
unsigned int cdevflags = QEMU_BUILD_CHARDEV_TCP_NOWAIT |
QEMU_BUILD_CHARDEV_UNIX_FD_PASS;
if (chardevStdioLogd)
cdevflags |= QEMU_BUILD_CHARDEV_FILE_LOGD;
for (i = 0; i < def->nredirdevs; i++) {
virDomainRedirdevDefPtr redirdev = def->redirdevs[i];
char *devstr;
if (!(devstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
redirdev->source,
redirdev->info.alias,
qemuCaps, cdevflags))) {
return -1;
}
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildRedirdevDevStr(def, redirdev, qemuCaps)))
return -1;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
return 0;
}
static void
qemuBuldDomainLoaderPflashCommandLine(virCommandPtr cmd,
virDomainLoaderDefPtr loader,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
int unit = 0;
if (loader->secure == VIR_TRISTATE_BOOL_YES) {
virCommandAddArgList(cmd,
"-global",
"driver=cfi.pflash01,property=secure,value=on",
NULL);
}
/* with blockdev we instantiate the pflash when formatting -machine */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV))
return;
virBufferAddLit(&buf, "file=");
virQEMUBuildBufferEscapeComma(&buf, loader->path);
virBufferAsprintf(&buf, ",if=pflash,format=raw,unit=%d", unit);
unit++;
if (loader->readonly) {
virBufferAsprintf(&buf, ",readonly=%s",
virTristateSwitchTypeToString(loader->readonly));
}
virCommandAddArg(cmd, "-drive");
virCommandAddArgBuffer(cmd, &buf);
if (loader->nvram) {
virBufferAddLit(&buf, "file=");
virQEMUBuildBufferEscapeComma(&buf, loader->nvram);
virBufferAsprintf(&buf, ",if=pflash,format=raw,unit=%d", unit);
virCommandAddArg(cmd, "-drive");
virCommandAddArgBuffer(cmd, &buf);
}
}
static void
qemuBuildDomainLoaderCommandLine(virCommandPtr cmd,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps)
{
virDomainLoaderDefPtr loader = def->os.loader;
if (!loader)
return;
switch ((virDomainLoader) loader->type) {
case VIR_DOMAIN_LOADER_TYPE_ROM:
virCommandAddArg(cmd, "-bios");
virCommandAddArg(cmd, loader->path);
break;
case VIR_DOMAIN_LOADER_TYPE_PFLASH:
qemuBuldDomainLoaderPflashCommandLine(cmd, loader, qemuCaps);
break;
case VIR_DOMAIN_LOADER_TYPE_NONE:
case VIR_DOMAIN_LOADER_TYPE_LAST:
/* nada */
break;
}
}
static char *
qemuBuildTPMDevStr(const virDomainDef *def,
virDomainTPMDefPtr tpm,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
const char *model = virDomainTPMModelTypeToString(tpm->model);
if (tpm->model == VIR_DOMAIN_TPM_MODEL_TIS && def->os.arch == VIR_ARCH_AARCH64)
model = "tpm-tis-device";
virBufferAsprintf(&buf, "%s,tpmdev=tpm-%s,id=%s",
model, tpm->info.alias, tpm->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &tpm->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
/* this function is exported so that tests can mock the FDs */
int
qemuBuildTPMOpenBackendFDs(const char *tpmdev,
const char *cancel_path,
int *tpmfd,
int *cancelfd)
{
if ((*tpmfd = open(tpmdev, O_RDWR)) < 0) {
virReportSystemError(errno, _("Could not open TPM device %s"),
tpmdev);
return -1;
}
if ((*cancelfd = open(cancel_path, O_WRONLY)) < 0) {
virReportSystemError(errno,
_("Could not open TPM device's cancel "
"path %s"), cancel_path);
VIR_FORCE_CLOSE(*tpmfd);
return -1;
}
return 0;
}
static char *
qemuBuildTPMBackendStr(virCommandPtr cmd,
virDomainTPMDefPtr tpm,
int *tpmfd,
int *cancelfd,
char **chardev)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autofree char *cancel_path = NULL;
g_autofree char *devset = NULL;
g_autofree char *cancelset = NULL;
const char *tpmdev;
*tpmfd = -1;
*cancelfd = -1;
virBufferAsprintf(&buf, "%s", virDomainTPMBackendTypeToString(tpm->type));
virBufferAsprintf(&buf, ",id=tpm-%s", tpm->info.alias);
switch (tpm->type) {
case VIR_DOMAIN_TPM_TYPE_PASSTHROUGH:
tpmdev = tpm->data.passthrough.source.data.file.path;
if (!(cancel_path = virTPMCreateCancelPath(tpmdev)))
return NULL;
if (qemuBuildTPMOpenBackendFDs(tpmdev, cancel_path, tpmfd, cancelfd) < 0)
return NULL;
virCommandPassFD(cmd, *tpmfd, VIR_COMMAND_PASS_FD_CLOSE_PARENT);
virCommandPassFD(cmd, *cancelfd, VIR_COMMAND_PASS_FD_CLOSE_PARENT);
if (!(devset = qemuVirCommandGetDevSet(cmd, *tpmfd)) ||
!(cancelset = qemuVirCommandGetDevSet(cmd, *cancelfd)))
return NULL;
virBufferAddLit(&buf, ",path=");
virQEMUBuildBufferEscapeComma(&buf, devset);
virBufferAddLit(&buf, ",cancel-path=");
virQEMUBuildBufferEscapeComma(&buf, cancelset);
break;
case VIR_DOMAIN_TPM_TYPE_EMULATOR:
virBufferAddLit(&buf, ",chardev=chrtpm");
*chardev = g_strdup_printf("socket,id=chrtpm,path=%s",
tpm->data.emulator.source.data.nix.path);
break;
case VIR_DOMAIN_TPM_TYPE_LAST:
return NULL;
}
return virBufferContentAndReset(&buf);
}
static int
qemuBuildTPMCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virDomainTPMDefPtr tpm,
virQEMUCapsPtr qemuCaps)
{
char *optstr;
g_autofree char *chardev = NULL;
int tpmfd = -1;
int cancelfd = -1;
char *fdset;
if (!(optstr = qemuBuildTPMBackendStr(cmd, tpm,
&tpmfd, &cancelfd,
&chardev)))
return -1;
virCommandAddArgList(cmd, "-tpmdev", optstr, NULL);
VIR_FREE(optstr);
if (chardev)
virCommandAddArgList(cmd, "-chardev", chardev, NULL);
if (tpmfd >= 0) {
fdset = qemuVirCommandGetFDSet(cmd, tpmfd);
if (!fdset)
return -1;
virCommandAddArgList(cmd, "-add-fd", fdset, NULL);
VIR_FREE(fdset);
}
if (cancelfd >= 0) {
fdset = qemuVirCommandGetFDSet(cmd, cancelfd);
if (!fdset)
return -1;
virCommandAddArgList(cmd, "-add-fd", fdset, NULL);
VIR_FREE(fdset);
}
if (!(optstr = qemuBuildTPMDevStr(def, tpm, qemuCaps)))
return -1;
virCommandAddArgList(cmd, "-device", optstr, NULL);
VIR_FREE(optstr);
return 0;
}
static int
qemuBuildTPMProxyCommandLine(virCommandPtr cmd,
virDomainTPMDefPtr tpm)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
const char *filePath = NULL;
filePath = tpm->data.passthrough.source.data.file.path;
virCommandAddArg(cmd, "-device");
virBufferAsprintf(&buf, "%s,id=%s,host-path=",
virDomainTPMModelTypeToString(tpm->model),
tpm->info.alias);
virQEMUBuildBufferEscapeComma(&buf, filePath);
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static int
qemuBuildTPMsCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->ntpms; i++) {
if (def->tpms[i]->model == VIR_DOMAIN_TPM_MODEL_SPAPR_PROXY) {
if (qemuBuildTPMProxyCommandLine(cmd, def->tpms[i]) < 0)
return -1;
} else if (qemuBuildTPMCommandLine(cmd, def,
def->tpms[i], qemuCaps) < 0) {
return -1;
}
}
return 0;
}
static int
qemuBuildSEVCommandLine(virDomainObjPtr vm, virCommandPtr cmd,
virDomainSEVDefPtr sev)
{
g_autoptr(virJSONValue) props = NULL;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
qemuDomainObjPrivatePtr priv = vm->privateData;
g_autofree char *dhpath = NULL;
g_autofree char *sessionpath = NULL;
if (!sev)
return 0;
VIR_DEBUG("policy=0x%x cbitpos=%d reduced_phys_bits=%d",
sev->policy, sev->cbitpos, sev->reduced_phys_bits);
if (sev->dh_cert)
dhpath = g_strdup_printf("%s/dh_cert.base64", priv->libDir);
if (sev->session)
sessionpath = g_strdup_printf("%s/session.base64", priv->libDir);
if (qemuMonitorCreateObjectProps(&props, "sev-guest", "sev0",
"u:cbitpos", sev->cbitpos,
"u:reduced-phys-bits", sev->reduced_phys_bits,
"u:policy", sev->policy,
"S:dh-cert-file", dhpath,
"S:session-file", sessionpath,
NULL) < 0)
return -1;
if (qemuBuildObjectCommandlineFromJSON(&buf, props, priv->qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static int
qemuBuildVMCoreInfoCommandLine(virCommandPtr cmd,
const virDomainDef *def)
{
virTristateSwitch vmci = def->features[VIR_DOMAIN_FEATURE_VMCOREINFO];
if (vmci != VIR_TRISTATE_SWITCH_ON)
return 0;
virCommandAddArgList(cmd, "-device", "vmcoreinfo", NULL);
return 0;
}
static int
qemuBuildPanicCommandLine(virCommandPtr cmd,
const virDomainDef *def)
{
size_t i;
for (i = 0; i < def->npanics; i++) {
switch ((virDomainPanicModel) def->panics[i]->model) {
case VIR_DOMAIN_PANIC_MODEL_ISA:
switch (def->panics[i]->info.type) {
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_ISA:
virCommandAddArg(cmd, "-device");
virCommandAddArgFormat(cmd, "pvpanic,ioport=%d",
def->panics[i]->info.addr.isa.iobase);
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE:
virCommandAddArgList(cmd, "-device", "pvpanic", NULL);
break;
}
case VIR_DOMAIN_PANIC_MODEL_S390:
case VIR_DOMAIN_PANIC_MODEL_HYPERV:
case VIR_DOMAIN_PANIC_MODEL_PSERIES:
/* default model value was changed before in post parse */
case VIR_DOMAIN_PANIC_MODEL_DEFAULT:
case VIR_DOMAIN_PANIC_MODEL_LAST:
break;
}
}
return 0;
}
static virJSONValuePtr
qemuBuildPRManagerInfoPropsInternal(const char *alias,
const char *path)
{
virJSONValuePtr ret = NULL;
if (qemuMonitorCreateObjectProps(&ret,
"pr-manager-helper", alias,
"s:path", path, NULL) < 0)
return NULL;
return ret;
}
/**
* qemuBuildPRManagedManagerInfoProps:
*
* Build the JSON properties for the pr-manager object corresponding to the PR
* daemon managed by libvirt.
*/
virJSONValuePtr
qemuBuildPRManagedManagerInfoProps(qemuDomainObjPrivatePtr priv)
{
g_autofree char *path = NULL;
if (!(path = qemuDomainGetManagedPRSocketPath(priv)))
return NULL;
return qemuBuildPRManagerInfoPropsInternal(qemuDomainGetManagedPRAlias(),
path);
}
/**
* qemuBuildPRManagerInfoProps:
* @src: storage source
*
* Build the JSON properties for the pr-manager object.
*/
virJSONValuePtr
qemuBuildPRManagerInfoProps(virStorageSourcePtr src)
{
return qemuBuildPRManagerInfoPropsInternal(src->pr->mgralias, src->pr->path);
}
static int
qemuBuildManagedPRCommandLine(virCommandPtr cmd,
const virDomainDef *def,
qemuDomainObjPrivatePtr priv)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autoptr(virJSONValue) props = NULL;
if (!virDomainDefHasManagedPR(def))
return 0;
if (!(props = qemuBuildPRManagedManagerInfoProps(priv)))
return -1;
if (qemuBuildObjectCommandlineFromJSON(&buf, props, priv->qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static int
qemuBuildPflashBlockdevOne(virCommandPtr cmd,
virStorageSourcePtr src,
virQEMUCapsPtr qemuCaps)
{
g_autoptr(qemuBlockStorageSourceChainData) data = NULL;
size_t i;
if (!(data = qemuBuildStorageSourceChainAttachPrepareBlockdev(src,
qemuCaps)))
return -1;
for (i = data->nsrcdata; i > 0; i--) {
if (qemuBuildBlockStorageSourceAttachDataCommandline(cmd,
data->srcdata[i - 1],
qemuCaps) < 0)
return -1;
}
return 0;
}
static int
qemuBuildPflashBlockdevCommandLine(virCommandPtr cmd,
qemuDomainObjPrivatePtr priv)
{
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV))
return 0;
if (priv->pflash0 &&
qemuBuildPflashBlockdevOne(cmd, priv->pflash0, priv->qemuCaps) < 0)
return -1;
if (priv->pflash1 &&
qemuBuildPflashBlockdevOne(cmd, priv->pflash1, priv->qemuCaps) < 0)
return -1;
return 0;
}
virJSONValuePtr
qemuBuildDBusVMStateInfoProps(virQEMUDriverPtr driver,
virDomainObjPtr vm)
{
virJSONValuePtr ret = NULL;
const char *alias = qemuDomainGetDBusVMStateAlias();
g_autofree char *addr = qemuDBusGetAddress(driver, vm);
if (!addr)
return NULL;
qemuMonitorCreateObjectProps(&ret,
"dbus-vmstate", alias,
"s:addr", addr, NULL);
return ret;
}
static int
qemuBuildDBusVMStateCommandLine(virCommandPtr cmd,
virQEMUDriverPtr driver,
virDomainObjPtr vm)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autoptr(virJSONValue) props = NULL;
qemuDomainObjPrivatePtr priv = QEMU_DOMAIN_PRIVATE(vm);
if (!priv->dbusVMStateIds)
return 0;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DBUS_VMSTATE)) {
VIR_INFO("dbus-vmstate object is not supported by this QEMU binary");
return 0;
}
if (!(props = qemuBuildDBusVMStateInfoProps(driver, vm)))
return -1;
if (qemuBuildObjectCommandlineFromJSON(&buf, props, priv->qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
priv->dbusVMState = true;
return 0;
}
/**
* qemuBuildCommandLineValidate:
*
* Prior to taking the plunge and building a long command line only
* to find some configuration option isn't valid, let's do a couple
* of checks and fail early.
*
* Returns 0 on success, returns -1 and messages what the issue is.
*/
static int
qemuBuildCommandLineValidate(virQEMUDriverPtr driver,
const virDomainDef *def)
{
size_t i;
int sdl = 0;
int vnc = 0;
int spice = 0;
int egl_headless = 0;
if (!driver->privileged) {
/* If we have no cgroups then we can have no tunings that
* require them */
if (virMemoryLimitIsSet(def->mem.hard_limit) ||
virMemoryLimitIsSet(def->mem.soft_limit) ||
virMemoryLimitIsSet(def->mem.swap_hard_limit)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Memory tuning is not available in session mode"));
return -1;
}
if (def->blkio.weight) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Block I/O tuning is not available in session mode"));
return -1;
}
if (def->cputune.sharesSpecified || def->cputune.period ||
def->cputune.quota || def->cputune.global_period ||
def->cputune.global_quota || def->cputune.emulator_period ||
def->cputune.emulator_quota || def->cputune.iothread_period ||
def->cputune.iothread_quota) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("CPU tuning is not available in session mode"));
return -1;
}
}
for (i = 0; i < def->ngraphics; ++i) {
switch (def->graphics[i]->type) {
case VIR_DOMAIN_GRAPHICS_TYPE_SDL:
++sdl;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_VNC:
++vnc;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_SPICE:
++spice;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS:
++egl_headless;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_RDP:
case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP:
case VIR_DOMAIN_GRAPHICS_TYPE_LAST:
break;
}
}
if (sdl > 1 || vnc > 1 || spice > 1 || egl_headless > 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only 1 graphics device of each type "
"(sdl, vnc, spice, headless) is supported"));
return -1;
}
if (def->virtType == VIR_DOMAIN_VIRT_XEN ||
def->os.type == VIR_DOMAIN_OSTYPE_XEN ||
def->os.type == VIR_DOMAIN_OSTYPE_LINUX) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("qemu emulator '%s' does not support xen"),
def->emulator);
return -1;
}
return 0;
}
static int
qemuBuildSeccompSandboxCommandLine(virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
virQEMUCapsPtr qemuCaps G_GNUC_UNUSED)
{
if (cfg->seccompSandbox == 0) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SECCOMP_SANDBOX))
virCommandAddArgList(cmd, "-sandbox", "off", NULL);
return 0;
}
/* Use blacklist by default if supported */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SECCOMP_BLACKLIST)) {
virCommandAddArgList(cmd, "-sandbox",
"on,obsolete=deny,elevateprivileges=deny,"
"spawn=deny,resourcecontrol=deny",
NULL);
return 0;
}
/* Seccomp whitelist is opt-in */
if (cfg->seccompSandbox > 0)
virCommandAddArgList(cmd, "-sandbox", "on", NULL);
return 0;
}
char *
qemuBuildVsockDevStr(virDomainDefPtr def,
virDomainVsockDefPtr vsock,
virQEMUCapsPtr qemuCaps,
const char *fdprefix)
{
qemuDomainVsockPrivatePtr priv = (qemuDomainVsockPrivatePtr)vsock->privateData;
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
if (qemuBuildVirtioDevStr(&buf, "vhost-vsock", qemuCaps,
VIR_DOMAIN_DEVICE_VSOCK, vsock) < 0) {
return NULL;
}
virBufferAsprintf(&buf, ",id=%s", vsock->info.alias);
virBufferAsprintf(&buf, ",guest-cid=%u", vsock->guest_cid);
virBufferAsprintf(&buf, ",vhostfd=%s%u", fdprefix, priv->vhostfd);
qemuBuildVirtioOptionsStr(&buf, vsock->virtio);
if (qemuBuildDeviceAddressStr(&buf, def, &vsock->info, qemuCaps) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static int
qemuBuildVsockCommandLine(virCommandPtr cmd,
virDomainDefPtr def,
virDomainVsockDefPtr vsock,
virQEMUCapsPtr qemuCaps)
{
qemuDomainVsockPrivatePtr priv = (qemuDomainVsockPrivatePtr)vsock->privateData;
g_autofree char *devstr = NULL;
if (!(devstr = qemuBuildVsockDevStr(def, vsock, qemuCaps, "")))
return -1;
virCommandPassFD(cmd, priv->vhostfd, VIR_COMMAND_PASS_FD_CLOSE_PARENT);
priv->vhostfd = -1;
if (qemuCommandAddExtDevice(cmd, &vsock->info) < 0)
return -1;
virCommandAddArgList(cmd, "-device", devstr, NULL);
return 0;
}
typedef enum {
QEMU_COMMAND_DEPRECATION_BEHAVIOR_NONE = 0,
QEMU_COMMAND_DEPRECATION_BEHAVIOR_OMIT,
QEMU_COMMAND_DEPRECATION_BEHAVIOR_REJECT,
QEMU_COMMAND_DEPRECATION_BEHAVIOR_CRASH,
QEMU_COMMAND_DEPRECATION_BEHAVIOR_LAST
} qemuCommnadDeprecationBehavior;
VIR_ENUM_DECL(qemuCommnadDeprecationBehavior);
VIR_ENUM_IMPL(qemuCommnadDeprecationBehavior,
QEMU_COMMAND_DEPRECATION_BEHAVIOR_LAST,
"none",
"omit",
"reject",
"crash");
static void
qemuBuildCompatDeprecatedCommandLine(virCommand *cmd,
virQEMUDriverConfig *cfg,
virDomainDef *def,
virQEMUCaps *qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
qemuDomainXmlNsDefPtr nsdata = def->namespaceData;
qemuCommnadDeprecationBehavior behavior = QEMU_COMMAND_DEPRECATION_BEHAVIOR_NONE;
const char *behaviorStr = cfg->deprecationBehavior;
int tmp;
if (nsdata && nsdata->deprecationBehavior)
behaviorStr = nsdata->deprecationBehavior;
if ((tmp = qemuCommnadDeprecationBehaviorTypeFromString(behaviorStr)) < 0) {
VIR_WARN("Unsupported deprecation behavior '%s' for VM '%s'",
behaviorStr, def->name);
return;
}
behavior = tmp;
if (behavior == QEMU_COMMAND_DEPRECATION_BEHAVIOR_NONE)
return;
/* we don't try to enable this feature at all if qemu doesn't support it,
* so that a downgrade of qemu version doesn't impact startup of the VM */
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_COMPAT_DEPRECATED)) {
VIR_DEBUG("-compat not supported for VM '%s'", def->name);
return;
}
/* all active options hide output fields from qemu */
virBufferAddLit(&buf, "deprecated-output=hide,");
switch (behavior) {
case QEMU_COMMAND_DEPRECATION_BEHAVIOR_OMIT:
case QEMU_COMMAND_DEPRECATION_BEHAVIOR_NONE:
case QEMU_COMMAND_DEPRECATION_BEHAVIOR_LAST:
default:
/* output field hiding is default for all cases */
break;
case QEMU_COMMAND_DEPRECATION_BEHAVIOR_REJECT:
virBufferAddLit(&buf, "deprecated-input=reject,");
break;
case QEMU_COMMAND_DEPRECATION_BEHAVIOR_CRASH:
virBufferAddLit(&buf, "deprecated-input=crash,");
break;
}
virBufferTrim(&buf, ",");
virCommandAddArg(cmd, "-compat");
virCommandAddArgBuffer(cmd, &buf);
}
/*
* Constructs a argv suitable for launching qemu with config defined
* for a given virtual machine.
*/
virCommandPtr
qemuBuildCommandLine(virQEMUDriverPtr driver,
virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virDomainObjPtr vm,
const char *migrateURI,
virDomainMomentObjPtr snapshot,
virNetDevVPortProfileOp vmop,
bool standalone,
bool enableFips,
size_t *nnicindexes,
int **nicindexes,
unsigned int flags)
{
size_t i;
char uuid[VIR_UUID_STRING_BUFLEN];
g_autoptr(virCommand) cmd = NULL;
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
unsigned int bootHostdevNet = 0;
qemuDomainObjPrivatePtr priv = vm->privateData;
virDomainDefPtr def = vm->def;
virQEMUCapsPtr qemuCaps = priv->qemuCaps;
bool chardevStdioLogd = priv->chardevStdioLogd;
VIR_DEBUG("driver=%p def=%p mon=%p "
"qemuCaps=%p migrateURI=%s snapshot=%p vmop=%d flags=0x%x",
driver, def, priv->monConfig,
qemuCaps, migrateURI, snapshot, vmop, flags);
if (qemuBuildCommandLineValidate(driver, def) < 0)
return NULL;
cmd = virCommandNew(def->emulator);
virCommandAddEnvPassCommon(cmd);
/* For system QEMU we want to set both HOME and all the XDG variables to
* libDir/qemu otherwise apps QEMU links to might try to access the default
* home dir '/' which would always result in a permission issue.
*
* For session QEMU, we only want to set XDG_CACHE_HOME as cache data
* may be purged at any time and that should not affect any app. We
* do want VMs to integrate with services in user's session so we're
* not re-setting any other env variables
*/
if (!driver->privileged) {
virCommandAddEnvFormat(cmd, "XDG_CACHE_HOME=%s/%s",
priv->libDir, ".cache");
} else {
virCommandAddEnvPair(cmd, "HOME", priv->libDir);
virCommandAddEnvXDG(cmd, priv->libDir);
}
if (qemuBuildNameCommandLine(cmd, cfg, def, qemuCaps) < 0)
return NULL;
qemuBuildCompatDeprecatedCommandLine(cmd, cfg, def, qemuCaps);
if (!standalone)
virCommandAddArg(cmd, "-S"); /* freeze CPU */
if (qemuBuildMasterKeyCommandLine(cmd, priv) < 0)
return NULL;
if (qemuBuildDBusVMStateCommandLine(cmd, driver, vm) < 0)
return NULL;
if (qemuBuildManagedPRCommandLine(cmd, def, priv) < 0)
return NULL;
if (qemuBuildPflashBlockdevCommandLine(cmd, priv) < 0)
return NULL;
if (enableFips)
virCommandAddArg(cmd, "-enable-fips");
if (qemuBuildMachineCommandLine(cmd, cfg, def, qemuCaps, priv) < 0)
return NULL;
qemuBuildTSEGCommandLine(cmd, def);
if (qemuBuildCpuCommandLine(cmd, driver, def, qemuCaps) < 0)
return NULL;
qemuBuildDomainLoaderCommandLine(cmd, def, qemuCaps);
if (qemuBuildMemCommandLine(cmd, def, qemuCaps, priv) < 0)
return NULL;
if (qemuBuildSmpCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildIOThreadCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (virDomainNumaGetNodeCount(def->numa) &&
qemuBuildNumaCommandLine(cfg, def, cmd, priv) < 0)
return NULL;
if (qemuBuildMemoryDeviceCommandLine(cmd, cfg, def, priv) < 0)
return NULL;
virUUIDFormat(def->uuid, uuid);
virCommandAddArgList(cmd, "-uuid", uuid, NULL);
if (qemuBuildSmbiosCommandLine(cmd, driver, def) < 0)
return NULL;
if (qemuBuildSysinfoCommandLine(cmd, def) < 0)
return NULL;
if (qemuBuildVMGenIDCommandLine(cmd, def) < 0)
return NULL;
/*
* NB, -nographic *MUST* come before any serial, or monitor
* or parallel port flags due to QEMU craziness, where it
* decides to change the serial port & monitor to be on stdout
* if you ask for nographic. So we have to make sure we override
* these defaults ourselves...
*/
if (!def->ngraphics) {
virCommandAddArg(cmd, "-display");
virCommandAddArg(cmd, "none");
}
/* Disable global config files and default devices */
virCommandAddArg(cmd, "-no-user-config");
virCommandAddArg(cmd, "-nodefaults");
if (qemuBuildSgaCommandLine(cmd, def) < 0)
return NULL;
if (qemuBuildMonitorCommandLine(logManager, secManager, cmd, cfg, def, priv) < 0)
return NULL;
if (qemuBuildClockCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildPMCommandLine(cmd, def, priv) < 0)
return NULL;
if (qemuBuildBootCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildIOMMUCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildGlobalControllerCommandLine(cmd, def) < 0)
return NULL;
if (qemuBuildControllersCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildHubCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildControllersByTypeCommandLine(cmd, def, qemuCaps,
VIR_DOMAIN_CONTROLLER_TYPE_CCID) < 0)
return NULL;
if (qemuBuildDisksCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildFilesystemCommandLine(cmd, def, qemuCaps, priv) < 0)
return NULL;
if (qemuBuildNetCommandLine(driver, vm, logManager, secManager, cmd,
qemuCaps, vmop, standalone,
nnicindexes, nicindexes, &bootHostdevNet, flags) < 0)
return NULL;
if (qemuBuildSmartcardCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
return NULL;
if (qemuBuildSerialCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
return NULL;
if (qemuBuildParallelsCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
return NULL;
if (qemuBuildChannelsCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd, flags) < 0)
return NULL;
if (qemuBuildConsoleCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
return NULL;
if (qemuBuildTPMsCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildInputCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildAudioCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildGraphicsCommandLine(cfg, cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildVideoCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildSoundCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildWatchdogCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildRedirdevCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
return NULL;
if (qemuBuildHostdevCommandLine(cmd, def, qemuCaps, &bootHostdevNet) < 0)
return NULL;
if (migrateURI)
virCommandAddArgList(cmd, "-incoming", migrateURI, NULL);
if (qemuBuildMemballoonCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildRNGCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
return NULL;
if (qemuBuildNVRAMCommandLine(cmd, def) < 0)
return NULL;
if (qemuBuildVMCoreInfoCommandLine(cmd, def) < 0)
return NULL;
if (qemuBuildSEVCommandLine(vm, cmd, def->sev) < 0)
return NULL;
if (snapshot)
virCommandAddArgList(cmd, "-loadvm", snapshot->def->name, NULL);
if (def->namespaceData) {
qemuDomainXmlNsDefPtr qemuxmlns;
qemuxmlns = def->namespaceData;
for (i = 0; i < qemuxmlns->num_args; i++)
virCommandAddArg(cmd, qemuxmlns->args[i]);
for (i = 0; i < qemuxmlns->num_env; i++)
virCommandAddEnvPair(cmd, qemuxmlns->env_name[i],
NULLSTR_EMPTY(qemuxmlns->env_value[i]));
}
if (qemuBuildSeccompSandboxCommandLine(cmd, cfg, qemuCaps) < 0)
return NULL;
if (qemuBuildPanicCommandLine(cmd, def) < 0)
return NULL;
for (i = 0; i < def->nshmems; i++) {
if (qemuBuildShmemCommandLine(logManager, secManager, cmd, cfg,
def, def->shmems[i], qemuCaps,
chardevStdioLogd))
return NULL;
}
if (def->vsock &&
qemuBuildVsockCommandLine(cmd, def, def->vsock, qemuCaps) < 0)
return NULL;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MSG_TIMESTAMP) &&
cfg->logTimestamp)
virCommandAddArgList(cmd, "-msg", "timestamp=on", NULL);
return g_steal_pointer(&cmd);
}
/* This function generates the correct '-device' string for character
* devices of each architecture.
*/
static int
qemuBuildSerialChrDeviceStr(char **deviceStr,
const virDomainDef *def,
virDomainChrDefPtr serial,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
virQEMUCapsFlags caps;
switch ((virDomainChrSerialTargetModel) serial->targetModel) {
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_ISA_SERIAL:
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_USB_SERIAL:
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_PCI_SERIAL:
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_SPAPR_VTY:
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_SCLPCONSOLE:
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_SCLPLMCONSOLE:
caps = qemuChrSerialTargetModelToCaps(serial->targetModel);
if (caps && !virQEMUCapsGet(qemuCaps, caps)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("'%s' is not supported in this QEMU binary"),
virDomainChrSerialTargetModelTypeToString(serial->targetModel));
return -1;
}
break;
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_PL011:
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_16550A:
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_NONE:
case VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_LAST:
/* Except from _LAST, which is just a guard value and will never
* be used, all of the above are platform devices, which means
* qemuBuildSerialCommandLine() will have taken the appropriate
* branch and we will not have ended up here. */
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Invalid target model for serial device"));
return -1;
}
virBufferAsprintf(&buf, "%s,chardev=char%s,id=%s",
virDomainChrSerialTargetModelTypeToString(serial->targetModel),
serial->info.alias, serial->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &serial->info, qemuCaps) < 0)
return -1;
*deviceStr = virBufferContentAndReset(&buf);
return 0;
}
static int
qemuBuildParallelChrDeviceStr(char **deviceStr,
virDomainChrDefPtr chr)
{
*deviceStr = g_strdup_printf("isa-parallel,chardev=char%s,id=%s",
chr->info.alias, chr->info.alias);
return 0;
}
virJSONValuePtr
qemuBuildChannelGuestfwdNetdevProps(virDomainChrDefPtr chr)
{
g_autoptr(virJSONValue) guestfwdarr = virJSONValueNewArray();
g_autoptr(virJSONValue) guestfwdstrobj = virJSONValueNewObject();
g_autofree char *addr = NULL;
virJSONValuePtr ret = NULL;
if (!(addr = virSocketAddrFormat(chr->target.addr)))
return NULL;
/* this may seem weird, but qemu indeed decided that 'guestfwd' parameter
* is an array of objects which have just one member named 'str' which
* contains the description */
if (virJSONValueObjectAppendStringPrintf(guestfwdstrobj, "str",
"tcp:%s:%i-chardev:char%s",
addr,
virSocketAddrGetPort(chr->target.addr),
chr->info.alias) < 0)
return NULL;
if (virJSONValueArrayAppend(guestfwdarr, &guestfwdstrobj) < 0)
return NULL;
if (virJSONValueObjectCreate(&ret,
"s:type", "user",
"a:guestfwd", &guestfwdarr,
"s:id", chr->info.alias,
NULL) < 0)
return NULL;
return ret;
}
static int
qemuBuildChannelChrDeviceStr(char **deviceStr,
const virDomainDef *def,
virDomainChrDefPtr chr)
{
switch ((virDomainChrChannelTargetType)chr->targetType) {
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
if (!(*deviceStr = qemuBuildVirtioSerialPortDevStr(def, chr)))
return -1;
break;
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_GUESTFWD:
/* guestfwd is as a netdev handled separately */
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_XEN:
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_NONE:
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_LAST:
return -1;
}
return 0;
}
static int
qemuBuildConsoleChrDeviceStr(char **deviceStr,
const virDomainDef *def,
virDomainChrDefPtr chr)
{
switch ((virDomainChrConsoleTargetType)chr->targetType) {
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLP:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLPLM:
if (!(*deviceStr = qemuBuildSclpDevStr(chr)))
return -1;
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO:
if (!(*deviceStr = qemuBuildVirtioSerialPortDevStr(def, chr)))
return -1;
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL:
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_NONE:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_XEN:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_UML:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LXC:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_OPENVZ:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported console target type %s"),
NULLSTR(virDomainChrConsoleTargetTypeToString(chr->targetType)));
return -1;
}
return 0;
}
int
qemuBuildChrDeviceStr(char **deviceStr,
const virDomainDef *vmdef,
virDomainChrDefPtr chr,
virQEMUCapsPtr qemuCaps)
{
int ret = -1;
switch ((virDomainChrDeviceType)chr->deviceType) {
case VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL:
ret = qemuBuildSerialChrDeviceStr(deviceStr, vmdef, chr, qemuCaps);
break;
case VIR_DOMAIN_CHR_DEVICE_TYPE_PARALLEL:
ret = qemuBuildParallelChrDeviceStr(deviceStr, chr);
break;
case VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL:
ret = qemuBuildChannelChrDeviceStr(deviceStr, vmdef, chr);
break;
case VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE:
ret = qemuBuildConsoleChrDeviceStr(deviceStr, vmdef, chr);
break;
case VIR_DOMAIN_CHR_DEVICE_TYPE_LAST:
return ret;
}
return ret;
}
virJSONValuePtr
qemuBuildHotpluggableCPUProps(const virDomainVcpuDef *vcpu)
{
qemuDomainVcpuPrivatePtr vcpupriv = QEMU_DOMAIN_VCPU_PRIVATE(vcpu);
g_autoptr(virJSONValue) ret = NULL;
if (!(ret = virJSONValueCopy(vcpupriv->props)))
return NULL;
if (virJSONValueObjectPrependString(ret, "id", vcpupriv->alias) < 0 ||
virJSONValueObjectPrependString(ret, "driver", vcpupriv->type) < 0)
return NULL;
return g_steal_pointer(&ret);
}
/**
* qemuBuildStorageSourceAttachPrepareDrive:
* @disk: disk object to prepare
* @qemuCaps: qemu capabilities object
* @driveBoot: bootable flag for disks which don't have -device part
*
* Prepare qemuBlockStorageSourceAttachDataPtr for use with the old approach
* using -drive/drive_add. See qemuBlockStorageSourceAttachPrepareBlockdev.
*/
qemuBlockStorageSourceAttachDataPtr
qemuBuildStorageSourceAttachPrepareDrive(virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps)
{
g_autoptr(qemuBlockStorageSourceAttachData) data = NULL;
data = g_new0(qemuBlockStorageSourceAttachData, 1);
if (!(data->driveCmd = qemuBuildDriveStr(disk, qemuCaps)) ||
!(data->driveAlias = qemuAliasDiskDriveFromDisk(disk)))
return NULL;
return g_steal_pointer(&data);
}
/**
* qemuBuildStorageSourceAttachPrepareChardev:
* @src: disk source to prepare
*
* Prepare qemuBlockStorageSourceAttachDataPtr for vhost-user disk
* to be used with -chardev.
*/
qemuBlockStorageSourceAttachDataPtr
qemuBuildStorageSourceAttachPrepareChardev(virDomainDiskDefPtr disk)
{
g_autoptr(qemuBlockStorageSourceAttachData) data = NULL;
g_auto(virBuffer) chardev = VIR_BUFFER_INITIALIZER;
data = g_new0(qemuBlockStorageSourceAttachData, 1);
data->chardevDef = disk->src->vhostuser;
data->chardevAlias = qemuDomainGetVhostUserChrAlias(disk->info.alias);
virBufferAddLit(&chardev, "socket");
virBufferAsprintf(&chardev, ",id=%s", data->chardevAlias);
virBufferAddLit(&chardev, ",path=");
virQEMUBuildBufferEscapeComma(&chardev, disk->src->vhostuser->data.nix.path);
qemuBuildChrChardevReconnectStr(&chardev,
&disk->src->vhostuser->data.nix.reconnect);
if (!(data->chardevCmd = virBufferContentAndReset(&chardev)))
return NULL;
return g_steal_pointer(&data);
}
/**
* qemuBuildStorageSourceAttachPrepareCommon:
* @src: storage source
* @data: already initialized data for disk source addition
* @qemuCaps: qemu capabilities object
*
* Prepare data for configuration associated with the disk source such as
* secrets/TLS/pr objects etc ...
*/
int
qemuBuildStorageSourceAttachPrepareCommon(virStorageSourcePtr src,
qemuBlockStorageSourceAttachDataPtr data,
virQEMUCapsPtr qemuCaps)
{
qemuDomainStorageSourcePrivatePtr srcpriv = QEMU_DOMAIN_STORAGE_SOURCE_PRIVATE(src);
const char *tlsKeySecretAlias = NULL;
if (src->pr &&
!virStoragePRDefIsManaged(src->pr) &&
!(data->prmgrProps = qemuBuildPRManagerInfoProps(src)))
return -1;
if (srcpriv) {
if (srcpriv->secinfo &&
srcpriv->secinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES &&
qemuBuildSecretInfoProps(srcpriv->secinfo, &data->authsecretProps) < 0)
return -1;
if (srcpriv->encinfo &&
qemuBuildSecretInfoProps(srcpriv->encinfo, &data->encryptsecretProps) < 0)
return -1;
if (srcpriv->httpcookie &&
qemuBuildSecretInfoProps(srcpriv->httpcookie, &data->httpcookiesecretProps) < 0)
return -1;
if (srcpriv->tlsKeySecret) {
if (qemuBuildSecretInfoProps(srcpriv->tlsKeySecret, &data->tlsKeySecretProps) < 0)
return -1;
tlsKeySecretAlias = srcpriv->tlsKeySecret->s.aes.alias;
}
}
if (src->haveTLS == VIR_TRISTATE_BOOL_YES &&
qemuBuildTLSx509BackendProps(src->tlsCertdir, false, true, src->tlsAlias,
tlsKeySecretAlias, qemuCaps, &data->tlsProps) < 0)
return -1;
return 0;
}
/**
* qemuBuildStorageSourceChainAttachPrepareDrive:
* @disk: disk definition
* @qemuCaps: qemu capabilities object
*
* Prepares qemuBlockStorageSourceChainDataPtr for attaching @disk via -drive.
*/
qemuBlockStorageSourceChainDataPtr
qemuBuildStorageSourceChainAttachPrepareDrive(virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps)
{
g_autoptr(qemuBlockStorageSourceAttachData) elem = NULL;
g_autoptr(qemuBlockStorageSourceChainData) data = NULL;
data = g_new0(qemuBlockStorageSourceChainData, 1);
if (!(elem = qemuBuildStorageSourceAttachPrepareDrive(disk, qemuCaps)))
return NULL;
if (qemuBuildStorageSourceAttachPrepareCommon(disk->src, elem, qemuCaps) < 0)
return NULL;
if (VIR_APPEND_ELEMENT(data->srcdata, data->nsrcdata, elem) < 0)
return NULL;
return g_steal_pointer(&data);
}
/**
* qemuBuildStorageSourceChainAttachPrepareChardev:
* @src: disk definition
*
* Prepares qemuBlockStorageSourceChainDataPtr for attaching a vhost-user
* disk's backend via -chardev.
*/
qemuBlockStorageSourceChainDataPtr
qemuBuildStorageSourceChainAttachPrepareChardev(virDomainDiskDefPtr disk)
{
g_autoptr(qemuBlockStorageSourceAttachData) elem = NULL;
g_autoptr(qemuBlockStorageSourceChainData) data = NULL;
data = g_new0(qemuBlockStorageSourceChainData, 1);
if (!(elem = qemuBuildStorageSourceAttachPrepareChardev(disk)))
return NULL;
if (VIR_APPEND_ELEMENT(data->srcdata, data->nsrcdata, elem) < 0)
return NULL;
return g_steal_pointer(&data);
}
static int
qemuBuildStorageSourceChainAttachPrepareBlockdevOne(qemuBlockStorageSourceChainData *data,
virStorageSourcePtr src,
virStorageSourcePtr backingStore,
virQEMUCapsPtr qemuCaps)
{
g_autoptr(qemuBlockStorageSourceAttachData) elem = NULL;
if (!(elem = qemuBlockStorageSourceAttachPrepareBlockdev(src, backingStore, true)))
return -1;
if (qemuBuildStorageSourceAttachPrepareCommon(src, elem, qemuCaps) < 0)
return -1;
if (VIR_APPEND_ELEMENT(data->srcdata, data->nsrcdata, elem) < 0)
return -1;
return 0;
}
/**
* qemuBuildStorageSourceChainAttachPrepareBlockdev:
* @top: storage source chain
* @qemuCaps: qemu capabilities object
*
* Prepares qemuBlockStorageSourceChainDataPtr for attaching the chain of images
* starting at @top via -blockdev.
*/
qemuBlockStorageSourceChainDataPtr
qemuBuildStorageSourceChainAttachPrepareBlockdev(virStorageSourcePtr top,
virQEMUCapsPtr qemuCaps)
{
g_autoptr(qemuBlockStorageSourceChainData) data = NULL;
virStorageSourcePtr n;
data = g_new0(qemuBlockStorageSourceChainData, 1);
for (n = top; virStorageSourceIsBacking(n); n = n->backingStore) {
if (qemuBuildStorageSourceChainAttachPrepareBlockdevOne(data, n,
n->backingStore,
qemuCaps) < 0)
return NULL;
}
return g_steal_pointer(&data);
}
/**
* qemuBuildStorageSourceChainAttachPrepareBlockdevTop:
* @top: storage source chain
* @backingStore: a storage source to use as backing of @top
* @qemuCaps: qemu capabilities object
*
* Prepares qemuBlockStorageSourceChainDataPtr for attaching of @top image only
* via -blockdev.
*/
qemuBlockStorageSourceChainDataPtr
qemuBuildStorageSourceChainAttachPrepareBlockdevTop(virStorageSourcePtr top,
virStorageSourcePtr backingStore,
virQEMUCapsPtr qemuCaps)
{
g_autoptr(qemuBlockStorageSourceChainData) data = NULL;
data = g_new0(qemuBlockStorageSourceChainData, 1);
if (qemuBuildStorageSourceChainAttachPrepareBlockdevOne(data, top, backingStore,
qemuCaps) < 0)
return NULL;
return g_steal_pointer(&data);
}