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libvirt/src/qemu/qemu_command.c
Eric Blake e055a816af snapshot: Rename virDomainSnapshotObjPtr 
Now that the core of SnapshotObj is agnostic to snapshots and can be
shared with upcoming checkpoint code, it is time to rename the struct
and the functions specific to list operations. A later patch will
shuffle which file holds the common code. This is a fairly mechanical
patch.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2019-03-22 01:18:34 -05:00

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/*
* 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
* <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "qemu_command.h"
#include "qemu_hostdev.h"
#include "qemu_capabilities.h"
#include "qemu_interface.h"
#include "qemu_alias.h"
#include "qemu_security.h"
#include "qemu_block.h"
#include "cpu/cpu.h"
#include "dirname.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 "virstoragefile.h"
#include "virtpm.h"
#include "virscsi.h"
#include "virnuma.h"
#include "virgic.h"
#include "virmdev.h"
#include "virdomainsnapshotobjlist.h"
#if defined(__linux__)
# include <linux/capability.h>
#endif
#include "logging/log_manager.h"
#include <sys/stat.h>
#include <fcntl.h>
#define VIR_FROM_THIS VIR_FROM_QEMU
VIR_LOG_INIT("qemu.qemu_command");
VIR_ENUM_DECL(virDomainDiskQEMUBus);
VIR_ENUM_IMPL(virDomainDiskQEMUBus, VIR_DOMAIN_DISK_BUS_LAST,
"ide",
"floppy",
"scsi",
"virtio",
"xen",
"usb",
"uml",
"sata",
"sd",
);
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 */,
);
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 */,
);
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 */,
);
VIR_ENUM_DECL(qemuSoundCodec);
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(qemuDomainFSDriver);
VIR_ENUM_IMPL(qemuDomainFSDriver, VIR_DOMAIN_FS_DRIVER_TYPE_LAST,
"local",
"local",
"handle",
NULL,
NULL,
NULL,
);
VIR_ENUM_DECL(qemuNumaPolicy);
VIR_ENUM_IMPL(qemuNumaPolicy, VIR_DOMAIN_NUMATUNE_MEM_LAST,
"bind",
"preferred",
"interleave",
);
/**
* 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)
{
int ret = -1;
char *alias = NULL;
char *path = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
/* 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)))
goto cleanup;
virCommandAddArg(cmd, "-object");
virBufferAsprintf(&buf, "secret,id=%s,format=raw,file=", alias);
virQEMUBuildBufferEscapeComma(&buf, path);
virCommandAddArgBuffer(cmd, &buf);
ret = 0;
cleanup:
virBufferFreeAndReset(&buf);
VIR_FREE(alias);
VIR_FREE(path);
return ret;
}
/**
* 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)
{
char *result = NULL;
int idx = virCommandPassFDGetFDIndex(cmd, fd);
if (idx >= 0) {
ignore_value(virAsprintf(&result, "set=%d,fd=%d", idx, fd));
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("file descriptor %d has not been transferred"), fd);
}
return result;
}
/**
* 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)
{
char *result = NULL;
int idx = virCommandPassFDGetFDIndex(cmd, fd);
if (idx >= 0) {
ignore_value(virAsprintf(&result, "/dev/fdset/%d", idx));
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("file descriptor %d has not been transferred"), fd);
}
return result;
}
static int
qemuBuildDeviceAddressStr(virBufferPtr buf,
const virDomainDef *domainDef,
virDomainDeviceInfoPtr info,
virQEMUCapsPtr qemuCaps)
{
int ret = -1;
char *devStr = NULL;
const char *contAlias = NULL;
bool contIsPHB = false;
int contTargetIndex = 0;
if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
size_t i;
if (!(devStr = virPCIDeviceAddressAsString(&info->addr.pci)))
goto cleanup;
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);
goto cleanup;
}
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);
goto cleanup;
}
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);
} else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB) {
if (!(contAlias = virDomainControllerAliasFind(domainDef,
VIR_DOMAIN_CONTROLLER_TYPE_USB,
info->addr.usb.bus)))
goto cleanup;
virBufferAsprintf(buf, ",bus=%s.0", contAlias);
if (virDomainUSBAddressPortIsValid(info->addr.usb.port)) {
virBufferAddLit(buf, ",port=");
virDomainUSBAddressPortFormatBuf(buf, info->addr.usb.port);
}
} else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO) {
if (info->addr.spaprvio.has_reg)
virBufferAsprintf(buf, ",reg=0x%llx", info->addr.spaprvio.reg);
} else if (info->type == 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);
} else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_ISA) {
virBufferAsprintf(buf, ",iobase=0x%x,irq=0x%x",
info->addr.isa.iobase,
info->addr.isa.irq);
}
ret = 0;
cleanup:
VIR_FREE(devStr);
return ret;
}
/**
* qemuBuildVirtioDevStr
* @buf: virBufferPtr to append the built string
* @baseName: qemu virtio device basename string. Ex: virtio-rng for <rng>
* @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_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 = STREQ_NULLABLE(device.data.net->model,
"virtio-transitional");
has_ntmodel = STREQ_NULLABLE(device.data.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_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 int
qemuBuildVirtioOptionsStr(virBufferPtr buf,
virDomainVirtioOptionsPtr virtio,
virQEMUCapsPtr qemuCaps)
{
if (!virtio)
return 0;
if (virtio->iommu != VIR_TRISTATE_SWITCH_ABSENT) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the iommu setting is not supported "
"with this QEMU binary"));
return -1;
}
virBufferAsprintf(buf, ",iommu_platform=%s",
virTristateSwitchTypeToString(virtio->iommu));
}
if (virtio->ats != VIR_TRISTATE_SWITCH_ABSENT) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_ATS)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the ats setting is not supported with this "
"QEMU binary"));
return -1;
}
virBufferAsprintf(buf, ",ats=%s",
virTristateSwitchTypeToString(virtio->ats));
}
return 0;
}
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;
}
#define QEMU_SERIAL_PARAM_ACCEPTED_CHARS \
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_ .+"
static int
qemuSafeSerialParamValue(const char *value)
{
if (strspn(value, QEMU_SERIAL_PARAM_ACCEPTED_CHARS) != strlen(value)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("driver serial '%s' contains unsafe characters"),
value);
return -1;
}
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)
{
int ret = -1;
char *keyid = NULL;
if (!(keyid = qemuDomainGetMasterKeyAlias()))
return -1;
ret = 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);
VIR_FREE(keyid);
return ret;
}
/**
* qemuBuildObjectSecretCommandLine:
* @cmd: the command to modify
* @secinfo: pointer to the secret info object
*
* 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)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
int ret = -1;
virJSONValuePtr props = NULL;
if (qemuBuildSecretInfoProps(secinfo, &props) < 0)
return -1;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, props) < 0)
goto cleanup;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
ret = 0;
cleanup:
virBufferFreeAndReset(&buf);
virJSONValueFree(props);
return ret;
}
/* qemuBuildDiskSecinfoCommandLine:
* @cmd: Pointer to the command string
* @secinfo: Pointer to a possible secinfo
*
* Add the secret object for the disks that will be using it to perform
* their authentication.
*
* Returns 0 on success, -1 w/ error on some sort of failure.
*/
static int
qemuBuildDiskSecinfoCommandLine(virCommandPtr cmd,
qemuDomainSecretInfoPtr secinfo)
{
/* Not necessary for non AES secrets */
if (!secinfo || secinfo->type != VIR_DOMAIN_SECRET_INFO_TYPE_AES)
return 0;
return qemuBuildObjectSecretCommandLine(cmd, secinfo);
}
/* 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;
}
if (virAsprintf(&uri->user, "%s:%s",
secinfo->s.plain.username,
secinfo->s.plain.secret) < 0)
return -1;
} else {
if (VIR_STRDUP(uri->user, secinfo->s.plain.username) < 0)
return -1;
}
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)
{
char *base64secret = NULL;
if (!secinfo) {
virBufferAddLit(buf, ":auth_supported=none");
return 0;
}
switch ((qemuDomainSecretInfoType) secinfo->type) {
case VIR_DOMAIN_SECRET_INFO_TYPE_PLAIN:
if (!(base64secret = virStringEncodeBase64(secinfo->s.plain.secret,
secinfo->s.plain.secretlen)))
return -1;
virBufferEscape(buf, '\\', ":", ":id=%s", secinfo->s.plain.username);
virBufferEscape(buf, '\\', ":",
":key=%s:auth_supported=cephx\\;none",
base64secret);
VIR_DISPOSE_STRING(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: boolen 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: boolen 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)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
int ret = -1;
virJSONValuePtr props = NULL;
if (qemuBuildTLSx509BackendProps(tlspath, isListen, verifypeer, alias,
certEncSecretAlias, qemuCaps, &props) < 0)
goto cleanup;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, props) < 0)
goto cleanup;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
ret = 0;
cleanup:
virBufferFreeAndReset(&buf);
virJSONValueFree(props);
return ret;
}
static char *
qemuBuildNetworkDriveURI(virStorageSourcePtr src,
qemuDomainSecretInfoPtr secinfo)
{
virURIPtr uri = NULL;
char *ret = NULL;
if (!(uri = qemuBlockStorageSourceGetURI(src)))
goto cleanup;
if (src->hosts->socket &&
virAsprintf(&uri->query, "socket=%s", src->hosts->socket) < 0)
goto cleanup;
if (qemuBuildGeneralSecinfoURI(uri, secinfo) < 0)
goto cleanup;
ret = virURIFormat(uri);
cleanup:
virURIFree(uri);
return ret;
}
static char *
qemuBuildNetworkDriveStr(virStorageSourcePtr src,
qemuDomainSecretInfoPtr secinfo)
{
char *ret = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
size_t i;
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));
goto cleanup;
}
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"));
goto cleanup;
}
virBufferAsprintf(&buf, "unix:%s", src->hosts->socket);
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("nbd does not support transport '%s'"),
virStorageNetHostTransportTypeToString(src->hosts->transport));
goto cleanup;
}
if (src->path)
virBufferAsprintf(&buf, ":exportname=%s", src->path);
if (virBufferCheckError(&buf) < 0)
goto cleanup;
ret = virBufferContentAndReset(&buf);
goto cleanup;
}
/* 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"));
goto cleanup;
}
if (src->nhosts == 0) {
if (virAsprintf(&ret, "sheepdog:%s", src->path) < 0)
goto cleanup;
} else if (src->nhosts == 1) {
if (virAsprintf(&ret, "sheepdog:%s:%u:%s",
src->hosts->name, src->hosts->port,
src->path) < 0)
goto cleanup;
} else {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("protocol 'sheepdog' accepts up to one host"));
goto cleanup;
}
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);
goto cleanup;
}
virBufferStrcat(&buf, "rbd:", src->volume, "/", src->path, NULL);
if (src->snapshot)
virBufferEscape(&buf, '\\', ":", "@%s", src->snapshot);
if (qemuBuildRBDSecinfoURI(&buf, secinfo) < 0)
goto cleanup;
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);
if (virBufferCheckError(&buf) < 0)
goto cleanup;
ret = virBufferContentAndReset(&buf);
break;
case VIR_STORAGE_NET_PROTOCOL_VXHS:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("VxHS protocol does not support URI syntax"));
goto cleanup;
case VIR_STORAGE_NET_PROTOCOL_SSH:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("'ssh' protocol is not yet supported"));
goto cleanup;
case VIR_STORAGE_NET_PROTOCOL_LAST:
case VIR_STORAGE_NET_PROTOCOL_NONE:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unexpected network protocol '%s'"),
virStorageNetProtocolTypeToString(src->protocol));
goto cleanup;
}
cleanup:
virBufferFreeAndReset(&buf);
return ret;
}
int
qemuGetDriveSourceString(virStorageSourcePtr src,
qemuDomainSecretInfoPtr secinfo,
char **source)
{
int actualType = virStorageSourceGetActualType(src);
int ret = -1;
*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:
if (VIR_STRDUP(*source, src->path) < 0)
goto cleanup;
break;
case VIR_STORAGE_TYPE_NETWORK:
if (!(*source = qemuBuildNetworkDriveStr(src, secinfo)))
goto cleanup;
break;
case VIR_STORAGE_TYPE_VOLUME:
case VIR_STORAGE_TYPE_NONE:
case VIR_STORAGE_TYPE_LAST:
break;
}
ret = 0;
cleanup:
return ret;
}
static bool
qemuDiskConfigBlkdeviotuneHasBasic(virDomainDiskDefPtr disk)
{
return disk->blkdeviotune.total_bytes_sec ||
disk->blkdeviotune.read_bytes_sec ||
disk->blkdeviotune.write_bytes_sec ||
disk->blkdeviotune.total_iops_sec ||
disk->blkdeviotune.read_iops_sec ||
disk->blkdeviotune.write_iops_sec;
}
static bool
qemuDiskConfigBlkdeviotuneHasMax(virDomainDiskDefPtr disk)
{
return disk->blkdeviotune.total_bytes_sec_max ||
disk->blkdeviotune.read_bytes_sec_max ||
disk->blkdeviotune.write_bytes_sec_max ||
disk->blkdeviotune.total_iops_sec_max ||
disk->blkdeviotune.read_iops_sec_max ||
disk->blkdeviotune.write_iops_sec_max ||
disk->blkdeviotune.size_iops_sec;
}
static bool
qemuDiskConfigBlkdeviotuneHasMaxLength(virDomainDiskDefPtr disk)
{
return disk->blkdeviotune.total_bytes_sec_max_length ||
disk->blkdeviotune.read_bytes_sec_max_length ||
disk->blkdeviotune.write_bytes_sec_max_length ||
disk->blkdeviotune.total_iops_sec_max_length ||
disk->blkdeviotune.read_iops_sec_max_length ||
disk->blkdeviotune.write_iops_sec_max_length;
}
bool
qemuDiskConfigBlkdeviotuneEnabled(virDomainDiskDefPtr disk)
{
return !!disk->blkdeviotune.group_name ||
qemuDiskConfigBlkdeviotuneHasBasic(disk) ||
qemuDiskConfigBlkdeviotuneHasMax(disk) ||
qemuDiskConfigBlkdeviotuneHasMaxLength(disk);
}
/**
* qemuCheckDiskConfigBlkdeviotune:
* @disk: disk configuration
* @qemuCaps: qemu capabilities, NULL if checking cold-configuration
*
* Checks whether block io tuning settings make sense. Returns -1 on error and
* reports a proper libvirt error.
*/
static int
qemuCheckDiskConfigBlkdeviotune(virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps)
{
/* group_name by itself is ignored by qemu */
if (disk->blkdeviotune.group_name &&
!qemuDiskConfigBlkdeviotuneHasBasic(disk) &&
!qemuDiskConfigBlkdeviotuneHasMax(disk) &&
!qemuDiskConfigBlkdeviotuneHasMaxLength(disk)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("group_name can be configured only together with "
"settings"));
return -1;
}
if (disk->blkdeviotune.total_bytes_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.read_bytes_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.write_bytes_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.total_iops_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.read_iops_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.write_iops_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.total_bytes_sec_max > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.read_bytes_sec_max > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.write_bytes_sec_max > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.total_iops_sec_max > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.read_iops_sec_max > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.write_iops_sec_max > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.size_iops_sec > QEMU_BLOCK_IOTUNE_MAX) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED,
_("block I/O throttle limit must "
"be no more than %llu using QEMU"), QEMU_BLOCK_IOTUNE_MAX);
return -1;
}
if (qemuCaps) {
/* block I/O throttling 1.7 */
if (qemuDiskConfigBlkdeviotuneHasMax(disk) &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("there are some block I/O throttling parameters "
"that are not supported with this QEMU binary"));
return -1;
}
/* block I/O group 2.4 */
if (disk->blkdeviotune.group_name &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_GROUP)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the block I/O throttling group parameter is "
"not supported with this QEMU binary"));
return -1;
}
/* block I/O throttling length 2.6 */
if (qemuDiskConfigBlkdeviotuneHasMaxLength(disk) &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX_LENGTH)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("there are some block I/O throttling length parameters "
"that are not supported with this QEMU binary"));
return -1;
}
}
return 0;
}
/**
* qemuCheckDiskConfig:
* @disk: disk definition
* @qemuCaps: qemu capabilities, may be NULL for cold-plug check
*
* Perform disk definition config validity checks. Returns -1 on error with
* error reported.
*/
int
qemuCheckDiskConfig(virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps)
{
if (qemuCheckDiskConfigBlkdeviotune(disk, qemuCaps) < 0)
return -1;
if (virDiskNameToIndex(disk->dst) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk type '%s'"), disk->dst);
return -1;
}
if (disk->wwn) {
if ((disk->bus != VIR_DOMAIN_DISK_BUS_IDE) &&
(disk->bus != VIR_DOMAIN_DISK_BUS_SCSI)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Only ide and scsi disk support wwn"));
return -1;
}
}
if ((disk->vendor || disk->product) &&
disk->bus != VIR_DOMAIN_DISK_BUS_SCSI) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Only scsi disk supports vendor and product"));
return -1;
}
if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) {
/* make sure that both the bus supports type='lun' (SG_IO). */
if (disk->bus != VIR_DOMAIN_DISK_BUS_VIRTIO &&
disk->bus != VIR_DOMAIN_DISK_BUS_SCSI) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk device='lun' is not supported for bus='%s'"),
virDomainDiskQEMUBusTypeToString(disk->bus));
return -1;
}
if (disk->bus == VIR_DOMAIN_DISK_BUS_SCSI &&
disk->src->format != VIR_STORAGE_FILE_RAW) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("disk device 'lun' using target 'scsi' must use "
"'raw' format"));
return -1;
}
if (qemuDomainDefValidateDiskLunSource(disk->src) < 0)
return -1;
if (disk->wwn) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Setting wwn is not supported for lun device"));
return -1;
}
if (disk->vendor || disk->product) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Setting vendor or product is not supported "
"for lun device"));
return -1;
}
}
switch (disk->bus) {
case VIR_DOMAIN_DISK_BUS_SCSI:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unexpected address type for scsi disk"));
return -1;
}
/* Setting bus= attr for SCSI drives, causes a controller
* to be created. Yes this is slightly odd. It is not possible
* to have > 1 bus on a SCSI controller (yet). */
if (disk->info.addr.drive.bus != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("SCSI controller only supports 1 bus"));
return -1;
}
break;
case VIR_DOMAIN_DISK_BUS_IDE:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unexpected address type for ide disk"));
return -1;
}
/* We can only have 1 IDE controller (currently) */
if (disk->info.addr.drive.controller != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Only 1 IDE controller is supported"));
return -1;
}
break;
case VIR_DOMAIN_DISK_BUS_FDC:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unexpected address type for fdc disk"));
return -1;
}
/* We can only have 1 FDC controller (currently) */
if (disk->info.addr.drive.controller != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Only 1 fdc controller is supported"));
return -1;
}
/* We can only have 1 FDC bus (currently) */
if (disk->info.addr.drive.bus != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Only 1 fdc bus is supported"));
return -1;
}
if (disk->info.addr.drive.target != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("target must be 0 for controller fdc"));
return -1;
}
break;
case VIR_DOMAIN_DISK_BUS_VIRTIO:
case VIR_DOMAIN_DISK_BUS_XEN:
case VIR_DOMAIN_DISK_BUS_SD:
break;
}
if (disk->src->readonly &&
disk->device == VIR_DOMAIN_DISK_DEVICE_DISK) {
if (disk->bus == VIR_DOMAIN_DISK_BUS_IDE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("readonly ide disks are not supported"));
return -1;
}
if (disk->bus == VIR_DOMAIN_DISK_BUS_SATA) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("readonly sata disks are not supported"));
return -1;
}
}
if (disk->transient) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("transient disks not supported yet"));
return -1;
}
if (disk->iomode == VIR_DOMAIN_DISK_IO_NATIVE &&
disk->cachemode != VIR_DOMAIN_DISK_CACHE_DIRECTSYNC &&
disk->cachemode != VIR_DOMAIN_DISK_CACHE_DISABLE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("native I/O needs either no disk cache "
"or directsync cache mode, QEMU will fallback "
"to aio=threads"));
return -1;
}
if (qemuCaps) {
if (disk->serial &&
disk->bus == VIR_DOMAIN_DISK_BUS_SCSI &&
disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("scsi-block 'lun' devices do not support the "
"serial property"));
return -1;
}
if (disk->discard &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_DISCARD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("discard is not supported by this QEMU binary"));
return -1;
}
if (disk->detect_zeroes &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_DETECT_ZEROES)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("detect_zeroes is not supported by this QEMU binary"));
return -1;
}
}
if (disk->serial &&
qemuSafeSerialParamValue(disk->serial) < 0)
return -1;
return 0;
}
/* 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
*/
bool
qemuCheckFips(void)
{
bool ret = false;
if (virFileExists("/proc/sys/crypto/fips_enabled")) {
char *buf = NULL;
if (virFileReadAll("/proc/sys/crypto/fips_enabled", 10, &buf) < 0)
return ret;
if (STREQ(buf, "1\n"))
ret = true;
VIR_FREE(buf);
}
return ret;
}
/**
* qemuDiskBusNeedsDriveArg:
* @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
qemuDiskBusNeedsDriveArg(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;
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)
{
virJSONValuePtr props;
virJSONValuePtr ret;
if (!(props = qemuBlockStorageSourceGetBackendProps(src, true)))
return NULL;
if (virJSONValueObjectCreate(&ret, "a:file", &props, NULL) < 0) {
virJSONValueFree(props);
return NULL;
}
return ret;
}
static int
qemuBuildDriveSourcePR(virBufferPtr buf,
virDomainDiskDefPtr disk)
{
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);
VIR_FREE(alias);
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;
virJSONValuePtr srcprops = NULL;
char *source = NULL;
bool rawluks = false;
int ret = -1;
if (srcpriv) {
secinfo = srcpriv->secinfo;
encinfo = srcpriv->encinfo;
}
if (qemuDiskSourceNeedsProps(disk->src, qemuCaps) &&
!(srcprops = qemuDiskSourceGetProps(disk->src)))
goto cleanup;
if (!srcprops &&
qemuGetDriveSourceString(disk->src, secinfo, &source) < 0)
goto cleanup;
/* 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)) {
ret = 0;
goto cleanup;
}
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"));
goto cleanup;
}
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)
goto cleanup;
} else {
if (!(source = virQEMUBuildDriveCommandlineFromJSON(srcprops)))
goto cleanup;
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 &&
disk->src->type != VIR_STORAGE_TYPE_DIR) {
const char *qemuformat = virStorageFileFormatTypeToString(disk->src->format);
if (rawluks)
qemuformat = "luks";
virBufferAsprintf(buf, "format=%s,", qemuformat);
}
ret = 0;
cleanup:
VIR_FREE(source);
virJSONValueFree(srcprops);
return ret;
}
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)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
int detect_zeroes = virDomainDiskGetDetectZeroesMode(disk->discard,
disk->detect_zeroes);
if (qemuBuildDriveSourceStr(disk, qemuCaps, &opt) < 0)
goto error;
if (!qemuDiskBusNeedsDriveArg(disk->bus)) {
char *drivealias = qemuAliasDiskDriveFromDisk(disk);
if (!drivealias)
goto error;
virBufferAddLit(&opt, "if=none");
virBufferAsprintf(&opt, ",id=%s", drivealias);
VIR_FREE(drivealias);
} else {
int idx = virDiskNameToIndex(disk->dst);
if (idx < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk type '%s'"), disk->dst);
goto error;
}
/* if we are using -device this will be checked elsewhere */
if (qemuCheckDiskConfig(disk, qemuCaps) < 0)
goto error;
virBufferAsprintf(&opt, "if=%s",
virDomainDiskQEMUBusTypeToString(disk->bus));
virBufferAsprintf(&opt, ",index=%d", idx);
}
/* werror/rerror are really frontend attributes, but older
* qemu requires them on -drive instead of -device */
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_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);
if (virBufferCheckError(&opt) < 0)
goto error;
return virBufferContentAndReset(&opt);
error:
virBufferFreeAndReset(&opt);
return NULL;
}
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)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
const char *bus = virDomainDiskQEMUBusTypeToString(disk->bus);
const char *contAlias;
char *backendAlias = NULL;
VIR_AUTOFREE(char *) scsiVPDDeviceId = NULL;
int controllerModel;
if (qemuCheckDiskConfig(disk, qemuCaps) < 0)
goto error;
if (!qemuDomainCheckCCWS390AddressSupport(def, &disk->info, qemuCaps, disk->dst))
goto error;
if (disk->iothread && !qemuCheckIOThreads(def, disk))
goto error;
switch ((virDomainDiskBus) disk->bus) {
case VIR_DOMAIN_DISK_BUS_IDE:
if (disk->info.addr.drive.target != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("target must be 0 for ide controller"));
goto error;
}
if (disk->wwn &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_IDE_DRIVE_WWN)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Setting wwn for ide disk is not supported "
"by this QEMU"));
goto error;
}
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)))
goto error;
}
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:
if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_BLOCK)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support scsi-block for "
"lun passthrough"));
goto error;
}
}
if (disk->wwn &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_DISK_WWN)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Setting wwn for scsi disk is not supported "
"by this QEMU"));
goto error;
}
/* Properties wwn, vendor and product were introduced in the
* same QEMU release (1.2.0).
*/
if ((disk->vendor || disk->product) &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_DISK_WWN)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Setting vendor or product for scsi disk is not "
"supported by this QEMU"));
goto error;
}
controllerModel = qemuDomainFindSCSIControllerModel(def, &disk->info);
if (controllerModel < 0)
goto error;
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) {
if (VIR_STRDUP(scsiVPDDeviceId, disk->serial) < 0)
goto error;
} else {
if (!(scsiVPDDeviceId = qemuAliasDiskDriveFromDisk(disk)))
goto error;
}
}
}
if (!(contAlias = virDomainControllerAliasFind(def, VIR_DOMAIN_CONTROLLER_TYPE_SCSI,
disk->info.addr.drive.controller)))
goto error;
if (controllerModel == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC) {
if (disk->info.addr.drive.target != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("target must be 0 for controller "
"model 'lsilogic'"));
goto error;
}
virBufferAsprintf(&opt, ",bus=%s.%d,scsi-id=%d",
contAlias,
disk->info.addr.drive.bus,
disk->info.addr.drive.unit);
} else {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_DISK_CHANNEL)) {
if (disk->info.addr.drive.target > 7) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support target "
"greater than 7"));
goto error;
}
if (disk->info.addr.drive.bus != 0 &&
disk->info.addr.drive.unit != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU only supports both bus and "
"unit equal to 0"));
goto error;
}
}
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);
}
if (scsiVPDDeviceId)
virBufferStrcat(&opt, ",device_id=", scsiVPDDeviceId, NULL);
break;
case VIR_DOMAIN_DISK_BUS_SATA:
if (disk->info.addr.drive.bus != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("bus must be 0 for ide controller"));
goto error;
}
if (disk->info.addr.drive.target != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("target must be 0 for ide controller"));
goto error;
}
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)))
goto error;
}
virBufferAsprintf(&opt, ",bus=%s.%d",
contAlias,
disk->info.addr.drive.unit);
break;
case VIR_DOMAIN_DISK_BUS_VIRTIO:
if (qemuBuildVirtioDevStr(&opt, "virtio-blk", qemuCaps,
VIR_DOMAIN_DEVICE_DISK, disk) < 0) {
goto error;
}
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)) {
/* 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) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BLK_NUM_QUEUES)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("num-queues property isn't supported by this "
"QEMU binary"));
goto error;
}
virBufferAsprintf(&opt, ",num-queues=%u", disk->queues);
}
if (qemuBuildVirtioOptionsStr(&opt, disk->virtio, qemuCaps) < 0)
goto error;
if (qemuBuildDeviceAddressStr(&opt, def, &disk->info, qemuCaps) < 0)
goto error;
break;
case VIR_DOMAIN_DISK_BUS_USB:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unexpected address type for usb disk"));
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_USB_STORAGE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support '-device "
"usb-storage'"));
goto error;
}
virBufferAddLit(&opt, "usb-storage");
if (qemuBuildDeviceAddressStr(&opt, def, &disk->info, qemuCaps) < 0)
goto error;
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"), bus);
goto error;
}
if (disk->src->shared &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DISK_SHARE_RW))
virBufferAddLit(&opt, ",share-rw=on");
if (qemuDomainDiskGetBackendAlias(disk, qemuCaps, &backendAlias) < 0)
goto error;
if (backendAlias)
virBufferAsprintf(&opt, ",drive=%s", backendAlias);
VIR_FREE(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->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");
} else {
if (disk->removable != VIR_TRISTATE_SWITCH_ABSENT) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support setting the "
"removable flag of USB storage devices"));
goto error;
}
}
}
if (qemuBuildDriveDevCacheStr(disk, &opt, qemuCaps) < 0)
goto error;
qemuBuildDiskFrontendAttributes(disk, &opt);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_STORAGE_WERROR))
qemuBuildDiskFrontendAttributeErrorPolicy(disk, &opt);
if (virBufferCheckError(&opt) < 0)
goto error;
return virBufferContentAndReset(&opt);
error:
VIR_FREE(backendAlias);
virBufferFreeAndReset(&opt);
return NULL;
}
char *
qemuBuildZPCIDevStr(virDomainDeviceInfoPtr dev)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virBufferAsprintf(&buf,
"zpci,uid=%u,fid=%u,target=%s,id=zpci%u",
dev->addr.pci.zpci.uid,
dev->addr.pci.zpci.fid,
dev->alias,
dev->addr.pci.zpci.uid);
if (virBufferCheckError(&buf) < 0) {
virBufferFreeAndReset(&buf);
return NULL;
}
return virBufferContentAndReset(&buf);
}
static int
qemuCommandAddZPCIDevice(virCommandPtr cmd,
virDomainDeviceInfoPtr dev)
{
char *devstr = NULL;
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildZPCIDevStr(dev)))
return -1;
virCommandAddArg(cmd, devstr);
VIR_FREE(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)
{
virBuffer fdc_opts = VIR_BUFFER_INITIALIZER;
bool explicitfdc = qemuDomainNeedsFDC(def);
bool hasfloppy = false;
unsigned int bootindex;
char driveLetter;
char *backendAlias = NULL;
char *backendStr = NULL;
char *bootindexStr = NULL;
size_t i;
int ret = -1;
virBufferAddLit(&fdc_opts, "isa-fdc,");
for (i = 0; i < def->ndisks; i++) {
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 &&
virAsprintf(&bootindexStr, "bootindex%c=%u", driveLetter, bootindex) < 0)
goto cleanup;
/* 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)
goto cleanup;
if (backendAlias &&
virAsprintf(&backendStr, "drive%c=%s", driveLetter, backendAlias) < 0)
goto cleanup;
}
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);
}
VIR_FREE(backendAlias);
VIR_FREE(backendStr);
VIR_FREE(bootindexStr);
}
if (explicitfdc && hasfloppy) {
/* Newer Q35 machine types require an explicit FDC controller */
virBufferTrim(&fdc_opts, ",", -1);
virCommandAddArg(cmd, "-device");
virCommandAddArgBuffer(cmd, &fdc_opts);
}
ret = 0;
cleanup:
VIR_FREE(backendAlias);
VIR_FREE(backendStr);
VIR_FREE(bootindexStr);
virBufferFreeAndReset(&fdc_opts);
return ret;
}
static int
qemuBuildObjectCommandline(virCommandPtr cmd,
virJSONValuePtr objProps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (!objProps)
return 0;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, objProps) < 0) {
virBufferFreeAndReset(&buf);
return -1;
}
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static int
qemuBuildBlockStorageSourceAttachDataCommandline(virCommandPtr cmd,
qemuBlockStorageSourceAttachDataPtr data)
{
char *tmp;
if (qemuBuildObjectCommandline(cmd, data->prmgrProps) < 0 ||
qemuBuildObjectCommandline(cmd, data->authsecretProps) < 0 ||
qemuBuildObjectCommandline(cmd, data->encryptsecretProps) < 0 ||
qemuBuildObjectCommandline(cmd, data->tlsProps) < 0)
return -1;
if (data->driveCmd)
virCommandAddArgList(cmd, "-drive", data->driveCmd, NULL);
if (data->storageProps) {
if (!(tmp = virJSONValueToString(data->storageProps, 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)
{
qemuBlockStorageSourceAttachDataPtr *data = NULL;
size_t ndata = 0;
qemuBlockStorageSourceAttachDataPtr tmp = NULL;
virJSONValuePtr copyOnReadProps = NULL;
virStorageSourcePtr n;
char *str = NULL;
size_t i;
int ret = -1;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV)) {
if (virStorageSourceIsEmpty(disk->src)) {
ret = 0;
goto cleanup;
}
for (n = disk->src; virStorageSourceIsBacking(n); n = n->backingStore) {
if (!(tmp = qemuBlockStorageSourceAttachPrepareBlockdev(n)))
goto cleanup;
if (qemuBuildStorageSourceAttachPrepareCommon(n, tmp, qemuCaps) < 0)
goto cleanup;
if (VIR_APPEND_ELEMENT(data, ndata, tmp) < 0)
goto cleanup;
}
if (disk->copy_on_read == VIR_TRISTATE_SWITCH_ON &&
!(copyOnReadProps = qemuBlockStorageGetCopyOnReadProps(disk)))
goto cleanup;
} else {
if (!(tmp = qemuBuildStorageSourceAttachPrepareDrive(disk, qemuCaps)))
goto cleanup;
if (qemuBuildStorageSourceAttachPrepareCommon(disk->src, tmp,
qemuCaps) < 0)
goto cleanup;
if (VIR_APPEND_ELEMENT(data, ndata, tmp) < 0)
goto cleanup;
}
for (i = ndata; i > 0; i--) {
if (qemuBuildBlockStorageSourceAttachDataCommandline(cmd,
data[i - 1]) < 0)
goto cleanup;
}
if (copyOnReadProps) {
if (!(str = virJSONValueToString(copyOnReadProps, false)))
goto cleanup;
virCommandAddArgList(cmd, "-blockdev", str, NULL);
VIR_FREE(str);
}
ret = 0;
cleanup:
for (i = 0; i < ndata; i++)
qemuBlockStorageSourceAttachDataFree(data[i]);
VIR_FREE(data);
qemuBlockStorageSourceAttachDataFree(tmp);
virJSONValueFree(copyOnReadProps);
VIR_FREE(str);
return ret;
}
static int
qemuBuildDiskCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps,
unsigned int bootindex)
{
char *optstr;
if (qemuBuildDiskSourceCommandLine(cmd, disk, qemuCaps) < 0)
return -1;
if (!qemuDiskBusNeedsDriveArg(disk->bus)) {
if (disk->bus != VIR_DOMAIN_DISK_BUS_FDC ||
virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV)) {
if (qemuCommandAddExtDevice(cmd, &disk->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildDiskDeviceStr(def, disk, bootindex,
qemuCaps)))
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(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 char *
qemuBuildFSStr(virDomainFSDefPtr fs)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
const char *driver = qemuDomainFSDriverTypeToString(fs->fsdriver);
const char *wrpolicy = virDomainFSWrpolicyTypeToString(fs->wrpolicy);
if (fs->type != VIR_DOMAIN_FS_TYPE_MOUNT) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only supports mount filesystem type"));
goto error;
}
if (!driver) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Filesystem driver type not supported"));
goto error;
}
virBufferAdd(&opt, driver, -1);
if (fs->fsdriver == VIR_DOMAIN_FS_DRIVER_TYPE_PATH ||
fs->fsdriver == VIR_DOMAIN_FS_DRIVER_TYPE_DEFAULT) {
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");
}
} else {
/* For other fs drivers, default(passthru) should always
* be supported */
if (fs->accessmode != VIR_DOMAIN_FS_ACCESSMODE_PASSTHROUGH) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only supports passthrough accessmode"));
goto error;
}
}
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");
if (virBufferCheckError(&opt) < 0)
goto error;
return virBufferContentAndReset(&opt);
error:
virBufferFreeAndReset(&opt);
return NULL;
}
static char *
qemuBuildFSDevStr(const virDomainDef *def,
virDomainFSDefPtr fs,
virQEMUCapsPtr qemuCaps)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
if (fs->type != VIR_DOMAIN_FS_TYPE_MOUNT) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("can only passthrough directories"));
goto error;
}
if (qemuBuildVirtioDevStr(&opt, "virtio-9p", qemuCaps,
VIR_DOMAIN_DEVICE_FS, fs) < 0) {
goto error;
}
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);
if (qemuBuildVirtioOptionsStr(&opt, fs->virtio, qemuCaps) < 0)
goto error;
if (qemuBuildDeviceAddressStr(&opt, def, &fs->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&opt) < 0)
goto error;
return virBufferContentAndReset(&opt);
error:
virBufferFreeAndReset(&opt);
return NULL;
}
static int
qemuBuildFSDevCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->nfss; i++) {
char *optstr;
virDomainFSDefPtr fs = def->fss[i];
virCommandAddArg(cmd, "-fsdev");
if (!(optstr = qemuBuildFSStr(fs)))
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
if (qemuCommandAddExtDevice(cmd, &fs->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildFSDevStr(def, fs, qemuCaps)))
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
}
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)
{
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) {
goto error;
}
if (def->iothread) {
virBufferAsprintf(&buf, ",iothread=iothread%u",
def->iothread);
}
if (qemuBuildVirtioOptionsStr(&buf, def->virtio, qemuCaps) < 0)
goto error;
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_AUTO:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_BUSLOGIC:
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VMPVSCSI:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Unsupported controller model: %s"),
virDomainControllerModelSCSITypeToString(def->model));
goto error;
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);
goto error;
}
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) {
goto error;
}
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);
}
if (qemuBuildVirtioOptionsStr(&buf, def->virtio, qemuCaps) < 0)
goto error;
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)
goto error;
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) {
goto done;
}
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);
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"));
goto error;
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);
goto error;
}
break;
}
case VIR_DOMAIN_CONTROLLER_TYPE_IDE:
case VIR_DOMAIN_CONTROLLER_TYPE_FDC:
case VIR_DOMAIN_CONTROLLER_TYPE_XENBUS:
case VIR_DOMAIN_CONTROLLER_TYPE_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Unsupported controller type: %s"),
virDomainControllerTypeToString(def->type));
goto error;
}
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)
goto error;
done:
if (virBufferCheckError(&buf) < 0)
goto error;
*devstr = virBufferContentAndReset(&buf);
return 0;
error:
virBufferFreeAndReset(&buf);
return -1;
}
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;
return false;
}
static int
qemuBuildControllersByTypeCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
virDomainControllerType type)
{
char *devstr = NULL;
int ret = -1;
size_t i;
for (i = 0; i < def->ncontrollers; i++) {
virDomainControllerDefPtr cont = def->controllers[i];
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;
}
VIR_FREE(devstr);
if (qemuBuildControllerDevStr(def, cont, qemuCaps, &devstr) < 0)
goto cleanup;
if (devstr) {
if (qemuCommandAddExtDevice(cmd, &cont->info) < 0)
goto cleanup;
virCommandAddArg(cmd, "-device");
virCommandAddArg(cmd, devstr);
}
}
ret = 0;
cleanup:
VIR_FREE(devstr);
return ret;
}
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,
};
int ret = -1;
for (i = 0; i < ARRAY_CARDINALITY(contOrder); i++) {
if (qemuBuildControllersByTypeCommandLine(cmd, def, qemuCaps, contOrder[i]) < 0)
goto cleanup;
}
if (qemuBuildLegacyUSBControllerCommandLine(cmd, def) < 0)
goto cleanup;
ret = 0;
cleanup:
return ret;
}
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;
}
/**
* 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,
virDomainDefPtr def,
virDomainMemoryDefPtr mem,
bool force)
{
const char *backendType = "memory-backend-file";
virDomainNumatuneMemMode mode;
const long system_page_size = virGetSystemPageSizeKB();
virDomainMemoryAccess memAccess = mem->access;
size_t i;
char *memPath = NULL;
bool prealloc = false;
virBitmapPtr nodemask = NULL;
int ret = -1;
virJSONValuePtr 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;
/* 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 (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 <page/> 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 (<page/> 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;
}
if (!(props = virJSONValueNewObject()))
return -1;
if (def->mem.source == VIR_DOMAIN_MEMORY_SOURCE_MEMFD) {
backendType = "memory-backend-memfd";
if (useHugepage &&
(virJSONValueObjectAdd(props, "b:hugetlb", useHugepage, NULL) < 0 ||
virJSONValueObjectAdd(props, "U:hugetlbsize", pagesize << 10, NULL) < 0)) {
goto cleanup;
}
if (qemuBuildMemoryBackendPropsShare(props, memAccess) < 0)
goto cleanup;
} else if (useHugepage || mem->nvdimmPath || memAccess ||
def->mem.source == VIR_DOMAIN_MEMORY_SOURCE_FILE) {
if (mem->nvdimmPath) {
if (VIR_STRDUP(memPath, mem->nvdimmPath) < 0)
goto cleanup;
if (!priv->memPrealloc)
prealloc = true;
} else if (useHugepage) {
if (qemuGetDomainHupageMemPath(def, cfg, pagesize, &memPath) < 0)
goto cleanup;
if (!priv->memPrealloc)
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(def, cfg, mem->info.alias, &memPath) < 0)
goto cleanup;
}
if (virJSONValueObjectAdd(props,
"B:prealloc", prealloc,
"s:mem-path", memPath,
NULL) < 0)
goto cleanup;
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"));
goto cleanup;
}
if (virJSONValueObjectAdd(props,
"B:discard-data", true,
NULL) < 0)
goto cleanup;
}
if (qemuBuildMemoryBackendPropsShare(props, memAccess) < 0)
goto cleanup;
} else {
backendType = "memory-backend-ram";
}
if (virJSONValueObjectAdd(props, "U:size", mem->size * 1024, NULL) < 0)
goto cleanup;
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"));
goto cleanup;
}
if (virJSONValueObjectAdd(props, "U:align", mem->alignsize * 1024, NULL) < 0)
goto cleanup;
}
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"));
goto cleanup;
}
if (virJSONValueObjectAdd(props, "s:pmem", "on", NULL) < 0)
goto cleanup;
}
if (mem->sourceNodes) {
nodemask = mem->sourceNodes;
} else {
if (virDomainNumatuneMaybeGetNodeset(def->numa, priv->autoNodeset,
&nodemask, mem->targetNode) < 0)
goto cleanup;
}
if (nodemask) {
if (!virNumaNodesetIsAvailable(nodemask))
goto cleanup;
if (virJSONValueObjectAdd(props,
"m:host-nodes", nodemask,
"S:policy", qemuNumaPolicyTypeToString(mode),
NULL) < 0)
goto cleanup;
}
/* 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 */
ret = 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"));
goto cleanup;
} 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"));
goto cleanup;
} else if (STREQ(backendType, "memory-backend-memory") &&
!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_MEMORY_MEMFD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this qemu doesn't support the "
"memory-backend-memfd object"));
goto cleanup;
}
ret = 0;
}
if (!(*backendProps = qemuMonitorCreateObjectPropsWrap(backendType, alias,
&props)))
ret = -1;
cleanup:
virJSONValueFree(props);
VIR_FREE(memPath);
return ret;
}
static int
qemuBuildMemoryCellBackendStr(virDomainDefPtr def,
virQEMUDriverConfigPtr cfg,
size_t cell,
qemuDomainObjPrivatePtr priv,
virBufferPtr buf)
{
virJSONValuePtr props = NULL;
char *alias = NULL;
int ret = -1;
int rc;
virDomainMemoryDef mem = { 0 };
unsigned long long memsize = virDomainNumaGetNodeMemorySize(def->numa,
cell);
if (virAsprintf(&alias, "ram-node%zu", cell) < 0)
goto cleanup;
mem.size = memsize;
mem.targetNode = cell;
mem.info.alias = alias;
if ((rc = qemuBuildMemoryBackendProps(&props, alias, cfg,
priv, def, &mem, false)) < 0)
goto cleanup;
if (virQEMUBuildObjectCommandlineFromJSON(buf, props) < 0)
goto cleanup;
ret = rc;
cleanup:
VIR_FREE(alias);
virJSONValueFree(props);
return ret;
}
static int
qemuBuildMemoryDimmBackendStr(virBufferPtr buf,
virDomainMemoryDefPtr mem,
virDomainDefPtr def,
virQEMUDriverConfigPtr cfg,
qemuDomainObjPrivatePtr priv)
{
virJSONValuePtr props = NULL;
char *alias = NULL;
int ret = -1;
if (!mem->info.alias) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("memory device alias is not assigned"));
return -1;
}
if (virAsprintf(&alias, "mem%s", mem->info.alias) < 0)
goto cleanup;
if (qemuBuildMemoryBackendProps(&props, alias, cfg,
priv, def, mem, true) < 0)
goto cleanup;
if (virQEMUBuildObjectCommandlineFromJSON(buf, props) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(alias);
virJSONValueFree(props);
return ret;
}
char *
qemuBuildMemoryDeviceStr(virDomainMemoryDefPtr mem,
qemuDomainObjPrivatePtr priv)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *device;
if (!mem->info.alias) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing alias for memory device"));
return NULL;
}
switch ((virDomainMemoryModel) mem->model) {
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
if (mem->model == VIR_DOMAIN_MEMORY_MODEL_DIMM)
device = "pc-dimm";
else
device = "nvdimm";
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->readonly) {
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE_NVDIMM_UNARMED)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("nvdimm readonly property is not available "
"with this QEMU binary"));
return NULL;
}
virBufferAddLit(&buf, "unarmed=on,");
}
virBufferAsprintf(&buf, "memdev=mem%s,id=%s",
mem->info.alias, mem->info.alias);
if (mem->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DIMM) {
virBufferAsprintf(&buf, ",slot=%d", mem->info.addr.dimm.slot);
if (mem->info.addr.dimm.base)
virBufferAsprintf(&buf, ",addr=%llu", mem->info.addr.dimm.base);
}
break;
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
}
if (virBufferCheckError(&buf) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static char *
qemuBuildLegacyNicStr(virDomainNetDefPtr net)
{
char *str;
char macaddr[VIR_MAC_STRING_BUFLEN];
ignore_value(virAsprintf(&str,
"nic,macaddr=%s,netdev=host%s%s%s%s%s",
virMacAddrFormat(&net->mac, macaddr),
net->info.alias,
(net->model ? ",model=" : ""),
NULLSTR_EMPTY(net->model),
(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)
{
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) {
goto error;
}
usingVirtio = true;
} else {
virBufferAddStr(&buf, net->model);
}
if (usingVirtio && net->driver.virtio.txmode) {
if (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);
goto error;
}
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtio-net-pci 'tx' option not supported in this QEMU binary"));
goto error;
}
}
if (usingVirtio) {
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 (usingVirtio && 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 (usingVirtio && net->driver.virtio.rx_queue_size) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_NET_RX_QUEUE_SIZE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtio rx_queue_size option is not supported with this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, ",rx_queue_size=%u", net->driver.virtio.rx_queue_size);
}
if (usingVirtio && net->driver.virtio.tx_queue_size) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_NET_TX_QUEUE_SIZE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtio tx_queue_size option is not supported with this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, ",tx_queue_size=%u", net->driver.virtio.tx_queue_size);
}
if (usingVirtio && net->mtu) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_NET_HOST_MTU)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("setting MTU is not supported with this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, ",host_mtu=%u", net->mtu);
}
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)
goto error;
if (qemuBuildRomStr(&buf, &net->info) < 0)
goto error;
if (bootindex)
virBufferAsprintf(&buf, ",bootindex=%u", bootindex);
if (usingVirtio &&
qemuBuildVirtioOptionsStr(&buf, net->virtio, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildHostNetStr(virDomainNetDefPtr net,
virQEMUDriverPtr driver,
char **tapfd,
size_t tapfdSize,
char **vhostfd,
size_t vhostfdSize)
{
bool is_tap = false;
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainNetType netType = virDomainNetGetActualType(net);
virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
size_t i;
char *addr = NULL;
char *ret = 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));
goto cleanup;
}
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:
virBufferAddLit(&buf, "tap,");
/* for one tapfd 'fd=' shall be used,
* for more than one 'fds=' is the right choice */
if (tapfdSize == 1) {
virBufferAsprintf(&buf, "fd=%s,", tapfd[0]);
} else {
virBufferAddLit(&buf, "fds=");
for (i = 0; i < tapfdSize; i++) {
if (i)
virBufferAddChar(&buf, ':');
virBufferAdd(&buf, tapfd[i], -1);
}
virBufferAddChar(&buf, ',');
}
is_tap = true;
break;
case VIR_DOMAIN_NET_TYPE_CLIENT:
virBufferAsprintf(&buf, "socket,connect=%s:%d,",
net->data.socket.address,
net->data.socket.port);
break;
case VIR_DOMAIN_NET_TYPE_SERVER:
virBufferAsprintf(&buf, "socket,listen=%s:%d,",
NULLSTR_EMPTY(net->data.socket.address),
net->data.socket.port);
break;
case VIR_DOMAIN_NET_TYPE_MCAST:
virBufferAsprintf(&buf, "socket,mcast=%s:%d,",
net->data.socket.address,
net->data.socket.port);
break;
case VIR_DOMAIN_NET_TYPE_UDP:
virBufferAsprintf(&buf, "socket,udp=%s:%d,localaddr=%s:%d,",
net->data.socket.address,
net->data.socket.port,
net->data.socket.localaddr,
net->data.socket.localport);
break;
case VIR_DOMAIN_NET_TYPE_USER:
virBufferAddLit(&buf, "user,");
for (i = 0; i < net->guestIP.nips; i++) {
const virNetDevIPAddr *ip = net->guestIP.ips[i];
const char *prefix = "";
if (!(addr = virSocketAddrFormat(&ip->address)))
goto cleanup;
if (VIR_SOCKET_ADDR_IS_FAMILY(&ip->address, AF_INET))
prefix = "net=";
if (VIR_SOCKET_ADDR_IS_FAMILY(&ip->address, AF_INET6))
prefix = "ipv6-net=";
virBufferAsprintf(&buf, "%s%s", prefix, addr);
if (ip->prefix)
virBufferAsprintf(&buf, "/%u", ip->prefix);
virBufferAddChar(&buf, ',');
VIR_FREE(addr);
}
break;
case VIR_DOMAIN_NET_TYPE_INTERNAL:
virBufferAddLit(&buf, "user,");
break;
case VIR_DOMAIN_NET_TYPE_VHOSTUSER:
virBufferAsprintf(&buf, "vhost-user,chardev=char%s,",
net->info.alias);
if (net->driver.virtio.queues > 1)
virBufferAsprintf(&buf, "queues=%u,",
net->driver.virtio.queues);
break;
case VIR_DOMAIN_NET_TYPE_HOSTDEV:
/* Should have been handled earlier via PCI/USB hotplug code. */
case VIR_DOMAIN_NET_TYPE_LAST:
break;
}
virBufferAsprintf(&buf, "id=host%s,", net->info.alias);
if (is_tap) {
if (vhostfdSize) {
virBufferAddLit(&buf, "vhost=on,");
if (vhostfdSize == 1) {
virBufferAsprintf(&buf, "vhostfd=%s,", vhostfd[0]);
} else {
virBufferAddLit(&buf, "vhostfds=");
for (i = 0; i < vhostfdSize; i++) {
if (i)
virBufferAddChar(&buf, ':');
virBufferAdd(&buf, vhostfd[i], -1);
}
virBufferAddChar(&buf, ',');
}
}
if (net->tune.sndbuf_specified)
virBufferAsprintf(&buf, "sndbuf=%lu,", net->tune.sndbuf);
}
virBufferTrim(&buf, ",", -1);
if (virBufferCheckError(&buf) < 0)
goto cleanup;
ret = virBufferContentAndReset(&buf);
cleanup:
virBufferFreeAndReset(&buf);
virObjectUnref(cfg);
VIR_FREE(addr);
return ret;
}
char *
qemuBuildWatchdogDevStr(const virDomainDef *def,
virDomainWatchdogDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *model = virDomainWatchdogModelTypeToString(dev->model);
if (!model) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing watchdog model"));
goto error;
}
virBufferAsprintf(&buf, "%s,id=%s", model, dev->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildWatchdogCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virDomainWatchdogDefPtr watchdog = def->watchdog;
char *optstr;
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);
VIR_FREE(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)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (!virDomainDefHasMemballoon(def))
return 0;
if (qemuBuildVirtioDevStr(&buf, "virtio-balloon", qemuCaps,
VIR_DOMAIN_DEVICE_MEMBALLOON,
def->memballoon) < 0) {
goto error;
}
virBufferAsprintf(&buf, ",id=%s", def->memballoon->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &def->memballoon->info, qemuCaps) < 0)
goto error;
if (def->memballoon->autodeflate != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(&buf, ",deflate-on-oom=%s",
virTristateSwitchTypeToString(def->memballoon->autodeflate));
}
if (qemuBuildVirtioOptionsStr(&buf, def->memballoon->virtio, qemuCaps) < 0)
goto error;
if (qemuCommandAddExtDevice(cmd, &def->memballoon->info) < 0)
goto error;
virCommandAddArg(cmd, "-device");
virCommandAddArgBuffer(cmd, &buf);
return 0;
error:
virBufferFreeAndReset(&buf);
return -1;
}
static char *
qemuBuildNVRAMDevStr(virDomainNVRAMDefPtr dev)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO &&
dev->info.addr.spaprvio.has_reg) {
virBufferAsprintf(&buf, "spapr-nvram.reg=0x%llx",
dev->info.addr.spaprvio.reg);
} else {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("nvram address type must be spaprvio"));
goto error;
}
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildNVRAMCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
if (!def->nvram)
return 0;
if (qemuDomainIsPSeries(def)) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_NVRAM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("nvram device is not supported by "
"this QEMU binary"));
return -1;
}
char *optstr;
virCommandAddArg(cmd, "-global");
optstr = qemuBuildNVRAMDevStr(def->nvram);
if (!optstr)
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("nvram device is only supported for PPC64"));
return -1;
}
return 0;
}
static char *
qemuBuildVirtioInputDevStr(const virDomainDef *def,
virDomainInputDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
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) {
goto error;
}
break;
case VIR_DOMAIN_INPUT_TYPE_TABLET:
if (qemuBuildVirtioDevStr(&buf, "virtio-tablet", qemuCaps,
VIR_DOMAIN_DEVICE_INPUT, dev) < 0) {
goto error;
}
break;
case VIR_DOMAIN_INPUT_TYPE_KBD:
if (qemuBuildVirtioDevStr(&buf, "virtio-keyboard", qemuCaps,
VIR_DOMAIN_DEVICE_INPUT, dev) < 0) {
goto error;
}
break;
case VIR_DOMAIN_INPUT_TYPE_PASSTHROUGH:
if (qemuBuildVirtioDevStr(&buf, "virtio-input-host", qemuCaps,
VIR_DOMAIN_DEVICE_INPUT, dev) < 0) {
goto error;
}
break;
case VIR_DOMAIN_INPUT_TYPE_LAST:
default:
virReportEnumRangeError(virDomainInputType, dev->type);
goto error;
}
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)
goto error;
if (qemuBuildVirtioOptionsStr(&buf, dev->virtio, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildUSBInputDevStr(const virDomainDef *def,
virDomainInputDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
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:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_USB_KBD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("usb keyboard is not supported by this "
"QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "usb-kbd,id=%s", dev->info.alias);
break;
}
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
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];
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);
}
VIR_FREE(devstr);
}
return 0;
}
static char *
qemuBuildSoundDevStr(const virDomainDef *def,
virDomainSoundDefPtr sound,
virQEMUCapsPtr qemuCaps)
{
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";
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_USB_AUDIO)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("usb-audio controller is not supported "
"by this QEMU binary"));
goto error;
}
break;
case VIR_DOMAIN_SOUND_MODEL_ICH9:
model = "ich9-intel-hda";
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_ICH9_INTEL_HDA)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("The ich9-intel-hda audio controller "
"is not supported in this QEMU binary"));
goto error;
}
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_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("sound card model '%s' is not supported by qemu"),
virDomainSoundModelTypeToString(sound->model));
goto error;
}
virBufferAsprintf(&buf, "%s,id=%s", model, sound->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &sound->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuSoundCodecTypeToCaps(int type)
{
switch (type) {
case VIR_DOMAIN_SOUND_CODEC_TYPE_DUPLEX:
return QEMU_CAPS_HDA_DUPLEX;
case VIR_DOMAIN_SOUND_CODEC_TYPE_MICRO:
return QEMU_CAPS_HDA_MICRO;
case VIR_DOMAIN_SOUND_CODEC_TYPE_OUTPUT:
return QEMU_CAPS_HDA_OUTPUT;
default:
return -1;
}
}
static char *
qemuBuildSoundCodecStr(virDomainSoundDefPtr sound,
virDomainSoundCodecDefPtr codec,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *stype;
int type, flags;
type = codec->type;
stype = qemuSoundCodecTypeToString(type);
flags = qemuSoundCodecTypeToCaps(type);
if (flags == -1 || !virQEMUCapsGet(qemuCaps, flags)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("%s not supported in this QEMU binary"), stype);
goto error;
}
virBufferAsprintf(&buf, "%s,id=%s-codec%d,bus=%s.0,cad=%d",
stype, sound->info.alias, codec->cad, sound->info.alias, codec->cad);
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
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];
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);
VIR_FREE(str);
if (sound->model == VIR_DOMAIN_SOUND_MODEL_ICH6 ||
sound->model == VIR_DOMAIN_SOUND_MODEL_ICH9) {
char *codecstr = NULL;
for (j = 0; j < sound->ncodecs; j++) {
virCommandAddArg(cmd, "-device");
if (!(codecstr =
qemuBuildSoundCodecStr(sound, sound->codecs[j],
qemuCaps))) {
return -1;
}
virCommandAddArg(cmd, codecstr);
VIR_FREE(codecstr);
}
if (j == 0) {
virDomainSoundCodecDef codec = {
VIR_DOMAIN_SOUND_CODEC_TYPE_DUPLEX,
0
};
virCommandAddArg(cmd, "-device");
if (!(codecstr =
qemuBuildSoundCodecStr(sound, &codec,
qemuCaps))) {
return -1;
}
virCommandAddArg(cmd, codecstr);
VIR_FREE(codecstr);
}
}
}
}
return 0;
}
static char *
qemuBuildDeviceVideoStr(const virDomainDef *def,
virDomainVideoDefPtr video,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *model;
/* 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->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));
goto error;
}
if (STREQ(model, "virtio-gpu")) {
if (qemuBuildVirtioDevStr(&buf, "virtio-gpu", qemuCaps,
VIR_DOMAIN_DEVICE_VIDEO, video) < 0) {
goto error;
}
} else {
virBufferAsprintf(&buf, "%s", model);
}
virBufferAsprintf(&buf, ",id=%s", video->info.alias);
if (video->accel && video->accel->accel3d == VIR_TRISTATE_SWITCH_ON) {
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->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->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)))) {
virBufferAsprintf(&buf, ",vgamem_mb=%u", video->vram / 1024);
}
if (qemuBuildDeviceAddressStr(&buf, def, &video->info, qemuCaps) < 0)
goto error;
if (qemuBuildVirtioOptionsStr(&buf, video->virtio, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildVgaVideoCommand(virCommandPtr cmd,
virDomainVideoDefPtr video,
virQEMUCapsPtr qemuCaps)
{
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.
*/
const char *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 int
qemuBuildVideoCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->nvideos; i++) {
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);
VIR_FREE(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);
VIR_FREE(str);
}
}
return 0;
}
int
qemuOpenPCIConfig(virDomainHostdevDefPtr dev)
{
virDomainHostdevSubsysPCIPtr pcisrc = &dev->source.subsys.u.pci;
char *path = NULL;
int configfd = -1;
if (virAsprintf(&path, "/sys/bus/pci/devices/%04x:%02x:%02x.%01x/config",
pcisrc->addr.domain, pcisrc->addr.bus,
pcisrc->addr.slot, pcisrc->addr.function) < 0)
return -1;
configfd = open(path, O_RDWR, 0);
if (configfd < 0)
virReportSystemError(errno, _("Failed opening %s"), path);
VIR_FREE(path);
return configfd;
}
char *
qemuBuildPCIHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
unsigned int bootIndex, /* used iff dev->info->bootIndex == 0 */
const char *configfd,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainHostdevSubsysPCIPtr pcisrc = &dev->source.subsys.u.pci;
int backend = pcisrc->backend;
/* caller has to assign proper passthrough backend type */
switch ((virDomainHostdevSubsysPCIBackendType)backend) {
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_KVM:
virBufferAddLit(&buf, "pci-assign");
if (configfd && *configfd)
virBufferAsprintf(&buf, ",configfd=%s", configfd);
break;
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO:
virBufferAddLit(&buf, "vfio-pci");
break;
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));
goto error;
}
virBufferAddLit(&buf, ",host=");
if (pcisrc->addr.domain)
virBufferAsprintf(&buf, "%.4x:", pcisrc->addr.domain);
virBufferAsprintf(&buf, "%.2x:%.2x.%.1x",
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)
goto error;
if (qemuBuildRomStr(&buf, dev->info) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildUSBHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainHostdevSubsysUSBPtr usbsrc = &dev->source.subsys.u.usb;
if (!dev->missing && !usbsrc->bus && !usbsrc->device) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("USB host device is missing bus/device information"));
return NULL;
}
virBufferAddLit(&buf, "usb-host");
if (!dev->missing) {
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)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildHubDevStr(const virDomainDef *def,
virDomainHubDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (dev->type != VIR_DOMAIN_HUB_TYPE_USB) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("hub type %s not supported"),
virDomainHubTypeToString(dev->type));
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_HUB)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("usb-hub not supported by QEMU binary"));
goto error;
}
virBufferAddLit(&buf, "usb-hub");
virBufferAsprintf(&buf, ",id=%s", dev->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
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];
char *optstr;
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildHubDevStr(def, hub, qemuCaps)))
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
}
return 0;
}
static char *
qemuBuildSCSIHostHostdevDrvStr(virDomainHostdevDefPtr dev)
{
virDomainHostdevSubsysSCSIPtr scsisrc = &dev->source.subsys.u.scsi;
virDomainHostdevSubsysSCSIHostPtr scsihostsrc = &scsisrc->u.host;
return virSCSIDeviceGetSgName(NULL,
scsihostsrc->adapter,
scsihostsrc->bus,
scsihostsrc->target,
scsihostsrc->unit);
}
static char *
qemuBuildSCSIiSCSIHostdevDrvStr(virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
char *ret = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
char *netsource = NULL;
virJSONValuePtr 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)))
goto cleanup;
if (!(netsource = virQEMUBuildDriveCommandlineFromJSON(srcprops)))
goto cleanup;
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)))
goto cleanup;
virBufferAddLit(&buf, "file=");
virQEMUBuildBufferEscapeComma(&buf, netsource);
virBufferAddLit(&buf, ",if=none,format=raw");
}
if (virBufferCheckError(&buf) < 0)
goto cleanup;
ret = virBufferContentAndReset(&buf);
cleanup:
VIR_FREE(netsource);
virJSONValueFree(srcprops);
virBufferFreeAndReset(&buf);
return ret;
}
char *
qemuBuildSCSIVHostHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps,
char *vhostfdName)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainHostdevSubsysSCSIVHostPtr hostsrc = &dev->source.subsys.u.scsi_host;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VHOST_SCSI)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support vhost-scsi devices"));
goto cleanup;
}
if (qemuBuildVirtioDevStr(&buf, "vhost-scsi", qemuCaps,
VIR_DOMAIN_DEVICE_HOSTDEV, dev) < 0) {
goto cleanup;
}
virBufferAsprintf(&buf, ",wwpn=%s,vhostfd=%s,id=%s",
hostsrc->wwpn,
vhostfdName,
dev->info->alias);
if (qemuBuildDeviceAddressStr(&buf, def, dev->info, qemuCaps) < 0)
goto cleanup;
if (virBufferCheckError(&buf) < 0)
goto cleanup;
return virBufferContentAndReset(&buf);
cleanup:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildSCSIHostdevDrvStr(virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
char *source = NULL;
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)))
goto error;
virBufferAdd(&buf, source, -1);
} else {
if (!(source = qemuBuildSCSIHostHostdevDrvStr(dev)))
goto error;
virBufferAsprintf(&buf, "file=/dev/%s,if=none,format=raw", source);
}
VIR_FREE(source);
if (!(drivealias = qemuAliasFromHostdev(dev)))
goto error;
virBufferAsprintf(&buf, ",id=%s", drivealias);
VIR_FREE(drivealias);
if (dev->readonly)
virBufferAddLit(&buf, ",readonly=on");
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildSCSIHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
int model = -1;
char *driveAlias;
const char *contAlias;
model = qemuDomainFindSCSIControllerModel(def, dev->info);
if (model < 0)
goto error;
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'"));
goto error;
}
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'"));
goto error;
}
}
virBufferAddLit(&buf, "scsi-generic");
if (!(contAlias = virDomainControllerAliasFind(def, VIR_DOMAIN_CONTROLLER_TYPE_SCSI,
dev->info->addr.drive.controller)))
goto error;
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);
}
if (!(driveAlias = qemuAliasFromHostdev(dev)))
goto error;
virBufferAsprintf(&buf, ",drive=%s,id=%s", driveAlias, dev->info->alias);
VIR_FREE(driveAlias);
if (dev->info->bootIndex)
virBufferAsprintf(&buf, ",bootindex=%u", dev->info->bootIndex);
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
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) {
char *fdset, *fdpath;
int flags = 0;
int logfd;
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;
virCommandPassFD(cmd, logfd, VIR_COMMAND_PASS_FD_CLOSE_PARENT);
if (!(fdset = qemuVirCommandGetFDSet(cmd, logfd)))
return -1;
virCommandAddArg(cmd, "-add-fd");
virCommandAddArg(cmd, fdset);
VIR_FREE(fdset);
if (!(fdpath = qemuVirCommandGetDevSet(cmd, logfd)))
return -1;
virBufferAsprintf(buf, ",%s=%s,%s=on", filearg, fdpath, appendarg);
VIR_FREE(fdpath);
} 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 flags)
{
qemuDomainChrSourcePrivatePtr chrSourcePriv = QEMU_DOMAIN_CHR_SOURCE_PRIVATE(dev);
virBuffer buf = VIR_BUFFER_INITIALIZER;
bool telnet;
char *charAlias = NULL;
char *ret = NULL;
if (!(charAlias = qemuAliasChardevFromDevAlias(alias)))
goto cleanup;
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 (dev->data.file.append != VIR_TRISTATE_SWITCH_ABSENT &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_FILE_APPEND)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("append not supported in this QEMU binary"));
goto cleanup;
}
if (qemuBuildChrChardevFileStr(flags & QEMU_BUILD_CHARDEV_FILE_LOGD ?
logManager : NULL,
cmd, def, &buf,
"path", dev->data.file.path,
"append", dev->data.file.append) < 0)
goto cleanup;
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" : "");
if (dev->data.tcp.listen) {
virBufferAddLit(&buf, ",server");
if (flags & QEMU_BUILD_CHARDEV_TCP_NOWAIT)
virBufferAddLit(&buf, ",nowait");
}
qemuBuildChrChardevReconnectStr(&buf, &dev->data.tcp.reconnect);
if (dev->data.tcp.haveTLS == VIR_TRISTATE_BOOL_YES) {
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) < 0)
goto cleanup;
tlsCertEncSecAlias = chrSourcePriv->secinfo->s.aes.alias;
}
if (!(objalias = qemuAliasTLSObjFromSrcAlias(charAlias)))
goto cleanup;
if (qemuBuildTLSx509CommandLine(cmd, cfg->chardevTLSx509certdir,
dev->data.tcp.listen,
cfg->chardevTLSx509verify,
tlsCertEncSecAlias,
objalias, qemuCaps) < 0) {
VIR_FREE(objalias);
goto cleanup;
}
virBufferAsprintf(&buf, ",tls-creds=%s", objalias);
VIR_FREE(objalias);
}
break;
case VIR_DOMAIN_CHR_TYPE_UNIX:
virBufferAsprintf(&buf, "socket,id=%s", charAlias);
if (dev->data.nix.listen &&
(flags & QEMU_BUILD_CHARDEV_UNIX_FD_PASS) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_FD_PASS)) {
if (qemuSecuritySetSocketLabel(secManager, (virDomainDefPtr)def) < 0)
goto cleanup;
int fd = qemuOpenChrChardevUNIXSocket(dev);
if (qemuSecurityClearSocketLabel(secManager, (virDomainDefPtr)def) < 0) {
VIR_FORCE_CLOSE(fd);
goto cleanup;
}
if (fd < 0)
goto cleanup;
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");
if (flags & QEMU_BUILD_CHARDEV_TCP_NOWAIT)
virBufferAddLit(&buf, ",nowait");
}
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));
goto cleanup;
}
if (dev->logfile) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_LOGFILE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("logfile not supported in this QEMU binary"));
goto cleanup;
}
if (qemuBuildChrChardevFileStr(logManager, cmd, def, &buf,
"logfile", dev->logfile,
"logappend", dev->logappend) < 0)
goto cleanup;
}
if (virBufferCheckError(&buf) < 0)
goto cleanup;
ret = virBufferContentAndReset(&buf);
cleanup:
VIR_FREE(charAlias);
virBufferFreeAndReset(&buf);
return ret;
}
char *
qemuBuildHostdevMediatedDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainHostdevSubsysMediatedDevPtr mdevsrc = &dev->source.subsys.u.mdev;
char *ret = NULL;
char *mdevPath = NULL;
const char *dev_str = NULL;
if (!(mdevPath = virMediatedDeviceGetSysfsPath(mdevsrc->uuidstr)))
goto cleanup;
dev_str = virMediatedDeviceModelTypeToString(mdevsrc->model);
if (!dev_str)
goto cleanup;
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)
goto cleanup;
if (virBufferCheckError(&buf) < 0)
goto cleanup;
ret = virBufferContentAndReset(&buf);
cleanup:
VIR_FREE(mdevPath);
virBufferFreeAndReset(&buf);
return ret;
}
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;
char *devstr;
if (hostdev->info->bootIndex) {
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS ||
(subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI &&
subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB &&
subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("booting from assigned devices is only "
"supported for PCI, USB and SCSI devices"));
return -1;
}
}
/* USB */
if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB) {
virCommandAddArg(cmd, "-device");
if (!(devstr =
qemuBuildUSBHostdevDevStr(def, hostdev, qemuCaps)))
return -1;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
/* PCI */
if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) {
int backend = subsys->u.pci.backend;
if (backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VFIO_PCI)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("VFIO PCI device assignment is not "
"supported by this version of qemu"));
return -1;
}
}
char *configfd_name = NULL;
unsigned int bootIndex = hostdev->info->bootIndex;
/* bootNet will be non-0 if boot order was set and no other
* net devices were encountered
*/
if (hostdev->parent.type == VIR_DOMAIN_DEVICE_NET &&
bootIndex == 0) {
bootIndex = *bootHostdevNet;
*bootHostdevNet = 0;
}
if (backend != VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) {
int configfd = qemuOpenPCIConfig(hostdev);
if (configfd >= 0) {
if (virAsprintf(&configfd_name, "%d", configfd) < 0) {
VIR_FORCE_CLOSE(configfd);
return -1;
}
virCommandPassFD(cmd, configfd,
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
}
}
if (qemuCommandAddExtDevice(cmd, hostdev->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
devstr = qemuBuildPCIHostdevDevStr(def, hostdev, bootIndex,
configfd_name, qemuCaps);
VIR_FREE(configfd_name);
if (!devstr)
return -1;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
/* SCSI */
if (virHostdevIsSCSIDevice(hostdev)) {
virDomainHostdevSubsysSCSIPtr scsisrc =
&hostdev->source.subsys.u.scsi;
char *drvstr;
if (scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI) {
virDomainHostdevSubsysSCSIiSCSIPtr iscsisrc =
&scsisrc->u.iscsi;
qemuDomainStorageSourcePrivatePtr srcPriv =
QEMU_DOMAIN_STORAGE_SOURCE_PRIVATE(iscsisrc->src);
if (qemuBuildDiskSecinfoCommandLine(cmd, srcPriv ?
srcPriv->secinfo :
NULL) < 0)
return -1;
}
virCommandAddArg(cmd, "-drive");
if (!(drvstr = qemuBuildSCSIHostdevDrvStr(hostdev, qemuCaps)))
return -1;
virCommandAddArg(cmd, drvstr);
VIR_FREE(drvstr);
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildSCSIHostdevDevStr(def, hostdev)))
return -1;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
/* SCSI_host */
if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI_HOST) {
if (hostdev->source.subsys.u.scsi_host.protocol ==
VIR_DOMAIN_HOSTDEV_SUBSYS_SCSI_HOST_PROTOCOL_TYPE_VHOST) {
char *vhostfdName = NULL;
int vhostfd = -1;
if (virSCSIVHostOpenVhostSCSI(&vhostfd) < 0)
return -1;
if (virAsprintf(&vhostfdName, "%d", vhostfd) < 0) {
VIR_FORCE_CLOSE(vhostfd);
return -1;
}
virCommandPassFD(cmd, vhostfd,
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildSCSIVHostHostdevDevStr(def,
hostdev,
qemuCaps,
vhostfdName))) {
VIR_FREE(vhostfdName);
VIR_FORCE_CLOSE(vhostfd);
return -1;
}
virCommandAddArg(cmd, devstr);
VIR_FREE(vhostfdName);
VIR_FREE(devstr);
}
}
/* MDEV */
if (virHostdevIsMdevDevice(hostdev)) {
virDomainHostdevSubsysMediatedDevPtr mdevsrc = &subsys->u.mdev;
switch ((virMediatedDeviceModelType) mdevsrc->model) {
case VIR_MDEV_MODEL_TYPE_VFIO_PCI:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VFIO_PCI)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("VFIO PCI device assignment is not "
"supported by this version of QEMU"));
return -1;
}
break;
case VIR_MDEV_MODEL_TYPE_VFIO_CCW:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VFIO_CCW)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("VFIO CCW device assignment is not "
"supported by this version of QEMU"));
return -1;
}
break;
case VIR_MDEV_MODEL_TYPE_VFIO_AP:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VFIO_AP)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("VFIO AP device assignment is not "
"supported by this version of QEMU"));
return -1;
}
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);
VIR_FREE(devstr);
}
}
return 0;
}
static int
qemuBuildMonitorCommandLine(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
qemuDomainObjPrivatePtr priv)
{
char *chrdev;
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);
VIR_FREE(chrdev);
virCommandAddArg(cmd, "-mon");
virCommandAddArgFormat(cmd,
"chardev=charmonitor,id=monitor,mode=%s",
priv->monJSON ? "control" : "readline");
return 0;
}
static char *
qemuBuildVirtioSerialPortDevStr(const virDomainDef *def,
virDomainChrDefPtr dev)
{
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"));
goto error;
}
contAlias = virDomainControllerAliasFind(def, VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL,
dev->info.addr.vioserial.controller);
if (!contAlias)
goto error;
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);
goto error;
}
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");
}
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildSclpDevStr(virDomainChrDefPtr dev)
{
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"));
goto error;
}
virBufferAsprintf(&buf, ",chardev=char%s,id=%s",
dev->info.alias, dev->info.alias);
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
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_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;
}
return 0;
}
int
qemuBuildRNGBackendProps(virDomainRNGDefPtr rng,
virQEMUCapsPtr qemuCaps,
virJSONValuePtr *props)
{
char *objAlias = NULL;
char *charBackendAlias = NULL;
int ret = -1;
if (virAsprintf(&objAlias, "obj%s", rng->info.alias) < 0)
goto cleanup;
switch ((virDomainRNGBackend) rng->backend) {
case VIR_DOMAIN_RNG_BACKEND_RANDOM:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_RNG_RANDOM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this qemu doesn't support the rng-random "
"backend"));
goto cleanup;
}
if (qemuMonitorCreateObjectProps(props, "rng-random", objAlias,
"s:filename", rng->source.file,
NULL) < 0)
goto cleanup;
break;
case VIR_DOMAIN_RNG_BACKEND_EGD:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_RNG_EGD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this qemu doesn't support the rng-egd "
"backend"));
goto cleanup;
}
if (!(charBackendAlias = qemuAliasChardevFromDevAlias(rng->info.alias)))
goto cleanup;
if (qemuMonitorCreateObjectProps(props, "rng-egd", objAlias,
"s:chardev", charBackendAlias,
NULL) < 0)
goto cleanup;
break;
case VIR_DOMAIN_RNG_BACKEND_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("unknown rng-random backend"));
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(objAlias);
VIR_FREE(charBackendAlias);
return ret;
}
char *
qemuBuildRNGDevStr(const virDomainDef *def,
virDomainRNGDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (!qemuDomainCheckCCWS390AddressSupport(def, &dev->info, qemuCaps,
dev->source.file))
goto error;
if (qemuBuildVirtioDevStr(&buf, "virtio-rng", qemuCaps,
VIR_DOMAIN_DEVICE_RNG, dev) < 0) {
goto error;
}
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");
}
if (qemuBuildVirtioOptionsStr(&buf, dev->virtio, qemuCaps) < 0)
goto error;
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
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++) {
virJSONValuePtr props;
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainRNGDefPtr rng = def->rngs[i];
char *tmp;
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, &tmp,
chardevStdioLogd) < 0)
return -1;
if (tmp) {
virCommandAddArgList(cmd, "-chardev", tmp, NULL);
VIR_FREE(tmp);
}
if (qemuBuildRNGBackendProps(rng, qemuCaps, &props) < 0)
return -1;
rc = virQEMUBuildObjectCommandlineFromJSON(&buf, props);
virJSONValueFree(props);
if (rc < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
/* add the device */
if (qemuCommandAddExtDevice(cmd, &rng->info) < 0)
return -1;
if (!(tmp = qemuBuildRNGDevStr(def, rng, qemuCaps)))
return -1;
virCommandAddArgList(cmd, "-device", tmp, NULL);
VIR_FREE(tmp);
}
return 0;
}
static char *
qemuBuildSmbiosBiosStr(virSysinfoBIOSDefPtr def)
{
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)
{
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)
{
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);
}
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildSmbiosOEMStringsStr(virSysinfoOEMStringsDefPtr def)
{
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)
{
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);
}
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
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) {
if (def->sysinfo == NULL) {
virReportError(VIR_ERR_XML_ERROR,
_("Domain '%s' sysinfo are not available"),
def->name);
return -1;
}
source = def->sysinfo;
/* 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
qemuBuildVMGenIDCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virBuffer opts = VIR_BUFFER_INITIALIZER;
char guid[VIR_UUID_STRING_BUFLEN];
if (!def->genidRequested)
return 0;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VMGENID)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU does not support the 'genid' capability"));
return -1;
}
virUUIDFormat(def->genid, guid);
virBufferAsprintf(&opts, "vmgenid,guid=%s,id=vmgenid0", guid);
virCommandAddArg(cmd, "-device");
virCommandAddArgBuffer(cmd, &opts);
virBufferFreeAndReset(&opts);
return 0;
}
static int
qemuBuildSgaCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
/* Serial graphics adapter */
if (def->os.bios.useserial == VIR_TRISTATE_BOOL_YES) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SGA)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("qemu does not support SGA"));
return -1;
}
if (!def->nserials) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("need at least one serial port to use SGA"));
return -1;
}
virCommandAddArgList(cmd, "-device", "sga", NULL);
}
return 0;
}
static char *
qemuBuildClockArgStr(virDomainClockDefPtr def)
{
size_t i;
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: {
time_t now = time(NULL);
struct tm nowbits;
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)
goto error;
def->data.variable.adjustment += localOffset;
def->data.variable.basis = VIR_DOMAIN_CLOCK_BASIS_UTC;
}
now += def->data.variable.adjustment;
gmtime_r(&now, &nowbits);
/* 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=%d-%02d-%02dT%02d:%02d:%02d",
nowbits.tm_year + 1900,
nowbits.tm_mon + 1,
nowbits.tm_mday,
nowbits.tm_hour,
nowbits.tm_min,
nowbits.tm_sec);
} break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported clock offset '%s'"),
virDomainClockOffsetTypeToString(def->offset));
goto error;
}
/* 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:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported rtc timer track '%s'"),
virDomainTimerTrackTypeToString(def->timers[i]->track));
goto error;
case VIR_DOMAIN_TIMER_TRACK_GUEST:
virBufferAddLit(&buf, ",clock=vm");
break;
case VIR_DOMAIN_TIMER_TRACK_WALL:
virBufferAddLit(&buf, ",clock=host");
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:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported rtc timer tickpolicy '%s'"),
virDomainTimerTickpolicyTypeToString(def->timers[i]->tickpolicy));
goto error;
}
break; /* no need to check other timers - there is only one rtc */
}
}
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
/* 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;
char *rtcopt;
virCommandAddArg(cmd, "-rtc");
if (!(rtcopt = qemuBuildClockArgStr(&def->clock)))
return -1;
virCommandAddArg(cmd, rtcopt);
VIR_FREE(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:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported timer type (name) '%s'"),
virDomainTimerNameTypeToString(def->clock.timers[i]->name));
return -1;
case VIR_DOMAIN_TIMER_NAME_TSC:
case VIR_DOMAIN_TIMER_NAME_KVMCLOCK:
case VIR_DOMAIN_TIMER_NAME_HYPERVCLOCK:
/* Timers above are handled when building -cpu. */
case VIR_DOMAIN_TIMER_NAME_LAST:
break;
case VIR_DOMAIN_TIMER_NAME_RTC:
/* Already handled in qemuBuildClockArgStr */
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:
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM_PIT_TICK_POLICY)) {
/* do nothing - this is default for kvm-pit */
} else {
/* can't catchup if we don't have kvm-pit */
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported pit tickpolicy '%s'"),
virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
return -1;
}
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 */
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported pit tickpolicy '%s'"),
virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
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");
} else {
/* no hpet timer available. The only possible action
is to raise an error if present="yes" */
if (def->clock.timers[i]->present == 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("hpet timer is not supported"));
return -1;
}
}
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";
} else if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX_DISABLE_S3)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("setting ACPI S3 not supported"));
return -1;
}
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";
} else if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX_DISABLE_S4)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("setting ACPI S4 not supported"));
return -1;
}
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)
{
virBuffer boot_buf = VIR_BUFFER_INITIALIZER;
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) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_REBOOT_TIMEOUT)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("reboot timeout is not supported "
"by this QEMU binary"));
goto error;
}
virBufferAsprintf(&boot_buf,
"reboot-timeout=%d,",
def->os.bios.rt_delay);
}
if (def->os.bm_timeout_set) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPLASH_TIMEOUT)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("splash timeout is not supported "
"by this QEMU binary"));
goto error;
}
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, ",", -1);
if (virBufferCheckError(&boot_buf) < 0)
goto error;
boot_opts_str = virBufferContentAndReset(&boot_buf);
if (boot_opts_str) {
virCommandAddArg(cmd, "-boot");
virCommandAddArg(cmd, boot_opts_str);
}
VIR_FREE(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) {
virBuffer buf = VIR_BUFFER_INITIALIZER;
virCommandAddArg(cmd, "-acpitable");
virBufferAddLit(&buf, "sig=SLIC,file=");
virQEMUBuildBufferEscapeComma(&buf, def->os.slic_table);
virCommandAddArgBuffer(cmd, &buf);
}
return 0;
error:
VIR_FREE(boot_opts_str);
virBufferFreeAndReset(&boot_buf);
return -1;
}
static int
qemuBuildIOMMUCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virBuffer opts = VIR_BUFFER_INITIALIZER;
const virDomainIOMMUDef *iommu = def->iommu;
int ret = -1;
if (!iommu)
return 0;
switch (iommu->model) {
case VIR_DOMAIN_IOMMU_MODEL_INTEL:
if (iommu->intremap != VIR_TRISTATE_SWITCH_ABSENT &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_INTEL_IOMMU_INTREMAP)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("iommu: interrupt remapping is not supported "
"with this QEMU binary"));
return -1;
}
if (iommu->caching_mode != VIR_TRISTATE_SWITCH_ABSENT &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_INTEL_IOMMU_CACHING_MODE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("iommu: caching mode is not supported "
"with this QEMU binary"));
return -1;
}
if (iommu->eim != VIR_TRISTATE_SWITCH_ABSENT &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_INTEL_IOMMU_EIM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("iommu: eim is not supported "
"with this QEMU binary"));
return -1;
}
if (iommu->iotlb != VIR_TRISTATE_SWITCH_ABSENT &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_INTEL_IOMMU_DEVICE_IOTLB)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("iommu: device IOTLB is not supported "
"with this QEMU binary"));
return -1;
}
break;
case VIR_DOMAIN_IOMMU_MODEL_LAST:
break;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_IOMMU))
return 0; /* Already handled via -machine */
switch (iommu->model) {
case VIR_DOMAIN_IOMMU_MODEL_INTEL:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_INTEL_IOMMU)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("IOMMU device: '%s' is not supported with "
"this QEMU binary"),
virDomainIOMMUModelTypeToString(iommu->model));
return -1;
}
if (!qemuDomainIsQ35(def)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("IOMMU device: '%s' is only supported with "
"Q35 machines"),
virDomainIOMMUModelTypeToString(iommu->model));
return -1;
}
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));
}
case VIR_DOMAIN_IOMMU_MODEL_LAST:
break;
}
virCommandAddArg(cmd, "-device");
virCommandAddArgBuffer(cmd, &opts);
ret = 0;
virBufferFreeAndReset(&opts);
return ret;
}
static int
qemuBuildGlobalControllerCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
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;
bool cap = false;
bool machine = false;
switch (cont->model) {
case VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT:
hoststr = "i440FX-pcihost";
cap = virQEMUCapsGet(qemuCaps, QEMU_CAPS_I440FX_PCI_HOLE64_SIZE);
machine = qemuDomainIsI440FX(def);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT:
hoststr = "q35-pcihost";
cap = virQEMUCapsGet(qemuCaps, QEMU_CAPS_Q35_PCI_HOLE64_SIZE);
machine = qemuDomainIsQ35(def);
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("64-bit PCI hole setting is only for root"
" PCI controllers"));
return -1;
}
if (!machine) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Setting the 64-bit PCI hole size is not "
"supported for machine '%s'"), def->os.machine);
return -1;
}
if (!cap) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("64-bit PCI hole size setting is not supported "
"with this QEMU binary"));
return -1;
}
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.pci-hole64-size=%luK", hoststr,
cont->opts.pciopts.pcihole64size);
}
}
return 0;
}
static int
qemuBuildCpuModelArgStr(virQEMUDriverPtr driver,
const virDomainDef *def,
virBufferPtr buf,
virQEMUCapsPtr qemuCaps)
{
int ret = -1;
size_t i;
virCapsPtr caps = NULL;
virCPUDefPtr cpu = def->cpu;
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
goto cleanup;
switch ((virCPUMode) cpu->mode) {
case VIR_CPU_MODE_HOST_PASSTHROUGH:
virBufferAddLit(buf, "host");
if (def->os.arch == VIR_ARCH_ARMV7L &&
caps->host.arch == VIR_ARCH_AARCH64) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CPU_AARCH64_OFF)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("QEMU binary does not support CPU "
"host-passthrough for armv7l on "
"aarch64 host"));
goto cleanup;
}
virBufferAddLit(buf, ",aarch64=off");
}
break;
case VIR_CPU_MODE_HOST_MODEL:
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));
goto cleanup;
}
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) && 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));
goto cleanup;
}
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:
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION))
virBufferAsprintf(buf, ",%s=on", cpu->features[i].name);
else
virBufferAsprintf(buf, ",+%s", cpu->features[i].name);
break;
case VIR_CPU_FEATURE_DISABLE:
case VIR_CPU_FEATURE_FORBID:
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION))
virBufferAsprintf(buf, ",%s=off", cpu->features[i].name);
else
virBufferAsprintf(buf, ",-%s", cpu->features[i].name);
break;
case VIR_CPU_FEATURE_OPTIONAL:
case VIR_CPU_FEATURE_LAST:
break;
}
}
ret = 0;
cleanup:
virObjectUnref(caps);
return ret;
}
static int
qemuBuildCpuCommandLine(virCommandPtr cmd,
virQEMUDriverPtr driver,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virArch hostarch = virArchFromHost();
char *cpu = NULL, *cpu_flags = NULL;
int ret = -1;
virBuffer cpu_buf = VIR_BUFFER_INITIALIZER;
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)
goto cleanup;
} 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];
if (timer->name == VIR_DOMAIN_TIMER_NAME_KVMCLOCK &&
timer->present != -1) {
virBufferAsprintf(&buf, ",%ckvmclock",
timer->present ? '+' : '-');
} else if (timer->name == VIR_DOMAIN_TIMER_NAME_HYPERVCLOCK &&
timer->present == 1) {
virBufferAddLit(&buf, ",hv_time");
} else if (timer->name == VIR_DOMAIN_TIMER_NAME_TSC &&
timer->frequency > 0) {
virBufferAsprintf(&buf, ",tsc-frequency=%lu", timer->frequency);
}
}
if (def->apic_eoi) {
char sign;
if (def->apic_eoi == VIR_TRISTATE_SWITCH_ON)
sign = '+';
else
sign = '-';
virBufferAsprintf(&buf, ",%ckvm_pv_eoi", sign);
}
if (def->features[VIR_DOMAIN_FEATURE_PVSPINLOCK]) {
char sign;
if (def->features[VIR_DOMAIN_FEATURE_PVSPINLOCK] ==
VIR_TRISTATE_SWITCH_ON)
sign = '+';
else
sign = '-';
virBufferAsprintf(&buf, ",%ckvm_pv_unhalt", sign);
}
if (def->features[VIR_DOMAIN_FEATURE_HYPERV] == VIR_TRISTATE_SWITCH_ON) {
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, ",hv_%s",
virDomainHypervTypeToString(i));
break;
case VIR_DOMAIN_HYPERV_SPINLOCKS:
if (def->hyperv_features[i] == VIR_TRISTATE_SWITCH_ON)
virBufferAsprintf(&buf, ",hv_spinlocks=0x%x",
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;
/* coverity[dead_error_begin] */
case VIR_DOMAIN_KVM_LAST:
break;
}
}
}
if (def->features[VIR_DOMAIN_FEATURE_PMU]) {
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 &&
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");
}
if (virBufferCheckError(&cpu_buf) < 0)
goto cleanup;
if (virBufferCheckError(&buf) < 0)
goto cleanup;
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));
goto cleanup;
}
if (VIR_STRDUP(cpu, default_model) < 0)
goto cleanup;
}
if (cpu) {
virCommandAddArg(cmd, "-cpu");
virCommandAddArgFormat(cmd, "%s%s", cpu, NULLSTR_EMPTY(cpu_flags));
}
ret = 0;
cleanup:
VIR_FREE(cpu);
VIR_FREE(cpu_flags);
virBufferFreeAndReset(&buf);
virBufferFreeAndReset(&cpu_buf);
return ret;
}
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)
{
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)
{
virTristateSwitch vmport = def->features[VIR_DOMAIN_FEATURE_VMPORT];
virTristateSwitch smm = def->features[VIR_DOMAIN_FEATURE_SMM];
virCPUDefPtr cpu = def->cpu;
virBuffer buf = VIR_BUFFER_INITIALIZER;
size_t i;
int ret = -1;
/* This should *never* be NULL, since we always provide
* a machine in the capabilities data for QEMU. So this
* check is just here as a safety in case the unexpected
* happens */
if (!def->os.machine)
return 0;
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) {
if (!virQEMUCapsSupportsVmport(qemuCaps, def)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("vmport is not available "
"with this QEMU binary"));
goto cleanup;
}
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) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MEM_MERGE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("disable shared memory is not available "
"with this QEMU binary"));
goto cleanup;
}
virBufferAddLit(&buf, ",mem-merge=off");
}
if (def->keywrap &&
!qemuAppendKeyWrapMachineParms(&buf, qemuCaps, def->keywrap))
goto cleanup;
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;
}
ATTRIBUTE_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"));
goto cleanup;
}
virBufferAsprintf(&buf, ",gic-version=%s",
virGICVersionTypeToString(def->gic_version));
break;
case VIR_GIC_VERSION_NONE:
case VIR_GIC_VERSION_LAST:
default:
break;
}
}
/* We don't report errors on missing cap here - -device code will do that */
if (def->iommu &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_IOMMU)) {
switch (def->iommu->model) {
case VIR_DOMAIN_IOMMU_MODEL_INTEL:
if (!qemuDomainIsQ35(def)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("IOMMU device: '%s' is only supported with "
"Q35 machines"),
virDomainIOMMUModelTypeToString(def->iommu->model));
return -1;
}
virBufferAddLit(&buf, ",iommu=on");
break;
case VIR_DOMAIN_IOMMU_MODEL_LAST:
break;
}
}
for (i = 0; i < def->nmems; i++) {
if (def->mems[i]->model == VIR_DOMAIN_MEMORY_MODEL_NVDIMM) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_NVDIMM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("nvdimm isn't supported by this QEMU binary"));
goto cleanup;
}
virBufferAddLit(&buf, ",nvdimm=on");
break;
}
}
if (def->features[VIR_DOMAIN_FEATURE_IOAPIC] != VIR_DOMAIN_IOAPIC_NONE) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_KERNEL_IRQCHIP)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("I/O APIC tuning is not supported by this "
"QEMU binary"));
goto cleanup;
}
switch ((virDomainIOAPIC) def->features[VIR_DOMAIN_FEATURE_IOAPIC]) {
case VIR_DOMAIN_IOAPIC_QEMU:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_KERNEL_IRQCHIP_SPLIT)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("split I/O APIC is not supported by this "
"QEMU binary"));
goto cleanup;
}
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) {
const char *str;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("HTP resizing is not supported by this "
"QEMU binary"));
goto cleanup;
}
str = virDomainHPTResizingTypeToString(def->hpt_resizing);
if (!str) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Invalid setting for HPT resizing"));
goto cleanup;
}
virBufferAsprintf(&buf, ",resize-hpt=%s", str);
}
if (def->hpt_maxpagesize > 0) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_CAP_HPT_MAX_PAGE_SIZE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Configuring the page size for HPT guests "
"is not supported by this QEMU binary"));
goto cleanup;
}
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;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_CAP_HTM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("HTM configuration is not supported by this "
"QEMU binary"));
goto cleanup;
}
str = virTristateSwitchTypeToString(def->features[VIR_DOMAIN_FEATURE_HTM]);
if (!str) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Invalid setting for HTM state"));
goto cleanup;
}
virBufferAsprintf(&buf, ",cap-htm=%s", str);
}
if (def->features[VIR_DOMAIN_FEATURE_NESTED_HV] != VIR_TRISTATE_SWITCH_ABSENT) {
const char *str;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_CAP_NESTED_HV)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Nested HV configuration is not supported by "
"this QEMU binary"));
goto cleanup;
}
str = virTristateSwitchTypeToString(def->features[VIR_DOMAIN_FEATURE_NESTED_HV]);
if (!str) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Invalid setting for nested HV state"));
goto cleanup;
}
virBufferAsprintf(&buf, ",cap-nested-hv=%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");
virCommandAddArgBuffer(cmd, &buf);
ret = 0;
cleanup:
virBufferFreeAndReset(&buf);
return ret;
}
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)
{
char *smp;
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) {
virBufferAsprintf(&buf, ",sockets=%u", def->cpu->sockets);
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);
}
if (virBufferCheckError(&buf) < 0)
return -1;
smp = virBufferContentAndReset(&buf);
virCommandAddArg(cmd, smp);
VIR_FREE(smp);
return 0;
}
static int
qemuBuildMemPathStr(virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virCommandPtr cmd,
qemuDomainObjPrivatePtr priv)
{
const long system_page_size = virGetSystemPageSizeKB();
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) {
if (qemuGetDomainHupageMemPath(def, cfg,
def->mem.hugepages[0].size,
&mem_path) < 0)
return -1;
} else if (def->mem.source == VIR_DOMAIN_MEMORY_SOURCE_FILE) {
if (qemuGetMemoryBackingPath(def, cfg, "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);
VIR_FREE(mem_path);
return 0;
}
static int
qemuBuildMemCommandLine(virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
qemuDomainObjPrivatePtr priv)
{
if (qemuDomainDefValidateMemoryHotplug(def, qemuCaps, NULL) < 0)
return -1;
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);
}
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(cfg, def, cmd, priv) < 0)
return -1;
if (def->mem.locked && !virQEMUCapsGet(qemuCaps, QEMU_CAPS_REALTIME_MLOCK)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("memory locking not supported by QEMU binary"));
return -1;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_REALTIME_MLOCK)) {
virCommandAddArg(cmd, "-realtime");
virCommandAddArgFormat(cmd, "mlock=%s",
def->mem.locked ? "on" : "off");
}
return 0;
}
static int
qemuBuildIOThreadCommandLine(virCommandPtr cmd,
const virDomainDef *def)
{
size_t i;
if (def->niothreadids == 0)
return 0;
/* Create iothread objects using the defined iothreadids list
* and the defined id and name from the list. These may be used
* by a disk definition which will associate to an iothread by
* supplying a value of an id from the list
*/
for (i = 0; i < def->niothreadids; i++) {
virCommandAddArg(cmd, "-object");
virCommandAddArgFormat(cmd, "iothread,id=iothread%u",
def->iothreadids[i]->iothread_id);
}
return 0;
}
static int
qemuBuildNumaArgStr(virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
virCommandPtr cmd,
qemuDomainObjPrivatePtr priv)
{
size_t i, j;
virQEMUCapsPtr qemuCaps = priv->qemuCaps;
virBuffer buf = VIR_BUFFER_INITIALIZER;
char *cpumask = NULL, *tmpmask = NULL, *next = NULL;
virBufferPtr nodeBackends = NULL;
bool needBackend = false;
int rc;
int ret = -1;
size_t ncells = virDomainNumaGetNodeCount(def->numa);
const long system_page_size = virGetSystemPageSizeKB();
bool numa_distances = false;
if (virDomainNumatuneHasPerNodeBinding(def->numa) &&
!(virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_RAM) ||
virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_FILE) ||
virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_MEMFD))) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Per-node memory binding is not supported "
"with this QEMU"));
goto cleanup;
}
if (def->mem.nhugepages &&
def->mem.hugepages[0].size != system_page_size &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_FILE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("huge pages per NUMA node are not "
"supported with this QEMU"));
goto cleanup;
}
if (!virDomainNumatuneNodesetIsAvailable(def->numa, priv->autoNodeset))
goto cleanup;
if (VIR_ALLOC_N(nodeBackends, ncells) < 0)
goto cleanup;
/* using of -numa memdev= cannot be combined with -numa mem=, thus we
* need to check which approach to use */
for (i = 0; i < ncells; i++) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_RAM) ||
virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_FILE) ||
virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_MEMFD)) {
if ((rc = qemuBuildMemoryCellBackendStr(def, cfg, i, priv,
&nodeBackends[i])) < 0)
goto cleanup;
if (rc == 0)
needBackend = true;
} else {
if (virDomainNumaGetNodeMemoryAccessMode(def->numa, i)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Shared memory mapping is not supported "
"with this QEMU"));
goto cleanup;
}
}
}
if (!needBackend &&
qemuBuildMemPathStr(cfg, def, cmd, priv) < 0)
goto cleanup;
for (i = 0; i < ncells; i++) {
VIR_FREE(cpumask);
if (!(cpumask = virBitmapFormat(virDomainNumaGetNodeCpumask(def->numa, i))))
goto cleanup;
if (strchr(cpumask, ',') &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_NUMA)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("disjoint NUMA cpu ranges are not supported "
"with this QEMU"));
goto cleanup;
}
if (needBackend) {
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &nodeBackends[i]);
}
virCommandAddArg(cmd, "-numa");
virBufferAsprintf(&buf, "node,nodeid=%zu", i);
for (tmpmask = cpumask; tmpmask; tmpmask = next) {
if ((next = strchr(tmpmask, ',')))
*(next++) = '\0';
virBufferAddLit(&buf, ",cpus=");
virBufferAdd(&buf, tmpmask, -1);
}
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. */
for (i = 0; i < ncells; i++) {
for (j = 0; j < ncells; j++) {
if (virDomainNumaNodeDistanceIsUsingDefaults(def->numa, i, j))
continue;
numa_distances = true;
break;
}
if (numa_distances)
break;
}
if (numa_distances) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_NUMA_DIST)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("setting NUMA distances is not "
"supported with this qemu"));
goto cleanup;
}
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);
}
}
}
ret = 0;
cleanup:
VIR_FREE(cpumask);
if (nodeBackends) {
for (i = 0; i < ncells; i++)
virBufferFreeAndReset(&nodeBackends[i]);
VIR_FREE(nodeBackends);
}
virBufferFreeAndReset(&buf);
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++) {
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->mems[i], priv)))
return -1;
virCommandAddArgList(cmd, "-device", dimmStr, NULL);
VIR_FREE(dimmStr);
}
return 0;
}
static int
qemuBuildGraphicsSDLCommandLine(virQEMUDriverConfigPtr cfg ATTRIBUTE_UNUSED,
virCommandPtr cmd,
virQEMUCapsPtr qemuCaps ATTRIBUTE_UNUSED,
virDomainGraphicsDefPtr graphics)
{
int ret = -1;
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");
/* If using SDL for video, then we should just let it
* use QEMU's host audio drivers, possibly SDL too
* User can set these two before starting libvirtd
*/
virCommandAddEnvPassBlockSUID(cmd, "QEMU_AUDIO_DRV", NULL);
virCommandAddEnvPassBlockSUID(cmd, "SDL_AUDIODRIVER", NULL);
virCommandAddArg(cmd, "-display");
virBufferAddLit(&opt, "sdl");
if (graphics->data.sdl.gl != VIR_TRISTATE_BOOL_ABSENT) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SDL_GL)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("OpenGL for SDL is not supported with this QEMU "
"binary"));
goto cleanup;
}
virBufferAsprintf(&opt, ",gl=%s",
virTristateSwitchTypeToString(graphics->data.sdl.gl));
}
if (virBufferCheckError(&opt) < 0)
goto cleanup;
virCommandAddArgBuffer(cmd, &opt);
ret = 0;
cleanup:
virBufferFreeAndReset(&opt);
return ret;
}
static int
qemuBuildGraphicsVNCCommandLine(virQEMUDriverConfigPtr cfg,
virCommandPtr cmd,
virQEMUCapsPtr qemuCaps,
virDomainGraphicsDefPtr graphics)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
virDomainGraphicsListenDefPtr glisten = NULL;
bool escapeAddr;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("vnc graphics are not supported with this QEMU"));
goto error;
}
if (!(glisten = virDomainGraphicsGetListen(graphics, 0))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing listen element"));
goto error;
}
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]"));
goto error;
}
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)
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) < 0)
goto error;
secretAlias = gfxPriv->secinfo->s.aes.alias;
}
if (qemuBuildTLSx509CommandLine(cmd,
cfg->vncTLSx509certdir,
true,
cfg->vncTLSx509verify,
secretAlias,
gfxPriv->tlsAlias,
qemuCaps) < 0)
goto error;
virBufferAsprintf(&opt, ",tls-creds=%s", gfxPriv->tlsAlias);
} 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) {
virBufferAddLit(&opt, ",sasl");
if (cfg->vncSASLdir)
virCommandAddEnvPair(cmd, "SASL_CONF_PATH", cfg->vncSASLdir);
/* TODO: Support ACLs later */
}
virCommandAddArg(cmd, "-vnc");
virCommandAddArgBuffer(cmd, &opt);
if (graphics->data.vnc.keymap)
virCommandAddArgList(cmd, "-k", graphics->data.vnc.keymap, NULL);
/* Unless user requested it, set the audio backend to none, to
* prevent it opening the host OS audio devices, since that causes
* security issues and might not work when using VNC.
*/
if (cfg->vncAllowHostAudio)
virCommandAddEnvPassBlockSUID(cmd, "QEMU_AUDIO_DRV", NULL);
else
virCommandAddEnvString(cmd, "QEMU_AUDIO_DRV=none");
return 0;
error:
virBufferFreeAndReset(&opt);
return -1;
}
static int
qemuBuildGraphicsSPICECommandLine(virQEMUDriverConfigPtr cfg,
virCommandPtr cmd,
virQEMUCapsPtr qemuCaps,
virDomainGraphicsDefPtr graphics)
{
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 (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice graphics are not supported with this QEMU"));
goto error;
}
if (!(glisten = virDomainGraphicsGetListen(graphics, 0))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing listen element"));
goto error;
}
switch (glisten->type) {
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE_UNIX)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("unix socket for spice graphics are not supported "
"with this QEMU"));
goto error;
}
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) {
if (!cfg->spiceTLS) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice TLS port set in XML configuration, "
"but TLS is disabled in qemu.conf"));
goto error;
}
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,");
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);
goto error;
}
}
/* 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,");
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"));
goto error;
}
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"));
goto error;
}
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"));
goto error;
}
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"));
goto error;
}
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,");
if (graphics->data.spice.filetransfer == VIR_TRISTATE_BOOL_NO) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE_FILE_XFER_DISABLE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU can't disable file transfers through spice"));
goto error;
} else {
virBufferAddLit(&opt, "disable-agent-file-xfer,");
}
}
if (graphics->data.spice.gl == VIR_TRISTATE_BOOL_YES) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE_GL)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support spice OpenGL"));
goto error;
}
/* 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) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE_RENDERNODE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support spice OpenGL rendernode"));
goto error;
}
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, ",", -1);
virCommandAddArg(cmd, "-spice");
virCommandAddArgBuffer(cmd, &opt);
if (graphics->data.spice.keymap)
virCommandAddArgList(cmd, "-k",
graphics->data.spice.keymap, NULL);
/* SPICE includes native support for tunnelling audio, so we
* set the audio backend to point at SPICE's own driver
*/
virCommandAddEnvString(cmd, "QEMU_AUDIO_DRV=spice");
return 0;
error:
virBufferFreeAndReset(&opt);
return -1;
}
static int
qemuBuildGraphicsEGLHeadlessCommandLine(virQEMUDriverConfigPtr cfg ATTRIBUTE_UNUSED,
virCommandPtr cmd,
virQEMUCapsPtr qemuCaps,
virDomainGraphicsDefPtr graphics)
{
int ret = -1;
virBuffer opt = VIR_BUFFER_INITIALIZER;
virBufferAddLit(&opt, "egl-headless");
if (graphics->data.egl_headless.rendernode) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_EGL_HEADLESS_RENDERNODE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support OpenGL rendernode "
"with egl-headless graphics type"));
goto cleanup;
}
virBufferAddLit(&opt, ",rendernode=");
virQEMUBuildBufferEscapeComma(&opt,
graphics->data.egl_headless.rendernode);
}
if (virBufferCheckError(&opt) < 0)
goto cleanup;
virCommandAddArg(cmd, "-display");
virCommandAddArgBuffer(cmd, &opt);
ret = 0;
cleanup:
virBufferFreeAndReset(&opt);
return ret;
}
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, cmd,
qemuCaps, graphics) < 0)
return -1;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_SPICE:
if (qemuBuildGraphicsSPICECommandLine(cfg, cmd,
qemuCaps, graphics) < 0)
return -1;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS:
if (qemuBuildGraphicsEGLHeadlessCommandLine(cfg, cmd,
qemuCaps, graphics) < 0)
return -1;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_RDP:
case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported graphics type '%s'"),
virDomainGraphicsTypeToString(graphics->type));
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)
{
virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
int ret = -1;
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)))
goto cleanup;
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));
goto cleanup;
}
ret = 0;
cleanup:
virObjectUnref(cfg);
return ret;
}
static int
qemuBuildInterfaceCommandLine(virQEMUDriverPtr driver,
virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virDomainDefPtr def,
virDomainNetDefPtr net,
virQEMUCapsPtr qemuCaps,
unsigned int bootindex,
virNetDevVPortProfileOp vmop,
bool standalone,
size_t *nnicindexes,
int **nicindexes)
{
int ret = -1;
char *nic = NULL;
char *host = NULL;
char *chardev = NULL;
int *tapfd = NULL;
size_t tapfdSize = 0;
int *vhostfd = NULL;
size_t vhostfdSize = 0;
char **tapfdName = NULL;
char **vhostfdName = NULL;
virDomainNetType actualType = virDomainNetGetActualType(net);
virNetDevBandwidthPtr actualBandwidth;
bool requireNicdev = false;
size_t i;
if (!bootindex)
bootindex = net->info.bootIndex;
/* Currently nothing besides TAP devices supports multiqueue. */
if (net->driver.virtio.queues > 0 &&
!(actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
actualType == VIR_DOMAIN_NET_TYPE_DIRECT ||
actualType == VIR_DOMAIN_NET_TYPE_ETHERNET ||
actualType == VIR_DOMAIN_NET_TYPE_VHOSTUSER)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Multiqueue network is not supported for: %s"),
virDomainNetTypeToString(actualType));
return -1;
}
/* and only TAP devices support nwfilter rules */
if (net->filter) {
virNetDevVPortProfilePtr vport = virDomainNetGetActualVirtPortProfile(net);
if (!(actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
actualType == VIR_DOMAIN_NET_TYPE_ETHERNET)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("filterref is not supported for "
"network interfaces of type %s"),
virDomainNetTypeToString(actualType));
return -1;
}
if (vport && vport->virtPortType != VIR_NETDEV_VPORT_PROFILE_NONE) {
/* currently none of the defined virtualport types support iptables */
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("filterref is not supported for "
"network interfaces with virtualport type %s"),
virNetDevVPortTypeToString(vport->virtPortType));
return -1;
}
}
if (net->backend.tap &&
!(actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
actualType == VIR_DOMAIN_NET_TYPE_ETHERNET)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Custom tap device path is not supported for: %s"),
virDomainNetTypeToString(actualType));
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;
if (VIR_ALLOC_N(tapfd, tapfdSize) < 0 ||
VIR_ALLOC_N(tapfdName, tapfdSize) < 0)
goto cleanup;
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;
if (VIR_ALLOC_N(tapfd, tapfdSize) < 0 ||
VIR_ALLOC_N(tapfdName, tapfdSize) < 0)
goto cleanup;
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;
if (VIR_ALLOC_N(tapfd, tapfdSize) < 0 ||
VIR_ALLOC_N(tapfdName, tapfdSize) < 0)
goto cleanup;
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 (net->driver.virtio.queues > 1 &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VHOSTUSER_MULTIQUEUE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("multi-queue is not supported for vhost-user "
"with this QEMU binary"));
goto cleanup;
}
if (qemuInterfaceVhostuserConnect(driver, logManager, secManager,
cmd, def, net, qemuCaps, &chardev) < 0)
goto cleanup;
if (virNetDevOpenvswitchGetVhostuserIfname(net->data.vhostuser->data.nix.path,
&net->ifname) < 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 (virQEMUDriverIsPrivileged(driver) && 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_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;
}
/* Set bandwidth or warn if requested and not supported. */
actualBandwidth = virDomainNetGetActualBandwidth(net);
if (actualBandwidth) {
if (virNetDevSupportBandwidth(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 &&
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;
if (VIR_ALLOC_N(vhostfd, vhostfdSize) < 0 ||
VIR_ALLOC_N(vhostfdName, vhostfdSize))
goto cleanup;
memset(vhostfd, -1, vhostfdSize * sizeof(vhostfd[0]));
if (qemuInterfaceOpenVhostNet(def, net, vhostfd, &vhostfdSize) < 0)
goto cleanup;
}
for (i = 0; i < tapfdSize; i++) {
if (qemuSecuritySetTapFDLabel(driver->securityManager,
def, tapfd[i]) < 0)
goto cleanup;
virCommandPassFD(cmd, tapfd[i],
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
if (virAsprintf(&tapfdName[i], "%d", tapfd[i]) < 0)
goto cleanup;
}
for (i = 0; i < vhostfdSize; i++) {
virCommandPassFD(cmd, vhostfd[i],
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
if (virAsprintf(&vhostfdName[i], "%d", vhostfd[i]) < 0)
goto cleanup;
}
if (chardev)
virCommandAddArgList(cmd, "-chardev", chardev, NULL);
if (!(host = qemuBuildHostNetStr(net, driver,
tapfdName, tapfdSize,
vhostfdName, vhostfdSize)))
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 = virSaveLastError();
virDomainConfNWFilterTeardown(net);
virSetError(saved_err);
virFreeError(saved_err);
}
for (i = 0; vhostfd && i < vhostfdSize && vhostfd[i] >= 0; i++) {
if (ret < 0)
VIR_FORCE_CLOSE(vhostfd[i]);
if (vhostfdName)
VIR_FREE(vhostfdName[i]);
}
VIR_FREE(vhostfdName);
for (i = 0; tapfd && i < tapfdSize && tapfd[i] >= 0; 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_FREE(chardev);
VIR_FREE(host);
VIR_FREE(nic);
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,
virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps,
virNetDevVPortProfileOp vmop,
bool standalone,
size_t *nnicindexes,
int **nicindexes,
unsigned int *bootHostdevNet)
{
size_t i;
int last_good_net = -1;
virErrorPtr originalError = NULL;
if (def->nnets) {
unsigned int bootNet = 0;
/* convert <boot dev='network'/> 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, logManager, secManager, cmd, def, net,
qemuCaps, bootNet, vmop,
standalone, nnicindexes,
nicindexes) < 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 */
originalError = virSaveLastError();
for (i = 0; last_good_net != -1 && i <= last_good_net; i++)
virDomainConfNWFilterTeardown(def->nets[i]);
virSetError(originalError);
virFreeError(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;
char *devstr;
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"));
virBufferFreeAndReset(&opt);
return -1;
}
switch (smartcard->type) {
case VIR_DOMAIN_SMARTCARD_TYPE_HOST:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CCID_EMULATED)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks smartcard host "
"mode support"));
return -1;
}
virBufferAddLit(&opt, "ccid-card-emulated,backend=nss-emulated");
break;
case VIR_DOMAIN_SMARTCARD_TYPE_HOST_CERTIFICATES:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CCID_EMULATED)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks smartcard host "
"mode support"));
return -1;
}
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 (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CCID_PASSTHRU)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks smartcard "
"passthrough mode support"));
return -1;
}
if (!(devstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
smartcard->data.passthru,
smartcard->info.alias,
qemuCaps, cdevflags))) {
virBufferFreeAndReset(&opt);
return -1;
}
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
virBufferAsprintf(&opt, "ccid-card-passthru,chardev=char%s",
smartcard->info.alias);
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected smartcard type %d"),
smartcard->type);
virBufferFreeAndReset(&opt);
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)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_IVSHMEM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("ivshmem device is not supported "
"with this QEMU binary"));
return NULL;
}
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)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildShmemDevStr(virDomainDefPtr def,
virDomainShmemDefPtr shmem,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if ((shmem->model == VIR_DOMAIN_SHMEM_MODEL_IVSHMEM_PLAIN &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_IVSHMEM_PLAIN)) ||
(shmem->model == VIR_DOMAIN_SHMEM_MODEL_IVSHMEM_DOORBELL &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_IVSHMEM_DOORBELL))) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("shmem model '%s' is not supported "
"by this QEMU binary"),
virDomainShmemModelTypeToString(shmem->model));
return NULL;
}
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);
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) {
virBufferFreeAndReset(&buf);
return NULL;
}
if (virBufferCheckError(&buf) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
virJSONValuePtr
qemuBuildShmemBackendMemProps(virDomainShmemDefPtr shmem)
{
char *mem_alias = NULL;
char *mem_path = NULL;
virJSONValuePtr ret = NULL;
if (virAsprintf(&mem_path, "/dev/shm/%s", shmem->name) < 0)
return NULL;
if (virAsprintf(&mem_alias, "shmmem-%s", shmem->info.alias) < 0)
goto cleanup;
qemuMonitorCreateObjectProps(&ret, "memory-backend-file", mem_alias,
"s:mem-path", mem_path,
"U:size", shmem->size,
"b:share", true,
NULL);
cleanup:
VIR_FREE(mem_alias);
VIR_FREE(mem_path);
return ret;
}
static int
qemuBuildShmemCommandLine(virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
virDomainShmemDefPtr shmem,
virQEMUCapsPtr qemuCaps,
bool chardevStdioLogd)
{
virJSONValuePtr memProps = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
char *devstr = 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 = virQEMUBuildObjectCommandlineFromJSON(&buf, memProps);
virJSONValueFree(memProps);
if (rc < 0)
return -1;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
ATTRIBUTE_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) {
VIR_FREE(devstr);
return -1;
}
virCommandAddArgList(cmd, "-device", devstr, NULL);
VIR_FREE(devstr);
if (shmem->server.enabled) {
devstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
&shmem->server.chr,
shmem->info.alias, qemuCaps,
cdevflags);
if (!devstr)
return -1;
virCommandAddArgList(cmd, "-chardev", devstr, NULL);
VIR_FREE(devstr);
}
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)
{
char *devstr = NULL;
if (qemuBuildChrDeviceStr(&devstr, def, chr, qemuCaps) < 0)
return -1;
virCommandAddArgList(cmd, "-device", devstr, NULL);
VIR_FREE(devstr);
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];
char *devstr;
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);
VIR_FREE(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];
char *devstr;
if (!(devstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
parallel->source,
parallel->info.alias,
qemuCaps, cdevflags)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(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)
{
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];
char *devstr;
switch (channel->targetType) {
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_GUESTFWD:
if (!(devstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
channel->source,
channel->info.alias,
qemuCaps, cdevflags)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
if (qemuBuildChrDeviceStr(&devstr, def, channel, qemuCaps) < 0)
return -1;
virCommandAddArgList(cmd, "-netdev", devstr, NULL);
VIR_FREE(devstr);
break;
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
if (!(devstr = qemuBuildChrChardevStr(logManager, secManager,
cmd, cfg, def,
channel->source,
channel->info.alias,
qemuCaps, cdevflags)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
if (qemuBuildChrDeviceCommandLine(cmd, def, channel, qemuCaps) < 0)
return -1;
break;
}
}
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 (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_SCLPCONSOLE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("sclpconsole is not supported in this QEMU binary"));
return -1;
}
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 (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_SCLPLMCONSOLE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("sclplmconsole is not supported in this QEMU binary"));
return -1;
}
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:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported console target type %s"),
NULLSTR(virDomainChrConsoleTargetTypeToString(console->targetType)));
return -1;
}
}
return 0;
}
char *
qemuBuildRedirdevDevStr(const virDomainDef *def,
virDomainRedirdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
size_t i;
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainRedirFilterDefPtr redirfilter = def->redirfilter;
if (dev->bus != VIR_DOMAIN_REDIRDEV_BUS_USB) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Redirection bus %s is not supported by QEMU"),
virDomainRedirdevBusTypeToString(dev->bus));
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_REDIR)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("USB redirection is not supported "
"by this version of QEMU"));
goto error;
}
virBufferAsprintf(&buf, "usb-redir,chardev=char%s,id=%s",
dev->info.alias, dev->info.alias);
if (redirfilter && redirfilter->nusbdevs) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_REDIR_FILTER)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("USB redirection filter is not "
"supported by this version of QEMU"));
goto error;
}
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)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
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
qemuBuildDomainLoaderCommandLine(virCommandPtr cmd,
virDomainDefPtr def)
{
virDomainLoaderDefPtr loader = def->os.loader;
virBuffer buf = VIR_BUFFER_INITIALIZER;
int unit = 0;
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:
if (loader->secure == VIR_TRISTATE_BOOL_YES) {
virCommandAddArgList(cmd,
"-global",
"driver=cfi.pflash01,property=secure,value=on",
NULL);
}
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) {
virBufferFreeAndReset(&buf);
virBufferAddLit(&buf, "file=");
virQEMUBuildBufferEscapeComma(&buf, loader->nvram);
virBufferAsprintf(&buf, ",if=pflash,format=raw,unit=%d", unit);
virCommandAddArg(cmd, "-drive");
virCommandAddArgBuffer(cmd, &buf);
}
break;
case VIR_DOMAIN_LOADER_TYPE_NONE:
case VIR_DOMAIN_LOADER_TYPE_LAST:
/* nada */
break;
}
virBufferFreeAndReset(&buf);
}
static char *
qemuBuildTPMDevStr(const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const virDomainTPMDef *tpm = def->tpm;
const char *model = virDomainTPMModelTypeToString(tpm->model);
virQEMUCapsFlags flag;
switch (tpm->model) {
case VIR_DOMAIN_TPM_MODEL_TIS:
flag = QEMU_CAPS_DEVICE_TPM_TIS;
break;
case VIR_DOMAIN_TPM_MODEL_CRB:
flag = QEMU_CAPS_DEVICE_TPM_CRB;
break;
case VIR_DOMAIN_TPM_MODEL_LAST:
default:
virReportEnumRangeError(virDomainTPMModel, tpm->model);
goto error;
}
if (!virQEMUCapsGet(qemuCaps, flag)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("The QEMU executable %s does not support TPM "
"model %s"),
def->emulator, model);
goto error;
}
virBufferAsprintf(&buf, "%s,tpmdev=tpm-%s,id=%s",
model, tpm->info.alias, tpm->info.alias);
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
/* 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(const virDomainDef *def,
virCommandPtr cmd,
virQEMUCapsPtr qemuCaps,
int *tpmfd,
int *cancelfd,
char **chardev)
{
const virDomainTPMDef *tpm = def->tpm;
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *type = NULL;
char *cancel_path = NULL;
char *devset = NULL;
char *cancelset = NULL;
const char *tpmdev;
*tpmfd = -1;
*cancelfd = -1;
switch (tpm->type) {
case VIR_DOMAIN_TPM_TYPE_PASSTHROUGH:
case VIR_DOMAIN_TPM_TYPE_EMULATOR:
type = virDomainTPMBackendTypeToString(tpm->type);
break;
case VIR_DOMAIN_TPM_TYPE_LAST:
goto error;
}
virBufferAsprintf(&buf, "%s,id=tpm-%s", type, tpm->info.alias);
switch (tpm->type) {
case VIR_DOMAIN_TPM_TYPE_PASSTHROUGH:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_TPM_PASSTHROUGH))
goto no_support;
tpmdev = tpm->data.passthrough.source.data.file.path;
if (!(cancel_path = virTPMCreateCancelPath(tpmdev)))
goto error;
if (qemuBuildTPMOpenBackendFDs(tpmdev, cancel_path, tpmfd, cancelfd) < 0)
goto error;
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)))
goto error;
virBufferAddLit(&buf, ",path=");
virQEMUBuildBufferEscapeComma(&buf, devset);
virBufferAddLit(&buf, ",cancel-path=");
virQEMUBuildBufferEscapeComma(&buf, cancelset);
VIR_FREE(devset);
VIR_FREE(cancelset);
VIR_FREE(cancel_path);
break;
case VIR_DOMAIN_TPM_TYPE_EMULATOR:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_TPM_EMULATOR))
goto no_support;
virBufferAddLit(&buf, ",chardev=chrtpm");
if (virAsprintf(chardev, "socket,id=chrtpm,path=%s",
tpm->data.emulator.source.data.nix.path) < 0)
goto error;
break;
case VIR_DOMAIN_TPM_TYPE_LAST:
goto error;
}
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
no_support:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("The QEMU executable %s does not support TPM "
"backend type %s"),
def->emulator, type);
error:
VIR_FREE(devset);
VIR_FREE(cancel_path);
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildTPMCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
char *optstr;
char *chardev = NULL;
int tpmfd = -1;
int cancelfd = -1;
char *fdset;
if (!def->tpm)
return 0;
if (!(optstr = qemuBuildTPMBackendStr(def, cmd, qemuCaps,
&tpmfd, &cancelfd,
&chardev)))
return -1;
virCommandAddArgList(cmd, "-tpmdev", optstr, NULL);
VIR_FREE(optstr);
if (chardev) {
virCommandAddArgList(cmd, "-chardev", chardev, NULL);
VIR_FREE(chardev);
}
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, qemuCaps)))
return -1;
virCommandAddArgList(cmd, "-device", optstr, NULL);
VIR_FREE(optstr);
return 0;
}
static int
qemuBuildSEVCommandLine(virDomainObjPtr vm, virCommandPtr cmd,
virDomainSEVDefPtr sev)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
qemuDomainObjPrivatePtr priv = vm->privateData;
char *path = NULL;
int ret = -1;
if (!sev)
return 0;
VIR_DEBUG("policy=0x%x cbitpos=%d reduced_phys_bits=%d",
sev->policy, sev->cbitpos, sev->reduced_phys_bits);
virBufferAsprintf(&buf, "sev-guest,id=sev0,cbitpos=%d", sev->cbitpos);
virBufferAsprintf(&buf, ",reduced-phys-bits=%d", sev->reduced_phys_bits);
virBufferAsprintf(&buf, ",policy=0x%x", sev->policy);
if (sev->dh_cert) {
if (virAsprintf(&path, "%s/dh_cert.base64", priv->libDir) < 0)
goto cleanup;
virBufferAsprintf(&buf, ",dh-cert-file=%s", path);
VIR_FREE(path);
}
if (sev->session) {
if (virAsprintf(&path, "%s/session.base64", priv->libDir) < 0)
goto cleanup;
virBufferAsprintf(&buf, ",session-file=%s", path);
VIR_FREE(path);
}
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
ret = 0;
cleanup:
virBufferFreeAndReset(&buf);
return ret;
}
static int
qemuBuildVMCoreInfoCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virTristateSwitch vmci = def->features[VIR_DOMAIN_FEATURE_VMCOREINFO];
if (vmci != VIR_TRISTATE_SWITCH_ON)
return 0;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VMCOREINFO)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("vmcoreinfo is not available "
"with this QEMU binary"));
return -1;
}
virCommandAddArgList(cmd, "-device", "vmcoreinfo", NULL);
return 0;
}
static int
qemuBuildPanicCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->npanics; i++) {
switch ((virDomainPanicModel) def->panics[i]->model) {
case VIR_DOMAIN_PANIC_MODEL_S390:
/* For s390 guests, the hardware provides the same
* functionality as the pvpanic device. The address
* cannot be configured by the user */
if (!ARCH_IS_S390(def->os.arch)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only S390 guests support "
"panic device of model 's390'"));
return -1;
}
if (def->panics[i]->info.type !=
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("setting the panic device address is not "
"supported for model 's390'"));
return -1;
}
break;
case VIR_DOMAIN_PANIC_MODEL_HYPERV:
/* Panic with model 'hyperv' is not a device, it should
* be configured in cpu commandline. The address
* cannot be configured by the user */
if (!ARCH_IS_X86(def->os.arch)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only i686 and x86_64 guests support "
"panic device of model 'hyperv'"));
return -1;
}
if (def->panics[i]->info.type !=
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("setting the panic device address is not "
"supported for model 'hyperv'"));
return -1;
}
break;
case VIR_DOMAIN_PANIC_MODEL_PSERIES:
/* For pSeries guests, the firmware provides the same
* functionality as the pvpanic device. The address
* cannot be configured by the user */
if (!qemuDomainIsPSeries(def)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only pSeries guests support panic device "
"of model 'pseries'"));
return -1;
}
if (def->panics[i]->info.type !=
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("setting the panic device address is not "
"supported for model 'pseries'"));
return -1;
}
break;
case VIR_DOMAIN_PANIC_MODEL_ISA:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_PANIC)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the QEMU binary does not support the "
"ISA panic device"));
return -1;
}
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;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("panic is supported only "
"with ISA address type"));
return -1;
}
/* 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)
{
char *path = NULL;
virJSONValuePtr ret = NULL;
if (!(path = qemuDomainGetManagedPRSocketPath(priv)))
return NULL;
ret = qemuBuildPRManagerInfoPropsInternal(qemuDomainGetManagedPRAlias(),
path);
VIR_FREE(path);
return ret;
}
/**
* 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)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virJSONValuePtr props = NULL;
int ret = -1;
if (!virDomainDefHasManagedPR(def))
return 0;
if (!(props = qemuBuildPRManagedManagerInfoProps(priv)))
return -1;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, props) < 0)
goto cleanup;
virCommandAddArg(cmd, "-object");
virCommandAddArgBuffer(cmd, &buf);
ret = 0;
cleanup:
virBufferFreeAndReset(&buf);
virJSONValueFree(props);
return ret;
}
/**
* 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 (!virQEMUDriverIsPrivileged(driver)) {
/* 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 ATTRIBUTE_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;
virBuffer buf = VIR_BUFFER_INITIALIZER;
char *ret = NULL;
if (qemuBuildVirtioDevStr(&buf, "vhost-vsock", qemuCaps,
VIR_DOMAIN_DEVICE_VSOCK, vsock) < 0) {
goto cleanup;
}
virBufferAsprintf(&buf, ",id=%s", vsock->info.alias);
virBufferAsprintf(&buf, ",guest-cid=%u", vsock->guest_cid);
virBufferAsprintf(&buf, ",vhostfd=%s%u", fdprefix, priv->vhostfd);
if (qemuBuildDeviceAddressStr(&buf, def, &vsock->info, qemuCaps) < 0)
goto cleanup;
if (virBufferCheckError(&buf) < 0)
goto cleanup;
ret = virBufferContentAndReset(&buf);
cleanup:
virBufferFreeAndReset(&buf);
return ret;
}
static int
qemuBuildVsockCommandLine(virCommandPtr cmd,
virDomainDefPtr def,
virDomainVsockDefPtr vsock,
virQEMUCapsPtr qemuCaps)
{
qemuDomainVsockPrivatePtr priv = (qemuDomainVsockPrivatePtr)vsock->privateData;
char *devstr = NULL;
int ret = -1;
if (!(devstr = qemuBuildVsockDevStr(def, vsock, qemuCaps, "")))
goto cleanup;
virCommandPassFD(cmd, priv->vhostfd, VIR_COMMAND_PASS_FD_CLOSE_PARENT);
priv->vhostfd = -1;
if (qemuCommandAddExtDevice(cmd, &vsock->info) < 0)
goto cleanup;
virCommandAddArgList(cmd, "-device", devstr, NULL);
ret = 0;
cleanup:
VIR_FREE(devstr);
return ret;
}
/*
* 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)
{
size_t i;
char uuid[VIR_UUID_STRING_BUFLEN];
virCommandPtr cmd = NULL;
virQEMUDriverConfigPtr 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 json=%d "
"qemuCaps=%p migrateURI=%s snapshot=%p vmop=%d",
driver, def, priv->monConfig, priv->monJSON,
qemuCaps, migrateURI, snapshot, vmop);
if (qemuBuildCommandLineValidate(driver, def) < 0)
goto error;
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)
goto error;
if (!standalone)
virCommandAddArg(cmd, "-S"); /* freeze CPU */
if (qemuBuildMasterKeyCommandLine(cmd, priv) < 0)
goto error;
if (qemuBuildManagedPRCommandLine(cmd, def, priv) < 0)
goto error;
if (enableFips)
virCommandAddArg(cmd, "-enable-fips");
if (qemuBuildMachineCommandLine(cmd, cfg, def, qemuCaps) < 0)
goto error;
qemuBuildTSEGCommandLine(cmd, def);
if (qemuBuildCpuCommandLine(cmd, driver, def, qemuCaps) < 0)
goto error;
qemuBuildDomainLoaderCommandLine(cmd, def);
if (!migrateURI && !snapshot && qemuDomainAlignMemorySizes(def) < 0)
goto error;
if (qemuBuildMemCommandLine(cmd, cfg, def, qemuCaps, priv) < 0)
goto error;
if (qemuBuildSmpCommandLine(cmd, def) < 0)
goto error;
if (qemuBuildIOThreadCommandLine(cmd, def) < 0)
goto error;
if (virDomainNumaGetNodeCount(def->numa) &&
qemuBuildNumaArgStr(cfg, def, cmd, priv) < 0)
goto error;
if (qemuBuildMemoryDeviceCommandLine(cmd, cfg, def, priv) < 0)
goto error;
virUUIDFormat(def->uuid, uuid);
virCommandAddArgList(cmd, "-uuid", uuid, NULL);
if (qemuBuildSmbiosCommandLine(cmd, driver, def) < 0)
goto error;
if (qemuBuildVMGenIDCommandLine(cmd, def, qemuCaps) < 0)
goto error;
/*
* 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");
if (cfg->nogfxAllowHostAudio)
virCommandAddEnvPassBlockSUID(cmd, "QEMU_AUDIO_DRV", NULL);
else
virCommandAddEnvString(cmd, "QEMU_AUDIO_DRV=none");
}
/* Disable global config files and default devices */
virCommandAddArg(cmd, "-no-user-config");
virCommandAddArg(cmd, "-nodefaults");
if (qemuBuildSgaCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildMonitorCommandLine(logManager, secManager, cmd, cfg, def, priv) < 0)
goto error;
if (qemuBuildClockCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildPMCommandLine(cmd, def, priv) < 0)
goto error;
if (qemuBuildBootCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildIOMMUCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildGlobalControllerCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildControllersCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildHubCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildControllersByTypeCommandLine(cmd, def, qemuCaps,
VIR_DOMAIN_CONTROLLER_TYPE_CCID) < 0)
goto error;
if (qemuBuildDisksCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildFSDevCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildNetCommandLine(driver, logManager, secManager, cmd, def,
qemuCaps, vmop, standalone,
nnicindexes, nicindexes, &bootHostdevNet) < 0)
goto error;
if (qemuBuildSmartcardCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
goto error;
if (qemuBuildSerialCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
goto error;
if (qemuBuildParallelsCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
goto error;
if (qemuBuildChannelsCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
goto error;
if (qemuBuildConsoleCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
goto error;
if (qemuBuildTPMCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildInputCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildGraphicsCommandLine(cfg, cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildVideoCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildSoundCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildWatchdogCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildRedirdevCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
goto error;
if (qemuBuildHostdevCommandLine(cmd, def, qemuCaps, &bootHostdevNet) < 0)
goto error;
if (migrateURI)
virCommandAddArgList(cmd, "-incoming", migrateURI, NULL);
if (qemuBuildMemballoonCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildRNGCommandLine(logManager, secManager, cmd, cfg, def, qemuCaps,
chardevStdioLogd) < 0)
goto error;
if (qemuBuildNVRAMCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildVMCoreInfoCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildSEVCommandLine(vm, cmd, def->sev) < 0)
goto error;
if (snapshot)
virCommandAddArgList(cmd, "-loadvm", snapshot->def->name, NULL);
if (def->namespaceData) {
qemuDomainCmdlineDefPtr qemucmd;
qemucmd = def->namespaceData;
for (i = 0; i < qemucmd->num_args; i++)
virCommandAddArg(cmd, qemucmd->args[i]);
for (i = 0; i < qemucmd->num_env; i++)
virCommandAddEnvPair(cmd, qemucmd->env_name[i],
NULLSTR_EMPTY(qemucmd->env_value[i]));
}
if (qemuBuildSeccompSandboxCommandLine(cmd, cfg, qemuCaps) < 0)
goto error;
if (qemuBuildPanicCommandLine(cmd, def, qemuCaps) < 0)
goto error;
for (i = 0; i < def->nshmems; i++) {
if (qemuBuildShmemCommandLine(logManager, secManager, cmd, cfg,
def, def->shmems[i], qemuCaps,
chardevStdioLogd))
goto error;
}
if (def->vsock &&
qemuBuildVsockCommandLine(cmd, def, def->vsock, qemuCaps) < 0)
goto error;
/* In some situations, eg. VFIO passthrough, QEMU might need to lock a
* significant amount of memory, so we need to set the limit accordingly */
virCommandSetMaxMemLock(cmd, qemuDomainGetMemLockLimitBytes(def));
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MSG_TIMESTAMP) &&
cfg->logTimestamp)
virCommandAddArgList(cmd, "-msg", "timestamp=on", NULL);
virObjectUnref(cfg);
return cmd;
error:
virObjectUnref(cfg);
virCommandFree(cmd);
return NULL;
}
/* 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)
{
virBuffer cmd = 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));
goto error;
}
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"));
goto error;
}
virBufferAsprintf(&cmd, "%s,chardev=char%s,id=%s",
virDomainChrSerialTargetModelTypeToString(serial->targetModel),
serial->info.alias, serial->info.alias);
if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&cmd) < 0)
goto error;
*deviceStr = virBufferContentAndReset(&cmd);
return 0;
error:
virBufferFreeAndReset(&cmd);
return -1;
}
static int
qemuBuildParallelChrDeviceStr(char **deviceStr,
virDomainChrDefPtr chr)
{
if (virAsprintf(deviceStr, "isa-parallel,chardev=char%s,id=%s",
chr->info.alias, chr->info.alias) < 0)
return -1;
return 0;
}
static int
qemuBuildChannelChrDeviceStr(char **deviceStr,
const virDomainDef *def,
virDomainChrDefPtr chr)
{
int ret = -1;
char *addr = NULL;
int port;
switch ((virDomainChrChannelTargetType)chr->targetType) {
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_GUESTFWD:
addr = virSocketAddrFormat(chr->target.addr);
if (!addr)
return ret;
port = virSocketAddrGetPort(chr->target.addr);
if (virAsprintf(deviceStr,
"user,guestfwd=tcp:%s:%i-chardev:char%s,id=%s",
addr, port, chr->info.alias, chr->info.alias) < 0)
goto cleanup;
break;
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
if (!(*deviceStr = qemuBuildVirtioSerialPortDevStr(def, chr)))
goto cleanup;
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 ret;
}
ret = 0;
cleanup:
VIR_FREE(addr);
return ret;
}
static int
qemuBuildConsoleChrDeviceStr(char **deviceStr,
const virDomainDef *def,
virDomainChrDefPtr chr)
{
int ret = -1;
switch ((virDomainChrConsoleTargetType)chr->targetType) {
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLP:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLPLM:
if (!(*deviceStr = qemuBuildSclpDevStr(chr)))
goto cleanup;
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO:
if (!(*deviceStr = qemuBuildVirtioSerialPortDevStr(def, chr)))
goto cleanup;
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)));
goto cleanup;
}
ret = 0;
cleanup:
return ret;
}
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);
virJSONValuePtr ret = NULL;
if (virJSONValueObjectCreate(&ret, "s:driver", vcpupriv->type,
"s:id", vcpupriv->alias, NULL) < 0)
goto error;
if (vcpupriv->socket_id != -1 &&
virJSONValueObjectAdd(ret, "i:socket-id", vcpupriv->socket_id, NULL) < 0)
goto error;
if (vcpupriv->core_id != -1 &&
virJSONValueObjectAdd(ret, "i:core-id", vcpupriv->core_id, NULL) < 0)
goto error;
if (vcpupriv->thread_id != -1 &&
virJSONValueObjectAdd(ret, "i:thread-id", vcpupriv->thread_id, NULL) < 0)
goto error;
if (vcpupriv->node_id != -1 &&
virJSONValueObjectAdd(ret, "i:node-id", vcpupriv->node_id, NULL) < 0)
goto error;
return ret;
error:
virJSONValueFree(ret);
return NULL;
}
/**
* 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)
{
qemuBlockStorageSourceAttachDataPtr data = NULL;
if (VIR_ALLOC(data) < 0)
return NULL;
if (!(data->driveCmd = qemuBuildDriveStr(disk, qemuCaps)) ||
!(data->driveAlias = qemuAliasDiskDriveFromDisk(disk))) {
qemuBlockStorageSourceAttachDataFree(data);
return NULL;
}
return 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);
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 (src->haveTLS == VIR_TRISTATE_BOOL_YES &&
qemuBuildTLSx509BackendProps(src->tlsCertdir, false, true, src->tlsAlias,
NULL, qemuCaps, &data->tlsProps) < 0)
return -1;
return 0;
}
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