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d8f24f75a8
libvirt/src/qemu/qemu_command.c
Wen Congyang d8f24f75a8 the key of hash table should include the function value 
We save all used PCI address in the hash table. The key is generated by domain,
bus and slot now. We will support multi function PCI device, so the key should
be generated by domain, bus, slot and function.
2011-06-13 09:27:21 +08:00

6387 lines
214 KiB
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/*
* qemu_command.c: QEMU command generation
*
* Copyright (C) 2006-2011 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include "qemu_command.h"
#include "qemu_capabilities.h"
#include "qemu_bridge_filter.h"
#include "cpu/cpu.h"
#include "memory.h"
#include "logging.h"
#include "virterror_internal.h"
#include "util.h"
#include "files.h"
#include "uuid.h"
#include "c-ctype.h"
#include "domain_nwfilter.h"
#include "qemu_audit.h"
#include "domain_conf.h"
#include <sys/utsname.h>
#include <sys/stat.h>
#include <fcntl.h>
#define VIR_FROM_THIS VIR_FROM_QEMU
VIR_ENUM_DECL(virDomainDiskQEMUBus)
VIR_ENUM_IMPL(virDomainDiskQEMUBus, VIR_DOMAIN_DISK_BUS_LAST,
"ide",
"floppy",
"scsi",
"virtio",
"xen",
"usb",
"uml",
"sata")
VIR_ENUM_DECL(qemuDiskCacheV1)
VIR_ENUM_DECL(qemuDiskCacheV2)
VIR_ENUM_IMPL(qemuDiskCacheV1, VIR_DOMAIN_DISK_CACHE_LAST,
"default",
"off",
"off", /* writethrough not supported, so for safety, disable */
"on"); /* Old 'on' was equivalent to 'writeback' */
VIR_ENUM_IMPL(qemuDiskCacheV2, VIR_DOMAIN_DISK_CACHE_LAST,
"default",
"none",
"writethrough",
"writeback");
VIR_ENUM_DECL(qemuVideo)
VIR_ENUM_IMPL(qemuVideo, VIR_DOMAIN_VIDEO_TYPE_LAST,
"std",
"cirrus",
"vmware",
"", /* no arg needed for xen */
"", /* don't support vbox */
"qxl");
static void
uname_normalize (struct utsname *ut)
{
uname(ut);
/* Map i386, i486, i586 to i686. */
if (ut->machine[0] == 'i' &&
ut->machine[1] != '\0' &&
ut->machine[2] == '8' &&
ut->machine[3] == '6' &&
ut->machine[4] == '\0')
ut->machine[1] = '6';
}
/**
* qemuPhysIfaceConnect:
* @def: the definition of the VM (needed by 802.1Qbh and audit)
* @conn: pointer to virConnect object
* @driver: pointer to the qemud_driver
* @net: pointer to he VM's interface description with direct device type
* @qemuCaps: flags for qemu
*
* Returns a filedescriptor on success or -1 in case of error.
*/
int
qemuPhysIfaceConnect(virDomainDefPtr def,
virConnectPtr conn,
struct qemud_driver *driver,
virDomainNetDefPtr net,
virBitmapPtr qemuCaps,
enum virVMOperationType vmop)
{
int rc;
#if WITH_MACVTAP
char *res_ifname = NULL;
int vnet_hdr = 0;
int err;
if (qemuCapsGet(qemuCaps, QEMU_CAPS_VNET_HDR) &&
net->model && STREQ(net->model, "virtio"))
vnet_hdr = 1;
rc = openMacvtapTap(net->ifname, net->mac, net->data.direct.linkdev,
net->data.direct.mode, vnet_hdr, def->uuid,
&net->data.direct.virtPortProfile, &res_ifname,
vmop);
if (rc >= 0) {
qemuAuditNetDevice(def, net, res_ifname, true);
VIR_FREE(net->ifname);
net->ifname = res_ifname;
}
if (rc >=0 && driver->macFilter) {
if ((err = networkAllowMacOnPort(driver, net->ifname, net->mac))) {
virReportSystemError(err,
_("failed to add ebtables rule to allow MAC address on '%s'"),
net->ifname);
}
}
if (rc >= 0) {
if ((net->filter) && (net->ifname)) {
err = virDomainConfNWFilterInstantiate(conn, net);
if (err) {
VIR_FORCE_CLOSE(rc);
delMacvtap(net->ifname, net->mac, net->data.direct.linkdev,
&net->data.direct.virtPortProfile);
VIR_FREE(net->ifname);
}
}
}
#else
(void)def;
(void)conn;
(void)net;
(void)qemuCaps;
(void)driver;
(void)vmop;
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("No support for macvtap device"));
rc = -1;
#endif
return rc;
}
int
qemuNetworkIfaceConnect(virDomainDefPtr def,
virConnectPtr conn,
struct qemud_driver *driver,
virDomainNetDefPtr net,
virBitmapPtr qemuCaps)
{
char *brname = NULL;
int err;
int tapfd = -1;
int vnet_hdr = 0;
int template_ifname = 0;
unsigned char tapmac[VIR_MAC_BUFLEN];
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
int active, fail = 0;
virErrorPtr errobj;
virNetworkPtr network = virNetworkLookupByName(conn,
net->data.network.name);
if (!network)
return -1;
active = virNetworkIsActive(network);
if (active != 1) {
fail = 1;
if (active == 0)
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("Network '%s' is not active."),
net->data.network.name);
}
if (!fail) {
brname = virNetworkGetBridgeName(network);
if (brname == NULL)
fail = 1;
}
/* Make sure any above failure is preserved */
errobj = virSaveLastError();
virNetworkFree(network);
virSetError(errobj);
virFreeError(errobj);
if (fail)
return -1;
} else if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) {
if (!(brname = strdup(net->data.bridge.brname))) {
virReportOOMError();
return -1;
}
} else {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("Network type %d is not supported"), net->type);
return -1;
}
if (!driver->brctl && (err = brInit(&driver->brctl))) {
virReportSystemError(err, "%s",
_("cannot initialize bridge support"));
goto cleanup;
}
if (!net->ifname ||
STRPREFIX(net->ifname, "vnet") ||
strchr(net->ifname, '%')) {
VIR_FREE(net->ifname);
if (!(net->ifname = strdup("vnet%d"))) {
virReportOOMError();
goto cleanup;
}
/* avoid exposing vnet%d in getXMLDesc or error outputs */
template_ifname = 1;
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_VNET_HDR) &&
net->model && STREQ(net->model, "virtio"))
vnet_hdr = 1;
memcpy(tapmac, net->mac, VIR_MAC_BUFLEN);
tapmac[0] = 0xFE; /* Discourage bridge from using TAP dev MAC */
err = brAddTap(driver->brctl, brname, &net->ifname, tapmac,
vnet_hdr, true, &tapfd);
qemuAuditNetDevice(def, net, "/dev/net/tun", tapfd >= 0);
if (err) {
if (err == ENOTSUP) {
/* In this particular case, give a better diagnostic. */
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to add tap interface to bridge. "
"%s is not a bridge device"), brname);
} else if (err == ENOENT) {
/* When the tun drive is missing, give a better message. */
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to add tap interface to bridge. "
"Your kernel is missing the 'tun' module or "
"CONFIG_TUN, or you need to add the "
"/dev/net/tun device node."));
} else if (template_ifname) {
virReportSystemError(err,
_("Failed to add tap interface to bridge '%s'"),
brname);
} else {
virReportSystemError(err,
_("Failed to add tap interface '%s' to bridge '%s'"),
net->ifname, brname);
}
if (template_ifname)
VIR_FREE(net->ifname);
tapfd = -1;
}
if (driver->macFilter) {
if ((err = networkAllowMacOnPort(driver, net->ifname, net->mac))) {
virReportSystemError(err,
_("failed to add ebtables rule to allow MAC address on '%s'"),
net->ifname);
}
}
if (tapfd >= 0) {
if ((net->filter) && (net->ifname)) {
err = virDomainConfNWFilterInstantiate(conn, net);
if (err)
VIR_FORCE_CLOSE(tapfd);
}
}
cleanup:
VIR_FREE(brname);
return tapfd;
}
int
qemuOpenVhostNet(virDomainDefPtr def,
virDomainNetDefPtr net,
virBitmapPtr qemuCaps,
int *vhostfd)
{
*vhostfd = -1; /* assume we won't use vhost */
/* If the config says explicitly to not use vhost, return now */
if (net->driver.virtio.name == VIR_DOMAIN_NET_BACKEND_TYPE_QEMU) {
return 0;
}
/* If qemu doesn't support vhost-net mode (including the -netdev command
* option), don't try to open the device.
*/
if (!(qemuCapsGet(qemuCaps, QEMU_CAPS_VHOST_NET) &&
qemuCapsGet(qemuCaps, QEMU_CAPS_NETDEV) &&
qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE))) {
if (net->driver.virtio.name == VIR_DOMAIN_NET_BACKEND_TYPE_VHOST) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("vhost-net is not supported with "
"this QEMU binary"));
return -1;
}
return 0;
}
/* If the nic model isn't virtio, don't try to open. */
if (!(net->model && STREQ(net->model, "virtio"))) {
if (net->driver.virtio.name == VIR_DOMAIN_NET_BACKEND_TYPE_VHOST) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("vhost-net is only supported for "
"virtio network interfaces"));
return -1;
}
return 0;
}
*vhostfd = open("/dev/vhost-net", O_RDWR);
qemuAuditNetDevice(def, net, "/dev/vhost-net", *vhostfd >= 0);
/* If the config says explicitly to use vhost and we couldn't open it,
* report an error.
*/
if ((*vhostfd < 0) &&
(net->driver.virtio.name == VIR_DOMAIN_NET_BACKEND_TYPE_VHOST)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("vhost-net was requested for an interface, "
"but is unavailable"));
return -1;
}
return 0;
}
static int qemuDomainDeviceAliasIndex(virDomainDeviceInfoPtr info,
const char *prefix)
{
int idx;
if (!info->alias)
return -1;
if (!STRPREFIX(info->alias, prefix))
return -1;
if (virStrToLong_i(info->alias + strlen(prefix), NULL, 10, &idx) < 0)
return -1;
return idx;
}
int qemuDomainNetVLAN(virDomainNetDefPtr def)
{
return qemuDomainDeviceAliasIndex(&def->info, "net");
}
/* Names used before -drive existed */
static int qemuAssignDeviceDiskAliasLegacy(virDomainDiskDefPtr disk)
{
char *devname;
if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM &&
STREQ(disk->dst, "hdc"))
devname = strdup("cdrom");
else
devname = strdup(disk->dst);
if (!devname) {
virReportOOMError();
return -1;
}
disk->info.alias = devname;
return 0;
}
char *qemuDeviceDriveHostAlias(virDomainDiskDefPtr disk,
virBitmapPtr qemuCaps)
{
char *ret;
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
if (virAsprintf(&ret, "%s%s", QEMU_DRIVE_HOST_PREFIX, disk->info.alias) < 0) {
virReportOOMError();
return NULL;
}
} else {
if (!(ret = strdup(disk->info.alias))) {
virReportOOMError();
return NULL;
}
}
return ret;
}
/* Names used before -drive supported the id= option */
static int qemuAssignDeviceDiskAliasFixed(virDomainDiskDefPtr disk)
{
int busid, devid;
int ret;
char *devname;
if (virDiskNameToBusDeviceIndex(disk, &busid, &devid) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot convert disk '%s' to bus/device index"),
disk->dst);
return -1;
}
switch (disk->bus) {
case VIR_DOMAIN_DISK_BUS_IDE:
if (disk->device== VIR_DOMAIN_DISK_DEVICE_DISK)
ret = virAsprintf(&devname, "ide%d-hd%d", busid, devid);
else
ret = virAsprintf(&devname, "ide%d-cd%d", busid, devid);
break;
case VIR_DOMAIN_DISK_BUS_SCSI:
if (disk->device == VIR_DOMAIN_DISK_DEVICE_DISK)
ret = virAsprintf(&devname, "scsi%d-hd%d", busid, devid);
else
ret = virAsprintf(&devname, "scsi%d-cd%d", busid, devid);
break;
case VIR_DOMAIN_DISK_BUS_FDC:
ret = virAsprintf(&devname, "floppy%d", devid);
break;
case VIR_DOMAIN_DISK_BUS_VIRTIO:
ret = virAsprintf(&devname, "virtio%d", devid);
break;
case VIR_DOMAIN_DISK_BUS_XEN:
ret = virAsprintf(&devname, "xenblk%d", devid);
break;
default:
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Unsupported disk name mapping for bus '%s'"),
virDomainDiskBusTypeToString(disk->bus));
return -1;
}
if (ret == -1) {
virReportOOMError();
return -1;
}
disk->info.alias = devname;
return 0;
}
/* Our custom -drive naming scheme used with id= */
static int qemuAssignDeviceDiskAliasCustom(virDomainDiskDefPtr disk)
{
const char *prefix = virDomainDiskBusTypeToString(disk->bus);
if (disk->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE) {
if (virAsprintf(&disk->info.alias, "%s%d-%d-%d", prefix,
disk->info.addr.drive.controller,
disk->info.addr.drive.bus,
disk->info.addr.drive.unit) < 0)
goto no_memory;
} else {
int idx = virDiskNameToIndex(disk->dst);
if (virAsprintf(&disk->info.alias, "%s-disk%d", prefix, idx) < 0)
goto no_memory;
}
return 0;
no_memory:
virReportOOMError();
return -1;
}
int
qemuAssignDeviceDiskAlias(virDomainDiskDefPtr def, virBitmapPtr qemuCaps)
{
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DRIVE)) {
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE))
return qemuAssignDeviceDiskAliasCustom(def);
else
return qemuAssignDeviceDiskAliasFixed(def);
} else {
return qemuAssignDeviceDiskAliasLegacy(def);
}
}
int
qemuAssignDeviceNetAlias(virDomainDefPtr def, virDomainNetDefPtr net, int idx)
{
if (idx == -1) {
int i;
idx = 0;
for (i = 0 ; i < def->nnets ; i++) {
int thisidx;
if ((thisidx = qemuDomainDeviceAliasIndex(&def->nets[i]->info, "net")) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Unable to determine device index for network device"));
return -1;
}
if (thisidx >= idx)
idx = thisidx + 1;
}
}
if (virAsprintf(&net->info.alias, "net%d", idx) < 0) {
virReportOOMError();
return -1;
}
return 0;
}
int
qemuAssignDeviceHostdevAlias(virDomainDefPtr def, virDomainHostdevDefPtr hostdev, int idx)
{
if (idx == -1) {
int i;
idx = 0;
for (i = 0 ; i < def->nhostdevs ; i++) {
int thisidx;
if ((thisidx = qemuDomainDeviceAliasIndex(&def->hostdevs[i]->info, "hostdev")) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Unable to determine device index for hostdev device"));
return -1;
}
if (thisidx >= idx)
idx = thisidx + 1;
}
}
if (virAsprintf(&hostdev->info.alias, "hostdev%d", idx) < 0) {
virReportOOMError();
return -1;
}
return 0;
}
int
qemuAssignDeviceControllerAlias(virDomainControllerDefPtr controller)
{
const char *prefix = virDomainControllerTypeToString(controller->type);
if (virAsprintf(&controller->info.alias, "%s%d", prefix,
controller->idx) < 0) {
virReportOOMError();
return -1;
}
return 0;
}
static int
qemuAssignDeviceAliases(virDomainDefPtr def, virBitmapPtr qemuCaps)
{
int i;
for (i = 0; i < def->ndisks ; i++) {
if (qemuAssignDeviceDiskAlias(def->disks[i], qemuCaps) < 0)
return -1;
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_NET_NAME) ||
qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
for (i = 0; i < def->nnets ; i++) {
if (qemuAssignDeviceNetAlias(def, def->nets[i], i) < 0)
return -1;
}
}
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE))
return 0;
for (i = 0; i < def->nfss ; i++) {
if (virAsprintf(&def->fss[i]->info.alias, "fs%d", i) < 0)
goto no_memory;
}
for (i = 0; i < def->nsounds ; i++) {
if (virAsprintf(&def->sounds[i]->info.alias, "sound%d", i) < 0)
goto no_memory;
}
for (i = 0; i < def->nhostdevs ; i++) {
if (qemuAssignDeviceHostdevAlias(def, def->hostdevs[i], i) < 0)
return -1;
}
for (i = 0; i < def->nvideos ; i++) {
if (virAsprintf(&def->videos[i]->info.alias, "video%d", i) < 0)
goto no_memory;
}
for (i = 0; i < def->ncontrollers ; i++) {
if (qemuAssignDeviceControllerAlias(def->controllers[i]) < 0)
return -1;
}
for (i = 0; i < def->ninputs ; i++) {
if (virAsprintf(&def->inputs[i]->info.alias, "input%d", i) < 0)
goto no_memory;
}
for (i = 0; i < def->nparallels ; i++) {
if (virAsprintf(&def->parallels[i]->info.alias, "parallel%d", i) < 0)
goto no_memory;
}
for (i = 0; i < def->nserials ; i++) {
if (virAsprintf(&def->serials[i]->info.alias, "serial%d", i) < 0)
goto no_memory;
}
for (i = 0; i < def->nchannels ; i++) {
if (virAsprintf(&def->channels[i]->info.alias, "channel%d", i) < 0)
goto no_memory;
}
for (i = 0; i < def->nsmartcards ; i++) {
if (virAsprintf(&def->smartcards[i]->info.alias, "smartcard%d", i) < 0)
goto no_memory;
}
if (def->console) {
if (virAsprintf(&def->console->info.alias, "console%d", i) < 0)
goto no_memory;
}
if (def->watchdog) {
if (virAsprintf(&def->watchdog->info.alias, "watchdog%d", 0) < 0)
goto no_memory;
}
if (def->memballoon) {
if (virAsprintf(&def->memballoon->info.alias, "balloon%d", 0) < 0)
goto no_memory;
}
return 0;
no_memory:
virReportOOMError();
return -1;
}
#define QEMU_PCI_ADDRESS_LAST_SLOT 31
struct _qemuDomainPCIAddressSet {
virHashTablePtr used;
int nextslot;
};
static char *qemuPCIAddressAsString(virDomainDeviceInfoPtr dev)
{
char *addr;
if (dev->addr.pci.domain != 0 ||
dev->addr.pci.bus != 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Only PCI domain 0 and bus 0 are available"));
return NULL;
}
if (virAsprintf(&addr, "%d:%d:%d.%d",
dev->addr.pci.domain,
dev->addr.pci.bus,
dev->addr.pci.slot,
dev->addr.pci.function) < 0) {
virReportOOMError();
return NULL;
}
return addr;
}
static int qemuCollectPCIAddress(virDomainDefPtr def ATTRIBUTE_UNUSED,
virDomainDeviceInfoPtr dev,
void *opaque)
{
qemuDomainPCIAddressSetPtr addrs = opaque;
if (dev->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
char *addr = qemuPCIAddressAsString(dev);
if (!addr)
return -1;
VIR_DEBUG("Remembering PCI addr %s", addr);
if (virHashAddEntry(addrs->used, addr, addr) < 0) {
VIR_FREE(addr);
return -1;
}
}
return 0;
}
int
qemuDomainAssignPCIAddresses(virDomainDefPtr def)
{
int ret = -1;
virBitmapPtr qemuCaps = NULL;
qemuDomainPCIAddressSetPtr addrs = NULL;
if (qemuCapsExtractVersionInfo(def->emulator, def->os.arch,
NULL,
&qemuCaps) < 0)
goto cleanup;
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
if (!(addrs = qemuDomainPCIAddressSetCreate(def)))
goto cleanup;
if (qemuAssignDevicePCISlots(def, addrs) < 0)
goto cleanup;
}
ret = 0;
cleanup:
qemuCapsFree(qemuCaps);
qemuDomainPCIAddressSetFree(addrs);
return ret;
}
static void
qemuDomainPCIAddressSetFreeEntry(void *payload,
const void *name ATTRIBUTE_UNUSED)
{
VIR_FREE(payload);
}
qemuDomainPCIAddressSetPtr qemuDomainPCIAddressSetCreate(virDomainDefPtr def)
{
qemuDomainPCIAddressSetPtr addrs;
if (VIR_ALLOC(addrs) < 0)
goto no_memory;
if (!(addrs->used = virHashCreate(10, qemuDomainPCIAddressSetFreeEntry)))
goto error;
if (virDomainDeviceInfoIterate(def, qemuCollectPCIAddress, addrs) < 0)
goto error;
return addrs;
no_memory:
virReportOOMError();
error:
qemuDomainPCIAddressSetFree(addrs);
return NULL;
}
int qemuDomainPCIAddressReserveAddr(qemuDomainPCIAddressSetPtr addrs,
virDomainDeviceInfoPtr dev)
{
char *addr;
addr = qemuPCIAddressAsString(dev);
if (!addr)
return -1;
VIR_DEBUG("Reserving PCI addr %s", addr);
if (virHashLookup(addrs->used, addr)) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unable to reserve PCI address %s"), addr);
VIR_FREE(addr);
return -1;
}
if (virHashAddEntry(addrs->used, addr, addr)) {
VIR_FREE(addr);
return -1;
}
if (dev->addr.pci.slot > addrs->nextslot) {
addrs->nextslot = dev->addr.pci.slot + 1;
if (QEMU_PCI_ADDRESS_LAST_SLOT < addrs->nextslot)
addrs->nextslot = 0;
}
return 0;
}
int qemuDomainPCIAddressReserveSlot(qemuDomainPCIAddressSetPtr addrs,
int slot)
{
virDomainDeviceInfo dev;
dev.addr.pci.domain = 0;
dev.addr.pci.bus = 0;
dev.addr.pci.slot = slot;
dev.addr.pci.function = 0;
return qemuDomainPCIAddressReserveAddr(addrs, &dev);
}
int qemuDomainPCIAddressEnsureAddr(qemuDomainPCIAddressSetPtr addrs,
virDomainDeviceInfoPtr dev)
{
int ret = 0;
if (dev->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI)
ret = qemuDomainPCIAddressReserveAddr(addrs, dev);
else
ret = qemuDomainPCIAddressSetNextAddr(addrs, dev);
return ret;
}
int qemuDomainPCIAddressReleaseAddr(qemuDomainPCIAddressSetPtr addrs,
virDomainDeviceInfoPtr dev)
{
char *addr;
int ret;
addr = qemuPCIAddressAsString(dev);
if (!addr)
return -1;
ret = virHashRemoveEntry(addrs->used, addr);
VIR_FREE(addr);
return ret;
}
void qemuDomainPCIAddressSetFree(qemuDomainPCIAddressSetPtr addrs)
{
if (!addrs)
return;
virHashFree(addrs->used);
VIR_FREE(addrs);
}
int qemuDomainPCIAddressSetNextAddr(qemuDomainPCIAddressSetPtr addrs,
virDomainDeviceInfoPtr dev)
{
int i;
int iteration;
for (i = addrs->nextslot, iteration = 0;
iteration <= QEMU_PCI_ADDRESS_LAST_SLOT; i++, iteration++) {
virDomainDeviceInfo maybe;
char *addr;
if (QEMU_PCI_ADDRESS_LAST_SLOT < i)
i = 0;
memset(&maybe, 0, sizeof(maybe));
maybe.addr.pci.domain = 0;
maybe.addr.pci.bus = 0;
maybe.addr.pci.slot = i;
maybe.addr.pci.function = 0;
if (!(addr = qemuPCIAddressAsString(&maybe)))
return -1;
if (virHashLookup(addrs->used, addr)) {
VIR_DEBUG("PCI addr %s already in use", addr);
VIR_FREE(addr);
continue;
}
VIR_DEBUG("Allocating PCI addr %s", addr);
if (virHashAddEntry(addrs->used, addr, addr) < 0) {
VIR_FREE(addr);
return -1;
}
dev->type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI;
dev->addr.pci = maybe.addr.pci;
addrs->nextslot = i + 1;
if (QEMU_PCI_ADDRESS_LAST_SLOT < addrs->nextslot)
addrs->nextslot = 0;
return 0;
}
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("No more available PCI addresses"));
return -1;
}
/*
* This assigns static PCI slots to all configured devices.
* The ordering here is chosen to match the ordering used
* with old QEMU < 0.12, so that if a user updates a QEMU
* host from old QEMU to QEMU >= 0.12, their guests should
* get PCI addresses in the same order as before.
*
* NB, if they previously hotplugged devices then all bets
* are off. Hotplug for old QEMU was unfixably broken wrt
* to stable PCI addressing.
*
* Order is:
*
* - Host bridge (slot 0)
* - PIIX3 ISA bridge, IDE controller, something else unknown, USB controller (slot 1)
* - Video (slot 2)
*
* Incrementally assign slots from 3 onwards:
*
* - Net
* - Sound
* - SCSI controllers
* - VirtIO block
* - VirtIO balloon
* - Host device passthrough
* - Watchdog (not IB700)
*
* Prior to this function being invoked, qemuCollectPCIAddress() will have
* added all existing PCI addresses from the 'def' to 'addrs'. Thus this
* function must only try to reserve addresses if info.type == NONE and
* skip over info.type == PCI
*/
int
qemuAssignDevicePCISlots(virDomainDefPtr def, qemuDomainPCIAddressSetPtr addrs)
{
int i;
bool reservedIDE = false;
bool reservedVGA = false;
/* Host bridge */
if (qemuDomainPCIAddressReserveSlot(addrs, 0) < 0)
goto error;
/* Verify that first IDE controller (if any) is on the PIIX3, fn 1 */
for (i = 0; i < def->ncontrollers ; i++) {
/* First IDE controller lives on the PIIX3 at slot=1, function=1 */
if (def->controllers[i]->type == VIR_DOMAIN_CONTROLLER_TYPE_IDE &&
def->controllers[i]->idx == 0) {
if (def->controllers[i]->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
if (def->controllers[i]->info.addr.pci.domain != 0 ||
def->controllers[i]->info.addr.pci.bus != 0 ||
def->controllers[i]->info.addr.pci.slot != 1 ||
def->controllers[i]->info.addr.pci.function != 1) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Primary IDE controller must have PCI address 0:0:1.1"));
goto error;
}
/* If TYPE==PCI, then qemuCollectPCIAddress() function
* has already reserved the address, so we must skip */
reservedIDE = true;
} else {
def->controllers[i]->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI;
def->controllers[i]->info.addr.pci.domain = 0;
def->controllers[i]->info.addr.pci.bus = 0;
def->controllers[i]->info.addr.pci.slot = 1;
def->controllers[i]->info.addr.pci.function = 1;
}
}
}
/* PIIX3 (ISA bridge, IDE controller, something else unknown, USB controller)
* hardcoded slot=1, multifunction device
*/
if (!reservedIDE &&
qemuDomainPCIAddressReserveSlot(addrs, 1) < 0)
goto error;
/* First VGA is hardcoded slot=2 */
if (def->nvideos > 0) {
if (def->videos[0]->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
if (def->videos[0]->info.addr.pci.domain != 0 ||
def->videos[0]->info.addr.pci.bus != 0 ||
def->videos[0]->info.addr.pci.slot != 2 ||
def->videos[0]->info.addr.pci.function != 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Primary video card must have PCI address 0:0:2.0"));
goto error;
}
/* If TYPE==PCI, then qemuCollectPCIAddress() function
* has already reserved the address, so we must skip */
reservedVGA = true;
} else {
def->videos[0]->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI;
def->videos[0]->info.addr.pci.domain = 0;
def->videos[0]->info.addr.pci.bus = 0;
def->videos[0]->info.addr.pci.slot = 2;
def->videos[0]->info.addr.pci.function = 0;
}
}
if (!reservedVGA
&& qemuDomainPCIAddressReserveSlot(addrs, 2) < 0)
goto error;
for (i = 0; i < def->nfss ; i++) {
if (def->fss[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
continue;
/* Only support VirtIO-9p-pci so far. If that changes,
* we might need to skip devices here */
if (qemuDomainPCIAddressSetNextAddr(addrs, &def->fss[i]->info) < 0)
goto error;
}
/* Network interfaces */
for (i = 0; i < def->nnets ; i++) {
if (def->nets[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
continue;
if (qemuDomainPCIAddressSetNextAddr(addrs, &def->nets[i]->info) < 0)
goto error;
}
/* Sound cards */
for (i = 0; i < def->nsounds ; i++) {
if (def->sounds[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
continue;
/* Skip ISA sound card, and PCSPK */
if (def->sounds[i]->model == VIR_DOMAIN_SOUND_MODEL_SB16 ||
def->sounds[i]->model == VIR_DOMAIN_SOUND_MODEL_PCSPK)
continue;
if (qemuDomainPCIAddressSetNextAddr(addrs, &def->sounds[i]->info) < 0)
goto error;
}
/* Disk controllers (SCSI only for now) */
for (i = 0; i < def->ncontrollers ; i++) {
/* FDC lives behind the ISA bridge; CCID is a usb device */
if (def->controllers[i]->type == VIR_DOMAIN_CONTROLLER_TYPE_FDC ||
def->controllers[i]->type == VIR_DOMAIN_CONTROLLER_TYPE_CCID)
continue;
/* First IDE controller lives on the PIIX3 at slot=1, function=1,
dealt with earlier on*/
if (def->controllers[i]->type == VIR_DOMAIN_CONTROLLER_TYPE_IDE &&
def->controllers[i]->idx == 0)
continue;
if (def->controllers[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
continue;
if (qemuDomainPCIAddressSetNextAddr(addrs, &def->controllers[i]->info) < 0)
goto error;
}
/* Disks (VirtIO only for now */
for (i = 0; i < def->ndisks ; i++) {
if (def->disks[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
continue;
/* Only VirtIO disks use PCI addrs */
if (def->disks[i]->bus != VIR_DOMAIN_DISK_BUS_VIRTIO)
continue;
if (qemuDomainPCIAddressSetNextAddr(addrs, &def->disks[i]->info) < 0)
goto error;
}
/* Host PCI devices */
for (i = 0; i < def->nhostdevs ; i++) {
if (def->hostdevs[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
continue;
if (def->hostdevs[i]->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS ||
def->hostdevs[i]->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
continue;
if (qemuDomainPCIAddressSetNextAddr(addrs, &def->hostdevs[i]->info) < 0)
goto error;
}
/* VirtIO balloon */
if (def->memballoon &&
def->memballoon->model == VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO &&
def->memballoon->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
if (qemuDomainPCIAddressSetNextAddr(addrs, &def->memballoon->info) < 0)
goto error;
}
/* A watchdog - skip IB700, it is not a PCI device */
if (def->watchdog &&
def->watchdog->model != VIR_DOMAIN_WATCHDOG_MODEL_IB700 &&
def->watchdog->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
if (qemuDomainPCIAddressSetNextAddr(addrs, &def->watchdog->info) < 0)
goto error;
}
/* Further non-primary video cards */
for (i = 1; i < def->nvideos ; i++) {
if (def->videos[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
continue;
if (qemuDomainPCIAddressSetNextAddr(addrs, &def->videos[i]->info) < 0)
goto error;
}
for (i = 0; i < def->ninputs ; i++) {
/* Nada - none are PCI based (yet) */
}
for (i = 0; i < def->nparallels ; i++) {
/* Nada - none are PCI based (yet) */
}
for (i = 0; i < def->nserials ; i++) {
/* Nada - none are PCI based (yet) */
}
for (i = 0; i < def->nchannels ; i++) {
/* Nada - none are PCI based (yet) */
}
return 0;
error:
return -1;
}
static int
qemuBuildDeviceAddressStr(virBufferPtr buf,
virDomainDeviceInfoPtr info,
virBitmapPtr qemuCaps)
{
if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
if (info->addr.pci.domain != 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Only PCI device addresses with domain=0 are supported"));
return -1;
}
if (info->addr.pci.bus != 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Only PCI device addresses with bus=0 are supported"));
return -1;
}
if (info->addr.pci.function != 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Only PCI device addresses with function=0 are supported"));
return -1;
}
/* XXX
* When QEMU grows support for > 1 PCI bus, then pci.0 changes
* to pci.1, pci.2, etc
* When QEMU grows support for > 1 PCI domain, then pci.0 change
* to pciNN.0 where NN is the domain number
*/
if (qemuCapsGet(qemuCaps, QEMU_CAPS_PCI_MULTIBUS))
virBufferAsprintf(buf, ",bus=pci.0,addr=0x%x", info->addr.pci.slot);
else
virBufferAsprintf(buf, ",bus=pci,addr=0x%x", info->addr.pci.slot);
}
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)) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("driver serial '%s' contains unsafe characters"),
value);
return -1;
}
return 0;
}
char *
qemuBuildDriveStr(virDomainDiskDefPtr disk,
int bootable,
virBitmapPtr qemuCaps)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
const char *bus = virDomainDiskQEMUBusTypeToString(disk->bus);
int idx = virDiskNameToIndex(disk->dst);
int busid = -1, unitid = -1;
if (idx < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk type '%s'"), disk->dst);
goto error;
}
switch (disk->bus) {
case VIR_DOMAIN_DISK_BUS_SCSI:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unexpected address type for scsi disk"));
goto error;
}
/* 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) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("SCSI controller only supports 1 bus"));
goto error;
}
busid = disk->info.addr.drive.controller;
unitid = disk->info.addr.drive.unit;
break;
case VIR_DOMAIN_DISK_BUS_IDE:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unexpected address type for ide disk"));
goto error;
}
/* We can only have 1 IDE controller (currently) */
if (disk->info.addr.drive.controller != 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("Only 1 %s controller is supported"), bus);
goto error;
}
busid = disk->info.addr.drive.bus;
unitid = disk->info.addr.drive.unit;
break;
case VIR_DOMAIN_DISK_BUS_FDC:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unexpected address type for fdc disk"));
goto error;
}
/* We can only have 1 FDC controller (currently) */
if (disk->info.addr.drive.controller != 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("Only 1 %s controller is supported"), bus);
goto error;
}
/* We can only have 1 FDC bus (currently) */
if (disk->info.addr.drive.bus != 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("Only 1 %s bus is supported"), bus);
goto error;
}
unitid = disk->info.addr.drive.unit;
break;
case VIR_DOMAIN_DISK_BUS_VIRTIO:
/* Each virtio drive is a separate PCI device, no unit/busid or index */
idx = -1;
break;
case VIR_DOMAIN_DISK_BUS_XEN:
/* Xen has no address type currently, so assign based on index */
break;
}
/* disk->src is NULL when we use nbd disks */
if (disk->src || (disk->type == VIR_DOMAIN_DISK_TYPE_NETWORK &&
disk->protocol == VIR_DOMAIN_DISK_PROTOCOL_NBD)) {
if (disk->type == VIR_DOMAIN_DISK_TYPE_DIR) {
/* QEMU only supports magic FAT format for now */
if (disk->driverType &&
STRNEQ(disk->driverType, "fat")) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk driver type for '%s'"),
disk->driverType);
goto error;
}
if (!disk->readonly) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cannot create virtual FAT disks in read-write mode"));
goto error;
}
if (disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY)
virBufferAsprintf(&opt, "file=fat:floppy:%s,", disk->src);
else
virBufferAsprintf(&opt, "file=fat:%s,", disk->src);
} else if (disk->type == VIR_DOMAIN_DISK_TYPE_NETWORK) {
switch (disk->protocol) {
case VIR_DOMAIN_DISK_PROTOCOL_NBD:
if (disk->nhosts != 1) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("NBD accepts only one host"));
goto error;
}
virBufferAsprintf(&opt, "file=nbd:%s:%s,",
disk->hosts->name, disk->hosts->port);
break;
case VIR_DOMAIN_DISK_PROTOCOL_RBD:
/* TODO: set monitor hostnames */
virBufferAsprintf(&opt, "file=rbd:%s,", disk->src);
break;
case VIR_DOMAIN_DISK_PROTOCOL_SHEEPDOG:
if (disk->nhosts == 0)
virBufferAsprintf(&opt, "file=sheepdog:%s,", disk->src);
else
/* only one host is supported now */
virBufferAsprintf(&opt, "file=sheepdog:%s:%s:%s,",
disk->hosts->name, disk->hosts->port,
disk->src);
break;
}
} else {
virBufferAsprintf(&opt, "file=%s,", disk->src);
}
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE))
virBufferAddLit(&opt, "if=none");
else
virBufferAsprintf(&opt, "if=%s", bus);
if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
virBufferAddLit(&opt, ",media=cdrom");
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
virBufferAsprintf(&opt, ",id=%s%s", QEMU_DRIVE_HOST_PREFIX, disk->info.alias);
} else {
if (busid == -1 && unitid == -1) {
if (idx != -1)
virBufferAsprintf(&opt, ",index=%d", idx);
} else {
if (busid != -1)
virBufferAsprintf(&opt, ",bus=%d", busid);
if (unitid != -1)
virBufferAsprintf(&opt, ",unit=%d", unitid);
}
}
if (bootable &&
disk->device == VIR_DOMAIN_DISK_DEVICE_DISK &&
disk->bus != VIR_DOMAIN_DISK_BUS_IDE)
virBufferAddLit(&opt, ",boot=on");
if (disk->readonly &&
qemuCapsGet(qemuCaps, QEMU_CAPS_DRIVE_READONLY))
virBufferAddLit(&opt, ",readonly=on");
if (disk->driverType && *disk->driverType != '\0' &&
disk->type != VIR_DOMAIN_DISK_TYPE_DIR &&
qemuCapsGet(qemuCaps, QEMU_CAPS_DRIVE_FORMAT))
virBufferAsprintf(&opt, ",format=%s", disk->driverType);
if (disk->serial &&
qemuCapsGet(qemuCaps, QEMU_CAPS_DRIVE_SERIAL)) {
if (qemuSafeSerialParamValue(disk->serial) < 0)
goto error;
virBufferAsprintf(&opt, ",serial=%s", disk->serial);
}
if (disk->cachemode) {
const char *mode =
qemuCapsGet(qemuCaps, QEMU_CAPS_DRIVE_CACHE_V2) ?
qemuDiskCacheV2TypeToString(disk->cachemode) :
qemuDiskCacheV1TypeToString(disk->cachemode);
virBufferAsprintf(&opt, ",cache=%s", mode);
} else if (disk->shared && !disk->readonly) {
virBufferAddLit(&opt, ",cache=off");
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_MONITOR_JSON)) {
if (disk->error_policy) {
virBufferAsprintf(&opt, ",werror=%s,rerror=%s",
virDomainDiskErrorPolicyTypeToString(disk->error_policy),
virDomainDiskErrorPolicyTypeToString(disk->error_policy));
}
}
if (disk->iomode) {
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DRIVE_AIO)) {
virBufferAsprintf(&opt, ",aio=%s",
virDomainDiskIoTypeToString(disk->iomode));
} else {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("disk aio mode not supported with this "
"QEMU binary"));
goto error;
}
}
if (virBufferError(&opt)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&opt);
error:
virBufferFreeAndReset(&opt);
return NULL;
}
char *
qemuBuildDriveDevStr(virDomainDiskDefPtr disk,
virBitmapPtr qemuCaps)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
const char *bus = virDomainDiskQEMUBusTypeToString(disk->bus);
int idx = virDiskNameToIndex(disk->dst);
if (idx < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk type '%s'"), disk->dst);
goto error;
}
switch (disk->bus) {
case VIR_DOMAIN_DISK_BUS_IDE:
virBufferAddLit(&opt, "ide-drive");
virBufferAsprintf(&opt, ",bus=ide.%d,unit=%d",
disk->info.addr.drive.bus,
disk->info.addr.drive.unit);
break;
case VIR_DOMAIN_DISK_BUS_SCSI:
virBufferAddLit(&opt, "scsi-disk");
virBufferAsprintf(&opt, ",bus=scsi%d.%d,scsi-id=%d",
disk->info.addr.drive.controller,
disk->info.addr.drive.bus,
disk->info.addr.drive.unit);
break;
case VIR_DOMAIN_DISK_BUS_VIRTIO:
virBufferAddLit(&opt, "virtio-blk-pci");
qemuBuildDeviceAddressStr(&opt, &disk->info, qemuCaps);
break;
case VIR_DOMAIN_DISK_BUS_USB:
virBufferAddLit(&opt, "usb-storage");
break;
default:
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk bus '%s' with device setup"), bus);
goto error;
}
virBufferAsprintf(&opt, ",drive=%s%s", QEMU_DRIVE_HOST_PREFIX, disk->info.alias);
virBufferAsprintf(&opt, ",id=%s", disk->info.alias);
if (disk->bootIndex && qemuCapsGet(qemuCaps, QEMU_CAPS_BOOTINDEX))
virBufferAsprintf(&opt, ",bootindex=%d", disk->bootIndex);
if (virBufferError(&opt)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&opt);
error:
virBufferFreeAndReset(&opt);
return NULL;
}
char *qemuBuildFSStr(virDomainFSDefPtr fs,
virBitmapPtr qemuCaps ATTRIBUTE_UNUSED)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
if (fs->type != VIR_DOMAIN_FS_TYPE_MOUNT) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only supports mount filesystem type"));
goto error;
}
virBufferAddLit(&opt, "local");
if (fs->accessmode == VIR_DOMAIN_FS_ACCESSMODE_MAPPED) {
virBufferAddLit(&opt, ",security_model=mapped");
} else if(fs->accessmode == VIR_DOMAIN_FS_ACCESSMODE_PASSTHROUGH) {
virBufferAddLit(&opt, ",security_model=passthrough");
} else if(fs->accessmode == VIR_DOMAIN_FS_ACCESSMODE_SQUASH) {
virBufferAddLit(&opt, ",security_model=none");
}
virBufferAsprintf(&opt, ",id=%s%s", QEMU_FSDEV_HOST_PREFIX, fs->info.alias);
virBufferAsprintf(&opt, ",path=%s", fs->src);
if (virBufferError(&opt)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&opt);
error:
virBufferFreeAndReset(&opt);
return NULL;
}
char *
qemuBuildFSDevStr(virDomainFSDefPtr fs,
virBitmapPtr qemuCaps)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
if (fs->type != VIR_DOMAIN_FS_TYPE_MOUNT) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("can only passthrough directories"));
goto error;
}
virBufferAddLit(&opt, "virtio-9p-pci");
virBufferAsprintf(&opt, ",id=%s", fs->info.alias);
virBufferAsprintf(&opt, ",fsdev=%s%s", QEMU_FSDEV_HOST_PREFIX, fs->info.alias);
virBufferAsprintf(&opt, ",mount_tag=%s", fs->dst);
qemuBuildDeviceAddressStr(&opt, &fs->info, qemuCaps);
if (virBufferError(&opt)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&opt);
error:
virBufferFreeAndReset(&opt);
return NULL;
}
char *
qemuBuildControllerDevStr(virDomainControllerDefPtr def,
virBitmapPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
switch (def->type) {
case VIR_DOMAIN_CONTROLLER_TYPE_SCSI:
virBufferAddLit(&buf, "lsi");
virBufferAsprintf(&buf, ",id=scsi%d", def->idx);
break;
case VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL:
if (def->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
virBufferAddLit(&buf, "virtio-serial-pci");
} else {
virBufferAddLit(&buf, "virtio-serial");
}
virBufferAsprintf(&buf, ",id=" QEMU_VIRTIO_SERIAL_PREFIX "%d",
def->idx);
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);
}
break;
case VIR_DOMAIN_CONTROLLER_TYPE_CCID:
virBufferAsprintf(&buf, "usb-ccid,id=ccid%d", def->idx);
break;
/* We always get an IDE controller, whether we want it or not. */
case VIR_DOMAIN_CONTROLLER_TYPE_IDE:
default:
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Unknown controller type: %s"),
virDomainControllerTypeToString(def->type));
goto error;
}
if (qemuBuildDeviceAddressStr(&buf, &def->info, qemuCaps) < 0)
goto error;
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildNicStr(virDomainNetDefPtr net,
const char *prefix,
int vlan)
{
char *str;
if (virAsprintf(&str,
"%smacaddr=%02x:%02x:%02x:%02x:%02x:%02x,vlan=%d%s%s%s%s",
prefix ? prefix : "",
net->mac[0], net->mac[1],
net->mac[2], net->mac[3],
net->mac[4], net->mac[5],
vlan,
(net->model ? ",model=" : ""),
(net->model ? net->model : ""),
(net->info.alias ? ",name=" : ""),
(net->info.alias ? net->info.alias : "")) < 0) {
virReportOOMError();
return NULL;
}
return str;
}
char *
qemuBuildNicDevStr(virDomainNetDefPtr net,
int vlan,
virBitmapPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *nic;
bool usingVirtio = false;
if (!net->model) {
nic = "rtl8139";
} else if (STREQ(net->model, "virtio")) {
nic = "virtio-net-pci";
usingVirtio = true;
} else {
nic = net->model;
}
virBufferAdd(&buf, nic, strlen(nic));
if (usingVirtio && net->driver.virtio.txmode) {
if (qemuCapsGet(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;
default:
/* this should never happen, if it does, we need
* to add another case to this switch.
*/
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unrecognized virtio-net-pci 'tx' option"));
goto error;
}
} else {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtio-net-pci 'tx' option not supported in this QEMU binary"));
goto error;
}
}
if (vlan == -1)
virBufferAsprintf(&buf, ",netdev=host%s", net->info.alias);
else
virBufferAsprintf(&buf, ",vlan=%d", vlan);
virBufferAsprintf(&buf, ",id=%s", net->info.alias);
virBufferAsprintf(&buf, ",mac=%02x:%02x:%02x:%02x:%02x:%02x",
net->mac[0], net->mac[1],
net->mac[2], net->mac[3],
net->mac[4], net->mac[5]);
if (qemuBuildDeviceAddressStr(&buf, &net->info, qemuCaps) < 0)
goto error;
if (net->bootIndex && qemuCapsGet(qemuCaps, QEMU_CAPS_BOOTINDEX))
virBufferAsprintf(&buf, ",bootindex=%d", net->bootIndex);
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildHostNetStr(virDomainNetDefPtr net,
char type_sep,
int vlan,
const char *tapfd,
const char *vhostfd)
{
bool is_tap = false;
virBuffer buf = VIR_BUFFER_INITIALIZER;
switch (net->type) {
case VIR_DOMAIN_NET_TYPE_NETWORK:
case VIR_DOMAIN_NET_TYPE_BRIDGE:
case VIR_DOMAIN_NET_TYPE_DIRECT:
virBufferAddLit(&buf, "tap");
virBufferAsprintf(&buf, "%cfd=%s", type_sep, tapfd);
type_sep = ',';
is_tap = true;
break;
case VIR_DOMAIN_NET_TYPE_ETHERNET:
virBufferAddLit(&buf, "tap");
if (net->ifname) {
virBufferAsprintf(&buf, "%cifname=%s", type_sep, net->ifname);
type_sep = ',';
}
if (net->data.ethernet.script) {
virBufferAsprintf(&buf, "%cscript=%s", type_sep,
net->data.ethernet.script);
type_sep = ',';
}
is_tap = true;
break;
case VIR_DOMAIN_NET_TYPE_CLIENT:
case VIR_DOMAIN_NET_TYPE_SERVER:
case VIR_DOMAIN_NET_TYPE_MCAST:
virBufferAddLit(&buf, "socket");
switch (net->type) {
case VIR_DOMAIN_NET_TYPE_CLIENT:
virBufferAsprintf(&buf, "%cconnect=%s:%d",
type_sep,
net->data.socket.address,
net->data.socket.port);
break;
case VIR_DOMAIN_NET_TYPE_SERVER:
virBufferAsprintf(&buf, "%clisten=%s:%d",
type_sep,
net->data.socket.address,
net->data.socket.port);
break;
case VIR_DOMAIN_NET_TYPE_MCAST:
virBufferAsprintf(&buf, "%cmcast=%s:%d",
type_sep,
net->data.socket.address,
net->data.socket.port);
break;
case VIR_DOMAIN_NET_TYPE_USER:
case VIR_DOMAIN_NET_TYPE_ETHERNET:
case VIR_DOMAIN_NET_TYPE_NETWORK:
case VIR_DOMAIN_NET_TYPE_BRIDGE:
case VIR_DOMAIN_NET_TYPE_INTERNAL:
case VIR_DOMAIN_NET_TYPE_DIRECT:
case VIR_DOMAIN_NET_TYPE_LAST:
break;
}
type_sep = ',';
break;
case VIR_DOMAIN_NET_TYPE_USER:
default:
virBufferAddLit(&buf, "user");
break;
}
if (vlan >= 0) {
virBufferAsprintf(&buf, "%cvlan=%d", type_sep, vlan);
if (net->info.alias)
virBufferAsprintf(&buf, ",name=host%s",
net->info.alias);
} else {
virBufferAsprintf(&buf, "%cid=host%s",
type_sep, net->info.alias);
}
if (is_tap) {
if (vhostfd && *vhostfd)
virBufferAsprintf(&buf, ",vhost=on,vhostfd=%s", vhostfd);
if (net->tune.sndbuf_specified)
virBufferAsprintf(&buf, ",sndbuf=%lu", net->tune.sndbuf);
}
if (virBufferError(&buf)) {
virBufferFreeAndReset(&buf);
virReportOOMError();
return NULL;
}
return virBufferContentAndReset(&buf);
}
char *
qemuBuildWatchdogDevStr(virDomainWatchdogDefPtr dev,
virBitmapPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *model = virDomainWatchdogModelTypeToString(dev->model);
if (!model) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing watchdog model"));
goto error;
}
virBufferAsprintf(&buf, "%s,id=%s", model, dev->info.alias);
if (qemuBuildDeviceAddressStr(&buf, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildMemballoonDevStr(virDomainMemballoonDefPtr dev,
virBitmapPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virBufferAddLit(&buf, "virtio-balloon-pci");
virBufferAsprintf(&buf, ",id=%s", dev->info.alias);
if (qemuBuildDeviceAddressStr(&buf, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildUSBInputDevStr(virDomainInputDefPtr dev)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virBufferAsprintf(&buf, "%s,id=%s",
dev->type == VIR_DOMAIN_INPUT_TYPE_MOUSE ?
"usb-mouse" : "usb-tablet", dev->info.alias);
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildSoundDevStr(virDomainSoundDefPtr sound,
virBitmapPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *model = virDomainSoundModelTypeToString(sound->model);
if (!model) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("invalid sound model"));
goto error;
}
/* Hack for weirdly unusual devices name in QEMU */
if (STREQ(model, "es1370"))
model = "ES1370";
else if (STREQ(model, "ac97"))
model = "AC97";
else if (STREQ(model, "ich6"))
model = "intel-hda";
virBufferAsprintf(&buf, "%s,id=%s", model, sound->info.alias);
if (qemuBuildDeviceAddressStr(&buf, &sound->info, qemuCaps) < 0)
goto error;
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildSoundCodecStr(virDomainSoundDefPtr sound,
const char *codec)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
int cad = 0;
virBufferAsprintf(&buf, "%s,id=%s-codec%d,bus=%s.0,cad=%d",
codec, sound->info.alias, cad, sound->info.alias, cad);
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildVideoDevStr(virDomainVideoDefPtr video,
virBitmapPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *model = qemuVideoTypeToString(video->type);
if (!model) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("invalid video model"));
goto error;
}
virBufferAsprintf(&buf, "%s,id=%s", model, video->info.alias);
if (video->type == VIR_DOMAIN_VIDEO_TYPE_QXL) {
if (video->vram > (UINT_MAX / 1024)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("value for 'vram' must be less than '%u'"),
UINT_MAX / 1024);
goto error;
}
/* QEMU accepts bytes for vram_size. */
virBufferAsprintf(&buf, ",vram_size=%u", video->vram * 1024);
}
if (qemuBuildDeviceAddressStr(&buf, &video->info, qemuCaps) < 0)
goto error;
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
int
qemuOpenPCIConfig(virDomainHostdevDefPtr dev)
{
char *path = NULL;
int configfd = -1;
if (virAsprintf(&path, "/sys/bus/pci/devices/%04x:%02x:%02x.%01x/config",
dev->source.subsys.u.pci.domain,
dev->source.subsys.u.pci.bus,
dev->source.subsys.u.pci.slot,
dev->source.subsys.u.pci.function) < 0) {
virReportOOMError();
return -1;
}
configfd = open(path, O_RDWR, 0);
if (configfd < 0)
virReportSystemError(errno, _("Failed opening %s"), path);
VIR_FREE(path);
return configfd;
}
char *
qemuBuildPCIHostdevDevStr(virDomainHostdevDefPtr dev, const char *configfd,
virBitmapPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virBufferAddLit(&buf, "pci-assign");
virBufferAsprintf(&buf, ",host=%.2x:%.2x.%.1x",
dev->source.subsys.u.pci.bus,
dev->source.subsys.u.pci.slot,
dev->source.subsys.u.pci.function);
virBufferAsprintf(&buf, ",id=%s", dev->info.alias);
if (configfd && *configfd)
virBufferAsprintf(&buf, ",configfd=%s", configfd);
if (dev->bootIndex)
virBufferAsprintf(&buf, ",bootindex=%d", dev->bootIndex);
if (qemuBuildDeviceAddressStr(&buf, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildPCIHostdevPCIDevStr(virDomainHostdevDefPtr dev)
{
char *ret = NULL;
if (virAsprintf(&ret, "host=%.2x:%.2x.%.1x",
dev->source.subsys.u.pci.bus,
dev->source.subsys.u.pci.slot,
dev->source.subsys.u.pci.function) < 0)
virReportOOMError();
return ret;
}
char *
qemuBuildUSBHostdevDevStr(virDomainHostdevDefPtr dev)
{
char *ret = NULL;
if (!dev->source.subsys.u.usb.bus &&
!dev->source.subsys.u.usb.device) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("USB host device is missing bus/device information"));
return NULL;
}
if (virAsprintf(&ret, "usb-host,hostbus=%d,hostaddr=%d,id=%s",
dev->source.subsys.u.usb.bus,
dev->source.subsys.u.usb.device,
dev->info.alias) < 0)
virReportOOMError();
return ret;
}
char *
qemuBuildUSBHostdevUsbDevStr(virDomainHostdevDefPtr dev)
{
char *ret = NULL;
if (!dev->source.subsys.u.usb.bus &&
!dev->source.subsys.u.usb.device) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("USB host device is missing bus/device information"));
return NULL;
}
if (virAsprintf(&ret, "host:%d.%d",
dev->source.subsys.u.usb.bus,
dev->source.subsys.u.usb.device) < 0)
virReportOOMError();
return ret;
}
/* This function outputs a -chardev command line option which describes only the
* host side of the character device */
static char *
qemuBuildChrChardevStr(virDomainChrSourceDefPtr dev, const char *alias,
virBitmapPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
bool telnet;
switch(dev->type) {
case VIR_DOMAIN_CHR_TYPE_NULL:
virBufferAsprintf(&buf, "null,id=char%s", alias);
break;
case VIR_DOMAIN_CHR_TYPE_VC:
virBufferAsprintf(&buf, "vc,id=char%s", alias);
break;
case VIR_DOMAIN_CHR_TYPE_PTY:
virBufferAsprintf(&buf, "pty,id=char%s", alias);
break;
case VIR_DOMAIN_CHR_TYPE_DEV:
virBufferAsprintf(&buf, "tty,id=char%s,path=%s", alias,
dev->data.file.path);
break;
case VIR_DOMAIN_CHR_TYPE_FILE:
virBufferAsprintf(&buf, "file,id=char%s,path=%s", alias,
dev->data.file.path);
break;
case VIR_DOMAIN_CHR_TYPE_PIPE:
virBufferAsprintf(&buf, "pipe,id=char%s,path=%s", alias,
dev->data.file.path);
break;
case VIR_DOMAIN_CHR_TYPE_STDIO:
virBufferAsprintf(&buf, "stdio,id=char%s", alias);
break;
case VIR_DOMAIN_CHR_TYPE_UDP:
virBufferAsprintf(&buf,
"udp,id=char%s,host=%s,port=%s,localaddr=%s,"
"localport=%s",
alias,
dev->data.udp.connectHost,
dev->data.udp.connectService,
dev->data.udp.bindHost,
dev->data.udp.bindService);
break;
case VIR_DOMAIN_CHR_TYPE_TCP:
telnet = dev->data.tcp.protocol == VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET;
virBufferAsprintf(&buf,
"socket,id=char%s,host=%s,port=%s%s%s",
alias,
dev->data.tcp.host,
dev->data.tcp.service,
telnet ? ",telnet" : "",
dev->data.tcp.listen ? ",server,nowait" : "");
break;
case VIR_DOMAIN_CHR_TYPE_UNIX:
virBufferAsprintf(&buf,
"socket,id=char%s,path=%s%s",
alias,
dev->data.nix.path,
dev->data.nix.listen ? ",server,nowait" : "");
break;
case VIR_DOMAIN_CHR_TYPE_SPICEVMC:
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_SPICEVMC)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("spicevmc not supported in this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "spicevmc,id=char%s,name=%s", alias,
virDomainChrSpicevmcTypeToString(dev->data.spicevmc));
break;
default:
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported chardev '%s'"),
virDomainChrTypeToString(dev->type));
goto error;
}
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildChrArgStr(virDomainChrSourceDefPtr dev, const char *prefix)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (prefix)
virBufferAdd(&buf, prefix, strlen(prefix));
switch (dev->type) {
case VIR_DOMAIN_CHR_TYPE_NULL:
virBufferAddLit(&buf, "null");
break;
case VIR_DOMAIN_CHR_TYPE_VC:
virBufferAddLit(&buf, "vc");
break;
case VIR_DOMAIN_CHR_TYPE_PTY:
virBufferAddLit(&buf, "pty");
break;
case VIR_DOMAIN_CHR_TYPE_DEV:
virBufferStrcat(&buf, dev->data.file.path, NULL);
break;
case VIR_DOMAIN_CHR_TYPE_FILE:
virBufferAsprintf(&buf, "file:%s", dev->data.file.path);
break;
case VIR_DOMAIN_CHR_TYPE_PIPE:
virBufferAsprintf(&buf, "pipe:%s", dev->data.file.path);
break;
case VIR_DOMAIN_CHR_TYPE_STDIO:
virBufferAddLit(&buf, "stdio");
break;
case VIR_DOMAIN_CHR_TYPE_UDP:
virBufferAsprintf(&buf, "udp:%s:%s@%s:%s",
dev->data.udp.connectHost,
dev->data.udp.connectService,
dev->data.udp.bindHost,
dev->data.udp.bindService);
break;
case VIR_DOMAIN_CHR_TYPE_TCP:
if (dev->data.tcp.protocol == VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET) {
virBufferAsprintf(&buf, "telnet:%s:%s%s",
dev->data.tcp.host,
dev->data.tcp.service,
dev->data.tcp.listen ? ",server,nowait" : "");
} else {
virBufferAsprintf(&buf, "tcp:%s:%s%s",
dev->data.tcp.host,
dev->data.tcp.service,
dev->data.tcp.listen ? ",server,nowait" : "");
}
break;
case VIR_DOMAIN_CHR_TYPE_UNIX:
virBufferAsprintf(&buf, "unix:%s%s",
dev->data.nix.path,
dev->data.nix.listen ? ",server,nowait" : "");
break;
}
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildVirtioSerialPortDevStr(virDomainChrDefPtr dev,
virBitmapPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (dev->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE)
virBufferAddLit(&buf, "virtconsole");
else if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE_SPICEVMC) &&
dev->source.type == VIR_DOMAIN_CHR_TYPE_SPICEVMC)
virBufferAddLit(&buf, "spicevmc");
else
virBufferAddLit(&buf, "virtserialport");
if (dev->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
/* Check it's a virtio-serial address */
if (dev->info.type !=
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_SERIAL)
{
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("virtio serial device has invalid address type"));
goto error;
}
virBufferAsprintf(&buf,
",bus=" QEMU_VIRTIO_SERIAL_PREFIX "%d.%d",
dev->info.addr.vioserial.controller,
dev->info.addr.vioserial.bus);
virBufferAsprintf(&buf,
",nr=%d",
dev->info.addr.vioserial.port);
}
if (dev->source.type == VIR_DOMAIN_CHR_TYPE_SPICEVMC &&
dev->target.name &&
STRNEQ(dev->target.name, "com.redhat.spice.0")) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Unsupported spicevmc target name '%s'"),
dev->target.name);
goto error;
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE_SPICEVMC) &&
dev->source.type == VIR_DOMAIN_CHR_TYPE_SPICEVMC) {
virBufferAsprintf(&buf, ",id=%s", dev->info.alias);
} else {
virBufferAsprintf(&buf, ",chardev=char%s,id=%s",
dev->info.alias, dev->info.alias);
if (dev->target.name) {
virBufferAsprintf(&buf, ",name=%s", dev->target.name);
}
}
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *qemuBuildSmbiosBiosStr(virSysinfoDefPtr def)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if ((def->bios_vendor == NULL) && (def->bios_version == NULL) &&
(def->bios_date == NULL) && (def->bios_release == NULL))
return(NULL);
virBufferAddLit(&buf, "type=0");
/* 0:Vendor */
if (def->bios_vendor)
virBufferAsprintf(&buf, ",vendor=%s", def->bios_vendor);
/* 0:BIOS Version */
if (def->bios_version)
virBufferAsprintf(&buf, ",version=%s", def->bios_version);
/* 0:BIOS Release Date */
if (def->bios_date)
virBufferAsprintf(&buf, ",date=%s", def->bios_date);
/* 0:System BIOS Major Release and 0:System BIOS Minor Release */
if (def->bios_release)
virBufferAsprintf(&buf, ",release=%s", def->bios_release);
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return(NULL);
}
static char *qemuBuildSmbiosSystemStr(virSysinfoDefPtr def, bool skip_uuid)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if ((def->system_manufacturer == NULL) && (def->system_sku == NULL) &&
(def->system_product == NULL) && (def->system_version == NULL) &&
(def->system_serial == NULL) && (def->system_family == NULL) &&
(def->system_uuid == NULL || skip_uuid))
return NULL;
virBufferAddLit(&buf, "type=1");
/* 1:Manufacturer */
if (def->system_manufacturer)
virBufferAsprintf(&buf, ",manufacturer=%s",
def->system_manufacturer);
/* 1:Product Name */
if (def->system_product)
virBufferAsprintf(&buf, ",product=%s", def->system_product);
/* 1:Version */
if (def->system_version)
virBufferAsprintf(&buf, ",version=%s", def->system_version);
/* 1:Serial Number */
if (def->system_serial)
virBufferAsprintf(&buf, ",serial=%s", def->system_serial);
/* 1:UUID */
if (def->system_uuid && !skip_uuid)
virBufferAsprintf(&buf, ",uuid=%s", def->system_uuid);
/* 1:SKU Number */
if (def->system_sku)
virBufferAsprintf(&buf, ",sku=%s", def->system_sku);
/* 1:Family */
if (def->system_family)
virBufferAsprintf(&buf, ",family=%s", def->system_family);
if (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return(NULL);
}
static char *
qemuBuildClockArgStr(virDomainClockDefPtr def)
{
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;
now += def->data.adjustment;
gmtime_r(&now, &nowbits);
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:
qemuReportError(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= */
int i;
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:
qemuReportError(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:
qemuReportError(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 (virBufferError(&buf)) {
virReportOOMError();
goto error;
}
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildCpuArgStr(const struct qemud_driver *driver,
const virDomainDefPtr def,
const char *emulator,
virBitmapPtr qemuCaps,
const struct utsname *ut,
char **opt,
bool *hasHwVirt)
{
const virCPUDefPtr host = driver->caps->host.cpu;
virCPUDefPtr guest = NULL;
unsigned int ncpus = 0;
const char **cpus = NULL;
union cpuData *data = NULL;
int ret = -1;
virBuffer buf = VIR_BUFFER_INITIALIZER;
int i;
*hasHwVirt = false;
if (def->cpu && def->cpu->model) {
if (host &&
qemuCapsProbeCPUModels(emulator, qemuCaps, host->arch,
&ncpus, &cpus) < 0)
goto cleanup;
if (!ncpus || !host) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("CPU specification not supported by hypervisor"));
goto cleanup;
}
}
if (ncpus > 0 && host) {
virCPUCompareResult cmp;
const char *preferred;
int hasSVM;
cmp = cpuGuestData(host, def->cpu, &data);
switch (cmp) {
case VIR_CPU_COMPARE_INCOMPATIBLE:
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("guest CPU is not compatible with host CPU"));
/* fall through */
case VIR_CPU_COMPARE_ERROR:
goto cleanup;
default:
break;
}
if (VIR_ALLOC(guest) < 0 || !(guest->arch = strdup(host->arch)))
goto no_memory;
if (def->cpu->match == VIR_CPU_MATCH_MINIMUM)
preferred = host->model;
else
preferred = def->cpu->model;
guest->type = VIR_CPU_TYPE_GUEST;
if (cpuDecode(guest, data, cpus, ncpus, preferred) < 0)
goto cleanup;
/* Only 'svm' requires --enable-nesting. The nested
* 'vmx' patches now simply hook off the CPU features
*/
hasSVM = cpuHasFeature(guest->arch, data, "svm");
if (hasSVM < 0)
goto cleanup;
*hasHwVirt = hasSVM > 0 ? true : false;
virBufferAdd(&buf, guest->model, -1);
for (i = 0; i < guest->nfeatures; i++) {
char sign;
if (guest->features[i].policy == VIR_CPU_FEATURE_DISABLE)
sign = '-';
else
sign = '+';
virBufferAsprintf(&buf, ",%c%s", sign, guest->features[i].name);
}
}
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 (STREQ(def->os.arch, "i686") &&
((STREQ(ut->machine, "x86_64") &&
strstr(emulator, "kvm")) ||
strstr(emulator, "x86_64")))
virBufferAddLit(&buf, "qemu32");
}
if (virBufferError(&buf))
goto no_memory;
*opt = virBufferContentAndReset(&buf);
ret = 0;
cleanup:
if (guest)
cpuDataFree(guest->arch, data);
virCPUDefFree(guest);
if (cpus) {
for (i = 0; i < ncpus; i++)
VIR_FREE(cpus[i]);
VIR_FREE(cpus);
}
return ret;
no_memory:
virReportOOMError();
goto cleanup;
}
static char *
qemuBuildSmpArgStr(const virDomainDefPtr def,
virBitmapPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virBufferAsprintf(&buf, "%u", def->vcpus);
if (qemuCapsGet(qemuCaps, QEMU_CAPS_SMP_TOPOLOGY)) {
if (def->vcpus != def->maxvcpus)
virBufferAsprintf(&buf, ",maxcpus=%u", def->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", def->maxvcpus);
virBufferAsprintf(&buf, ",cores=%u", 1);
virBufferAsprintf(&buf, ",threads=%u", 1);
}
} else if (def->vcpus != def->maxvcpus) {
virBufferFreeAndReset(&buf);
/* FIXME - consider hot-unplugging cpus after boot for older qemu */
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("setting current vcpu count less than maximum is "
"not supported with this QEMU binary"));
return NULL;
}
if (virBufferError(&buf)) {
virBufferFreeAndReset(&buf);
virReportOOMError();
return NULL;
}
return virBufferContentAndReset(&buf);
}
/*
* Constructs a argv suitable for launching qemu with config defined
* for a given virtual machine.
*
* XXX 'conn' is only required to resolve network -> bridge name
* figure out how to remove this requirement some day
*/
virCommandPtr
qemuBuildCommandLine(virConnectPtr conn,
struct qemud_driver *driver,
virDomainDefPtr def,
virDomainChrSourceDefPtr monitor_chr,
bool monitor_json,
virBitmapPtr qemuCaps,
const char *migrateFrom,
int migrateFd,
virDomainSnapshotObjPtr current_snapshot,
enum virVMOperationType vmop)
{
int i;
char boot[VIR_DOMAIN_BOOT_LAST+1];
struct utsname ut;
int disableKQEMU = 0;
int enableKQEMU = 0;
int disableKVM = 0;
int enableKVM = 0;
const char *emulator;
char uuid[VIR_UUID_STRING_BUFLEN];
char *cpu;
char *smp;
int last_good_net = -1;
bool hasHwVirt = false;
virCommandPtr cmd;
bool has_rbd_hosts = false;
virBuffer rbd_hosts = VIR_BUFFER_INITIALIZER;
uname_normalize(&ut);
if (qemuAssignDeviceAliases(def, qemuCaps) < 0)
return NULL;
virUUIDFormat(def->uuid, uuid);
emulator = def->emulator;
/*
* do not use boot=on for drives when not using KVM since this
* is not supported at all in upstream QEmu.
*/
if (qemuCapsGet(qemuCaps, QEMU_CAPS_KVM) &&
(def->virtType == VIR_DOMAIN_VIRT_QEMU))
qemuCapsClear(qemuCaps, QEMU_CAPS_DRIVE_BOOT);
switch (def->virtType) {
case VIR_DOMAIN_VIRT_QEMU:
if (qemuCapsGet(qemuCaps, QEMU_CAPS_KQEMU))
disableKQEMU = 1;
if (qemuCapsGet(qemuCaps, QEMU_CAPS_KVM))
disableKVM = 1;
break;
case VIR_DOMAIN_VIRT_KQEMU:
if (qemuCapsGet(qemuCaps, QEMU_CAPS_KVM))
disableKVM = 1;
if (qemuCapsGet(qemuCaps, QEMU_CAPS_ENABLE_KQEMU)) {
enableKQEMU = 1;
} else if (!qemuCapsGet(qemuCaps, QEMU_CAPS_KQEMU)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("the QEMU binary %s does not support kqemu"),
emulator);
}
break;
case VIR_DOMAIN_VIRT_KVM:
if (qemuCapsGet(qemuCaps, QEMU_CAPS_KQEMU))
disableKQEMU = 1;
if (qemuCapsGet(qemuCaps, QEMU_CAPS_ENABLE_KVM)) {
enableKVM = 1;
} else if (!qemuCapsGet(qemuCaps, QEMU_CAPS_KVM)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("the QEMU binary %s does not support kvm"),
emulator);
}
break;
case VIR_DOMAIN_VIRT_XEN:
/* XXX better check for xenner */
break;
default:
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("the QEMU binary %s does not support %s"),
emulator, virDomainVirtTypeToString(def->virtType));
break;
}
cmd = virCommandNewArgList(emulator, "-S", NULL);
virCommandAddEnvPassCommon(cmd);
/* 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)
virCommandAddArgList(cmd, "-M", def->os.machine, NULL);
if (qemuBuildCpuArgStr(driver, def, emulator, qemuCaps,
&ut, &cpu, &hasHwVirt) < 0)
goto error;
if (cpu) {
virCommandAddArgList(cmd, "-cpu", cpu, NULL);
VIR_FREE(cpu);
if (qemuCapsGet(qemuCaps, QEMU_CAPS_NESTING) &&
hasHwVirt)
virCommandAddArg(cmd, "-enable-nesting");
}
if (disableKQEMU)
virCommandAddArg(cmd, "-no-kqemu");
else if (enableKQEMU)
virCommandAddArgList(cmd, "-enable-kqemu", "-kernel-kqemu", NULL);
if (disableKVM)
virCommandAddArg(cmd, "-no-kvm");
if (enableKVM)
virCommandAddArg(cmd, "-enable-kvm");
/* Set '-m MB' based on maxmem, because the lower 'memory' limit
* is set post-startup using the balloon driver. If balloon driver
* is not supported, then they're out of luck anyway
*/
virCommandAddArg(cmd, "-m");
virCommandAddArgFormat(cmd, "%lu", VIR_DIV_UP(def->mem.max_balloon, 1024));
if (def->mem.hugepage_backed) {
if (!driver->hugetlbfs_mount) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("hugetlbfs filesystem is not mounted"));
goto error;
}
if (!driver->hugepage_path) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("hugepages are disabled by administrator config"));
goto error;
}
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_MEM_PATH)) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("hugepage backing not supported by '%s'"),
def->emulator);
goto error;
}
virCommandAddArgList(cmd, "-mem-prealloc", "-mem-path",
driver->hugepage_path, NULL);
}
virCommandAddArg(cmd, "-smp");
if (!(smp = qemuBuildSmpArgStr(def, qemuCaps)))
goto error;
virCommandAddArg(cmd, smp);
VIR_FREE(smp);
if (qemuCapsGet(qemuCaps, QEMU_CAPS_NAME)) {
virCommandAddArg(cmd, "-name");
if (driver->setProcessName &&
qemuCapsGet(qemuCaps, QEMU_CAPS_NAME_PROCESS)) {
virCommandAddArgFormat(cmd, "%s,process=qemu:%s",
def->name, def->name);
} else {
virCommandAddArg(cmd, def->name);
}
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_UUID))
virCommandAddArgList(cmd, "-uuid", uuid, NULL);
if (def->virtType == VIR_DOMAIN_VIRT_XEN ||
STREQ(def->os.type, "xen") ||
STREQ(def->os.type, "linux")) {
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DOMID)) {
virCommandAddArg(cmd, "-domid");
virCommandAddArgFormat(cmd, "%d", def->id);
} else if (qemuCapsGet(qemuCaps, QEMU_CAPS_XEN_DOMID)) {
virCommandAddArg(cmd, "-xen-attach");
virCommandAddArg(cmd, "-xen-domid");
virCommandAddArgFormat(cmd, "%d", def->id);
} else {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("qemu emulator '%s' does not support xen"),
def->emulator);
goto error;
}
}
if ((def->os.smbios_mode != VIR_DOMAIN_SMBIOS_NONE) &&
(def->os.smbios_mode != VIR_DOMAIN_SMBIOS_EMULATE)) {
virSysinfoDefPtr source = NULL;
bool skip_uuid = false;
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_SMBIOS_TYPE)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("the QEMU binary %s does not support smbios settings"),
emulator);
goto error;
}
/* should we really error out or just warn in those cases ? */
if (def->os.smbios_mode == VIR_DOMAIN_SMBIOS_HOST) {
if (driver->hostsysinfo == NULL) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Host SMBIOS information is not available"));
goto error;
}
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) {
qemuReportError(VIR_ERR_XML_ERROR,
_("Domain '%s' sysinfo are not available"),
def->name);
goto error;
}
source = def->sysinfo;
/* domain_conf guaranteed that system_uuid matches guest uuid. */
}
if (source != NULL) {
char *smbioscmd;
smbioscmd = qemuBuildSmbiosBiosStr(source);
if (smbioscmd != NULL) {
virCommandAddArgList(cmd, "-smbios", smbioscmd, NULL);
VIR_FREE(smbioscmd);
}
smbioscmd = qemuBuildSmbiosSystemStr(source, skip_uuid);
if (smbioscmd != NULL) {
virCommandAddArgList(cmd, "-smbios", smbioscmd, NULL);
VIR_FREE(smbioscmd);
}
}
}
/*
* 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->graphics)
virCommandAddArg(cmd, "-nographic");
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
if (qemuCapsGet(qemuCaps, QEMU_CAPS_NODEFCONFIG))
virCommandAddArg(cmd,
"-nodefconfig"); /* Disable global config files */
virCommandAddArg(cmd,
"-nodefaults"); /* Disable default guest devices */
}
if (monitor_chr) {
char *chrdev;
/* Use -chardev if it's available */
if (qemuCapsGet(qemuCaps, QEMU_CAPS_CHARDEV)) {
virCommandAddArg(cmd, "-chardev");
if (!(chrdev = qemuBuildChrChardevStr(monitor_chr, "monitor",
qemuCaps)))
goto error;
virCommandAddArg(cmd, chrdev);
VIR_FREE(chrdev);
virCommandAddArg(cmd, "-mon");
virCommandAddArgFormat(cmd,
"chardev=charmonitor,id=monitor,mode=%s",
monitor_json ? "control" : "readline");
} else {
const char *prefix = NULL;
if (monitor_json)
prefix = "control,";
virCommandAddArg(cmd, "-monitor");
if (!(chrdev = qemuBuildChrArgStr(monitor_chr, prefix)))
goto error;
virCommandAddArg(cmd, chrdev);
VIR_FREE(chrdev);
}
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_RTC)) {
const char *rtcopt;
virCommandAddArg(cmd, "-rtc");
if (!(rtcopt = qemuBuildClockArgStr(&def->clock)))
goto error;
virCommandAddArg(cmd, rtcopt);
VIR_FREE(rtcopt);
} else {
switch (def->clock.offset) {
case VIR_DOMAIN_CLOCK_OFFSET_LOCALTIME:
case VIR_DOMAIN_CLOCK_OFFSET_TIMEZONE:
virCommandAddArg(cmd, "-localtime");
break;
case VIR_DOMAIN_CLOCK_OFFSET_UTC:
/* Nothing, its the default */
break;
default:
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported clock offset '%s'"),
virDomainClockOffsetTypeToString(def->clock.offset));
goto error;
}
}
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 (def->clock.timers[i]->name) {
default:
case VIR_DOMAIN_TIMER_NAME_PLATFORM:
case VIR_DOMAIN_TIMER_NAME_TSC:
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported timer type (name) '%s'"),
virDomainTimerNameTypeToString(def->clock.timers[i]->name));
goto error;
case VIR_DOMAIN_TIMER_NAME_RTC:
/* This has already been taken care of (in qemuBuildClockArgStr)
if QEMU_CAPS_RTC is set (mutually exclusive with
QEMUD_FLAG_RTC_TD_HACK) */
if (qemuCapsGet(qemuCaps, QEMU_CAPS_RTC_TD_HACK)) {
switch (def->clock.timers[i]->tickpolicy) {
case -1:
case VIR_DOMAIN_TIMER_TICKPOLICY_DELAY:
/* the default - do nothing */
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_CATCHUP:
virCommandAddArg(cmd, "-rtc-td-hack");
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_MERGE:
case VIR_DOMAIN_TIMER_TICKPOLICY_DISCARD:
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported rtc tickpolicy '%s'"),
virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
goto error;
}
} else if (!qemuCapsGet(qemuCaps, QEMU_CAPS_RTC)
&& (def->clock.timers[i]->tickpolicy
!= VIR_DOMAIN_TIMER_TICKPOLICY_DELAY)
&& (def->clock.timers[i]->tickpolicy != -1)) {
/* a non-default rtc policy was given, but there is no
way to implement it in this version of qemu */
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported rtc tickpolicy '%s'"),
virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
goto error;
}
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
(-no-kvm-pit), otherwise, the default is catchup. */
if (qemuCapsGet(qemuCaps, QEMU_CAPS_NO_KVM_PIT))
virCommandAddArg(cmd, "-no-kvm-pit-reinjection");
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_CATCHUP:
if (qemuCapsGet(qemuCaps, QEMU_CAPS_NO_KVM_PIT)) {
/* do nothing - this is default for kvm-pit */
} else if (qemuCapsGet(qemuCaps, QEMU_CAPS_TDF)) {
/* -tdf switches to 'catchup' with userspace pit. */
virCommandAddArg(cmd, "-tdf");
} else {
/* can't catchup if we have neither pit mode */
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported pit tickpolicy '%s'"),
virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
goto error;
}
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_MERGE:
case VIR_DOMAIN_TIMER_TICKPOLICY_DISCARD:
/* no way to support these modes for pit in qemu */
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported pit tickpolicy '%s'"),
virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
goto error;
}
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 (qemuCapsGet(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) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("pit timer is not supported"));
}
}
break;
}
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_NO_REBOOT) &&
def->onReboot != VIR_DOMAIN_LIFECYCLE_RESTART)
virCommandAddArg(cmd, "-no-reboot");
if (!(def->features & (1 << VIR_DOMAIN_FEATURE_ACPI)))
virCommandAddArg(cmd, "-no-acpi");
if (!def->os.bootloader) {
for (i = 0 ; i < def->os.nBootDevs ; i++) {
switch (def->os.bootDevs[i]) {
case VIR_DOMAIN_BOOT_CDROM:
boot[i] = 'd';
break;
case VIR_DOMAIN_BOOT_FLOPPY:
boot[i] = 'a';
break;
case VIR_DOMAIN_BOOT_DISK:
boot[i] = 'c';
break;
case VIR_DOMAIN_BOOT_NET:
boot[i] = 'n';
break;
default:
boot[i] = 'c';
break;
}
}
if (def->os.nBootDevs) {
virBuffer boot_buf = VIR_BUFFER_INITIALIZER;
virCommandAddArg(cmd, "-boot");
boot[def->os.nBootDevs] = '\0';
if (qemuCapsGet(qemuCaps, QEMU_CAPS_BOOT_MENU) &&
def->os.bootmenu != VIR_DOMAIN_BOOT_MENU_DEFAULT) {
if (def->os.bootmenu == VIR_DOMAIN_BOOT_MENU_ENABLED)
virBufferAsprintf(&boot_buf, "order=%s,menu=on", boot);
else if (def->os.bootmenu == VIR_DOMAIN_BOOT_MENU_DISABLED)
virBufferAsprintf(&boot_buf, "order=%s,menu=off", boot);
} else {
virBufferAdd(&boot_buf, boot, -1);
}
virCommandAddArgBuffer(cmd, &boot_buf);
} else if (!qemuCapsGet(qemuCaps, QEMU_CAPS_BOOTINDEX)) {
/* def->os.nBootDevs is guaranteed to be > 0 unless per-device boot
* configuration is used
*/
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("hypervisor lacks deviceboot feature"));
goto error;
}
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);
} else {
virCommandAddArgList(cmd, "-bootloader", def->os.bootloader, NULL);
}
for (i = 0 ; i < def->ndisks ; i++) {
virDomainDiskDefPtr disk = def->disks[i];
if (disk->driverName != NULL &&
!STREQ(disk->driverName, "qemu")) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported driver name '%s' for disk '%s'"),
disk->driverName, disk->src);
goto error;
}
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
for (i = 0 ; i < def->ncontrollers ; i++) {
virDomainControllerDefPtr cont = def->controllers[i];
/* We don't add an explicit IDE or FD controller because the
* provided PIIX4 device already includes one. It isn't possible to
* remove the PIIX4. */
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_IDE ||
cont->type == VIR_DOMAIN_CONTROLLER_TYPE_FDC)
continue;
/* QEMU doesn't implement a SATA driver */
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_SATA) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("SATA is not supported with this QEMU binary"));
goto error;
}
virCommandAddArg(cmd, "-device");
char *devstr;
if (!(devstr = qemuBuildControllerDevStr(def->controllers[i], qemuCaps)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
}
/* If QEMU supports -drive param instead of old -hda, -hdb, -cdrom .. */
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DRIVE)) {
int bootCD = 0, bootFloppy = 0, bootDisk = 0;
/* If QEMU supports boot=on for -drive param... */
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DRIVE_BOOT) &&
!def->os.kernel) {
for (i = 0 ; i < def->os.nBootDevs ; i++) {
switch (def->os.bootDevs[i]) {
case VIR_DOMAIN_BOOT_CDROM:
bootCD = 1;
break;
case VIR_DOMAIN_BOOT_FLOPPY:
bootFloppy = 1;
break;
case VIR_DOMAIN_BOOT_DISK:
bootDisk = 1;
break;
}
}
}
for (i = 0 ; i < def->ndisks ; i++) {
char *optstr;
int bootable = 0;
virDomainDiskDefPtr disk = def->disks[i];
int withDeviceArg = 0;
bool deviceFlagMasked = false;
int j;
/* Unless we have -device, then USB disks need special
handling */
if ((disk->bus == VIR_DOMAIN_DISK_BUS_USB) &&
!qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
if (disk->device == VIR_DOMAIN_DISK_DEVICE_DISK) {
virCommandAddArg(cmd, "-usbdevice");
virCommandAddArgFormat(cmd, "disk:%s", disk->src);
} else {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported usb disk type for '%s'"),
disk->src);
goto error;
}
continue;
}
switch (disk->device) {
case VIR_DOMAIN_DISK_DEVICE_CDROM:
bootable = bootCD;
bootCD = 0;
break;
case VIR_DOMAIN_DISK_DEVICE_FLOPPY:
bootable = bootFloppy;
bootFloppy = 0;
break;
case VIR_DOMAIN_DISK_DEVICE_DISK:
bootable = bootDisk;
bootDisk = 0;
break;
}
virCommandAddArg(cmd, "-drive");
/* Unfortunately it is not possible to use
-device for floppies, or Xen paravirt
devices. Fortunately, those don't need
static PCI addresses, so we don't really
care that we can't use -device */
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
if (disk->bus != VIR_DOMAIN_DISK_BUS_XEN) {
withDeviceArg = 1;
} else {
qemuCapsClear(qemuCaps, QEMU_CAPS_DEVICE);
deviceFlagMasked = true;
}
}
optstr = qemuBuildDriveStr(disk, bootable, qemuCaps);
if (deviceFlagMasked)
qemuCapsSet(qemuCaps, QEMU_CAPS_DEVICE);
if (!optstr)
goto error;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
if (disk->type == VIR_DOMAIN_DISK_TYPE_NETWORK &&
disk->protocol == VIR_DOMAIN_DISK_PROTOCOL_RBD) {
for (j = 0 ; j < disk->nhosts ; j++) {
if (!has_rbd_hosts) {
virBufferAddLit(&rbd_hosts, "CEPH_ARGS=-m ");
has_rbd_hosts = true;
} else {
virBufferAddLit(&rbd_hosts, ",");
}
virDomainDiskHostDefPtr host = &disk->hosts[j];
if (host->port) {
virBufferAsprintf(&rbd_hosts, "%s:%s",
host->name,
host->port);
} else {
virBufferAdd(&rbd_hosts, host->name, -1);
}
}
}
if (withDeviceArg) {
if (disk->bus == VIR_DOMAIN_DISK_BUS_FDC) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "isa-fdc.drive%c=drive-%s",
disk->info.addr.drive.unit
? 'B' : 'A',
disk->info.alias);
if (disk->bootIndex &&
qemuCapsGet(qemuCaps, QEMU_CAPS_BOOTINDEX)) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "isa-fdc.bootindex%c=%d",
disk->info.addr.drive.unit
? 'B' : 'A',
disk->bootIndex);
}
} else {
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildDriveDevStr(disk, qemuCaps)))
goto error;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
}
}
}
} else {
for (i = 0 ; i < def->ndisks ; i++) {
char dev[NAME_MAX];
char *file;
const char *fmt;
virDomainDiskDefPtr disk = def->disks[i];
int j;
if (disk->bus == VIR_DOMAIN_DISK_BUS_USB) {
if (disk->device == VIR_DOMAIN_DISK_DEVICE_DISK) {
virCommandAddArg(cmd, "-usbdevice");
virCommandAddArgFormat(cmd, "disk:%s", disk->src);
} else {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported usb disk type for '%s'"),
disk->src);
goto error;
}
continue;
}
if (STREQ(disk->dst, "hdc") &&
disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) {
if (disk->src) {
snprintf(dev, NAME_MAX, "-%s", "cdrom");
} else {
continue;
}
} else {
if (STRPREFIX(disk->dst, "hd") ||
STRPREFIX(disk->dst, "fd")) {
snprintf(dev, NAME_MAX, "-%s", disk->dst);
} else {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk type '%s'"), disk->dst);
goto error;
}
}
if (disk->type == VIR_DOMAIN_DISK_TYPE_DIR) {
/* QEMU only supports magic FAT format for now */
if (disk->driverType &&
STRNEQ(disk->driverType, "fat")) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk driver type for '%s'"),
disk->driverType);
goto error;
}
if (!disk->readonly) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cannot create virtual FAT disks in read-write mode"));
goto error;
}
if (disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY)
fmt = "fat:floppy:%s";
else
fmt = "fat:%s";
if (virAsprintf(&file, fmt, disk->src) < 0) {
goto no_memory;
}
} else if (disk->type == VIR_DOMAIN_DISK_TYPE_NETWORK) {
switch (disk->protocol) {
case VIR_DOMAIN_DISK_PROTOCOL_NBD:
if (disk->nhosts != 1) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("NBD accepts only one host"));
goto error;
}
if (virAsprintf(&file, "nbd:%s:%s,", disk->hosts->name,
disk->hosts->port) < 0) {
goto no_memory;
}
break;
case VIR_DOMAIN_DISK_PROTOCOL_RBD:
if (virAsprintf(&file, "rbd:%s,", disk->src) < 0) {
goto no_memory;
}
for (j = 0 ; j < disk->nhosts ; j++) {
if (!has_rbd_hosts) {
virBufferAddLit(&rbd_hosts, "CEPH_ARGS=-m ");
has_rbd_hosts = true;
} else {
virBufferAddLit(&rbd_hosts, ",");
}
virDomainDiskHostDefPtr host = &disk->hosts[j];
if (host->port) {
virBufferAsprintf(&rbd_hosts, "%s:%s",
host->name,
host->port);
} else {
virBufferAdd(&rbd_hosts, host->name, -1);
}
}
break;
case VIR_DOMAIN_DISK_PROTOCOL_SHEEPDOG:
if (disk->nhosts == 0) {
if (virAsprintf(&file, "sheepdog:%s,", disk->src) < 0) {
goto no_memory;
}
} else {
/* only one host is supported now */
if (virAsprintf(&file, "sheepdog:%s:%s:%s,",
disk->hosts->name, disk->hosts->port,
disk->src) < 0) {
goto no_memory;
}
}
break;
}
} else {
if (!(file = strdup(disk->src))) {
goto no_memory;
}
}
virCommandAddArgList(cmd, dev, file, NULL);
VIR_FREE(file);
}
}
if (has_rbd_hosts)
virCommandAddEnvBuffer(cmd, &rbd_hosts);
if (qemuCapsGet(qemuCaps, QEMU_CAPS_FSDEV)) {
for (i = 0 ; i < def->nfss ; i++) {
char *optstr;
virDomainFSDefPtr fs = def->fss[i];
virCommandAddArg(cmd, "-fsdev");
if (!(optstr = qemuBuildFSStr(fs, qemuCaps)))
goto error;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildFSDevStr(fs, qemuCaps)))
goto error;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
}
} else {
if (def->nfss) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("filesystem passthrough not supported by this QEMU"));
goto error;
}
}
if (!def->nnets) {
/* If we have -device, then we set -nodefault already */
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE))
virCommandAddArgList(cmd, "-net", "none", NULL);
} else {
for (i = 0 ; i < def->nnets ; i++) {
virDomainNetDefPtr net = def->nets[i];
char *nic, *host;
char tapfd_name[50];
char vhostfd_name[50] = "";
int vlan;
/* VLANs are not used with -netdev, so don't record them */
if (qemuCapsGet(qemuCaps, QEMU_CAPS_NETDEV) &&
qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE))
vlan = -1;
else
vlan = i;
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK ||
net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) {
int tapfd = qemuNetworkIfaceConnect(def, conn, driver, net,
qemuCaps);
if (tapfd < 0)
goto error;
last_good_net = i;
virCommandTransferFD(cmd, tapfd);
if (snprintf(tapfd_name, sizeof(tapfd_name), "%d",
tapfd) >= sizeof(tapfd_name))
goto no_memory;
} else if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) {
int tapfd = qemuPhysIfaceConnect(def, conn, driver, net,
qemuCaps, vmop);
if (tapfd < 0)
goto error;
last_good_net = i;
virCommandTransferFD(cmd, tapfd);
if (snprintf(tapfd_name, sizeof(tapfd_name), "%d",
tapfd) >= sizeof(tapfd_name))
goto no_memory;
}
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK ||
net->type == VIR_DOMAIN_NET_TYPE_BRIDGE ||
net->type == VIR_DOMAIN_NET_TYPE_DIRECT) {
/* Attempt to use vhost-net mode for these types of
network device */
int vhostfd;
if (qemuOpenVhostNet(def, net, qemuCaps, &vhostfd) < 0)
goto error;
if (vhostfd >= 0) {
virCommandTransferFD(cmd, vhostfd);
if (snprintf(vhostfd_name, sizeof(vhostfd_name), "%d",
vhostfd) >= sizeof(vhostfd_name))
goto no_memory;
}
}
/* Possible combinations:
*
* 1. Old way: -net nic,model=e1000,vlan=1 -net tap,vlan=1
* 2. Semi-new: -device e1000,vlan=1 -net tap,vlan=1
* 3. Best way: -netdev type=tap,id=netdev1 -device e1000,id=netdev1
*
* NB, no support for -netdev without use of -device
*/
if (qemuCapsGet(qemuCaps, QEMU_CAPS_NETDEV) &&
qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
virCommandAddArg(cmd, "-netdev");
if (!(host = qemuBuildHostNetStr(net, ',', vlan,
tapfd_name, vhostfd_name)))
goto error;
virCommandAddArg(cmd, host);
VIR_FREE(host);
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
virCommandAddArg(cmd, "-device");
if (!(nic = qemuBuildNicDevStr(net, vlan, qemuCaps)))
goto error;
virCommandAddArg(cmd, nic);
VIR_FREE(nic);
} else {
virCommandAddArg(cmd, "-net");
if (!(nic = qemuBuildNicStr(net, "nic,", vlan)))
goto error;
virCommandAddArg(cmd, nic);
VIR_FREE(nic);
}
if (!(qemuCapsGet(qemuCaps, QEMU_CAPS_NETDEV) &&
qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE))) {
virCommandAddArg(cmd, "-net");
if (!(host = qemuBuildHostNetStr(net, ',', vlan,
tapfd_name, vhostfd_name)))
goto error;
virCommandAddArg(cmd, host);
VIR_FREE(host);
}
}
}
if (def->nsmartcards) {
/* -device usb-ccid was already emitted along with other
* controllers. For now, qemu handles only one smartcard. */
virDomainSmartcardDefPtr smartcard = def->smartcards[0];
char *devstr;
virBuffer opt = VIR_BUFFER_INITIALIZER;
int j;
const char *database;
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) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks multiple smartcard "
"support"));
virBufferFreeAndReset(&opt);
goto error;
}
switch (smartcard->type) {
case VIR_DOMAIN_SMARTCARD_TYPE_HOST:
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_CHARDEV) ||
!qemuCapsGet(qemuCaps, QEMU_CAPS_CCID_EMULATED)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks smartcard host "
"mode support"));
goto error;
}
virBufferAddLit(&opt, "ccid-card-emulated,backend=nss-emulated");
break;
case VIR_DOMAIN_SMARTCARD_TYPE_HOST_CERTIFICATES:
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_CHARDEV) ||
!qemuCapsGet(qemuCaps, QEMU_CAPS_CCID_EMULATED)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks smartcard host "
"mode support"));
goto error;
}
virBufferAddLit(&opt, "ccid-card-emulated,backend=certificates");
for (j = 0; j < VIR_DOMAIN_SMARTCARD_NUM_CERTIFICATES; j++) {
if (strchr(smartcard->data.cert.file[j], ',')) {
virBufferFreeAndReset(&opt);
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("invalid certificate name: %s"),
smartcard->data.cert.file[j]);
goto error;
}
virBufferAsprintf(&opt, ",cert%d=%s", j + 1,
smartcard->data.cert.file[j]);
}
if (smartcard->data.cert.database) {
if (strchr(smartcard->data.cert.database, ',')) {
virBufferFreeAndReset(&opt);
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("invalid database name: %s"),
smartcard->data.cert.database);
goto error;
}
database = smartcard->data.cert.database;
} else {
database = VIR_DOMAIN_SMARTCARD_DEFAULT_DATABASE;
}
virBufferAsprintf(&opt, ",database=%s", database);
break;
case VIR_DOMAIN_SMARTCARD_TYPE_PASSTHROUGH:
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_CHARDEV) ||
!qemuCapsGet(qemuCaps, QEMU_CAPS_CCID_PASSTHRU)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks smartcard "
"passthrough mode support"));
goto error;
}
virCommandAddArg(cmd, "-chardev");
if (!(devstr = qemuBuildChrChardevStr(&smartcard->data.passthru,
smartcard->info.alias,
qemuCaps))) {
virBufferFreeAndReset(&opt);
goto error;
}
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
virBufferAsprintf(&opt, "ccid-card-passthru,chardev=char%s",
smartcard->info.alias);
break;
default:
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected smartcard type %d"),
smartcard->type);
virBufferFreeAndReset(&opt);
goto error;
}
virCommandAddArg(cmd, "-device");
virBufferAsprintf(&opt, ",id=%s,bus=ccid0.0", smartcard->info.alias);
virCommandAddArgBuffer(cmd, &opt);
}
if (!def->nserials) {
/* If we have -device, then we set -nodefault already */
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE))
virCommandAddArgList(cmd, "-serial", "none", NULL);
} else {
for (i = 0 ; i < def->nserials ; i++) {
virDomainChrDefPtr serial = def->serials[i];
char *devstr;
/* Use -chardev with -device if they are available */
if (qemuCapsGet(qemuCaps, QEMU_CAPS_CHARDEV) &&
qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
virCommandAddArg(cmd, "-chardev");
if (!(devstr = qemuBuildChrChardevStr(&serial->source,
serial->info.alias,
qemuCaps)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
virCommandAddArg(cmd, "-device");
virCommandAddArgFormat(cmd, "isa-serial,chardev=char%s,id=%s",
serial->info.alias, serial->info.alias);
} else {
virCommandAddArg(cmd, "-serial");
if (!(devstr = qemuBuildChrArgStr(&serial->source, NULL)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
}
}
if (!def->nparallels) {
/* If we have -device, then we set -nodefault already */
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE))
virCommandAddArgList(cmd, "-parallel", "none", NULL);
} else {
for (i = 0 ; i < def->nparallels ; i++) {
virDomainChrDefPtr parallel = def->parallels[i];
char *devstr;
/* Use -chardev with -device if they are available */
if (qemuCapsGet(qemuCaps, QEMU_CAPS_CHARDEV) &&
qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
virCommandAddArg(cmd, "-chardev");
if (!(devstr = qemuBuildChrChardevStr(&parallel->source,
parallel->info.alias,
qemuCaps)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
virCommandAddArg(cmd, "-device");
virCommandAddArgFormat(cmd, "isa-parallel,chardev=char%s,id=%s",
parallel->info.alias,
parallel->info.alias);
} else {
virCommandAddArg(cmd, "-parallel");
if (!(devstr = qemuBuildChrArgStr(&parallel->source, NULL)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
}
}
for (i = 0 ; i < def->nchannels ; i++) {
virDomainChrDefPtr channel = def->channels[i];
char *devstr;
char *addr;
int port;
switch(channel->targetType) {
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_GUESTFWD:
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_CHARDEV) ||
!qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("guestfwd requires QEMU to support -chardev & -device"));
goto error;
}
virCommandAddArg(cmd, "-chardev");
if (!(devstr = qemuBuildChrChardevStr(&channel->source,
channel->info.alias,
qemuCaps)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
addr = virSocketFormatAddr(channel->target.addr);
if (!addr)
goto error;
port = virSocketGetPort(channel->target.addr);
virCommandAddArg(cmd, "-netdev");
virCommandAddArgFormat(cmd,
"user,guestfwd=tcp:%s:%i,chardev=char%s,id=user-%s",
addr, port, channel->info.alias,
channel->info.alias);
VIR_FREE(addr);
break;
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtio channel requires QEMU to support -device"));
goto error;
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE_SPICEVMC) &&
channel->source.type == VIR_DOMAIN_CHR_TYPE_SPICEVMC) {
/* spicevmc was originally introduced via a -device
* with a backend internal to qemu; although we prefer
* the newer -chardev interface. */
;
} else {
virCommandAddArg(cmd, "-chardev");
if (!(devstr = qemuBuildChrChardevStr(&channel->source,
channel->info.alias,
qemuCaps)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildVirtioSerialPortDevStr(channel,
qemuCaps)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
break;
}
}
/* Explicit console devices */
if (def->console) {
virDomainChrDefPtr console = def->console;
char *devstr;
switch(console->targetType) {
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO:
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
qemuReportError(VIR_ERR_NO_SUPPORT, "%s",
_("virtio channel requires QEMU to support -device"));
goto error;
}
virCommandAddArg(cmd, "-chardev");
if (!(devstr = qemuBuildChrChardevStr(&console->source,
console->info.alias,
qemuCaps)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildVirtioSerialPortDevStr(console,
qemuCaps)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL:
break;
default:
qemuReportError(VIR_ERR_NO_SUPPORT,
_("unsupported console target type %s"),
NULLSTR(virDomainChrConsoleTargetTypeToString(console->targetType)));
goto error;
}
}
virCommandAddArg(cmd, "-usb");
for (i = 0 ; i < def->ninputs ; i++) {
virDomainInputDefPtr input = def->inputs[i];
if (input->bus == VIR_DOMAIN_INPUT_BUS_USB) {
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
char *optstr;
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildUSBInputDevStr(input)))
goto error;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
} else {
virCommandAddArgList(cmd, "-usbdevice",
input->type == VIR_DOMAIN_INPUT_TYPE_MOUSE
? "mouse" : "tablet", NULL);
}
}
}
if (def->ngraphics > 1) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("only 1 graphics device is supported"));
goto error;
}
if ((def->ngraphics == 1) &&
def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC) {
virBuffer opt = VIR_BUFFER_INITIALIZER;
if (def->graphics[0]->data.vnc.socket ||
driver->vncAutoUnixSocket) {
if (!def->graphics[0]->data.vnc.socket &&
virAsprintf(&def->graphics[0]->data.vnc.socket,
"%s/%s.vnc", driver->libDir, def->name) == -1) {
goto no_memory;
}
virBufferAsprintf(&opt, "unix:%s",
def->graphics[0]->data.vnc.socket);
} else if (qemuCapsGet(qemuCaps, QEMU_CAPS_VNC_COLON)) {
const char *addr = def->graphics[0]->data.vnc.listenAddr ?
def->graphics[0]->data.vnc.listenAddr :
driver->vncListen;
bool escapeAddr = strchr(addr, ':') != NULL;
if (escapeAddr)
virBufferAsprintf(&opt, "[%s]", addr);
else
virBufferAdd(&opt, addr, -1);
virBufferAsprintf(&opt, ":%d",
def->graphics[0]->data.vnc.port - 5900);
} else {
virBufferAsprintf(&opt, "%d",
def->graphics[0]->data.vnc.port - 5900);
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_VNC_COLON)) {
if (def->graphics[0]->data.vnc.auth.passwd ||
driver->vncPassword)
virBufferAddLit(&opt, ",password");
if (driver->vncTLS) {
virBufferAddLit(&opt, ",tls");
if (driver->vncTLSx509verify) {
virBufferAsprintf(&opt, ",x509verify=%s",
driver->vncTLSx509certdir);
} else {
virBufferAsprintf(&opt, ",x509=%s",
driver->vncTLSx509certdir);
}
}
if (driver->vncSASL) {
virBufferAddLit(&opt, ",sasl");
if (driver->vncSASLdir)
virCommandAddEnvPair(cmd, "SASL_CONF_DIR",
driver->vncSASLdir);
/* TODO: Support ACLs later */
}
}
virCommandAddArg(cmd, "-vnc");
virCommandAddArgBuffer(cmd, &opt);
if (def->graphics[0]->data.vnc.keymap) {
virCommandAddArgList(cmd, "-k", def->graphics[0]->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 (driver->vncAllowHostAudio) {
virCommandAddEnvPass(cmd, "QEMU_AUDIO_DRV");
} else {
virCommandAddEnvString(cmd, "QEMU_AUDIO_DRV=none");
}
} else if ((def->ngraphics == 1) &&
def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_SDL) {
if (qemuCapsGet(qemuCaps, QEMU_CAPS_0_10) &&
!qemuCapsGet(qemuCaps, QEMU_CAPS_SDL)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("sdl not supported by '%s'"),
def->emulator);
goto error;
}
if (def->graphics[0]->data.sdl.xauth)
virCommandAddEnvPair(cmd, "XAUTHORITY",
def->graphics[0]->data.sdl.xauth);
if (def->graphics[0]->data.sdl.display)
virCommandAddEnvPair(cmd, "DISPLAY",
def->graphics[0]->data.sdl.display);
if (def->graphics[0]->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
*/
virCommandAddEnvPass(cmd, "QEMU_AUDIO_DRV");
virCommandAddEnvPass(cmd, "SDL_AUDIODRIVER");
/* New QEMU has this flag to let us explicitly ask for
* SDL graphics. This is better than relying on the
* default, since the default changes :-( */
if (qemuCapsGet(qemuCaps, QEMU_CAPS_SDL))
virCommandAddArg(cmd, "-sdl");
} else if ((def->ngraphics == 1) &&
def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE) {
virBuffer opt = VIR_BUFFER_INITIALIZER;
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_SPICE)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice graphics are not supported with this QEMU"));
goto error;
}
virBufferAsprintf(&opt, "port=%u", def->graphics[0]->data.spice.port);
if (driver->spiceTLS && def->graphics[0]->data.spice.tlsPort != -1)
virBufferAsprintf(&opt, ",tls-port=%u", def->graphics[0]->data.spice.tlsPort);
if (def->graphics[0]->data.spice.listenAddr)
virBufferAsprintf(&opt, ",addr=%s", def->graphics[0]->data.spice.listenAddr);
else if (driver->spiceListen)
virBufferAsprintf(&opt, ",addr=%s", driver->spiceListen);
/* 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 (!def->graphics[0]->data.spice.auth.passwd &&
!driver->spicePassword)
virBufferAddLit(&opt, ",disable-ticketing");
if (driver->spiceTLS)
virBufferAsprintf(&opt, ",x509-dir=%s",
driver->spiceTLSx509certdir);
for (i = 0 ; i < VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_LAST ; i++) {
int mode = def->graphics[0]->data.spice.channels[i];
switch (mode) {
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_SECURE:
virBufferAsprintf(&opt, ",tls-channel=%s",
virDomainGraphicsSpiceChannelNameTypeToString(i));
break;
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_INSECURE:
virBufferAsprintf(&opt, ",plaintext-channel=%s",
virDomainGraphicsSpiceChannelNameTypeToString(i));
break;
}
}
if (def->graphics[0]->data.spice.image)
virBufferAsprintf(&opt, ",image-compression=%s",
virDomainGraphicsSpiceImageCompressionTypeToString(def->graphics[0]->data.spice.image));
if (def->graphics[0]->data.spice.jpeg)
virBufferAsprintf(&opt, ",jpeg-wan-compression=%s",
virDomainGraphicsSpiceJpegCompressionTypeToString(def->graphics[0]->data.spice.jpeg));
if (def->graphics[0]->data.spice.zlib)
virBufferAsprintf(&opt, ",zlib-glz-wan-compression=%s",
virDomainGraphicsSpiceZlibCompressionTypeToString(def->graphics[0]->data.spice.zlib));
if (def->graphics[0]->data.spice.playback)
virBufferAsprintf(&opt, ",playback-compression=%s",
virDomainGraphicsSpicePlaybackCompressionTypeToString(def->graphics[0]->data.spice.playback));
if (def->graphics[0]->data.spice.streaming)
virBufferAsprintf(&opt, ",streaming-video=%s",
virDomainGraphicsSpiceStreamingModeTypeToString(def->graphics[0]->data.spice.streaming));
virCommandAddArg(cmd, "-spice");
virCommandAddArgBuffer(cmd, &opt);
if (def->graphics[0]->data.spice.keymap)
virCommandAddArgList(cmd, "-k",
def->graphics[0]->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");
} else if ((def->ngraphics == 1)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported graphics type '%s'"),
virDomainGraphicsTypeToString(def->graphics[0]->type));
goto error;
}
if (def->nvideos > 0) {
if (qemuCapsGet(qemuCaps, QEMU_CAPS_VGA)) {
if (def->videos[0]->type == VIR_DOMAIN_VIDEO_TYPE_XEN) {
/* nothing - vga has no effect on Xen pvfb */
} else {
if ((def->videos[0]->type == VIR_DOMAIN_VIDEO_TYPE_QXL) &&
!qemuCapsGet(qemuCaps, QEMU_CAPS_VGA_QXL)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU does not support QXL graphics adapters"));
goto error;
}
const char *vgastr = qemuVideoTypeToString(def->videos[0]->type);
if (!vgastr || STREQ(vgastr, "")) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("video type %s is not supported with QEMU"),
virDomainVideoTypeToString(def->videos[0]->type));
goto error;
}
virCommandAddArgList(cmd, "-vga", vgastr, NULL);
if (def->videos[0]->type == VIR_DOMAIN_VIDEO_TYPE_QXL) {
if (def->videos[0]->vram &&
qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
if (def->videos[0]->vram > (UINT_MAX / 1024)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("value for 'vram' must be less than '%u'"),
UINT_MAX / 1024);
goto error;
}
virCommandAddArg(cmd, "-global");
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE_QXL_VGA))
virCommandAddArgFormat(cmd, "qxl-vga.vram_size=%u",
def->videos[0]->vram * 1024);
else
virCommandAddArgFormat(cmd, "qxl.vram_size=%u",
def->videos[0]->vram * 1024);
}
}
}
} else {
switch (def->videos[0]->type) {
case VIR_DOMAIN_VIDEO_TYPE_VGA:
virCommandAddArg(cmd, "-std-vga");
break;
case VIR_DOMAIN_VIDEO_TYPE_VMVGA:
virCommandAddArg(cmd, "-vmwarevga");
break;
case VIR_DOMAIN_VIDEO_TYPE_XEN:
case VIR_DOMAIN_VIDEO_TYPE_CIRRUS:
/* No special args - this is the default */
break;
default:
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("video type %s is not supported with this QEMU"),
virDomainVideoTypeToString(def->videos[0]->type));
goto error;
}
}
if (def->nvideos > 1) {
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
for (i = 1 ; i < def->nvideos ; i++) {
char *str;
if (def->videos[i]->type != VIR_DOMAIN_VIDEO_TYPE_QXL) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("video type %s is only valid as primary video card"),
virDomainVideoTypeToString(def->videos[0]->type));
goto error;
}
virCommandAddArg(cmd, "-device");
if (!(str = qemuBuildVideoDevStr(def->videos[i], qemuCaps)))
goto error;
virCommandAddArg(cmd, str);
VIR_FREE(str);
}
} else {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("only one video card is currently supported"));
goto error;
}
}
} else {
/* If we have -device, then we set -nodefault already */
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE) &&
qemuCapsGet(qemuCaps, QEMU_CAPS_VGA) &&
qemuCapsGet(qemuCaps, QEMU_CAPS_VGA_NONE))
virCommandAddArgList(cmd, "-vga", "none", NULL);
}
/* Add sound hardware */
if (def->nsounds) {
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
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 {
virCommandAddArg(cmd, "-device");
if (!(str = qemuBuildSoundDevStr(sound, qemuCaps)))
goto error;
virCommandAddArg(cmd, str);
if (sound->model == VIR_DOMAIN_SOUND_MODEL_ICH6) {
char *codecstr = NULL;
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_HDA_DUPLEX)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks hda support"));
goto error;
}
virCommandAddArg(cmd, "-device");
if (!(codecstr = qemuBuildSoundCodecStr(sound,
"hda-duplex"))) {
goto error;
}
virCommandAddArg(cmd, codecstr);
VIR_FREE(codecstr);
}
VIR_FREE(str);
}
}
} else {
int size = 100;
char *modstr;
if (VIR_ALLOC_N(modstr, size+1) < 0)
goto no_memory;
for (i = 0 ; i < def->nsounds && size > 0 ; i++) {
virDomainSoundDefPtr sound = def->sounds[i];
const char *model = virDomainSoundModelTypeToString(sound->model);
if (!model) {
VIR_FREE(modstr);
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("invalid sound model"));
goto error;
}
if (sound->model == VIR_DOMAIN_SOUND_MODEL_ICH6) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks hda support"));
goto error;
}
strncat(modstr, model, size);
size -= strlen(model);
if (i < (def->nsounds - 1))
strncat(modstr, ",", size--);
}
virCommandAddArgList(cmd, "-soundhw", modstr, NULL);
VIR_FREE(modstr);
}
}
/* Add watchdog hardware */
if (def->watchdog) {
virDomainWatchdogDefPtr watchdog = def->watchdog;
char *optstr;
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
virCommandAddArg(cmd, "-device");
optstr = qemuBuildWatchdogDevStr(watchdog, qemuCaps);
if (!optstr)
goto error;
} else {
virCommandAddArg(cmd, "-watchdog");
const char *model = virDomainWatchdogModelTypeToString(watchdog->model);
if (!model) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing watchdog model"));
goto error;
}
if (!(optstr = strdup(model)))
goto no_memory;
}
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
int act = watchdog->action;
if (act == VIR_DOMAIN_WATCHDOG_ACTION_DUMP)
act = VIR_DOMAIN_WATCHDOG_ACTION_PAUSE;
const char *action = virDomainWatchdogActionTypeToString(act);
if (!action) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("invalid watchdog action"));
goto error;
}
virCommandAddArgList(cmd, "-watchdog-action", action, NULL);
}
/* Add host passthrough hardware */
for (i = 0 ; i < def->nhostdevs ; i++) {
virDomainHostdevDefPtr hostdev = def->hostdevs[i];
char *devstr;
if (hostdev->bootIndex) {
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS ||
hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("booting from assigned devices is only"
" supported for PCI devices"));
goto error;
} else if (!qemuCapsGet(qemuCaps, QEMU_CAPS_PCI_BOOTINDEX)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("booting from assigned PCI devices is not"
" supported with this version of qemu"));
goto error;
}
}
/* USB */
if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB) {
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildUSBHostdevDevStr(hostdev)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
} else {
virCommandAddArg(cmd, "-usbdevice");
if (!(devstr = qemuBuildUSBHostdevUsbDevStr(hostdev)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
}
/* PCI */
if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) {
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
char *configfd_name = NULL;
if (qemuCapsGet(qemuCaps, QEMU_CAPS_PCI_CONFIGFD)) {
int configfd = qemuOpenPCIConfig(hostdev);
if (configfd >= 0) {
if (virAsprintf(&configfd_name, "%d", configfd) < 0) {
VIR_FORCE_CLOSE(configfd);
goto no_memory;
}
virCommandTransferFD(cmd, configfd);
}
}
virCommandAddArg(cmd, "-device");
devstr = qemuBuildPCIHostdevDevStr(hostdev, configfd_name, qemuCaps);
VIR_FREE(configfd_name);
if (!devstr)
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
} else if (qemuCapsGet(qemuCaps, QEMU_CAPS_PCIDEVICE)) {
virCommandAddArg(cmd, "-pcidevice");
if (!(devstr = qemuBuildPCIHostdevPCIDevStr(hostdev)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
} else {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("PCI device assignment is not supported by this version of qemu"));
goto error;
}
}
}
/* Migration is very annoying due to wildly varying syntax &
* capabilities over time of KVM / QEMU codebases.
*/
if (migrateFrom) {
virCommandAddArg(cmd, "-incoming");
if (STRPREFIX(migrateFrom, "tcp")) {
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_TCP)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("TCP migration is not supported with "
"this QEMU binary"));
goto error;
}
virCommandAddArg(cmd, migrateFrom);
} else if (STREQ(migrateFrom, "stdio")) {
if (qemuCapsGet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_FD)) {
virCommandAddArgFormat(cmd, "fd:%d", migrateFd);
/* migrateFd might be cloexec, but qemu must inherit
* it if vmop indicates qemu will be executed */
if (vmop != VIR_VM_OP_NO_OP &&
virSetInherit(migrateFd, true) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to clear cloexec flag"));
goto error;
}
virCommandPreserveFD(cmd, migrateFd);
} else if (qemuCapsGet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_EXEC)) {
virCommandAddArg(cmd, "exec:cat");
virCommandSetInputFD(cmd, migrateFd);
} else if (qemuCapsGet(qemuCaps, QEMU_CAPS_MIGRATE_KVM_STDIO)) {
virCommandAddArg(cmd, migrateFrom);
virCommandSetInputFD(cmd, migrateFd);
} else {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("STDIO migration is not supported "
"with this QEMU binary"));
goto error;
}
} else if (STRPREFIX(migrateFrom, "exec")) {
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_EXEC)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("EXEC migration is not supported "
"with this QEMU binary"));
goto error;
}
virCommandAddArg(cmd, migrateFrom);
} else if (STRPREFIX(migrateFrom, "fd")) {
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_FD)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("FD migration is not supported "
"with this QEMU binary"));
goto error;
}
virCommandAddArg(cmd, migrateFrom);
/* migrateFd might be cloexec, but qemu must inherit
* it if vmop indicates qemu will be executed */
if (vmop != VIR_VM_OP_NO_OP &&
virSetInherit(migrateFd, true) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to clear cloexec flag"));
goto error;
}
virCommandPreserveFD(cmd, migrateFd);
} else if (STRPREFIX(migrateFrom, "unix")) {
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_UNIX)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("UNIX migration is not supported "
"with this QEMU binary"));
goto error;
}
virCommandAddArg(cmd, migrateFrom);
} else {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("unknown migration protocol"));
goto error;
}
}
/* QEMU changed its default behavior to not include the virtio balloon
* device. Explicitly request it to ensure it will be present.
*
* NB: Earlier we declared that VirtIO balloon will always be in
* slot 0x3 on bus 0x0
*/
if ((def->memballoon) &&
(def->memballoon->model != VIR_DOMAIN_MEMBALLOON_MODEL_NONE)) {
if (def->memballoon->model != VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Memory balloon device type '%s' is not supported by this version of qemu"),
virDomainMemballoonModelTypeToString(def->memballoon->model));
goto error;
}
if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
char *optstr;
virCommandAddArg(cmd, "-device");
optstr = qemuBuildMemballoonDevStr(def->memballoon, qemuCaps);
if (!optstr)
goto error;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
} else if (qemuCapsGet(qemuCaps, QEMU_CAPS_BALLOON)) {
virCommandAddArgList(cmd, "-balloon", "virtio", NULL);
}
}
if (current_snapshot && current_snapshot->def->active)
virCommandAddArgList(cmd, "-loadvm", current_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],
qemucmd->env_value[i]
? qemucmd->env_value[i] : "");
}
return cmd;
no_memory:
virReportOOMError();
error:
for (i = 0; i <= last_good_net; i++)
virDomainConfNWFilterTeardown(def->nets[i]);
virBufferFreeAndReset(&rbd_hosts);
virCommandFree(cmd);
return NULL;
}
/*
* This method takes a string representing a QEMU command line ARGV set
* optionally prefixed by a list of environment variables. It then tries
* to split it up into a NULL terminated list of env & argv, splitting
* on space
*/
static int qemuStringToArgvEnv(const char *args,
const char ***retenv,
const char ***retargv)
{
char **arglist = NULL;
int argcount = 0;
int argalloc = 0;
int envend;
int i;
const char *curr = args;
const char *start;
const char **progenv = NULL;
const char **progargv = NULL;
/* Iterate over string, splitting on sequences of ' ' */
while (curr && *curr != '\0') {
char *arg;
const char *next;
start = curr;
/* accept a space in CEPH_ARGS */
if (STRPREFIX(curr, "CEPH_ARGS=-m ")) {
start += strlen("CEPH_ARGS=-m ");
}
if (*start == '\'') {
if (start == curr)
curr++;
next = strchr(start + 1, '\'');
} else if (*start == '"') {
if (start == curr)
curr++;
next = strchr(start + 1, '"');
} else {
next = strchr(start, ' ');
}
if (!next)
next = strchr(curr, '\n');
if (next) {
arg = strndup(curr, next-curr);
if (*next == '\'' ||
*next == '"')
next++;
} else {
arg = strdup(curr);
}
if (!arg)
goto no_memory;
if (argalloc == argcount) {
if (VIR_REALLOC_N(arglist, argalloc+10) < 0) {
VIR_FREE(arg);
goto no_memory;
}
argalloc+=10;
}
arglist[argcount++] = arg;
while (next && c_isspace(*next))
next++;
curr = next;
}
/* Iterate over list of args, finding first arg not containing
* the '=' character (eg, skip over env vars FOO=bar) */
for (envend = 0 ; ((envend < argcount) &&
(strchr(arglist[envend], '=') != NULL));
envend++)
; /* nada */
/* Copy the list of env vars */
if (envend > 0) {
if (VIR_REALLOC_N(progenv, envend+1) < 0)
goto no_memory;
for (i = 0 ; i < envend ; i++) {
progenv[i] = arglist[i];
arglist[i] = NULL;
}
progenv[i] = NULL;
}
/* Copy the list of argv */
if (VIR_REALLOC_N(progargv, argcount-envend + 1) < 0)
goto no_memory;
for (i = envend ; i < argcount ; i++)
progargv[i-envend] = arglist[i];
progargv[i-envend] = NULL;
VIR_FREE(arglist);
*retenv = progenv;
*retargv = progargv;
return 0;
no_memory:
for (i = 0 ; progenv && progenv[i] ; i++)
VIR_FREE(progenv[i]);
VIR_FREE(progenv);
for (i = 0 ; i < argcount ; i++)
VIR_FREE(arglist[i]);
VIR_FREE(arglist);
virReportOOMError();
return -1;
}
/*
* Search for a named env variable, and return the value part
*/
static const char *qemuFindEnv(const char **progenv,
const char *name)
{
int i;
int len = strlen(name);
for (i = 0 ; progenv && progenv[i] ; i++) {
if (STREQLEN(progenv[i], name, len) &&
progenv[i][len] == '=')
return progenv[i] + len + 1;
}
return NULL;
}
/*
* Takes a string containing a set of key=value,key=value,key...
* parameters and splits them up, returning two arrays with
* the individual keys and values. If allowEmptyValue is nonzero,
* the "=value" part is optional and if a key with no value is found,
* NULL is be placed into corresponding place in retvalues.
*/
int
qemuParseKeywords(const char *str,
char ***retkeywords,
char ***retvalues,
int allowEmptyValue)
{
int keywordCount = 0;
int keywordAlloc = 0;
char **keywords = NULL;
char **values = NULL;
const char *start = str;
const char *end;
int i;
*retkeywords = NULL;
*retvalues = NULL;
end = start + strlen(str);
while (start) {
const char *separator;
const char *endmark;
char *keyword;
char *value = NULL;
if (!(endmark = strchr(start, ',')))
endmark = end;
if (!(separator = strchr(start, '=')))
separator = end;
if (separator >= endmark) {
if (!allowEmptyValue) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("malformed keyword arguments in '%s'"), str);
goto error;
}
separator = endmark;
}
if (!(keyword = strndup(start, separator - start)))
goto no_memory;
if (separator < endmark) {
separator++;
if (!(value = strndup(separator, endmark - separator))) {
VIR_FREE(keyword);
goto no_memory;
}
}
if (keywordAlloc == keywordCount) {
if (VIR_REALLOC_N(keywords, keywordAlloc + 10) < 0 ||
VIR_REALLOC_N(values, keywordAlloc + 10) < 0) {
VIR_FREE(keyword);
VIR_FREE(value);
goto no_memory;
}
keywordAlloc += 10;
}
keywords[keywordCount] = keyword;
values[keywordCount] = value;
keywordCount++;
start = endmark < end ? endmark + 1 : NULL;
}
*retkeywords = keywords;
*retvalues = values;
return keywordCount;
no_memory:
virReportOOMError();
error:
for (i = 0 ; i < keywordCount ; i++) {
VIR_FREE(keywords[i]);
VIR_FREE(values[i]);
}
VIR_FREE(keywords);
VIR_FREE(values);
return -1;
}
/*
* Tries to parse new style QEMU -drive args.
*
* eg -drive file=/dev/HostVG/VirtData1,if=ide,index=1
*
* Will fail if not using the 'index' keyword
*/
static virDomainDiskDefPtr
qemuParseCommandLineDisk(virCapsPtr caps,
const char *val,
int nvirtiodisk)
{
virDomainDiskDefPtr def = NULL;
char **keywords;
char **values;
int nkeywords;
int i;
int idx = -1;
int busid = -1;
int unitid = -1;
if ((nkeywords = qemuParseKeywords(val,
&keywords,
&values, 0)) < 0)
return NULL;
if (VIR_ALLOC(def) < 0) {
virReportOOMError();
goto cleanup;
}
def->bus = VIR_DOMAIN_DISK_BUS_IDE;
def->device = VIR_DOMAIN_DISK_DEVICE_DISK;
def->type = VIR_DOMAIN_DISK_TYPE_FILE;
for (i = 0 ; i < nkeywords ; i++) {
if (STREQ(keywords[i], "file")) {
if (values[i] && STRNEQ(values[i], "")) {
def->src = values[i];
values[i] = NULL;
if (STRPREFIX(def->src, "/dev/"))
def->type = VIR_DOMAIN_DISK_TYPE_BLOCK;
else if (STRPREFIX(def->src, "nbd:")) {
char *host, *port;
def->type = VIR_DOMAIN_DISK_TYPE_NETWORK;
def->protocol = VIR_DOMAIN_DISK_PROTOCOL_NBD;
host = def->src + strlen("nbd:");
port = strchr(host, ':');
if (!port) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse nbd filename '%s'"),
def->src);
def = NULL;
goto cleanup;
}
*port++ = '\0';
if (VIR_ALLOC(def->hosts) < 0) {
virReportOOMError();
goto cleanup;
}
def->nhosts = 1;
def->hosts->name = strdup(host);
if (!def->hosts->name) {
virReportOOMError();
goto cleanup;
}
def->hosts->port = strdup(port);
if (!def->hosts->port) {
virReportOOMError();
goto cleanup;
}
VIR_FREE(def->src);
def->src = NULL;
} else if (STRPREFIX(def->src, "rbd:")) {
char *p = def->src;
def->type = VIR_DOMAIN_DISK_TYPE_NETWORK;
def->protocol = VIR_DOMAIN_DISK_PROTOCOL_RBD;
def->src = strdup(p + strlen("rbd:"));
if (!def->src) {
virReportOOMError();
goto cleanup;
}
VIR_FREE(p);
} else if (STRPREFIX(def->src, "sheepdog:")) {
char *p = def->src;
char *port, *vdi;
def->type = VIR_DOMAIN_DISK_TYPE_NETWORK;
def->protocol = VIR_DOMAIN_DISK_PROTOCOL_SHEEPDOG;
def->src = strdup(p + strlen("sheepdog:"));
if (!def->src) {
virReportOOMError();
goto cleanup;
}
/* def->src must be [vdiname] or [host]:[port]:[vdiname] */
port = strchr(def->src, ':');
if (port) {
*port++ = '\0';
vdi = strchr(port, ':');
if (!vdi) {
def = NULL;
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse sheepdog filename '%s'"), p);
goto cleanup;
}
*vdi++ = '\0';
if (VIR_ALLOC(def->hosts) < 0) {
virReportOOMError();
goto cleanup;
}
def->nhosts = 1;
def->hosts->name = def->src;
def->hosts->port = strdup(port);
if (!def->hosts->port) {
virReportOOMError();
goto cleanup;
}
def->src = strdup(vdi);
if (!def->src) {
virReportOOMError();
goto cleanup;
}
}
VIR_FREE(p);
} else
def->type = VIR_DOMAIN_DISK_TYPE_FILE;
} else {
def->type = VIR_DOMAIN_DISK_TYPE_FILE;
}
} else if (STREQ(keywords[i], "if")) {
if (STREQ(values[i], "ide"))
def->bus = VIR_DOMAIN_DISK_BUS_IDE;
else if (STREQ(values[i], "scsi"))
def->bus = VIR_DOMAIN_DISK_BUS_SCSI;
else if (STREQ(values[i], "virtio"))
def->bus = VIR_DOMAIN_DISK_BUS_VIRTIO;
else if (STREQ(values[i], "xen"))
def->bus = VIR_DOMAIN_DISK_BUS_XEN;
} else if (STREQ(keywords[i], "media")) {
if (STREQ(values[i], "cdrom")) {
def->device = VIR_DOMAIN_DISK_DEVICE_CDROM;
def->readonly = 1;
} else if (STREQ(values[i], "floppy"))
def->device = VIR_DOMAIN_DISK_DEVICE_FLOPPY;
} else if (STREQ(keywords[i], "format")) {
def->driverName = strdup("qemu");
if (!def->driverName) {
virDomainDiskDefFree(def);
def = NULL;
virReportOOMError();
goto cleanup;
}
def->driverType = values[i];
values[i] = NULL;
} else if (STREQ(keywords[i], "cache")) {
if (STREQ(values[i], "off") ||
STREQ(values[i], "none"))
def->cachemode = VIR_DOMAIN_DISK_CACHE_DISABLE;
else if (STREQ(values[i], "writeback") ||
STREQ(values[i], "on"))
def->cachemode = VIR_DOMAIN_DISK_CACHE_WRITEBACK;
else if (STREQ(values[i], "writethrough"))
def->cachemode = VIR_DOMAIN_DISK_CACHE_WRITETHRU;
} else if (STREQ(keywords[i], "werror") ||
STREQ(keywords[i], "rerror")) {
if (STREQ(values[i], "stop"))
def->error_policy = VIR_DOMAIN_DISK_ERROR_POLICY_STOP;
else if (STREQ(values[i], "ignore"))
def->error_policy = VIR_DOMAIN_DISK_ERROR_POLICY_IGNORE;
else if (STREQ(values[i], "enospace"))
def->error_policy = VIR_DOMAIN_DISK_ERROR_POLICY_ENOSPACE;
} else if (STREQ(keywords[i], "index")) {
if (virStrToLong_i(values[i], NULL, 10, &idx) < 0) {
virDomainDiskDefFree(def);
def = NULL;
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse drive index '%s'"), val);
goto cleanup;
}
} else if (STREQ(keywords[i], "bus")) {
if (virStrToLong_i(values[i], NULL, 10, &busid) < 0) {
virDomainDiskDefFree(def);
def = NULL;
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse drive bus '%s'"), val);
goto cleanup;
}
} else if (STREQ(keywords[i], "unit")) {
if (virStrToLong_i(values[i], NULL, 10, &unitid) < 0) {
virDomainDiskDefFree(def);
def = NULL;
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse drive unit '%s'"), val);
goto cleanup;
}
} else if (STREQ(keywords[i], "readonly")) {
if ((values[i] == NULL) || STREQ(values[i], "on"))
def->readonly = 1;
} else if (STREQ(keywords[i], "aio")) {
if ((def->iomode = virDomainDiskIoTypeFromString(values[i])) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse io mode '%s'"), values[i]);
}
}
}
if (!def->src &&
def->device == VIR_DOMAIN_DISK_DEVICE_DISK &&
def->type != VIR_DOMAIN_DISK_TYPE_NETWORK) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("missing file parameter in drive '%s'"), val);
virDomainDiskDefFree(def);
def = NULL;
goto cleanup;
}
if (idx == -1 &&
def->bus == VIR_DOMAIN_DISK_BUS_VIRTIO)
idx = nvirtiodisk;
if (idx == -1 &&
unitid == -1 &&
busid == -1) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("missing index/unit/bus parameter in drive '%s'"), val);
virDomainDiskDefFree(def);
def = NULL;
goto cleanup;
}
if (idx == -1) {
if (unitid == -1)
unitid = 0;
if (busid == -1)
busid = 0;
switch (def->bus) {
case VIR_DOMAIN_DISK_BUS_IDE:
idx = (busid * 2) + unitid;
break;
case VIR_DOMAIN_DISK_BUS_SCSI:
idx = (busid * 7) + unitid;
break;
default:
idx = unitid;
break;
}
}
if (def->bus == VIR_DOMAIN_DISK_BUS_IDE) {
def->dst = strdup("hda");
} else if (def->bus == VIR_DOMAIN_DISK_BUS_SCSI) {
def->dst = strdup("sda");
} else if (def->bus == VIR_DOMAIN_DISK_BUS_VIRTIO) {
def->dst = strdup("vda");
} else if (def->bus == VIR_DOMAIN_DISK_BUS_XEN) {
def->dst = strdup("xvda");
} else {
def->dst = strdup("hda");
}
if (!def->dst) {
virDomainDiskDefFree(def);
def = NULL;
virReportOOMError();
goto cleanup;
}
if (STREQ(def->dst, "xvda"))
def->dst[3] = 'a' + idx;
else
def->dst[2] = 'a' + idx;
if (virDomainDiskDefAssignAddress(caps, def) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("invalid device name '%s'"), def->dst);
virDomainDiskDefFree(def);
def = NULL;
/* fall through to "cleanup" */
}
cleanup:
for (i = 0 ; i < nkeywords ; i++) {
VIR_FREE(keywords[i]);
VIR_FREE(values[i]);
}
VIR_FREE(keywords);
VIR_FREE(values);
return def;
}
/*
* Tries to find a NIC definition matching a vlan we want
*/
static const char *
qemuFindNICForVLAN(int nnics,
const char **nics,
int wantvlan)
{
int i;
for (i = 0 ; i < nnics ; i++) {
int gotvlan;
const char *tmp = strstr(nics[i], "vlan=");
char *end;
if (!tmp)
continue;
tmp += strlen("vlan=");
if (virStrToLong_i(tmp, &end, 10, &gotvlan) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse NIC vlan in '%s'"), nics[i]);
return NULL;
}
if (gotvlan == wantvlan)
return nics[i];
}
if (wantvlan == 0 && nnics > 0)
return nics[0];
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot find NIC definition for vlan %d"), wantvlan);
return NULL;
}
/*
* Tries to parse a QEMU -net backend argument. Gets given
* a list of all known -net frontend arguments to try and
* match up against. Horribly complicated stuff
*/
static virDomainNetDefPtr
qemuParseCommandLineNet(virCapsPtr caps,
const char *val,
int nnics,
const char **nics)
{
virDomainNetDefPtr def = NULL;
char **keywords = NULL;
char **values = NULL;
int nkeywords;
const char *nic;
int wantvlan = 0;
const char *tmp;
int genmac = 1;
int i;
tmp = strchr(val, ',');
if (tmp) {
if ((nkeywords = qemuParseKeywords(tmp+1,
&keywords,
&values, 0)) < 0)
return NULL;
} else {
nkeywords = 0;
}
if (VIR_ALLOC(def) < 0) {
virReportOOMError();
goto cleanup;
}
/* 'tap' could turn into libvirt type=ethernet, type=bridge or
* type=network, but we can't tell, so use the generic config */
if (STRPREFIX(val, "tap,"))
def->type = VIR_DOMAIN_NET_TYPE_ETHERNET;
else if (STRPREFIX(val, "socket"))
def->type = VIR_DOMAIN_NET_TYPE_CLIENT;
else if (STRPREFIX(val, "user"))
def->type = VIR_DOMAIN_NET_TYPE_USER;
else
def->type = VIR_DOMAIN_NET_TYPE_ETHERNET;
for (i = 0 ; i < nkeywords ; i++) {
if (STREQ(keywords[i], "vlan")) {
if (virStrToLong_i(values[i], NULL, 10, &wantvlan) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse vlan in '%s'"), val);
virDomainNetDefFree(def);
def = NULL;
goto cleanup;
}
} else if (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET &&
STREQ(keywords[i], "script") && STRNEQ(values[i], "")) {
def->data.ethernet.script = values[i];
values[i] = NULL;
} else if (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET &&
STREQ(keywords[i], "ifname")) {
def->ifname = values[i];
values[i] = NULL;
}
}
/* Done parsing the nic backend. Now to try and find corresponding
* frontend, based off vlan number. NB this assumes a 1-1 mapping
*/
nic = qemuFindNICForVLAN(nnics, nics, wantvlan);
if (!nic) {
virDomainNetDefFree(def);
def = NULL;
goto cleanup;
}
if (!STRPREFIX(nic, "nic")) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse NIC definition '%s'"), nic);
virDomainNetDefFree(def);
def = NULL;
goto cleanup;
}
for (i = 0 ; i < nkeywords ; i++) {
VIR_FREE(keywords[i]);
VIR_FREE(values[i]);
}
VIR_FREE(keywords);
VIR_FREE(values);
if (STRPREFIX(nic, "nic,")) {
if ((nkeywords = qemuParseKeywords(nic + strlen("nic,"),
&keywords,
&values, 0)) < 0) {
virDomainNetDefFree(def);
def = NULL;
goto cleanup;
}
} else {
nkeywords = 0;
}
for (i = 0 ; i < nkeywords ; i++) {
if (STREQ(keywords[i], "macaddr")) {
genmac = 0;
if (virParseMacAddr(values[i], def->mac) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unable to parse mac address '%s'"),
values[i]);
virDomainNetDefFree(def);
def = NULL;
goto cleanup;
}
} else if (STREQ(keywords[i], "model")) {
def->model = values[i];
values[i] = NULL;
} else if (STREQ(keywords[i], "vhost")) {
if ((values[i] == NULL) || STREQ(values[i], "on")) {
def->driver.virtio.name = VIR_DOMAIN_NET_BACKEND_TYPE_VHOST;
} else if (STREQ(keywords[i], "off")) {
def->driver.virtio.name = VIR_DOMAIN_NET_BACKEND_TYPE_QEMU;
}
} else if (STREQ(keywords[i], "sndbuf") && values[i]) {
if (virStrToLong_ul(values[i], NULL, 10, &def->tune.sndbuf) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse sndbuf size in '%s'"), val);
virDomainNetDefFree(def);
def = NULL;
goto cleanup;
}
def->tune.sndbuf_specified = true;
}
}
if (genmac)
virCapabilitiesGenerateMac(caps, def->mac);
cleanup:
for (i = 0 ; i < nkeywords ; i++) {
VIR_FREE(keywords[i]);
VIR_FREE(values[i]);
}
VIR_FREE(keywords);
VIR_FREE(values);
return def;
}
/*
* Tries to parse a QEMU PCI device
*/
static virDomainHostdevDefPtr
qemuParseCommandLinePCI(const char *val)
{
virDomainHostdevDefPtr def = NULL;
int bus = 0, slot = 0, func = 0;
const char *start;
char *end;
if (!STRPREFIX(val, "host=")) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown PCI device syntax '%s'"), val);
VIR_FREE(def);
goto cleanup;
}
start = val + strlen("host=");
if (virStrToLong_i(start, &end, 16, &bus) < 0 || *end != ':') {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot extract PCI device bus '%s'"), val);
VIR_FREE(def);
goto cleanup;
}
start = end + 1;
if (virStrToLong_i(start, &end, 16, &slot) < 0 || *end != '.') {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot extract PCI device slot '%s'"), val);
VIR_FREE(def);
goto cleanup;
}
start = end + 1;
if (virStrToLong_i(start, NULL, 16, &func) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot extract PCI device function '%s'"), val);
VIR_FREE(def);
goto cleanup;
}
if (VIR_ALLOC(def) < 0) {
virReportOOMError();
goto cleanup;
}
def->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS;
def->managed = 1;
def->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI;
def->source.subsys.u.pci.bus = bus;
def->source.subsys.u.pci.slot = slot;
def->source.subsys.u.pci.function = func;
cleanup:
return def;
}
/*
* Tries to parse a QEMU USB device
*/
static virDomainHostdevDefPtr
qemuParseCommandLineUSB(const char *val)
{
virDomainHostdevDefPtr def = NULL;
int first = 0, second = 0;
const char *start;
char *end;
if (!STRPREFIX(val, "host:")) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown USB device syntax '%s'"), val);
VIR_FREE(def);
goto cleanup;
}
start = val + strlen("host:");
if (strchr(start, ':')) {
if (virStrToLong_i(start, &end, 16, &first) < 0 || *end != ':') {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot extract USB device vendor '%s'"), val);
VIR_FREE(def);
goto cleanup;
}
start = end + 1;
if (virStrToLong_i(start, NULL, 16, &second) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot extract USB device product '%s'"), val);
VIR_FREE(def);
goto cleanup;
}
} else {
if (virStrToLong_i(start, &end, 10, &first) < 0 || *end != '.') {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot extract USB device bus '%s'"), val);
VIR_FREE(def);
goto cleanup;
}
start = end + 1;
if (virStrToLong_i(start, NULL, 10, &second) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot extract USB device address '%s'"), val);
VIR_FREE(def);
goto cleanup;
}
}
if (VIR_ALLOC(def) < 0) {
virReportOOMError();
goto cleanup;
}
def->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS;
def->managed = 0;
def->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB;
if (*end == '.') {
def->source.subsys.u.usb.bus = first;
def->source.subsys.u.usb.device = second;
} else {
def->source.subsys.u.usb.vendor = first;
def->source.subsys.u.usb.product = second;
}
cleanup:
return def;
}
/*
* Tries to parse a QEMU serial/parallel device
*/
static virDomainChrDefPtr
qemuParseCommandLineChr(const char *val)
{
virDomainChrDefPtr def;
if (!(def = virDomainChrDefNew()))
goto error;
if (STREQ(val, "null")) {
def->source.type = VIR_DOMAIN_CHR_TYPE_NULL;
} else if (STREQ(val, "vc")) {
def->source.type = VIR_DOMAIN_CHR_TYPE_VC;
} else if (STREQ(val, "pty")) {
def->source.type = VIR_DOMAIN_CHR_TYPE_PTY;
} else if (STRPREFIX(val, "file:")) {
def->source.type = VIR_DOMAIN_CHR_TYPE_FILE;
def->source.data.file.path = strdup(val+strlen("file:"));
if (!def->source.data.file.path)
goto no_memory;
} else if (STRPREFIX(val, "pipe:")) {
def->source.type = VIR_DOMAIN_CHR_TYPE_PIPE;
def->source.data.file.path = strdup(val+strlen("pipe:"));
if (!def->source.data.file.path)
goto no_memory;
} else if (STREQ(val, "stdio")) {
def->source.type = VIR_DOMAIN_CHR_TYPE_STDIO;
} else if (STRPREFIX(val, "udp:")) {
const char *svc1, *host2, *svc2;
def->source.type = VIR_DOMAIN_CHR_TYPE_UDP;
val += strlen("udp:");
svc1 = strchr(val, ':');
host2 = svc1 ? strchr(svc1, '@') : NULL;
svc2 = host2 ? strchr(host2, ':') : NULL;
if (svc1)
def->source.data.udp.connectHost = strndup(val, svc1-val);
else
def->source.data.udp.connectHost = strdup(val);
if (!def->source.data.udp.connectHost)
goto no_memory;
if (svc1) {
svc1++;
if (host2)
def->source.data.udp.connectService = strndup(svc1, host2-svc1);
else
def->source.data.udp.connectService = strdup(svc1);
if (!def->source.data.udp.connectService)
goto no_memory;
}
if (host2) {
host2++;
if (svc2)
def->source.data.udp.bindHost = strndup(host2, svc2-host2);
else
def->source.data.udp.bindHost = strdup(host2);
if (!def->source.data.udp.bindHost)
goto no_memory;
}
if (svc2) {
svc2++;
def->source.data.udp.bindService = strdup(svc2);
if (!def->source.data.udp.bindService)
goto no_memory;
}
} else if (STRPREFIX(val, "tcp:") ||
STRPREFIX(val, "telnet:")) {
const char *opt, *svc;
def->source.type = VIR_DOMAIN_CHR_TYPE_TCP;
if (STRPREFIX(val, "tcp:")) {
val += strlen("tcp:");
} else {
val += strlen("telnet:");
def->source.data.tcp.protocol = VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET;
}
svc = strchr(val, ':');
if (!svc) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot find port number in character device %s"), val);
goto error;
}
opt = strchr(svc, ',');
if (opt && strstr(opt, "server"))
def->source.data.tcp.listen = true;
def->source.data.tcp.host = strndup(val, svc-val);
if (!def->source.data.tcp.host)
goto no_memory;
svc++;
if (opt) {
def->source.data.tcp.service = strndup(svc, opt-svc);
} else {
def->source.data.tcp.service = strdup(svc);
}
if (!def->source.data.tcp.service)
goto no_memory;
} else if (STRPREFIX(val, "unix:")) {
const char *opt;
val += strlen("unix:");
opt = strchr(val, ',');
def->source.type = VIR_DOMAIN_CHR_TYPE_UNIX;
if (opt) {
if (strstr(opt, "listen"))
def->source.data.nix.listen = true;
def->source.data.nix.path = strndup(val, opt-val);
} else {
def->source.data.nix.path = strdup(val);
}
if (!def->source.data.nix.path)
goto no_memory;
} else if (STRPREFIX(val, "/dev")) {
def->source.type = VIR_DOMAIN_CHR_TYPE_DEV;
def->source.data.file.path = strdup(val);
if (!def->source.data.file.path)
goto no_memory;
} else {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown character device syntax %s"), val);
goto error;
}
return def;
no_memory:
virReportOOMError();
error:
virDomainChrDefFree(def);
return NULL;
}
static virCPUDefPtr
qemuInitGuestCPU(virDomainDefPtr dom)
{
if (!dom->cpu) {
virCPUDefPtr cpu;
if (VIR_ALLOC(cpu) < 0) {
virReportOOMError();
return NULL;
}
cpu->type = VIR_CPU_TYPE_GUEST;
cpu->match = VIR_CPU_MATCH_EXACT;
dom->cpu = cpu;
}
return dom->cpu;
}
static int
qemuParseCommandLineCPU(virDomainDefPtr dom,
const char *val)
{
virCPUDefPtr cpu;
const char *p = val;
const char *next;
if (!(cpu = qemuInitGuestCPU(dom)))
goto error;
do {
if (*p == '\0' || *p == ',')
goto syntax;
if ((next = strchr(p, ',')))
next++;
if (!cpu->model) {
if (next)
cpu->model = strndup(p, next - p - 1);
else
cpu->model = strdup(p);
if (!cpu->model)
goto no_memory;
}
else if (*p == '+' || *p == '-') {
char *feature;
int policy;
int ret;
if (*p == '+')
policy = VIR_CPU_FEATURE_REQUIRE;
else
policy = VIR_CPU_FEATURE_DISABLE;
p++;
if (*p == '\0' || *p == ',')
goto syntax;
if (next)
feature = strndup(p, next - p - 1);
else
feature = strdup(p);
ret = virCPUDefAddFeature(cpu, feature, policy);
VIR_FREE(feature);
if (ret < 0)
goto error;
}
} while ((p = next));
return 0;
syntax:
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown CPU syntax '%s'"), val);
goto error;
no_memory:
virReportOOMError();
error:
return -1;
}
static int
qemuParseCommandLineSmp(virDomainDefPtr dom,
const char *val)
{
unsigned int sockets = 0;
unsigned int cores = 0;
unsigned int threads = 0;
unsigned int maxcpus = 0;
int i;
int nkws;
char **kws;
char **vals;
int n;
char *end;
int ret;
nkws = qemuParseKeywords(val, &kws, &vals, 1);
if (nkws < 0)
return -1;
for (i = 0; i < nkws; i++) {
if (vals[i] == NULL) {
if (i > 0 ||
virStrToLong_i(kws[i], &end, 10, &n) < 0 || *end != '\0')
goto syntax;
dom->vcpus = n;
} else {
if (virStrToLong_i(vals[i], &end, 10, &n) < 0 || *end != '\0')
goto syntax;
if (STREQ(kws[i], "sockets"))
sockets = n;
else if (STREQ(kws[i], "cores"))
cores = n;
else if (STREQ(kws[i], "threads"))
threads = n;
else if (STREQ(kws[i], "maxcpus"))
maxcpus = n;
else
goto syntax;
}
}
dom->maxvcpus = maxcpus ? maxcpus : dom->vcpus;
if (sockets && cores && threads) {
virCPUDefPtr cpu;
if (!(cpu = qemuInitGuestCPU(dom)))
goto error;
cpu->sockets = sockets;
cpu->cores = cores;
cpu->threads = threads;
} else if (sockets || cores || threads)
goto syntax;
ret = 0;
cleanup:
for (i = 0; i < nkws; i++) {
VIR_FREE(kws[i]);
VIR_FREE(vals[i]);
}
VIR_FREE(kws);
VIR_FREE(vals);
return ret;
syntax:
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse CPU topology '%s'"), val);
error:
ret = -1;
goto cleanup;
}
/*
* Analyse the env and argv settings and reconstruct a
* virDomainDefPtr representing these settings as closely
* as is practical. This is not an exact science....
*/
virDomainDefPtr qemuParseCommandLine(virCapsPtr caps,
const char **progenv,
const char **progargv)
{
virDomainDefPtr def;
int i;
int nographics = 0;
int fullscreen = 0;
char *path;
int nnics = 0;
const char **nics = NULL;
int video = VIR_DOMAIN_VIDEO_TYPE_CIRRUS;
int nvirtiodisk = 0;
qemuDomainCmdlineDefPtr cmd;
if (!progargv[0]) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("no emulator path found"));
return NULL;
}
if (VIR_ALLOC(def) < 0)
goto no_memory;
/* allocate the cmdlinedef up-front; if it's unused, we'll free it later */
if (VIR_ALLOC(cmd) < 0)
goto no_memory;
virUUIDGenerate(def->uuid);
def->id = -1;
def->mem.cur_balloon = def->mem.max_balloon = 64 * 1024;
def->maxvcpus = 1;
def->vcpus = 1;
def->clock.offset = VIR_DOMAIN_CLOCK_OFFSET_UTC;
def->features = (1 << VIR_DOMAIN_FEATURE_ACPI)
/*| (1 << VIR_DOMAIN_FEATURE_APIC)*/;
def->onReboot = VIR_DOMAIN_LIFECYCLE_RESTART;
def->onCrash = VIR_DOMAIN_LIFECYCLE_DESTROY;
def->onPoweroff = VIR_DOMAIN_LIFECYCLE_DESTROY;
def->virtType = VIR_DOMAIN_VIRT_QEMU;
if (!(def->emulator = strdup(progargv[0])))
goto no_memory;
if (strstr(def->emulator, "kvm")) {
def->virtType = VIR_DOMAIN_VIRT_KVM;
def->features |= (1 << VIR_DOMAIN_FEATURE_PAE);
}
if (strstr(def->emulator, "xenner")) {
def->virtType = VIR_DOMAIN_VIRT_KVM;
def->os.type = strdup("xen");
} else {
def->os.type = strdup("hvm");
}
if (!def->os.type)
goto no_memory;
if (STRPREFIX(def->emulator, "qemu"))
path = def->emulator;
else
path = strstr(def->emulator, "qemu");
if (path &&
STRPREFIX(path, "qemu-system-"))
def->os.arch = strdup(path + strlen("qemu-system-"));
else
def->os.arch = strdup("i686");
if (!def->os.arch)
goto no_memory;
#define WANT_VALUE() \
const char *val = progargv[++i]; \
if (!val) { \
qemuReportError(VIR_ERR_INTERNAL_ERROR, \
_("missing value for %s argument"), arg); \
goto error; \
}
/* One initial loop to get list of NICs, so we
* can correlate them later */
for (i = 1 ; progargv[i] ; i++) {
const char *arg = progargv[i];
/* Make sure we have a single - for all options to
simplify next logic */
if (STRPREFIX(arg, "--"))
arg++;
if (STREQ(arg, "-net")) {
WANT_VALUE();
if (STRPREFIX(val, "nic")) {
if (VIR_REALLOC_N(nics, nnics+1) < 0)
goto no_memory;
nics[nnics++] = val;
}
}
}
/* Now the real processing loop */
for (i = 1 ; progargv[i] ; i++) {
const char *arg = progargv[i];
/* Make sure we have a single - for all options to
simplify next logic */
if (STRPREFIX(arg, "--"))
arg++;
if (STREQ(arg, "-vnc")) {
virDomainGraphicsDefPtr vnc;
char *tmp;
WANT_VALUE();
if (VIR_ALLOC(vnc) < 0)
goto no_memory;
vnc->type = VIR_DOMAIN_GRAPHICS_TYPE_VNC;
if (STRPREFIX(val, "unix:")) {
/* -vnc unix:/some/big/path */
vnc->data.vnc.socket = strdup(val + 5);
if (!vnc->data.vnc.socket) {
VIR_FREE(vnc);
goto no_memory;
}
} else {
/*
* -vnc 127.0.0.1:4
* -vnc [2001:1:2:3:4:5:1234:1234]:4
* -vnc some.host.name:4
*/
char *opts;
const char *sep = ":";
if (val[0] == '[')
sep = "]:";
tmp = strstr(val, sep);
if (!tmp) {
VIR_FREE(vnc);
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("missing VNC port number in '%s'"), val);
goto error;
}
if (virStrToLong_i(tmp+strlen(sep), &opts, 10,
&vnc->data.vnc.port) < 0) {
VIR_FREE(vnc);
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse VNC port '%s'"), tmp+1);
goto error;
}
if (val[0] == '[')
vnc->data.vnc.listenAddr = strndup(val+1, tmp-(val+1));
else
vnc->data.vnc.listenAddr = strndup(val, tmp-val);
if (!vnc->data.vnc.listenAddr) {
VIR_FREE(vnc);
goto no_memory;
}
vnc->data.vnc.port += 5900;
vnc->data.vnc.autoport = 0;
}
if (VIR_REALLOC_N(def->graphics, def->ngraphics+1) < 0) {
virDomainGraphicsDefFree(vnc);
goto no_memory;
}
def->graphics[def->ngraphics++] = vnc;
} else if (STREQ(arg, "-m")) {
int mem;
WANT_VALUE();
if (virStrToLong_i(val, NULL, 10, &mem) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, \
_("cannot parse memory level '%s'"), val);
goto error;
}
def->mem.cur_balloon = def->mem.max_balloon = mem * 1024;
} else if (STREQ(arg, "-smp")) {
WANT_VALUE();
if (qemuParseCommandLineSmp(def, val) < 0)
goto error;
} else if (STREQ(arg, "-uuid")) {
WANT_VALUE();
if (virUUIDParse(val, def->uuid) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, \
_("cannot parse UUID '%s'"), val);
goto error;
}
} else if (STRPREFIX(arg, "-hd") ||
STRPREFIX(arg, "-sd") ||
STRPREFIX(arg, "-fd") ||
STREQ(arg, "-cdrom")) {
WANT_VALUE();
virDomainDiskDefPtr disk;
if (VIR_ALLOC(disk) < 0)
goto no_memory;
if (STRPREFIX(val, "/dev/"))
disk->type = VIR_DOMAIN_DISK_TYPE_BLOCK;
else if (STRPREFIX(val, "nbd:")) {
disk->type = VIR_DOMAIN_DISK_TYPE_NETWORK;
disk->protocol = VIR_DOMAIN_DISK_PROTOCOL_NBD;
val += strlen("nbd:");
} else if (STRPREFIX(val, "rbd:")) {
disk->type = VIR_DOMAIN_DISK_TYPE_NETWORK;
disk->protocol = VIR_DOMAIN_DISK_PROTOCOL_RBD;
val += strlen("rbd:");
} else if (STRPREFIX(val, "sheepdog:")) {
disk->type = VIR_DOMAIN_DISK_TYPE_NETWORK;
disk->protocol = VIR_DOMAIN_DISK_PROTOCOL_SHEEPDOG;
val += strlen("sheepdog:");
} else
disk->type = VIR_DOMAIN_DISK_TYPE_FILE;
if (STREQ(arg, "-cdrom")) {
disk->device = VIR_DOMAIN_DISK_DEVICE_CDROM;
disk->dst = strdup("hdc");
disk->readonly = 1;
} else {
if (STRPREFIX(arg, "-fd")) {
disk->device = VIR_DOMAIN_DISK_DEVICE_FLOPPY;
disk->bus = VIR_DOMAIN_DISK_BUS_FDC;
} else {
disk->device = VIR_DOMAIN_DISK_DEVICE_DISK;
if (STRPREFIX(arg, "-hd"))
disk->bus = VIR_DOMAIN_DISK_BUS_IDE;
else
disk->bus = VIR_DOMAIN_DISK_BUS_SCSI;
}
disk->dst = strdup(arg + 1);
}
disk->src = strdup(val);
if (disk->type == VIR_DOMAIN_DISK_TYPE_NETWORK) {
char *host, *port;
switch (disk->protocol) {
case VIR_DOMAIN_DISK_PROTOCOL_NBD:
host = disk->src;
port = strchr(host, ':');
if (!port) {
def = NULL;
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse nbd filename '%s'"), disk->src);
goto error;
}
*port++ = '\0';
if (VIR_ALLOC(disk->hosts) < 0) {
virReportOOMError();
goto error;
}
disk->nhosts = 1;
disk->hosts->name = host;
disk->hosts->port = strdup(port);
if (!disk->hosts->port) {
virReportOOMError();
goto error;
}
disk->src = NULL;
break;
case VIR_DOMAIN_DISK_PROTOCOL_RBD:
/* handled later since the hosts for all disks are in CEPH_ARGS */
break;
case VIR_DOMAIN_DISK_PROTOCOL_SHEEPDOG:
/* disk->src must be [vdiname] or [host]:[port]:[vdiname] */
port = strchr(disk->src, ':');
if (port) {
char *vdi;
*port++ = '\0';
vdi = strchr(port, ':');
if (!vdi) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse sheepdog filename '%s'"), val);
goto error;
}
*vdi++ = '\0';
if (VIR_ALLOC(disk->hosts) < 0) {
virReportOOMError();
goto error;
}
disk->nhosts = 1;
disk->hosts->name = disk->src;
disk->hosts->port = strdup(port);
if (!disk->hosts->port) {
virReportOOMError();
goto error;
}
disk->src = strdup(vdi);
if (!disk->src) {
virReportOOMError();
goto error;
}
}
break;
}
}
if (!(disk->src || disk->nhosts > 0) ||
!disk->dst) {
virDomainDiskDefFree(disk);
goto no_memory;
}
if (virDomainDiskDefAssignAddress(caps, disk) < 0)
goto error;
if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) {
virDomainDiskDefFree(disk);
goto no_memory;
}
def->disks[def->ndisks++] = disk;
} else if (STREQ(arg, "-no-acpi")) {
def->features &= ~(1 << VIR_DOMAIN_FEATURE_ACPI);
} else if (STREQ(arg, "-no-reboot")) {
def->onReboot = VIR_DOMAIN_LIFECYCLE_DESTROY;
} else if (STREQ(arg, "-no-kvm")) {
def->virtType = VIR_DOMAIN_VIRT_QEMU;
} else if (STREQ(arg, "-nographic")) {
nographics = 1;
} else if (STREQ(arg, "-full-screen")) {
fullscreen = 1;
} else if (STREQ(arg, "-localtime")) {
def->clock.offset = VIR_DOMAIN_CLOCK_OFFSET_LOCALTIME;
} else if (STREQ(arg, "-kernel")) {
WANT_VALUE();
if (!(def->os.kernel = strdup(val)))
goto no_memory;
} else if (STREQ(arg, "-initrd")) {
WANT_VALUE();
if (!(def->os.initrd = strdup(val)))
goto no_memory;
} else if (STREQ(arg, "-append")) {
WANT_VALUE();
if (!(def->os.cmdline = strdup(val)))
goto no_memory;
} else if (STREQ(arg, "-boot")) {
int n, b = 0;
WANT_VALUE();
for (n = 0 ; val[n] && b < VIR_DOMAIN_BOOT_LAST ; n++) {
if (val[n] == 'a')
def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_FLOPPY;
else if (val[n] == 'c')
def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_DISK;
else if (val[n] == 'd')
def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_CDROM;
else if (val[n] == 'n')
def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_NET;
else if (val[n] == ',')
break;
}
def->os.nBootDevs = b;
if (strstr(val, "menu=on"))
def->os.bootmenu = 1;
} else if (STREQ(arg, "-name")) {
char *process;
WANT_VALUE();
process = strstr(val, ",process=");
if (process == NULL) {
if (!(def->name = strdup(val)))
goto no_memory;
} else {
if (!(def->name = strndup(val, process - val)))
goto no_memory;
}
} else if (STREQ(arg, "-M")) {
WANT_VALUE();
if (!(def->os.machine = strdup(val)))
goto no_memory;
} else if (STREQ(arg, "-serial")) {
WANT_VALUE();
if (STRNEQ(val, "none")) {
virDomainChrDefPtr chr;
if (!(chr = qemuParseCommandLineChr(val)))
goto error;
if (VIR_REALLOC_N(def->serials, def->nserials+1) < 0) {
virDomainChrDefFree(chr);
goto no_memory;
}
chr->deviceType = VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL;
chr->target.port = def->nserials;
def->serials[def->nserials++] = chr;
}
} else if (STREQ(arg, "-parallel")) {
WANT_VALUE();
if (STRNEQ(val, "none")) {
virDomainChrDefPtr chr;
if (!(chr = qemuParseCommandLineChr(val)))
goto error;
if (VIR_REALLOC_N(def->parallels, def->nparallels+1) < 0) {
virDomainChrDefFree(chr);
goto no_memory;
}
chr->deviceType = VIR_DOMAIN_CHR_DEVICE_TYPE_PARALLEL;
chr->target.port = def->nparallels;
def->parallels[def->nparallels++] = chr;
}
} else if (STREQ(arg, "-usbdevice")) {
WANT_VALUE();
if (STREQ(val, "tablet") ||
STREQ(val, "mouse")) {
virDomainInputDefPtr input;
if (VIR_ALLOC(input) < 0)
goto no_memory;
input->bus = VIR_DOMAIN_INPUT_BUS_USB;
if (STREQ(val, "tablet"))
input->type = VIR_DOMAIN_INPUT_TYPE_TABLET;
else
input->type = VIR_DOMAIN_INPUT_TYPE_MOUSE;
if (VIR_REALLOC_N(def->inputs, def->ninputs+1) < 0) {
virDomainInputDefFree(input);
goto no_memory;
}
def->inputs[def->ninputs++] = input;
} else if (STRPREFIX(val, "disk:")) {
virDomainDiskDefPtr disk;
if (VIR_ALLOC(disk) < 0)
goto no_memory;
disk->src = strdup(val + strlen("disk:"));
if (!disk->src) {
virDomainDiskDefFree(disk);
goto no_memory;
}
if (STRPREFIX(disk->src, "/dev/"))
disk->type = VIR_DOMAIN_DISK_TYPE_BLOCK;
else
disk->type = VIR_DOMAIN_DISK_TYPE_FILE;
disk->device = VIR_DOMAIN_DISK_DEVICE_DISK;
disk->bus = VIR_DOMAIN_DISK_BUS_USB;
if (!(disk->dst = strdup("sda"))) {
virDomainDiskDefFree(disk);
goto no_memory;
}
if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) {
virDomainDiskDefFree(disk);
goto no_memory;
}
def->disks[def->ndisks++] = disk;
} else {
virDomainHostdevDefPtr hostdev;
if (!(hostdev = qemuParseCommandLineUSB(val)))
goto error;
if (VIR_REALLOC_N(def->hostdevs, def->nhostdevs+1) < 0) {
virDomainHostdevDefFree(hostdev);
goto no_memory;
}
def->hostdevs[def->nhostdevs++] = hostdev;
}
} else if (STREQ(arg, "-net")) {
WANT_VALUE();
if (!STRPREFIX(val, "nic") && STRNEQ(val, "none")) {
virDomainNetDefPtr net;
if (!(net = qemuParseCommandLineNet(caps, val, nnics, nics)))
goto error;
if (VIR_REALLOC_N(def->nets, def->nnets+1) < 0) {
virDomainNetDefFree(net);
goto no_memory;
}
def->nets[def->nnets++] = net;
}
} else if (STREQ(arg, "-drive")) {
virDomainDiskDefPtr disk;
WANT_VALUE();
if (!(disk = qemuParseCommandLineDisk(caps, val, nvirtiodisk)))
goto error;
if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) {
virDomainDiskDefFree(disk);
goto no_memory;
}
def->disks[def->ndisks++] = disk;
if (disk->bus == VIR_DOMAIN_DISK_BUS_VIRTIO)
nvirtiodisk++;
} else if (STREQ(arg, "-pcidevice")) {
virDomainHostdevDefPtr hostdev;
WANT_VALUE();
if (!(hostdev = qemuParseCommandLinePCI(val)))
goto error;
if (VIR_REALLOC_N(def->hostdevs, def->nhostdevs+1) < 0) {
virDomainHostdevDefFree(hostdev);
goto no_memory;
}
def->hostdevs[def->nhostdevs++] = hostdev;
} else if (STREQ(arg, "-soundhw")) {
const char *start;
WANT_VALUE();
start = val;
while (start) {
const char *tmp = strchr(start, ',');
int type = -1;
if (STRPREFIX(start, "pcspk")) {
type = VIR_DOMAIN_SOUND_MODEL_PCSPK;
} else if (STRPREFIX(start, "sb16")) {
type = VIR_DOMAIN_SOUND_MODEL_SB16;
} else if (STRPREFIX(start, "es1370")) {
type = VIR_DOMAIN_SOUND_MODEL_ES1370;
} else if (STRPREFIX(start, "ac97")) {
type = VIR_DOMAIN_SOUND_MODEL_AC97;
} else if (STRPREFIX(start, "hda")) {
type = VIR_DOMAIN_SOUND_MODEL_ICH6;
}
if (type != -1) {
virDomainSoundDefPtr snd;
if (VIR_ALLOC(snd) < 0)
goto no_memory;
snd->model = type;
if (VIR_REALLOC_N(def->sounds, def->nsounds+1) < 0) {
VIR_FREE(snd);
goto no_memory;
}
def->sounds[def->nsounds++] = snd;
}
start = tmp ? tmp + 1 : NULL;
}
} else if (STREQ(arg, "-watchdog")) {
WANT_VALUE();
int model = virDomainWatchdogModelTypeFromString (val);
if (model != -1) {
virDomainWatchdogDefPtr wd;
if (VIR_ALLOC(wd) < 0)
goto no_memory;
wd->model = model;
wd->action = VIR_DOMAIN_WATCHDOG_ACTION_RESET;
def->watchdog = wd;
}
} else if (STREQ(arg, "-watchdog-action") && def->watchdog) {
WANT_VALUE();
int action = virDomainWatchdogActionTypeFromString (val);
if (action != -1)
def->watchdog->action = action;
} else if (STREQ(arg, "-bootloader")) {
WANT_VALUE();
def->os.bootloader = strdup(val);
if (!def->os.bootloader)
goto no_memory;
} else if (STREQ(arg, "-vmwarevga")) {
video = VIR_DOMAIN_VIDEO_TYPE_VMVGA;
} else if (STREQ(arg, "-std-vga")) {
video = VIR_DOMAIN_VIDEO_TYPE_VGA;
} else if (STREQ(arg, "-vga")) {
WANT_VALUE();
if (STRNEQ(val, "none")) {
video = qemuVideoTypeFromString(val);
if (video < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown video adapter type '%s'"), val);
goto error;
}
}
} else if (STREQ(arg, "-cpu")) {
WANT_VALUE();
if (qemuParseCommandLineCPU(def, val) < 0)
goto error;
} else if (STREQ(arg, "-domid")) {
WANT_VALUE();
/* ignore, generted on the fly */
} else if (STREQ(arg, "-usb")) {
/* ignore, always added by libvirt */
} else if (STREQ(arg, "-pidfile")) {
WANT_VALUE();
/* ignore, used by libvirt as needed */
} else if (STREQ(arg, "-incoming")) {
WANT_VALUE();
/* ignore, used via restore/migrate APIs */
} else if (STREQ(arg, "-monitor")) {
WANT_VALUE();
/* ignore, used internally by libvirt */
} else if (STREQ(arg, "-S")) {
/* ignore, always added by libvirt */
} else {
/* something we can't yet parse. Add it to the qemu namespace
* cmdline/environment advanced options and hope for the best
*/
VIR_WARN("unknown QEMU argument '%s', adding to the qemu namespace",
arg);
if (VIR_REALLOC_N(cmd->args, cmd->num_args+1) < 0)
goto no_memory;
cmd->args[cmd->num_args] = strdup(arg);
if (cmd->args[cmd->num_args] == NULL)
goto no_memory;
cmd->num_args++;
}
}
#undef WANT_VALUE
if (def->ndisks > 0) {
const char *ceph_args = qemuFindEnv(progenv, "CEPH_ARGS");
if (ceph_args) {
char *hosts, *port, *saveptr = NULL, *token;
virDomainDiskDefPtr first_rbd_disk = NULL;
for (i = 0 ; i < def->ndisks ; i++) {
virDomainDiskDefPtr disk = def->disks[i];
if (disk->type == VIR_DOMAIN_DISK_TYPE_NETWORK &&
disk->protocol == VIR_DOMAIN_DISK_PROTOCOL_RBD) {
first_rbd_disk = disk;
break;
}
}
if (!first_rbd_disk) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("CEPH_ARGS was set without an rbd disk"));
goto error;
}
/* CEPH_ARGS should be: -m host1[:port1][,host2[:port2]]... */
if (!STRPREFIX(ceph_args, "-m ")) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("could not parse CEPH_ARGS '%s'"), ceph_args);
goto error;
}
hosts = strdup(strchr(ceph_args, ' ') + 1);
if (!hosts)
goto no_memory;
first_rbd_disk->nhosts = 0;
token = strtok_r(hosts, ",", &saveptr);
while (token != NULL) {
if (VIR_REALLOC_N(first_rbd_disk->hosts, first_rbd_disk->nhosts + 1) < 0) {
VIR_FREE(hosts);
goto no_memory;
}
port = strchr(token, ':');
if (port) {
*port++ = '\0';
port = strdup(port);
if (!port) {
VIR_FREE(hosts);
goto no_memory;
}
}
first_rbd_disk->hosts[first_rbd_disk->nhosts].port = port;
first_rbd_disk->hosts[first_rbd_disk->nhosts].name = strdup(token);
if (!first_rbd_disk->hosts[first_rbd_disk->nhosts].name) {
VIR_FREE(hosts);
goto no_memory;
}
first_rbd_disk->nhosts++;
token = strtok_r(NULL, ",", &saveptr);
}
VIR_FREE(hosts);
if (first_rbd_disk->nhosts == 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("found no rbd hosts in CEPH_ARGS '%s'"), ceph_args);
goto error;
}
}
}
if (!nographics && def->ngraphics == 0) {
virDomainGraphicsDefPtr sdl;
const char *display = qemuFindEnv(progenv, "DISPLAY");
const char *xauth = qemuFindEnv(progenv, "XAUTHORITY");
if (VIR_ALLOC(sdl) < 0)
goto no_memory;
sdl->type = VIR_DOMAIN_GRAPHICS_TYPE_SDL;
sdl->data.sdl.fullscreen = fullscreen;
if (display &&
!(sdl->data.sdl.display = strdup(display))) {
VIR_FREE(sdl);
goto no_memory;
}
if (xauth &&
!(sdl->data.sdl.xauth = strdup(xauth))) {
VIR_FREE(sdl);
goto no_memory;
}
if (VIR_REALLOC_N(def->graphics, def->ngraphics+1) < 0) {
virDomainGraphicsDefFree(sdl);
goto no_memory;
}
def->graphics[def->ngraphics++] = sdl;
}
if (def->ngraphics) {
virDomainVideoDefPtr vid;
if (VIR_ALLOC(vid) < 0)
goto no_memory;
if (def->virtType == VIR_DOMAIN_VIRT_XEN)
vid->type = VIR_DOMAIN_VIDEO_TYPE_XEN;
else
vid->type = video;
vid->vram = virDomainVideoDefaultRAM(def, vid->type);
vid->heads = 1;
if (VIR_REALLOC_N(def->videos, def->nvideos+1) < 0) {
virDomainVideoDefFree(vid);
goto no_memory;
}
def->videos[def->nvideos++] = vid;
}
/*
* having a balloon is the default, define one with type="none" to avoid it
*/
if (!def->memballoon) {
virDomainMemballoonDefPtr memballoon;
if (VIR_ALLOC(memballoon) < 0)
goto no_memory;
memballoon->model = VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO;
def->memballoon = memballoon;
}
VIR_FREE(nics);
if (!def->name) {
if (!(def->name = strdup("unnamed")))
goto no_memory;
}
if (virDomainDefAddImplicitControllers(def) < 0)
goto error;
if (cmd->num_args || cmd->num_env) {
def->ns = caps->ns;
def->namespaceData = cmd;
}
else
VIR_FREE(cmd);
return def;
no_memory:
virReportOOMError();
error:
VIR_FREE(cmd);
virDomainDefFree(def);
VIR_FREE(nics);
return NULL;
}
virDomainDefPtr qemuParseCommandLineString(virCapsPtr caps,
const char *args)
{
const char **progenv = NULL;
const char **progargv = NULL;
virDomainDefPtr def = NULL;
int i;
if (qemuStringToArgvEnv(args, &progenv, &progargv) < 0)
goto cleanup;
def = qemuParseCommandLine(caps, progenv, progargv);
cleanup:
for (i = 0 ; progargv && progargv[i] ; i++)
VIR_FREE(progargv[i]);
VIR_FREE(progargv);
for (i = 0 ; progenv && progenv[i] ; i++)
VIR_FREE(progenv[i]);
VIR_FREE(progenv);
return def;
}
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