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10f94828ea
libvirt/src/qemu/qemu_capabilities.c
Michal Privoznik 10f94828ea virobject: Introduce VIR_CLASS_NEW() macro 
So far we are repeating the following lines over and over:

  if (!(virSomeObjectClass = virClassNew(virClassForObject(),
                             "virSomeObject",
                             sizeof(virSomeObject),
                             virSomeObjectDispose)))
      return -1;

While this works, it is impossible to do some checking. Firstly,
the class name (the 2nd argument) doesn't match the name in the
code in all cases (the 3rd argument). Secondly, the current style
is needlessly verbose. This commit turns example into following:

  if (!(VIR_CLASS_NEW(virSomeObject,
                      virClassForObject)))
      return -1;

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-04-18 10:04:55 +02:00

4853 lines
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/*
* qemu_capabilities.c: QEMU capabilities generation
*
* Copyright (C) 2006-2016 Red Hat, Inc.
* Copyright (C) 2006 Daniel P. Berrange
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include "qemu_capabilities.h"
#include "viralloc.h"
#include "vircrypto.h"
#include "virlog.h"
#include "virerror.h"
#include "virfile.h"
#include "virfilecache.h"
#include "virpidfile.h"
#include "virprocess.h"
#include "cpu/cpu.h"
#include "cpu/cpu_x86.h"
#include "domain_conf.h"
#include "vircommand.h"
#include "virbitmap.h"
#include "virnodesuspend.h"
#include "virnuma.h"
#include "virhostcpu.h"
#include "qemu_monitor.h"
#include "virstring.h"
#include "qemu_hostdev.h"
#include "qemu_domain.h"
#define __QEMU_CAPSPRIV_H_ALLOW__
#include "qemu_capspriv.h"
#include "qemu_qapi.h"
#include <fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/wait.h>
#include <stdarg.h>
#include <sys/utsname.h>
#define VIR_FROM_THIS VIR_FROM_QEMU
VIR_LOG_INIT("qemu.qemu_capabilities");
/* While not public, these strings must not change. They
* are used in domain status files which are read on
* daemon restarts
*/
VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST,
/* 0 */
"kqemu",
"vnc-colon",
"no-reboot",
"drive",
"drive-boot",
/* 5 */
"name",
"uuid",
"domid",
"vnet-hdr",
"migrate-kvm-stdio",
/* 10 */
"migrate-qemu-tcp",
"migrate-qemu-exec",
"drive-cache-v2",
"kvm",
"drive-format",
/* 15 */
"vga",
"0.10",
"pci-device",
"mem-path",
"drive-serial",
/* 20 */
"xen-domid",
"migrate-qemu-unix",
"chardev",
"enable-kvm",
"monitor-json",
/* 25 */
"balloon",
"device",
"sdl",
"smp-topology",
"netdev",
/* 30 */
"rtc",
"vhost-net",
"rtc-td-hack",
"no-hpet",
"no-kvm-pit",
/* 35 */
"tdf",
"pci-configfd",
"nodefconfig",
"boot-menu",
"enable-kqemu",
/* 40 */
"fsdev",
"nesting",
"name-process",
"drive-readonly",
"smbios-type",
/* 45 */
"vga-qxl",
"spice",
"vga-none",
"migrate-qemu-fd",
"boot-index",
/* 50 */
"hda-duplex",
"drive-aio",
"pci-multibus",
"pci-bootindex",
"ccid-emulated",
/* 55 */
"ccid-passthru",
"chardev-spicevmc",
"device-spicevmc",
"virtio-tx-alg",
"device-qxl-vga",
/* 60 */
"pci-multifunction",
"virtio-blk-pci.ioeventfd",
"sga",
"virtio-blk-pci.event_idx",
"virtio-net-pci.event_idx",
/* 65 */
"cache-directsync",
"piix3-usb-uhci",
"piix4-usb-uhci",
"usb-ehci",
"ich9-usb-ehci1",
/* 70 */
"vt82c686b-usb-uhci",
"pci-ohci",
"usb-redir",
"usb-hub",
"no-shutdown",
/* 75 */
"cache-unsafe",
"rombar",
"ich9-ahci",
"no-acpi",
"fsdev-readonly",
/* 80 */
"virtio-blk-pci.scsi",
"blk-sg-io",
"drive-copy-on-read",
"cpu-host",
"fsdev-writeout",
/* 85 */
"drive-iotune",
"system_wakeup",
"scsi-disk.channel",
"scsi-block",
"transaction",
/* 90 */
"block-job-sync",
"block-job-async",
"scsi-cd",
"ide-cd",
"no-user-config",
/* 95 */
"hda-micro",
"dump-guest-memory",
"nec-usb-xhci",
"virtio-s390",
"balloon-event",
/* 100 */
"bridge",
"lsi",
"virtio-scsi-pci",
"blockio",
"disable-s3",
/* 105 */
"disable-s4",
"usb-redir.filter",
"ide-drive.wwn",
"scsi-disk.wwn",
"seccomp-sandbox",
/* 110 */
"reboot-timeout",
"dump-guest-core",
"seamless-migration",
"block-commit",
"vnc",
/* 115 */
"drive-mirror",
"usb-redir.bootindex",
"usb-host.bootindex",
"blockdev-snapshot-sync",
"qxl",
/* 120 */
"VGA",
"cirrus-vga",
"vmware-svga",
"device-video-primary",
"s390-sclp",
/* 125 */
"usb-serial",
"usb-net",
"add-fd",
"nbd-server",
"virtio-rng",
/* 130 */
"rng-random",
"rng-egd",
"virtio-ccw",
"dtb",
"megasas",
/* 135 */
"ipv6-migration",
"machine-opt",
"machine-usb-opt",
"tpm-passthrough",
"tpm-tis",
/* 140 */
"nvram",
"pci-bridge",
"vfio-pci",
"vfio-pci.bootindex",
"scsi-generic",
/* 145 */
"scsi-generic.bootindex",
"mem-merge",
"vnc-websocket",
"drive-discard",
"mlock",
/* 150 */
"vnc-share-policy",
"device-del-event",
"dmi-to-pci-bridge",
"i440fx-pci-hole64-size",
"q35-pci-hole64-size",
/* 155 */
"usb-storage",
"usb-storage.removable",
"virtio-mmio",
"ich9-intel-hda",
"kvm-pit-lost-tick-policy",
/* 160 */
"boot-strict",
"pvpanic",
"enable-fips",
"spice-file-xfer-disable",
"spiceport",
/* 165 */
"usb-kbd",
"host-pci-multidomain",
"msg-timestamp",
"active-commit",
"change-backing-file",
/* 170 */
"memory-backend-ram",
"numa",
"memory-backend-file",
"usb-audio",
"rtc-reset-reinjection",
/* 175 */
"splash-timeout",
"iothread",
"migrate-rdma",
"ivshmem",
"drive-iotune-max",
/* 180 */
"VGA.vgamem_mb",
"vmware-svga.vgamem_mb",
"qxl.vgamem_mb",
"qxl-vga.vgamem_mb",
"pc-dimm",
/* 185 */
"machine-vmport-opt",
"aes-key-wrap",
"dea-key-wrap",
"pci-serial",
"aarch64-off",
/* 190 */
"vhost-user-multiqueue",
"migration-event",
"gpex-pcihost",
"ioh3420",
"x3130-upstream",
/* 195 */
"xio3130-downstream",
"rtl8139",
"e1000",
"virtio-net",
"gic-version",
/* 200 */
"incoming-defer",
"virtio-gpu",
"virtio-gpu.virgl",
"virtio-keyboard",
"virtio-mouse",
/* 205 */
"virtio-tablet",
"virtio-input-host",
"chardev-file-append",
"ich9-disable-s3",
"ich9-disable-s4",
/* 210 */
"vserport-change-event",
"virtio-balloon-pci.deflate-on-oom",
"mptsas1068",
"spice-gl",
"qxl.vram64_size_mb",
/* 215 */
"qxl-vga.vram64_size_mb",
"chardev-logfile",
"debug-threads",
"secret",
"pxb",
/* 220 */
"pxb-pcie",
"device-tray-moved-event",
"nec-usb-xhci-ports",
"virtio-scsi-pci.iothread",
"name-guest",
/* 225 */
"qxl.max_outputs",
"qxl-vga.max_outputs",
"spice-unix",
"drive-detect-zeroes",
"tls-creds-x509",
/* 230 */
"display",
"intel-iommu",
"smm",
"virtio-pci-disable-legacy",
"query-hotpluggable-cpus",
/* 235 */
"virtio-net.rx_queue_size",
"machine-iommu",
"virtio-vga",
"drive-iotune-max-length",
"ivshmem-plain",
/* 240 */
"ivshmem-doorbell",
"query-qmp-schema",
"gluster.debug_level",
"vhost-scsi",
"drive-iotune-group",
/* 245 */
"query-cpu-model-expansion",
"virtio-net.host_mtu",
"spice-rendernode",
"nvdimm",
"pcie-root-port",
/* 250 */
"query-cpu-definitions",
"block-write-threshold",
"query-named-block-nodes",
"cpu-cache",
"qemu-xhci",
/* 255 */
"kernel-irqchip",
"kernel-irqchip.split",
"intel-iommu.intremap",
"intel-iommu.caching-mode",
"intel-iommu.eim",
/* 260 */
"intel-iommu.device-iotlb",
"virtio.iommu_platform",
"virtio.ats",
"loadparm",
"spapr-pci-host-bridge",
/* 265 */
"spapr-pci-host-bridge.numa_node",
"vnc-multi-servers",
"virtio-net.tx_queue_size",
"chardev-reconnect",
"virtio-gpu.max_outputs",
/* 270 */
"vxhs",
"virtio-blk.num-queues",
"machine.pseries.resize-hpt",
"vmcoreinfo",
"spapr-vty",
/* 275 */
"sclplmconsole",
"numa.dist",
"disk-share-rw",
"iscsi.password-secret",
"isa-serial",
/* 280 */
"pl011",
"machine.pseries.max-cpu-compat",
"dump-completed",
"virtio-gpu-ccw",
"virtio-keyboard-ccw",
/* 285 */
"virtio-mouse-ccw",
"virtio-tablet-ccw",
"qcow2-luks",
"pcie-pci-bridge",
"seccomp-blacklist",
/* 290 */
"query-cpus-fast",
);
struct virQEMUCapsMachineType {
char *name;
char *alias;
unsigned int maxCpus;
bool hotplugCpus;
};
typedef struct _virQEMUCapsHostCPUData virQEMUCapsHostCPUData;
typedef virQEMUCapsHostCPUData *virQEMUCapsHostCPUDataPtr;
struct _virQEMUCapsHostCPUData {
/* Only the "info" part is stored in the capabilities cache, the rest is
* re-computed from other fields and external data sources everytime we
* probe QEMU or load the cache.
*/
qemuMonitorCPUModelInfoPtr info;
/* Host CPU definition reported in domain capabilities. */
virCPUDefPtr reported;
/* Migratable host CPU definition used for updating guest CPU. */
virCPUDefPtr migratable;
/* CPU definition with features detected by libvirt using virCPUGetHost
* combined with features reported by QEMU. This is used for backward
* compatible comparison between a guest CPU and a host CPU. */
virCPUDefPtr full;
};
/*
* Update the XML parser/formatter when adding more
* information to this struct so that it gets cached
* correctly. It does not have to be ABI-stable, as
* the cache will be discarded & repopulated if the
* timestamp on the libvirtd binary changes.
*
* And don't forget to update virQEMUCapsNewCopy.
*/
struct _virQEMUCaps {
virObject parent;
bool usedQMP;
char *binary;
time_t ctime;
time_t libvirtCtime;
virBitmapPtr flags;
unsigned int version;
unsigned int kvmVersion;
unsigned int libvirtVersion;
unsigned int microcodeVersion;
char *package;
char *kernelVersion;
virArch arch;
virDomainCapsCPUModelsPtr kvmCPUModels;
virDomainCapsCPUModelsPtr tcgCPUModels;
size_t nmachineTypes;
struct virQEMUCapsMachineType *machineTypes;
size_t ngicCapabilities;
virGICCapability *gicCapabilities;
virQEMUCapsHostCPUData kvmCPU;
virQEMUCapsHostCPUData tcgCPU;
};
struct virQEMUCapsSearchData {
virArch arch;
};
static virClassPtr virQEMUCapsClass;
static void virQEMUCapsDispose(void *obj);
static int virQEMUCapsOnceInit(void)
{
if (!VIR_CLASS_NEW(virQEMUCaps, virClassForObject()))
return -1;
return 0;
}
VIR_ONCE_GLOBAL_INIT(virQEMUCaps)
static virArch virQEMUCapsArchFromString(const char *arch)
{
if (STREQ(arch, "i386"))
return VIR_ARCH_I686;
if (STREQ(arch, "arm"))
return VIR_ARCH_ARMV7L;
if (STREQ(arch, "or32"))
return VIR_ARCH_OR32;
return virArchFromString(arch);
}
static const char *virQEMUCapsArchToString(virArch arch)
{
if (arch == VIR_ARCH_I686)
return "i386";
else if (arch == VIR_ARCH_ARMV7L)
return "arm";
else if (arch == VIR_ARCH_OR32)
return "or32";
return virArchToString(arch);
}
/* Checks whether a domain with @guest arch can run natively on @host.
*/
bool
virQEMUCapsGuestIsNative(virArch host,
virArch guest)
{
if (host == guest)
return true;
if (host == VIR_ARCH_X86_64 && guest == VIR_ARCH_I686)
return true;
if (host == VIR_ARCH_AARCH64 && guest == VIR_ARCH_ARMV7L)
return true;
if (ARCH_IS_PPC64(host) && ARCH_IS_PPC64(guest))
return true;
return false;
}
/* Given a host and guest architectures, find a suitable QEMU target.
*
* This is meant to be used as a second attempt if qemu-system-$guestarch
* can't be found, eg. on a x86_64 host you want to use qemu-system-i386,
* if available, instead of qemu-system-x86_64 to run i686 guests */
static virArch
virQEMUCapsFindTarget(virArch hostarch,
virArch guestarch)
{
if (virQEMUCapsGuestIsNative(hostarch, guestarch))
guestarch = hostarch;
/* Both ppc64 and ppc64le guests can use the ppc64 target */
if (ARCH_IS_PPC64(guestarch))
guestarch = VIR_ARCH_PPC64;
return guestarch;
}
static void
virQEMUCapsSetDefaultMachine(virQEMUCapsPtr qemuCaps,
size_t defIdx)
{
struct virQEMUCapsMachineType tmp = qemuCaps->machineTypes[defIdx];
memmove(qemuCaps->machineTypes + 1,
qemuCaps->machineTypes,
sizeof(qemuCaps->machineTypes[0]) * defIdx);
qemuCaps->machineTypes[0] = tmp;
}
static char *
virQEMUCapsFindBinary(const char *format,
const char *archstr)
{
char *ret = NULL;
char *binary = NULL;
if (virAsprintf(&binary, format, archstr) < 0)
return NULL;
ret = virFindFileInPath(binary);
VIR_FREE(binary);
return ret;
}
static char *
virQEMUCapsFindBinaryForArch(virArch hostarch,
virArch guestarch)
{
char *ret = NULL;
const char *archstr;
virArch target;
/* First attempt: try the guest architecture as it is */
archstr = virQEMUCapsArchToString(guestarch);
if ((ret = virQEMUCapsFindBinary("qemu-system-%s", archstr)) != NULL)
goto out;
/* Second attempt: try looking up by target instead */
target = virQEMUCapsFindTarget(hostarch, guestarch);
if (target != guestarch) {
archstr = virQEMUCapsArchToString(target);
if ((ret = virQEMUCapsFindBinary("qemu-system-%s", archstr)) != NULL)
goto out;
}
/* Third attempt, i686 only: try 'qemu' */
if (guestarch == VIR_ARCH_I686) {
if ((ret = virQEMUCapsFindBinary("%s", "qemu")) != NULL)
goto out;
}
out:
return ret;
}
static int
virQEMUCapsInitGuest(virCapsPtr caps,
virFileCachePtr cache,
virArch hostarch,
virArch guestarch)
{
size_t i;
char *kvmbin = NULL;
char *binary = NULL;
virQEMUCapsPtr qemubinCaps = NULL;
virQEMUCapsPtr kvmbinCaps = NULL;
int ret = -1;
/* Check for existence of base emulator, or alternate base
* which can be used with magic cpu choice
*/
binary = virQEMUCapsFindBinaryForArch(hostarch, guestarch);
/* Ignore binary if extracting version info fails */
if (binary) {
if (!(qemubinCaps = virQEMUCapsCacheLookup(cache, binary))) {
virResetLastError();
VIR_FREE(binary);
}
}
/* qemu-kvm/kvm binaries can only be used if
* - host & guest arches match
* - hostarch is x86_64 and guest arch is i686 (needs -cpu qemu32)
* - hostarch is aarch64 and guest arch is armv7l (needs -cpu aarch64=off)
* - hostarch and guestarch are both ppc64*
*/
if (virQEMUCapsGuestIsNative(hostarch, guestarch)) {
const char *kvmbins[] = {
"/usr/libexec/qemu-kvm", /* RHEL */
"qemu-kvm", /* Fedora */
"kvm", /* Debian/Ubuntu */
NULL,
};
/* x86 32-on-64 can be used with qemu-system-i386 and
* qemu-system-x86_64, so if we don't find a specific kvm binary,
* we can just fall back to the host arch native binary and
* everything works fine.
*
* arm is different in that 32-on-64 _only_ works with
* qemu-system-aarch64. So we have to add it to the kvmbins list
*/
if (hostarch == VIR_ARCH_AARCH64 && guestarch == VIR_ARCH_ARMV7L)
kvmbins[3] = "qemu-system-aarch64";
for (i = 0; i < ARRAY_CARDINALITY(kvmbins); ++i) {
if (!kvmbins[i])
continue;
kvmbin = virFindFileInPath(kvmbins[i]);
if (!kvmbin)
continue;
if (!(kvmbinCaps = virQEMUCapsCacheLookup(cache, kvmbin))) {
virResetLastError();
VIR_FREE(kvmbin);
continue;
}
if (!binary) {
binary = kvmbin;
qemubinCaps = kvmbinCaps;
kvmbin = NULL;
kvmbinCaps = NULL;
}
break;
}
}
ret = virQEMUCapsInitGuestFromBinary(caps,
binary, qemubinCaps,
kvmbin, kvmbinCaps,
guestarch);
VIR_FREE(binary);
VIR_FREE(kvmbin);
virObjectUnref(qemubinCaps);
virObjectUnref(kvmbinCaps);
return ret;
}
int
virQEMUCapsInitGuestFromBinary(virCapsPtr caps,
const char *binary,
virQEMUCapsPtr qemubinCaps,
const char *kvmbin,
virQEMUCapsPtr kvmbinCaps,
virArch guestarch)
{
virCapsGuestPtr guest;
bool haskvm = false;
virCapsGuestMachinePtr *machines = NULL;
size_t nmachines = 0;
int ret = -1;
bool hasdisksnapshot = false;
if (!binary)
return 0;
if (virFileExists("/dev/kvm") &&
(virQEMUCapsGet(qemubinCaps, QEMU_CAPS_KVM) ||
virQEMUCapsGet(qemubinCaps, QEMU_CAPS_ENABLE_KVM) ||
kvmbin))
haskvm = true;
if (virQEMUCapsGetMachineTypesCaps(qemubinCaps, &nmachines, &machines) < 0)
goto cleanup;
/* We register kvm as the base emulator too, since we can
* just give -no-kvm to disable acceleration if required */
if ((guest = virCapabilitiesAddGuest(caps,
VIR_DOMAIN_OSTYPE_HVM,
guestarch,
binary,
NULL,
nmachines,
machines)) == NULL)
goto cleanup;
machines = NULL;
nmachines = 0;
/* CPU selection is always available, because all QEMU versions
* we support can use at least '-cpu host' */
if (!virCapabilitiesAddGuestFeature(guest, "cpuselection", true, false))
goto cleanup;
if (virQEMUCapsGet(qemubinCaps, QEMU_CAPS_BOOTINDEX) &&
!virCapabilitiesAddGuestFeature(guest, "deviceboot", true, false))
goto cleanup;
if (virQEMUCapsGet(qemubinCaps, QEMU_CAPS_DISK_SNAPSHOT))
hasdisksnapshot = true;
if (!virCapabilitiesAddGuestFeature(guest, "disksnapshot", hasdisksnapshot,
false))
goto cleanup;
if (virCapabilitiesAddGuestDomain(guest,
VIR_DOMAIN_VIRT_QEMU,
NULL,
NULL,
0,
NULL) == NULL)
goto cleanup;
if (haskvm) {
virCapsGuestDomainPtr dom;
if (kvmbin &&
virQEMUCapsGetMachineTypesCaps(kvmbinCaps, &nmachines, &machines) < 0)
goto cleanup;
if ((dom = virCapabilitiesAddGuestDomain(guest,
VIR_DOMAIN_VIRT_KVM,
kvmbin ? kvmbin : binary,
NULL,
nmachines,
machines)) == NULL) {
goto cleanup;
}
machines = NULL;
nmachines = 0;
}
if ((ARCH_IS_X86(guestarch) || guestarch == VIR_ARCH_AARCH64) &&
virCapabilitiesAddGuestFeature(guest, "acpi", true, true) == NULL) {
goto cleanup;
}
if (ARCH_IS_X86(guestarch) &&
virCapabilitiesAddGuestFeature(guest, "apic", true, false) == NULL) {
goto cleanup;
}
if ((guestarch == VIR_ARCH_I686) &&
(virCapabilitiesAddGuestFeature(guest, "pae", true, false) == NULL ||
virCapabilitiesAddGuestFeature(guest, "nonpae", true, false) == NULL))
goto cleanup;
ret = 0;
cleanup:
virCapabilitiesFreeMachines(machines, nmachines);
return ret;
}
virCPUDefPtr
virQEMUCapsProbeHostCPUForEmulator(virArch hostArch,
virQEMUCapsPtr qemuCaps,
virDomainVirtType type)
{
return virCPUGetHost(hostArch, VIR_CPU_TYPE_GUEST, NULL,
virQEMUCapsGetCPUDefinitions(qemuCaps, type));
}
virCapsPtr
virQEMUCapsInit(virFileCachePtr cache)
{
virCapsPtr caps;
size_t i;
virArch hostarch = virArchFromHost();
if ((caps = virCapabilitiesNew(hostarch,
true, true)) == NULL)
goto error;
/* Some machines have problematic NUMA toplogy causing
* unexpected failures. We don't want to break the QEMU
* driver in this scenario, so log errors & carry on
*/
if (virCapabilitiesInitNUMA(caps) < 0) {
virCapabilitiesFreeNUMAInfo(caps);
VIR_WARN("Failed to query host NUMA topology, disabling NUMA capabilities");
}
if (virCapabilitiesInitCaches(caps) < 0)
VIR_WARN("Failed to get host CPU cache info");
if (!(caps->host.cpu = virCPUProbeHost(caps->host.arch)))
VIR_WARN("Failed to get host CPU");
/* Add the power management features of the host */
if (virNodeSuspendGetTargetMask(&caps->host.powerMgmt) < 0)
VIR_WARN("Failed to get host power management capabilities");
/* Add huge pages info */
if (virCapabilitiesInitPages(caps) < 0)
VIR_WARN("Failed to get pages info");
/* Add domain migration transport URIs */
virCapabilitiesAddHostMigrateTransport(caps, "tcp");
virCapabilitiesAddHostMigrateTransport(caps, "rdma");
/* QEMU can support pretty much every arch that exists,
* so just probe for them all - we gracefully fail
* if a qemu-system-$ARCH binary can't be found
*/
for (i = 0; i < VIR_ARCH_LAST; i++)
if (virQEMUCapsInitGuest(caps, cache,
hostarch,
i) < 0)
goto error;
return caps;
error:
virObjectUnref(caps);
return NULL;
}
struct virQEMUCapsStringFlags {
const char *value;
int flag;
};
struct virQEMUCapsStringFlags virQEMUCapsCommands[] = {
{ "transaction", QEMU_CAPS_TRANSACTION },
{ "block-stream", QEMU_CAPS_BLOCKJOB_ASYNC },
{ "dump-guest-memory", QEMU_CAPS_DUMP_GUEST_MEMORY },
{ "query-spice", QEMU_CAPS_SPICE },
{ "query-kvm", QEMU_CAPS_KVM },
{ "block-commit", QEMU_CAPS_BLOCK_COMMIT },
{ "query-vnc", QEMU_CAPS_VNC },
{ "drive-mirror", QEMU_CAPS_DRIVE_MIRROR },
{ "blockdev-snapshot-sync", QEMU_CAPS_DISK_SNAPSHOT },
{ "add-fd", QEMU_CAPS_ADD_FD },
{ "nbd-server-start", QEMU_CAPS_NBD_SERVER },
{ "change-backing-file", QEMU_CAPS_CHANGE_BACKING_FILE },
{ "rtc-reset-reinjection", QEMU_CAPS_RTC_RESET_REINJECTION },
{ "migrate-incoming", QEMU_CAPS_INCOMING_DEFER },
{ "query-hotpluggable-cpus", QEMU_CAPS_QUERY_HOTPLUGGABLE_CPUS },
{ "query-qmp-schema", QEMU_CAPS_QUERY_QMP_SCHEMA },
{ "query-cpu-model-expansion", QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION },
{ "query-cpu-definitions", QEMU_CAPS_QUERY_CPU_DEFINITIONS },
{ "query-named-block-nodes", QEMU_CAPS_QUERY_NAMED_BLOCK_NODES },
{ "query-cpus-fast", QEMU_CAPS_QUERY_CPUS_FAST },
};
struct virQEMUCapsStringFlags virQEMUCapsMigration[] = {
{ "rdma-pin-all", QEMU_CAPS_MIGRATE_RDMA },
};
struct virQEMUCapsStringFlags virQEMUCapsEvents[] = {
{ "BALLOON_CHANGE", QEMU_CAPS_BALLOON_EVENT },
{ "SPICE_MIGRATE_COMPLETED", QEMU_CAPS_SEAMLESS_MIGRATION },
{ "DEVICE_DELETED", QEMU_CAPS_DEVICE_DEL_EVENT },
{ "MIGRATION", QEMU_CAPS_MIGRATION_EVENT },
{ "VSERPORT_CHANGE", QEMU_CAPS_VSERPORT_CHANGE },
{ "DEVICE_TRAY_MOVED", QEMU_CAPS_DEVICE_TRAY_MOVED },
{ "BLOCK_WRITE_THRESHOLD", QEMU_CAPS_BLOCK_WRITE_THRESHOLD },
{ "DUMP_COMPLETED", QEMU_CAPS_DUMP_COMPLETED },
};
struct virQEMUCapsStringFlags virQEMUCapsObjectTypes[] = {
{ "hda-duplex", QEMU_CAPS_HDA_DUPLEX },
{ "hda-micro", QEMU_CAPS_HDA_MICRO },
{ "ccid-card-emulated", QEMU_CAPS_CCID_EMULATED },
{ "ccid-card-passthru", QEMU_CAPS_CCID_PASSTHRU },
{ "piix3-usb-uhci", QEMU_CAPS_PIIX3_USB_UHCI },
{ "piix4-usb-uhci", QEMU_CAPS_PIIX4_USB_UHCI },
{ "usb-ehci", QEMU_CAPS_USB_EHCI },
{ "ich9-usb-ehci1", QEMU_CAPS_ICH9_USB_EHCI1 },
{ "vt82c686b-usb-uhci", QEMU_CAPS_VT82C686B_USB_UHCI },
{ "pci-ohci", QEMU_CAPS_PCI_OHCI },
{ "nec-usb-xhci", QEMU_CAPS_NEC_USB_XHCI },
{ "usb-redir", QEMU_CAPS_USB_REDIR },
{ "usb-hub", QEMU_CAPS_USB_HUB },
{ "ich9-ahci", QEMU_CAPS_ICH9_AHCI },
{ "virtio-blk-s390", QEMU_CAPS_VIRTIO_S390 },
{ "virtio-blk-ccw", QEMU_CAPS_VIRTIO_CCW },
{ "sclpconsole", QEMU_CAPS_DEVICE_SCLPCONSOLE },
{ "lsi53c895a", QEMU_CAPS_SCSI_LSI },
{ "virtio-scsi-pci", QEMU_CAPS_VIRTIO_SCSI },
{ "virtio-scsi-s390", QEMU_CAPS_VIRTIO_SCSI },
{ "virtio-scsi-ccw", QEMU_CAPS_VIRTIO_SCSI },
{ "virtio-scsi-device", QEMU_CAPS_VIRTIO_SCSI },
{ "megasas", QEMU_CAPS_SCSI_MEGASAS },
{ "qxl", QEMU_CAPS_DEVICE_QXL },
{ "sga", QEMU_CAPS_SGA },
{ "scsi-block", QEMU_CAPS_SCSI_BLOCK },
{ "scsi-cd", QEMU_CAPS_SCSI_CD },
{ "ide-cd", QEMU_CAPS_IDE_CD },
{ "VGA", QEMU_CAPS_DEVICE_VGA },
{ "cirrus-vga", QEMU_CAPS_DEVICE_CIRRUS_VGA },
{ "vmware-svga", QEMU_CAPS_DEVICE_VMWARE_SVGA },
{ "usb-serial", QEMU_CAPS_DEVICE_USB_SERIAL },
{ "usb-net", QEMU_CAPS_DEVICE_USB_NET },
{ "virtio-rng-pci", QEMU_CAPS_DEVICE_VIRTIO_RNG },
{ "virtio-rng-s390", QEMU_CAPS_DEVICE_VIRTIO_RNG },
{ "virtio-rng-ccw", QEMU_CAPS_DEVICE_VIRTIO_RNG },
{ "virtio-rng-device", QEMU_CAPS_DEVICE_VIRTIO_RNG },
{ "rng-random", QEMU_CAPS_OBJECT_RNG_RANDOM },
{ "rng-egd", QEMU_CAPS_OBJECT_RNG_EGD },
{ "spapr-nvram", QEMU_CAPS_DEVICE_NVRAM },
{ "pci-bridge", QEMU_CAPS_DEVICE_PCI_BRIDGE },
{ "vfio-pci", QEMU_CAPS_DEVICE_VFIO_PCI },
{ "scsi-generic", QEMU_CAPS_DEVICE_SCSI_GENERIC },
{ "i82801b11-bridge", QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE },
{ "usb-storage", QEMU_CAPS_DEVICE_USB_STORAGE },
{ "virtio-mmio", QEMU_CAPS_DEVICE_VIRTIO_MMIO },
{ "ich9-intel-hda", QEMU_CAPS_DEVICE_ICH9_INTEL_HDA },
{ "pvpanic", QEMU_CAPS_DEVICE_PANIC },
{ "usb-kbd", QEMU_CAPS_DEVICE_USB_KBD },
{ "memory-backend-ram", QEMU_CAPS_OBJECT_MEMORY_RAM },
{ "memory-backend-file", QEMU_CAPS_OBJECT_MEMORY_FILE },
{ "usb-audio", QEMU_CAPS_OBJECT_USB_AUDIO },
{ "iothread", QEMU_CAPS_OBJECT_IOTHREAD},
{ "ivshmem", QEMU_CAPS_DEVICE_IVSHMEM },
{ "pc-dimm", QEMU_CAPS_DEVICE_PC_DIMM },
{ "pci-serial", QEMU_CAPS_DEVICE_PCI_SERIAL },
{ "gpex-pcihost", QEMU_CAPS_OBJECT_GPEX},
{ "ioh3420", QEMU_CAPS_DEVICE_IOH3420 },
{ "x3130-upstream", QEMU_CAPS_DEVICE_X3130_UPSTREAM },
{ "xio3130-downstream", QEMU_CAPS_DEVICE_XIO3130_DOWNSTREAM },
{ "rtl8139", QEMU_CAPS_DEVICE_RTL8139 },
{ "e1000", QEMU_CAPS_DEVICE_E1000 },
{ "virtio-net-pci", QEMU_CAPS_DEVICE_VIRTIO_NET },
{ "virtio-net-ccw", QEMU_CAPS_DEVICE_VIRTIO_NET },
{ "virtio-net-s390", QEMU_CAPS_DEVICE_VIRTIO_NET },
{ "virtio-net-device", QEMU_CAPS_DEVICE_VIRTIO_NET },
{ "virtio-gpu-pci", QEMU_CAPS_DEVICE_VIRTIO_GPU },
{ "virtio-gpu-device", QEMU_CAPS_DEVICE_VIRTIO_GPU },
{ "virtio-vga", QEMU_CAPS_DEVICE_VIRTIO_VGA },
{ "virtio-keyboard-device", QEMU_CAPS_VIRTIO_KEYBOARD },
{ "virtio-keyboard-pci", QEMU_CAPS_VIRTIO_KEYBOARD },
{ "virtio-mouse-device", QEMU_CAPS_VIRTIO_MOUSE },
{ "virtio-mouse-pci", QEMU_CAPS_VIRTIO_MOUSE },
{ "virtio-tablet-device", QEMU_CAPS_VIRTIO_TABLET },
{ "virtio-tablet-pci", QEMU_CAPS_VIRTIO_TABLET },
{ "virtio-input-host-device", QEMU_CAPS_VIRTIO_INPUT_HOST },
{ "virtio-input-host-pci", QEMU_CAPS_VIRTIO_INPUT_HOST },
{ "mptsas1068", QEMU_CAPS_SCSI_MPTSAS1068 },
{ "secret", QEMU_CAPS_OBJECT_SECRET },
{ "pxb", QEMU_CAPS_DEVICE_PXB },
{ "pxb-pcie", QEMU_CAPS_DEVICE_PXB_PCIE },
{ "tls-creds-x509", QEMU_CAPS_OBJECT_TLS_CREDS_X509 },
{ "intel-iommu", QEMU_CAPS_DEVICE_INTEL_IOMMU },
{ "ivshmem-plain", QEMU_CAPS_DEVICE_IVSHMEM_PLAIN },
{ "ivshmem-doorbell", QEMU_CAPS_DEVICE_IVSHMEM_DOORBELL },
{ "vhost-scsi", QEMU_CAPS_DEVICE_VHOST_SCSI },
{ "nvdimm", QEMU_CAPS_DEVICE_NVDIMM },
{ "pcie-root-port", QEMU_CAPS_DEVICE_PCIE_ROOT_PORT },
{ "qemu-xhci", QEMU_CAPS_DEVICE_QEMU_XHCI },
{ "spapr-pci-host-bridge", QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE },
{ "vmcoreinfo", QEMU_CAPS_DEVICE_VMCOREINFO },
{ "spapr-vty", QEMU_CAPS_DEVICE_SPAPR_VTY },
{ "sclplmconsole", QEMU_CAPS_DEVICE_SCLPLMCONSOLE },
{ "isa-serial", QEMU_CAPS_DEVICE_ISA_SERIAL },
{ "pl011", QEMU_CAPS_DEVICE_PL011 },
{ "virtio-gpu-ccw", QEMU_CAPS_DEVICE_VIRTIO_GPU_CCW },
{ "virtio-keyboard-ccw", QEMU_CAPS_DEVICE_VIRTIO_KEYBOARD_CCW },
{ "virtio-mouse-ccw", QEMU_CAPS_DEVICE_VIRTIO_MOUSE_CCW },
{ "virtio-tablet-ccw", QEMU_CAPS_DEVICE_VIRTIO_TABLET_CCW },
{ "pcie-pci-bridge", QEMU_CAPS_DEVICE_PCIE_PCI_BRIDGE },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVirtioBalloon[] = {
{ "deflate-on-oom", QEMU_CAPS_VIRTIO_BALLOON_AUTODEFLATE },
{ "disable-legacy", QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY },
{ "iommu_platform", QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM },
{ "ats", QEMU_CAPS_VIRTIO_PCI_ATS },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVirtioBlk[] = {
{ "bootindex", QEMU_CAPS_BOOTINDEX },
{ "ioeventfd", QEMU_CAPS_VIRTIO_IOEVENTFD },
{ "event_idx", QEMU_CAPS_VIRTIO_BLK_EVENT_IDX },
{ "scsi", QEMU_CAPS_VIRTIO_BLK_SCSI },
{ "logical_block_size", QEMU_CAPS_BLOCKIO },
{ "num-queues", QEMU_CAPS_VIRTIO_BLK_NUM_QUEUES },
{ "share-rw", QEMU_CAPS_DISK_SHARE_RW },
{ "disable-legacy", QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY },
{ "iommu_platform", QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM },
{ "ats", QEMU_CAPS_VIRTIO_PCI_ATS },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVirtioNet[] = {
{ "tx", QEMU_CAPS_VIRTIO_TX_ALG },
{ "event_idx", QEMU_CAPS_VIRTIO_NET_EVENT_IDX },
{ "rx_queue_size", QEMU_CAPS_VIRTIO_NET_RX_QUEUE_SIZE },
{ "tx_queue_size", QEMU_CAPS_VIRTIO_NET_TX_QUEUE_SIZE },
{ "host_mtu", QEMU_CAPS_VIRTIO_NET_HOST_MTU },
{ "disable-legacy", QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY },
{ "iommu_platform", QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM },
{ "ats", QEMU_CAPS_VIRTIO_PCI_ATS },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsSpaprPCIHostBridge[] = {
{ "numa_node", QEMU_CAPS_SPAPR_PCI_HOST_BRIDGE_NUMA_NODE },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVirtioSCSI[] = {
{ "iothread", QEMU_CAPS_VIRTIO_SCSI_IOTHREAD },
{ "disable-legacy", QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY },
{ "iommu_platform", QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM },
{ "ats", QEMU_CAPS_VIRTIO_PCI_ATS },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsPCIAssign[] = {
{ "configfd", QEMU_CAPS_PCI_CONFIGFD },
{ "bootindex", QEMU_CAPS_PCI_BOOTINDEX },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVfioPCI[] = {
{ "bootindex", QEMU_CAPS_VFIO_PCI_BOOTINDEX },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsSCSIDisk[] = {
{ "channel", QEMU_CAPS_SCSI_DISK_CHANNEL },
{ "wwn", QEMU_CAPS_SCSI_DISK_WWN },
{ "share-rw", QEMU_CAPS_DISK_SHARE_RW },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsIDEDrive[] = {
{ "wwn", QEMU_CAPS_IDE_DRIVE_WWN },
{ "share-rw", QEMU_CAPS_DISK_SHARE_RW },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsPiix4PM[] = {
{ "disable_s3", QEMU_CAPS_PIIX_DISABLE_S3 },
{ "disable_s4", QEMU_CAPS_PIIX_DISABLE_S4 },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsUSBRedir[] = {
{ "filter", QEMU_CAPS_USB_REDIR_FILTER },
{ "bootindex", QEMU_CAPS_USB_REDIR_BOOTINDEX },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsUSBHost[] = {
{ "bootindex", QEMU_CAPS_USB_HOST_BOOTINDEX },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsSCSIGeneric[] = {
{ "bootindex", QEMU_CAPS_DEVICE_SCSI_GENERIC_BOOTINDEX },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsI440FXPCIHost[] = {
{ "pci-hole64-size", QEMU_CAPS_I440FX_PCI_HOLE64_SIZE },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsQ35PCIHost[] = {
{ "pci-hole64-size", QEMU_CAPS_Q35_PCI_HOLE64_SIZE },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsUSBStorage[] = {
{ "removable", QEMU_CAPS_USB_STORAGE_REMOVABLE },
{ "share-rw", QEMU_CAPS_DISK_SHARE_RW },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsKVMPit[] = {
{ "lost_tick_policy", QEMU_CAPS_KVM_PIT_TICK_POLICY },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVGA[] = {
{ "vgamem_mb", QEMU_CAPS_VGA_VGAMEM },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVmwareSvga[] = {
{ "vgamem_mb", QEMU_CAPS_VMWARE_SVGA_VGAMEM },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsQxl[] = {
{ "vgamem_mb", QEMU_CAPS_QXL_VGAMEM },
{ "vram64_size_mb", QEMU_CAPS_QXL_VRAM64 },
{ "max_outputs", QEMU_CAPS_QXL_MAX_OUTPUTS },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVirtioGpu[] = {
{ "virgl", QEMU_CAPS_VIRTIO_GPU_VIRGL },
{ "max_outputs", QEMU_CAPS_VIRTIO_GPU_MAX_OUTPUTS },
{ "disable-legacy", QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY },
{ "iommu_platform", QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM },
{ "ats", QEMU_CAPS_VIRTIO_PCI_ATS },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsICH9[] = {
{ "disable_s3", QEMU_CAPS_ICH9_DISABLE_S3 },
{ "disable_s4", QEMU_CAPS_ICH9_DISABLE_S4 },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsUSBNECXHCI[] = {
{ "p3", QEMU_CAPS_NEC_USB_XHCI_PORTS },
};
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsIntelIOMMU[] = {
{ "intremap", QEMU_CAPS_INTEL_IOMMU_INTREMAP },
{ "caching-mode", QEMU_CAPS_INTEL_IOMMU_CACHING_MODE },
{ "eim", QEMU_CAPS_INTEL_IOMMU_EIM },
{ "device-iotlb", QEMU_CAPS_INTEL_IOMMU_DEVICE_IOTLB },
};
/* see documentation for virQEMUQAPISchemaPathGet for the query format */
static struct virQEMUCapsStringFlags virQEMUCapsQMPSchemaQueries[] = {
{ "blockdev-add/arg-type/options/+gluster/debug-level", QEMU_CAPS_GLUSTER_DEBUG_LEVEL},
{ "blockdev-add/arg-type/+gluster/debug", QEMU_CAPS_GLUSTER_DEBUG_LEVEL},
{ "blockdev-add/arg-type/+vxhs", QEMU_CAPS_VXHS},
{ "blockdev-add/arg-type/+iscsi/password-secret", QEMU_CAPS_ISCSI_PASSWORD_SECRET },
{ "blockdev-add/arg-type/+qcow2/encrypt/+luks/key-secret", QEMU_CAPS_QCOW2_LUKS },
};
struct virQEMUCapsObjectTypeProps {
const char *type;
struct virQEMUCapsStringFlags *props;
size_t nprops;
int capsCondition;
};
static struct virQEMUCapsObjectTypeProps virQEMUCapsObjectProps[] = {
{ "virtio-blk-pci", virQEMUCapsObjectPropsVirtioBlk,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioBlk),
-1 },
{ "virtio-net-pci", virQEMUCapsObjectPropsVirtioNet,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioNet),
QEMU_CAPS_DEVICE_VIRTIO_NET },
{ "virtio-scsi-pci", virQEMUCapsObjectPropsVirtioSCSI,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioSCSI),
QEMU_CAPS_VIRTIO_SCSI },
{ "virtio-blk-ccw", virQEMUCapsObjectPropsVirtioBlk,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioBlk),
QEMU_CAPS_VIRTIO_CCW },
{ "virtio-net-ccw", virQEMUCapsObjectPropsVirtioNet,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioNet),
QEMU_CAPS_DEVICE_VIRTIO_NET },
{ "virtio-scsi-ccw", virQEMUCapsObjectPropsVirtioSCSI,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioSCSI),
QEMU_CAPS_VIRTIO_SCSI },
{ "virtio-blk-s390", virQEMUCapsObjectPropsVirtioBlk,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioBlk),
QEMU_CAPS_VIRTIO_S390 },
{ "virtio-net-s390", virQEMUCapsObjectPropsVirtioNet,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioNet),
QEMU_CAPS_DEVICE_VIRTIO_NET },
{ "pci-assign", virQEMUCapsObjectPropsPCIAssign,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsPCIAssign),
-1 },
{ "kvm-pci-assign", virQEMUCapsObjectPropsPCIAssign,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsPCIAssign),
-1 },
{ "vfio-pci", virQEMUCapsObjectPropsVfioPCI,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVfioPCI),
QEMU_CAPS_DEVICE_VFIO_PCI },
{ "scsi-disk", virQEMUCapsObjectPropsSCSIDisk,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsSCSIDisk),
-1 },
{ "ide-drive", virQEMUCapsObjectPropsIDEDrive,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsIDEDrive),
-1 },
{ "PIIX4_PM", virQEMUCapsObjectPropsPiix4PM,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsPiix4PM),
-1 },
{ "usb-redir", virQEMUCapsObjectPropsUSBRedir,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsUSBRedir),
QEMU_CAPS_USB_REDIR },
{ "usb-host", virQEMUCapsObjectPropsUSBHost,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsUSBHost),
-1 },
{ "scsi-generic", virQEMUCapsObjectPropsSCSIGeneric,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsSCSIGeneric),
QEMU_CAPS_DEVICE_SCSI_GENERIC },
{ "i440FX-pcihost", virQEMUCapsObjectPropsI440FXPCIHost,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsI440FXPCIHost),
-1 },
{ "q35-pcihost", virQEMUCapsObjectPropsQ35PCIHost,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsQ35PCIHost),
-1 },
{ "usb-storage", virQEMUCapsObjectPropsUSBStorage,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsUSBStorage),
QEMU_CAPS_DEVICE_USB_STORAGE },
{ "kvm-pit", virQEMUCapsObjectPropsKVMPit,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsKVMPit),
-1 },
{ "VGA", virQEMUCapsObjectPropsVGA,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVGA),
QEMU_CAPS_DEVICE_VGA },
{ "vmware-svga", virQEMUCapsObjectPropsVmwareSvga,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVmwareSvga),
QEMU_CAPS_DEVICE_VMWARE_SVGA },
{ "qxl", virQEMUCapsObjectPropsQxl,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsQxl),
QEMU_CAPS_DEVICE_QXL },
{ "virtio-gpu-pci", virQEMUCapsObjectPropsVirtioGpu,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioGpu),
QEMU_CAPS_DEVICE_VIRTIO_GPU },
{ "virtio-gpu-device", virQEMUCapsObjectPropsVirtioGpu,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioGpu),
QEMU_CAPS_DEVICE_VIRTIO_GPU },
{ "ICH9-LPC", virQEMUCapsObjectPropsICH9,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsICH9),
-1 },
{ "virtio-balloon-pci", virQEMUCapsObjectPropsVirtioBalloon,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioBalloon),
-1 },
{ "virtio-balloon-ccw", virQEMUCapsObjectPropsVirtioBalloon,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioBalloon),
-1 },
{ "virtio-balloon-device", virQEMUCapsObjectPropsVirtioBalloon,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioBalloon),
-1 },
{ "nec-usb-xhci", virQEMUCapsObjectPropsUSBNECXHCI,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsUSBNECXHCI),
QEMU_CAPS_NEC_USB_XHCI },
{ "intel-iommu", virQEMUCapsObjectPropsIntelIOMMU,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsIntelIOMMU),
QEMU_CAPS_DEVICE_INTEL_IOMMU },
{ "spapr-pci-host-bridge", virQEMUCapsObjectPropsSpaprPCIHostBridge,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsSpaprPCIHostBridge),
QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE },
{ "virtio-gpu-ccw", virQEMUCapsObjectPropsVirtioGpu,
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioGpu),
QEMU_CAPS_DEVICE_VIRTIO_GPU_CCW },
};
static void
virQEMUCapsProcessStringFlags(virQEMUCapsPtr qemuCaps,
size_t nflags,
struct virQEMUCapsStringFlags *flags,
size_t nvalues,
char *const*values)
{
size_t i, j;
for (i = 0; i < nflags; i++) {
if (virQEMUCapsGet(qemuCaps, flags[i].flag))
continue;
for (j = 0; j < nvalues; j++) {
if (STREQ(values[j], flags[i].value)) {
virQEMUCapsSet(qemuCaps, flags[i].flag);
break;
}
}
}
}
int virQEMUCapsGetDefaultVersion(virCapsPtr caps,
virFileCachePtr capsCache,
unsigned int *version)
{
virQEMUCapsPtr qemucaps;
virArch hostarch;
virCapsDomainDataPtr capsdata;
if (*version > 0)
return 0;
hostarch = virArchFromHost();
if (!(capsdata = virCapabilitiesDomainDataLookup(caps,
VIR_DOMAIN_OSTYPE_HVM, hostarch, VIR_DOMAIN_VIRT_QEMU,
NULL, NULL))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Cannot find suitable emulator for %s"),
virArchToString(hostarch));
return -1;
}
qemucaps = virQEMUCapsCacheLookup(capsCache, capsdata->emulator);
VIR_FREE(capsdata);
if (!qemucaps)
return -1;
*version = virQEMUCapsGetVersion(qemucaps);
virObjectUnref(qemucaps);
return 0;
}
virQEMUCapsPtr
virQEMUCapsNew(void)
{
virQEMUCapsPtr qemuCaps;
if (virQEMUCapsInitialize() < 0)
return NULL;
if (!(qemuCaps = virObjectNew(virQEMUCapsClass)))
return NULL;
if (!(qemuCaps->flags = virBitmapNew(QEMU_CAPS_LAST)))
goto error;
return qemuCaps;
error:
virObjectUnref(qemuCaps);
return NULL;
}
static int
virQEMUCapsHostCPUDataCopy(virQEMUCapsHostCPUDataPtr dst,
virQEMUCapsHostCPUDataPtr src)
{
if (src->info &&
!(dst->info = qemuMonitorCPUModelInfoCopy(src->info)))
return -1;
if (src->reported &&
!(dst->reported = virCPUDefCopy(src->reported)))
return -1;
if (src->migratable &&
!(dst->migratable = virCPUDefCopy(src->migratable)))
return -1;
if (src->full &&
!(dst->full = virCPUDefCopy(src->full)))
return -1;
return 0;
}
static void
virQEMUCapsHostCPUDataClear(virQEMUCapsHostCPUDataPtr cpuData)
{
qemuMonitorCPUModelInfoFree(cpuData->info);
virCPUDefFree(cpuData->reported);
virCPUDefFree(cpuData->migratable);
virCPUDefFree(cpuData->full);
memset(cpuData, 0, sizeof(*cpuData));
}
virQEMUCapsPtr virQEMUCapsNewCopy(virQEMUCapsPtr qemuCaps)
{
virQEMUCapsPtr ret = virQEMUCapsNew();
size_t i;
if (!ret)
return NULL;
ret->usedQMP = qemuCaps->usedQMP;
if (VIR_STRDUP(ret->binary, qemuCaps->binary) < 0)
goto error;
ret->ctime = qemuCaps->ctime;
virBitmapCopy(ret->flags, qemuCaps->flags);
ret->version = qemuCaps->version;
ret->kvmVersion = qemuCaps->kvmVersion;
ret->microcodeVersion = qemuCaps->microcodeVersion;
if (VIR_STRDUP(ret->package, qemuCaps->package) < 0)
goto error;
if (VIR_STRDUP(ret->kernelVersion, qemuCaps->kernelVersion) < 0)
goto error;
ret->arch = qemuCaps->arch;
if (qemuCaps->kvmCPUModels) {
ret->kvmCPUModels = virDomainCapsCPUModelsCopy(qemuCaps->kvmCPUModels);
if (!ret->kvmCPUModels)
goto error;
}
if (qemuCaps->tcgCPUModels) {
ret->tcgCPUModels = virDomainCapsCPUModelsCopy(qemuCaps->tcgCPUModels);
if (!ret->tcgCPUModels)
goto error;
}
if (virQEMUCapsHostCPUDataCopy(&ret->kvmCPU, &qemuCaps->kvmCPU) < 0 ||
virQEMUCapsHostCPUDataCopy(&ret->tcgCPU, &qemuCaps->tcgCPU) < 0)
goto error;
if (VIR_ALLOC_N(ret->machineTypes, qemuCaps->nmachineTypes) < 0)
goto error;
ret->nmachineTypes = qemuCaps->nmachineTypes;
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
if (VIR_STRDUP(ret->machineTypes[i].name, qemuCaps->machineTypes[i].name) < 0 ||
VIR_STRDUP(ret->machineTypes[i].alias, qemuCaps->machineTypes[i].alias) < 0)
goto error;
ret->machineTypes[i].maxCpus = qemuCaps->machineTypes[i].maxCpus;
ret->machineTypes[i].hotplugCpus = qemuCaps->machineTypes[i].hotplugCpus;
}
if (VIR_ALLOC_N(ret->gicCapabilities, qemuCaps->ngicCapabilities) < 0)
goto error;
ret->ngicCapabilities = qemuCaps->ngicCapabilities;
for (i = 0; i < qemuCaps->ngicCapabilities; i++)
ret->gicCapabilities[i] = qemuCaps->gicCapabilities[i];
return ret;
error:
virObjectUnref(ret);
return NULL;
}
void virQEMUCapsDispose(void *obj)
{
virQEMUCapsPtr qemuCaps = obj;
size_t i;
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
VIR_FREE(qemuCaps->machineTypes[i].name);
VIR_FREE(qemuCaps->machineTypes[i].alias);
}
VIR_FREE(qemuCaps->machineTypes);
virObjectUnref(qemuCaps->kvmCPUModels);
virObjectUnref(qemuCaps->tcgCPUModels);
virBitmapFree(qemuCaps->flags);
VIR_FREE(qemuCaps->package);
VIR_FREE(qemuCaps->kernelVersion);
VIR_FREE(qemuCaps->binary);
VIR_FREE(qemuCaps->gicCapabilities);
virQEMUCapsHostCPUDataClear(&qemuCaps->kvmCPU);
virQEMUCapsHostCPUDataClear(&qemuCaps->tcgCPU);
}
void
virQEMUCapsSet(virQEMUCapsPtr qemuCaps,
virQEMUCapsFlags flag)
{
ignore_value(virBitmapSetBit(qemuCaps->flags, flag));
}
void
virQEMUCapsSetList(virQEMUCapsPtr qemuCaps, ...)
{
va_list list;
int flag;
va_start(list, qemuCaps);
while ((flag = va_arg(list, int)) < QEMU_CAPS_LAST)
ignore_value(virBitmapSetBit(qemuCaps->flags, flag));
va_end(list);
}
void
virQEMUCapsClear(virQEMUCapsPtr qemuCaps,
virQEMUCapsFlags flag)
{
ignore_value(virBitmapClearBit(qemuCaps->flags, flag));
}
char *virQEMUCapsFlagsString(virQEMUCapsPtr qemuCaps)
{
return virBitmapToString(qemuCaps->flags, true, false);
}
bool
virQEMUCapsGet(virQEMUCapsPtr qemuCaps,
virQEMUCapsFlags flag)
{
return qemuCaps && virBitmapIsBitSet(qemuCaps->flags, flag);
}
bool virQEMUCapsHasPCIMultiBus(virQEMUCapsPtr qemuCaps,
const virDomainDef *def)
{
/* x86_64 and i686 support PCI-multibus on all machine types
* since forever */
if (ARCH_IS_X86(def->os.arch))
return true;
if (def->os.arch == VIR_ARCH_PPC ||
ARCH_IS_PPC64(def->os.arch)) {
/*
* Usage of pci.0 naming:
*
* ref405ep: no pci
* taihu: no pci
* bamboo: 1.1.0
* mac99: 2.0.0
* g3beige: 2.0.0
* prep: 1.4.0
* pseries: 2.0.0
* mpc8544ds: forever
* virtex-m507: no pci
* ppce500: 1.6.0
*/
/* We do not store the qemu version in domain status XML.
* Hope the user is using a QEMU new enough to use 'pci.0',
* otherwise the results of this function will be wrong
* for domains already running at the time of daemon
* restart */
if (qemuCaps->version == 0)
return true;
if (qemuCaps->version >= 2000000)
return true;
if (qemuCaps->version >= 1006000 &&
STREQ(def->os.machine, "ppce500"))
return true;
if (qemuCaps->version >= 1004000 &&
STREQ(def->os.machine, "prep"))
return true;
if (qemuCaps->version >= 1001000 &&
STREQ(def->os.machine, "bamboo"))
return true;
if (STREQ(def->os.machine, "mpc8544ds"))
return true;
return false;
}
/* If 'virt' supports PCI, it supports multibus.
* No extra conditions here for simplicity.
*/
if (qemuDomainIsVirt(def))
return true;
return false;
}
const char *virQEMUCapsGetBinary(virQEMUCapsPtr qemuCaps)
{
return qemuCaps->binary;
}
void
virQEMUCapsSetArch(virQEMUCapsPtr qemuCaps,
virArch arch)
{
qemuCaps->arch = arch;
}
virArch virQEMUCapsGetArch(virQEMUCapsPtr qemuCaps)
{
return qemuCaps->arch;
}
unsigned int virQEMUCapsGetVersion(virQEMUCapsPtr qemuCaps)
{
return qemuCaps->version;
}
unsigned int virQEMUCapsGetKVMVersion(virQEMUCapsPtr qemuCaps)
{
return qemuCaps->kvmVersion;
}
const char *virQEMUCapsGetPackage(virQEMUCapsPtr qemuCaps)
{
return qemuCaps->package;
}
int
virQEMUCapsAddCPUDefinitions(virQEMUCapsPtr qemuCaps,
virDomainVirtType type,
const char **name,
size_t count,
virDomainCapsCPUUsable usable)
{
size_t i;
virDomainCapsCPUModelsPtr cpus = NULL;
if (type == VIR_DOMAIN_VIRT_KVM && qemuCaps->kvmCPUModels)
cpus = qemuCaps->kvmCPUModels;
else if (type == VIR_DOMAIN_VIRT_QEMU && qemuCaps->tcgCPUModels)
cpus = qemuCaps->tcgCPUModels;
if (!cpus) {
if (!(cpus = virDomainCapsCPUModelsNew(count)))
return -1;
if (type == VIR_DOMAIN_VIRT_KVM)
qemuCaps->kvmCPUModels = cpus;
else
qemuCaps->tcgCPUModels = cpus;
}
for (i = 0; i < count; i++) {
if (virDomainCapsCPUModelsAdd(cpus, name[i], -1, usable, NULL) < 0)
return -1;
}
return 0;
}
virDomainCapsCPUModelsPtr
virQEMUCapsGetCPUDefinitions(virQEMUCapsPtr qemuCaps,
virDomainVirtType type)
{
if (type == VIR_DOMAIN_VIRT_KVM)
return qemuCaps->kvmCPUModels;
else
return qemuCaps->tcgCPUModels;
}
static virQEMUCapsHostCPUDataPtr
virQEMUCapsGetHostCPUData(virQEMUCapsPtr qemuCaps,
virDomainVirtType type)
{
if (type == VIR_DOMAIN_VIRT_KVM)
return &qemuCaps->kvmCPU;
else
return &qemuCaps->tcgCPU;
}
virCPUDefPtr
virQEMUCapsGetHostModel(virQEMUCapsPtr qemuCaps,
virDomainVirtType type,
virQEMUCapsHostCPUType cpuType)
{
virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
switch (cpuType) {
case VIR_QEMU_CAPS_HOST_CPU_REPORTED:
return cpuData->reported;
case VIR_QEMU_CAPS_HOST_CPU_MIGRATABLE:
return cpuData->migratable;
case VIR_QEMU_CAPS_HOST_CPU_FULL:
/* 'full' is non-NULL only if we have data from both QEMU and
* virCPUGetHost */
return cpuData->full ? cpuData->full : cpuData->reported;
}
return NULL;
}
static void
virQEMUCapsSetHostModel(virQEMUCapsPtr qemuCaps,
virDomainVirtType type,
virCPUDefPtr reported,
virCPUDefPtr migratable,
virCPUDefPtr full)
{
virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
cpuData->reported = reported;
cpuData->migratable = migratable;
cpuData->full = full;
}
bool
virQEMUCapsIsCPUModeSupported(virQEMUCapsPtr qemuCaps,
virCapsPtr caps,
virDomainVirtType type,
virCPUMode mode)
{
virDomainCapsCPUModelsPtr cpus;
switch (mode) {
case VIR_CPU_MODE_HOST_PASSTHROUGH:
return type == VIR_DOMAIN_VIRT_KVM &&
virQEMUCapsGuestIsNative(caps->host.arch, qemuCaps->arch);
case VIR_CPU_MODE_HOST_MODEL:
return !!virQEMUCapsGetHostModel(qemuCaps, type,
VIR_QEMU_CAPS_HOST_CPU_REPORTED);
case VIR_CPU_MODE_CUSTOM:
if (type == VIR_DOMAIN_VIRT_KVM)
cpus = qemuCaps->kvmCPUModels;
else
cpus = qemuCaps->tcgCPUModels;
return cpus && cpus->nmodels > 0;
case VIR_CPU_MODE_LAST:
break;
}
return false;
}
int virQEMUCapsGetMachineTypesCaps(virQEMUCapsPtr qemuCaps,
size_t *nmachines,
virCapsGuestMachinePtr **machines)
{
size_t i;
*machines = NULL;
*nmachines = qemuCaps->nmachineTypes;
if (*nmachines &&
VIR_ALLOC_N(*machines, qemuCaps->nmachineTypes) < 0)
goto error;
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
virCapsGuestMachinePtr mach;
if (VIR_ALLOC(mach) < 0)
goto error;
(*machines)[i] = mach;
if (qemuCaps->machineTypes[i].alias) {
if (VIR_STRDUP(mach->name, qemuCaps->machineTypes[i].alias) < 0 ||
VIR_STRDUP(mach->canonical, qemuCaps->machineTypes[i].name) < 0)
goto error;
} else {
if (VIR_STRDUP(mach->name, qemuCaps->machineTypes[i].name) < 0)
goto error;
}
mach->maxCpus = qemuCaps->machineTypes[i].maxCpus;
}
/* Make sure all canonical machine types also have their own entry so that
* /capabilities/guest/arch[@name='...']/machine/text() XPath selects all
* supported machine types.
*/
i = 0;
while (i < *nmachines) {
size_t j;
bool found = false;
virCapsGuestMachinePtr machine = (*machines)[i];
if (!machine->canonical) {
i++;
continue;
}
for (j = 0; j < *nmachines; j++) {
if (STREQ(machine->canonical, (*machines)[j]->name)) {
found = true;
break;
}
}
if (!found) {
virCapsGuestMachinePtr mach;
if (VIR_ALLOC(mach) < 0)
goto error;
if (VIR_INSERT_ELEMENT_COPY(*machines, i, *nmachines, mach) < 0) {
VIR_FREE(mach);
goto error;
}
if (VIR_STRDUP(mach->name, machine->canonical) < 0)
goto error;
mach->maxCpus = machine->maxCpus;
i++;
}
i++;
}
return 0;
error:
virCapabilitiesFreeMachines(*machines, *nmachines);
*nmachines = 0;
*machines = NULL;
return -1;
}
/**
* virQEMUCapsGetCanonicalMachine:
* @qemuCaps: qemu capabilities object
* @name: machine name
*
* Resolves aliased machine names to the actual machine name. If qemuCaps isn't
* present @name is returned.
*/
const char *virQEMUCapsGetCanonicalMachine(virQEMUCapsPtr qemuCaps,
const char *name)
{
size_t i;
if (!name || !qemuCaps)
return name;
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
if (!qemuCaps->machineTypes[i].alias)
continue;
if (STREQ(qemuCaps->machineTypes[i].alias, name))
return qemuCaps->machineTypes[i].name;
}
return name;
}
int virQEMUCapsGetMachineMaxCpus(virQEMUCapsPtr qemuCaps,
const char *name)
{
size_t i;
if (!name)
return 0;
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
if (!qemuCaps->machineTypes[i].maxCpus)
continue;
if (STREQ(qemuCaps->machineTypes[i].name, name))
return qemuCaps->machineTypes[i].maxCpus;
}
return 0;
}
bool virQEMUCapsGetMachineHotplugCpus(virQEMUCapsPtr qemuCaps,
const char *name)
{
size_t i;
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
if (STREQ_NULLABLE(qemuCaps->machineTypes[i].name, name))
return qemuCaps->machineTypes[i].hotplugCpus;
}
return false;
}
/**
* virQEMUCapsSetGICCapabilities:
* @qemuCaps: QEMU capabilities
* @capabilities: GIC capabilities
* @ncapabilities: number of GIC capabilities
*
* Set the GIC capabilities for @qemuCaps.
*
* The ownership of @capabilities is taken away from the caller, ie. this
* function will not make a copy of @capabilities, so releasing that memory
* after it's been called is a bug.
*/
void
virQEMUCapsSetGICCapabilities(virQEMUCapsPtr qemuCaps,
virGICCapability *capabilities,
size_t ncapabilities)
{
VIR_FREE(qemuCaps->gicCapabilities);
qemuCaps->gicCapabilities = capabilities;
qemuCaps->ngicCapabilities = ncapabilities;
}
static int
virQEMUCapsProbeQMPCommands(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon)
{
char **commands = NULL;
int ncommands;
if ((ncommands = qemuMonitorGetCommands(mon, &commands)) < 0)
return -1;
virQEMUCapsProcessStringFlags(qemuCaps,
ARRAY_CARDINALITY(virQEMUCapsCommands),
virQEMUCapsCommands,
ncommands, commands);
virStringListFreeCount(commands, ncommands);
/* QMP add-fd was introduced in 1.2, but did not support
* management control of set numbering, and did not have a
* counterpart -add-fd command line option. We require the
* add-fd features from 1.3 or later. */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_ADD_FD)) {
int fd = open("/dev/null", O_RDONLY);
if (fd < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unable to probe for add-fd"));
return -1;
}
if (qemuMonitorAddFd(mon, 0, fd, "/dev/null") < 0)
virQEMUCapsClear(qemuCaps, QEMU_CAPS_ADD_FD);
VIR_FORCE_CLOSE(fd);
}
/* Probe for active commit of qemu 2.1 (for now, we are choosing
* to ignore the fact that qemu 2.0 can also do active commit) */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCK_COMMIT) &&
qemuMonitorSupportsActiveCommit(mon))
virQEMUCapsSet(qemuCaps, QEMU_CAPS_ACTIVE_COMMIT);
return 0;
}
static int
virQEMUCapsProbeQMPEvents(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon)
{
char **events = NULL;
int nevents;
if ((nevents = qemuMonitorGetEvents(mon, &events)) < 0)
return -1;
virQEMUCapsProcessStringFlags(qemuCaps,
ARRAY_CARDINALITY(virQEMUCapsEvents),
virQEMUCapsEvents,
nevents, events);
virStringListFreeCount(events, nevents);
return 0;
}
static int
virQEMUCapsProbeQMPObjects(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon)
{
int nvalues;
char **values;
size_t i;
if ((nvalues = qemuMonitorGetObjectTypes(mon, &values)) < 0)
return -1;
virQEMUCapsProcessStringFlags(qemuCaps,
ARRAY_CARDINALITY(virQEMUCapsObjectTypes),
virQEMUCapsObjectTypes,
nvalues, values);
virStringListFreeCount(values, nvalues);
for (i = 0; i < ARRAY_CARDINALITY(virQEMUCapsObjectProps); i++) {
const char *type = virQEMUCapsObjectProps[i].type;
int cap = virQEMUCapsObjectProps[i].capsCondition;
if (cap >= 0 && !virQEMUCapsGet(qemuCaps, cap))
continue;
if ((nvalues = qemuMonitorGetDeviceProps(mon,
type,
&values)) < 0)
return -1;
virQEMUCapsProcessStringFlags(qemuCaps,
virQEMUCapsObjectProps[i].nprops,
virQEMUCapsObjectProps[i].props,
nvalues, values);
virStringListFreeCount(values, nvalues);
}
return 0;
}
static int
virQEMUCapsProbeQMPMachineTypes(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon)
{
qemuMonitorMachineInfoPtr *machines = NULL;
int nmachines = 0;
int ret = -1;
size_t i;
size_t defIdx = 0;
if ((nmachines = qemuMonitorGetMachines(mon, &machines)) < 0)
return -1;
if (VIR_ALLOC_N(qemuCaps->machineTypes, nmachines) < 0)
goto cleanup;
for (i = 0; i < nmachines; i++) {
struct virQEMUCapsMachineType *mach;
if (STREQ(machines[i]->name, "none"))
continue;
mach = &(qemuCaps->machineTypes[qemuCaps->nmachineTypes++]);
if (VIR_STRDUP(mach->alias, machines[i]->alias) < 0 ||
VIR_STRDUP(mach->name, machines[i]->name) < 0)
goto cleanup;
mach->maxCpus = machines[i]->maxCpus;
mach->hotplugCpus = machines[i]->hotplugCpus;
if (machines[i]->isDefault)
defIdx = qemuCaps->nmachineTypes - 1;
}
if (defIdx)
virQEMUCapsSetDefaultMachine(qemuCaps, defIdx);
ret = 0;
cleanup:
for (i = 0; i < nmachines; i++)
qemuMonitorMachineInfoFree(machines[i]);
VIR_FREE(machines);
return ret;
}
virDomainCapsCPUModelsPtr
virQEMUCapsFetchCPUDefinitions(qemuMonitorPtr mon)
{
virDomainCapsCPUModelsPtr models = NULL;
qemuMonitorCPUDefInfoPtr *cpus = NULL;
int ncpus = 0;
size_t i;
if ((ncpus = qemuMonitorGetCPUDefinitions(mon, &cpus)) < 0)
return NULL;
if (!(models = virDomainCapsCPUModelsNew(ncpus)))
goto error;
for (i = 0; i < ncpus; i++) {
virDomainCapsCPUUsable usable = VIR_DOMCAPS_CPU_USABLE_UNKNOWN;
if (cpus[i]->usable == VIR_TRISTATE_BOOL_YES)
usable = VIR_DOMCAPS_CPU_USABLE_YES;
else if (cpus[i]->usable == VIR_TRISTATE_BOOL_NO)
usable = VIR_DOMCAPS_CPU_USABLE_NO;
if (virDomainCapsCPUModelsAddSteal(models, &cpus[i]->name, usable,
&cpus[i]->blockers) < 0)
goto error;
}
cleanup:
for (i = 0; i < ncpus; i++)
qemuMonitorCPUDefInfoFree(cpus[i]);
VIR_FREE(cpus);
return models;
error:
virObjectUnref(models);
models = NULL;
goto cleanup;
}
int
virQEMUCapsProbeQMPCPUDefinitions(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon,
bool tcg)
{
virDomainCapsCPUModelsPtr models = NULL;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_DEFINITIONS))
return 0;
if (!(models = virQEMUCapsFetchCPUDefinitions(mon)))
return -1;
if (tcg || !virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM))
qemuCaps->tcgCPUModels = models;
else
qemuCaps->kvmCPUModels = models;
return 0;
}
static int
virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon,
bool tcg)
{
qemuMonitorCPUModelInfoPtr modelInfo = NULL;
qemuMonitorCPUModelInfoPtr nonMigratable = NULL;
virHashTablePtr hash = NULL;
const char *model;
qemuMonitorCPUModelExpansionType type;
virDomainVirtType virtType;
virQEMUCapsHostCPUDataPtr cpuData;
int ret = -1;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION))
return 0;
if (tcg || !virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM)) {
virtType = VIR_DOMAIN_VIRT_QEMU;
model = "max";
} else {
virtType = VIR_DOMAIN_VIRT_KVM;
model = "host";
}
cpuData = virQEMUCapsGetHostCPUData(qemuCaps, virtType);
/* Some x86_64 features defined in cpu_map.xml use spelling which differ
* from the one preferred by QEMU. Static expansion would give us only the
* preferred spelling, thus we need to do a full expansion on the result of
* the initial static expansion to get all variants of all features.
*/
if (ARCH_IS_X86(qemuCaps->arch))
type = QEMU_MONITOR_CPU_MODEL_EXPANSION_STATIC_FULL;
else
type = QEMU_MONITOR_CPU_MODEL_EXPANSION_STATIC;
if (qemuMonitorGetCPUModelExpansion(mon, type, model, true, &modelInfo) < 0)
goto cleanup;
/* Try to check migratability of each feature. */
if (modelInfo &&
qemuMonitorGetCPUModelExpansion(mon, type, model, false,
&nonMigratable) < 0)
goto cleanup;
if (nonMigratable) {
qemuMonitorCPUPropertyPtr prop;
qemuMonitorCPUPropertyPtr nmProp;
size_t i;
if (!(hash = virHashCreate(0, NULL)))
goto cleanup;
for (i = 0; i < modelInfo->nprops; i++) {
prop = modelInfo->props + i;
if (virHashAddEntry(hash, prop->name, prop) < 0)
goto cleanup;
}
for (i = 0; i < nonMigratable->nprops; i++) {
nmProp = nonMigratable->props + i;
if (!(prop = virHashLookup(hash, nmProp->name)) ||
prop->type != QEMU_MONITOR_CPU_PROPERTY_BOOLEAN ||
prop->type != nmProp->type)
continue;
if (prop->value.boolean) {
prop->migratable = VIR_TRISTATE_BOOL_YES;
} else if (nmProp->value.boolean) {
prop->value.boolean = true;
prop->migratable = VIR_TRISTATE_BOOL_NO;
}
}
modelInfo->migratability = true;
}
VIR_STEAL_PTR(cpuData->info, modelInfo);
ret = 0;
cleanup:
virHashFree(hash);
qemuMonitorCPUModelInfoFree(nonMigratable);
qemuMonitorCPUModelInfoFree(modelInfo);
return ret;
}
struct tpmTypeToCaps {
int type;
virQEMUCapsFlags caps;
};
static const struct tpmTypeToCaps virQEMUCapsTPMTypesToCaps[] = {
{
.type = VIR_DOMAIN_TPM_TYPE_PASSTHROUGH,
.caps = QEMU_CAPS_DEVICE_TPM_PASSTHROUGH,
},
};
const struct tpmTypeToCaps virQEMUCapsTPMModelsToCaps[] = {
{
.type = VIR_DOMAIN_TPM_MODEL_TIS,
.caps = QEMU_CAPS_DEVICE_TPM_TIS,
},
};
static int
virQEMUCapsProbeQMPTPM(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon)
{
int nentries;
size_t i;
char **entries = NULL;
if ((nentries = qemuMonitorGetTPMModels(mon, &entries)) < 0)
return -1;
if (nentries > 0) {
for (i = 0; i < ARRAY_CARDINALITY(virQEMUCapsTPMModelsToCaps); i++) {
const char *needle = virDomainTPMModelTypeToString(
virQEMUCapsTPMModelsToCaps[i].type);
if (virStringListHasString((const char **) entries, needle))
virQEMUCapsSet(qemuCaps,
virQEMUCapsTPMModelsToCaps[i].caps);
}
}
virStringListFree(entries);
if ((nentries = qemuMonitorGetTPMTypes(mon, &entries)) < 0)
return -1;
if (nentries > 0) {
for (i = 0; i < ARRAY_CARDINALITY(virQEMUCapsTPMTypesToCaps); i++) {
const char *needle = virDomainTPMBackendTypeToString(
virQEMUCapsTPMTypesToCaps[i].type);
if (virStringListHasString((const char **) entries, needle))
virQEMUCapsSet(qemuCaps, virQEMUCapsTPMTypesToCaps[i].caps);
}
}
virStringListFree(entries);
return 0;
}
static int
virQEMUCapsProbeQMPKVMState(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon)
{
bool enabled = false;
bool present = false;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM))
return 0;
if (qemuMonitorGetKVMState(mon, &enabled, &present) < 0)
return -1;
/* The QEMU_CAPS_KVM flag was initially set according to the QEMU
* reporting the recognition of 'query-kvm' QMP command. That merely
* indicates existence of the command though, not whether KVM support
* is actually available, nor whether it is enabled by default.
*
* If it is not present we need to clear the flag, and if it is
* not enabled by default we need to change the flag.
*/
if (!present) {
virQEMUCapsClear(qemuCaps, QEMU_CAPS_KVM);
} else if (!enabled) {
virQEMUCapsClear(qemuCaps, QEMU_CAPS_KVM);
virQEMUCapsSet(qemuCaps, QEMU_CAPS_ENABLE_KVM);
}
return 0;
}
struct virQEMUCapsCommandLineProps {
const char *option;
const char *param;
int flag;
};
static struct virQEMUCapsCommandLineProps virQEMUCapsCommandLine[] = {
{ "machine", "mem-merge", QEMU_CAPS_MEM_MERGE },
{ "machine", "vmport", QEMU_CAPS_MACHINE_VMPORT_OPT },
{ "drive", "discard", QEMU_CAPS_DRIVE_DISCARD },
{ "drive", "detect-zeroes", QEMU_CAPS_DRIVE_DETECT_ZEROES },
{ "realtime", "mlock", QEMU_CAPS_REALTIME_MLOCK },
{ "boot-opts", "strict", QEMU_CAPS_BOOT_STRICT },
{ "boot-opts", "reboot-timeout", QEMU_CAPS_REBOOT_TIMEOUT },
{ "boot-opts", "splash-time", QEMU_CAPS_SPLASH_TIMEOUT },
{ "spice", "disable-agent-file-xfer", QEMU_CAPS_SPICE_FILE_XFER_DISABLE },
{ "msg", "timestamp", QEMU_CAPS_MSG_TIMESTAMP },
{ "numa", NULL, QEMU_CAPS_NUMA },
{ "drive", "throttling.bps-total-max", QEMU_CAPS_DRIVE_IOTUNE_MAX},
{ "machine", "aes-key-wrap", QEMU_CAPS_AES_KEY_WRAP },
{ "machine", "dea-key-wrap", QEMU_CAPS_DEA_KEY_WRAP },
{ "chardev", "append", QEMU_CAPS_CHARDEV_FILE_APPEND },
{ "spice", "gl", QEMU_CAPS_SPICE_GL },
{ "chardev", "logfile", QEMU_CAPS_CHARDEV_LOGFILE },
{ "name", "debug-threads", QEMU_CAPS_NAME_DEBUG_THREADS },
{ "name", "guest", QEMU_CAPS_NAME_GUEST },
{ "spice", "unix", QEMU_CAPS_SPICE_UNIX },
{ "drive", "throttling.bps-total-max-length", QEMU_CAPS_DRIVE_IOTUNE_MAX_LENGTH },
{ "drive", "throttling.group", QEMU_CAPS_DRIVE_IOTUNE_GROUP },
{ "spice", "rendernode", QEMU_CAPS_SPICE_RENDERNODE },
{ "machine", "kernel_irqchip", QEMU_CAPS_MACHINE_KERNEL_IRQCHIP },
{ "machine", "loadparm", QEMU_CAPS_LOADPARM },
{ "vnc", "vnc", QEMU_CAPS_VNC_MULTI_SERVERS },
{ "chardev", "reconnect", QEMU_CAPS_CHARDEV_RECONNECT },
{ "sandbox", "elevateprivileges", QEMU_CAPS_SECCOMP_BLACKLIST },
};
static int
virQEMUCapsProbeQMPCommandLine(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon)
{
bool found = false;
int nvalues;
char **values;
size_t i, j;
for (i = 0; i < ARRAY_CARDINALITY(virQEMUCapsCommandLine); i++) {
if ((nvalues = qemuMonitorGetCommandLineOptionParameters(mon,
virQEMUCapsCommandLine[i].option,
&values,
&found)) < 0)
return -1;
if (found && !virQEMUCapsCommandLine[i].param)
virQEMUCapsSet(qemuCaps, virQEMUCapsCommandLine[i].flag);
for (j = 0; j < nvalues; j++) {
if (STREQ_NULLABLE(virQEMUCapsCommandLine[i].param, values[j])) {
virQEMUCapsSet(qemuCaps, virQEMUCapsCommandLine[i].flag);
break;
}
}
virStringListFree(values);
}
return 0;
}
static int
virQEMUCapsProbeQMPMigrationCapabilities(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon)
{
char **caps = NULL;
int ncaps;
if ((ncaps = qemuMonitorGetMigrationCapabilities(mon, &caps)) < 0)
return -1;
virQEMUCapsProcessStringFlags(qemuCaps,
ARRAY_CARDINALITY(virQEMUCapsMigration),
virQEMUCapsMigration,
ncaps, caps);
virStringListFreeCount(caps, ncaps);
return 0;
}
/**
* virQEMUCapsProbeQMPGICCapabilities:
* @qemuCaps: QEMU binary capabilities
* @mon: QEMU monitor
*
* Use @mon to obtain information about the GIC capabilities for the
* corresponding QEMU binary, and store them in @qemuCaps.
*
* Returns: 0 on success, <0 on failure
*/
static int
virQEMUCapsProbeQMPGICCapabilities(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon)
{
virGICCapability *caps = NULL;
int ncaps;
if ((ncaps = qemuMonitorGetGICCapabilities(mon, &caps)) < 0)
return -1;
virQEMUCapsSetGICCapabilities(qemuCaps, caps, ncaps);
return 0;
}
bool
virQEMUCapsCPUFilterFeatures(const char *name,
void *opaque)
{
virArch *arch = opaque;
if (!ARCH_IS_X86(*arch))
return true;
if (STREQ(name, "cmt") ||
STREQ(name, "mbm_total") ||
STREQ(name, "mbm_local"))
return false;
return true;
}
/**
* Returns 0 when host CPU model provided by QEMU was filled in qemuCaps,
* 1 when the caller should fall back to using virCapsPtr->host.cpu,
* 2 when cpu model info is not supported for this configuration,
* -1 on error.
*/
static int
virQEMUCapsInitCPUModelS390(virQEMUCapsPtr qemuCaps,
virDomainVirtType type,
qemuMonitorCPUModelInfoPtr modelInfo,
virCPUDefPtr cpu,
bool migratable)
{
size_t i;
if (!modelInfo) {
if (type == VIR_DOMAIN_VIRT_KVM) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing host CPU model info from QEMU "
"capabilities for binary %s"),
qemuCaps->binary);
return -1;
}
return 2;
}
if (VIR_STRDUP(cpu->model, modelInfo->name) < 0 ||
VIR_ALLOC_N(cpu->features, modelInfo->nprops) < 0)
return -1;
cpu->nfeatures_max = modelInfo->nprops;
cpu->nfeatures = 0;
for (i = 0; i < modelInfo->nprops; i++) {
virCPUFeatureDefPtr feature = cpu->features + cpu->nfeatures;
qemuMonitorCPUPropertyPtr prop = modelInfo->props + i;
if (prop->type != QEMU_MONITOR_CPU_PROPERTY_BOOLEAN)
continue;
if (VIR_STRDUP(feature->name, prop->name) < 0)
return -1;
if (!prop->value.boolean ||
(migratable && prop->migratable == VIR_TRISTATE_BOOL_NO))
feature->policy = VIR_CPU_FEATURE_DISABLE;
else
feature->policy = VIR_CPU_FEATURE_REQUIRE;
cpu->nfeatures++;
}
return 0;
}
/**
* Returns 0 when host CPU model provided by QEMU was filled in qemuCaps,
* 1 when the caller should fall back to using virCapsPtr->host.cpu,
* -1 on error.
*/
static int
virQEMUCapsInitCPUModelX86(virQEMUCapsPtr qemuCaps,
virDomainVirtType type,
qemuMonitorCPUModelInfoPtr model,
virCPUDefPtr cpu,
bool migratable)
{
virCPUDataPtr data = NULL;
unsigned long long sigFamily = 0;
unsigned long long sigModel = 0;
unsigned long long sigStepping = 0;
int ret = -1;
size_t i;
if (!model)
return 1;
if (!(data = virCPUDataNew(VIR_ARCH_X86_64)))
goto cleanup;
for (i = 0; i < model->nprops; i++) {
qemuMonitorCPUPropertyPtr prop = model->props + i;
switch (prop->type) {
case QEMU_MONITOR_CPU_PROPERTY_BOOLEAN:
if (!prop->value.boolean ||
(migratable && prop->migratable == VIR_TRISTATE_BOOL_NO))
continue;
if (virCPUx86DataAddFeature(data, prop->name) < 0)
goto cleanup;
break;
case QEMU_MONITOR_CPU_PROPERTY_STRING:
if (STREQ(prop->name, "vendor") &&
virCPUx86DataSetVendor(data, prop->value.string) < 0)
goto cleanup;
break;
case QEMU_MONITOR_CPU_PROPERTY_NUMBER:
if (STREQ(prop->name, "family"))
sigFamily = prop->value.number;
else if (STREQ(prop->name, "model"))
sigModel = prop->value.number;
else if (STREQ(prop->name, "stepping"))
sigStepping = prop->value.number;
break;
case QEMU_MONITOR_CPU_PROPERTY_LAST:
break;
}
}
if (virCPUx86DataSetSignature(data, sigFamily, sigModel, sigStepping) < 0)
goto cleanup;
if (cpuDecode(cpu, data, virQEMUCapsGetCPUDefinitions(qemuCaps, type)) < 0)
goto cleanup;
ret = 0;
cleanup:
virCPUDataFree(data);
return ret;
}
/**
* Returns 0 when host CPU model provided by QEMU was filled in qemuCaps,
* 1 when the caller should fall back to other methods,
* 2 when cpu model info is not supported for this configuration,
* -1 on error.
*/
int
virQEMUCapsInitCPUModel(virQEMUCapsPtr qemuCaps,
virDomainVirtType type,
virCPUDefPtr cpu,
bool migratable)
{
virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
int ret = 1;
if (migratable && cpuData->info && !cpuData->info->migratability)
return 1;
if (ARCH_IS_S390(qemuCaps->arch)) {
ret = virQEMUCapsInitCPUModelS390(qemuCaps, type, cpuData->info,
cpu, migratable);
} else if (ARCH_IS_X86(qemuCaps->arch)) {
ret = virQEMUCapsInitCPUModelX86(qemuCaps, type, cpuData->info,
cpu, migratable);
}
if (ret == 0)
cpu->fallback = VIR_CPU_FALLBACK_FORBID;
return ret;
}
static virCPUDefPtr
virQEMUCapsNewHostCPUModel(void)
{
virCPUDefPtr cpu;
if (VIR_ALLOC(cpu) < 0)
return NULL;
cpu->type = VIR_CPU_TYPE_GUEST;
cpu->mode = VIR_CPU_MODE_CUSTOM;
cpu->match = VIR_CPU_MATCH_EXACT;
cpu->fallback = VIR_CPU_FALLBACK_ALLOW;
return cpu;
}
void
virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
virArch hostArch,
virDomainVirtType type)
{
virCPUDefPtr cpu = NULL;
virCPUDefPtr migCPU = NULL;
virCPUDefPtr hostCPU = NULL;
virCPUDefPtr fullCPU = NULL;
size_t i;
int rc;
if (!virQEMUCapsGuestIsNative(hostArch, qemuCaps->arch))
return;
if (!(cpu = virQEMUCapsNewHostCPUModel()))
goto error;
if ((rc = virQEMUCapsInitCPUModel(qemuCaps, type, cpu, false)) < 0) {
goto error;
} else if (rc == 1) {
VIR_DEBUG("No host CPU model info from QEMU; probing host CPU directly");
hostCPU = virQEMUCapsProbeHostCPUForEmulator(hostArch, qemuCaps, type);
if (!hostCPU ||
virCPUDefCopyModelFilter(cpu, hostCPU, true,
virQEMUCapsCPUFilterFeatures,
&qemuCaps->arch) < 0)
goto error;
} else if (rc == 2) {
VIR_DEBUG("QEMU does not provide CPU model for arch=%s virttype=%s",
virArchToString(qemuCaps->arch),
virDomainVirtTypeToString(type));
goto error;
} else if (type == VIR_DOMAIN_VIRT_KVM &&
virCPUGetHostIsSupported(qemuCaps->arch)) {
if (!(fullCPU = virCPUGetHost(qemuCaps->arch, VIR_CPU_TYPE_GUEST,
NULL, NULL)))
goto error;
for (i = 0; i < cpu->nfeatures; i++) {
if (cpu->features[i].policy == VIR_CPU_FEATURE_REQUIRE &&
virCPUDefUpdateFeature(fullCPU, cpu->features[i].name,
VIR_CPU_FEATURE_REQUIRE) < 0)
goto error;
}
}
if (!(migCPU = virQEMUCapsNewHostCPUModel()))
goto error;
if ((rc = virQEMUCapsInitCPUModel(qemuCaps, type, migCPU, true)) < 0) {
goto error;
} else if (rc == 1) {
VIR_DEBUG("CPU migratability not provided by QEMU");
virCPUDefFree(migCPU);
if (!(migCPU = virCPUCopyMigratable(qemuCaps->arch, cpu)))
goto error;
}
virQEMUCapsSetHostModel(qemuCaps, type, cpu, migCPU, fullCPU);
cleanup:
virCPUDefFree(hostCPU);
return;
error:
virCPUDefFree(cpu);
virCPUDefFree(migCPU);
virCPUDefFree(fullCPU);
virResetLastError();
goto cleanup;
}
void
virQEMUCapsSetCPUModelInfo(virQEMUCapsPtr qemuCaps,
virDomainVirtType type,
qemuMonitorCPUModelInfoPtr modelInfo)
{
virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
cpuData->info = modelInfo;
}
static int
virQEMUCapsLoadHostCPUModelInfo(virQEMUCapsPtr qemuCaps,
xmlXPathContextPtr ctxt,
virDomainVirtType virtType)
{
char *str = NULL;
xmlNodePtr hostCPUNode;
xmlNodePtr *nodes = NULL;
xmlNodePtr oldnode = ctxt->node;
qemuMonitorCPUModelInfoPtr hostCPU = NULL;
int ret = -1;
size_t i;
int n;
int val;
if (virtType == VIR_DOMAIN_VIRT_KVM)
hostCPUNode = virXPathNode("./hostCPU[@type='kvm']", ctxt);
else
hostCPUNode = virXPathNode("./hostCPU[@type='tcg']", ctxt);
if (!hostCPUNode) {
ret = 0;
goto cleanup;
}
if (VIR_ALLOC(hostCPU) < 0)
goto cleanup;
if (!(hostCPU->name = virXMLPropString(hostCPUNode, "model"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing host CPU model name in QEMU "
"capabilities cache"));
goto cleanup;
}
if (!(str = virXMLPropString(hostCPUNode, "migratability")) ||
(val = virTristateBoolTypeFromString(str)) <= 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("invalid migratability value for host CPU model"));
goto cleanup;
}
hostCPU->migratability = val == VIR_TRISTATE_BOOL_YES;
VIR_FREE(str);
ctxt->node = hostCPUNode;
if ((n = virXPathNodeSet("./property", ctxt, &nodes)) > 0) {
if (VIR_ALLOC_N(hostCPU->props, n) < 0)
goto cleanup;
hostCPU->nprops = n;
for (i = 0; i < n; i++) {
qemuMonitorCPUPropertyPtr prop = hostCPU->props + i;
ctxt->node = nodes[i];
if (!(prop->name = virXMLPropString(ctxt->node, "name"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing 'name' attribute for a host CPU"
" model property in QEMU capabilities cache"));
goto cleanup;
}
if (!(str = virXMLPropString(ctxt->node, "type")) ||
(val = qemuMonitorCPUPropertyTypeFromString(str)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing or invalid CPU model property type "
"in QEMU capabilities cache"));
goto cleanup;
}
VIR_FREE(str);
prop->type = val;
switch (prop->type) {
case QEMU_MONITOR_CPU_PROPERTY_BOOLEAN:
if (virXPathBoolean("./@value='true'", ctxt))
prop->value.boolean = true;
break;
case QEMU_MONITOR_CPU_PROPERTY_STRING:
prop->value.string = virXMLPropString(ctxt->node, "value");
if (!prop->value.string) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("invalid string value for '%s' host CPU "
"model property in QEMU capabilities cache"),
prop->name);
goto cleanup;
}
break;
case QEMU_MONITOR_CPU_PROPERTY_NUMBER:
if (virXPathLongLong("string(./@value)", ctxt,
&prop->value.number) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("invalid number value for '%s' host CPU "
"model property in QEMU capabilities cache"),
prop->name);
goto cleanup;
}
break;
case QEMU_MONITOR_CPU_PROPERTY_LAST:
break;
}
if ((str = virXMLPropString(ctxt->node, "migratable"))) {
if ((val = virTristateBoolTypeFromString(str)) <= 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown migratable value for '%s' host "
"CPU model property"),
prop->name);
goto cleanup;
}
prop->migratable = val;
VIR_FREE(str);
}
}
}
virQEMUCapsSetCPUModelInfo(qemuCaps, virtType, hostCPU);
hostCPU = NULL;
ret = 0;
cleanup:
ctxt->node = oldnode;
VIR_FREE(str);
VIR_FREE(nodes);
qemuMonitorCPUModelInfoFree(hostCPU);
return ret;
}
static int
virQEMUCapsLoadCPUModels(virQEMUCapsPtr qemuCaps,
xmlXPathContextPtr ctxt,
virDomainVirtType type)
{
virDomainCapsCPUModelsPtr cpus = NULL;
xmlNodePtr *nodes = NULL;
char *str = NULL;
size_t i;
int n;
int ret = -1;
xmlNodePtr node;
xmlNodePtr *blockerNodes = NULL;
char **blockers = NULL;
int nblockers;
if (type == VIR_DOMAIN_VIRT_KVM)
n = virXPathNodeSet("./cpu[@type='kvm']", ctxt, &nodes);
else
n = virXPathNodeSet("./cpu[@type='tcg']", ctxt, &nodes);
if (n < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to parse qemu capabilities cpus"));
goto cleanup;
}
if (n == 0) {
ret = 0;
goto cleanup;
}
if (!(cpus = virDomainCapsCPUModelsNew(n)))
goto cleanup;
if (type == VIR_DOMAIN_VIRT_KVM)
qemuCaps->kvmCPUModels = cpus;
else
qemuCaps->tcgCPUModels = cpus;
for (i = 0; i < n; i++) {
int usable = VIR_DOMCAPS_CPU_USABLE_UNKNOWN;
if ((str = virXMLPropString(nodes[i], "usable")) &&
(usable = virDomainCapsCPUUsableTypeFromString(str)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown value '%s' in attribute 'usable'"), str);
goto cleanup;
}
VIR_FREE(str);
if (!(str = virXMLPropString(nodes[i], "name"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing cpu name in QEMU capabilities cache"));
goto cleanup;
}
node = ctxt->node;
ctxt->node = nodes[i];
nblockers = virXPathNodeSet("./blocker", ctxt, &blockerNodes);
ctxt->node = node;
if (nblockers < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to parse CPU blockers in QEMU capabilities"));
goto cleanup;
}
if (nblockers > 0) {
size_t j;
if (VIR_ALLOC_N(blockers, nblockers + 1) < 0)
goto cleanup;
for (j = 0; j < nblockers; j++) {
if (!(blockers[j] = virXMLPropString(blockerNodes[j], "name"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing blocker name in QEMU "
"capabilities cache"));
goto cleanup;
}
}
VIR_FREE(blockerNodes);
}
if (virDomainCapsCPUModelsAddSteal(cpus, &str, usable, &blockers) < 0)
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(nodes);
VIR_FREE(str);
VIR_FREE(blockerNodes);
virStringListFree(blockers);
return ret;
}
struct _virQEMUCapsCachePriv {
char *libDir;
uid_t runUid;
gid_t runGid;
virArch hostArch;
unsigned int microcodeVersion;
char *kernelVersion;
};
typedef struct _virQEMUCapsCachePriv virQEMUCapsCachePriv;
typedef virQEMUCapsCachePriv *virQEMUCapsCachePrivPtr;
static void
virQEMUCapsCachePrivFree(void *privData)
{
virQEMUCapsCachePrivPtr priv = privData;
VIR_FREE(priv->libDir);
VIR_FREE(priv->kernelVersion);
VIR_FREE(priv);
}
/*
* Parsing a doc that looks like
*
* <qemuCaps>
* <qemuctime>234235253</qemuctime>
* <selfctime>234235253</selfctime>
* <selfvers>1002016</selfvers>
* <usedQMP/>
* <flag name='foo'/>
* <flag name='bar'/>
* ...
* <cpu name="pentium3"/>
* ...
* <machine name="pc-1.0" alias="pc" hotplugCpus='yes' maxCpus="4"/>
* ...
* </qemuCaps>
*/
int
virQEMUCapsLoadCache(virArch hostArch,
virQEMUCapsPtr qemuCaps,
const char *filename)
{
xmlDocPtr doc = NULL;
int ret = -1;
size_t i;
int n;
xmlNodePtr *nodes = NULL;
xmlXPathContextPtr ctxt = NULL;
char *str = NULL;
long long int l;
unsigned long lu;
if (!(doc = virXMLParseFile(filename)))
goto cleanup;
if (!(ctxt = xmlXPathNewContext(doc))) {
virReportOOMError();
goto cleanup;
}
ctxt->node = xmlDocGetRootElement(doc);
if (STRNEQ((const char *)ctxt->node->name, "qemuCaps")) {
virReportError(VIR_ERR_XML_ERROR,
_("unexpected root element <%s>, "
"expecting <qemuCaps>"),
ctxt->node->name);
goto cleanup;
}
if (virXPathLongLong("string(./qemuctime)", ctxt, &l) < 0) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing qemuctime in QEMU capabilities XML"));
goto cleanup;
}
qemuCaps->ctime = (time_t)l;
if (virXPathLongLong("string(./selfctime)", ctxt, &l) < 0) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing selfctime in QEMU capabilities XML"));
goto cleanup;
}
qemuCaps->libvirtCtime = (time_t)l;
qemuCaps->libvirtVersion = 0;
if (virXPathULong("string(./selfvers)", ctxt, &lu) == 0)
qemuCaps->libvirtVersion = lu;
qemuCaps->usedQMP = virXPathBoolean("count(./usedQMP) > 0",
ctxt) > 0;
if ((n = virXPathNodeSet("./flag", ctxt, &nodes)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to parse qemu capabilities flags"));
goto cleanup;
}
VIR_DEBUG("Got flags %d", n);
for (i = 0; i < n; i++) {
int flag;
if (!(str = virXMLPropString(nodes[i], "name"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing flag name in QEMU capabilities cache"));
goto cleanup;
}
flag = virQEMUCapsTypeFromString(str);
if (flag < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unknown qemu capabilities flag %s"), str);
goto cleanup;
}
VIR_FREE(str);
virQEMUCapsSet(qemuCaps, flag);
}
VIR_FREE(nodes);
if (virXPathUInt("string(./version)", ctxt, &qemuCaps->version) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing version in QEMU capabilities cache"));
goto cleanup;
}
if (virXPathUInt("string(./kvmVersion)", ctxt, &qemuCaps->kvmVersion) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing version in QEMU capabilities cache"));
goto cleanup;
}
if (virXPathUInt("string(./microcodeVersion)", ctxt,
&qemuCaps->microcodeVersion) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing microcode version in QEMU capabilities cache"));
goto cleanup;
}
if (virXPathBoolean("boolean(./package)", ctxt) > 0) {
qemuCaps->package = virXPathString("string(./package)", ctxt);
if (!qemuCaps->package &&
VIR_STRDUP(qemuCaps->package, "") < 0)
goto cleanup;
}
if (virXPathBoolean("boolean(./kernelVersion)", ctxt) > 0) {
qemuCaps->kernelVersion = virXPathString("string(./kernelVersion)", ctxt);
if (!qemuCaps->kernelVersion)
goto cleanup;
}
if (!(str = virXPathString("string(./arch)", ctxt))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing arch in QEMU capabilities cache"));
goto cleanup;
}
if (!(qemuCaps->arch = virArchFromString(str))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown arch %s in QEMU capabilities cache"), str);
goto cleanup;
}
VIR_FREE(str);
if (virQEMUCapsLoadHostCPUModelInfo(qemuCaps, ctxt, VIR_DOMAIN_VIRT_KVM) < 0 ||
virQEMUCapsLoadHostCPUModelInfo(qemuCaps, ctxt, VIR_DOMAIN_VIRT_QEMU) < 0)
goto cleanup;
if (virQEMUCapsLoadCPUModels(qemuCaps, ctxt, VIR_DOMAIN_VIRT_KVM) < 0 ||
virQEMUCapsLoadCPUModels(qemuCaps, ctxt, VIR_DOMAIN_VIRT_QEMU) < 0)
goto cleanup;
if ((n = virXPathNodeSet("./machine", ctxt, &nodes)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to parse qemu capabilities machines"));
goto cleanup;
}
if (n > 0) {
qemuCaps->nmachineTypes = n;
if (VIR_ALLOC_N(qemuCaps->machineTypes, qemuCaps->nmachineTypes) < 0)
goto cleanup;
for (i = 0; i < n; i++) {
if (!(qemuCaps->machineTypes[i].name = virXMLPropString(nodes[i], "name"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing machine name in QEMU capabilities cache"));
goto cleanup;
}
qemuCaps->machineTypes[i].alias = virXMLPropString(nodes[i], "alias");
str = virXMLPropString(nodes[i], "maxCpus");
if (str &&
virStrToLong_ui(str, NULL, 10, &(qemuCaps->machineTypes[i].maxCpus)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("malformed machine cpu count in QEMU capabilities cache"));
goto cleanup;
}
VIR_FREE(str);
str = virXMLPropString(nodes[i], "hotplugCpus");
if (STREQ_NULLABLE(str, "yes"))
qemuCaps->machineTypes[i].hotplugCpus = true;
VIR_FREE(str);
}
}
VIR_FREE(nodes);
if ((n = virXPathNodeSet("./gic", ctxt, &nodes)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to parse qemu capabilities gic"));
goto cleanup;
}
if (n > 0) {
unsigned int uintValue;
bool boolValue;
qemuCaps->ngicCapabilities = n;
if (VIR_ALLOC_N(qemuCaps->gicCapabilities, n) < 0)
goto cleanup;
for (i = 0; i < n; i++) {
virGICCapabilityPtr cap = &qemuCaps->gicCapabilities[i];
if (!(str = virXMLPropString(nodes[i], "version"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing GIC version "
"in QEMU capabilities cache"));
goto cleanup;
}
if (virStrToLong_ui(str, NULL, 10, &uintValue) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("malformed GIC version "
"in QEMU capabilities cache"));
goto cleanup;
}
cap->version = uintValue;
VIR_FREE(str);
if (!(str = virXMLPropString(nodes[i], "kernel"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing in-kernel GIC information "
"in QEMU capabilities cache"));
goto cleanup;
}
if (!(boolValue = STREQ(str, "yes")) && STRNEQ(str, "no")) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("malformed in-kernel GIC information "
"in QEMU capabilities cache"));
goto cleanup;
}
if (boolValue)
cap->implementation |= VIR_GIC_IMPLEMENTATION_KERNEL;
VIR_FREE(str);
if (!(str = virXMLPropString(nodes[i], "emulated"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing emulated GIC information "
"in QEMU capabilities cache"));
goto cleanup;
}
if (!(boolValue = STREQ(str, "yes")) && STRNEQ(str, "no")) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("malformed emulated GIC information "
"in QEMU capabilities cache"));
goto cleanup;
}
if (boolValue)
cap->implementation |= VIR_GIC_IMPLEMENTATION_EMULATED;
VIR_FREE(str);
}
}
VIR_FREE(nodes);
virQEMUCapsInitHostCPUModel(qemuCaps, hostArch, VIR_DOMAIN_VIRT_KVM);
virQEMUCapsInitHostCPUModel(qemuCaps, hostArch, VIR_DOMAIN_VIRT_QEMU);
ret = 0;
cleanup:
VIR_FREE(str);
VIR_FREE(nodes);
xmlXPathFreeContext(ctxt);
xmlFreeDoc(doc);
return ret;
}
static void
virQEMUCapsFormatHostCPUModelInfo(virQEMUCapsPtr qemuCaps,
virBufferPtr buf,
virDomainVirtType type)
{
virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type);
qemuMonitorCPUModelInfoPtr model = cpuData->info;
const char *typeStr = type == VIR_DOMAIN_VIRT_KVM ? "kvm" : "tcg";
size_t i;
if (!model)
return;
virBufferAsprintf(buf,
"<hostCPU type='%s' model='%s' migratability='%s'>\n",
typeStr, model->name,
model->migratability ? "yes" : "no");
virBufferAdjustIndent(buf, 2);
for (i = 0; i < model->nprops; i++) {
qemuMonitorCPUPropertyPtr prop = model->props + i;
virBufferAsprintf(buf, "<property name='%s' type='%s' ",
prop->name,
qemuMonitorCPUPropertyTypeToString(prop->type));
switch (prop->type) {
case QEMU_MONITOR_CPU_PROPERTY_BOOLEAN:
virBufferAsprintf(buf, "value='%s'",
prop->value.boolean ? "true" : "false");
break;
case QEMU_MONITOR_CPU_PROPERTY_STRING:
virBufferEscapeString(buf, "value='%s'", prop->value.string);
break;
case QEMU_MONITOR_CPU_PROPERTY_NUMBER:
virBufferAsprintf(buf, "value='%lld'", prop->value.number);
break;
case QEMU_MONITOR_CPU_PROPERTY_LAST:
break;
}
if (prop->migratable > 0)
virBufferAsprintf(buf, " migratable='%s'",
virTristateBoolTypeToString(prop->migratable));
virBufferAddLit(buf, "/>\n");
}
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</hostCPU>\n");
}
static void
virQEMUCapsFormatCPUModels(virQEMUCapsPtr qemuCaps,
virBufferPtr buf,
virDomainVirtType type)
{
virDomainCapsCPUModelsPtr cpus;
const char *typeStr;
size_t i;
if (type == VIR_DOMAIN_VIRT_KVM) {
typeStr = "kvm";
cpus = qemuCaps->kvmCPUModels;
} else {
typeStr = "tcg";
cpus = qemuCaps->tcgCPUModels;
}
if (!cpus)
return;
for (i = 0; i < cpus->nmodels; i++) {
virDomainCapsCPUModelPtr cpu = cpus->models + i;
virBufferAsprintf(buf, "<cpu type='%s' ", typeStr);
virBufferEscapeString(buf, "name='%s'", cpu->name);
if (cpu->usable) {
virBufferAsprintf(buf, " usable='%s'",
virDomainCapsCPUUsableTypeToString(cpu->usable));
}
if (cpu->blockers) {
size_t j;
virBufferAddLit(buf, ">\n");
virBufferAdjustIndent(buf, 2);
for (j = 0; cpu->blockers[j]; j++)
virBufferAsprintf(buf, "<blocker name='%s'/>\n", cpu->blockers[j]);
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</cpu>\n");
} else {
virBufferAddLit(buf, "/>\n");
}
}
}
char *
virQEMUCapsFormatCache(virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
char *ret = NULL;
size_t i;
virBufferAddLit(&buf, "<qemuCaps>\n");
virBufferAdjustIndent(&buf, 2);
virBufferAsprintf(&buf, "<qemuctime>%llu</qemuctime>\n",
(long long) qemuCaps->ctime);
virBufferAsprintf(&buf, "<selfctime>%llu</selfctime>\n",
(long long) qemuCaps->libvirtCtime);
virBufferAsprintf(&buf, "<selfvers>%lu</selfvers>\n",
(unsigned long) qemuCaps->libvirtVersion);
if (qemuCaps->usedQMP)
virBufferAddLit(&buf, "<usedQMP/>\n");
for (i = 0; i < QEMU_CAPS_LAST; i++) {
if (virQEMUCapsGet(qemuCaps, i)) {
virBufferAsprintf(&buf, "<flag name='%s'/>\n",
virQEMUCapsTypeToString(i));
}
}
virBufferAsprintf(&buf, "<version>%d</version>\n",
qemuCaps->version);
virBufferAsprintf(&buf, "<kvmVersion>%d</kvmVersion>\n",
qemuCaps->kvmVersion);
virBufferAsprintf(&buf, "<microcodeVersion>%u</microcodeVersion>\n",
qemuCaps->microcodeVersion);
if (qemuCaps->package)
virBufferAsprintf(&buf, "<package>%s</package>\n",
qemuCaps->package);
if (qemuCaps->kernelVersion)
virBufferAsprintf(&buf, "<kernelVersion>%s</kernelVersion>\n",
qemuCaps->kernelVersion);
virBufferAsprintf(&buf, "<arch>%s</arch>\n",
virArchToString(qemuCaps->arch));
virQEMUCapsFormatHostCPUModelInfo(qemuCaps, &buf, VIR_DOMAIN_VIRT_KVM);
virQEMUCapsFormatHostCPUModelInfo(qemuCaps, &buf, VIR_DOMAIN_VIRT_QEMU);
virQEMUCapsFormatCPUModels(qemuCaps, &buf, VIR_DOMAIN_VIRT_KVM);
virQEMUCapsFormatCPUModels(qemuCaps, &buf, VIR_DOMAIN_VIRT_QEMU);
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
virBufferEscapeString(&buf, "<machine name='%s'",
qemuCaps->machineTypes[i].name);
if (qemuCaps->machineTypes[i].alias)
virBufferEscapeString(&buf, " alias='%s'",
qemuCaps->machineTypes[i].alias);
if (qemuCaps->machineTypes[i].hotplugCpus)
virBufferAddLit(&buf, " hotplugCpus='yes'");
virBufferAsprintf(&buf, " maxCpus='%u'/>\n",
qemuCaps->machineTypes[i].maxCpus);
}
for (i = 0; i < qemuCaps->ngicCapabilities; i++) {
virGICCapabilityPtr cap;
bool kernel;
bool emulated;
cap = &qemuCaps->gicCapabilities[i];
kernel = (cap->implementation & VIR_GIC_IMPLEMENTATION_KERNEL);
emulated = (cap->implementation & VIR_GIC_IMPLEMENTATION_EMULATED);
virBufferAsprintf(&buf,
"<gic version='%d' kernel='%s' emulated='%s'/>\n",
cap->version,
kernel ? "yes" : "no",
emulated ? "yes" : "no");
}
virBufferAdjustIndent(&buf, -2);
virBufferAddLit(&buf, "</qemuCaps>\n");
if (virBufferCheckError(&buf) == 0)
ret = virBufferContentAndReset(&buf);
return ret;
}
static int
virQEMUCapsSaveFile(void *data,
const char *filename,
void *privData ATTRIBUTE_UNUSED)
{
virQEMUCapsPtr qemuCaps = data;
char *xml = NULL;
int ret = -1;
xml = virQEMUCapsFormatCache(qemuCaps);
if (virFileWriteStr(filename, xml, 0600) < 0) {
virReportSystemError(errno,
_("Failed to save '%s' for '%s'"),
filename, qemuCaps->binary);
goto cleanup;
}
VIR_DEBUG("Saved caps '%s' for '%s' with (%lld, %lld)",
filename, qemuCaps->binary,
(long long)qemuCaps->ctime,
(long long)qemuCaps->libvirtCtime);
ret = 0;
cleanup:
VIR_FREE(xml);
return ret;
}
static bool
virQEMUCapsIsValid(void *data,
void *privData)
{
virQEMUCapsPtr qemuCaps = data;
virQEMUCapsCachePrivPtr priv = privData;
bool kvmUsable;
struct stat sb;
if (!qemuCaps->binary)
return true;
if (qemuCaps->libvirtCtime != virGetSelfLastChanged() ||
qemuCaps->libvirtVersion != LIBVIR_VERSION_NUMBER) {
VIR_DEBUG("Outdated capabilities for '%s': libvirt changed "
"(%lld vs %lld, %lu vs %lu)",
qemuCaps->binary,
(long long)qemuCaps->libvirtCtime,
(long long)virGetSelfLastChanged(),
(unsigned long)qemuCaps->libvirtVersion,
(unsigned long)LIBVIR_VERSION_NUMBER);
return false;
}
if (stat(qemuCaps->binary, &sb) < 0) {
char ebuf[1024];
VIR_DEBUG("Failed to stat QEMU binary '%s': %s",
qemuCaps->binary,
virStrerror(errno, ebuf, sizeof(ebuf)));
return false;
}
if (sb.st_ctime != qemuCaps->ctime) {
VIR_DEBUG("Outdated capabilities for '%s': QEMU binary changed "
"(%lld vs %lld)",
qemuCaps->binary,
(long long) sb.st_ctime, (long long) qemuCaps->ctime);
return false;
}
kvmUsable = virFileAccessibleAs("/dev/kvm", R_OK | W_OK,
priv->runUid, priv->runGid) == 0;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_ENABLE_KVM) &&
kvmUsable) {
VIR_DEBUG("KVM was not enabled when probing '%s', "
"but it should be usable now",
qemuCaps->binary);
return false;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM) &&
!kvmUsable) {
VIR_DEBUG("KVM was enabled when probing '%s', "
"but it is not available now",
qemuCaps->binary);
return false;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM)) {
if (priv->microcodeVersion != qemuCaps->microcodeVersion) {
VIR_DEBUG("Outdated capabilities for '%s': microcode version "
"changed (%u vs %u)",
qemuCaps->binary,
priv->microcodeVersion,
qemuCaps->microcodeVersion);
return false;
}
if (STRNEQ_NULLABLE(priv->kernelVersion, qemuCaps->kernelVersion)) {
VIR_DEBUG("Outdated capabilities for '%s': kernel version changed "
"('%s' vs '%s')",
qemuCaps->binary,
priv->kernelVersion,
qemuCaps->kernelVersion);
return false;
}
}
return true;
}
static void virQEMUCapsMonitorNotify(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
virDomainObjPtr vm ATTRIBUTE_UNUSED,
void *opaque ATTRIBUTE_UNUSED)
{
}
static qemuMonitorCallbacks callbacks = {
.eofNotify = virQEMUCapsMonitorNotify,
.errorNotify = virQEMUCapsMonitorNotify,
};
/**
* virQEMUCapsInitQMPArch:
* @qemuCaps: QEMU capabilities
* @mon: QEMU monitor
*
* Initialize the architecture for @qemuCaps by asking @mon.
*
* Returns: 0 on success, <0 on failure
*/
static int
virQEMUCapsInitQMPArch(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon)
{
char *archstr = NULL;
int ret = -1;
if (!(archstr = qemuMonitorGetTargetArch(mon)))
goto cleanup;
if ((qemuCaps->arch = virQEMUCapsArchFromString(archstr)) == VIR_ARCH_NONE) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unknown QEMU arch %s"), archstr);
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(archstr);
return ret;
}
/**
* virQEMUCapsInitQMPBasicArch:
* @qemuCaps: QEMU capabilities
*
* Initialize @qemuCaps with basic architecture-dependent capabilities.
*/
void
virQEMUCapsInitQMPBasicArch(virQEMUCapsPtr qemuCaps)
{
/* ACPI only works on x86 and aarch64 */
if (ARCH_IS_X86(qemuCaps->arch) ||
qemuCaps->arch == VIR_ARCH_AARCH64) {
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_ACPI);
}
/* HPET and KVM PIT are x86 specific */
if (ARCH_IS_X86(qemuCaps->arch)) {
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_HPET);
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_KVM_PIT);
}
}
static int
virQEMUCapsProbeQMPSchemaCapabilities(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon)
{
struct virQEMUCapsStringFlags *entry;
virJSONValuePtr schemareply;
virHashTablePtr schema = NULL;
size_t i;
if (!(schemareply = qemuMonitorQueryQMPSchema(mon)))
return -1;
if (!(schema = virQEMUQAPISchemaConvert(schemareply)))
return -1;
schemareply = NULL;
for (i = 0; i < ARRAY_CARDINALITY(virQEMUCapsQMPSchemaQueries); i++) {
entry = virQEMUCapsQMPSchemaQueries + i;
if (virQEMUQAPISchemaPathExists(entry->value, schema))
virQEMUCapsSet(qemuCaps, entry->flag);
}
virHashFree(schema);
return 0;
}
#define QEMU_MIN_MAJOR 1
#define QEMU_MIN_MINOR 5
#define QEMU_MIN_MICRO 0
int
virQEMUCapsInitQMPMonitor(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon)
{
int ret = -1;
int major, minor, micro;
char *package = NULL;
/* @mon is supposed to be locked by callee */
if (qemuMonitorSetCapabilities(mon) < 0) {
VIR_DEBUG("Failed to set monitor capabilities %s",
virGetLastErrorMessage());
ret = 0;
goto cleanup;
}
if (qemuMonitorGetVersion(mon,
&major, &minor, &micro,
&package) < 0) {
VIR_DEBUG("Failed to query monitor version %s",
virGetLastErrorMessage());
ret = 0;
goto cleanup;
}
VIR_DEBUG("Got version %d.%d.%d (%s)",
major, minor, micro, NULLSTR(package));
if (major < QEMU_MIN_MAJOR ||
(major == QEMU_MIN_MAJOR && minor < QEMU_MIN_MINOR)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("QEMU version >= %d.%d.%d is required, but %d.%d.%d found"),
QEMU_MIN_MAJOR, QEMU_MIN_MINOR, QEMU_MIN_MICRO,
major, minor, micro);
goto cleanup;
}
qemuCaps->version = major * 1000000 + minor * 1000 + micro;
qemuCaps->package = package;
qemuCaps->usedQMP = true;
if (virQEMUCapsInitQMPArch(qemuCaps, mon) < 0)
goto cleanup;
virQEMUCapsInitQMPBasicArch(qemuCaps);
/* WebSockets were introduced between 1.3.0 and 1.3.1 */
if (qemuCaps->version >= 1003001)
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VNC_WEBSOCKET);
/* -chardev spiceport is supported from 1.4.0, but usable through
* qapi only since 1.5.0, however, it still cannot be queried
* for as a capability */
if (qemuCaps->version >= 1005000)
virQEMUCapsSet(qemuCaps, QEMU_CAPS_CHARDEV_SPICEPORT);
if (qemuCaps->version >= 1006000)
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DEVICE_VIDEO_PRIMARY);
/* vmport option is supported v2.2.0 onwards */
if (qemuCaps->version >= 2002000)
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_VMPORT_OPT);
/* -cpu ...,aarch64=off supported in v2.3.0 and onwards. But it
isn't detectable via qmp at this point */
if (qemuCaps->arch == VIR_ARCH_AARCH64 &&
qemuCaps->version >= 2003000)
virQEMUCapsSet(qemuCaps, QEMU_CAPS_CPU_AARCH64_OFF);
/* vhost-user supports multi-queue from v2.4.0 onwards,
* but there is no way to query for that capability */
if (qemuCaps->version >= 2004000)
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VHOSTUSER_MULTIQUEUE);
/* smm option is supported from v2.4.0 */
if (qemuCaps->version >= 2004000)
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_SMM_OPT);
/* Since 2.4.50 ARM virt machine supports gic-version option */
if (qemuCaps->version >= 2004050)
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACH_VIRT_GIC_VERSION);
/* no way to query if -machine kernel_irqchip supports split */
if (qemuCaps->version >= 2006000)
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_KERNEL_IRQCHIP_SPLIT);
/* HPT resizing is supported since QEMU 2.10 on ppc64; unfortunately
* there's no sane way to probe for it */
if (qemuCaps->version >= 2010000 &&
ARCH_IS_PPC64(qemuCaps->arch)) {
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT);
}
/* no way to query for -numa dist */
if (qemuCaps->version >= 2010000)
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NUMA_DIST);
/* no way to query max-cpu-compat */
if (qemuCaps->version >= 2010000 &&
ARCH_IS_PPC64(qemuCaps->arch)) {
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_MAX_CPU_COMPAT);
}
if (virQEMUCapsProbeQMPCommands(qemuCaps, mon) < 0)
goto cleanup;
/* Some capabilities may differ depending on KVM state */
if (virQEMUCapsProbeQMPKVMState(qemuCaps, mon) < 0)
goto cleanup;
if (virQEMUCapsProbeQMPEvents(qemuCaps, mon) < 0)
goto cleanup;
if (virQEMUCapsProbeQMPObjects(qemuCaps, mon) < 0)
goto cleanup;
if (virQEMUCapsProbeQMPMachineTypes(qemuCaps, mon) < 0)
goto cleanup;
if (virQEMUCapsProbeQMPCPUDefinitions(qemuCaps, mon, false) < 0)
goto cleanup;
if (virQEMUCapsProbeQMPTPM(qemuCaps, mon) < 0)
goto cleanup;
if (virQEMUCapsProbeQMPCommandLine(qemuCaps, mon) < 0)
goto cleanup;
if (virQEMUCapsProbeQMPMigrationCapabilities(qemuCaps, mon) < 0)
goto cleanup;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_QMP_SCHEMA) &&
virQEMUCapsProbeQMPSchemaCapabilities(qemuCaps, mon) < 0)
goto cleanup;
if (virQEMUCapsProbeQMPHostCPU(qemuCaps, mon, false) < 0)
goto cleanup;
/* 'intel-iommu' shows up as a device since 2.2.0, but can
* not be used with -device until 2.7.0. Before that it
* requires -machine iommu=on. So we must clear the device
* capability we detected on older QEMUs
*/
if (qemuCaps->version < 2007000 &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_INTEL_IOMMU)) {
virQEMUCapsClear(qemuCaps, QEMU_CAPS_DEVICE_INTEL_IOMMU);
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_IOMMU);
}
/* GIC capabilities, eg. available GIC versions */
if ((qemuCaps->arch == VIR_ARCH_AARCH64 ||
qemuCaps->arch == VIR_ARCH_ARMV7L) &&
virQEMUCapsProbeQMPGICCapabilities(qemuCaps, mon) < 0)
goto cleanup;
/* Prealloc on NVDIMMs is broken on older QEMUs leading to
* user data corruption. If we are dealing with such version
* of QEMU pretend we don't know how to NVDIMM. */
if (qemuCaps->version < 2009000 &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_NVDIMM))
virQEMUCapsClear(qemuCaps, QEMU_CAPS_DEVICE_NVDIMM);
if (ARCH_IS_X86(qemuCaps->arch) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION))
virQEMUCapsSet(qemuCaps, QEMU_CAPS_CPU_CACHE);
ret = 0;
cleanup:
return ret;
}
int
virQEMUCapsInitQMPMonitorTCG(virQEMUCapsPtr qemuCaps ATTRIBUTE_UNUSED,
qemuMonitorPtr mon)
{
int ret = -1;
if (qemuMonitorSetCapabilities(mon) < 0) {
VIR_DEBUG("Failed to set monitor capabilities %s",
virGetLastErrorMessage());
ret = 0;
goto cleanup;
}
if (virQEMUCapsProbeQMPCPUDefinitions(qemuCaps, mon, true) < 0)
goto cleanup;
if (virQEMUCapsProbeQMPHostCPU(qemuCaps, mon, true) < 0)
goto cleanup;
ret = 0;
cleanup:
return ret;
}
typedef struct _virQEMUCapsInitQMPCommand virQEMUCapsInitQMPCommand;
typedef virQEMUCapsInitQMPCommand *virQEMUCapsInitQMPCommandPtr;
struct _virQEMUCapsInitQMPCommand {
char *binary;
uid_t runUid;
gid_t runGid;
char **qmperr;
char *monarg;
char *monpath;
char *pidfile;
virCommandPtr cmd;
qemuMonitorPtr mon;
virDomainChrSourceDef config;
pid_t pid;
virDomainObjPtr vm;
};
static void
virQEMUCapsInitQMPCommandAbort(virQEMUCapsInitQMPCommandPtr cmd)
{
if (cmd->mon)
virObjectUnlock(cmd->mon);
qemuMonitorClose(cmd->mon);
cmd->mon = NULL;
virCommandAbort(cmd->cmd);
virCommandFree(cmd->cmd);
cmd->cmd = NULL;
if (cmd->monpath)
ignore_value(unlink(cmd->monpath));
virDomainObjEndAPI(&cmd->vm);
if (cmd->pid != 0) {
char ebuf[1024];
VIR_DEBUG("Killing QMP caps process %lld", (long long) cmd->pid);
if (virProcessKill(cmd->pid, SIGKILL) < 0 && errno != ESRCH)
VIR_ERROR(_("Failed to kill process %lld: %s"),
(long long) cmd->pid,
virStrerror(errno, ebuf, sizeof(ebuf)));
VIR_FREE(*cmd->qmperr);
}
if (cmd->pidfile)
unlink(cmd->pidfile);
cmd->pid = 0;
}
static void
virQEMUCapsInitQMPCommandFree(virQEMUCapsInitQMPCommandPtr cmd)
{
if (!cmd)
return;
virQEMUCapsInitQMPCommandAbort(cmd);
VIR_FREE(cmd->binary);
VIR_FREE(cmd->monpath);
VIR_FREE(cmd->monarg);
VIR_FREE(cmd->pidfile);
VIR_FREE(cmd);
}
static virQEMUCapsInitQMPCommandPtr
virQEMUCapsInitQMPCommandNew(char *binary,
const char *libDir,
uid_t runUid,
gid_t runGid,
char **qmperr)
{
virQEMUCapsInitQMPCommandPtr cmd = NULL;
if (VIR_ALLOC(cmd) < 0)
goto error;
if (VIR_STRDUP(cmd->binary, binary) < 0)
goto error;
cmd->runUid = runUid;
cmd->runGid = runGid;
cmd->qmperr = qmperr;
/* the ".sock" sufix is important to avoid a possible clash with a qemu
* domain called "capabilities"
*/
if (virAsprintf(&cmd->monpath, "%s/%s", libDir,
"capabilities.monitor.sock") < 0)
goto error;
if (virAsprintf(&cmd->monarg, "unix:%s,server,nowait", cmd->monpath) < 0)
goto error;
/* ".pidfile" suffix is used rather than ".pid" to avoid a possible clash
* with a qemu domain called "capabilities"
* Normally we'd use runDir for pid files, but because we're using
* -daemonize we need QEMU to be allowed to create them, rather
* than libvirtd. So we're using libDir which QEMU can write to
*/
if (virAsprintf(&cmd->pidfile, "%s/%s", libDir, "capabilities.pidfile") < 0)
goto error;
virPidFileForceCleanupPath(cmd->pidfile);
cmd->config.type = VIR_DOMAIN_CHR_TYPE_UNIX;
cmd->config.data.nix.path = cmd->monpath;
cmd->config.data.nix.listen = false;
return cmd;
error:
virQEMUCapsInitQMPCommandFree(cmd);
return NULL;
}
/* Returns -1 on fatal error,
* 0 on success,
* 1 when probing QEMU failed
*/
static int
virQEMUCapsInitQMPCommandRun(virQEMUCapsInitQMPCommandPtr cmd,
bool forceTCG)
{
virDomainXMLOptionPtr xmlopt = NULL;
const char *machine;
int status = 0;
int ret = -1;
if (forceTCG)
machine = "none,accel=tcg";
else
machine = "none,accel=kvm:tcg";
VIR_DEBUG("Try to probe capabilities of '%s' via QMP, machine %s",
cmd->binary, machine);
/*
* We explicitly need to use -daemonize here, rather than
* virCommandDaemonize, because we need to synchronize
* with QEMU creating its monitor socket API. Using
* daemonize guarantees control won't return to libvirt
* until the socket is present.
*/
cmd->cmd = virCommandNewArgList(cmd->binary,
"-S",
"-no-user-config",
"-nodefaults",
"-nographic",
"-machine", machine,
"-qmp", cmd->monarg,
"-pidfile", cmd->pidfile,
"-daemonize",
NULL);
virCommandAddEnvPassCommon(cmd->cmd);
virCommandClearCaps(cmd->cmd);
virCommandSetGID(cmd->cmd, cmd->runGid);
virCommandSetUID(cmd->cmd, cmd->runUid);
virCommandSetErrorBuffer(cmd->cmd, cmd->qmperr);
/* Log, but otherwise ignore, non-zero status. */
if (virCommandRun(cmd->cmd, &status) < 0)
goto cleanup;
if (status != 0) {
VIR_DEBUG("QEMU %s exited with status %d: %s",
cmd->binary, status, *cmd->qmperr);
goto ignore;
}
if (virPidFileReadPath(cmd->pidfile, &cmd->pid) < 0) {
VIR_DEBUG("Failed to read pidfile %s", cmd->pidfile);
goto ignore;
}
if (!(xmlopt = virDomainXMLOptionNew(NULL, NULL, NULL, NULL, NULL)) ||
!(cmd->vm = virDomainObjNew(xmlopt)))
goto cleanup;
cmd->vm->pid = cmd->pid;
if (!(cmd->mon = qemuMonitorOpen(cmd->vm, &cmd->config, true,
0, &callbacks, NULL)))
goto ignore;
virObjectLock(cmd->mon);
ret = 0;
cleanup:
if (!cmd->mon)
virQEMUCapsInitQMPCommandAbort(cmd);
virObjectUnref(xmlopt);
return ret;
ignore:
ret = 1;
goto cleanup;
}
static int
virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
const char *libDir,
uid_t runUid,
gid_t runGid,
char **qmperr)
{
virQEMUCapsInitQMPCommandPtr cmd = NULL;
int ret = -1;
int rc;
if (!(cmd = virQEMUCapsInitQMPCommandNew(qemuCaps->binary, libDir,
runUid, runGid, qmperr)))
goto cleanup;
if ((rc = virQEMUCapsInitQMPCommandRun(cmd, false)) != 0) {
if (rc == 1)
ret = 0;
goto cleanup;
}
if (virQEMUCapsInitQMPMonitor(qemuCaps, cmd->mon) < 0)
goto cleanup;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM)) {
virQEMUCapsInitQMPCommandAbort(cmd);
if ((rc = virQEMUCapsInitQMPCommandRun(cmd, true)) != 0) {
if (rc == 1)
ret = 0;
goto cleanup;
}
if (virQEMUCapsInitQMPMonitorTCG(qemuCaps, cmd->mon) < 0)
goto cleanup;
}
ret = 0;
cleanup:
virQEMUCapsInitQMPCommandFree(cmd);
return ret;
}
#define MESSAGE_ID_CAPS_PROBE_FAILURE "8ae2f3fb-2dbe-498e-8fbd-012d40afa361"
static void
virQEMUCapsLogProbeFailure(const char *binary)
{
virLogMetadata meta[] = {
{ .key = "MESSAGE_ID", .s = MESSAGE_ID_CAPS_PROBE_FAILURE, .iv = 0 },
{ .key = "LIBVIRT_QEMU_BINARY", .s = binary, .iv = 0 },
{ .key = NULL },
};
virLogMessage(&virLogSelf,
VIR_LOG_WARN,
__FILE__, __LINE__, __func__,
meta,
_("Failed to probe capabilities for %s: %s"),
binary, virGetLastErrorMessage());
}
virQEMUCapsPtr
virQEMUCapsNewForBinaryInternal(virArch hostArch,
const char *binary,
const char *libDir,
uid_t runUid,
gid_t runGid,
unsigned int microcodeVersion,
const char *kernelVersion)
{
virQEMUCapsPtr qemuCaps;
struct stat sb;
char *qmperr = NULL;
if (!(qemuCaps = virQEMUCapsNew()))
goto error;
if (VIR_STRDUP(qemuCaps->binary, binary) < 0)
goto error;
/* We would also want to check faccessat if we cared about ACLs,
* but we don't. */
if (stat(binary, &sb) < 0) {
virReportSystemError(errno, _("Cannot check QEMU binary %s"),
binary);
goto error;
}
qemuCaps->ctime = sb.st_ctime;
/* Make sure the binary we are about to try exec'ing exists.
* Technically we could catch the exec() failure, but that's
* in a sub-process so it's hard to feed back a useful error.
*/
if (!virFileIsExecutable(binary)) {
virReportSystemError(errno, _("QEMU binary %s is not executable"),
binary);
goto error;
}
if (virQEMUCapsInitQMP(qemuCaps, libDir, runUid, runGid, &qmperr) < 0) {
virQEMUCapsLogProbeFailure(binary);
goto error;
}
if (!qemuCaps->usedQMP) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to probe QEMU binary with QMP: %s"),
qmperr ? qmperr : _("unknown error"));
virQEMUCapsLogProbeFailure(binary);
goto error;
}
qemuCaps->libvirtCtime = virGetSelfLastChanged();
qemuCaps->libvirtVersion = LIBVIR_VERSION_NUMBER;
virQEMUCapsInitHostCPUModel(qemuCaps, hostArch, VIR_DOMAIN_VIRT_KVM);
virQEMUCapsInitHostCPUModel(qemuCaps, hostArch, VIR_DOMAIN_VIRT_QEMU);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM)) {
qemuCaps->microcodeVersion = microcodeVersion;
if (VIR_STRDUP(qemuCaps->kernelVersion, kernelVersion) < 0)
goto error;
}
cleanup:
VIR_FREE(qmperr);
return qemuCaps;
error:
virObjectUnref(qemuCaps);
qemuCaps = NULL;
goto cleanup;
}
static void *
virQEMUCapsNewData(const char *binary,
void *privData)
{
virQEMUCapsCachePrivPtr priv = privData;
return virQEMUCapsNewForBinaryInternal(priv->hostArch,
binary,
priv->libDir,
priv->runUid,
priv->runGid,
priv->microcodeVersion,
priv->kernelVersion);
}
static void *
virQEMUCapsLoadFile(const char *filename,
const char *binary,
void *privData)
{
virQEMUCapsPtr qemuCaps = virQEMUCapsNew();
virQEMUCapsCachePrivPtr priv = privData;
if (!qemuCaps)
return NULL;
if (VIR_STRDUP(qemuCaps->binary, binary) < 0)
goto error;
if (virQEMUCapsLoadCache(priv->hostArch, qemuCaps, filename) < 0)
goto error;
cleanup:
return qemuCaps;
error:
virObjectUnref(qemuCaps);
qemuCaps = NULL;
goto cleanup;
}
struct virQEMUCapsMachineTypeFilter {
const char *machineType;
virQEMUCapsFlags *flags;
size_t nflags;
};
static const struct virQEMUCapsMachineTypeFilter virQEMUCapsMachineFilter[] = {
/* { "blah", virQEMUCapsMachineBLAHFilter,
ARRAY_CARDINALITY(virQEMUCapsMachineBLAHFilter) }, */
{ "", NULL, 0 },
};
void
virQEMUCapsFilterByMachineType(virQEMUCapsPtr qemuCaps,
const char *machineType)
{
size_t i;
if (!machineType)
return;
for (i = 0; i < ARRAY_CARDINALITY(virQEMUCapsMachineFilter); i++) {
const struct virQEMUCapsMachineTypeFilter *filter = &virQEMUCapsMachineFilter[i];
size_t j;
if (STRNEQ(filter->machineType, machineType))
continue;
for (j = 0; j < filter->nflags; j++)
virQEMUCapsClear(qemuCaps, filter->flags[j]);
}
if (!virQEMUCapsGetMachineHotplugCpus(qemuCaps, machineType))
virQEMUCapsClear(qemuCaps, QEMU_CAPS_QUERY_HOTPLUGGABLE_CPUS);
}
virFileCacheHandlers qemuCapsCacheHandlers = {
.isValid = virQEMUCapsIsValid,
.newData = virQEMUCapsNewData,
.loadFile = virQEMUCapsLoadFile,
.saveFile = virQEMUCapsSaveFile,
.privFree = virQEMUCapsCachePrivFree,
};
virFileCachePtr
virQEMUCapsCacheNew(const char *libDir,
const char *cacheDir,
uid_t runUid,
gid_t runGid,
unsigned int microcodeVersion)
{
char *capsCacheDir = NULL;
virFileCachePtr cache = NULL;
virQEMUCapsCachePrivPtr priv = NULL;
struct utsname uts;
if (virAsprintf(&capsCacheDir, "%s/capabilities", cacheDir) < 0)
goto error;
if (!(cache = virFileCacheNew(capsCacheDir, "xml", &qemuCapsCacheHandlers)))
goto error;
if (VIR_ALLOC(priv) < 0)
goto error;
virFileCacheSetPriv(cache, priv);
if (VIR_STRDUP(priv->libDir, libDir) < 0)
goto error;
priv->hostArch = virArchFromHost();
priv->runUid = runUid;
priv->runGid = runGid;
priv->microcodeVersion = microcodeVersion;
if (uname(&uts) == 0 &&
virAsprintf(&priv->kernelVersion, "%s %s", uts.release, uts.version) < 0)
goto error;
cleanup:
VIR_FREE(capsCacheDir);
return cache;
error:
virObjectUnref(cache);
cache = NULL;
goto cleanup;
}
virQEMUCapsPtr
virQEMUCapsCacheLookup(virFileCachePtr cache,
const char *binary)
{
virQEMUCapsPtr ret = NULL;
ret = virFileCacheLookup(cache, binary);
VIR_DEBUG("Returning caps %p for %s", ret, binary);
return ret;
}
virQEMUCapsPtr
virQEMUCapsCacheLookupCopy(virFileCachePtr cache,
const char *binary,
const char *machineType)
{
virQEMUCapsPtr qemuCaps = virQEMUCapsCacheLookup(cache, binary);
virQEMUCapsPtr ret;
if (!qemuCaps)
return NULL;
ret = virQEMUCapsNewCopy(qemuCaps);
virObjectUnref(qemuCaps);
if (!ret)
return NULL;
virQEMUCapsFilterByMachineType(ret, machineType);
return ret;
}
static int
virQEMUCapsCompareArch(const void *payload,
const void *name ATTRIBUTE_UNUSED,
const void *opaque)
{
struct virQEMUCapsSearchData *data = (struct virQEMUCapsSearchData *) opaque;
const virQEMUCaps *qemuCaps = payload;
return qemuCaps->arch == data->arch;
}
virQEMUCapsPtr
virQEMUCapsCacheLookupByArch(virFileCachePtr cache,
virArch arch)
{
virQEMUCapsPtr ret = NULL;
virArch target;
struct virQEMUCapsSearchData data = { .arch = arch };
ret = virFileCacheLookupByFunc(cache, virQEMUCapsCompareArch, &data);
if (!ret) {
/* If the first attempt at finding capabilities has failed, try
* again using the QEMU target as lookup key instead */
target = virQEMUCapsFindTarget(virArchFromHost(), data.arch);
if (target != data.arch) {
data.arch = target;
ret = virFileCacheLookupByFunc(cache, virQEMUCapsCompareArch, &data);
}
}
if (!ret) {
virReportError(VIR_ERR_INVALID_ARG,
_("unable to find any emulator to serve '%s' "
"architecture"), virArchToString(arch));
}
VIR_DEBUG("Returning caps %p for arch %s", ret, virArchToString(arch));
return ret;
}
bool
virQEMUCapsSupportsVmport(virQEMUCapsPtr qemuCaps,
const virDomainDef *def)
{
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_VMPORT_OPT))
return false;
return qemuDomainIsI440FX(def) ||
qemuDomainIsQ35(def) ||
STREQ(def->os.machine, "isapc");
}
bool
virQEMUCapsSupportsSMM(virQEMUCapsPtr qemuCaps,
const virDomainDef *def)
{
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_SMM_OPT))
return false;
return qemuDomainIsQ35(def);
}
bool
virQEMUCapsIsMachineSupported(virQEMUCapsPtr qemuCaps,
const char *canonical_machine)
{
size_t i;
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
if (STREQ(canonical_machine, qemuCaps->machineTypes[i].name))
return true;
}
return false;
}
const char *
virQEMUCapsGetDefaultMachine(virQEMUCapsPtr qemuCaps)
{
if (!qemuCaps->nmachineTypes)
return NULL;
return qemuCaps->machineTypes[0].name;
}
static int
virQEMUCapsFillDomainLoaderCaps(virDomainCapsLoaderPtr capsLoader,
virFirmwarePtr *firmwares,
size_t nfirmwares)
{
size_t i;
capsLoader->supported = true;
if (VIR_ALLOC_N(capsLoader->values.values, nfirmwares) < 0)
return -1;
for (i = 0; i < nfirmwares; i++) {
const char *filename = firmwares[i]->name;
if (!virFileExists(filename)) {
VIR_DEBUG("loader filename=%s does not exist", filename);
continue;
}
if (VIR_STRDUP(capsLoader->values.values[capsLoader->values.nvalues],
filename) < 0)
return -1;
capsLoader->values.nvalues++;
}
VIR_DOMAIN_CAPS_ENUM_SET(capsLoader->type,
VIR_DOMAIN_LOADER_TYPE_ROM);
VIR_DOMAIN_CAPS_ENUM_SET(capsLoader->type,
VIR_DOMAIN_LOADER_TYPE_PFLASH);
VIR_DOMAIN_CAPS_ENUM_SET(capsLoader->readonly,
VIR_TRISTATE_BOOL_YES,
VIR_TRISTATE_BOOL_NO);
return 0;
}
static int
virQEMUCapsFillDomainOSCaps(virDomainCapsOSPtr os,
virFirmwarePtr *firmwares,
size_t nfirmwares)
{
virDomainCapsLoaderPtr capsLoader = &os->loader;
os->supported = true;
if (virQEMUCapsFillDomainLoaderCaps(capsLoader, firmwares, nfirmwares) < 0)
return -1;
return 0;
}
static int
virQEMUCapsFillDomainCPUCaps(virCapsPtr caps,
virQEMUCapsPtr qemuCaps,
virDomainCapsPtr domCaps)
{
if (virQEMUCapsIsCPUModeSupported(qemuCaps, caps, domCaps->virttype,
VIR_CPU_MODE_HOST_PASSTHROUGH))
domCaps->cpu.hostPassthrough = true;
if (virQEMUCapsIsCPUModeSupported(qemuCaps, caps, domCaps->virttype,
VIR_CPU_MODE_HOST_MODEL)) {
virCPUDefPtr cpu = virQEMUCapsGetHostModel(qemuCaps, domCaps->virttype,
VIR_QEMU_CAPS_HOST_CPU_REPORTED);
domCaps->cpu.hostModel = virCPUDefCopy(cpu);
}
if (virQEMUCapsIsCPUModeSupported(qemuCaps, caps, domCaps->virttype,
VIR_CPU_MODE_CUSTOM)) {
virDomainCapsCPUModelsPtr filtered = NULL;
char **models = NULL;
const char *blacklist[] = { "host", NULL };
if (virCPUGetModels(domCaps->arch, &models) >= 0) {
virDomainCapsCPUModelsPtr cpus;
if (domCaps->virttype == VIR_DOMAIN_VIRT_KVM)
cpus = qemuCaps->kvmCPUModels;
else
cpus = qemuCaps->tcgCPUModels;
filtered = virDomainCapsCPUModelsFilter(cpus,
(const char **) models,
blacklist);
virStringListFree(models);
}
domCaps->cpu.custom = filtered;
}
return 0;
}
static int
virQEMUCapsFillDomainDeviceDiskCaps(virQEMUCapsPtr qemuCaps,
const char *machine,
virDomainCapsDeviceDiskPtr disk)
{
disk->supported = true;
/* QEMU supports all of these */
VIR_DOMAIN_CAPS_ENUM_SET(disk->diskDevice,
VIR_DOMAIN_DISK_DEVICE_DISK,
VIR_DOMAIN_DISK_DEVICE_CDROM,
VIR_DOMAIN_DISK_DEVICE_LUN);
/* PowerPC pseries based VMs do not support floppy device */
if (!qemuDomainMachineIsPSeries(machine, qemuCaps->arch))
VIR_DOMAIN_CAPS_ENUM_SET(disk->diskDevice, VIR_DOMAIN_DISK_DEVICE_FLOPPY);
if (qemuDomainMachineHasBuiltinIDE(machine))
VIR_DOMAIN_CAPS_ENUM_SET(disk->bus, VIR_DOMAIN_DISK_BUS_IDE);
VIR_DOMAIN_CAPS_ENUM_SET(disk->bus,
VIR_DOMAIN_DISK_BUS_SCSI,
VIR_DOMAIN_DISK_BUS_VIRTIO,
/* VIR_DOMAIN_DISK_BUS_SD */);
/* PowerPC pseries based VMs do not support floppy device */
if (!qemuDomainMachineIsPSeries(machine, qemuCaps->arch))
VIR_DOMAIN_CAPS_ENUM_SET(disk->bus, VIR_DOMAIN_DISK_BUS_FDC);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_USB_STORAGE))
VIR_DOMAIN_CAPS_ENUM_SET(disk->bus, VIR_DOMAIN_DISK_BUS_USB);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_ICH9_AHCI))
VIR_DOMAIN_CAPS_ENUM_SET(disk->bus, VIR_DOMAIN_DISK_BUS_SATA);
return 0;
}
static int
virQEMUCapsFillDomainDeviceGraphicsCaps(virQEMUCapsPtr qemuCaps,
virDomainCapsDeviceGraphicsPtr dev)
{
dev->supported = true;
VIR_DOMAIN_CAPS_ENUM_SET(dev->type, VIR_DOMAIN_GRAPHICS_TYPE_SDL);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC))
VIR_DOMAIN_CAPS_ENUM_SET(dev->type, VIR_DOMAIN_GRAPHICS_TYPE_VNC);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE))
VIR_DOMAIN_CAPS_ENUM_SET(dev->type, VIR_DOMAIN_GRAPHICS_TYPE_SPICE);
return 0;
}
static int
virQEMUCapsFillDomainDeviceVideoCaps(virQEMUCapsPtr qemuCaps,
virDomainCapsDeviceVideoPtr dev)
{
dev->supported = true;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VGA))
VIR_DOMAIN_CAPS_ENUM_SET(dev->modelType, VIR_DOMAIN_VIDEO_TYPE_VGA);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_CIRRUS_VGA))
VIR_DOMAIN_CAPS_ENUM_SET(dev->modelType, VIR_DOMAIN_VIDEO_TYPE_CIRRUS);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VMWARE_SVGA))
VIR_DOMAIN_CAPS_ENUM_SET(dev->modelType, VIR_DOMAIN_VIDEO_TYPE_VMVGA);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_QXL))
VIR_DOMAIN_CAPS_ENUM_SET(dev->modelType, VIR_DOMAIN_VIDEO_TYPE_QXL);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_GPU))
VIR_DOMAIN_CAPS_ENUM_SET(dev->modelType, VIR_DOMAIN_VIDEO_TYPE_VIRTIO);
return 0;
}
static int
virQEMUCapsFillDomainDeviceHostdevCaps(virQEMUCapsPtr qemuCaps,
virDomainCapsDeviceHostdevPtr hostdev)
{
bool supportsPassthroughKVM = qemuHostdevHostSupportsPassthroughLegacy();
bool supportsPassthroughVFIO = qemuHostdevHostSupportsPassthroughVFIO();
hostdev->supported = true;
/* VIR_DOMAIN_HOSTDEV_MODE_CAPABILITIES is for containers only */
VIR_DOMAIN_CAPS_ENUM_SET(hostdev->mode,
VIR_DOMAIN_HOSTDEV_MODE_SUBSYS);
VIR_DOMAIN_CAPS_ENUM_SET(hostdev->startupPolicy,
VIR_DOMAIN_STARTUP_POLICY_DEFAULT,
VIR_DOMAIN_STARTUP_POLICY_MANDATORY,
VIR_DOMAIN_STARTUP_POLICY_REQUISITE,
VIR_DOMAIN_STARTUP_POLICY_OPTIONAL);
VIR_DOMAIN_CAPS_ENUM_SET(hostdev->subsysType,
VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB,
VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_SCSI_GENERIC))
VIR_DOMAIN_CAPS_ENUM_SET(hostdev->subsysType,
VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI);
/* No virDomainHostdevCapsType for QEMU */
virDomainCapsEnumClear(&hostdev->capsType);
virDomainCapsEnumClear(&hostdev->pciBackend);
if (supportsPassthroughVFIO &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VFIO_PCI)) {
VIR_DOMAIN_CAPS_ENUM_SET(hostdev->pciBackend,
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_DEFAULT,
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO);
}
if (supportsPassthroughKVM) {
VIR_DOMAIN_CAPS_ENUM_SET(hostdev->pciBackend,
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_DEFAULT,
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_KVM);
}
return 0;
}
/**
* virQEMUCapsSupportsGICVersion:
* @qemuCaps: QEMU capabilities
* @virtType: domain type
* @version: GIC version
*
* Checks the QEMU binary with capabilities @qemuCaps supports a specific
* GIC version for a domain of type @virtType. If @qemuCaps is NULL, the GIC
* @version is considered unsupported.
*
* Returns: true if the binary supports the requested GIC version, false
* otherwise
*/
bool
virQEMUCapsSupportsGICVersion(virQEMUCapsPtr qemuCaps,
virDomainVirtType virtType,
virGICVersion version)
{
size_t i;
if (!qemuCaps)
return false;
for (i = 0; i < qemuCaps->ngicCapabilities; i++) {
virGICCapabilityPtr cap = &(qemuCaps->gicCapabilities[i]);
if (cap->version != version)
continue;
if (virtType == VIR_DOMAIN_VIRT_KVM &&
cap->implementation & VIR_GIC_IMPLEMENTATION_KERNEL)
return true;
if (virtType == VIR_DOMAIN_VIRT_QEMU &&
cap->implementation & VIR_GIC_IMPLEMENTATION_EMULATED)
return true;
}
return false;
}
/**
* virQEMUCapsFillDomainFeatureGICCaps:
* @qemuCaps: QEMU capabilities
* @domCaps: domain capabilities
*
* Take the information about GIC capabilities that has been obtained
* using the 'query-gic-capabilities' QMP command and stored in @qemuCaps
* and convert it to a form suitable for @domCaps.
*
* @qemuCaps contains complete information about the GIC capabilities for
* the corresponding QEMU binary, stored as custom objects; @domCaps, on
* the other hand, should only contain information about the GIC versions
* available for the specific combination of architecture, machine type
* and virtualization type. Moreover, a common format is used to store
* information about enumerations in @domCaps, so further processing is
* required.
*
* Returns: 0 on success, <0 on failure
*/
static int
virQEMUCapsFillDomainFeatureGICCaps(virQEMUCapsPtr qemuCaps,
virDomainCapsPtr domCaps)
{
virDomainCapsFeatureGICPtr gic = &domCaps->gic;
virGICVersion version;
if (!qemuDomainMachineIsVirt(domCaps->machine, domCaps->arch))
return 0;
for (version = VIR_GIC_VERSION_LAST - 1;
version > VIR_GIC_VERSION_NONE;
version--) {
if (!virQEMUCapsSupportsGICVersion(qemuCaps,
domCaps->virttype,
version))
continue;
gic->supported = true;
VIR_DOMAIN_CAPS_ENUM_SET(gic->version,
version);
}
return 0;
}
int
virQEMUCapsFillDomainCaps(virCapsPtr caps,
virDomainCapsPtr domCaps,
virQEMUCapsPtr qemuCaps,
virFirmwarePtr *firmwares,
size_t nfirmwares)
{
virDomainCapsOSPtr os = &domCaps->os;
virDomainCapsDeviceDiskPtr disk = &domCaps->disk;
virDomainCapsDeviceHostdevPtr hostdev = &domCaps->hostdev;
virDomainCapsDeviceGraphicsPtr graphics = &domCaps->graphics;
virDomainCapsDeviceVideoPtr video = &domCaps->video;
domCaps->maxvcpus = virQEMUCapsGetMachineMaxCpus(qemuCaps,
domCaps->machine);
if (domCaps->virttype == VIR_DOMAIN_VIRT_KVM) {
int hostmaxvcpus;
if ((hostmaxvcpus = virHostCPUGetKVMMaxVCPUs()) < 0)
return -1;
domCaps->maxvcpus = MIN(domCaps->maxvcpus, hostmaxvcpus);
}
if (virQEMUCapsFillDomainOSCaps(os, firmwares, nfirmwares) < 0 ||
virQEMUCapsFillDomainCPUCaps(caps, qemuCaps, domCaps) < 0 ||
virQEMUCapsFillDomainDeviceDiskCaps(qemuCaps,
domCaps->machine, disk) < 0 ||
virQEMUCapsFillDomainDeviceGraphicsCaps(qemuCaps, graphics) < 0 ||
virQEMUCapsFillDomainDeviceVideoCaps(qemuCaps, video) < 0 ||
virQEMUCapsFillDomainDeviceHostdevCaps(qemuCaps, hostdev) < 0 ||
virQEMUCapsFillDomainFeatureGICCaps(qemuCaps, domCaps) < 0)
return -1;
return 0;
}
void
virQEMUCapsSetMicrocodeVersion(virQEMUCapsPtr qemuCaps,
unsigned int microcodeVersion)
{
qemuCaps->microcodeVersion = microcodeVersion;
}
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