/* * 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 * . */ #include #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 LIBVIRT_QEMU_CAPSPRIV_H_ALLOW #include "qemu_capspriv.h" #include "qemu_qapi.h" #include "qemu_process.h" #include "qemu_firmware.h" #include #include #include #include #include #include #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, /* virQEMUCaps grouping marker */ /* 0 */ "vnc-colon", "no-reboot", "drive", "drive-boot", "name", /* 5 */ "uuid", "domid", "vnet-hdr", "migrate-kvm-stdio", "migrate-qemu-tcp", /* 10 */ "migrate-qemu-exec", "drive-cache-v2", "kvm", "drive-format", "vga", /* 15 */ "0.10", "pci-device", "mem-path", "drive-serial", "xen-domid", /* 20 */ "migrate-qemu-unix", "chardev", "enable-kvm", "monitor-json", "balloon", /* 25 */ "device", "sdl", "smp-topology", "netdev", "rtc", /* 30 */ "vhost-net", "rtc-td-hack", "no-hpet", "no-kvm-pit", "tdf", /* 35 */ "pci-configfd", "nodefconfig", "boot-menu", "fsdev", "nesting", /* 40 */ "name-process", "drive-readonly", "smbios-type", "vga-qxl", "spice", /* 45 */ "vga-none", "migrate-qemu-fd", "boot-index", "hda-duplex", "drive-aio", /* 50 */ "pci-multibus", "pci-bootindex", "ccid-emulated", "ccid-passthru", "chardev-spicevmc", /* 55 */ "device-spicevmc", "virtio-tx-alg", "device-qxl-vga", "pci-multifunction", "virtio-blk-pci.ioeventfd", /* 60 */ "sga", "virtio-blk-pci.event_idx", "virtio-net-pci.event_idx", "cache-directsync", "piix3-usb-uhci", /* 65 */ "piix4-usb-uhci", "usb-ehci", "ich9-usb-ehci1", "vt82c686b-usb-uhci", "pci-ohci", /* 70 */ "usb-redir", "usb-hub", "no-shutdown", "cache-unsafe", "rombar", /* 75 */ "ich9-ahci", "no-acpi", "fsdev-readonly", "virtio-blk-pci.scsi", "blk-sg-io", /* 80 */ "drive-copy-on-read", "cpu-host", "fsdev-writeout", "drive-iotune", "system_wakeup", /* 85 */ "scsi-disk.channel", "scsi-block", "transaction", "block-job-sync", "block-job-async", /* 90 */ "scsi-cd", "ide-cd", "no-user-config", "hda-micro", "dump-guest-memory", /* 95 */ "nec-usb-xhci", "virtio-s390", "balloon-event", "bridge", "lsi", /* 100 */ "virtio-scsi-pci", "blockio", "disable-s3", "disable-s4", "usb-redir.filter", /* 105 */ "ide-drive.wwn", "scsi-disk.wwn", "seccomp-sandbox", "reboot-timeout", "dump-guest-core", /* 110 */ "seamless-migration", "block-commit", "vnc", "drive-mirror", "usb-redir.bootindex", /* 115 */ "usb-host.bootindex", "blockdev-snapshot-sync", "qxl", "VGA", "cirrus-vga", /* 120 */ "vmware-svga", "device-video-primary", "s390-sclp", "usb-serial", "usb-net", /* 125 */ "add-fd", "nbd-server", "virtio-rng", "rng-random", "rng-egd", /* 130 */ "virtio-ccw", "dtb", "megasas", "ipv6-migration", "machine-opt", /* 135 */ "machine-usb-opt", "tpm-passthrough", "tpm-tis", "nvram", "pci-bridge", /* 140 */ "vfio-pci", "vfio-pci.bootindex", "scsi-generic", "scsi-generic.bootindex", "mem-merge", /* 145 */ "vnc-websocket", "drive-discard", "mlock", "vnc-share-policy", "device-del-event", /* 150 */ "dmi-to-pci-bridge", "i440fx-pci-hole64-size", "q35-pci-hole64-size", "usb-storage", "usb-storage.removable", /* 155 */ "virtio-mmio", "ich9-intel-hda", "kvm-pit-lost-tick-policy", "boot-strict", "pvpanic", /* 160 */ "enable-fips", "spice-file-xfer-disable", "spiceport", "usb-kbd", "host-pci-multidomain", /* 165 */ "msg-timestamp", "active-commit", "change-backing-file", "memory-backend-ram", "numa", /* 170 */ "memory-backend-file", "usb-audio", "rtc-reset-reinjection", "splash-timeout", "iothread", /* 175 */ "migrate-rdma", "ivshmem", "drive-iotune-max", "VGA.vgamem_mb", "vmware-svga.vgamem_mb", /* 180 */ "qxl.vgamem_mb", "qxl-vga.vgamem_mb", "pc-dimm", "machine-vmport-opt", "aes-key-wrap", /* 185 */ "dea-key-wrap", "pci-serial", "aarch64-off", "vhost-user-multiqueue", "migration-event", /* 190 */ "gpex-pcihost", "ioh3420", "x3130-upstream", "xio3130-downstream", "rtl8139", /* 195 */ "e1000", "virtio-net", "gic-version", "incoming-defer", "virtio-gpu", /* 200 */ "virtio-gpu.virgl", "virtio-keyboard", "virtio-mouse", "virtio-tablet", "virtio-input-host", /* 205 */ "chardev-file-append", "ich9-disable-s3", "ich9-disable-s4", "vserport-change-event", "virtio-balloon-pci.deflate-on-oom", /* 210 */ "mptsas1068", "spice-gl", "qxl.vram64_size_mb", "qxl-vga.vram64_size_mb", "chardev-logfile", /* 215 */ "debug-threads", "secret", "pxb", "pxb-pcie", "device-tray-moved-event", /* 220 */ "nec-usb-xhci-ports", "virtio-scsi-pci.iothread", "name-guest", "qxl.max_outputs", "qxl-vga.max_outputs", /* 225 */ "spice-unix", "drive-detect-zeroes", "tls-creds-x509", "display", "intel-iommu", /* 230 */ "smm", "virtio-pci-disable-legacy", "query-hotpluggable-cpus", "virtio-net.rx_queue_size", "machine-iommu", /* 235 */ "virtio-vga", "drive-iotune-max-length", "ivshmem-plain", "ivshmem-doorbell", "query-qmp-schema", /* 240 */ "gluster.debug_level", "vhost-scsi", "drive-iotune-group", "query-cpu-model-expansion", "virtio-net.host_mtu", /* 245 */ "spice-rendernode", "nvdimm", "pcie-root-port", "query-cpu-definitions", "block-write-threshold", /* 250 */ "query-named-block-nodes", "cpu-cache", "qemu-xhci", "kernel-irqchip", "kernel-irqchip.split", /* 255 */ "intel-iommu.intremap", "intel-iommu.caching-mode", "intel-iommu.eim", "intel-iommu.device-iotlb", "virtio.iommu_platform", /* 260 */ "virtio.ats", "loadparm", "spapr-pci-host-bridge", "spapr-pci-host-bridge.numa_node", "vnc-multi-servers", /* 265 */ "virtio-net.tx_queue_size", "chardev-reconnect", "virtio-gpu.max_outputs", "vxhs", "virtio-blk.num-queues", /* 270 */ "machine.pseries.resize-hpt", "vmcoreinfo", "spapr-vty", "sclplmconsole", "numa.dist", /* 275 */ "disk-share-rw", "iscsi.password-secret", "isa-serial", "pl011", "machine.pseries.max-cpu-compat", /* 280 */ "dump-completed", "virtio-gpu-ccw", "virtio-keyboard-ccw", "virtio-mouse-ccw", "virtio-tablet-ccw", /* 285 */ "qcow2-luks", "pcie-pci-bridge", "seccomp-blacklist", "query-cpus-fast", "disk-write-cache", /* 290 */ "nbd-tls", "tpm-crb", "pr-manager-helper", "qom-list-properties", "memory-backend-file.discard-data", /* 295 */ "virtual-css-bridge", "virtual-css-bridge.cssid-unrestricted", "vfio-ccw", "sdl-gl", "screendump_device", /* 300 */ "hda-output", "blockdev-del", "vmgenid", "vhost-vsock", "chardev-fd-pass", /* 305 */ "tpm-emulator", "mch", "mch.extended-tseg-mbytes", "sev-guest", "machine.pseries.cap-hpt-max-page-size", /* 310 */ "machine.pseries.cap-htm", "usb-storage.werror", "egl-headless", "vfio-pci.display", "blockdev", /* 315 */ "vfio-ap", "zpci", "memory-backend-memfd", "memory-backend-memfd.hugetlb", "iothread.poll-max-ns", /* 320 */ "machine.pseries.cap-nested-hv", "egl-headless.rendernode", "memory-backend-file.align", "memory-backend-file.pmem", "nvdimm.unarmed", /* 325 */ "scsi-disk.device_id", "virtio-pci-non-transitional", "overcommit", "query-current-machine", "machine.virt.iommu", /* 330 */ "bitmap-merge", "nbd-bitmap", "x86-max-cpu", "cpu-unavailable-features", "canonical-cpu-features", /* 335 */ "bochs-display", "migration-file-drop-cache", "dbus-vmstate", "vhost-user-gpu", "vhost-user-vga", /* 340 */ "incremental-backup", "query-cpu-model-baseline", "query-cpu-model-comparison", "ramfb", "machine.pseries.cap-ccf-assist", ); struct virQEMUCapsMachineType { char *name; char *alias; unsigned int maxCpus; bool hotplugCpus; bool qemuDefault; }; 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; bool kvmSupportsNesting; 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; virHashTablePtr domCapsCache; virDomainCapsCPUModelsPtr kvmCPUModels; virDomainCapsCPUModelsPtr tcgCPUModels; size_t nmachineTypes; struct virQEMUCapsMachineType *machineTypes; size_t ngicCapabilities; virGICCapability *gicCapabilities; virSEVCapability *sevCapabilities; virQEMUCapsHostCPUData kvmCPU; virQEMUCapsHostCPUData tcgCPU; }; struct virQEMUCapsSearchData { virArch arch; const char *binaryFilter; }; 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); 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); } const char *virQEMUCapsArchToString(virArch arch) { if (arch == VIR_ARCH_I686) return "i386"; else if (arch == VIR_ARCH_ARMV6L || 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) { /* host & guest arches match */ if (host == guest) return true; /* hostarch is x86_64 and guest arch is i686 (needs -cpu qemu32) */ if (host == VIR_ARCH_X86_64 && guest == VIR_ARCH_I686) return true; /* hostarch is aarch64 and guest arch is armv7l (needs -cpu aarch64=off) */ if (host == VIR_ARCH_AARCH64 && guest == VIR_ARCH_ARMV7L) return true; /* hostarch and guestarch are both ppc64 */ 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; /* armv7l guests can only take advantage of KVM on aarch64 hosts by * using the qemu-system-aarch64 binary, so look for that one first * to avoid using qemu-system-arm (and thus TCG) instead */ if (hostarch == VIR_ARCH_AARCH64 && guestarch == VIR_ARCH_ARMV7L) { archstr = virQEMUCapsArchToString(hostarch); if ((ret = virQEMUCapsFindBinary("qemu-system-%s", archstr)) != NULL) goto out; } /* 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; } out: return ret; } static int virQEMUCapsInitGuest(virCapsPtr caps, virFileCachePtr cache, virArch hostarch, virArch guestarch) { char *binary = NULL; virQEMUCapsPtr qemuCaps = 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); /* RHEL doesn't follow the usual naming for QEMU binaries and ships * a single binary named qemu-kvm outside of $PATH instead */ if (virQEMUCapsGuestIsNative(hostarch, guestarch) && !binary) { if (VIR_STRDUP(binary, "/usr/libexec/qemu-kvm") < 0) return -1; } /* Ignore binary if extracting version info fails */ if (binary) { if (!(qemuCaps = virQEMUCapsCacheLookup(cache, binary))) { virResetLastError(); VIR_FREE(binary); } } ret = virQEMUCapsInitGuestFromBinary(caps, binary, qemuCaps, guestarch); VIR_FREE(binary); virObjectUnref(qemuCaps); return ret; } int virQEMUCapsInitGuestFromBinary(virCapsPtr caps, const char *binary, virQEMUCapsPtr qemuCaps, virArch guestarch) { virCapsGuestPtr guest; virCapsGuestMachinePtr *machines = NULL; size_t nmachines = 0; int ret = -1; if (!binary) return 0; if (virQEMUCapsGetMachineTypesCaps(qemuCaps, &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 (!virCapabilitiesAddGuestFeature(guest, "deviceboot", true, false)) goto cleanup; if (!virCapabilitiesAddGuestFeature(guest, "disksnapshot", true, false)) goto cleanup; if (virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_QEMU, NULL, NULL, 0, NULL) == NULL) goto cleanup; if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM)) { if (virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_KVM, NULL, NULL, 0, NULL) == NULL) { goto cleanup; } } 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 virQEMUCapsProbeHostCPU(virArch hostArch, virDomainCapsCPUModelsPtr models) { return virCPUGetHost(hostArch, VIR_CPU_TYPE_GUEST, NULL, models); } 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 topology 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 IOMMU info */ virCapabilitiesHostInitIOMMU(caps); /* 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[] = { { "dump-guest-memory", QEMU_CAPS_DUMP_GUEST_MEMORY }, { "query-spice", QEMU_CAPS_SPICE }, { "query-vnc", QEMU_CAPS_VNC }, { "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 }, { "qom-list-properties", QEMU_CAPS_QOM_LIST_PROPERTIES }, { "blockdev-del", QEMU_CAPS_BLOCKDEV_DEL }, { "query-current-machine", QEMU_CAPS_QUERY_CURRENT_MACHINE }, { "block-dirty-bitmap-merge", QEMU_CAPS_BITMAP_MERGE }, { "query-cpu-model-baseline", QEMU_CAPS_QUERY_CPU_MODEL_BASELINE }, { "query-cpu-model-comparison", QEMU_CAPS_QUERY_CPU_MODEL_COMPARISON }, }; struct virQEMUCapsStringFlags virQEMUCapsMigration[] = { { "rdma-pin-all", QEMU_CAPS_MIGRATE_RDMA }, }; /* Use virQEMUCapsQMPSchemaQueries for querying parameters of events */ struct virQEMUCapsStringFlags virQEMUCapsEvents[] = { { "MIGRATION", QEMU_CAPS_MIGRATION_EVENT }, { "VSERPORT_CHANGE", QEMU_CAPS_VSERPORT_CHANGE }, { "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 }, { "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 }, { "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 }, { "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 }, { "pr-manager-helper", QEMU_CAPS_PR_MANAGER_HELPER }, { "virtual-css-bridge", QEMU_CAPS_CCW }, { "vfio-ccw", QEMU_CAPS_DEVICE_VFIO_CCW }, { "hda-output", QEMU_CAPS_HDA_OUTPUT }, { "vmgenid", QEMU_CAPS_DEVICE_VMGENID }, { "vhost-vsock-device", QEMU_CAPS_DEVICE_VHOST_VSOCK }, { "mch", QEMU_CAPS_DEVICE_MCH }, { "sev-guest", QEMU_CAPS_SEV_GUEST }, { "vfio-ap", QEMU_CAPS_DEVICE_VFIO_AP }, { "zpci", QEMU_CAPS_DEVICE_ZPCI }, { "memory-backend-memfd", QEMU_CAPS_OBJECT_MEMORY_MEMFD }, { "virtio-blk-pci-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-blk-pci-non-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-net-pci-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-net-pci-non-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "vhost-scsi-pci-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "vhost-scsi-pci-non-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-rng-pci-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-rng-pci-non-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-9p-pci-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-9p-pci-non-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-balloon-pci-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-balloon-pci-non-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "vhost-vsock-pci-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "vhost-vsock-pci-non-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-input-host-pci-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-input-host-pci-non-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-scsi-pci-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-scsi-pci-non-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-serial-pci-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "virtio-serial-pci-non-transitional", QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL }, { "max-x86_64-cpu", QEMU_CAPS_X86_MAX_CPU }, { "bochs-display", QEMU_CAPS_DEVICE_BOCHS_DISPLAY }, { "dbus-vmstate", QEMU_CAPS_DBUS_VMSTATE }, { "vhost-user-gpu", QEMU_CAPS_DEVICE_VHOST_USER_GPU }, { "vhost-user-vga", QEMU_CAPS_DEVICE_VHOST_USER_VGA }, { "ramfb", QEMU_CAPS_DEVICE_RAMFB }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsVirtioBalloon[] = { { "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 virQEMUCapsDevicePropsVirtioBlk[] = { { "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 }, { "write-cache", QEMU_CAPS_DISK_WRITE_CACHE }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsVirtioNet[] = { { "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 virQEMUCapsDevicePropsSpaprPCIHostBridge[] = { { "numa_node", QEMU_CAPS_SPAPR_PCI_HOST_BRIDGE_NUMA_NODE }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsVirtioSCSI[] = { { "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 virQEMUCapsDevicePropsVfioPCI[] = { { "display", QEMU_CAPS_VFIO_PCI_DISPLAY }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsSCSIDisk[] = { { "channel", QEMU_CAPS_SCSI_DISK_CHANNEL }, { "wwn", QEMU_CAPS_SCSI_DISK_WWN }, { "share-rw", QEMU_CAPS_DISK_SHARE_RW }, { "write-cache", QEMU_CAPS_DISK_WRITE_CACHE }, { "device_id", QEMU_CAPS_SCSI_DISK_DEVICE_ID }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsIDEDrive[] = { { "wwn", QEMU_CAPS_IDE_DRIVE_WWN }, { "share-rw", QEMU_CAPS_DISK_SHARE_RW }, { "write-cache", QEMU_CAPS_DISK_WRITE_CACHE }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsPiix4PM[] = { { "disable_s3", QEMU_CAPS_PIIX_DISABLE_S3 }, { "disable_s4", QEMU_CAPS_PIIX_DISABLE_S4 }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsUSBRedir[] = { { "filter", QEMU_CAPS_USB_REDIR_FILTER }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsI440FXPCIHost[] = { { "pci-hole64-size", QEMU_CAPS_I440FX_PCI_HOLE64_SIZE }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsQ35PCIHost[] = { { "pci-hole64-size", QEMU_CAPS_Q35_PCI_HOLE64_SIZE }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsUSBStorage[] = { { "removable", QEMU_CAPS_USB_STORAGE_REMOVABLE }, { "share-rw", QEMU_CAPS_DISK_SHARE_RW }, { "write-cache", QEMU_CAPS_DISK_WRITE_CACHE }, { "werror", QEMU_CAPS_USB_STORAGE_WERROR }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsKVMPit[] = { { "lost_tick_policy", QEMU_CAPS_KVM_PIT_TICK_POLICY }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsVGA[] = { { "vgamem_mb", QEMU_CAPS_VGA_VGAMEM }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsVmwareSvga[] = { { "vgamem_mb", QEMU_CAPS_VMWARE_SVGA_VGAMEM }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsQxl[] = { { "vgamem_mb", QEMU_CAPS_QXL_VGAMEM }, { "vram64_size_mb", QEMU_CAPS_QXL_VRAM64 }, { "max_outputs", QEMU_CAPS_QXL_MAX_OUTPUTS }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsVirtioGpu[] = { { "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 virQEMUCapsDevicePropsICH9[] = { { "disable_s3", QEMU_CAPS_ICH9_DISABLE_S3 }, { "disable_s4", QEMU_CAPS_ICH9_DISABLE_S4 }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsUSBNECXHCI[] = { { "p3", QEMU_CAPS_NEC_USB_XHCI_PORTS }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsIntelIOMMU[] = { { "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 }, }; static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVirtualCSSBridge[] = { { "cssid-unrestricted", QEMU_CAPS_CCW_CSSID_UNRESTRICTED }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsMCH[] = { { "extended-tseg-mbytes", QEMU_CAPS_MCH_EXTENDED_TSEG_MBYTES }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsNVDIMM[] = { { "unarmed", QEMU_CAPS_DEVICE_NVDIMM_UNARMED }, }; /* 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 }, { "nbd-server-start/arg-type/tls-creds", QEMU_CAPS_NBD_TLS }, { "screendump/arg-type/device", QEMU_CAPS_SCREENDUMP_DEVICE }, { "block-commit/arg-type/*top", QEMU_CAPS_ACTIVE_COMMIT }, { "query-iothreads/ret-type/poll-max-ns", QEMU_CAPS_IOTHREAD_POLLING }, { "query-display-options/ret-type/+egl-headless/rendernode", QEMU_CAPS_EGL_HEADLESS_RENDERNODE }, { "nbd-server-add/arg-type/bitmap", QEMU_CAPS_NBD_BITMAP }, { "blockdev-add/arg-type/+file/drop-cache", QEMU_CAPS_MIGRATION_FILE_DROP_CACHE }, }; typedef struct _virQEMUCapsObjectTypeProps virQEMUCapsObjectTypeProps; struct _virQEMUCapsObjectTypeProps { const char *type; struct virQEMUCapsStringFlags *props; size_t nprops; int capsCondition; }; typedef int (*virQEMUCapsObjectTypePropsCB)(qemuMonitorPtr mon, const char *type, char ***props); static virQEMUCapsObjectTypeProps virQEMUCapsDeviceProps[] = { { "virtio-blk-pci", virQEMUCapsDevicePropsVirtioBlk, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioBlk), -1 }, { "virtio-net-pci", virQEMUCapsDevicePropsVirtioNet, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioNet), QEMU_CAPS_DEVICE_VIRTIO_NET }, { "virtio-scsi-pci", virQEMUCapsDevicePropsVirtioSCSI, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioSCSI), QEMU_CAPS_VIRTIO_SCSI }, { "virtio-blk-ccw", virQEMUCapsDevicePropsVirtioBlk, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioBlk), QEMU_CAPS_VIRTIO_CCW }, { "virtio-net-ccw", virQEMUCapsDevicePropsVirtioNet, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioNet), QEMU_CAPS_DEVICE_VIRTIO_NET }, { "virtio-scsi-ccw", virQEMUCapsDevicePropsVirtioSCSI, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioSCSI), QEMU_CAPS_VIRTIO_SCSI }, { "virtio-blk-s390", virQEMUCapsDevicePropsVirtioBlk, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioBlk), QEMU_CAPS_VIRTIO_S390 }, { "virtio-net-s390", virQEMUCapsDevicePropsVirtioNet, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioNet), QEMU_CAPS_DEVICE_VIRTIO_NET }, { "vfio-pci", virQEMUCapsDevicePropsVfioPCI, G_N_ELEMENTS(virQEMUCapsDevicePropsVfioPCI), QEMU_CAPS_DEVICE_VFIO_PCI }, { "scsi-hd", virQEMUCapsDevicePropsSCSIDisk, G_N_ELEMENTS(virQEMUCapsDevicePropsSCSIDisk), -1 }, { "ide-hd", virQEMUCapsDevicePropsIDEDrive, G_N_ELEMENTS(virQEMUCapsDevicePropsIDEDrive), -1 }, { "PIIX4_PM", virQEMUCapsDevicePropsPiix4PM, G_N_ELEMENTS(virQEMUCapsDevicePropsPiix4PM), -1 }, { "usb-redir", virQEMUCapsDevicePropsUSBRedir, G_N_ELEMENTS(virQEMUCapsDevicePropsUSBRedir), QEMU_CAPS_USB_REDIR }, { "i440FX-pcihost", virQEMUCapsDevicePropsI440FXPCIHost, G_N_ELEMENTS(virQEMUCapsDevicePropsI440FXPCIHost), -1 }, { "q35-pcihost", virQEMUCapsDevicePropsQ35PCIHost, G_N_ELEMENTS(virQEMUCapsDevicePropsQ35PCIHost), -1 }, { "usb-storage", virQEMUCapsDevicePropsUSBStorage, G_N_ELEMENTS(virQEMUCapsDevicePropsUSBStorage), QEMU_CAPS_DEVICE_USB_STORAGE }, { "kvm-pit", virQEMUCapsDevicePropsKVMPit, G_N_ELEMENTS(virQEMUCapsDevicePropsKVMPit), -1 }, { "VGA", virQEMUCapsDevicePropsVGA, G_N_ELEMENTS(virQEMUCapsDevicePropsVGA), QEMU_CAPS_DEVICE_VGA }, { "vmware-svga", virQEMUCapsDevicePropsVmwareSvga, G_N_ELEMENTS(virQEMUCapsDevicePropsVmwareSvga), QEMU_CAPS_DEVICE_VMWARE_SVGA }, { "qxl", virQEMUCapsDevicePropsQxl, G_N_ELEMENTS(virQEMUCapsDevicePropsQxl), QEMU_CAPS_DEVICE_QXL }, { "virtio-gpu-pci", virQEMUCapsDevicePropsVirtioGpu, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioGpu), QEMU_CAPS_DEVICE_VIRTIO_GPU }, { "virtio-gpu-device", virQEMUCapsDevicePropsVirtioGpu, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioGpu), QEMU_CAPS_DEVICE_VIRTIO_GPU }, { "ICH9-LPC", virQEMUCapsDevicePropsICH9, G_N_ELEMENTS(virQEMUCapsDevicePropsICH9), -1 }, { "virtio-balloon-pci", virQEMUCapsDevicePropsVirtioBalloon, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioBalloon), -1 }, { "virtio-balloon-ccw", virQEMUCapsDevicePropsVirtioBalloon, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioBalloon), -1 }, { "virtio-balloon-device", virQEMUCapsDevicePropsVirtioBalloon, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioBalloon), -1 }, { "nec-usb-xhci", virQEMUCapsDevicePropsUSBNECXHCI, G_N_ELEMENTS(virQEMUCapsDevicePropsUSBNECXHCI), QEMU_CAPS_NEC_USB_XHCI }, { "intel-iommu", virQEMUCapsDevicePropsIntelIOMMU, G_N_ELEMENTS(virQEMUCapsDevicePropsIntelIOMMU), QEMU_CAPS_DEVICE_INTEL_IOMMU }, { "spapr-pci-host-bridge", virQEMUCapsDevicePropsSpaprPCIHostBridge, G_N_ELEMENTS(virQEMUCapsDevicePropsSpaprPCIHostBridge), QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE }, { "virtio-gpu-ccw", virQEMUCapsDevicePropsVirtioGpu, G_N_ELEMENTS(virQEMUCapsDevicePropsVirtioGpu), QEMU_CAPS_DEVICE_VIRTIO_GPU_CCW }, { "virtual-css-bridge", virQEMUCapsObjectPropsVirtualCSSBridge, G_N_ELEMENTS(virQEMUCapsObjectPropsVirtualCSSBridge), QEMU_CAPS_CCW }, { "mch", virQEMUCapsDevicePropsMCH, G_N_ELEMENTS(virQEMUCapsDevicePropsMCH), QEMU_CAPS_DEVICE_MCH }, { "nvdimm", virQEMUCapsDevicePropsNVDIMM, G_N_ELEMENTS(virQEMUCapsDevicePropsNVDIMM), QEMU_CAPS_DEVICE_NVDIMM }, }; static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsMemoryBackendFile[] = { { "discard-data", QEMU_CAPS_OBJECT_MEMORY_FILE_DISCARD }, { "align", QEMU_CAPS_OBJECT_MEMORY_FILE_ALIGN }, { "pmem", QEMU_CAPS_OBJECT_MEMORY_FILE_PMEM }, }; static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsMemoryBackendMemfd[] = { { "hugetlb", QEMU_CAPS_OBJECT_MEMORY_MEMFD_HUGETLB }, }; static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsMaxX86CPU[] = { { "unavailable-features", QEMU_CAPS_CPU_UNAVAILABLE_FEATURES }, }; static virQEMUCapsObjectTypeProps virQEMUCapsObjectProps[] = { { "memory-backend-file", virQEMUCapsObjectPropsMemoryBackendFile, G_N_ELEMENTS(virQEMUCapsObjectPropsMemoryBackendFile), QEMU_CAPS_OBJECT_MEMORY_FILE }, { "memory-backend-memfd", virQEMUCapsObjectPropsMemoryBackendMemfd, G_N_ELEMENTS(virQEMUCapsObjectPropsMemoryBackendMemfd), QEMU_CAPS_OBJECT_MEMORY_MEMFD }, { "max-x86_64-cpu", virQEMUCapsObjectPropsMaxX86CPU, G_N_ELEMENTS(virQEMUCapsObjectPropsMaxX86CPU), QEMU_CAPS_X86_MAX_CPU }, }; static struct virQEMUCapsStringFlags virQEMUCapsMachinePropsPSeries[] = { { "cap-hpt-max-page-size", QEMU_CAPS_MACHINE_PSERIES_CAP_HPT_MAX_PAGE_SIZE }, { "cap-htm", QEMU_CAPS_MACHINE_PSERIES_CAP_HTM }, { "cap-nested-hv", QEMU_CAPS_MACHINE_PSERIES_CAP_NESTED_HV }, { "cap-ccf-assist", QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST }, }; static struct virQEMUCapsStringFlags virQEMUCapsMachinePropsVirt[] = { { "iommu", QEMU_CAPS_MACHINE_VIRT_IOMMU }, }; static virQEMUCapsObjectTypeProps virQEMUCapsMachineProps[] = { { "pseries", virQEMUCapsMachinePropsPSeries, G_N_ELEMENTS(virQEMUCapsMachinePropsPSeries), -1 }, { "virt", virQEMUCapsMachinePropsVirt, G_N_ELEMENTS(virQEMUCapsMachinePropsVirt), -1 }, }; 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; if (!(qemuCaps->domCapsCache = virHashCreate(5, virObjectFreeHashData))) 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)); } static int virQEMUCapsSEVInfoCopy(virSEVCapabilityPtr *dst, virSEVCapabilityPtr src) { VIR_AUTOPTR(virSEVCapability) tmp = NULL; if (VIR_ALLOC(tmp) < 0 || VIR_STRDUP(tmp->pdh, src->pdh) < 0 || VIR_STRDUP(tmp->cert_chain, src->cert_chain) < 0) return -1; tmp->cbitpos = src->cbitpos; tmp->reduced_phys_bits = src->reduced_phys_bits; VIR_STEAL_PTR(*dst, tmp); return 0; } virQEMUCapsPtr virQEMUCapsNewCopy(virQEMUCapsPtr qemuCaps) { virQEMUCapsPtr ret = virQEMUCapsNew(); size_t i; if (!ret) return NULL; ret->usedQMP = qemuCaps->usedQMP; ret->kvmSupportsNesting = qemuCaps->kvmSupportsNesting; 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; ret->machineTypes[i].qemuDefault = qemuCaps->machineTypes[i].qemuDefault; } 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]; if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SEV_GUEST) && virQEMUCapsSEVInfoCopy(&ret->sevCapabilities, qemuCaps->sevCapabilities) < 0) goto error; 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); virHashFree(qemuCaps->domCapsCache); 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); virSEVCapabilitiesFree(qemuCaps->sevCapabilities); 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) virQEMUCapsSet(qemuCaps, 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 (<= 1.5.0, so basically forever) * mac99: 2.0.0 * g3beige: 2.0.0 * prep: 1.4.0 (<= 1.5.0, so basically forever) * 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 (STREQ(def->os.machine, "bamboo") || STREQ(def->os.machine, "mpc8544ds") || STREQ(def->os.machine, "prep")) { return true; } return false; } /* S390 supports PCI-multibus. */ if (ARCH_IS_S390(def->os.arch)) return true; /* If the virt machine, both on ARM and RISC-V, supports PCI, * then it also supports multibus */ if (qemuDomainIsARMVirt(def) || qemuDomainIsRISCVVirt(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; } virHashTablePtr virQEMUCapsGetDomainCapsCache(virQEMUCapsPtr qemuCaps) { return qemuCaps->domCapsCache; } 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; } const char * virQEMUCapsGetDefaultMachine(virQEMUCapsPtr qemuCaps) { size_t i; for (i = 0; i < qemuCaps->nmachineTypes; i++) { if (qemuCaps->machineTypes[i].qemuDefault) return qemuCaps->machineTypes[i].name; } return NULL; } 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; } virSEVCapabilityPtr virQEMUCapsGetSEVCapabilities(virQEMUCapsPtr qemuCaps) { return qemuCaps->sevCapabilities; } static int virQEMUCapsProbeQMPCommands(virQEMUCapsPtr qemuCaps, qemuMonitorPtr mon) { char **commands = NULL; int ncommands; if ((ncommands = qemuMonitorGetCommands(mon, &commands)) < 0) return -1; virQEMUCapsProcessStringFlags(qemuCaps, G_N_ELEMENTS(virQEMUCapsCommands), virQEMUCapsCommands, ncommands, commands); virStringListFreeCount(commands, ncommands); /* Probe for active commit of qemu 2.1. We don't need to query directly * if we have QMP schema support */ if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_QMP_SCHEMA) && qemuMonitorSupportsActiveCommit(mon)) virQEMUCapsSet(qemuCaps, QEMU_CAPS_ACTIVE_COMMIT); return 0; } static int virQEMUCapsProbeQMPEvents(virQEMUCapsPtr qemuCaps, qemuMonitorPtr mon) { char **events = NULL; int nevents; /* we can probe events also from the QMP schema so we can skip this here */ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_QMP_SCHEMA)) return 0; if ((nevents = qemuMonitorGetEvents(mon, &events)) < 0) return -1; virQEMUCapsProcessStringFlags(qemuCaps, G_N_ELEMENTS(virQEMUCapsEvents), virQEMUCapsEvents, nevents, events); virStringListFreeCount(events, nevents); return 0; } static int virQEMUCapsProbeQMPGenericProps(virQEMUCapsPtr qemuCaps, qemuMonitorPtr mon, virQEMUCapsObjectTypeProps *props, size_t nprops, virQEMUCapsObjectTypePropsCB propsGetCB) { int nvalues; char **values; size_t i; for (i = 0; i < nprops; i++) { const char *type = props[i].type; int cap = props[i].capsCondition; if (cap >= 0 && !virQEMUCapsGet(qemuCaps, cap)) continue; if ((nvalues = propsGetCB(mon, type, &values)) < 0) return -1; virQEMUCapsProcessStringFlags(qemuCaps, props[i].nprops, props[i].props, nvalues, values); virStringListFreeCount(values, nvalues); } return 0; } static int virQEMUCapsProbeQMPDevices(virQEMUCapsPtr qemuCaps, qemuMonitorPtr mon) { int nvalues; char **values; if ((nvalues = qemuMonitorGetObjectTypes(mon, &values)) < 0) return -1; virQEMUCapsProcessStringFlags(qemuCaps, G_N_ELEMENTS(virQEMUCapsObjectTypes), virQEMUCapsObjectTypes, nvalues, values); virStringListFreeCount(values, nvalues); if (virQEMUCapsProbeQMPGenericProps(qemuCaps, mon, virQEMUCapsDeviceProps, G_N_ELEMENTS(virQEMUCapsDeviceProps), qemuMonitorGetDeviceProps) < 0) return -1; if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_QOM_LIST_PROPERTIES) && virQEMUCapsProbeQMPGenericProps(qemuCaps, mon, virQEMUCapsObjectProps, G_N_ELEMENTS(virQEMUCapsObjectProps), qemuMonitorGetObjectProps) < 0) return -1; return 0; } /* Historically QEMU x86 targets defaulted to 'pc' machine type but * in future x86_64 might switch to 'q35'. Such a change is considered * an ABI break from libvirt's POV. Other QEMU targets may not declare * a default machine at all, causing libvirt to use the first reported * machine in the list. * * Here we record a preferred default machine for all arches, so * that we're not vulnerable to changes in QEMU defaults or machine * list ordering. */ static const char *preferredMachines[] = { NULL, /* VIR_ARCH_NONE (not a real arch :) */ "clipper", /* VIR_ARCH_ALPHA */ "integratorcp", /* VIR_ARCH_ARMV6L */ "integratorcp", /* VIR_ARCH_ARMV7L */ "integratorcp", /* VIR_ARCH_ARMV7B */ "integratorcp", /* VIR_ARCH_AARCH64 */ "axis-dev88", /* VIR_ARCH_CRIS */ "pc", /* VIR_ARCH_I686 */ NULL, /* VIR_ARCH_ITANIUM (doesn't exist in QEMU any more) */ "lm32-evr", /* VIR_ARCH_LM32 */ "mcf5208evb", /* VIR_ARCH_M68K */ "petalogix-s3adsp1800", /* VIR_ARCH_MICROBLAZE */ "petalogix-s3adsp1800", /* VIR_ARCH_MICROBLAZEEL */ "malta", /* VIR_ARCH_MIPS */ "malta", /* VIR_ARCH_MIPSEL */ "malta", /* VIR_ARCH_MIPS64 */ "malta", /* VIR_ARCH_MIPS64EL */ "or1k-sim", /* VIR_ARCH_OR32 */ NULL, /* VIR_ARCH_PARISC (no QEMU impl) */ NULL, /* VIR_ARCH_PARISC64 (no QEMU impl) */ "g3beige", /* VIR_ARCH_PPC */ "g3beige", /* VIR_ARCH_PPCLE */ "pseries", /* VIR_ARCH_PPC64 */ "pseries", /* VIR_ARCH_PPC64LE */ "bamboo", /* VIR_ARCH_PPCEMB */ "spike_v1.10", /* VIR_ARCH_RISCV32 */ "spike_v1.10", /* VIR_ARCH_RISCV64 */ NULL, /* VIR_ARCH_S390 (no QEMU impl) */ "s390-ccw-virtio", /* VIR_ARCH_S390X */ "shix", /* VIR_ARCH_SH4 */ "shix", /* VIR_ARCH_SH4EB */ "SS-5", /* VIR_ARCH_SPARC */ "sun4u", /* VIR_ARCH_SPARC64 */ "puv3", /* VIR_ARCH_UNICORE32 */ "pc", /* VIR_ARCH_X86_64 */ "sim", /* VIR_ARCH_XTENSA */ "sim", /* VIR_ARCH_XTENSAEB */ }; verify(G_N_ELEMENTS(preferredMachines) == VIR_ARCH_LAST); static int virQEMUCapsProbeQMPMachineTypes(virQEMUCapsPtr qemuCaps, qemuMonitorPtr mon) { qemuMonitorMachineInfoPtr *machines = NULL; int nmachines = 0; int ret = -1; size_t i; ssize_t defIdx = -1; ssize_t preferredIdx = -1; const char *preferredMachine = preferredMachines[qemuCaps->arch]; 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 (preferredMachine && (STREQ_NULLABLE(mach->alias, preferredMachine) || STREQ(mach->name, preferredMachine))) { preferredIdx = qemuCaps->nmachineTypes - 1; } if (machines[i]->isDefault) { mach->qemuDefault = true; defIdx = qemuCaps->nmachineTypes - 1; } } /* * We'll prefer to use our own historical default machine * to avoid mgmt apps seeing semantics changes when QEMU * alters its defaults. * * Our preferred machine might have been compiled out of * QEMU at build time though, so we still fallback to honouring * QEMU's reported default in that case */ if (preferredIdx == -1) preferredIdx = defIdx; if (preferredIdx != -1) virQEMUCapsSetDefaultMachine(qemuCaps, preferredIdx); ret = 0; cleanup: for (i = 0; i < nmachines; i++) qemuMonitorMachineInfoFree(machines[i]); VIR_FREE(machines); return ret; } static int virQEMUCapsProbeQMPMachineProps(virQEMUCapsPtr qemuCaps, qemuMonitorPtr mon) { char **values; int nvalues; size_t i; if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_QOM_LIST_PROPERTIES)) return 0; for (i = 0; i < G_N_ELEMENTS(virQEMUCapsMachineProps); i++) { virQEMUCapsObjectTypeProps props = virQEMUCapsMachineProps[i]; const char *canon = virQEMUCapsGetCanonicalMachine(qemuCaps, props.type); VIR_AUTOFREE(char *) type = NULL; if (!virQEMUCapsIsMachineSupported(qemuCaps, canon)) continue; /* The QOM type for machine types is the machine type name * followed by the -machine suffix */ if (virAsprintf(&type, "%s-machine", canon) < 0) return -1; if ((nvalues = qemuMonitorGetObjectProps(mon, type, &values)) < 0) return -1; virQEMUCapsProcessStringFlags(qemuCaps, props.nprops, props.props, nvalues, values); virStringListFreeCount(values, nvalues); } return 0; } virDomainCapsCPUModelsPtr virQEMUCapsFetchCPUDefinitions(qemuMonitorPtr mon, virArch arch) { virDomainCapsCPUModelsPtr models = NULL; qemuMonitorCPUDefInfoPtr *cpus = NULL; int ncpus = 0; size_t i; if ((ncpus = qemuMonitorGetCPUDefinitions(mon, &cpus)) < 0) return NULL; /* QEMU 2.11 for Power renamed all CPU models to lower case, we need to * translate them back to libvirt's upper case model names. */ if (ARCH_IS_PPC(arch)) { VIR_AUTOSTRINGLIST libvirtModels = NULL; char **name; if (virCPUGetModels(arch, &libvirtModels) < 0) goto error; for (name = libvirtModels; name && *name; name++) { for (i = 0; i < ncpus; i++) { if (STRCASENEQ(cpus[i]->name, *name)) continue; VIR_FREE(cpus[i]->name); if (VIR_STRDUP(cpus[i]->name, *name) < 0) goto error; } } } 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, qemuCaps->arch))) 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; virCPUDefPtr cpu; qemuMonitorCPUModelExpansionType type; virDomainVirtType virtType; bool fail_no_props = true; 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"; } if (VIR_ALLOC(cpu) < 0 || VIR_STRDUP(cpu->model, model) < 0) goto cleanup; /* 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. With new QEMU we always use the QEMU's canonical * names of all features and translate between them and our names. But for * older version of QEMU we need to do a full expansion on the result of * the initial static expansion to get all variants of feature names. */ if (ARCH_IS_X86(qemuCaps->arch) && !virQEMUCapsGet(qemuCaps, QEMU_CAPS_CANONICAL_CPU_FEATURES)) type = QEMU_MONITOR_CPU_MODEL_EXPANSION_STATIC_FULL; else type = QEMU_MONITOR_CPU_MODEL_EXPANSION_STATIC; /* Older s390 models do not report a feature set */ if (ARCH_IS_S390(qemuCaps->arch)) fail_no_props = false; if (qemuMonitorGetCPUModelExpansion(mon, type, cpu, true, fail_no_props, &modelInfo) < 0) goto cleanup; /* Try to check migratability of each feature. */ if (modelInfo && qemuMonitorGetCPUModelExpansion(mon, type, cpu, false, fail_no_props, &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; } virQEMUCapsSetCPUModelInfo(qemuCaps, virtType, modelInfo); modelInfo = NULL; ret = 0; cleanup: virHashFree(hash); qemuMonitorCPUModelInfoFree(nonMigratable); qemuMonitorCPUModelInfoFree(modelInfo); virCPUDefFree(cpu); return ret; } /** * Get NULL terminated list of features supported by QEMU. * * Returns -1 on error, * 0 on success (@features will be NULL if QEMU does not support this), * 1 when @features is filled in, but migratability info is not available. */ int virQEMUCapsGetCPUFeatures(virQEMUCapsPtr qemuCaps, virDomainVirtType virtType, bool migratable, char ***features) { qemuMonitorCPUModelInfoPtr modelInfo; char **list; size_t i; size_t n; int ret = -1; *features = NULL; modelInfo = virQEMUCapsGetCPUModelInfo(qemuCaps, virtType); if (!modelInfo) return 0; if (VIR_ALLOC_N(list, modelInfo->nprops + 1) < 0) return -1; n = 0; for (i = 0; i < modelInfo->nprops; i++) { qemuMonitorCPUPropertyPtr prop = modelInfo->props + i; if (migratable && prop->migratable == VIR_TRISTATE_BOOL_NO) continue; if (VIR_STRDUP(list[n++], virQEMUCapsCPUFeatureFromQEMU(qemuCaps, prop->name)) < 0) goto cleanup; } VIR_STEAL_PTR(*features, list); if (migratable && !modelInfo->migratability) ret = 1; else ret = 0; cleanup: virStringListFree(list); 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, }, { .type = VIR_DOMAIN_TPM_TYPE_EMULATOR, .caps = QEMU_CAPS_DEVICE_TPM_EMULATOR, }, }; const struct tpmTypeToCaps virQEMUCapsTPMModelsToCaps[] = { { .type = VIR_DOMAIN_TPM_MODEL_TIS, .caps = QEMU_CAPS_DEVICE_TPM_TIS, }, { .type = VIR_DOMAIN_TPM_MODEL_CRB, .caps = QEMU_CAPS_DEVICE_TPM_CRB, }, }; 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 < G_N_ELEMENTS(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 < G_N_ELEMENTS(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 (qemuMonitorGetKVMState(mon, &enabled, &present) < 0) return -1; if (present && enabled) virQEMUCapsSet(qemuCaps, QEMU_CAPS_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 }, { "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", "enable", QEMU_CAPS_SECCOMP_SANDBOX }, { "sandbox", "elevateprivileges", QEMU_CAPS_SECCOMP_BLACKLIST }, { "chardev", "fd", QEMU_CAPS_CHARDEV_FD_PASS }, { "overcommit", NULL, QEMU_CAPS_OVERCOMMIT }, }; static int virQEMUCapsProbeQMPCommandLine(virQEMUCapsPtr qemuCaps, qemuMonitorPtr mon) { bool found = false; int nvalues; char **values; size_t i, j; for (i = 0; i < G_N_ELEMENTS(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, G_N_ELEMENTS(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 (!(qemuCaps->arch == VIR_ARCH_AARCH64 || qemuCaps->arch == VIR_ARCH_ARMV6L || qemuCaps->arch == VIR_ARCH_ARMV7L)) return 0; if ((ncaps = qemuMonitorGetGICCapabilities(mon, &caps)) < 0) return -1; virQEMUCapsSetGICCapabilities(qemuCaps, caps, ncaps); return 0; } static int virQEMUCapsProbeQMPSEVCapabilities(virQEMUCapsPtr qemuCaps, qemuMonitorPtr mon) { int rc = -1; virSEVCapability *caps = NULL; if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SEV_GUEST)) return 0; if ((rc = qemuMonitorGetSEVCapabilities(mon, &caps)) < 0) return -1; /* SEV isn't actually supported */ if (rc == 0) { virQEMUCapsClear(qemuCaps, QEMU_CAPS_SEV_GUEST); return 0; } virSEVCapabilitiesFree(qemuCaps->sevCapabilities); qemuCaps->sevCapabilities = caps; return 0; } /* * Filter for features which should never be passed to QEMU. Either because * QEMU never supported them or they were dropped as they never did anything * useful. */ 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") || STREQ(name, "osxsave") || STREQ(name, "ospke")) return false; return true; } typedef struct _virQEMUCapsCPUFeatureTranslationTable virQEMUCapsCPUFeatureTranslationTable; typedef virQEMUCapsCPUFeatureTranslationTable *virQEMUCapsCPUFeatureTranslationTablePtr; struct _virQEMUCapsCPUFeatureTranslationTable { const char *libvirt; const char *qemu; }; virQEMUCapsCPUFeatureTranslationTable virQEMUCapsCPUFeaturesX86[] = { {"cmp_legacy", "cmp-legacy"}, {"ds_cpl", "ds-cpl"}, {"fxsr_opt", "fxsr-opt"}, {"kvm_pv_eoi", "kvm-pv-eoi"}, {"kvm_pv_unhalt", "kvm-pv-unhalt"}, {"lahf_lm", "lahf-lm"}, {"nodeid_msr", "nodeid-msr"}, {"pclmuldq", "pclmulqdq"}, {"perfctr_core", "perfctr-core"}, {"perfctr_nb", "perfctr-nb"}, {"tsc_adjust", "tsc-adjust"}, {NULL, NULL} }; static const char * virQEMUCapsCPUFeatureTranslate(virQEMUCapsPtr qemuCaps, const char *feature, bool reversed) { virQEMUCapsCPUFeatureTranslationTablePtr table = NULL; virQEMUCapsCPUFeatureTranslationTablePtr entry; if (ARCH_IS_X86(qemuCaps->arch)) table = virQEMUCapsCPUFeaturesX86; if (!table || !feature || !virQEMUCapsGet(qemuCaps, QEMU_CAPS_CANONICAL_CPU_FEATURES)) return feature; for (entry = table; entry->libvirt; entry++) { const char *key = reversed ? entry->qemu : entry->libvirt; if (STREQ(feature, key)) return reversed ? entry->libvirt : entry->qemu; } return feature; } const char * virQEMUCapsCPUFeatureToQEMU(virQEMUCapsPtr qemuCaps, const char *feature) { return virQEMUCapsCPUFeatureTranslate(qemuCaps, feature, false); } const char * virQEMUCapsCPUFeatureFromQEMU(virQEMUCapsPtr qemuCaps, const char *feature) { return virQEMUCapsCPUFeatureTranslate(qemuCaps, feature, 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; const char *name = virQEMUCapsCPUFeatureFromQEMU(qemuCaps, prop->name); if (prop->type != QEMU_MONITOR_CPU_PROPERTY_BOOLEAN) continue; if (VIR_STRDUP(feature->name, 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; } virCPUDataPtr virQEMUCapsGetCPUModelX86Data(virQEMUCapsPtr qemuCaps, qemuMonitorCPUModelInfoPtr model, bool migratable) { unsigned long long sigFamily = 0; unsigned long long sigModel = 0; unsigned long long sigStepping = 0; virCPUDataPtr data = NULL; virCPUDataPtr ret = NULL; size_t i; if (!(data = virCPUDataNew(VIR_ARCH_X86_64))) goto cleanup; for (i = 0; i < model->nprops; i++) { qemuMonitorCPUPropertyPtr prop = model->props + i; const char *name = virQEMUCapsCPUFeatureFromQEMU(qemuCaps, prop->name); switch (prop->type) { case QEMU_MONITOR_CPU_PROPERTY_BOOLEAN: if (!prop->value.boolean || (migratable && prop->migratable == VIR_TRISTATE_BOOL_NO)) continue; if (virCPUDataAddFeature(data, name) < 0) goto cleanup; break; case QEMU_MONITOR_CPU_PROPERTY_STRING: if (STREQ(name, "vendor") && virCPUx86DataSetVendor(data, prop->value.string) < 0) goto cleanup; break; case QEMU_MONITOR_CPU_PROPERTY_NUMBER: if (STREQ(name, "family")) sigFamily = prop->value.number; else if (STREQ(name, "model")) sigModel = prop->value.number; else if (STREQ(name, "stepping")) sigStepping = prop->value.number; break; case QEMU_MONITOR_CPU_PROPERTY_LAST: break; } } if (virCPUx86DataSetSignature(data, sigFamily, sigModel, sigStepping) < 0) goto cleanup; VIR_STEAL_PTR(ret, data); 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 using virCapsPtr->host.cpu, * -1 on error. */ static int virQEMUCapsInitCPUModelX86(virQEMUCapsPtr qemuCaps, virDomainVirtType type, qemuMonitorCPUModelInfoPtr model, virCPUDefPtr cpu, bool migratable) { virCPUDataPtr data = NULL; int ret = -1; if (!model) return 1; if (!(data = virQEMUCapsGetCPUModelX86Data(qemuCaps, model, migratable))) 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) { qemuMonitorCPUModelInfoPtr modelInfo = virQEMUCapsGetCPUModelInfo(qemuCaps, type); int ret = 1; if (migratable && modelInfo && !modelInfo->migratability) return 1; if (ARCH_IS_S390(qemuCaps->arch)) { ret = virQEMUCapsInitCPUModelS390(qemuCaps, type, modelInfo, cpu, migratable); } else if (ARCH_IS_X86(qemuCaps->arch)) { ret = virQEMUCapsInitCPUModelX86(qemuCaps, type, modelInfo, 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 cpuExpanded = 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 = virQEMUCapsProbeHostCPU(hostArch, virQEMUCapsGetCPUDefinitions(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 = virQEMUCapsProbeHostCPU(qemuCaps->arch, NULL))) goto error; if (!(cpuExpanded = virCPUDefCopy(cpu)) || virCPUExpandFeatures(qemuCaps->arch, cpuExpanded) < 0) goto error; for (i = 0; i < cpuExpanded->nfeatures; i++) { if (cpuExpanded->features[i].policy == VIR_CPU_FEATURE_REQUIRE && virCPUDefUpdateFeature(fullCPU, cpuExpanded->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; } if (ARCH_IS_X86(qemuCaps->arch) && !virQEMUCapsGet(qemuCaps, QEMU_CAPS_CPU_UNAVAILABLE_FEATURES)) { if (cpu && virCPUDefFilterFeatures(cpu, virCPUx86FeatureFilterDropMSR, NULL) < 0) goto error; if (migCPU && virCPUDefFilterFeatures(migCPU, virCPUx86FeatureFilterDropMSR, NULL) < 0) goto error; if (fullCPU && virCPUDefFilterFeatures(fullCPU, virCPUx86FeatureFilterDropMSR, NULL) < 0) goto error; } virQEMUCapsSetHostModel(qemuCaps, type, cpu, migCPU, fullCPU); cleanup: virCPUDefFree(cpuExpanded); virCPUDefFree(hostCPU); return; error: virCPUDefFree(cpu); virCPUDefFree(migCPU); virCPUDefFree(fullCPU); virResetLastError(); goto cleanup; } qemuMonitorCPUModelInfoPtr virQEMUCapsGetCPUModelInfo(virQEMUCapsPtr qemuCaps, virDomainVirtType type) { virQEMUCapsHostCPUDataPtr cpuData = virQEMUCapsGetHostCPUData(qemuCaps, type); return cpuData->info; } 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; VIR_XPATH_NODE_AUTORESTORE(ctxt); 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: 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; /* cache whether /dev/kvm is usable as runUid:runGuid */ virTristateBool kvmUsable; time_t kvmCtime; }; 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); } static int virQEMUCapsParseSEVInfo(virQEMUCapsPtr qemuCaps, xmlXPathContextPtr ctxt) { VIR_AUTOPTR(virSEVCapability) sev = NULL; if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SEV_GUEST)) return 0; if (virXPathBoolean("boolean(./sev)", ctxt) == 0) { virReportError(VIR_ERR_XML_ERROR, "%s", _("missing SEV platform data in QEMU " "capabilities cache")); return -1; } if (VIR_ALLOC(sev) < 0) return -1; if (virXPathUInt("string(./sev/cbitpos)", ctxt, &sev->cbitpos) < 0) { virReportError(VIR_ERR_XML_ERROR, "%s", _("missing or malformed SEV cbitpos information " "in QEMU capabilities cache")); return -1; } if (virXPathUInt("string(./sev/reducedPhysBits)", ctxt, &sev->reduced_phys_bits) < 0) { virReportError(VIR_ERR_XML_ERROR, "%s", _("missing or malformed SEV reducedPhysBits information " "in QEMU capabilities cache")); return -1; } if (!(sev->pdh = virXPathString("string(./sev/pdh)", ctxt))) { virReportError(VIR_ERR_XML_ERROR, "%s", _("missing SEV pdh information " "in QEMU capabilities cache")); return -1; } if (!(sev->cert_chain = virXPathString("string(./sev/certChain)", ctxt))) { virReportError(VIR_ERR_XML_ERROR, "%s", _("missing SEV certChain information " "in QEMU capabilities cache")); return -1; } VIR_STEAL_PTR(qemuCaps->sevCapabilities, sev); return 0; } /* * Parsing a doc that looks like * * * 234235253 * 234235253 * 1002016 * * * ... * * ... * * ... * */ 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 = virXMLXPathContextNew(doc))) goto cleanup; ctxt->node = xmlDocGetRootElement(doc); if (STRNEQ((const char *)ctxt->node->name, "qemuCaps")) { virReportError(VIR_ERR_XML_ERROR, _("unexpected root element <%s>, " "expecting "), 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; 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); str = virXMLPropString(nodes[i], "default"); if (STREQ_NULLABLE(str, "yes")) qemuCaps->machineTypes[i].qemuDefault = 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); if (virQEMUCapsParseSEVInfo(qemuCaps, ctxt) < 0) goto cleanup; virQEMUCapsInitHostCPUModel(qemuCaps, hostArch, VIR_DOMAIN_VIRT_KVM); virQEMUCapsInitHostCPUModel(qemuCaps, hostArch, VIR_DOMAIN_VIRT_QEMU); if (virXPathBoolean("boolean(./kvmSupportsNesting)", ctxt) > 0) qemuCaps->kvmSupportsNesting = true; ret = 0; cleanup: VIR_FREE(str); VIR_FREE(nodes); xmlXPathFreeContext(ctxt); xmlFreeDoc(doc); return ret; } static void virQEMUCapsFormatHostCPUModelInfo(virQEMUCapsPtr qemuCaps, virBufferPtr buf, virDomainVirtType type) { qemuMonitorCPUModelInfoPtr model = virQEMUCapsGetCPUModelInfo(qemuCaps, type); const char *typeStr = type == VIR_DOMAIN_VIRT_KVM ? "kvm" : "tcg"; size_t i; if (!model) return; virBufferAsprintf(buf, "\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, "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, "\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, "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, "\n", cpu->blockers[j]); virBufferAdjustIndent(buf, -2); virBufferAddLit(buf, "\n"); } else { virBufferAddLit(buf, "/>\n"); } } } static void virQEMUCapsFormatSEVInfo(virQEMUCapsPtr qemuCaps, virBufferPtr buf) { virSEVCapabilityPtr sev = virQEMUCapsGetSEVCapabilities(qemuCaps); virBufferAddLit(buf, "\n"); virBufferAdjustIndent(buf, 2); virBufferAsprintf(buf, "%u\n", sev->cbitpos); virBufferAsprintf(buf, "%u\n", sev->reduced_phys_bits); virBufferEscapeString(buf, "%s\n", sev->pdh); virBufferEscapeString(buf, "%s\n", sev->cert_chain); virBufferAdjustIndent(buf, -2); virBufferAddLit(buf, "\n"); } char * virQEMUCapsFormatCache(virQEMUCapsPtr qemuCaps) { virBuffer buf = VIR_BUFFER_INITIALIZER; char *ret = NULL; size_t i; virBufferAddLit(&buf, "\n"); virBufferAdjustIndent(&buf, 2); virBufferAsprintf(&buf, "%llu\n", (long long)qemuCaps->ctime); virBufferAsprintf(&buf, "%llu\n", (long long)qemuCaps->libvirtCtime); virBufferAsprintf(&buf, "%lu\n", (unsigned long)qemuCaps->libvirtVersion); for (i = 0; i < QEMU_CAPS_LAST; i++) { if (virQEMUCapsGet(qemuCaps, i)) { virBufferAsprintf(&buf, "\n", virQEMUCapsTypeToString(i)); } } virBufferAsprintf(&buf, "%d\n", qemuCaps->version); virBufferAsprintf(&buf, "%d\n", qemuCaps->kvmVersion); virBufferAsprintf(&buf, "%u\n", qemuCaps->microcodeVersion); if (qemuCaps->package) virBufferAsprintf(&buf, "%s\n", qemuCaps->package); if (qemuCaps->kernelVersion) virBufferAsprintf(&buf, "%s\n", qemuCaps->kernelVersion); virBufferAsprintf(&buf, "%s\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, "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'", qemuCaps->machineTypes[i].maxCpus); if (qemuCaps->machineTypes[i].qemuDefault) virBufferAddLit(&buf, " default='yes'"); virBufferAddLit(&buf, "/>\n"); } 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, "\n", cap->version, kernel ? "yes" : "no", emulated ? "yes" : "no"); } if (qemuCaps->sevCapabilities) virQEMUCapsFormatSEVInfo(qemuCaps, &buf); if (qemuCaps->kvmSupportsNesting) virBufferAddLit(&buf, "\n"); virBufferAdjustIndent(&buf, -2); virBufferAddLit(&buf, "\n"); if (virBufferCheckError(&buf) == 0) ret = virBufferContentAndReset(&buf); return ret; } static int virQEMUCapsSaveFile(void *data, const char *filename, void *privData G_GNUC_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; } /* Check the kernel module parameters 'nested' file to determine if enabled * * Intel: 'kvm_intel' uses 'Y' * AMD: 'kvm_amd' uses '1' * PPC64: 'kvm_hv' uses 'Y' * S390: 'kvm' uses '1' */ static bool virQEMUCapsKVMSupportsNesting(void) { static char const * const kmod[] = {"kvm_intel", "kvm_amd", "kvm_hv", "kvm"}; VIR_AUTOFREE(char *) value = NULL; int rc; size_t i; for (i = 0; i < G_N_ELEMENTS(kmod); i++) { VIR_FREE(value); rc = virFileReadValueString(&value, "/sys/module/%s/parameters/nested", kmod[i]); if (rc == -2) continue; if (rc < 0) { virResetLastError(); return false; } if (value[0] == 'Y' || value[0] == 'y' || value[0] == '1') return true; } return false; } /* Determine whether '/dev/kvm' is usable as QEMU user:QEMU group. */ static bool virQEMUCapsKVMUsable(virQEMUCapsCachePrivPtr priv) { struct stat sb; static const char *kvm_device = "/dev/kvm"; virTristateBool value; virTristateBool cached_value = priv->kvmUsable; time_t kvm_ctime; time_t cached_kvm_ctime = priv->kvmCtime; if (stat(kvm_device, &sb) < 0) { if (errno != ENOENT) { virReportSystemError(errno, _("Failed to stat %s"), kvm_device); } return false; } kvm_ctime = sb.st_ctime; if (kvm_ctime != cached_kvm_ctime) { VIR_DEBUG("%s has changed (%lld vs %lld)", kvm_device, (long long)kvm_ctime, (long long)cached_kvm_ctime); cached_value = VIR_TRISTATE_BOOL_ABSENT; } if (cached_value != VIR_TRISTATE_BOOL_ABSENT) return cached_value == VIR_TRISTATE_BOOL_YES; if (virFileAccessibleAs(kvm_device, R_OK | W_OK, priv->runUid, priv->runGid) == 0) { value = VIR_TRISTATE_BOOL_YES; } else { value = VIR_TRISTATE_BOOL_NO; } /* There is a race window between 'stat' and * 'virFileAccessibleAs'. However, since we're only interested in * detecting changes *after* the virFileAccessibleAs check, we can * neglect this here. */ priv->kvmCtime = kvm_ctime; priv->kvmUsable = value; return value == VIR_TRISTATE_BOOL_YES; } static bool virQEMUCapsIsValid(void *data, void *privData) { virQEMUCapsPtr qemuCaps = data; virQEMUCapsCachePrivPtr priv = privData; bool kvmUsable; struct stat sb; bool kvmSupportsNesting; 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; } if (!virQEMUCapsGuestIsNative(priv->hostArch, qemuCaps->arch)) { VIR_DEBUG("Guest arch (%s) is not native to host arch (%s), " "skipping KVM-related checks", virArchToString(qemuCaps->arch), virArchToString(priv->hostArch)); return true; } kvmUsable = virQEMUCapsKVMUsable(priv); if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_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; } kvmSupportsNesting = virQEMUCapsKVMSupportsNesting(); if (kvmSupportsNesting != qemuCaps->kvmSupportsNesting) { VIR_DEBUG("Outdated capabilities for '%s': kvm kernel nested " "value changed from %d", qemuCaps->binary, qemuCaps->kvmSupportsNesting); return false; } } return true; } /** * 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 is x86 specific */ if (ARCH_IS_X86(qemuCaps->arch)) virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_HPET); } /** * virQEMUCapsInitQMPVersionCaps: * @qemuCaps: QEMU capabilities * * Add all QEMU capabilities based on version of QEMU. */ static void virQEMUCapsInitQMPVersionCaps(virQEMUCapsPtr qemuCaps) { 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); /* sdl -gl option is supported from v2.4.0 (qemu commit id 0b71a5d5) */ if (qemuCaps->version >= 2004000) virQEMUCapsSet(qemuCaps, QEMU_CAPS_SDL_GL); /* 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); } /* '-display egl-headless' cmdline option is supported since QEMU 2.10, but * there's no way to probe it */ if (qemuCaps->version >= 2010000) virQEMUCapsSet(qemuCaps, QEMU_CAPS_EGL_HEADLESS); /* 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); } } /** * virQEMUCapsInitProcessCaps: * @qemuCaps: QEMU capabilities * * Some capability bits are enabled or disabled according to specific logic. * This function collects all capability processing after the capabilities * are detected. */ static void virQEMUCapsInitProcessCaps(virQEMUCapsPtr qemuCaps) { /* '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); } /* 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); if (ARCH_IS_S390(qemuCaps->arch)) { /* Legacy assurance for QEMU_CAPS_CCW */ if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CCW) && virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_CCW)) virQEMUCapsSet(qemuCaps, QEMU_CAPS_CCW); if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CCW_CSSID_UNRESTRICTED)) virQEMUCapsClear(qemuCaps, QEMU_CAPS_DEVICE_VFIO_CCW); } /* To avoid guest ABI regression, blockdev shall be enabled only when * we are able to pass the custom 'device_id' for SCSI disks and cdroms. */ if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_DISK_DEVICE_ID)) virQEMUCapsClear(qemuCaps, QEMU_CAPS_BLOCKDEV); if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_CPU_UNAVAILABLE_FEATURES)) virQEMUCapsSet(qemuCaps, QEMU_CAPS_CANONICAL_CPU_FEATURES); } static int virQEMUCapsProbeQMPSchemaCapabilities(virQEMUCapsPtr qemuCaps, qemuMonitorPtr mon) { struct virQEMUCapsStringFlags *entry; virJSONValuePtr schemareply; virHashTablePtr schema = NULL; size_t i; if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_QMP_SCHEMA)) return 0; if (!(schemareply = qemuMonitorQueryQMPSchema(mon))) return -1; if (!(schema = virQEMUQAPISchemaConvert(schemareply))) return -1; schemareply = NULL; for (i = 0; i < G_N_ELEMENTS(virQEMUCapsQMPSchemaQueries); i++) { entry = virQEMUCapsQMPSchemaQueries + i; if (virQEMUQAPISchemaPathExists(entry->value, schema)) virQEMUCapsSet(qemuCaps, entry->flag); } /* probe also for basic event support */ for (i = 0; i < G_N_ELEMENTS(virQEMUCapsEvents); i++) { entry = virQEMUCapsEvents + 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 major, minor, micro; VIR_AUTOFREE(char *) package = NULL; /* @mon is supposed to be locked by callee */ if (qemuMonitorGetVersion(mon, &major, &minor, µ, &package) < 0) return -1; 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); return -1; } qemuCaps->version = major * 1000000 + minor * 1000 + micro; VIR_STEAL_PTR(qemuCaps->package, package); qemuCaps->usedQMP = true; if (virQEMUCapsInitQMPArch(qemuCaps, mon) < 0) return -1; virQEMUCapsInitQMPBasicArch(qemuCaps); /* initiate all capapbilities based on qemu version */ virQEMUCapsInitQMPVersionCaps(qemuCaps); if (virQEMUCapsProbeQMPCommands(qemuCaps, mon) < 0) return -1; /* Some capabilities may differ depending on KVM state */ if (virQEMUCapsProbeQMPKVMState(qemuCaps, mon) < 0) return -1; if (virQEMUCapsProbeQMPEvents(qemuCaps, mon) < 0) return -1; if (virQEMUCapsProbeQMPDevices(qemuCaps, mon) < 0) return -1; if (virQEMUCapsProbeQMPMachineTypes(qemuCaps, mon) < 0) return -1; if (virQEMUCapsProbeQMPMachineProps(qemuCaps, mon) < 0) return -1; if (virQEMUCapsProbeQMPCPUDefinitions(qemuCaps, mon, false) < 0) return -1; if (virQEMUCapsProbeQMPTPM(qemuCaps, mon) < 0) return -1; if (virQEMUCapsProbeQMPCommandLine(qemuCaps, mon) < 0) return -1; if (virQEMUCapsProbeQMPMigrationCapabilities(qemuCaps, mon) < 0) return -1; if (virQEMUCapsProbeQMPSchemaCapabilities(qemuCaps, mon) < 0) return -1; if (virQEMUCapsProbeQMPGICCapabilities(qemuCaps, mon) < 0) return -1; if (virQEMUCapsProbeQMPSEVCapabilities(qemuCaps, mon) < 0) return -1; virQEMUCapsInitProcessCaps(qemuCaps); /* The following probes rely on other previously probed capabilities. * No capabilities bits should be set below this point. */ if (virQEMUCapsProbeQMPHostCPU(qemuCaps, mon, false) < 0) return -1; return 0; } int virQEMUCapsInitQMPMonitorTCG(virQEMUCapsPtr qemuCaps, qemuMonitorPtr mon) { if (virQEMUCapsProbeQMPCPUDefinitions(qemuCaps, mon, true) < 0) return -1; if (virQEMUCapsProbeQMPHostCPU(qemuCaps, mon, true) < 0) return -1; return 0; } #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()); } static int virQEMUCapsInitQMPSingle(virQEMUCapsPtr qemuCaps, const char *libDir, uid_t runUid, gid_t runGid, bool onlyTCG) { qemuProcessQMPPtr proc = NULL; int ret = -1; if (!(proc = qemuProcessQMPNew(qemuCaps->binary, libDir, runUid, runGid, onlyTCG))) goto cleanup; if (qemuProcessQMPStart(proc) < 0) goto cleanup; if (onlyTCG) ret = virQEMUCapsInitQMPMonitorTCG(qemuCaps, proc->mon); else ret = virQEMUCapsInitQMPMonitor(qemuCaps, proc->mon); cleanup: if (ret < 0) virQEMUCapsLogProbeFailure(qemuCaps->binary); qemuProcessQMPFree(proc); return ret; } static int virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps, const char *libDir, uid_t runUid, gid_t runGid) { if (virQEMUCapsInitQMPSingle(qemuCaps, libDir, runUid, runGid, false) < 0) return -1; /* * If KVM was enabled during the first probe, we need to explicitly probe * for TCG capabilities by asking the same binary again and turning KVM * off. */ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM) && virQEMUCapsInitQMPSingle(qemuCaps, libDir, runUid, runGid, true) < 0) return -1; return 0; } 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; 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) < 0) 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; qemuCaps->kvmSupportsNesting = virQEMUCapsKVMSupportsNesting(); } cleanup: 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, virHostCPUGetMicrocodeVersion(), 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, G_N_ELEMENTS(virQEMUCapsMachineBLAHFilter) }, */ { "", NULL, 0 }, }; void virQEMUCapsFilterByMachineType(virQEMUCapsPtr qemuCaps, const char *machineType) { size_t i; if (!machineType) return; for (i = 0; i < G_N_ELEMENTS(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) { 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->kvmUsable = VIR_TRISTATE_BOOL_ABSENT; 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) { virQEMUCapsCachePrivPtr priv = virFileCacheGetPriv(cache); virQEMUCapsPtr ret = NULL; priv->microcodeVersion = virHostCPUGetMicrocodeVersion(); 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 G_GNUC_UNUSED, const void *opaque) { struct virQEMUCapsSearchData *data = (struct virQEMUCapsSearchData *)opaque; const virQEMUCaps *qemuCaps = payload; if (qemuCaps->arch != data->arch) return false; if (data->binaryFilter && !strstr(qemuCaps->binary, data->binaryFilter)) { return false; } return true; } virQEMUCapsPtr virQEMUCapsCacheLookupByArch(virFileCachePtr cache, virArch arch) { virQEMUCapsCachePrivPtr priv = virFileCacheGetPriv(cache); virQEMUCapsPtr ret = NULL; const char *binaryFilters[] = { "qemu-system-", NULL, }; virArch archs[] = { arch, virQEMUCapsFindTarget(virArchFromHost(), arch), }; size_t i; size_t j; priv->microcodeVersion = virHostCPUGetMicrocodeVersion(); for (i = 0; i < G_N_ELEMENTS(binaryFilters); i++) { for (j = 0; j < G_N_ELEMENTS(archs); j++) { struct virQEMUCapsSearchData data = { .arch = archs[j], .binaryFilter = binaryFilters[i], }; ret = virFileCacheLookupByFunc(cache, virQEMUCapsCompareArch, &data); if (ret) goto done; } } virReportError(VIR_ERR_INVALID_ARG, _("unable to find any emulator to serve '%s' " "architecture"), virArchToString(arch)); done: VIR_DEBUG("Returning caps %p for arch %s", ret, virArchToString(arch)); return ret; } /** * virQEMUCapsCacheLookupDefault: * @cache: QEMU capabilities cache * @binary: optional path to QEMU binary * @archStr: optional guest architecture * @virttypeStr: optional virt type * @machine: optional machine type * @retArch: if non-NULL, guest architecture will be returned here * @retVirttype: if non-NULL, domain virt type will be returned here * @retMachine: if non-NULL, canonical machine type will be returned here * * Looks up the QEMU binary specified by @binary and @archStr, checks it can * provide the required @virttypeStr and @machine and returns its capabilities. * Sensible defaults are used for any argument which is NULL (the function can * even be called with all NULL arguments). * * Returns QEMU capabilities matching the requirements, NULL on error. */ virQEMUCapsPtr virQEMUCapsCacheLookupDefault(virFileCachePtr cache, const char *binary, const char *archStr, const char *virttypeStr, const char *machine, virArch *retArch, virDomainVirtType *retVirttype, const char **retMachine) { int virttype = VIR_DOMAIN_VIRT_NONE; int arch = virArchFromHost(); virDomainVirtType capsType; virQEMUCapsPtr qemuCaps = NULL; virQEMUCapsPtr ret = NULL; if (virttypeStr && (virttype = virDomainVirtTypeFromString(virttypeStr)) < 0) { virReportError(VIR_ERR_INVALID_ARG, _("unknown virttype: %s"), virttypeStr); goto cleanup; } if (archStr && (arch = virArchFromString(archStr)) == VIR_ARCH_NONE) { virReportError(VIR_ERR_INVALID_ARG, _("unknown architecture: %s"), archStr); goto cleanup; } if (binary) { virArch arch_from_caps; if (!(qemuCaps = virQEMUCapsCacheLookup(cache, binary))) goto cleanup; arch_from_caps = virQEMUCapsGetArch(qemuCaps); if (arch_from_caps != arch && !((ARCH_IS_X86(arch) && ARCH_IS_X86(arch_from_caps)) || (ARCH_IS_PPC(arch) && ARCH_IS_PPC(arch_from_caps)) || (ARCH_IS_ARM(arch) && ARCH_IS_ARM(arch_from_caps)) || (ARCH_IS_S390(arch) && ARCH_IS_S390(arch_from_caps)))) { virReportError(VIR_ERR_INVALID_ARG, _("architecture from emulator '%s' doesn't " "match given architecture '%s'"), virArchToString(arch_from_caps), virArchToString(arch)); goto cleanup; } } else { if (!(qemuCaps = virQEMUCapsCacheLookupByArch(cache, arch))) goto cleanup; binary = virQEMUCapsGetBinary(qemuCaps); } if (machine) { /* Turn @machine into canonical name */ machine = virQEMUCapsGetCanonicalMachine(qemuCaps, machine); if (!virQEMUCapsIsMachineSupported(qemuCaps, machine)) { virReportError(VIR_ERR_INVALID_ARG, _("the machine '%s' is not supported by emulator '%s'"), machine, binary); goto cleanup; } } else { machine = virQEMUCapsGetPreferredMachine(qemuCaps); } if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM)) capsType = VIR_DOMAIN_VIRT_KVM; else capsType = VIR_DOMAIN_VIRT_QEMU; if (virttype == VIR_DOMAIN_VIRT_NONE) virttype = capsType; if (virttype == VIR_DOMAIN_VIRT_KVM && capsType == VIR_DOMAIN_VIRT_QEMU) { virReportError(VIR_ERR_INVALID_ARG, _("KVM is not supported by '%s' on this host"), binary); goto cleanup; } if (retArch) *retArch = arch; if (retVirttype) *retVirttype = virttype; if (retMachine) *retMachine = machine; VIR_STEAL_PTR(ret, qemuCaps); cleanup: virObjectUnref(qemuCaps); 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 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; } /* * The preferred machine to use if none is listed explicitly * Note that this may differ from QEMU's own default machine */ const char * virQEMUCapsGetPreferredMachine(virQEMUCapsPtr qemuCaps) { if (!qemuCaps->nmachineTypes) return NULL; return qemuCaps->machineTypes[0].name; } static int virQEMUCapsFillDomainLoaderCaps(virDomainCapsLoaderPtr capsLoader, bool secure, virFirmwarePtr *firmwares, size_t nfirmwares) { size_t i; capsLoader->supported = VIR_TRISTATE_BOOL_YES; capsLoader->type.report = true; capsLoader->readonly.report = true; capsLoader->secure.report = true; if (VIR_ALLOC_N(capsLoader->values.values, nfirmwares) < 0) return -1; for (i = 0; i < nfirmwares; i++) { const char *filename = firmwares[i]->name; size_t j; if (!virFileExists(filename)) { VIR_DEBUG("loader filename=%s does not exist", filename); continue; } /* Put only unique FW images onto the list */ for (j = 0; j < capsLoader->values.nvalues; j++) { if (STREQ(filename, capsLoader->values.values[j])) break; } if (j != capsLoader->values.nvalues) 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); VIR_DOMAIN_CAPS_ENUM_SET(capsLoader->secure, VIR_TRISTATE_BOOL_NO); if (secure) VIR_DOMAIN_CAPS_ENUM_SET(capsLoader->secure, VIR_TRISTATE_BOOL_YES); return 0; } static int virQEMUCapsFillDomainOSCaps(virDomainCapsOSPtr os, const char *machine, virArch arch, bool privileged, virFirmwarePtr *firmwares, size_t nfirmwares) { virDomainCapsLoaderPtr capsLoader = &os->loader; uint64_t autoFirmwares = 0; bool secure = false; virFirmwarePtr *firmwaresAlt = NULL; size_t nfirmwaresAlt = 0; int ret = -1; os->supported = VIR_TRISTATE_BOOL_YES; os->firmware.report = true; if (qemuFirmwareGetSupported(machine, arch, privileged, &autoFirmwares, &secure, &firmwaresAlt, &nfirmwaresAlt) < 0) return -1; if (autoFirmwares & (1ULL << VIR_DOMAIN_OS_DEF_FIRMWARE_BIOS)) VIR_DOMAIN_CAPS_ENUM_SET(os->firmware, VIR_DOMAIN_OS_DEF_FIRMWARE_BIOS); if (autoFirmwares & (1ULL << VIR_DOMAIN_OS_DEF_FIRMWARE_EFI)) VIR_DOMAIN_CAPS_ENUM_SET(os->firmware, VIR_DOMAIN_OS_DEF_FIRMWARE_EFI); if (virQEMUCapsFillDomainLoaderCaps(capsLoader, secure, firmwaresAlt ? firmwaresAlt : firmwares, firmwaresAlt ? nfirmwaresAlt : nfirmwares) < 0) goto cleanup; ret = 0; cleanup: virFirmwareFreeList(firmwaresAlt, nfirmwaresAlt); return ret; } 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 virQEMUCapsFillDomainIOThreadCaps(virQEMUCapsPtr qemuCaps, virDomainCapsPtr domCaps) { domCaps->iothreads = virTristateBoolFromBool( virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_IOTHREAD)); return 0; } static int virQEMUCapsFillDomainDeviceDiskCaps(virQEMUCapsPtr qemuCaps, const char *machine, virDomainCapsDeviceDiskPtr disk) { disk->supported = VIR_TRISTATE_BOOL_YES; disk->diskDevice.report = true; disk->bus.report = true; disk->model.report = 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); VIR_DOMAIN_CAPS_ENUM_SET(disk->bus, VIR_DOMAIN_DISK_BUS_FDC); } if (qemuDomainMachineHasBuiltinIDE(machine, qemuCaps->arch)) 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 */); 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); /* disk->model values */ VIR_DOMAIN_CAPS_ENUM_SET(disk->model, VIR_DOMAIN_DISK_MODEL_VIRTIO); if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY) || virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL)) { VIR_DOMAIN_CAPS_ENUM_SET(disk->model, VIR_DOMAIN_DISK_MODEL_VIRTIO_TRANSITIONAL); VIR_DOMAIN_CAPS_ENUM_SET(disk->model, VIR_DOMAIN_DISK_MODEL_VIRTIO_NON_TRANSITIONAL); } return 0; } static int virQEMUCapsFillDomainDeviceGraphicsCaps(virQEMUCapsPtr qemuCaps, virDomainCapsDeviceGraphicsPtr dev) { dev->supported = VIR_TRISTATE_BOOL_YES; dev->type.report = 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 = VIR_TRISTATE_BOOL_YES; dev->modelType.report = 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); if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_BOCHS_DISPLAY)) VIR_DOMAIN_CAPS_ENUM_SET(dev->modelType, VIR_DOMAIN_VIDEO_TYPE_BOCHS); return 0; } static int virQEMUCapsFillDomainDeviceHostdevCaps(virQEMUCapsPtr qemuCaps, virDomainCapsDeviceHostdevPtr hostdev) { bool supportsPassthroughVFIO = qemuHostdevHostSupportsPassthroughVFIO(); hostdev->supported = VIR_TRISTATE_BOOL_YES; hostdev->mode.report = true; hostdev->startupPolicy.report = true; hostdev->subsysType.report = true; hostdev->capsType.report = true; hostdev->pciBackend.report = 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, 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); } return 0; } static int virQEMUCapsFillDomainDeviceRNGCaps(virQEMUCapsPtr qemuCaps, virDomainCapsDeviceRNGPtr rng) { rng->supported = VIR_TRISTATE_BOOL_YES; rng->model.report = true; rng->backendModel.report = true; if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_RNG)) { VIR_DOMAIN_CAPS_ENUM_SET(rng->model, VIR_DOMAIN_RNG_MODEL_VIRTIO); if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL) || virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY)) { VIR_DOMAIN_CAPS_ENUM_SET(rng->model, VIR_DOMAIN_RNG_MODEL_VIRTIO_TRANSITIONAL, VIR_DOMAIN_RNG_MODEL_VIRTIO_NON_TRANSITIONAL); } } if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_RNG_EGD)) VIR_DOMAIN_CAPS_ENUM_SET(rng->backendModel, VIR_DOMAIN_RNG_BACKEND_EGD); if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_RNG_RANDOM)) VIR_DOMAIN_CAPS_ENUM_SET(rng->backendModel, VIR_DOMAIN_RNG_BACKEND_RANDOM); 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; gic->supported = VIR_TRISTATE_BOOL_NO; if (!qemuDomainMachineIsARMVirt(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 = VIR_TRISTATE_BOOL_YES; gic->version.report = true; VIR_DOMAIN_CAPS_ENUM_SET(gic->version, version); } return 0; } /** * virQEMUCapsFillDomainFeatureSEVCaps: * @qemuCaps: QEMU capabilities * @domCaps: domain capabilities * * Take the information about SEV capabilities that has been obtained * using the 'query-sev-capabilities' QMP command and stored in @qemuCaps * and convert it to a form suitable for @domCaps. * * Returns: 0 on success, -1 on failure */ static int virQEMUCapsFillDomainFeatureSEVCaps(virQEMUCapsPtr qemuCaps, virDomainCapsPtr domCaps) { virSEVCapability *cap = qemuCaps->sevCapabilities; VIR_AUTOPTR(virSEVCapability) sev = NULL; if (!cap) return 0; if (VIR_ALLOC(sev) < 0) return -1; if (VIR_STRDUP(sev->pdh, cap->pdh) < 0) return -1; if (VIR_STRDUP(sev->cert_chain, cap->cert_chain) < 0) return -1; sev->cbitpos = cap->cbitpos; sev->reduced_phys_bits = cap->reduced_phys_bits; VIR_STEAL_PTR(domCaps->sev, sev); return 0; } int virQEMUCapsFillDomainCaps(virCapsPtr caps, virDomainCapsPtr domCaps, virQEMUCapsPtr qemuCaps, bool privileged, 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; virDomainCapsDeviceRNGPtr rng = &domCaps->rng; 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); } domCaps->vmcoreinfo = virTristateBoolFromBool( virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VMCOREINFO)); domCaps->genid = virTristateBoolFromBool( virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VMGENID)); if (virQEMUCapsFillDomainOSCaps(os, domCaps->machine, domCaps->arch, privileged, firmwares, nfirmwares) < 0 || virQEMUCapsFillDomainCPUCaps(caps, qemuCaps, domCaps) < 0 || virQEMUCapsFillDomainIOThreadCaps(qemuCaps, domCaps) < 0 || virQEMUCapsFillDomainDeviceDiskCaps(qemuCaps, domCaps->machine, disk) < 0 || virQEMUCapsFillDomainDeviceGraphicsCaps(qemuCaps, graphics) < 0 || virQEMUCapsFillDomainDeviceVideoCaps(qemuCaps, video) < 0 || virQEMUCapsFillDomainDeviceHostdevCaps(qemuCaps, hostdev) < 0 || virQEMUCapsFillDomainDeviceRNGCaps(qemuCaps, rng) < 0 || virQEMUCapsFillDomainFeatureGICCaps(qemuCaps, domCaps) < 0 || virQEMUCapsFillDomainFeatureSEVCaps(qemuCaps, domCaps) < 0) return -1; return 0; } void virQEMUCapsSetMicrocodeVersion(virQEMUCapsPtr qemuCaps, unsigned int microcodeVersion) { qemuCaps->microcodeVersion = microcodeVersion; } /** * virQEMUCapsStripMachineAliases: * @qemuCaps: capabilities object to process * * Remove all aliases so that the tests depending on the latest capabilities * file can be stable when new files are added. */ void virQEMUCapsStripMachineAliases(virQEMUCapsPtr qemuCaps) { size_t i; for (i = 0; i < qemuCaps->nmachineTypes; i++) VIR_FREE(qemuCaps->machineTypes[i].alias); }