mirror of
https://gitlab.com/libvirt/libvirt.git
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4fa172215d
Starting with qemu 1.6, the qemu-system-arm vexpress-a9 model has a hardcoded virtio-mmio transport which enables attaching all virtio devices. On the command line, we have to use virtio-XXX-device rather than virtio-XXX-pci, thankfully s390 already set the precedent here so it's fairly straight forward. At the XML level, this adds a new device address type virtio-mmio. The controller and addressing don't have any subelements at the moment because we they aren't needed for this usecase, but could be added later if needed. Add a test case for an ARM guest with one of every virtio device enabled.
2863 lines
84 KiB
C
2863 lines
84 KiB
C
/*
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* qemu_capabilities.c: QEMU capabilities generation
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*
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* Copyright (C) 2006-2013 Red Hat, Inc.
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* Copyright (C) 2006 Daniel P. Berrange
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Author: Daniel P. Berrange <berrange@redhat.com>
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*/
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#include <config.h>
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#include "qemu_capabilities.h"
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#include "viralloc.h"
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#include "virlog.h"
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#include "virerror.h"
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#include "virfile.h"
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#include "virpidfile.h"
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#include "virprocess.h"
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#include "nodeinfo.h"
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#include "cpu/cpu.h"
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#include "domain_conf.h"
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#include "vircommand.h"
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#include "virbitmap.h"
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#include "virnodesuspend.h"
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#include "qemu_monitor.h"
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#include "virstring.h"
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#include <stdarg.h>
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#define VIR_FROM_THIS VIR_FROM_QEMU
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/* While not public, these strings must not change. They
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* are used in domain status files which are read on
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* daemon restarts
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*/
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VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST,
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"kqemu", /* 0 */
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"vnc-colon",
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"no-reboot",
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"drive",
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"drive-boot",
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"name", /* 5 */
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"uuid",
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"domid",
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"vnet-hdr",
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"migrate-kvm-stdio",
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"migrate-qemu-tcp", /* 10 */
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"migrate-qemu-exec",
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"drive-cache-v2",
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"kvm",
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"drive-format",
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"vga", /* 15 */
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"0.10",
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"pci-device",
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"mem-path",
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"drive-serial",
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"xen-domid", /* 20 */
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"migrate-qemu-unix",
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"chardev",
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"enable-kvm",
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"monitor-json",
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"balloon", /* 25 */
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"device",
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"sdl",
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"smp-topology",
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"netdev",
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"rtc", /* 30 */
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"vhost-net",
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"rtc-td-hack",
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"no-hpet",
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"no-kvm-pit",
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"tdf", /* 35 */
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"pci-configfd",
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"nodefconfig",
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"boot-menu",
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"enable-kqemu",
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"fsdev", /* 40 */
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"nesting",
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"name-process",
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"drive-readonly",
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"smbios-type",
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"vga-qxl", /* 45 */
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"spice",
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"vga-none",
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"migrate-qemu-fd",
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"boot-index",
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"hda-duplex", /* 50 */
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"drive-aio",
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"pci-multibus",
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"pci-bootindex",
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"ccid-emulated",
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"ccid-passthru", /* 55 */
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"chardev-spicevmc",
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"device-spicevmc",
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"virtio-tx-alg",
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"device-qxl-vga",
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"pci-multifunction", /* 60 */
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"virtio-blk-pci.ioeventfd",
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"sga",
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"virtio-blk-pci.event_idx",
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"virtio-net-pci.event_idx",
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"cache-directsync", /* 65 */
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"piix3-usb-uhci",
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"piix4-usb-uhci",
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"usb-ehci",
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"ich9-usb-ehci1",
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"vt82c686b-usb-uhci", /* 70 */
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"pci-ohci",
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"usb-redir",
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"usb-hub",
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"no-shutdown",
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"cache-unsafe", /* 75 */
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"rombar",
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"ich9-ahci",
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"no-acpi",
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"fsdev-readonly",
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"virtio-blk-pci.scsi", /* 80 */
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"blk-sg-io",
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"drive-copy-on-read",
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"cpu-host",
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"fsdev-writeout",
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"drive-iotune", /* 85 */
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"system_wakeup",
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"scsi-disk.channel",
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"scsi-block",
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"transaction",
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"block-job-sync", /* 90 */
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"block-job-async",
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"scsi-cd",
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"ide-cd",
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"no-user-config",
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"hda-micro", /* 95 */
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"dump-guest-memory",
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"nec-usb-xhci",
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"virtio-s390",
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"balloon-event",
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"bridge", /* 100 */
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"lsi",
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"virtio-scsi-pci",
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"blockio",
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"disable-s3",
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"disable-s4", /* 105 */
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"usb-redir.filter",
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"ide-drive.wwn",
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"scsi-disk.wwn",
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"seccomp-sandbox",
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"reboot-timeout", /* 110 */
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"dump-guest-core",
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"seamless-migration",
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"block-commit",
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"vnc",
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"drive-mirror", /* 115 */
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"usb-redir.bootindex",
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"usb-host.bootindex",
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"blockdev-snapshot-sync",
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"qxl",
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"VGA", /* 120 */
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"cirrus-vga",
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"vmware-svga",
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"device-video-primary",
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"s390-sclp",
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"usb-serial", /* 125 */
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"usb-net",
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"add-fd",
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"nbd-server",
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"virtio-rng",
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"rng-random", /* 130 */
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"rng-egd",
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"virtio-ccw",
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"dtb",
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"megasas",
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"ipv6-migration", /* 135 */
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"machine-opt",
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"machine-usb-opt",
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"tpm-passthrough",
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"tpm-tis",
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"nvram", /* 140 */
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"pci-bridge",
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"vfio-pci",
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"vfio-pci.bootindex",
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"scsi-generic",
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"scsi-generic.bootindex", /* 145 */
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"mem-merge",
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"vnc-websocket",
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"drive-discard",
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"mlock",
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"vnc-share-policy", /* 150 */
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"device-del-event",
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"dmi-to-pci-bridge",
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"i440fx-pci-hole64-size",
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"q35-pci-hole64-size",
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"usb-storage", /* 155 */
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"usb-storage.removable",
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"virtio-mmio",
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);
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struct _virQEMUCaps {
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virObject object;
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bool usedQMP;
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char *binary;
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time_t mtime;
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virBitmapPtr flags;
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unsigned int version;
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unsigned int kvmVersion;
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virArch arch;
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size_t ncpuDefinitions;
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char **cpuDefinitions;
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size_t nmachineTypes;
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char **machineTypes;
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char **machineAliases;
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unsigned int *machineMaxCpus;
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};
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struct _virQEMUCapsCache {
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virMutex lock;
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virHashTablePtr binaries;
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char *libDir;
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char *runDir;
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uid_t runUid;
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gid_t runGid;
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};
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static virClassPtr virQEMUCapsClass;
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static void virQEMUCapsDispose(void *obj);
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static int virQEMUCapsOnceInit(void)
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{
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if (!(virQEMUCapsClass = virClassNew(virClassForObject(),
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"virQEMUCaps",
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sizeof(virQEMUCaps),
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virQEMUCapsDispose)))
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return -1;
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return 0;
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}
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VIR_ONCE_GLOBAL_INIT(virQEMUCaps)
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static virArch virQEMUCapsArchFromString(const char *arch)
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{
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if (STREQ(arch, "i386"))
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return VIR_ARCH_I686;
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if (STREQ(arch, "arm"))
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return VIR_ARCH_ARMV7L;
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return virArchFromString(arch);
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}
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static const char *virQEMUCapsArchToString(virArch arch)
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{
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if (arch == VIR_ARCH_I686)
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return "i386";
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else if (arch == VIR_ARCH_ARMV7L)
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return "arm";
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return virArchToString(arch);
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}
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static virCommandPtr
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virQEMUCapsProbeCommand(const char *qemu,
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virQEMUCapsPtr qemuCaps,
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uid_t runUid, gid_t runGid)
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{
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virCommandPtr cmd = virCommandNew(qemu);
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if (qemuCaps) {
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if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_USER_CONFIG))
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virCommandAddArg(cmd, "-no-user-config");
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else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NODEFCONFIG))
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virCommandAddArg(cmd, "-nodefconfig");
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}
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virCommandAddEnvPassCommon(cmd);
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virCommandClearCaps(cmd);
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virCommandSetGID(cmd, runGid);
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virCommandSetUID(cmd, runUid);
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return cmd;
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}
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static void
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virQEMUCapsSetDefaultMachine(virQEMUCapsPtr qemuCaps,
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size_t defIdx)
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{
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char *name = qemuCaps->machineTypes[defIdx];
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char *alias = qemuCaps->machineAliases[defIdx];
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unsigned int maxCpus = qemuCaps->machineMaxCpus[defIdx];
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memmove(qemuCaps->machineTypes + 1,
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qemuCaps->machineTypes,
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sizeof(qemuCaps->machineTypes[0]) * defIdx);
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memmove(qemuCaps->machineAliases + 1,
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qemuCaps->machineAliases,
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sizeof(qemuCaps->machineAliases[0]) * defIdx);
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memmove(qemuCaps->machineMaxCpus + 1,
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qemuCaps->machineMaxCpus,
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sizeof(qemuCaps->machineMaxCpus[0]) * defIdx);
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qemuCaps->machineTypes[0] = name;
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qemuCaps->machineAliases[0] = alias;
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qemuCaps->machineMaxCpus[0] = maxCpus;
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}
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/* Format is:
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* <machine> <desc> [(default)|(alias of <canonical>)]
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*/
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static int
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virQEMUCapsParseMachineTypesStr(const char *output,
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virQEMUCapsPtr qemuCaps)
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{
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const char *p = output;
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const char *next;
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size_t defIdx = 0;
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do {
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const char *t;
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char *name;
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char *canonical = NULL;
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if ((next = strchr(p, '\n')))
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++next;
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if (STRPREFIX(p, "Supported machines are:"))
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continue;
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if (!(t = strchr(p, ' ')) || (next && t >= next))
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continue;
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if (VIR_STRNDUP(name, p, t - p) < 0)
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return -1;
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p = t;
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if ((t = strstr(p, "(default)")) && (!next || t < next))
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defIdx = qemuCaps->nmachineTypes;
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if ((t = strstr(p, "(alias of ")) && (!next || t < next)) {
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p = t + strlen("(alias of ");
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if (!(t = strchr(p, ')')) || (next && t >= next))
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continue;
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if (VIR_STRNDUP(canonical, p, t - p) < 0) {
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VIR_FREE(name);
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return -1;
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}
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}
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if (VIR_REALLOC_N(qemuCaps->machineTypes, qemuCaps->nmachineTypes + 1) < 0 ||
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VIR_REALLOC_N(qemuCaps->machineAliases, qemuCaps->nmachineTypes + 1) < 0 ||
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VIR_REALLOC_N(qemuCaps->machineMaxCpus, qemuCaps->nmachineTypes + 1) < 0) {
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VIR_FREE(name);
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VIR_FREE(canonical);
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return -1;
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}
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qemuCaps->nmachineTypes++;
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if (canonical) {
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qemuCaps->machineTypes[qemuCaps->nmachineTypes-1] = canonical;
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qemuCaps->machineAliases[qemuCaps->nmachineTypes-1] = name;
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} else {
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qemuCaps->machineTypes[qemuCaps->nmachineTypes-1] = name;
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qemuCaps->machineAliases[qemuCaps->nmachineTypes-1] = NULL;
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}
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/* When parsing from command line we don't have information about maxCpus */
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qemuCaps->machineMaxCpus[qemuCaps->nmachineTypes-1] = 0;
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} while ((p = next));
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if (defIdx)
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virQEMUCapsSetDefaultMachine(qemuCaps, defIdx);
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return 0;
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}
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static int
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virQEMUCapsProbeMachineTypes(virQEMUCapsPtr qemuCaps,
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uid_t runUid, gid_t runGid)
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{
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char *output;
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int ret = -1;
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virCommandPtr cmd;
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int status;
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|
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/* Make sure the binary we are about to try exec'ing exists.
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* Technically we could catch the exec() failure, but that's
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* in a sub-process so it's hard to feed back a useful error.
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*/
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if (!virFileIsExecutable(qemuCaps->binary)) {
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virReportSystemError(errno, _("Cannot find QEMU binary %s"),
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qemuCaps->binary);
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return -1;
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}
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cmd = virQEMUCapsProbeCommand(qemuCaps->binary, qemuCaps, runUid, runGid);
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virCommandAddArgList(cmd, "-M", "?", NULL);
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virCommandSetOutputBuffer(cmd, &output);
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/* Ignore failure from older qemu that did not understand '-M ?'. */
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if (virCommandRun(cmd, &status) < 0)
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goto cleanup;
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if (virQEMUCapsParseMachineTypesStr(output, qemuCaps) < 0)
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goto cleanup;
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ret = 0;
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cleanup:
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VIR_FREE(output);
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virCommandFree(cmd);
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return ret;
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}
|
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|
|
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|
typedef int
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(*virQEMUCapsParseCPUModels)(const char *output,
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virQEMUCapsPtr qemuCaps);
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|
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/* Format:
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* <arch> <model>
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* qemu-0.13 encloses some model names in []:
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* <arch> [<model>]
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*/
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static int
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virQEMUCapsParseX86Models(const char *output,
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virQEMUCapsPtr qemuCaps)
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{
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const char *p = output;
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const char *next;
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int ret = -1;
|
|
|
|
do {
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const char *t;
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|
size_t len;
|
|
|
|
if ((next = strchr(p, '\n')))
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next++;
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if (!(t = strchr(p, ' ')) || (next && t >= next))
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continue;
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if (!STRPREFIX(p, "x86"))
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continue;
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p = t;
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while (*p == ' ')
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p++;
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|
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if (*p == '\0' || *p == '\n')
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continue;
|
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|
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if (VIR_EXPAND_N(qemuCaps->cpuDefinitions, qemuCaps->ncpuDefinitions, 1) < 0)
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goto cleanup;
|
|
|
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if (next)
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len = next - p - 1;
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else
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len = strlen(p);
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|
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if (len > 2 && *p == '[' && p[len - 1] == ']') {
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p++;
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len -= 2;
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}
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|
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if (VIR_STRNDUP(qemuCaps->cpuDefinitions[qemuCaps->ncpuDefinitions - 1], p, len) < 0)
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goto cleanup;
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} while ((p = next));
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|
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ret = 0;
|
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|
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cleanup:
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return ret;
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}
|
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|
|
/* ppc64 parser.
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|
* Format : PowerPC <machine> <description>
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*/
|
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static int
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virQEMUCapsParsePPCModels(const char *output,
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virQEMUCapsPtr qemuCaps)
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|
{
|
|
const char *p = output;
|
|
const char *next;
|
|
int ret = -1;
|
|
|
|
do {
|
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const char *t;
|
|
size_t len;
|
|
|
|
if ((next = strchr(p, '\n')))
|
|
next++;
|
|
|
|
if (!STRPREFIX(p, "PowerPC "))
|
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continue;
|
|
|
|
/* Skip the preceding sub-string "PowerPC " */
|
|
p += 8;
|
|
|
|
/*Malformed string, does not obey the format 'PowerPC <model> <desc>'*/
|
|
if (!(t = strchr(p, ' ')) || (next && t >= next))
|
|
continue;
|
|
|
|
if (*p == '\0')
|
|
break;
|
|
|
|
if (*p == '\n')
|
|
continue;
|
|
|
|
if (VIR_EXPAND_N(qemuCaps->cpuDefinitions, qemuCaps->ncpuDefinitions, 1) < 0)
|
|
goto cleanup;
|
|
|
|
len = t - p - 1;
|
|
|
|
if (VIR_STRNDUP(qemuCaps->cpuDefinitions[qemuCaps->ncpuDefinitions - 1], p, len) < 0)
|
|
goto cleanup;
|
|
} while ((p = next));
|
|
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
virQEMUCapsProbeCPUModels(virQEMUCapsPtr qemuCaps, uid_t runUid, gid_t runGid)
|
|
{
|
|
char *output = NULL;
|
|
int ret = -1;
|
|
virQEMUCapsParseCPUModels parse;
|
|
virCommandPtr cmd;
|
|
|
|
if (qemuCaps->arch == VIR_ARCH_I686 ||
|
|
qemuCaps->arch == VIR_ARCH_X86_64)
|
|
parse = virQEMUCapsParseX86Models;
|
|
else if (qemuCaps->arch == VIR_ARCH_PPC64)
|
|
parse = virQEMUCapsParsePPCModels;
|
|
else {
|
|
VIR_DEBUG("don't know how to parse %s CPU models",
|
|
virArchToString(qemuCaps->arch));
|
|
return 0;
|
|
}
|
|
|
|
cmd = virQEMUCapsProbeCommand(qemuCaps->binary, qemuCaps, runUid, runGid);
|
|
virCommandAddArgList(cmd, "-cpu", "?", NULL);
|
|
virCommandSetOutputBuffer(cmd, &output);
|
|
|
|
if (virCommandRun(cmd, NULL) < 0)
|
|
goto cleanup;
|
|
|
|
if (parse(output, qemuCaps) < 0)
|
|
goto cleanup;
|
|
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
VIR_FREE(output);
|
|
virCommandFree(cmd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static char *
|
|
virQEMUCapsFindBinaryForArch(virArch hostarch,
|
|
virArch guestarch)
|
|
{
|
|
char *ret;
|
|
const char *archstr = virQEMUCapsArchToString(guestarch);
|
|
char *binary;
|
|
|
|
if (virAsprintf(&binary, "qemu-system-%s", archstr) < 0)
|
|
return NULL;
|
|
|
|
ret = virFindFileInPath(binary);
|
|
VIR_FREE(binary);
|
|
if (ret && !virFileIsExecutable(ret))
|
|
VIR_FREE(ret);
|
|
|
|
if (guestarch == VIR_ARCH_I686 &&
|
|
!ret &&
|
|
hostarch == VIR_ARCH_X86_64) {
|
|
ret = virFindFileInPath("qemu-system-x86_64");
|
|
if (ret && !virFileIsExecutable(ret))
|
|
VIR_FREE(ret);
|
|
}
|
|
|
|
if (guestarch == VIR_ARCH_I686 &&
|
|
!ret) {
|
|
ret = virFindFileInPath("qemu");
|
|
if (ret && !virFileIsExecutable(ret))
|
|
VIR_FREE(ret);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static bool
|
|
virQEMUCapsIsValidForKVM(virArch hostarch,
|
|
virArch guestarch)
|
|
{
|
|
if (hostarch == guestarch)
|
|
return true;
|
|
if (hostarch == VIR_ARCH_X86_64 &&
|
|
guestarch == VIR_ARCH_I686)
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
static int
|
|
virQEMUCapsInitGuest(virCapsPtr caps,
|
|
virQEMUCapsCachePtr cache,
|
|
virArch hostarch,
|
|
virArch guestarch)
|
|
{
|
|
virCapsGuestPtr guest;
|
|
size_t i;
|
|
bool haskvm = false;
|
|
bool haskqemu = false;
|
|
char *kvmbin = NULL;
|
|
char *binary = NULL;
|
|
virCapsGuestMachinePtr *machines = NULL;
|
|
size_t nmachines = 0;
|
|
virQEMUCapsPtr qemubinCaps = NULL;
|
|
virQEMUCapsPtr kvmbinCaps = NULL;
|
|
int ret = -1;
|
|
|
|
/* Check for existence of base emulator, or alternate base
|
|
* which can be used with magic cpu choice
|
|
*/
|
|
binary = virQEMUCapsFindBinaryForArch(hostarch, guestarch);
|
|
|
|
/* Ignore binary if extracting version info fails */
|
|
if (binary) {
|
|
if (!(qemubinCaps = virQEMUCapsCacheLookup(cache, binary))) {
|
|
virResetLastError();
|
|
VIR_FREE(binary);
|
|
}
|
|
}
|
|
|
|
/* qemu-kvm/kvm binaries can only be used if
|
|
* - host & guest arches match
|
|
* Or
|
|
* - hostarch is x86_64 and guest arch is i686
|
|
* The latter simply needs "-cpu qemu32"
|
|
*/
|
|
if (virQEMUCapsIsValidForKVM(hostarch, guestarch)) {
|
|
const char *const kvmbins[] = { "/usr/libexec/qemu-kvm", /* RHEL */
|
|
"qemu-kvm", /* Fedora */
|
|
"kvm" }; /* Upstream .spec */
|
|
|
|
for (i = 0; i < ARRAY_CARDINALITY(kvmbins); ++i) {
|
|
kvmbin = virFindFileInPath(kvmbins[i]);
|
|
|
|
if (!kvmbin)
|
|
continue;
|
|
|
|
if (!(kvmbinCaps = virQEMUCapsCacheLookup(cache, kvmbin))) {
|
|
virResetLastError();
|
|
VIR_FREE(kvmbin);
|
|
continue;
|
|
}
|
|
|
|
if (!binary) {
|
|
binary = kvmbin;
|
|
qemubinCaps = kvmbinCaps;
|
|
kvmbin = NULL;
|
|
kvmbinCaps = NULL;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!binary)
|
|
return 0;
|
|
|
|
if (access("/dev/kvm", F_OK) == 0 &&
|
|
(virQEMUCapsGet(qemubinCaps, QEMU_CAPS_KVM) ||
|
|
virQEMUCapsGet(qemubinCaps, QEMU_CAPS_ENABLE_KVM) ||
|
|
kvmbin))
|
|
haskvm = true;
|
|
|
|
if (access("/dev/kqemu", F_OK) == 0 &&
|
|
virQEMUCapsGet(qemubinCaps, QEMU_CAPS_KQEMU))
|
|
haskqemu = true;
|
|
|
|
if (virQEMUCapsGetMachineTypesCaps(qemubinCaps, &nmachines, &machines) < 0)
|
|
goto error;
|
|
|
|
/* We register kvm as the base emulator too, since we can
|
|
* just give -no-kvm to disable acceleration if required */
|
|
if ((guest = virCapabilitiesAddGuest(caps,
|
|
"hvm",
|
|
guestarch,
|
|
binary,
|
|
NULL,
|
|
nmachines,
|
|
machines)) == NULL)
|
|
goto error;
|
|
|
|
machines = NULL;
|
|
nmachines = 0;
|
|
|
|
if (caps->host.cpu &&
|
|
caps->host.cpu->model &&
|
|
virQEMUCapsGetCPUDefinitions(qemubinCaps, NULL) > 0 &&
|
|
!virCapabilitiesAddGuestFeature(guest, "cpuselection", 1, 0))
|
|
goto error;
|
|
|
|
if (virQEMUCapsGet(qemubinCaps, QEMU_CAPS_BOOTINDEX) &&
|
|
!virCapabilitiesAddGuestFeature(guest, "deviceboot", 1, 0))
|
|
goto error;
|
|
|
|
if (virCapabilitiesAddGuestDomain(guest,
|
|
"qemu",
|
|
NULL,
|
|
NULL,
|
|
0,
|
|
NULL) == NULL)
|
|
goto error;
|
|
|
|
if (haskqemu &&
|
|
virCapabilitiesAddGuestDomain(guest,
|
|
"kqemu",
|
|
NULL,
|
|
NULL,
|
|
0,
|
|
NULL) == NULL)
|
|
goto error;
|
|
|
|
if (haskvm) {
|
|
virCapsGuestDomainPtr dom;
|
|
|
|
if (kvmbin &&
|
|
virQEMUCapsGetMachineTypesCaps(kvmbinCaps, &nmachines, &machines) < 0)
|
|
goto error;
|
|
|
|
if ((dom = virCapabilitiesAddGuestDomain(guest,
|
|
"kvm",
|
|
kvmbin ? kvmbin : binary,
|
|
NULL,
|
|
nmachines,
|
|
machines)) == NULL) {
|
|
goto error;
|
|
}
|
|
|
|
machines = NULL;
|
|
nmachines = 0;
|
|
|
|
}
|
|
|
|
if (((guestarch == VIR_ARCH_I686) ||
|
|
(guestarch == VIR_ARCH_X86_64)) &&
|
|
(virCapabilitiesAddGuestFeature(guest, "acpi", 1, 1) == NULL ||
|
|
virCapabilitiesAddGuestFeature(guest, "apic", 1, 0) == NULL))
|
|
goto error;
|
|
|
|
if ((guestarch == VIR_ARCH_I686) &&
|
|
(virCapabilitiesAddGuestFeature(guest, "pae", 1, 0) == NULL ||
|
|
virCapabilitiesAddGuestFeature(guest, "nonpae", 1, 0) == NULL))
|
|
goto error;
|
|
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
VIR_FREE(binary);
|
|
VIR_FREE(kvmbin);
|
|
virObjectUnref(qemubinCaps);
|
|
virObjectUnref(kvmbinCaps);
|
|
|
|
return ret;
|
|
|
|
error:
|
|
virCapabilitiesFreeMachines(machines, nmachines);
|
|
|
|
goto cleanup;
|
|
}
|
|
|
|
|
|
static int
|
|
virQEMUCapsInitCPU(virCapsPtr caps,
|
|
virArch arch)
|
|
{
|
|
virCPUDefPtr cpu = NULL;
|
|
virCPUDataPtr data = NULL;
|
|
virNodeInfo nodeinfo;
|
|
int ret = -1;
|
|
|
|
if (VIR_ALLOC(cpu) < 0)
|
|
goto error;
|
|
|
|
cpu->arch = arch;
|
|
|
|
if (nodeGetInfo(&nodeinfo))
|
|
goto error;
|
|
|
|
cpu->type = VIR_CPU_TYPE_HOST;
|
|
cpu->sockets = nodeinfo.sockets;
|
|
cpu->cores = nodeinfo.cores;
|
|
cpu->threads = nodeinfo.threads;
|
|
caps->host.cpu = cpu;
|
|
|
|
if (!(data = cpuNodeData(arch))
|
|
|| cpuDecode(cpu, data, NULL, 0, NULL) < 0)
|
|
goto cleanup;
|
|
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
cpuDataFree(data);
|
|
|
|
return ret;
|
|
|
|
error:
|
|
virCPUDefFree(cpu);
|
|
goto cleanup;
|
|
}
|
|
|
|
|
|
virCapsPtr virQEMUCapsInit(virQEMUCapsCachePtr cache)
|
|
{
|
|
virCapsPtr caps;
|
|
size_t i;
|
|
virArch hostarch = virArchFromHost();
|
|
|
|
if ((caps = virCapabilitiesNew(hostarch,
|
|
1, 1)) == NULL)
|
|
goto error;
|
|
|
|
/* Some machines have problematic NUMA toplogy causing
|
|
* unexpected failures. We don't want to break the QEMU
|
|
* driver in this scenario, so log errors & carry on
|
|
*/
|
|
if (nodeCapsInitNUMA(caps) < 0) {
|
|
virCapabilitiesFreeNUMAInfo(caps);
|
|
VIR_WARN("Failed to query host NUMA topology, disabling NUMA capabilities");
|
|
}
|
|
|
|
if (virQEMUCapsInitCPU(caps, hostarch) < 0)
|
|
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");
|
|
|
|
virCapabilitiesAddHostMigrateTransport(caps,
|
|
"tcp");
|
|
|
|
/* 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;
|
|
}
|
|
|
|
|
|
static int
|
|
virQEMUCapsComputeCmdFlags(const char *help,
|
|
unsigned int version,
|
|
bool is_kvm,
|
|
unsigned int kvm_version,
|
|
virQEMUCapsPtr qemuCaps,
|
|
bool check_yajl ATTRIBUTE_UNUSED)
|
|
{
|
|
const char *p;
|
|
const char *fsdev, *netdev;
|
|
|
|
if (strstr(help, "-no-kqemu"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_KQEMU);
|
|
if (strstr(help, "-enable-kqemu"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_ENABLE_KQEMU);
|
|
if (strstr(help, "-no-kvm"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_KVM);
|
|
if (strstr(help, "-enable-kvm"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_ENABLE_KVM);
|
|
if (strstr(help, "-no-reboot"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_REBOOT);
|
|
if (strstr(help, "-name")) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NAME);
|
|
if (strstr(help, ",process="))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NAME_PROCESS);
|
|
}
|
|
if (strstr(help, "-uuid"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_UUID);
|
|
if (strstr(help, "-xen-domid"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_XEN_DOMID);
|
|
else if (strstr(help, "-domid"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DOMID);
|
|
if (strstr(help, "-drive")) {
|
|
const char *cache = strstr(help, "cache=");
|
|
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE);
|
|
if (cache && (p = strchr(cache, ']'))) {
|
|
if (memmem(cache, p - cache, "on|off", sizeof("on|off") - 1) == NULL)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_CACHE_V2);
|
|
if (memmem(cache, p - cache, "directsync", sizeof("directsync") - 1))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_CACHE_DIRECTSYNC);
|
|
if (memmem(cache, p - cache, "unsafe", sizeof("unsafe") - 1))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_CACHE_UNSAFE);
|
|
}
|
|
if (strstr(help, "format="))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_FORMAT);
|
|
if (strstr(help, "readonly="))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_READONLY);
|
|
if (strstr(help, "aio=threads|native"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_AIO);
|
|
if (strstr(help, "copy-on-read=on|off"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_COPY_ON_READ);
|
|
if (strstr(help, "bps="))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_IOTUNE);
|
|
}
|
|
if ((p = strstr(help, "-vga")) && !strstr(help, "-std-vga")) {
|
|
const char *nl = strstr(p, "\n");
|
|
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VGA);
|
|
|
|
if (strstr(p, "|qxl"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VGA_QXL);
|
|
if ((p = strstr(p, "|none")) && p < nl)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VGA_NONE);
|
|
}
|
|
if (strstr(help, "-spice"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_SPICE);
|
|
if (strstr(help, "-vnc"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VNC);
|
|
if (strstr(help, "seamless-migration="))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_SEAMLESS_MIGRATION);
|
|
if (strstr(help, "boot=on"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_BOOT);
|
|
if (strstr(help, "serial=s"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_SERIAL);
|
|
if (strstr(help, "-pcidevice"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_PCIDEVICE);
|
|
if (strstr(help, "-mem-path"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MEM_PATH);
|
|
if (strstr(help, "-chardev")) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_CHARDEV);
|
|
if (strstr(help, "-chardev spicevmc"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_CHARDEV_SPICEVMC);
|
|
}
|
|
if (strstr(help, "-balloon"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_BALLOON);
|
|
if (strstr(help, "-device")) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DEVICE);
|
|
/*
|
|
* When -device was introduced, qemu already supported drive's
|
|
* readonly option but didn't advertise that.
|
|
*/
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_READONLY);
|
|
}
|
|
if (strstr(help, "-nodefconfig"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NODEFCONFIG);
|
|
if (strstr(help, "-no-user-config"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_USER_CONFIG);
|
|
/* The trailing ' ' is important to avoid a bogus match */
|
|
if (strstr(help, "-rtc "))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_RTC);
|
|
/* to wit */
|
|
if (strstr(help, "-rtc-td-hack"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_RTC_TD_HACK);
|
|
if (strstr(help, "-no-hpet"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_HPET);
|
|
if (strstr(help, "-no-acpi"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_ACPI);
|
|
if (strstr(help, "-no-kvm-pit-reinjection"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_KVM_PIT);
|
|
if (strstr(help, "-tdf"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_TDF);
|
|
if (strstr(help, "-enable-nesting"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NESTING);
|
|
if (strstr(help, ",menu=on"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_BOOT_MENU);
|
|
if (strstr(help, ",reboot-timeout=rb_time"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_REBOOT_TIMEOUT);
|
|
if ((fsdev = strstr(help, "-fsdev"))) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_FSDEV);
|
|
if (strstr(fsdev, "readonly"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_FSDEV_READONLY);
|
|
if (strstr(fsdev, "writeout"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_FSDEV_WRITEOUT);
|
|
}
|
|
if (strstr(help, "-smbios type"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_SMBIOS_TYPE);
|
|
if (strstr(help, "-sandbox"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_SECCOMP_SANDBOX);
|
|
|
|
if ((netdev = strstr(help, "-netdev"))) {
|
|
/* Disable -netdev on 0.12 since although it exists,
|
|
* the corresponding netdev_add/remove monitor commands
|
|
* do not, and we need them to be able to do hotplug.
|
|
* But see below about RHEL build. */
|
|
if (version >= 13000) {
|
|
if (strstr(netdev, "bridge"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NETDEV_BRIDGE);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NETDEV);
|
|
}
|
|
}
|
|
|
|
if (strstr(help, "-sdl"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_SDL);
|
|
if (strstr(help, "cores=") &&
|
|
strstr(help, "threads=") &&
|
|
strstr(help, "sockets="))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_SMP_TOPOLOGY);
|
|
|
|
if (version >= 9000)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VNC_COLON);
|
|
|
|
if (is_kvm && (version >= 10000 || kvm_version >= 74))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VNET_HDR);
|
|
|
|
if (strstr(help, ",vhost=")) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VHOST_NET);
|
|
}
|
|
|
|
/* Do not use -no-shutdown if qemu doesn't support it or SIGTERM handling
|
|
* is most likely buggy when used with -no-shutdown (which applies for qemu
|
|
* 0.14.* and 0.15.0)
|
|
*/
|
|
if (strstr(help, "-no-shutdown") && (version < 14000 || version > 15000))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_SHUTDOWN);
|
|
|
|
if (strstr(help, "dump-guest-core=on|off"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DUMP_GUEST_CORE);
|
|
|
|
if (strstr(help, "-dtb"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DTB);
|
|
|
|
if (strstr(help, "-machine"))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_OPT);
|
|
|
|
/* USB option is supported v1.3.0 onwards */
|
|
if (qemuCaps->version >= 1003000)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_USB_OPT);
|
|
|
|
/*
|
|
* Handling of -incoming arg with varying features
|
|
* -incoming tcp (kvm >= 79, qemu >= 0.10.0)
|
|
* -incoming exec (kvm >= 80, qemu >= 0.10.0)
|
|
* -incoming unix (qemu >= 0.12.0)
|
|
* -incoming fd (qemu >= 0.12.0)
|
|
* -incoming stdio (all earlier kvm)
|
|
*
|
|
* NB, there was a pre-kvm-79 'tcp' support, but it
|
|
* was broken, because it blocked the monitor console
|
|
* while waiting for data, so pretend it doesn't exist
|
|
*/
|
|
if (version >= 10000) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_TCP);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_EXEC);
|
|
if (version >= 12000) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_UNIX);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_FD);
|
|
}
|
|
} else if (kvm_version >= 79) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_TCP);
|
|
if (kvm_version >= 80)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_EXEC);
|
|
} else if (kvm_version > 0) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MIGRATE_KVM_STDIO);
|
|
}
|
|
|
|
if (version >= 10000)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_0_10);
|
|
|
|
if (version >= 11000)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VIRTIO_BLK_SG_IO);
|
|
|
|
/* While JSON mode was available in 0.12.0, it was too
|
|
* incomplete to contemplate using. The 0.13.0 release
|
|
* is good enough to use, even though it lacks one or
|
|
* two features. This is also true of versions of qemu
|
|
* built for RHEL, labeled 0.12.1, but with extra text
|
|
* in the help output that mentions that features were
|
|
* backported for libvirt. The benefits of JSON mode now
|
|
* outweigh the downside.
|
|
*/
|
|
#if WITH_YAJL
|
|
if (version >= 13000) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MONITOR_JSON);
|
|
} else if (version >= 12000 &&
|
|
strstr(help, "libvirt")) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MONITOR_JSON);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NETDEV);
|
|
}
|
|
#else
|
|
/* Starting with qemu 0.15 and newer, upstream qemu no longer
|
|
* promises to keep the human interface stable, but requests that
|
|
* we use QMP (the JSON interface) for everything. If the user
|
|
* forgot to include YAJL libraries when building their own
|
|
* libvirt but is targetting a newer qemu, we are better off
|
|
* telling them to recompile (the spec file includes the
|
|
* dependency, so distros won't hit this). This check is
|
|
* also in m4/virt-yajl.m4 (see $with_yajl). */
|
|
if (version >= 15000 ||
|
|
(version >= 12000 && strstr(help, "libvirt"))) {
|
|
if (check_yajl) {
|
|
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
|
|
_("this qemu binary requires libvirt to be "
|
|
"compiled with yajl"));
|
|
return -1;
|
|
}
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NETDEV);
|
|
}
|
|
#endif
|
|
|
|
if (version >= 13000)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_PCI_MULTIFUNCTION);
|
|
|
|
/* Although very new versions of qemu advertise the presence of
|
|
* the rombar option in the output of "qemu -device pci-assign,?",
|
|
* this advertisement was added to the code long after the option
|
|
* itself. According to qemu developers, though, rombar is
|
|
* available in all qemu binaries from release 0.12 onward.
|
|
* Setting the capability this way makes it available in more
|
|
* cases where it might be needed, and shouldn't cause any false
|
|
* positives (in the case that it did, qemu would produce an error
|
|
* log and refuse to start, so it would be immediately obvious).
|
|
*/
|
|
if (version >= 12000)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_PCI_ROMBAR);
|
|
|
|
if (version >= 11000)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_CPU_HOST);
|
|
|
|
if (version >= 1001000) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_IPV6_MIGRATION);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VNC_SHARE_POLICY);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* We parse the output of 'qemu -help' to get the QEMU
|
|
* version number. The first bit is easy, just parse
|
|
* 'QEMU PC emulator version x.y.z'
|
|
* or
|
|
* 'QEMU emulator version x.y.z'.
|
|
*
|
|
* With qemu-kvm, however, that is followed by a string
|
|
* in parenthesis as follows:
|
|
* - qemu-kvm-x.y.z in stable releases
|
|
* - kvm-XX for kvm versions up to kvm-85
|
|
* - qemu-kvm-devel-XX for kvm version kvm-86 and later
|
|
*
|
|
* For qemu-kvm versions before 0.10.z, we need to detect
|
|
* the KVM version number for some features. With 0.10.z
|
|
* and later, we just need the QEMU version number and
|
|
* whether it is KVM QEMU or mainline QEMU.
|
|
*/
|
|
#define QEMU_VERSION_STR_1 "QEMU emulator version"
|
|
#define QEMU_VERSION_STR_2 "QEMU PC emulator version"
|
|
#define QEMU_KVM_VER_PREFIX "(qemu-kvm-"
|
|
#define KVM_VER_PREFIX "(kvm-"
|
|
|
|
#define SKIP_BLANKS(p) do { while ((*(p) == ' ') || (*(p) == '\t')) (p)++; } while (0)
|
|
|
|
int virQEMUCapsParseHelpStr(const char *qemu,
|
|
const char *help,
|
|
virQEMUCapsPtr qemuCaps,
|
|
unsigned int *version,
|
|
bool *is_kvm,
|
|
unsigned int *kvm_version,
|
|
bool check_yajl)
|
|
{
|
|
unsigned major, minor, micro;
|
|
const char *p = help;
|
|
char *strflags;
|
|
|
|
*version = *kvm_version = 0;
|
|
*is_kvm = false;
|
|
|
|
if (STRPREFIX(p, QEMU_VERSION_STR_1))
|
|
p += strlen(QEMU_VERSION_STR_1);
|
|
else if (STRPREFIX(p, QEMU_VERSION_STR_2))
|
|
p += strlen(QEMU_VERSION_STR_2);
|
|
else
|
|
goto fail;
|
|
|
|
SKIP_BLANKS(p);
|
|
|
|
major = virParseNumber(&p);
|
|
if (major == -1 || *p != '.')
|
|
goto fail;
|
|
|
|
++p;
|
|
|
|
minor = virParseNumber(&p);
|
|
if (minor == -1)
|
|
goto fail;
|
|
|
|
if (*p != '.') {
|
|
micro = 0;
|
|
} else {
|
|
++p;
|
|
micro = virParseNumber(&p);
|
|
if (micro == -1)
|
|
goto fail;
|
|
}
|
|
|
|
SKIP_BLANKS(p);
|
|
|
|
if (STRPREFIX(p, QEMU_KVM_VER_PREFIX)) {
|
|
*is_kvm = true;
|
|
p += strlen(QEMU_KVM_VER_PREFIX);
|
|
} else if (STRPREFIX(p, KVM_VER_PREFIX)) {
|
|
int ret;
|
|
|
|
*is_kvm = true;
|
|
p += strlen(KVM_VER_PREFIX);
|
|
|
|
ret = virParseNumber(&p);
|
|
if (ret == -1)
|
|
goto fail;
|
|
|
|
*kvm_version = ret;
|
|
}
|
|
|
|
*version = (major * 1000 * 1000) + (minor * 1000) + micro;
|
|
|
|
if (virQEMUCapsComputeCmdFlags(help, *version, *is_kvm, *kvm_version,
|
|
qemuCaps, check_yajl) < 0)
|
|
goto cleanup;
|
|
|
|
strflags = virBitmapString(qemuCaps->flags);
|
|
VIR_DEBUG("Version %u.%u.%u, cooked version %u, flags %s",
|
|
major, minor, micro, *version, NULLSTR(strflags));
|
|
VIR_FREE(strflags);
|
|
|
|
if (*kvm_version)
|
|
VIR_DEBUG("KVM version %d detected", *kvm_version);
|
|
else if (*is_kvm)
|
|
VIR_DEBUG("qemu-kvm version %u.%u.%u detected", major, minor, micro);
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
p = strchr(help, '\n');
|
|
if (!p)
|
|
p = strchr(help, '\0');
|
|
|
|
virReportError(VIR_ERR_INTERNAL_ERROR,
|
|
_("cannot parse %s version number in '%.*s'"),
|
|
qemu, (int) (p - help), help);
|
|
|
|
cleanup:
|
|
return -1;
|
|
}
|
|
|
|
|
|
struct virQEMUCapsStringFlags {
|
|
const char *value;
|
|
int flag;
|
|
};
|
|
|
|
|
|
struct virQEMUCapsStringFlags virQEMUCapsCommands[] = {
|
|
{ "system_wakeup", QEMU_CAPS_WAKEUP },
|
|
{ "transaction", QEMU_CAPS_TRANSACTION },
|
|
{ "block_job_cancel", QEMU_CAPS_BLOCKJOB_SYNC },
|
|
{ "block-job-cancel", QEMU_CAPS_BLOCKJOB_ASYNC },
|
|
{ "dump-guest-memory", QEMU_CAPS_DUMP_GUEST_MEMORY },
|
|
{ "query-spice", QEMU_CAPS_SPICE },
|
|
{ "query-kvm", QEMU_CAPS_KVM },
|
|
{ "block-commit", QEMU_CAPS_BLOCK_COMMIT },
|
|
{ "query-vnc", QEMU_CAPS_VNC },
|
|
{ "drive-mirror", QEMU_CAPS_DRIVE_MIRROR },
|
|
{ "blockdev-snapshot-sync", QEMU_CAPS_DISK_SNAPSHOT },
|
|
{ "add-fd", QEMU_CAPS_ADD_FD },
|
|
{ "nbd-server-start", QEMU_CAPS_NBD_SERVER },
|
|
};
|
|
|
|
struct virQEMUCapsStringFlags virQEMUCapsEvents[] = {
|
|
{ "BALLOON_CHANGE", QEMU_CAPS_BALLOON_EVENT },
|
|
{ "SPICE_MIGRATE_COMPLETED", QEMU_CAPS_SEAMLESS_MIGRATION },
|
|
{ "DEVICE_DELETED", QEMU_CAPS_DEVICE_DEL_EVENT },
|
|
};
|
|
|
|
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_SCLP_S390 },
|
|
{ "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 },
|
|
{ "megasas", QEMU_CAPS_SCSI_MEGASAS },
|
|
{ "spicevmc", QEMU_CAPS_DEVICE_SPICEVMC },
|
|
{ "qxl-vga", QEMU_CAPS_DEVICE_QXL_VGA },
|
|
{ "qxl", QEMU_CAPS_DEVICE_QXL },
|
|
{ "sga", QEMU_CAPS_SGA },
|
|
{ "scsi-block", QEMU_CAPS_SCSI_BLOCK },
|
|
{ "scsi-cd", QEMU_CAPS_SCSI_CD },
|
|
{ "ide-cd", QEMU_CAPS_IDE_CD },
|
|
{ "VGA", QEMU_CAPS_DEVICE_VGA },
|
|
{ "cirrus-vga", QEMU_CAPS_DEVICE_CIRRUS_VGA },
|
|
{ "vmware-svga", QEMU_CAPS_DEVICE_VMWARE_SVGA },
|
|
{ "usb-serial", QEMU_CAPS_DEVICE_USB_SERIAL },
|
|
{ "usb-net", QEMU_CAPS_DEVICE_USB_NET },
|
|
{ "virtio-rng-pci", QEMU_CAPS_DEVICE_VIRTIO_RNG },
|
|
{ "virtio-rng-s390", QEMU_CAPS_DEVICE_VIRTIO_RNG },
|
|
{ "virtio-rng-ccw", QEMU_CAPS_DEVICE_VIRTIO_RNG },
|
|
{ "rng-random", QEMU_CAPS_OBJECT_RNG_RANDOM },
|
|
{ "rng-egd", QEMU_CAPS_OBJECT_RNG_EGD },
|
|
{ "spapr-nvram", QEMU_CAPS_DEVICE_NVRAM },
|
|
{ "pci-bridge", QEMU_CAPS_DEVICE_PCI_BRIDGE },
|
|
{ "vfio-pci", QEMU_CAPS_DEVICE_VFIO_PCI },
|
|
{ "scsi-generic", QEMU_CAPS_DEVICE_SCSI_GENERIC },
|
|
{ "i82801b11-bridge", QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE },
|
|
{ "usb-storage", QEMU_CAPS_DEVICE_USB_STORAGE },
|
|
{ "virtio-mmio", QEMU_CAPS_DEVICE_VIRTIO_MMIO },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVirtioBlk[] = {
|
|
{ "multifunction", QEMU_CAPS_PCI_MULTIFUNCTION },
|
|
{ "bootindex", QEMU_CAPS_BOOTINDEX },
|
|
{ "ioeventfd", QEMU_CAPS_VIRTIO_IOEVENTFD },
|
|
{ "event_idx", QEMU_CAPS_VIRTIO_BLK_EVENT_IDX },
|
|
{ "scsi", QEMU_CAPS_VIRTIO_BLK_SCSI },
|
|
{ "logical_block_size", QEMU_CAPS_BLOCKIO },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVirtioNet[] = {
|
|
{ "tx", QEMU_CAPS_VIRTIO_TX_ALG },
|
|
{ "event_idx", QEMU_CAPS_VIRTIO_NET_EVENT_IDX },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsPciAssign[] = {
|
|
{ "rombar", QEMU_CAPS_PCI_ROMBAR },
|
|
{ "configfd", QEMU_CAPS_PCI_CONFIGFD },
|
|
{ "bootindex", QEMU_CAPS_PCI_BOOTINDEX },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVfioPci[] = {
|
|
{ "bootindex", QEMU_CAPS_VFIO_PCI_BOOTINDEX },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsScsiDisk[] = {
|
|
{ "channel", QEMU_CAPS_SCSI_DISK_CHANNEL },
|
|
{ "wwn", QEMU_CAPS_SCSI_DISK_WWN },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsIDEDrive[] = {
|
|
{ "wwn", QEMU_CAPS_IDE_DRIVE_WWN },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsPixx4PM[] = {
|
|
{ "disable_s3", QEMU_CAPS_DISABLE_S3 },
|
|
{ "disable_s4", QEMU_CAPS_DISABLE_S4 },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsUsbRedir[] = {
|
|
{ "filter", QEMU_CAPS_USB_REDIR_FILTER },
|
|
{ "bootindex", QEMU_CAPS_USB_REDIR_BOOTINDEX },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsUsbHost[] = {
|
|
{ "bootindex", QEMU_CAPS_USB_HOST_BOOTINDEX },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsScsiGeneric[] = {
|
|
{ "bootindex", QEMU_CAPS_DEVICE_SCSI_GENERIC_BOOTINDEX },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsI440FXPciHost[] = {
|
|
{ "pci-hole64-size", QEMU_CAPS_I440FX_PCI_HOLE64_SIZE },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsQ35PciHost[] = {
|
|
{ "pci-hole64-size", QEMU_CAPS_Q35_PCI_HOLE64_SIZE },
|
|
};
|
|
|
|
static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsUsbStorage[] = {
|
|
{ "removable", QEMU_CAPS_USB_STORAGE_REMOVABLE },
|
|
};
|
|
|
|
struct virQEMUCapsObjectTypeProps {
|
|
const char *type;
|
|
struct virQEMUCapsStringFlags *props;
|
|
size_t nprops;
|
|
};
|
|
|
|
static struct virQEMUCapsObjectTypeProps virQEMUCapsObjectProps[] = {
|
|
{ "virtio-blk-pci", virQEMUCapsObjectPropsVirtioBlk,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioBlk) },
|
|
{ "virtio-net-pci", virQEMUCapsObjectPropsVirtioNet,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioNet) },
|
|
{ "virtio-blk-ccw", virQEMUCapsObjectPropsVirtioBlk,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioBlk) },
|
|
{ "virtio-net-ccw", virQEMUCapsObjectPropsVirtioNet,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioNet) },
|
|
{ "virtio-blk-s390", virQEMUCapsObjectPropsVirtioBlk,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioBlk) },
|
|
{ "virtio-net-s390", virQEMUCapsObjectPropsVirtioNet,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioNet) },
|
|
{ "pci-assign", virQEMUCapsObjectPropsPciAssign,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsPciAssign) },
|
|
{ "kvm-pci-assign", virQEMUCapsObjectPropsPciAssign,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsPciAssign) },
|
|
{ "vfio-pci", virQEMUCapsObjectPropsVfioPci,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsVfioPci) },
|
|
{ "scsi-disk", virQEMUCapsObjectPropsScsiDisk,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsScsiDisk) },
|
|
{ "ide-drive", virQEMUCapsObjectPropsIDEDrive,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsIDEDrive) },
|
|
{ "PIIX4_PM", virQEMUCapsObjectPropsPixx4PM,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsPixx4PM) },
|
|
{ "usb-redir", virQEMUCapsObjectPropsUsbRedir,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsUsbRedir) },
|
|
{ "usb-host", virQEMUCapsObjectPropsUsbHost,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsUsbHost) },
|
|
{ "scsi-generic", virQEMUCapsObjectPropsScsiGeneric,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsScsiGeneric) },
|
|
{ "i440FX-pcihost", virQEMUCapsObjectPropsI440FXPciHost,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsI440FXPciHost) },
|
|
{ "q35-pcihost", virQEMUCapsObjectPropsQ35PciHost,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsQ35PciHost) },
|
|
{ "usb-storage", virQEMUCapsObjectPropsUsbStorage,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectPropsUsbStorage) },
|
|
};
|
|
|
|
|
|
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++) {
|
|
for (j = 0; j < nvalues; j++) {
|
|
if (STREQ(values[j], flags[i].value)) {
|
|
virQEMUCapsSet(qemuCaps, flags[i].flag);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
virQEMUCapsFreeStringList(size_t len,
|
|
char **values)
|
|
{
|
|
size_t i;
|
|
for (i = 0; i < len; i++)
|
|
VIR_FREE(values[i]);
|
|
VIR_FREE(values);
|
|
}
|
|
|
|
|
|
#define OBJECT_TYPE_PREFIX "name \""
|
|
|
|
static int
|
|
virQEMUCapsParseDeviceStrObjectTypes(const char *str,
|
|
char ***types)
|
|
{
|
|
const char *tmp = str;
|
|
int ret = -1;
|
|
size_t ntypelist = 0;
|
|
char **typelist = NULL;
|
|
|
|
*types = NULL;
|
|
|
|
while ((tmp = strstr(tmp, OBJECT_TYPE_PREFIX))) {
|
|
char *end;
|
|
tmp += strlen(OBJECT_TYPE_PREFIX);
|
|
end = strstr(tmp, "\"");
|
|
if (!end) {
|
|
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Malformed QEMU device list string, missing quote"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (VIR_EXPAND_N(typelist, ntypelist, 1) < 0)
|
|
goto cleanup;
|
|
if (VIR_STRNDUP(typelist[ntypelist - 1], tmp, end-tmp) < 0)
|
|
goto cleanup;
|
|
}
|
|
|
|
*types = typelist;
|
|
ret = ntypelist;
|
|
|
|
cleanup:
|
|
if (ret < 0)
|
|
virQEMUCapsFreeStringList(ntypelist, typelist);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int
|
|
virQEMUCapsParseDeviceStrObjectProps(const char *str,
|
|
const char *type,
|
|
char ***props)
|
|
{
|
|
const char *tmp = str;
|
|
int ret = -1;
|
|
size_t nproplist = 0;
|
|
char **proplist = NULL;
|
|
|
|
VIR_DEBUG("Extract type %s", type);
|
|
*props = NULL;
|
|
|
|
while ((tmp = strchr(tmp, '\n'))) {
|
|
char *end;
|
|
tmp += 1;
|
|
|
|
if (*tmp == '\0')
|
|
break;
|
|
|
|
if (STRPREFIX(tmp, OBJECT_TYPE_PREFIX))
|
|
continue;
|
|
|
|
if (!STRPREFIX(tmp, type))
|
|
continue;
|
|
|
|
tmp += strlen(type);
|
|
if (*tmp != '.')
|
|
continue;
|
|
tmp++;
|
|
|
|
end = strstr(tmp, "=");
|
|
if (!end) {
|
|
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Malformed QEMU device list string, missing '='"));
|
|
goto cleanup;
|
|
}
|
|
if (VIR_EXPAND_N(proplist, nproplist, 1) < 0)
|
|
goto cleanup;
|
|
if (VIR_STRNDUP(proplist[nproplist - 1], tmp, end-tmp) < 0)
|
|
goto cleanup;
|
|
}
|
|
|
|
*props = proplist;
|
|
ret = nproplist;
|
|
|
|
cleanup:
|
|
if (ret < 0)
|
|
virQEMUCapsFreeStringList(nproplist, proplist);
|
|
return ret;
|
|
}
|
|
|
|
|
|
int
|
|
virQEMUCapsParseDeviceStr(virQEMUCapsPtr qemuCaps, const char *str)
|
|
{
|
|
int nvalues;
|
|
char **values;
|
|
size_t i;
|
|
|
|
if ((nvalues = virQEMUCapsParseDeviceStrObjectTypes(str, &values)) < 0)
|
|
return -1;
|
|
virQEMUCapsProcessStringFlags(qemuCaps,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectTypes),
|
|
virQEMUCapsObjectTypes,
|
|
nvalues, values);
|
|
virQEMUCapsFreeStringList(nvalues, values);
|
|
|
|
for (i = 0; i < ARRAY_CARDINALITY(virQEMUCapsObjectProps); i++) {
|
|
const char *type = virQEMUCapsObjectProps[i].type;
|
|
if ((nvalues = virQEMUCapsParseDeviceStrObjectProps(str,
|
|
type,
|
|
&values)) < 0)
|
|
return -1;
|
|
virQEMUCapsProcessStringFlags(qemuCaps,
|
|
virQEMUCapsObjectProps[i].nprops,
|
|
virQEMUCapsObjectProps[i].props,
|
|
nvalues, values);
|
|
virQEMUCapsFreeStringList(nvalues, values);
|
|
}
|
|
|
|
/* Prefer -chardev spicevmc (detected earlier) over -device spicevmc */
|
|
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_SPICEVMC))
|
|
virQEMUCapsClear(qemuCaps, QEMU_CAPS_DEVICE_SPICEVMC);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
virQEMUCapsExtractDeviceStr(const char *qemu,
|
|
virQEMUCapsPtr qemuCaps,
|
|
uid_t runUid, gid_t runGid)
|
|
{
|
|
char *output = NULL;
|
|
virCommandPtr cmd;
|
|
int ret = -1;
|
|
|
|
/* Cram together all device-related queries into one invocation;
|
|
* the output format makes it possible to distinguish what we
|
|
* need. With qemu 0.13.0 and later, unrecognized '-device
|
|
* bogus,?' cause an error in isolation, but are silently ignored
|
|
* in combination with '-device ?'. Upstream qemu 0.12.x doesn't
|
|
* understand '-device name,?', and always exits with status 1 for
|
|
* the simpler '-device ?', so this function is really only useful
|
|
* if -help includes "device driver,?". */
|
|
cmd = virQEMUCapsProbeCommand(qemu, qemuCaps, runUid, runGid);
|
|
virCommandAddArgList(cmd,
|
|
"-device", "?",
|
|
"-device", "pci-assign,?",
|
|
"-device", "virtio-blk-pci,?",
|
|
"-device", "virtio-net-pci,?",
|
|
"-device", "scsi-disk,?",
|
|
"-device", "PIIX4_PM,?",
|
|
"-device", "usb-redir,?",
|
|
"-device", "ide-drive,?",
|
|
"-device", "usb-host,?",
|
|
"-device", "scsi-generic,?",
|
|
"-device", "usb-storage,?",
|
|
NULL);
|
|
/* qemu -help goes to stdout, but qemu -device ? goes to stderr. */
|
|
virCommandSetErrorBuffer(cmd, &output);
|
|
|
|
if (virCommandRun(cmd, NULL) < 0)
|
|
goto cleanup;
|
|
|
|
ret = virQEMUCapsParseDeviceStr(qemuCaps, output);
|
|
|
|
cleanup:
|
|
VIR_FREE(output);
|
|
virCommandFree(cmd);
|
|
return ret;
|
|
}
|
|
|
|
|
|
int virQEMUCapsGetDefaultVersion(virCapsPtr caps,
|
|
virQEMUCapsCachePtr capsCache,
|
|
unsigned int *version)
|
|
{
|
|
const char *binary;
|
|
virQEMUCapsPtr qemucaps;
|
|
virArch hostarch;
|
|
|
|
if (*version > 0)
|
|
return 0;
|
|
|
|
hostarch = virArchFromHost();
|
|
if ((binary = virCapabilitiesDefaultGuestEmulator(caps,
|
|
"hvm",
|
|
hostarch,
|
|
"qemu")) == NULL) {
|
|
virReportError(VIR_ERR_INTERNAL_ERROR,
|
|
_("Cannot find suitable emulator for %s"),
|
|
virArchToString(hostarch));
|
|
return -1;
|
|
}
|
|
|
|
if (!(qemucaps = virQEMUCapsCacheLookup(capsCache, binary)))
|
|
return -1;
|
|
|
|
*version = virQEMUCapsGetVersion(qemucaps);
|
|
virObjectUnref(qemucaps);
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
|
|
virQEMUCapsPtr
|
|
virQEMUCapsNew(void)
|
|
{
|
|
virQEMUCapsPtr qemuCaps;
|
|
|
|
if (virQEMUCapsInitialize() < 0)
|
|
return NULL;
|
|
|
|
if (!(qemuCaps = virObjectNew(virQEMUCapsClass)))
|
|
return NULL;
|
|
|
|
if (!(qemuCaps->flags = virBitmapNew(QEMU_CAPS_LAST)))
|
|
goto error;
|
|
|
|
return qemuCaps;
|
|
|
|
error:
|
|
virObjectUnref(qemuCaps);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
virQEMUCapsPtr virQEMUCapsNewCopy(virQEMUCapsPtr qemuCaps)
|
|
{
|
|
virQEMUCapsPtr ret = virQEMUCapsNew();
|
|
size_t i;
|
|
|
|
if (!ret)
|
|
return NULL;
|
|
|
|
virBitmapCopy(ret->flags, qemuCaps->flags);
|
|
|
|
ret->usedQMP = qemuCaps->usedQMP;
|
|
ret->version = qemuCaps->version;
|
|
ret->kvmVersion = qemuCaps->kvmVersion;
|
|
ret->arch = qemuCaps->arch;
|
|
|
|
if (VIR_ALLOC_N(ret->cpuDefinitions, qemuCaps->ncpuDefinitions) < 0)
|
|
goto error;
|
|
ret->ncpuDefinitions = qemuCaps->ncpuDefinitions;
|
|
for (i = 0; i < qemuCaps->ncpuDefinitions; i++) {
|
|
if (VIR_STRDUP(ret->cpuDefinitions[i], qemuCaps->cpuDefinitions[i]) < 0)
|
|
goto error;
|
|
}
|
|
|
|
if (VIR_ALLOC_N(ret->machineTypes, qemuCaps->nmachineTypes) < 0)
|
|
goto error;
|
|
if (VIR_ALLOC_N(ret->machineAliases, qemuCaps->nmachineTypes) < 0)
|
|
goto error;
|
|
if (VIR_ALLOC_N(ret->machineMaxCpus, qemuCaps->nmachineTypes) < 0)
|
|
goto error;
|
|
ret->nmachineTypes = qemuCaps->nmachineTypes;
|
|
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
|
|
if (VIR_STRDUP(ret->machineTypes[i], qemuCaps->machineTypes[i]) < 0 ||
|
|
VIR_STRDUP(ret->machineAliases[i], qemuCaps->machineAliases[i]) < 0)
|
|
goto error;
|
|
ret->machineMaxCpus[i] = qemuCaps->machineMaxCpus[i];
|
|
}
|
|
|
|
return ret;
|
|
|
|
error:
|
|
virObjectUnref(ret);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
void virQEMUCapsDispose(void *obj)
|
|
{
|
|
virQEMUCapsPtr qemuCaps = obj;
|
|
size_t i;
|
|
|
|
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
|
|
VIR_FREE(qemuCaps->machineTypes[i]);
|
|
VIR_FREE(qemuCaps->machineAliases[i]);
|
|
}
|
|
VIR_FREE(qemuCaps->machineTypes);
|
|
VIR_FREE(qemuCaps->machineAliases);
|
|
VIR_FREE(qemuCaps->machineMaxCpus);
|
|
|
|
for (i = 0; i < qemuCaps->ncpuDefinitions; i++) {
|
|
VIR_FREE(qemuCaps->cpuDefinitions[i]);
|
|
}
|
|
VIR_FREE(qemuCaps->cpuDefinitions);
|
|
|
|
virBitmapFree(qemuCaps->flags);
|
|
|
|
VIR_FREE(qemuCaps->binary);
|
|
}
|
|
|
|
void
|
|
virQEMUCapsSet(virQEMUCapsPtr qemuCaps,
|
|
enum virQEMUCapsFlags flag)
|
|
{
|
|
ignore_value(virBitmapSetBit(qemuCaps->flags, flag));
|
|
}
|
|
|
|
|
|
void
|
|
virQEMUCapsSetList(virQEMUCapsPtr qemuCaps, ...)
|
|
{
|
|
va_list list;
|
|
int flag;
|
|
|
|
va_start(list, qemuCaps);
|
|
while ((flag = va_arg(list, int)) < QEMU_CAPS_LAST)
|
|
ignore_value(virBitmapSetBit(qemuCaps->flags, flag));
|
|
va_end(list);
|
|
}
|
|
|
|
|
|
void
|
|
virQEMUCapsClear(virQEMUCapsPtr qemuCaps,
|
|
enum virQEMUCapsFlags flag)
|
|
{
|
|
ignore_value(virBitmapClearBit(qemuCaps->flags, flag));
|
|
}
|
|
|
|
|
|
char *virQEMUCapsFlagsString(virQEMUCapsPtr qemuCaps)
|
|
{
|
|
return virBitmapString(qemuCaps->flags);
|
|
}
|
|
|
|
|
|
bool
|
|
virQEMUCapsGet(virQEMUCapsPtr qemuCaps,
|
|
enum virQEMUCapsFlags flag)
|
|
{
|
|
bool b;
|
|
|
|
if (!qemuCaps || virBitmapGetBit(qemuCaps->flags, flag, &b) < 0)
|
|
return false;
|
|
else
|
|
return b;
|
|
}
|
|
|
|
|
|
const char *virQEMUCapsGetBinary(virQEMUCapsPtr qemuCaps)
|
|
{
|
|
return qemuCaps->binary;
|
|
}
|
|
|
|
virArch virQEMUCapsGetArch(virQEMUCapsPtr qemuCaps)
|
|
{
|
|
return qemuCaps->arch;
|
|
}
|
|
|
|
|
|
unsigned int virQEMUCapsGetVersion(virQEMUCapsPtr qemuCaps)
|
|
{
|
|
return qemuCaps->version;
|
|
}
|
|
|
|
|
|
unsigned int virQEMUCapsGetKVMVersion(virQEMUCapsPtr qemuCaps)
|
|
{
|
|
return qemuCaps->kvmVersion;
|
|
}
|
|
|
|
|
|
int virQEMUCapsAddCPUDefinition(virQEMUCapsPtr qemuCaps,
|
|
const char *name)
|
|
{
|
|
char *tmp;
|
|
|
|
if (VIR_STRDUP(tmp, name) < 0)
|
|
return -1;
|
|
if (VIR_EXPAND_N(qemuCaps->cpuDefinitions, qemuCaps->ncpuDefinitions, 1) < 0) {
|
|
VIR_FREE(tmp);
|
|
return -1;
|
|
}
|
|
qemuCaps->cpuDefinitions[qemuCaps->ncpuDefinitions-1] = tmp;
|
|
return 0;
|
|
}
|
|
|
|
|
|
size_t virQEMUCapsGetCPUDefinitions(virQEMUCapsPtr qemuCaps,
|
|
char ***names)
|
|
{
|
|
if (names)
|
|
*names = qemuCaps->cpuDefinitions;
|
|
return qemuCaps->ncpuDefinitions;
|
|
}
|
|
|
|
|
|
size_t virQEMUCapsGetMachineTypes(virQEMUCapsPtr qemuCaps,
|
|
char ***names)
|
|
{
|
|
if (names)
|
|
*names = qemuCaps->machineTypes;
|
|
return qemuCaps->nmachineTypes;
|
|
}
|
|
|
|
int virQEMUCapsGetMachineTypesCaps(virQEMUCapsPtr qemuCaps,
|
|
size_t *nmachines,
|
|
virCapsGuestMachinePtr **machines)
|
|
{
|
|
size_t i;
|
|
|
|
*nmachines = 0;
|
|
*machines = NULL;
|
|
if (VIR_ALLOC_N(*machines, qemuCaps->nmachineTypes) < 0)
|
|
goto error;
|
|
*nmachines = qemuCaps->nmachineTypes;
|
|
|
|
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
|
|
virCapsGuestMachinePtr mach;
|
|
if (VIR_ALLOC(mach) < 0)
|
|
goto error;
|
|
if (qemuCaps->machineAliases[i]) {
|
|
if (VIR_STRDUP(mach->name, qemuCaps->machineAliases[i]) < 0 ||
|
|
VIR_STRDUP(mach->canonical, qemuCaps->machineTypes[i]) < 0)
|
|
goto error;
|
|
} else {
|
|
if (VIR_STRDUP(mach->name, qemuCaps->machineTypes[i]) < 0)
|
|
goto error;
|
|
}
|
|
mach->maxCpus = qemuCaps->machineMaxCpus[i];
|
|
(*machines)[i] = mach;
|
|
}
|
|
|
|
return 0;
|
|
|
|
error:
|
|
virCapabilitiesFreeMachines(*machines, *nmachines);
|
|
*nmachines = 0;
|
|
*machines = NULL;
|
|
return -1;
|
|
}
|
|
|
|
|
|
|
|
|
|
const char *virQEMUCapsGetCanonicalMachine(virQEMUCapsPtr qemuCaps,
|
|
const char *name)
|
|
{
|
|
size_t i;
|
|
|
|
if (!name)
|
|
return NULL;
|
|
|
|
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
|
|
if (!qemuCaps->machineAliases[i])
|
|
continue;
|
|
if (STREQ(qemuCaps->machineAliases[i], name))
|
|
return qemuCaps->machineTypes[i];
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
|
|
int virQEMUCapsGetMachineMaxCpus(virQEMUCapsPtr qemuCaps,
|
|
const char *name)
|
|
{
|
|
size_t i;
|
|
|
|
if (!name)
|
|
return 0;
|
|
|
|
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
|
|
if (!qemuCaps->machineMaxCpus[i])
|
|
continue;
|
|
if (STREQ(qemuCaps->machineTypes[i], name))
|
|
return qemuCaps->machineMaxCpus[i];
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
virQEMUCapsProbeQMPCommands(virQEMUCapsPtr qemuCaps,
|
|
qemuMonitorPtr mon)
|
|
{
|
|
char **commands = NULL;
|
|
int ncommands;
|
|
|
|
if ((ncommands = qemuMonitorGetCommands(mon, &commands)) < 0)
|
|
return -1;
|
|
|
|
virQEMUCapsProcessStringFlags(qemuCaps,
|
|
ARRAY_CARDINALITY(virQEMUCapsCommands),
|
|
virQEMUCapsCommands,
|
|
ncommands, commands);
|
|
virQEMUCapsFreeStringList(ncommands, commands);
|
|
|
|
/* QMP add-fd was introduced in 1.2, but did not support
|
|
* management control of set numbering, and did not have a
|
|
* counterpart -add-fd command line option. We require the
|
|
* add-fd features from 1.3 or later. */
|
|
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_ADD_FD)) {
|
|
int fd = open("/dev/null", O_RDONLY);
|
|
if (fd < 0) {
|
|
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("unable to probe for add-fd"));
|
|
return -1;
|
|
}
|
|
if (qemuMonitorAddFd(mon, 0, fd, "/dev/null") < 0)
|
|
virQEMUCapsClear(qemuCaps, QEMU_CAPS_ADD_FD);
|
|
VIR_FORCE_CLOSE(fd);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
virQEMUCapsProbeQMPEvents(virQEMUCapsPtr qemuCaps,
|
|
qemuMonitorPtr mon)
|
|
{
|
|
char **events = NULL;
|
|
int nevents;
|
|
|
|
if ((nevents = qemuMonitorGetEvents(mon, &events)) < 0)
|
|
return -1;
|
|
|
|
virQEMUCapsProcessStringFlags(qemuCaps,
|
|
ARRAY_CARDINALITY(virQEMUCapsEvents),
|
|
virQEMUCapsEvents,
|
|
nevents, events);
|
|
virQEMUCapsFreeStringList(nevents, events);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
virQEMUCapsProbeQMPObjects(virQEMUCapsPtr qemuCaps,
|
|
qemuMonitorPtr mon)
|
|
{
|
|
int nvalues;
|
|
char **values;
|
|
size_t i;
|
|
|
|
if ((nvalues = qemuMonitorGetObjectTypes(mon, &values)) < 0)
|
|
return -1;
|
|
virQEMUCapsProcessStringFlags(qemuCaps,
|
|
ARRAY_CARDINALITY(virQEMUCapsObjectTypes),
|
|
virQEMUCapsObjectTypes,
|
|
nvalues, values);
|
|
virQEMUCapsFreeStringList(nvalues, values);
|
|
|
|
for (i = 0; i < ARRAY_CARDINALITY(virQEMUCapsObjectProps); i++) {
|
|
const char *type = virQEMUCapsObjectProps[i].type;
|
|
if ((nvalues = qemuMonitorGetObjectProps(mon,
|
|
type,
|
|
&values)) < 0)
|
|
return -1;
|
|
virQEMUCapsProcessStringFlags(qemuCaps,
|
|
virQEMUCapsObjectProps[i].nprops,
|
|
virQEMUCapsObjectProps[i].props,
|
|
nvalues, values);
|
|
virQEMUCapsFreeStringList(nvalues, values);
|
|
}
|
|
|
|
/* Prefer -chardev spicevmc (detected earlier) over -device spicevmc */
|
|
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_SPICEVMC))
|
|
virQEMUCapsClear(qemuCaps, QEMU_CAPS_DEVICE_SPICEVMC);
|
|
/* If qemu supports newer -device qxl it supports -vga qxl as well */
|
|
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_QXL))
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VGA_QXL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
virQEMUCapsProbeQMPMachineTypes(virQEMUCapsPtr qemuCaps,
|
|
qemuMonitorPtr mon)
|
|
{
|
|
qemuMonitorMachineInfoPtr *machines = NULL;
|
|
int nmachines = 0;
|
|
int ret = -1;
|
|
size_t i;
|
|
size_t defIdx = 0;
|
|
|
|
if ((nmachines = qemuMonitorGetMachines(mon, &machines)) < 0)
|
|
goto cleanup;
|
|
|
|
if (VIR_ALLOC_N(qemuCaps->machineTypes, nmachines) < 0)
|
|
goto cleanup;
|
|
if (VIR_ALLOC_N(qemuCaps->machineAliases, nmachines) < 0)
|
|
goto cleanup;
|
|
if (VIR_ALLOC_N(qemuCaps->machineMaxCpus, nmachines) < 0)
|
|
goto cleanup;
|
|
|
|
for (i = 0; i < nmachines; i++) {
|
|
if (VIR_STRDUP(qemuCaps->machineAliases[i], machines[i]->alias) < 0 ||
|
|
VIR_STRDUP(qemuCaps->machineTypes[i], machines[i]->name) < 0)
|
|
goto cleanup;
|
|
if (machines[i]->isDefault)
|
|
defIdx = i;
|
|
qemuCaps->machineMaxCpus[i] = machines[i]->maxCpus;
|
|
}
|
|
qemuCaps->nmachineTypes = nmachines;
|
|
|
|
if (defIdx)
|
|
virQEMUCapsSetDefaultMachine(qemuCaps, defIdx);
|
|
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
for (i = 0; i < nmachines; i++)
|
|
qemuMonitorMachineInfoFree(machines[i]);
|
|
VIR_FREE(machines);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int
|
|
virQEMUCapsProbeQMPCPUDefinitions(virQEMUCapsPtr qemuCaps,
|
|
qemuMonitorPtr mon)
|
|
{
|
|
int ncpuDefinitions;
|
|
char **cpuDefinitions;
|
|
|
|
if ((ncpuDefinitions = qemuMonitorGetCPUDefinitions(mon, &cpuDefinitions)) < 0)
|
|
return -1;
|
|
|
|
qemuCaps->ncpuDefinitions = ncpuDefinitions;
|
|
qemuCaps->cpuDefinitions = cpuDefinitions;
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct tpmTypeToCaps {
|
|
int type;
|
|
enum virQEMUCapsFlags caps;
|
|
};
|
|
|
|
static const struct tpmTypeToCaps virQEMUCapsTPMTypesToCaps[] = {
|
|
{
|
|
.type = VIR_DOMAIN_TPM_TYPE_PASSTHROUGH,
|
|
.caps = QEMU_CAPS_DEVICE_TPM_PASSTHROUGH,
|
|
},
|
|
};
|
|
|
|
const struct tpmTypeToCaps virQEMUCapsTPMModelsToCaps[] = {
|
|
{
|
|
.type = VIR_DOMAIN_TPM_MODEL_TIS,
|
|
.caps = QEMU_CAPS_DEVICE_TPM_TIS,
|
|
},
|
|
};
|
|
|
|
static int
|
|
virQEMUCapsProbeQMPTPM(virQEMUCapsPtr qemuCaps,
|
|
qemuMonitorPtr mon)
|
|
{
|
|
int nentries;
|
|
size_t i;
|
|
char **entries = NULL;
|
|
|
|
if ((nentries = qemuMonitorGetTPMModels(mon, &entries)) < 0)
|
|
return -1;
|
|
|
|
if (nentries > 0) {
|
|
for (i = 0; i < ARRAY_CARDINALITY(virQEMUCapsTPMModelsToCaps); i++) {
|
|
const char *needle = virDomainTPMModelTypeToString(
|
|
virQEMUCapsTPMModelsToCaps[i].type);
|
|
if (virStringArrayHasString(entries, needle))
|
|
virQEMUCapsSet(qemuCaps,
|
|
virQEMUCapsTPMModelsToCaps[i].caps);
|
|
}
|
|
}
|
|
virStringFreeList(entries);
|
|
|
|
if ((nentries = qemuMonitorGetTPMTypes(mon, &entries)) < 0)
|
|
return -1;
|
|
|
|
if (nentries > 0) {
|
|
for (i = 0; i < ARRAY_CARDINALITY(virQEMUCapsTPMTypesToCaps); i++) {
|
|
const char *needle = virDomainTPMBackendTypeToString(
|
|
virQEMUCapsTPMTypesToCaps[i].type);
|
|
if (virStringArrayHasString(entries, needle))
|
|
virQEMUCapsSet(qemuCaps, virQEMUCapsTPMTypesToCaps[i].caps);
|
|
}
|
|
}
|
|
virStringFreeList(entries);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
virQEMUCapsProbeQMPKVMState(virQEMUCapsPtr qemuCaps,
|
|
qemuMonitorPtr mon)
|
|
{
|
|
bool enabled = false;
|
|
bool present = false;
|
|
|
|
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM))
|
|
return 0;
|
|
|
|
if (qemuMonitorGetKVMState(mon, &enabled, &present) < 0)
|
|
return -1;
|
|
|
|
/* The QEMU_CAPS_KVM flag was initially set according to the QEMU
|
|
* reporting the recognition of 'query-kvm' QMP command. That merely
|
|
* indicates existance of the command though, not whether KVM support
|
|
* is actually available, nor whether it is enabled by default.
|
|
*
|
|
* If it is not present we need to clear the flag, and if it is
|
|
* not enabled by default we need to change the flag.
|
|
*/
|
|
if (!present) {
|
|
virQEMUCapsClear(qemuCaps, QEMU_CAPS_KVM);
|
|
} else if (!enabled) {
|
|
virQEMUCapsClear(qemuCaps, QEMU_CAPS_KVM);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_ENABLE_KVM);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct virQEMUCapsCommandLineProps {
|
|
const char *option;
|
|
const char *param;
|
|
int flag;
|
|
};
|
|
|
|
static struct virQEMUCapsCommandLineProps virQEMUCapsCommandLine[] = {
|
|
{ "machine", "mem-merge", QEMU_CAPS_MEM_MERGE },
|
|
{ "drive", "discard", QEMU_CAPS_DRIVE_DISCARD },
|
|
{ "realtime", "mlock", QEMU_CAPS_MLOCK },
|
|
};
|
|
|
|
static int
|
|
virQEMUCapsProbeQMPCommandLine(virQEMUCapsPtr qemuCaps,
|
|
qemuMonitorPtr mon)
|
|
{
|
|
int nvalues;
|
|
char **values;
|
|
size_t i, j;
|
|
|
|
for (i = 0; i < ARRAY_CARDINALITY(virQEMUCapsCommandLine); i++) {
|
|
if ((nvalues = qemuMonitorGetCommandLineOptionParameters(mon,
|
|
virQEMUCapsCommandLine[i].option,
|
|
&values)) < 0)
|
|
return -1;
|
|
for (j = 0; j < nvalues; j++) {
|
|
if (STREQ(virQEMUCapsCommandLine[i].param, values[j])) {
|
|
virQEMUCapsSet(qemuCaps, virQEMUCapsCommandLine[i].flag);
|
|
break;
|
|
}
|
|
}
|
|
virStringFreeList(values);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int virQEMUCapsProbeQMP(virQEMUCapsPtr qemuCaps,
|
|
qemuMonitorPtr mon)
|
|
{
|
|
VIR_DEBUG("qemuCaps=%p mon=%p", qemuCaps, mon);
|
|
|
|
if (qemuCaps->usedQMP)
|
|
return 0;
|
|
|
|
if (virQEMUCapsProbeQMPCommands(qemuCaps, mon) < 0)
|
|
return -1;
|
|
|
|
if (virQEMUCapsProbeQMPEvents(qemuCaps, mon) < 0)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
#define QEMU_SYSTEM_PREFIX "qemu-system-"
|
|
|
|
static int
|
|
virQEMUCapsInitHelp(virQEMUCapsPtr qemuCaps, uid_t runUid, gid_t runGid)
|
|
{
|
|
virCommandPtr cmd = NULL;
|
|
bool is_kvm;
|
|
char *help = NULL;
|
|
int ret = -1;
|
|
const char *tmp;
|
|
|
|
VIR_DEBUG("qemuCaps=%p", qemuCaps);
|
|
|
|
tmp = strstr(qemuCaps->binary, QEMU_SYSTEM_PREFIX);
|
|
if (tmp) {
|
|
tmp += strlen(QEMU_SYSTEM_PREFIX);
|
|
|
|
qemuCaps->arch = virQEMUCapsArchFromString(tmp);
|
|
} else {
|
|
qemuCaps->arch = virArchFromHost();
|
|
}
|
|
|
|
cmd = virQEMUCapsProbeCommand(qemuCaps->binary, NULL, runUid, runGid);
|
|
virCommandAddArgList(cmd, "-help", NULL);
|
|
virCommandSetOutputBuffer(cmd, &help);
|
|
|
|
if (virCommandRun(cmd, NULL) < 0)
|
|
goto cleanup;
|
|
|
|
if (virQEMUCapsParseHelpStr(qemuCaps->binary,
|
|
help, qemuCaps,
|
|
&qemuCaps->version,
|
|
&is_kvm,
|
|
&qemuCaps->kvmVersion,
|
|
false) < 0)
|
|
goto cleanup;
|
|
|
|
/* Currently only x86_64 and i686 support PCI-multibus. */
|
|
if (qemuCaps->arch == VIR_ARCH_X86_64 ||
|
|
qemuCaps->arch == VIR_ARCH_I686) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_PCI_MULTIBUS);
|
|
} else {
|
|
/* -no-acpi is not supported on other archs
|
|
* even if qemu reports it in -help */
|
|
virQEMUCapsClear(qemuCaps, QEMU_CAPS_NO_ACPI);
|
|
}
|
|
|
|
/* virQEMUCapsExtractDeviceStr will only set additional caps if qemu
|
|
* understands the 0.13.0+ notion of "-device driver,". */
|
|
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE) &&
|
|
strstr(help, "-device driver,?") &&
|
|
virQEMUCapsExtractDeviceStr(qemuCaps->binary,
|
|
qemuCaps, runUid, runGid) < 0) {
|
|
goto cleanup;
|
|
}
|
|
|
|
if (virQEMUCapsProbeCPUModels(qemuCaps, runUid, runGid) < 0)
|
|
goto cleanup;
|
|
|
|
if (virQEMUCapsProbeMachineTypes(qemuCaps, runUid, runGid) < 0)
|
|
goto cleanup;
|
|
|
|
ret = 0;
|
|
cleanup:
|
|
virCommandFree(cmd);
|
|
VIR_FREE(help);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static void virQEMUCapsMonitorNotify(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
|
|
virDomainObjPtr vm ATTRIBUTE_UNUSED,
|
|
void *opaque ATTRIBUTE_UNUSED)
|
|
{
|
|
}
|
|
|
|
static qemuMonitorCallbacks callbacks = {
|
|
.eofNotify = virQEMUCapsMonitorNotify,
|
|
.errorNotify = virQEMUCapsMonitorNotify,
|
|
};
|
|
|
|
|
|
/* Capabilities that we assume are always enabled
|
|
* for QEMU >= 1.2.0
|
|
*/
|
|
static void
|
|
virQEMUCapsInitQMPBasic(virQEMUCapsPtr qemuCaps)
|
|
{
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VNC_COLON);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_REBOOT);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NAME);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_UUID);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VNET_HDR);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_TCP);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_EXEC);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_CACHE_V2);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_FORMAT);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VGA);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_0_10);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MEM_PATH);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_SERIAL);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_UNIX);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_CHARDEV);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MONITOR_JSON);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_BALLOON);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DEVICE);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_SDL);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_SMP_TOPOLOGY);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NETDEV);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_RTC);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VHOST_NET);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_HPET);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NODEFCONFIG);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_BOOT_MENU);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_FSDEV);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NAME_PROCESS);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_READONLY);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_SMBIOS_TYPE);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VGA_NONE);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MIGRATE_QEMU_FD);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_AIO);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_CHARDEV_SPICEVMC);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DEVICE_QXL_VGA);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_CACHE_DIRECTSYNC);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_SHUTDOWN);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_CACHE_UNSAFE);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_FSDEV_READONLY);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VIRTIO_BLK_SG_IO);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_COPY_ON_READ);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_CPU_HOST);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_FSDEV_WRITEOUT);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_IOTUNE);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_WAKEUP);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_USER_CONFIG);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NETDEV_BRIDGE);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_SECCOMP_SANDBOX);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DTB);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_IPV6_MIGRATION);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_OPT);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DUMP_GUEST_CORE);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VNC_SHARE_POLICY);
|
|
}
|
|
|
|
/* Capabilities that are architecture depending
|
|
* initialized for QEMU.
|
|
*/
|
|
static int
|
|
virQEMUCapsInitArchQMPBasic(virQEMUCapsPtr qemuCaps,
|
|
qemuMonitorPtr mon)
|
|
{
|
|
char *archstr = NULL;
|
|
int ret = -1;
|
|
|
|
if (!(archstr = qemuMonitorGetTargetArch(mon)))
|
|
return -1;
|
|
|
|
if ((qemuCaps->arch = virQEMUCapsArchFromString(archstr)) == VIR_ARCH_NONE) {
|
|
virReportError(VIR_ERR_INTERNAL_ERROR,
|
|
_("Unknown QEMU arch %s"), archstr);
|
|
goto cleanup;
|
|
}
|
|
|
|
/*
|
|
* Currently only x86_64 and i686 support PCI-multibus,
|
|
* -no-acpi and -no-kvm-pit-reinjection.
|
|
*/
|
|
if (qemuCaps->arch == VIR_ARCH_X86_64 ||
|
|
qemuCaps->arch == VIR_ARCH_I686) {
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_PCI_MULTIBUS);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_ACPI);
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_NO_KVM_PIT);
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
VIR_FREE(archstr);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
|
|
const char *libDir,
|
|
uid_t runUid,
|
|
gid_t runGid)
|
|
{
|
|
int ret = -1;
|
|
virCommandPtr cmd = NULL;
|
|
qemuMonitorPtr mon = NULL;
|
|
int major, minor, micro;
|
|
char *package = NULL;
|
|
int status = 0;
|
|
virDomainChrSourceDef config;
|
|
char *monarg = NULL;
|
|
char *monpath = NULL;
|
|
char *pidfile = NULL;
|
|
pid_t pid = 0;
|
|
virDomainObj vm;
|
|
|
|
/* the ".sock" sufix is important to avoid a possible clash with a qemu
|
|
* domain called "capabilities"
|
|
*/
|
|
if (virAsprintf(&monpath, "%s/%s", libDir, "capabilities.monitor.sock") < 0)
|
|
goto cleanup;
|
|
if (virAsprintf(&monarg, "unix:%s,server,nowait", monpath) < 0)
|
|
goto cleanup;
|
|
|
|
/* ".pidfile" suffix is used rather than ".pid" to avoid a possible clash
|
|
* with a qemu domain called "capabilities"
|
|
* Normally we'd use runDir for pid files, but because we're using
|
|
* -daemonize we need QEMU to be allowed to create them, rather
|
|
* than libvirtd. So we're using libDir which QEMU can write to
|
|
*/
|
|
if (virAsprintf(&pidfile, "%s/%s", libDir, "capabilities.pidfile") < 0)
|
|
goto cleanup;
|
|
|
|
memset(&config, 0, sizeof(config));
|
|
config.type = VIR_DOMAIN_CHR_TYPE_UNIX;
|
|
config.data.nix.path = monpath;
|
|
config.data.nix.listen = false;
|
|
|
|
VIR_DEBUG("Try to get caps via QMP qemuCaps=%p", qemuCaps);
|
|
|
|
/*
|
|
* We explicitly need to use -daemonize here, rather than
|
|
* virCommandDaemonize, because we need to synchronize
|
|
* with QEMU creating its monitor socket API. Using
|
|
* daemonize guarantees control won't return to libvirt
|
|
* until the socket is present.
|
|
*/
|
|
cmd = virCommandNewArgList(qemuCaps->binary,
|
|
"-S",
|
|
"-no-user-config",
|
|
"-nodefaults",
|
|
"-nographic",
|
|
"-M", "none",
|
|
"-qmp", monarg,
|
|
"-pidfile", pidfile,
|
|
"-daemonize",
|
|
NULL);
|
|
virCommandAddEnvPassCommon(cmd);
|
|
virCommandClearCaps(cmd);
|
|
virCommandSetGID(cmd, runGid);
|
|
virCommandSetUID(cmd, runUid);
|
|
|
|
if (virCommandRun(cmd, &status) < 0)
|
|
goto cleanup;
|
|
|
|
if (status != 0) {
|
|
ret = 0;
|
|
VIR_DEBUG("QEMU %s exited with status %d", qemuCaps->binary, status);
|
|
goto cleanup;
|
|
}
|
|
|
|
if (virPidFileReadPath(pidfile, &pid) < 0) {
|
|
VIR_DEBUG("Failed to read pidfile %s", pidfile);
|
|
ret = 0;
|
|
goto cleanup;
|
|
}
|
|
|
|
memset(&vm, 0, sizeof(vm));
|
|
vm.pid = pid;
|
|
|
|
if (!(mon = qemuMonitorOpen(&vm, &config, true, &callbacks, NULL))) {
|
|
ret = 0;
|
|
goto cleanup;
|
|
}
|
|
|
|
virObjectLock(mon);
|
|
|
|
if (qemuMonitorSetCapabilities(mon) < 0) {
|
|
virErrorPtr err = virGetLastError();
|
|
VIR_DEBUG("Failed to set monitor capabilities %s",
|
|
err ? err->message : "<unknown problem>");
|
|
ret = 0;
|
|
goto cleanup;
|
|
}
|
|
|
|
if (qemuMonitorGetVersion(mon,
|
|
&major, &minor, µ,
|
|
&package) < 0) {
|
|
virErrorPtr err = virGetLastError();
|
|
VIR_DEBUG("Failed to query monitor version %s",
|
|
err ? err->message : "<unknown problem>");
|
|
ret = 0;
|
|
goto cleanup;
|
|
}
|
|
|
|
VIR_DEBUG("Got version %d.%d.%d (%s)",
|
|
major, minor, micro, NULLSTR(package));
|
|
|
|
if (major < 1 || (major == 1 && minor < 2)) {
|
|
VIR_DEBUG("Not new enough for QMP capabilities detection");
|
|
ret = 0;
|
|
goto cleanup;
|
|
}
|
|
|
|
qemuCaps->version = major * 1000000 + minor * 1000 + micro;
|
|
qemuCaps->usedQMP = true;
|
|
|
|
virQEMUCapsInitQMPBasic(qemuCaps);
|
|
|
|
if (virQEMUCapsInitArchQMPBasic(qemuCaps, mon) < 0)
|
|
goto cleanup;
|
|
|
|
/* USB option is supported v1.3.0 onwards */
|
|
if (qemuCaps->version >= 1003000)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_USB_OPT);
|
|
|
|
/* WebSockets were introduced between 1.3.0 and 1.3.1 */
|
|
if (qemuCaps->version >= 1003001)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_VNC_WEBSOCKET);
|
|
|
|
if (qemuCaps->version >= 1006000)
|
|
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DEVICE_VIDEO_PRIMARY);
|
|
|
|
if (virQEMUCapsProbeQMPCommands(qemuCaps, mon) < 0)
|
|
goto cleanup;
|
|
if (virQEMUCapsProbeQMPEvents(qemuCaps, mon) < 0)
|
|
goto cleanup;
|
|
if (virQEMUCapsProbeQMPObjects(qemuCaps, mon) < 0)
|
|
goto cleanup;
|
|
if (virQEMUCapsProbeQMPMachineTypes(qemuCaps, mon) < 0)
|
|
goto cleanup;
|
|
if (virQEMUCapsProbeQMPCPUDefinitions(qemuCaps, mon) < 0)
|
|
goto cleanup;
|
|
if (virQEMUCapsProbeQMPKVMState(qemuCaps, mon) < 0)
|
|
goto cleanup;
|
|
if (virQEMUCapsProbeQMPTPM(qemuCaps, mon) < 0)
|
|
goto cleanup;
|
|
if (virQEMUCapsProbeQMPCommandLine(qemuCaps, mon) < 0)
|
|
goto cleanup;
|
|
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
if (mon)
|
|
virObjectUnlock(mon);
|
|
qemuMonitorClose(mon);
|
|
virCommandAbort(cmd);
|
|
virCommandFree(cmd);
|
|
VIR_FREE(monarg);
|
|
VIR_FREE(monpath);
|
|
VIR_FREE(package);
|
|
|
|
if (pid != 0) {
|
|
char ebuf[1024];
|
|
|
|
VIR_DEBUG("Killing QMP caps process %lld", (long long) pid);
|
|
if (virProcessKill(pid, SIGKILL) < 0 && errno != ESRCH)
|
|
VIR_ERROR(_("Failed to kill process %lld: %s"),
|
|
(long long) pid,
|
|
virStrerror(errno, ebuf, sizeof(ebuf)));
|
|
}
|
|
if (pidfile) {
|
|
unlink(pidfile);
|
|
VIR_FREE(pidfile);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
virQEMUCapsPtr virQEMUCapsNewForBinary(const char *binary,
|
|
const char *libDir,
|
|
uid_t runUid,
|
|
gid_t runGid)
|
|
{
|
|
virQEMUCapsPtr qemuCaps = virQEMUCapsNew();
|
|
struct stat sb;
|
|
int rv;
|
|
|
|
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->mtime = sb.st_mtime;
|
|
|
|
/* 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 ((rv = virQEMUCapsInitQMP(qemuCaps, libDir, runUid, runGid)) < 0)
|
|
goto error;
|
|
|
|
if (!qemuCaps->usedQMP &&
|
|
virQEMUCapsInitHelp(qemuCaps, runUid, runGid) < 0)
|
|
goto error;
|
|
|
|
return qemuCaps;
|
|
|
|
error:
|
|
virObjectUnref(qemuCaps);
|
|
qemuCaps = NULL;
|
|
return NULL;
|
|
}
|
|
|
|
|
|
bool virQEMUCapsIsValid(virQEMUCapsPtr qemuCaps)
|
|
{
|
|
struct stat sb;
|
|
|
|
if (!qemuCaps->binary)
|
|
return true;
|
|
|
|
if (stat(qemuCaps->binary, &sb) < 0)
|
|
return false;
|
|
|
|
return sb.st_mtime == qemuCaps->mtime;
|
|
}
|
|
|
|
|
|
static void
|
|
virQEMUCapsHashDataFree(void *payload, const void *key ATTRIBUTE_UNUSED)
|
|
{
|
|
virObjectUnref(payload);
|
|
}
|
|
|
|
|
|
virQEMUCapsCachePtr
|
|
virQEMUCapsCacheNew(const char *libDir,
|
|
uid_t runUid,
|
|
gid_t runGid)
|
|
{
|
|
virQEMUCapsCachePtr cache;
|
|
|
|
if (VIR_ALLOC(cache) < 0)
|
|
return NULL;
|
|
|
|
if (virMutexInit(&cache->lock) < 0) {
|
|
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Unable to initialize mutex"));
|
|
VIR_FREE(cache);
|
|
return NULL;
|
|
}
|
|
|
|
if (!(cache->binaries = virHashCreate(10, virQEMUCapsHashDataFree)))
|
|
goto error;
|
|
if (VIR_STRDUP(cache->libDir, libDir) < 0)
|
|
goto error;
|
|
|
|
cache->runUid = runUid;
|
|
cache->runGid = runGid;
|
|
|
|
return cache;
|
|
|
|
error:
|
|
virQEMUCapsCacheFree(cache);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
virQEMUCapsPtr
|
|
virQEMUCapsCacheLookup(virQEMUCapsCachePtr cache, const char *binary)
|
|
{
|
|
virQEMUCapsPtr ret = NULL;
|
|
virMutexLock(&cache->lock);
|
|
ret = virHashLookup(cache->binaries, binary);
|
|
if (ret &&
|
|
!virQEMUCapsIsValid(ret)) {
|
|
VIR_DEBUG("Cached capabilities %p no longer valid for %s",
|
|
ret, binary);
|
|
virHashRemoveEntry(cache->binaries, binary);
|
|
ret = NULL;
|
|
}
|
|
if (!ret) {
|
|
VIR_DEBUG("Creating capabilities for %s",
|
|
binary);
|
|
ret = virQEMUCapsNewForBinary(binary, cache->libDir,
|
|
cache->runUid, cache->runGid);
|
|
if (ret) {
|
|
VIR_DEBUG("Caching capabilities %p for %s",
|
|
ret, binary);
|
|
if (virHashAddEntry(cache->binaries, binary, ret) < 0) {
|
|
virObjectUnref(ret);
|
|
ret = NULL;
|
|
}
|
|
}
|
|
}
|
|
VIR_DEBUG("Returning caps %p for %s", ret, binary);
|
|
virObjectRef(ret);
|
|
virMutexUnlock(&cache->lock);
|
|
return ret;
|
|
}
|
|
|
|
|
|
virQEMUCapsPtr
|
|
virQEMUCapsCacheLookupCopy(virQEMUCapsCachePtr cache, const char *binary)
|
|
{
|
|
virQEMUCapsPtr qemuCaps = virQEMUCapsCacheLookup(cache, binary);
|
|
virQEMUCapsPtr ret;
|
|
|
|
if (!qemuCaps)
|
|
return NULL;
|
|
|
|
ret = virQEMUCapsNewCopy(qemuCaps);
|
|
virObjectUnref(qemuCaps);
|
|
return ret;
|
|
}
|
|
|
|
|
|
void
|
|
virQEMUCapsCacheFree(virQEMUCapsCachePtr cache)
|
|
{
|
|
if (!cache)
|
|
return;
|
|
|
|
VIR_FREE(cache->libDir);
|
|
virHashFree(cache->binaries);
|
|
virMutexDestroy(&cache->lock);
|
|
VIR_FREE(cache);
|
|
}
|
|
|
|
bool
|
|
virQEMUCapsUsedQMP(virQEMUCapsPtr qemuCaps)
|
|
{
|
|
return qemuCaps->usedQMP;
|
|
}
|
|
|
|
bool
|
|
virQEMUCapsSupportsChardev(virDomainDefPtr def,
|
|
virQEMUCapsPtr qemuCaps,
|
|
virDomainChrDefPtr chr)
|
|
{
|
|
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV) ||
|
|
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE))
|
|
return false;
|
|
|
|
if (def->os.arch != VIR_ARCH_ARMV7L)
|
|
return true;
|
|
|
|
/* This may not be true for all ARM machine types, but at least
|
|
* the only supported non-virtio serial devices of vexpress and versatile
|
|
* don't have the -chardev property wired up. */
|
|
return (chr->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO ||
|
|
(chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE &&
|
|
chr->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO));
|
|
}
|