[PATCH 00/22] qemu: Store default CPU in domain XML

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When starting a domain without a CPU model specified in the domain XML,
QEMU will choose a default one. Which is fine unless the domain gets
migrated to another host because libvirt doesn't perform any CPU ABI
checks and the virtual CPU provided by QEMU on the destination host can
differ from the one on the source host.

With QEMU 4.2.0 we can probe for the default CPU model used by QEMU for
a particular machine type and store it in the domain XML. This way the
chosen CPU model is more visible to users and libvirt will make sure
the guest will see the exact same CPU after migration.

https://bugzilla.redhat.com/show_bug.cgi?id=1598151
https://bugzilla.redhat.com/show_bug.cgi?id=1598162

Jiri Denemark (22):
  conf: Use VIR_AUTO* in virDomainCapsCPUModelsAdd
  conf: Drop nameLen parameter from virDomainCapsCPUModelsAdd
  qemu: Copy CPU models in virQEMUCapsGetCPUDefinitions
  qemu: Filter models in virQEMUCapsGetCPUDefinitions
  qemu: Use virQEMUCapsGetCPUDefinitions more
  qemu: Use VIR_AUTOPTR in qemuMonitorJSONGetCPUDefinitions
  qemu: Introduce qemuMonitorCPUDefs struct
  qemu: Flatten qemuMonitorCPUDefs.cpus
  build: Export virStringListCopy internal API
  qemu: Add qemuMonitorCPUDefsCopy
  qemu: Use VIR_AUTOFREE in virQEMUCapsLoadCPUModels
  qemu: Introduce virQEMUCapsCPUDefsToModels
  qemu: Switch qemuCaps to use qemuMonitorCPUDefs
  conf: Drop unused virDomainCapsCPUModelsFilter
  conf: Drop virDomainCapsCPUModelsAddSteal
  qemu: Store typename from query-cpu-definitions in qemuCaps
  qemu: Probe for default CPU types
  qemu: Introduce virQEMUCapsGetMachineDefaultCPU
  qemu: Drop unused virQEMUCapsGetDefaultMachine
  qemu: Use VIR_AUTOUNREF in qemuDomainDefPostParse
  conf: Define VIR_AUTOPTR for virCPUDef
  qemu: Store default CPU in domain XML

 src/conf/cpu_conf.h                           |    1 +
 src/conf/domain_capabilities.c                |   86 +-
 src/conf/domain_capabilities.h                |    8 -
 src/libvirt_private.syms                      |    3 +-
 src/qemu/qemu_capabilities.c                  |  324 +--
 src/qemu/qemu_capabilities.h                  |    8 +-
 src/qemu/qemu_domain.c                        |   79 +-
 src/qemu/qemu_driver.c                        |    4 +-
 src/qemu/qemu_monitor.c                       |   74 +-
 src/qemu/qemu_monitor.h                       |   18 +-
 src/qemu/qemu_monitor_json.c                  |   81 +-
 src/qemu/qemu_monitor_json.h                  |    2 +-
 src/qemu/qemu_process.c                       |    7 +-
 tests/cputest.c                               |    7 +-
 .../caps_2.10.0.aarch64.xml                   |  126 +-
 .../caps_2.10.0.ppc64.xml                     | 1734 ++++++++--------
 .../caps_2.10.0.s390x.xml                     |  264 +--
 .../caps_2.10.0.x86_64.xml                    |  132 +-
 .../caps_2.11.0.s390x.xml                     |  264 +--
 .../caps_2.11.0.x86_64.xml                    |  136 +-
 .../caps_2.12.0.aarch64.xml                   |  136 +-
 .../caps_2.12.0.ppc64.xml                     | 1750 ++++++++---------
 .../caps_2.12.0.s390x.xml                     |  264 +--
 .../caps_2.12.0.x86_64.xml                    |  180 +-
 .../qemucapabilitiesdata/caps_2.9.0.ppc64.xml | 1734 ++++++++--------
 .../qemucapabilitiesdata/caps_2.9.0.s390x.xml |  256 +--
 .../caps_2.9.0.x86_64.xml                     |  128 +-
 .../qemucapabilitiesdata/caps_3.0.0.ppc64.xml | 1750 ++++++++---------
 .../qemucapabilitiesdata/caps_3.0.0.s390x.xml |  272 +--
 .../caps_3.0.0.x86_64.xml                     |  184 +-
 .../qemucapabilitiesdata/caps_3.1.0.ppc64.xml | 1750 ++++++++---------
 .../caps_3.1.0.x86_64.xml                     |  196 +-
 .../caps_4.0.0.aarch64.xml                    |  148 +-
 .../qemucapabilitiesdata/caps_4.0.0.ppc64.xml | 1750 ++++++++---------
 .../qemucapabilitiesdata/caps_4.0.0.s390x.xml |  284 +--
 .../caps_4.0.0.x86_64.xml                     |  196 +-
 .../caps_4.1.0.x86_64.xml                     |  400 ++--
 .../caps_4.2.0.x86_64.xml                     |  492 ++---
 tests/qemumonitorjsontest.c                   |   38 +-
 .../disk-cache.x86_64-latest.args             |    1 +
 .../disk-cdrom-network.x86_64-latest.args     |    1 +
 .../disk-cdrom-tray.x86_64-latest.args        |    1 +
 .../disk-copy_on_read.x86_64-latest.args      |    1 +
 .../disk-detect-zeroes.x86_64-latest.args     |    1 +
 .../disk-floppy-q35-2_11.x86_64-latest.args   |    1 +
 .../disk-floppy-q35-2_9.x86_64-latest.args    |    1 +
 .../os-firmware-bios.x86_64-latest.args       |    1 +
 ...os-firmware-efi-secboot.x86_64-latest.args |    1 +
 .../os-firmware-efi.x86_64-latest.args        |    1 +
 .../tpm-emulator-tpm2-enc.x86_64-latest.args  |    1 +
 .../tpm-emulator-tpm2.x86_64-latest.args      |    1 +
 .../tpm-emulator.x86_64-latest.args           |    1 +
 .../tseg-explicit-size.x86_64-latest.args     |    1 +
 .../vhost-vsock-auto.x86_64-latest.args       |    1 +
 .../vhost-vsock.x86_64-latest.args            |    1 +
 .../os-firmware-bios.x86_64-latest.xml        |    3 +
 .../os-firmware-efi-secboot.x86_64-latest.xml |    3 +
 .../os-firmware-efi.x86_64-latest.xml         |    3 +
 .../tpm-emulator-tpm2-enc.x86_64-latest.xml   |    3 +
 .../tpm-emulator-tpm2.x86_64-latest.xml       |    3 +
 .../tpm-emulator.x86_64-latest.xml            |    3 +
 .../tpm-passthrough-crb.x86_64-latest.xml     |    3 +
 .../tpm-passthrough.x86_64-latest.xml         |    3 +
 63 files changed, 7721 insertions(+), 7585 deletions(-)

-- 
2.23.0

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