[libvirt PATCH 0/6] qemu: Invalidate capabilities when host CPU changes

[Ján Tomko]

On a Monday in 2020, Jiri Denemark wrote:
>The host CPU related info stored in the capabilities cache is no longer
>valid after the host CPU changes. This is not a frequent situation in
>real world, but it can easily happen in nested scenarios when a disk
>image is started with various CPUs.
>
>https://bugzilla.redhat.com/show_bug.cgi?id=1778819
>
>Jiri Denemark (6):
>  util: Define g_autoptr callback for FILE
>  hostcpu: Introduce virHostCPUGetSignature
>  hostcpu: Implement virHostCPUGetSignature for x86
>  hostcpu: Implement virHostCPUGetSignature for ppc64
>  hostcpu: Implement virHostCPUGetSignature for s390
>  qemu: Invalidate capabilities when host CPU changes
>
> src/libvirt_private.syms                      |   2 +
> src/qemu/qemu_capabilities.c                  |  24 ++++
> src/qemu/qemu_capspriv.h                      |   1 +
> src/util/virfile.h                            |   1 +
> src/util/virhostcpu.c                         | 111 ++++++++++++++++++
> src/util/virhostcpu.h                         |   2 +
> src/util/virhostcpupriv.h                     |   4 +
> tests/qemucapsprobe.c                         |   2 +-
> .../linux-ppc64-deconf-cpus.signature         |   1 +
> .../linux-ppc64-subcores1.signature           |   1 +
> .../linux-ppc64-subcores2.signature           |   1 +
> .../linux-ppc64-subcores3.signature           |   1 +
> .../linux-s390x-with-frequency.signature      |   1 +
> .../linux-x86_64-test1.signature              |   1 +
> .../linux-x86_64-test2.signature              |   1 +
> .../linux-x86_64-test3.signature              |   1 +
> .../linux-x86_64-test4.signature              |   1 +
> .../linux-x86_64-test5.signature              |   1 +
> .../linux-x86_64-test6.signature              |   1 +
> .../linux-x86_64-test7.signature              |   1 +
> .../linux-x86_64-test8.signature              |   1 +
> .../linux-x86_64-with-die.signature           |   1 +
> tests/virhostcputest.c                        |  42 ++++++-
> 23 files changed, 201 insertions(+), 2 deletions(-)
> create mode 100644 tests/virhostcpudata/linux-ppc64-deconf-cpus.signature
> create mode 100644 tests/virhostcpudata/linux-ppc64-subcores1.signature
> create mode 100644 tests/virhostcpudata/linux-ppc64-subcores2.signature
> create mode 100644 tests/virhostcpudata/linux-ppc64-subcores3.signature
> create mode 100644 tests/virhostcpudata/linux-s390x-with-frequency.signature
> create mode 100644 tests/virhostcpudata/linux-x86_64-test1.signature
> create mode 100644 tests/virhostcpudata/linux-x86_64-test2.signature
> create mode 100644 tests/virhostcpudata/linux-x86_64-test3.signature
> create mode 100644 tests/virhostcpudata/linux-x86_64-test4.signature
> create mode 100644 tests/virhostcpudata/linux-x86_64-test5.signature
> create mode 100644 tests/virhostcpudata/linux-x86_64-test6.signature
> create mode 100644 tests/virhostcpudata/linux-x86_64-test7.signature
> create mode 100644 tests/virhostcpudata/linux-x86_64-test8.signature
> create mode 100644 tests/virhostcpudata/linux-x86_64-with-die.signature
>

Reviewed-by: Ján Tomko <jtomko at redhat.com>

Jano
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