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Re: [libvirt] [PATCH v3 17/28] qemu: Get host CPU model from QEMU on x86_64



On Thu, Feb 23, 2017 at 03:15:15PM +0100, Jiri Denemark wrote:
> Until now host-model CPU mode tried to enable all CPU features supported
> by the host CPU even if QEMU/KVM did not support them. This caused a
> number of issues and made host-model quite unreliable. Asking QEMU for
> the CPU it can provide and the current host makes host-model much more
> robust.
> 
> This commit fixes the following bugs:
> 
>     https://bugzilla.redhat.com/show_bug.cgi?id=1018251
>     https://bugzilla.redhat.com/show_bug.cgi?id=1371617
>     https://bugzilla.redhat.com/show_bug.cgi?id=1372581
>     https://bugzilla.redhat.com/show_bug.cgi?id=1404627
>     https://bugzilla.redhat.com/show_bug.cgi?id=870071
> 
> In addition to that, the following bug should be mostly limited to cases
> when an unsupported feature is explicitly requested:
> 
>     https://bugzilla.redhat.com/show_bug.cgi?id=1335534
> 
> Signed-off-by: Jiri Denemark <jdenemar redhat com>
> ---
> 
> Notes:
>     Version 3:
>     - added #include "cpu/cpu_x86.h" removed in an earlier patch
>     - adapted to changes to qemuMonitorCPUModelProperty
>     
>     Version 2:
>     - no change
> 
>  src/qemu/qemu_capabilities.c                       | 77 ++++++++++++++++++++++
>  .../domaincapsschemadata/qemu_2.9.0-tcg.x86_64.xml | 33 +++++++++-
>  tests/domaincapsschemadata/qemu_2.9.0.x86_64.xml   | 11 +++-
>  3 files changed, 119 insertions(+), 2 deletions(-)

ACK

Pavel

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