[libvirt] [PATCH v2 10/10] cpu_x86: Use signature in CPU detection code

[Peter Krempa]

On Thu, Jun 09, 2016 at 11:56:17 +0200, Jiri Denemark wrote:
> Our current detection code uses just the number of CPU features which
> need to be added/removed from the CPU model to fully describe the CPUID
> data. The smallest number wins. But this may sometimes generate wrong
> results as one can see from the fixed test cases. This patch modifies
> the algorithm to prefer the CPU model with matching signature even if
> this model results in a longer list of additional features.
> 
> Signed-off-by: Jiri Denemark <jdenemar at redhat.com>
> ---
>  src/cpu/cpu_map.xml                                |  16 +++
>  src/cpu/cpu_x86.c                                  | 148 +++++++++++++++++++--
>  .../cputestdata/x86-cpuid-Core-i7-5600U-guest.xml  |  11 +-
>  tests/cputestdata/x86-cpuid-Core2-E6850-guest.xml  |   5 +-
>  tests/cputestdata/x86-cpuid-Core2-E6850-host.xml   |   5 +-
>  tests/cputestdata/x86-cpuid-Xeon-5110-guest.xml    |   5 +-
>  tests/cputestdata/x86-cpuid-Xeon-5110-host.xml     |   5 +-
>  tests/cputestdata/x86-host+penryn-force-result.xml |   4 +-
>  8 files changed, 176 insertions(+), 23 deletions(-)

ACK