Re: [libvirt] [PATCH] Add Skylake Cpu Model
On Tue, May 17, 2016 at 08:45:37 +0000, Qiao, Liyong wrote:
Hi Jirka
Thanks for your comments,, the qemu patch is on the way, check
https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg03951.html
Right, once the CPU model is added to QEMU, we'll update our CPU map
too.
Even we cann't use qemu to boot a Skylake cpu virtual machine,
but if
we specify in host mode, we still can
Yes, but you can do that even if libvirt does not report the host CPU as
Skylake.
And besides, the follow cpu feature has already in qemu tree.
+ <!-- XSAVE CPUID[EAX=0xd,ECX=1].EAX -->
+ <feature name='xsaveopt'>
+ <cpuid function='0xd' eax='0x00000001'/>
+ </feature>
+ <feature name='xsavec'>
+ <cpuid function='0xd' eax='0x00000002'/>
+ </feature>
+ <feature name='xgetbv1'>
+ <cpuid function='0xd' eax='0x00000004'/>
+ </feature>
+ <feature name='xsaves' migratable='no'>
+ <cpuid function='0xd' eax='0x00000008'/>
+ </feature>
Yes, these features could be added even now, although this patch is not
enough. I'll take care of adding the features to libvirt.
Jirka