On Tue, Jun 11, 2019 at 08:32:59PM -0700, Fenghua Yu wrote:
> Currently KVM doesn't simulate scattered features (the ones in CPUID_LNX_*
> in cpuid_leafs) as reverse_cpuid[] doesn't contain CPUID_LNX_*.
43500e6f294d ("x86/cpufeatures: Remove get_scattered_cpuid_leaf()")
> After the X86_FEATURES_CQM_* features are changed to scattered features,
> they will not be simulated by KVM any more as CPUID_F_0_EDX and CPUID_F_1_EDX
> are removed.
Does KVM even support resctrl? I doubt only exporting a couple of CPUID
bits into the guest is enough...
> Should patch #1 simulate X86_FEATURE_CQM_* in KVM? Or let KVM guys handle
> the scattered features?
Right, the scattered thing was removed as KVM didn't need it,
apparently, see above.
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
