Re: [PATCH 0/2] KVM: x86: Propagate AMD-specific IBRS bits to guests

Borislav Petkov
2023-03-06T21:54:57Z

On Mon, Mar 06, 2023 at 10:47:18PM +0100, Paolo Bonzini wrote:
> It's very rare that KVM can provide a CPUID feature if the kernel has
> masked it,

I'm talking about pure hw feature bits which don't need any enablement.
Like AVX512 insns subset support or something else which the hw does
without the need for the kernel.

Those should be KVM-only if baremetal doesn't use them.

--
Regards/Gruss,
Boris.