Re: [PATCH v10 7/7] KVM: x86: virtualize cpuid faulting

[David Matlack]

On Tue, Nov 8, 2016 at 10:39 AM, Kyle Huey <me@xxxxxxxxxxxx> wrote:
> Hardware support for faulting on the cpuid instruction is not required to
> emulate it, because cpuid triggers a VM exit anyways. KVM handles the relevant
> MSRs (MSR_PLATFORM_INFO and MSR_MISC_FEATURES_ENABLE) and upon a
> cpuid-induced VM exit checks the cpuid faulting state and the CPL.
> kvm_require_cpl is even kind enough to inject the GP fault for us.
>
> Signed-off-by: Kyle Huey <khuey@xxxxxxxxxxxx>

Reviewed-by: David Matlack <dmatlack@xxxxxxxxxx>

(v10)