Re: [PATCH 2/2] kvm/x86: don't expose MSR_IA32_UMWAIT_CONTROL unconditionally
From: Paolo Bonzini
Date: Thu May 21 2020 - 04:24:30 EST
On 21/05/20 06:33, Xiaoyao Li wrote:
> I remember there is certainly some reason why we don't expose WAITPKG to
> guest by default.
That's a userspace policy decision. KVM_GET_SUPPORTED_CPUID should
still tell userspace that it's supported.
Paolo
> Tao, please help clarify it.