Re: [PATCH v3 6/6] KVM: VMX: Move VERW closer to VMentry for MDS mitigation

[Pawan Gupta]

On Thu, Oct 26, 2023 at 01:17:47PM -0700, Sean Christopherson wrote:
> Alternatively, and maybe even preferably, this would make it more obvious that
> the two are mutually exclusive and would also be a (very, very) small perf win
> when the mitigation is enabled.

Agree.

> -       vmx_disable_fb_clear(vmx);
> +       if (!cpu_feature_enabled(X86_FEATURE_CLEAR_CPU_BUF))
> +               vmx_disable_fb_clear(vmx);