Re: [PATCH 08/12] KVM: nSVM: Use KVM-governed feature framework to track "vVM{SAVE,LOAD} enabled"

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Subject: Re: [PATCH 08/12] KVM: nSVM: Use KVM-governed feature framework to track "vVM{SAVE,LOAD} enabled"
From: Yu Zhang <yu.c.zhang@xxxxxxxxxxxxxxx>
Date: Tue, 21 Feb 2023 23:33:06 +0800
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>, Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>, kvm@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20230221152349.ulcjtbnvziair7ff@linux.intel.com>
References: <20230217231022.816138-1-seanjc@google.com> <20230217231022.816138-9-seanjc@google.com> <20230221152349.ulcjtbnvziair7ff@linux.intel.com>
User-agent: NeoMutt/20171215

> Sorry, why guest_cpuid_is_intel(vcpu)? Is it becasue that a AMD host with virtual
> VMSAVE/VMLOAD capability will always expose this feature for all AMD guests? 

Oh, sorry. I missed the guest_cpuid_has() in kvm_governed_feature_check_and_set().
So please just ignore my 2nd question.

As to the check of guest_cpuid_is_intel(), is it necessary?

B.R.
Yu

Follow-Ups:
- Re: [PATCH 08/12] KVM: nSVM: Use KVM-governed feature framework to track "vVM{SAVE,LOAD} enabled"
  - From: Sean Christopherson

References:
- [PATCH 00/12] KVM: x86: Add "governed" X86_FEATURE framework
  - From: Sean Christopherson
- [PATCH 08/12] KVM: nSVM: Use KVM-governed feature framework to track "vVM{SAVE,LOAD} enabled"
  - From: Sean Christopherson
- Re: [PATCH 08/12] KVM: nSVM: Use KVM-governed feature framework to track "vVM{SAVE,LOAD} enabled"
  - From: Yu Zhang

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