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

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Message-ID: <20230221153306.qubx7tfmasnvodeu@linux.intel.com>
Date:   Tue, 21 Feb 2023 23:33:06 +0800
From:   Yu Zhang <yu.c.zhang@...ux.intel.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/12] KVM: nSVM: Use KVM-governed feature framework to
 track "vVM{SAVE,LOAD} enabled"

> 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