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Date:   Thu, 19 Jan 2023 21:01:25 +0000
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Subject: Re: [V5 PATCH 0/3] Execute hypercalls according to host cpu
From:   Sean Christopherson <seanjc@google.com>
To:     Sean Christopherson <seanjc@google.com>, x86@kernel.org,
        kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-kselftest@vger.kernel.org,
        Vishal Annapurve <vannapurve@google.com>
Cc:     pbonzini@redhat.com, shuah@kernel.org, bgardon@google.com,
        peterx@redhat.com, vkuznets@redhat.com, dmatlack@google.com,
        pgonda@google.com, andrew.jones@linux.dev,
        Oliver Upton <oliver.upton@linux.dev>
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On Wed, 11 Jan 2023 00:44:42 +0000, Vishal Annapurve wrote:
> Confidential VMs(CVMs) need to execute hypercall instruction as per the CPU
> type. Normally KVM emulates the vmcall/vmmcall instruction by patching
> the guest code at runtime. Such a guest memory manipulation by KVM is
> not allowed with CVMs and is also undesirable in general.
> 
> This series adds support of executing hypercall as per the host cpu vendor.
> CPU vendor is queried early during selftest setup and guest setup to be
> reused later.
> 
> [...]

Applied to kvm-x86 selftests, thanks!

[1/3] KVM: selftests: x86: Use "this_cpu" prefix for cpu vendor queries
      https://github.com/kvm-x86/linux/commit/093db78b8e6b
[2/3] KVM: selftests: x86: Cache host CPU vendor (AMD vs. Intel)
      https://github.com/kvm-x86/linux/commit/832ffb370183
[3/3] KVM: selftests: x86: Use host's native hypercall instruction in kvm_hypercall()
      https://github.com/kvm-x86/linux/commit/019dfeb31650

--
https://github.com/kvm-x86/linux/tree/next
https://github.com/kvm-x86/linux/tree/fixes