linux-kernel - Re: [sos-linux-ext-patches] [PATCH v4 2/8] KVM: selftests: SEV-SNP test for KVM_SEV

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Message-ID: <a420bcb4-4979-4143-83cc-1f8f1f38dcc7@amd.com>
Date: Fri, 10 Jan 2025 15:55:09 -0600
From: Pratik Rajesh Sampat <prsampat@....com>
To: "Nikunj A. Dadhania" <nikunj@....com>,
 "Pratik R. Sampat" <pratikrajesh.sampat@....com>, kvm@...r.kernel.org
Cc: seanjc@...gle.com, pbonzini@...hat.com, pgonda@...gle.com,
 thomas.lendacky@....com, michael.roth@....com, shuah@...nel.org,
 linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [sos-linux-ext-patches] [PATCH v4 2/8] KVM: selftests: SEV-SNP
 test for KVM_SEV_INIT2

On 1/9/25 11:52 PM, Nikunj A. Dadhania wrote:
> 
> 
> On 11/15/2024 5:10 AM, Pratik R. Sampat wrote:
>> Add the X86_FEATURE_SNP CPU feature to the architectural definition for
>> the SEV-SNP VM type to exercise the KVM_SEV_INIT2 call. Ensure that the
>> SNP test is skipped in scenarios where CPUID supports it but KVM does
>> not, so that a failure is not reported in such cases.
>>
>> Signed-off-by: Pratik R. Sampat <pratikrajesh.sampat@....com>
>> ---
>>  #define X86_FEATURE_SEV_ES		KVM_X86_CPU_FEATURE(0x8000001F, 0, EAX, 3)
>> +#define X86_FEATURE_SNP			KVM_X86_CPU_FEATURE(0x8000001F, 0, EAX, 4)
> 
> Additionally, please add KVM_X86_SNP_VM to the Documentation/virt/kvm/api.rst
> 

Ack, will add that.

Thanks for your review!
Pratik