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SubjectRe: [RFC PATCH v5 027/104] KVM: TDX: initialize VM with TDX specific parameters
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On 4/6/22 04:06, Xiaoyao Li wrote:
>>
>> Indeed, it would be easier to use the existing cpuid data in struct
>> kvm_vcpu, because right now there is no way to ensure that they are
>> consistent.
>>
>> Why is KVM_SET_CPUID2 not enough?  Are there any modifications done by
>> KVM that affect the measurement?
>
> Then we get the situation that KVM_TDX_INIT_VM must be called after 1
> vcpu is created. It seems illogical that it has chance to fail the VM
> scope initialization after 1 vcpu is successfully created.

I see. Yeah, it makes sense to have the CPUID in KVM_TDX_INIT_VM then.

Paolo

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