Re: [PATCH] kvm/i386: Set proper nested state format for SVM

[Paolo Bonzini]

On 16/11/20 18:02, Tom Lendacky wrote:
> From: Tom Lendacky<thomas.lendacky@amd.com>
>
> Currently, the nested state format is hardcoded to VMX. This will result
> in kvm_put_nested_state() returning an error because the KVM SVM support
> checks for the nested state to be KVM_STATE_NESTED_FORMAT_SVM. As a
> result, kvm_arch_put_registers() errors out early.
>
> Update the setting of the format based on the virtualization feature:
>    VMX - KVM_STATE_NESTED_FORMAT_VMX
>    SVM - KVM_STATE_NESTED_FORMAT_SVM

Looks good, but what are the symptoms of this in practice?

Paolo