Re: [PATCH 00/25] TDX vCPU/VM creation

[Tony Lindgren]

Hi,

On Mon, Aug 12, 2024 at 03:47:55PM -0700, Rick Edgecombe wrote:
> The problem with this solution is that using, effectively
> KVM_GET_SUPPORTED_CPUID internally, is not an effective way to filter the
> CPUID bits. In practice, the spots where TDX support does the filtering
> needed some adjustments. See the log of “Add CPUID bits missing from
> KVM_GET_SUPPORTED_CPUID” for more information.

We can generate a TDX suitable default CPUID configuration by adding
KVM_GET_SUPPORTED_TDX_CPUID. This would handled similar to the existing
KVM_GET_SUPPORTED_CPUID and KVM_GET_SUPPORTED_HV_CPUID.

Or are there some reasons to avoid adding this?

Regards,

Tony