Re: [PATCH v2 24/25] KVM: x86: Introduce KVM_TDX_GET_CPUID

[Edgecombe, Rick P]

On Wed, 2025-01-22 at 15:43 +0800, Xiaoyao Li wrote:
> > Since we are not filtering by KVM supported features anymore, maybe just use
> > the
> > max leaf for the host CPU, like:
> 
> host value is not matched with the value returned by TDX module.
> I.e., On my SPR machine, the boot_cpu_data.cpuid_level is 0x20, while 
> TDX module returns 0x23. It at least fails to report the leaf 0x21 to 
> userspace, which is a always valid leaf for TD guest.

Good point, we can use the cpuid level read from the TD.