On 8/19/2024 9:33 AM, Tao Su wrote:
On Mon, Aug 12, 2024 at 03:48:05PM -0700, Rick Edgecombe wrote:
From: Xiaoyao Li <xiaoyao.li@xxxxxxxxx>
While TDX module reports a set of capabilities/features that it
supports, what KVM currently supports might be a subset of them.
E.g., DEBUG and PERFMON are supported by TDX module but currently not
supported by KVM.
Introduce a new struct kvm_tdx_caps to store KVM's capabilities of TDX.
supported_attrs and suppported_xfam are validated against fixed0/1
values enumerated by TDX module. Configurable CPUID bits derive from TDX
module plus applying KVM's capabilities (KVM_GET_SUPPORTED_CPUID),
i.e., mask off the bits that are configurable in the view of TDX module
but not supported by KVM yet.
But this mask is not implemented in this patch, which should be in patch24?
yes, the commit message needs to be updated. Even more the patches need
to be re-organized.
KVM_TDX_CPUID_NO_SUBLEAF is the concept from TDX module, switch it to 0
and use KVM_CPUID_FLAG_SIGNIFCANT_INDEX, which are the concept of KVM.
Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx>
Signed-off-by: Rick Edgecombe <rick.p.edgecombe@xxxxxxxxx>
[...]
