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? > 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> [...]
