Hi,
> + do {
> + AsmCpuid (0, &LargestEax, &Ebx, &Ecx, &Edx);
Use ConfidentialComputing PCD ?
> +BOOLEAN
> +EFIAPI
> +AccessMsrNative (
I'd suggest to reverse the logic, i.e. have a AccessMsrTdxCall() which
returns true in case (a) tdx is active and (b) the msr is not on the
white list for native access ...
> +{
> + UINT64 Val;
> + UINT64 Status;
> + if (!AccessMsrNative (MsrIndex) && BaseXApicIsTdxGuest ()) {
... the just use "if (AccessMsrTdxCall(MsrIndex)) { ..." here.
Beside that: Are the apic msr registers the only ones which can
be accessed directly?
take care,
Gerd
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