Hi,
> For tdx, the actual max physical address bits is decreased by the KEY_ID_BITS
> bits.
> But the max physical address bits reported from CPUID instruction don't
> change.
I guess the physical address bits calculation for tdx needs adjustment
then. Right now we have:
if (TdIsEnabled ()) {
if (TdSharedPageMask () == (1ULL << 47)) {
PhysMemAddressWidth = 48;
} else {
PhysMemAddressWidth = 52;
}
}
See PlatformAddressWidthInitialization() in PlatformInitLib/MemDetect.c
Which would be the third place needing the same logic. Maybe worth
thinking about a helper function in a library somewhere, so we don't
cut&paste the same code snippet again and again ...
take care,
Gerd
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