Hi > > The base VmgExitLib library provides a default limited interface to > > handle #VE exception. To provide full support, the OVMF version of > > VmgExitLib is extended to provide full support of #VE handler. > > > > PcdIgnoreVeHalt is created in OvmfPkg.dec to ignore the VE halt. > > Why this is useful? This Pcd is deprecated. It will be removed in the next version. > > > + X64/TdVmcallCpuid.nasm > > Hmm, why not simply call the functions added by patch #2? > TdVmcall in patch #2 assumes the returned value is in r11 (if there is returned data). But from [GHCI] spec Table 3-17, TDVMCALL_CPUID returns the values in R12/R13/R14/R15. So there has to be a new TdVmcallCpuid.nasm. [GHCI] https://www.intel.com/content/dam/develop/external/us/en/documents/intel-tdx-guest-hypervisor-communication-interface-1.0-344426-002.pdf
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