On 12/12/19 12:54 AM, Ni, Ray wrote:
>> + // Allocate GHCB and per-CPU variable pages.
>> + //
>> + GhcbPageCount = mMaxCpuCount * 2;
>> + GhcbBase = AllocatePages (GhcbPageCount);
>> + ASSERT (GhcbBase != NULL);
>> +
>> + GhcbBasePa = (PHYSICAL_ADDRESS)(UINTN) GhcbBase;
>> +
>> + DecryptSta
> + // Allocate GHCB and per-CPU variable pages.
> + //
> + GhcbPageCount = mMaxCpuCount * 2;
> + GhcbBase = AllocatePages (GhcbPageCount);
> + ASSERT (GhcbBase != NULL);
> +
> + GhcbBasePa = (PHYSICAL_ADDRESS)(UINTN) GhcbBase;
> +
> + DecryptStatus = MemEncryptSevClearPageEncMask (
> +0
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198
Allocate memory for the GHCB pages and the per-CPU variable pages during
SEV initialization for use during Pei and Dxe phases. The GHCB page(s)
must be shared pages, so clear the encryption mask from the current page
table entries. Upon succe
