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EmulatorPkg: Add persistent memory in EmuThunkPpi

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The persistent memory is for PEIM to use, and won't lose during cold
or warm reset. PcdPersistentMemorySize is only used by WinHost.c,
other modules can check the persistent memory size using the field
PersistentMemorySize.

Cc: Andrew Fish <afish@apple.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
This commit is contained in:
Liu, Zhiguang
2022-12-06 13:40:52 +08:00
committed by mergify[bot]
parent 1c75bf3c21
commit 22f73b6d2d
6 changed files with 29 additions and 7 deletions
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11
EmulatorPkg/Win/Host/WinHost.c
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@@ -450,6 +450,7 @@ Returns:
UINTN SystemAffinityMask;
INT32 LowBit;
UINTN ResetJumpCode;
EMU_THUNK_PPI *SecEmuThunkPpi;
//
// Enable the privilege so that RTC driver can successfully run SetTime()
@@ -491,7 +492,15 @@ Returns:
//
// PPIs pased into PEI_CORE
//
AddThunkPpi (EFI_PEI_PPI_DESCRIPTOR_PPI, &gEmuThunkPpiGuid, &mSecEmuThunkPpi);
SecEmuThunkPpi = AllocateZeroPool (sizeof (EMU_THUNK_PPI) + FixedPcdGet32 (PcdPersistentMemorySize));
if (SecEmuThunkPpi == NULL) {
SecPrint ("ERROR : Can not allocate memory for SecEmuThunkPpi. Exiting.\n");
exit (1);
}
CopyMem (SecEmuThunkPpi, &mSecEmuThunkPpi, sizeof (EMU_THUNK_PPI));
SecEmuThunkPpi->PersistentMemorySize = FixedPcdGet32 (PcdPersistentMemorySize);
AddThunkPpi (EFI_PEI_PPI_DESCRIPTOR_PPI, &gEmuThunkPpiGuid, SecEmuThunkPpi);
AddThunkPpi (EFI_PEI_PPI_DESCRIPTOR_PPI, &gEfiPeiReset2PpiGuid, &mEmuReset2Ppi);
//