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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
Download Patch File Download Diff File Expand all files Collapse all files

13
EmulatorPkg/Unix/Host/Host.c
View File

@@ -1,6 +1,6 @@
/*++ @file
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2022, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -102,6 +102,7 @@ main (
CHAR16 *FirmwareVolumesStr;
UINTN *StackPointer;
FILE *GdbTempFile;
EMU_THUNK_PPI *SecEmuThunkPpi;
//
// Xcode does not support sourcing gdb scripts directly, so the Xcode XML
@@ -137,7 +138,15 @@ main (
//
// PPIs pased into PEI_CORE
//
AddThunkPpi (EFI_PEI_PPI_DESCRIPTOR_PPI, &gEmuThunkPpiGuid, &mSecEmuThunkPpi);
SecEmuThunkPpi = AllocateZeroPool (sizeof (EMU_THUNK_PPI) + FixedPcdGet32 (PcdPersistentMemorySize));
if (SecEmuThunkPpi == NULL) {
printf ("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);
SecInitThunkProtocol ();

3
EmulatorPkg/Unix/Host/Host.inf
View File

@@ -2,7 +2,7 @@
# Entry Point of Emu Emulator
#
# Main executable file of Unix Emulator that loads PEI core after initialization finished.
# Copyright (c) 2008 - 2019, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2008 - 2022, Intel Corporation. All rights reserved.<BR>
# Portions copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -106,6 +106,7 @@
gEmulatorPkgTokenSpaceGuid.PcdEmuFlashNvStorageFtwSpareBase
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize
gEmulatorPkgTokenSpaceGuid.PcdPeiServicesTablePage
gEmulatorPkgTokenSpaceGuid.PcdPersistentMemorySize
[FeaturePcd]
gEmulatorPkgTokenSpaceGuid.PcdEmulatorLazyLoadSymbols