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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

3
EmulatorPkg/EmulatorPkg.dec

@ -2,7 +2,7 @@
#
# This is the Emu Emulation Environment Platform
#
# Copyright (c) 2008 - 2019, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2008 - 2022, Intel Corporation. All rights reserved.<BR>
# Portions copyright (c) 2011, Apple Inc. All rights reserved.
# (C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
#
@ -86,6 +86,7 @@
# The user ID and password are fixed as below.
gEmulatorPkgTokenSpaceGuid.PcdRedfishServieUserId|"admin"|VOID*|0x00001022
gEmulatorPkgTokenSpaceGuid.PcdRedfishServiePassword|"pwd123456"|VOID*|0x00001023
gEmulatorPkgTokenSpaceGuid.PcdPersistentMemorySize|0x4000000|UINT32|0x00001024
[PcdsFixedAtBuild, PcdsPatchableInModule]
gEmulatorPkgTokenSpaceGuid.PcdEmuBootMode|1|UINT32|0x00001006

4
EmulatorPkg/Include/Ppi/EmuThunk.h

@ -2,7 +2,7 @@
Emulator Thunk to abstract OS services from pure EFI code
Copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR>
Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@ -107,6 +107,8 @@ typedef struct {
EMU_PEI_AUTOSCAN MemoryAutoScan;
EMU_PEI_FD_INFORMATION FirmwareDevices;
EMU_PEI_THUNK_INTERFACE Thunk;
UINTN PersistentMemorySize;
UINT8 PersistentMemory[0];
} EMU_THUNK_PPI;
extern EFI_GUID gEmuThunkPpiGuid;

13
EmulatorPkg/Unix/Host/Host.c

@ -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

@ -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

11
EmulatorPkg/Win/Host/WinHost.c

@ -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);
//

2
EmulatorPkg/Win/Host/WinHost.inf

@ -74,7 +74,7 @@
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdInitValueInTempStack
gEmulatorPkgTokenSpaceGuid.PcdPersistentMemorySize
gEmulatorPkgTokenSpaceGuid.PcdEmuBootMode
gEmulatorPkgTokenSpaceGuid.PcdEmuFirmwareVolume
gEmulatorPkgTokenSpaceGuid.PcdEmuMemorySize