mirror of https://github.com/acidanthera/audk.git
EmulatorPkg/WinHost: Add Reset2 PPI
When shutdown is requested, WinHost exits. Otherwise, WinHost re-runs from SEC. Tested no extra memory consumption with multiple resets in PEI. Signed-off-by: Ray Ni <ray.ni@intel.com> Cc: Andrew Fish <afish@apple.com> Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>
This commit is contained in:
Ni, Ray
mergify[bot]
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a121165e35
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7bee249891
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@ -56,6 +56,14 @@ NT_FD_INFO *gFdInfo;
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UINTN gSystemMemoryCount = 0;
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NT_SYSTEM_MEMORY *gSystemMemory;
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BASE_LIBRARY_JUMP_BUFFER mResetJumpBuffer;
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CHAR8 *mResetTypeStr[] = {
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"EfiResetCold",
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"EfiResetWarm",
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"EfiResetShutdown",
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"EfiResetPlatformSpecific"
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};
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/*++
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Routine Description:
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@ -196,6 +204,45 @@ SecPrint (
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);
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}
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/**
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Resets the entire platform.
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@param[in] ResetType The type of reset to perform.
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@param[in] ResetStatus The status code for the reset.
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@param[in] DataSize The size, in bytes, of ResetData.
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@param[in] ResetData For a ResetType of EfiResetCold, EfiResetWarm, or EfiResetShutdown
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the data buffer starts with a Null-terminated string, optionally
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followed by additional binary data. The string is a description
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that the caller may use to further indicate the reason for the
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system reset.
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**/
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VOID
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EFIAPI
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WinReset (
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IN EFI_RESET_TYPE ResetType,
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IN EFI_STATUS ResetStatus,
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IN UINTN DataSize,
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IN VOID *ResetData OPTIONAL
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)
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{
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ASSERT (ResetType <= EfiResetPlatformSpecific);
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SecPrint (" Emu ResetSystem is called: ResetType = %s\n", mResetTypeStr[ResetType]);
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if (ResetType == EfiResetShutdown) {
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exit (0);
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} else {
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//
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// Jump back to SetJump with jump code = ResetType + 1
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//
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LongJump (&mResetJumpBuffer, ResetType + 1);
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}
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}
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EFI_PEI_RESET2_PPI mEmuReset2Ppi = {
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WinReset
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};
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/*++
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Routine Description:
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@ -388,6 +435,7 @@ Returns:
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UINTN ProcessAffinityMask;
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UINTN SystemAffinityMask;
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INT32 LowBit;
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UINTN ResetJumpCode;
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//
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// Enable the privilege so that RTC driver can successfully run SetTime()
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@ -430,6 +478,7 @@ Returns:
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// PPIs pased into PEI_CORE
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//
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AddThunkPpi (EFI_PEI_PPI_DESCRIPTOR_PPI, &gEmuThunkPpiGuid, &mSecEmuThunkPpi);
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AddThunkPpi (EFI_PEI_PPI_DESCRIPTOR_PPI, &gEfiPeiReset2PpiGuid, &mEmuReset2Ppi);
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//
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// Emulator Bus Driver Thunks
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@ -500,14 +549,6 @@ Returns:
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exit (1);
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}
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SetMem32 (TemporaryRam, TemporaryRamSize, PcdGet32 (PcdInitValueInTempStack));
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SecPrint (
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" OS Emulator passing in %u KB of temp RAM at 0x%08lx to SEC\n\r",
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TemporaryRamSize / SIZE_1KB,
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TemporaryRam
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);
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//
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// If enabled use the magic page to communicate between modules
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// This replaces the PI PeiServicesTable pointer mechanism that
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@ -591,6 +632,24 @@ Returns:
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SecPrint ("\n\r");
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}
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ResetJumpCode = SetJump (&mResetJumpBuffer);
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//
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// Do not clear memory content for warm reset.
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//
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if (ResetJumpCode != EfiResetWarm + 1) {
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SecPrint (" OS Emulator clearing temp RAM and physical RAM (to be discovered later)......\n\r");
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SetMem32 (TemporaryRam, TemporaryRamSize, PcdGet32 (PcdInitValueInTempStack));
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for (Index = 0; Index < gSystemMemoryCount; Index++) {
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SetMem32 ((VOID *)(UINTN)gSystemMemory[Index].Memory, (UINTN)gSystemMemory[Index].Size, PcdGet32 (PcdInitValueInTempStack));
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}
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}
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SecPrint (
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" OS Emulator passing in %u KB of temp RAM at 0x%08lx to SEC\n\r",
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TemporaryRamSize / SIZE_1KB,
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TemporaryRam
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);
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//
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// Hand off to SEC Core
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//
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@ -1,6 +1,6 @@
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/**@file
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2006 - 2022, Intel Corporation. All rights reserved.<BR>
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(C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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@ -26,6 +26,7 @@ Abstract:
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#include <Guid/FileSystemInfo.h>
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#include <Guid/FileSystemVolumeLabelInfo.h>
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#include <Ppi/EmuThunk.h>
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#include <Ppi/Reset2.h>
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#include <Protocol/EmuThunk.h>
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#include <Protocol/SimpleFileSystem.h>
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@ -2,7 +2,7 @@
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# Entry Point of Win Emulator
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#
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# Main executable file of Win Emulator that loads Sec core after initialization finished.
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# Copyright (c) 2008 - 2019, Intel Corporation. All rights reserved.<BR>
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# Copyright (c) 2008 - 2022, Intel Corporation. All rights reserved.<BR>
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# Portions copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR>
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# (C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
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#
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@ -58,6 +58,7 @@
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[Ppis]
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gEmuThunkPpiGuid
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gEfiPeiReset2PpiGuid
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[Protocols]
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gEmuIoThunkProtocolGuid
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