From bb89ec1a7ec2f8d35033df9e47b3604925da3bd3 Mon Sep 17 00:00:00 2001 From: jljusten Date: Tue, 28 Jun 2011 16:47:23 +0000 Subject: InOsEmuPkg: Rename package to EmulatorPkg & Sec to Host * Rename InOsEmuPkg to EmulatorPkg * Rename Unix/Sec to Unix/Host Signed-off-by: jljusten Reviewed-by: andrewfish Reviewed-by: geekboy15a git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11918 6f19259b-4bc3-4df7-8a09-765794883524 --- EmulatorPkg/Sec/Ia32/SwitchRam.S | 95 +++++++++++++++++++++++++ EmulatorPkg/Sec/Ia32/TempRam.c | 65 +++++++++++++++++ EmulatorPkg/Sec/Sec.c | 149 +++++++++++++++++++++++++++++++++++++++ EmulatorPkg/Sec/Sec.h | 51 ++++++++++++++ EmulatorPkg/Sec/Sec.inf | 50 +++++++++++++ EmulatorPkg/Sec/X64/SwitchRam.S | 72 +++++++++++++++++++ 6 files changed, 482 insertions(+) create mode 100644 EmulatorPkg/Sec/Ia32/SwitchRam.S create mode 100644 EmulatorPkg/Sec/Ia32/TempRam.c create mode 100644 EmulatorPkg/Sec/Sec.c create mode 100644 EmulatorPkg/Sec/Sec.h create mode 100644 EmulatorPkg/Sec/Sec.inf create mode 100644 EmulatorPkg/Sec/X64/SwitchRam.S (limited to 'EmulatorPkg/Sec') diff --git a/EmulatorPkg/Sec/Ia32/SwitchRam.S b/EmulatorPkg/Sec/Ia32/SwitchRam.S new file mode 100644 index 0000000000..81e478be82 --- /dev/null +++ b/EmulatorPkg/Sec/Ia32/SwitchRam.S @@ -0,0 +1,95 @@ +#------------------------------------------------------------------------------ +# +# Copyright (c) 2007, Intel Corporation. All rights reserved.
+# This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http:#opensource.org/licenses/bsd-license.php +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# Module Name: +# +# Stack.asm +# +# Abstract: +# +# Switch the stack from temporary memory to permenent memory. +# +#------------------------------------------------------------------------------ + + .text + + +//------------------------------------------------------------------------------ +// VOID +// EFIAPI +// SecSwitchStack ( +// UINT32 TemporaryMemoryBase, +// UINT32 PermenentMemoryBase +// )// +//------------------------------------------------------------------------------ +ASM_GLOBAL ASM_PFX(SecSwitchStack) +ASM_PFX(SecSwitchStack): +# +# Save three register: eax, ebx, ecx +# + push %eax + push %ebx + push %ecx + push %edx + +# +# !!CAUTION!! this function address's is pushed into stack after +# migration of whole temporary memory, so need save it to permenent +# memory at first! +# + + movl 20(%esp), %ebx # Save the first parameter + movl 24(%esp), %ecx # Save the second parameter + +# +# Save this function's return address into permenent memory at first. +# Then, Fixup the esp point to permenent memory +# + + movl %esp, %eax + subl %ebx, %eax + addl %ecx, %eax + movl (%esp), %edx # copy pushed register's value to permenent memory + movl %edx, (%eax) + movl 4(%esp), %edx + movl %edx, 4(%eax) + movl 8(%esp), %edx + movl %edx, 8(%eax) + movl 12(%esp), %edx + movl %edx, 12(%eax) + movl 16(%esp), %edx + movl %edx, 16(%eax) + movl %eax, %esp # From now, esp is pointed to permenent memory + +# +# Fixup the ebp point to permenent memory +# +#ifndef __APPLE__ + movl %ebp, %eax + subl %ebx, %eax + addl %ecx, %eax + movl %eax, %ebp # From now, ebp is pointed to permenent memory + +# +# Fixup callee's ebp point for PeiDispatch +# + movl (%ebp), %eax + subl %ebx, %eax + addl %ecx, %eax + movl %eax, (%ebp) # From now, Temporary's PPI caller's stack is in permenent memory +#endif + + pop %edx + pop %ecx + pop %ebx + pop %eax + ret + diff --git a/EmulatorPkg/Sec/Ia32/TempRam.c b/EmulatorPkg/Sec/Ia32/TempRam.c new file mode 100644 index 0000000000..525fb95d48 --- /dev/null +++ b/EmulatorPkg/Sec/Ia32/TempRam.c @@ -0,0 +1,65 @@ +/*++ @file + Temp RAM PPI + +Copyright (c) 2011, Apple Inc. All rights reserved.
+This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#include +#include +#include + +#include + +VOID +EFIAPI +SecSwitchStack ( + UINT32 TemporaryMemoryBase, + UINT32 PermenentMemoryBase + ); + + +EFI_STATUS +EFIAPI +SecTemporaryRamSupport ( + IN CONST EFI_PEI_SERVICES **PeiServices, + IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase, + IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase, + IN UINTN CopySize + ) +{ + // + // Migrate the whole temporary memory to permenent memory. + // + CopyMem ( + (VOID*)(UINTN)PermanentMemoryBase, + (VOID*)(UINTN)TemporaryMemoryBase, + CopySize + ); + + // + // SecSwitchStack function must be invoked after the memory migration + // immediatly, also we need fixup the stack change caused by new call into + // permenent memory. + // + SecSwitchStack ((UINT32) TemporaryMemoryBase, (UINT32) PermanentMemoryBase); + + // + // We need *not* fix the return address because currently, + // The PeiCore is excuted in flash. + // + + // + // Simulate to invalid temporary memory, terminate temporary memory + // + //ZeroMem ((VOID*)(UINTN)TemporaryMemoryBase, CopySize); + + return EFI_SUCCESS; +} diff --git a/EmulatorPkg/Sec/Sec.c b/EmulatorPkg/Sec/Sec.c new file mode 100644 index 0000000000..4468d6f07b --- /dev/null +++ b/EmulatorPkg/Sec/Sec.c @@ -0,0 +1,149 @@ +/*++ @file + Stub SEC that is called from the OS appliation that is the root of the emulator. + + The OS application will call the SEC with the PEI Entry Point API. + +Copyright (c) 2011, Apple Inc. All rights reserved.
+This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#include "Sec.h" + + + +EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI mSecTemporaryRamSupportPpi = { + SecTemporaryRamSupport +}; + + +EFI_PEI_PPI_DESCRIPTOR gPrivateDispatchTable[] = { + { + EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST, + &gEfiTemporaryRamSupportPpiGuid, + &mSecTemporaryRamSupportPpi + } +}; + + + +/** + The entry point of PE/COFF Image for the PEI Core, that has been hijacked by this + SEC that sits on top of an OS application. So the entry and exit of this module + has the same API. + + This function is the entry point for the PEI Foundation, which allows the SEC phase + to pass information about the stack, temporary RAM and the Boot Firmware Volume. + In addition, it also allows the SEC phase to pass services and data forward for use + during the PEI phase in the form of one or more PPIs. + There is no limit to the number of additional PPIs that can be passed from SEC into + the PEI Foundation. As part of its initialization phase, the PEI Foundation will add + these SEC-hosted PPIs to its PPI database such that both the PEI Foundation and any + modules can leverage the associated service calls and/or code in these early PPIs. + This function is required to call ProcessModuleEntryPointList() with the Context + parameter set to NULL. ProcessModuleEntryPoint() is never expected to return. + The PEI Core is responsible for calling ProcessLibraryConstructorList() as soon as + the PEI Services Table and the file handle for the PEI Core itself have been established. + If ProcessModuleEntryPointList() returns, then ASSERT() and halt the system. + + @param SecCoreData Points to a data structure containing information about the PEI + core's operating environment, such as the size and location of + temporary RAM, the stack location and the BFV location. + + @param PpiList Points to a list of one or more PPI descriptors to be installed + initially by the PEI core. An empty PPI list consists of a single + descriptor with the end-tag EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST. + As part of its initialization phase, the PEI Foundation will add + these SEC-hosted PPIs to its PPI database such that both the PEI + Foundation and any modules can leverage the associated service calls + and/or code in these early PPIs. + +**/ +VOID +EFIAPI +_ModuleEntryPoint ( + IN EFI_SEC_PEI_HAND_OFF *SecCoreData, + IN EFI_PEI_PPI_DESCRIPTOR *PpiList + ) +{ + EFI_STATUS Status; + EFI_PEI_FV_HANDLE VolumeHandle; + EFI_PEI_FILE_HANDLE FileHandle; + VOID *PeCoffImage; + EFI_PEI_CORE_ENTRY_POINT EntryPoint; + EFI_PEI_PPI_DESCRIPTOR *Ppi; + EFI_PEI_PPI_DESCRIPTOR *SecPpiList; + UINTN SecReseveredMemorySize; + UINTN Index; + + EMU_MAGIC_PAGE()->PpiList = PpiList; + ProcessLibraryConstructorList (); + + DEBUG ((EFI_D_ERROR, "SEC Has Started\n")); + + // + // Add Our PPIs to the list + // + SecReseveredMemorySize = sizeof (gPrivateDispatchTable); + for (Ppi = PpiList, Index = 1; ; Ppi++, Index++) { + SecReseveredMemorySize += sizeof (EFI_PEI_PPI_DESCRIPTOR); + + if ((Ppi->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) == EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) { + // Since we are appending, need to clear out privious list terminator. + Ppi->Flags &= ~EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST; + break; + } + } + + // Keep everything on a good alignment + SecReseveredMemorySize = ALIGN_VALUE (SecReseveredMemorySize, CPU_STACK_ALIGNMENT); + +#if 0 + // Tell the PEI Core to not use our buffer in temp RAM + SecPpiList = (EFI_PEI_PPI_DESCRIPTOR *)SecCoreData->PeiTemporaryRamBase; + SecCoreData->PeiTemporaryRamBase = (VOID *)((UINTN)SecCoreData->PeiTemporaryRamBase + SecReseveredMemorySize); + SecCoreData->PeiTemporaryRamSize -= SecReseveredMemorySize; +#else + { + // + // When I subtrack from SecCoreData->PeiTemporaryRamBase PEI Core crashes? Either there is a bug + // or I don't understand temp RAM correctly? + // + EFI_PEI_PPI_DESCRIPTOR PpiArray[10]; + + SecPpiList = &PpiArray[0]; + ASSERT (sizeof (PpiArray) >= SecReseveredMemorySize); + } +#endif + // Copy existing list, and append our entries. + CopyMem (SecPpiList, PpiList, sizeof (EFI_PEI_PPI_DESCRIPTOR) * Index); + CopyMem (&SecPpiList[Index], gPrivateDispatchTable, sizeof (gPrivateDispatchTable)); + + // Find PEI Core and transfer control + VolumeHandle = (EFI_PEI_FV_HANDLE)(UINTN)SecCoreData->BootFirmwareVolumeBase; + FileHandle = NULL; + Status = PeiServicesFfsFindNextFile (EFI_FV_FILETYPE_PEI_CORE, VolumeHandle, &FileHandle); + ASSERT_EFI_ERROR (Status); + + Status = PeiServicesFfsFindSectionData (EFI_SECTION_PE32, FileHandle, &PeCoffImage); + ASSERT_EFI_ERROR (Status); + + Status = PeCoffLoaderGetEntryPoint (PeCoffImage, (VOID **)&EntryPoint); + ASSERT_EFI_ERROR (Status); + + // Transfer control to PEI Core + EntryPoint (SecCoreData, SecPpiList); + + // PEI Core never returns + ASSERT (FALSE); + return; +} + + + diff --git a/EmulatorPkg/Sec/Sec.h b/EmulatorPkg/Sec/Sec.h new file mode 100644 index 0000000000..00760121b2 --- /dev/null +++ b/EmulatorPkg/Sec/Sec.h @@ -0,0 +1,51 @@ +/*++ @file + Stub SEC that is called from the OS appliation that is the root of the emulator. + + The OS application will call the SEC with the PEI Entry Point API. + +Copyright (c) 2011, Apple Inc. All rights reserved.
+This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#ifndef __SEC_H___ +#define __SEC_H___ + + +#include +#include +#include +#include +#include +#include + +#include + + +// +// I think this shold be defined in a MdePkg include file? +// +VOID +EFIAPI +ProcessLibraryConstructorList ( + VOID + ); + +EFI_STATUS +EFIAPI +SecTemporaryRamSupport ( + IN CONST EFI_PEI_SERVICES **PeiServices, + IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase, + IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase, + IN UINTN CopySize + ); + + +#endif + diff --git a/EmulatorPkg/Sec/Sec.inf b/EmulatorPkg/Sec/Sec.inf new file mode 100644 index 0000000000..b17caea0b5 --- /dev/null +++ b/EmulatorPkg/Sec/Sec.inf @@ -0,0 +1,50 @@ +## @file +# Entry Point of Emu Emulator +# +# Main executable file of Unix Emulator that loads PEI core after initialization finished. +# Portions copyright (c) 2011, Apple Inc. All rights reserved.
+# +# This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# +## + +[Defines] + INF_VERSION = 0x00010005 + BASE_NAME = EmuSec + FILE_GUID = BCAF98C9-22B0-3B4F-9CBD-C8A6B4DBCEE9 + MODULE_TYPE = SEC + VERSION_STRING = 1.0 + + +[Sources] + Sec.c + +[Sources.X64] + X64/SwitchRam.S + +[Sources.IA32] + Ia32/TempRam.c + Ia32/SwitchRam.S + +[Packages] + MdePkg/MdePkg.dec + EmulatorPkg/EmulatorPkg.dec + +[LibraryClasses] + DebugLib + PeCoffGetEntryPointLib + PeiServicesLib + PpiListLib + BaseMemoryLib + +[Ppis] + gEfiTemporaryRamSupportPpiGuid + +[Pcd] + gEmulatorPkgTokenSpaceGuid.PcdPeiServicesTablePage diff --git a/EmulatorPkg/Sec/X64/SwitchRam.S b/EmulatorPkg/Sec/X64/SwitchRam.S new file mode 100644 index 0000000000..a7219bf21f --- /dev/null +++ b/EmulatorPkg/Sec/X64/SwitchRam.S @@ -0,0 +1,72 @@ +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.
+# Portitions copyright (c) 2011, Apple Inc. All rights reserved. +# This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php. +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +#------------------------------------------------------------------------------ + + + +// EFI_STATUS +// EFIAPI +// SecTemporaryRamSupport ( +// IN CONST EFI_PEI_SERVICES **PeiServices, // %rcx +// IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase, // %rdx +// IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase, // %r8 +// IN UINTN CopySize // %r9 +// ) +// +ASM_GLOBAL ASM_PFX(SecTemporaryRamSupport) +ASM_PFX(SecTemporaryRamSupport): + // Adjust callers %rbp to account for stack move + subq %rdx, %rbp // Calc offset of %rbp in Temp Memory + addq %r8, %rbp // add in permanent base to offset + + pushq %rbp // stack frame is for the debugger + movq %rsp, %rbp + + pushq %rdx // Save TemporaryMemoryBase + pushq %r8 // Save PermanentMemoryBase + pushq %r9 // Save CopySize + + // + // Copy all of temp RAM to permanent memory, including stack + // + // CopyMem (PermanentMemoryBase, TemporaryMemoryBase, CopySize); + // %rcx, %rdx, %r8 + movq %r8, %rcx // Shift arguments + movq %r9, %r8 + subq $0x28, %rsp // Allocate register spill area & 16-byte align stack + call ASM_PFX(CopyMem) + // Temp mem stack now copied to permanent location. %esp still in temp memory + addq $0x28, %rsp + + popq %r9 // CopySize (old stack) + popq %r8 // PermanentMemoryBase (old stack) + popq %rdx // TemporaryMemoryBase (old stack) + + movq %rsp, %rcx // Move to new stack + subq %rdx, %rcx // Calc offset of stack in Temp Memory + addq %r8, %rcx // Calc PermanentMemoryBase address + movq %rcx, %rsp // Update stack + // Stack now points to permanent memory + + // ZeroMem (TemporaryMemoryBase /* rcx */, CopySize /* rdx */); + movq %rdx, %rcx + movq %r9, %rdx + subq $0x28, %rsp // Allocate register spill area & 16-byte align stack + call ASM_PFX(ZeroMem) + addq $0x28, %rsp + + // This data comes off the NEW stack + popq %rbp + ret + + -- cgit v1.2.3