mirror of https://github.com/acidanthera/audk.git
BaseTools: Update ARM/AArch64 GenFv vector processing for encapsulated FVs
Instead of only handling SEC Core or PEI Core instances in the outer FV, the GenFv tool will now recurse into FV image FFS files to look for instances in encapsulated FVs so the vector area can be updated appropriately. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Eugene Cohen <eugene@hp.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Cohen, Eugene
Ard Biesheuvel
parent
815ada26cb
commit
eca22f362c
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@ -3,6 +3,7 @@ This file contains the internal functions required to generate a Firmware Volume
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Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
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Portions Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
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Portions Copyright (c) 2016 HP Development Company, L.P.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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@ -38,6 +39,9 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#include "PeCoffLib.h"
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#include "WinNtInclude.h"
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#define ARMT_UNCONDITIONAL_JUMP_INSTRUCTION 0xEB000000
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#define ARM64_UNCONDITIONAL_JUMP_INSTRUCTION 0x14000000
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BOOLEAN mArm = FALSE;
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STATIC UINT32 MaxFfsAlignment = 0;
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@ -1803,6 +1807,244 @@ Returns:
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return EFI_SUCCESS;
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}
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EFI_STATUS
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FindCorePeSection(
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IN VOID *FvImageBuffer,
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IN UINT64 FvSize,
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IN EFI_FV_FILETYPE FileType,
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OUT EFI_FILE_SECTION_POINTER *Pe32Section
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)
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/*++
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Routine Description:
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Recursively searches the FV for the FFS file of specified type (typically
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SEC or PEI core) and extracts the PE32 section for further processing.
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Arguments:
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FvImageBuffer Buffer containing FV data
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FvSize Size of the FV
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FileType Type of FFS file to search for
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Pe32Section PE32 section pointer when FFS file is found.
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Returns:
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EFI_SUCCESS Function Completed successfully.
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EFI_ABORTED Error encountered.
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EFI_INVALID_PARAMETER A required parameter was NULL.
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EFI_NOT_FOUND Core file not found.
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--*/
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{
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EFI_STATUS Status;
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EFI_FIRMWARE_VOLUME_HEADER *OrigFvHeader;
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UINT32 OrigFvLength;
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EFI_FFS_FILE_HEADER *CoreFfsFile;
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UINTN FvImageFileCount;
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EFI_FFS_FILE_HEADER *FvImageFile;
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UINTN EncapFvSectionCount;
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EFI_FILE_SECTION_POINTER EncapFvSection;
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EFI_FIRMWARE_VOLUME_HEADER *EncapsulatedFvHeader;
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if (Pe32Section == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// Initialize FV library, saving previous values
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//
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OrigFvHeader = (EFI_FIRMWARE_VOLUME_HEADER *)NULL;
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GetFvHeader (&OrigFvHeader, &OrigFvLength);
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InitializeFvLib(FvImageBuffer, (UINT32)FvSize);
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//
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// First see if we can obtain the file directly in outer FV
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//
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Status = GetFileByType(FileType, 1, &CoreFfsFile);
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if (!EFI_ERROR(Status) && (CoreFfsFile != NULL) ) {
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//
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// Core found, now find PE32 or TE section
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//
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Status = GetSectionByType(CoreFfsFile, EFI_SECTION_PE32, 1, Pe32Section);
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if (EFI_ERROR(Status)) {
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Status = GetSectionByType(CoreFfsFile, EFI_SECTION_TE, 1, Pe32Section);
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}
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if (EFI_ERROR(Status)) {
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Error(NULL, 0, 3000, "Invalid", "could not find a PE32 section in the core file.");
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return EFI_ABORTED;
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}
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//
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// Core PE/TE section, found, return
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//
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Status = EFI_SUCCESS;
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goto EarlyExit;
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}
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//
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// File was not found, look for FV Image file
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//
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// iterate through all FV image files in outer FV
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for (FvImageFileCount = 1;; FvImageFileCount++) {
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Status = GetFileByType(EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE, FvImageFileCount, &FvImageFile);
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if (EFI_ERROR(Status) || (FvImageFile == NULL) ) {
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// exit FV image file loop, no more found
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break;
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}
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// Found an fv image file, look for an FV image section. The PI spec does not
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// preclude multiple FV image sections so we loop accordingly.
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for (EncapFvSectionCount = 1;; EncapFvSectionCount++) {
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// Look for the next FV image section. The section search code will
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// iterate into encapsulation sections. For example, it will iterate
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// into an EFI_SECTION_GUID_DEFINED encapsulation section to find the
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// EFI_SECTION_FIRMWARE_VOLUME_IMAGE sections contained therein.
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Status = GetSectionByType(FvImageFile, EFI_SECTION_FIRMWARE_VOLUME_IMAGE, EncapFvSectionCount, &EncapFvSection);
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if (EFI_ERROR(Status)) {
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// exit section inner loop, no more found
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break;
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}
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EncapsulatedFvHeader = (EFI_FIRMWARE_VOLUME_HEADER *)((UINT8 *)EncapFvSection.FVImageSection + GetSectionHeaderLength(EncapFvSection.FVImageSection));
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// recurse to search the encapsulated FV for this core file type
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Status = FindCorePeSection(EncapsulatedFvHeader, EncapsulatedFvHeader->FvLength, FileType, Pe32Section);
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if (!EFI_ERROR(Status)) {
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// we found the core in the capsulated image, success
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goto EarlyExit;
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}
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} // end encapsulated fv image section loop
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} // end fv image file loop
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// core was not found
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Status = EFI_NOT_FOUND;
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EarlyExit:
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// restore FV lib values
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if(OrigFvHeader != NULL) {
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InitializeFvLib(OrigFvHeader, OrigFvLength);
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}
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return Status;
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}
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EFI_STATUS
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GetCoreMachineType(
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IN EFI_FILE_SECTION_POINTER Pe32Section,
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OUT UINT16 *CoreMachineType
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)
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/*++
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Routine Description:
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Returns the machine type of a P32 image, typically SEC or PEI core.
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Arguments:
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Pe32Section PE32 section data
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CoreMachineType The extracted machine type
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Returns:
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EFI_SUCCESS Function Completed successfully.
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EFI_ABORTED Error encountered.
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EFI_INVALID_PARAMETER A required parameter was NULL.
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--*/
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{
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EFI_STATUS Status;
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UINT32 EntryPoint;
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UINT32 BaseOfCode;
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if (CoreMachineType == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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Status = GetPe32Info(
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(VOID *)((UINTN)Pe32Section.Pe32Section + GetSectionHeaderLength(Pe32Section.CommonHeader)),
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&EntryPoint,
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&BaseOfCode,
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CoreMachineType
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);
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if (EFI_ERROR(Status)) {
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Error(NULL, 0, 3000, "Invalid", "could not get the PE32 machine type for the core.");
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return EFI_ABORTED;
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}
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return EFI_SUCCESS;
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}
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EFI_STATUS
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GetCoreEntryPointAddress(
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IN VOID *FvImageBuffer,
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IN FV_INFO *FvInfo,
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IN EFI_FILE_SECTION_POINTER Pe32Section,
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OUT EFI_PHYSICAL_ADDRESS *CoreEntryAddress
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)
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/*++
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Routine Description:
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Returns the physical address of the core (SEC or PEI) entry point.
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Arguments:
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FvImageBuffer Pointer to buffer containing FV data
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FvInfo Info for the parent FV
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Pe32Section PE32 section data
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CoreEntryAddress The extracted core entry physical address
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Returns:
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EFI_SUCCESS Function Completed successfully.
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EFI_ABORTED Error encountered.
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EFI_INVALID_PARAMETER A required parameter was NULL.
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--*/
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{
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EFI_STATUS Status;
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UINT32 EntryPoint;
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UINT32 BaseOfCode;
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UINT16 MachineType;
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EFI_PHYSICAL_ADDRESS EntryPhysicalAddress;
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if (CoreEntryAddress == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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Status = GetPe32Info(
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(VOID *)((UINTN)Pe32Section.Pe32Section + GetSectionHeaderLength(Pe32Section.CommonHeader)),
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&EntryPoint,
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&BaseOfCode,
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&MachineType
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);
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if (EFI_ERROR(Status)) {
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Error(NULL, 0, 3000, "Invalid", "could not get the PE32 entry point for the core.");
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return EFI_ABORTED;
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}
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//
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// Physical address is FV base + offset of PE32 + offset of the entry point
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//
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EntryPhysicalAddress = FvInfo->BaseAddress;
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EntryPhysicalAddress += (UINTN)Pe32Section.Pe32Section + GetSectionHeaderLength(Pe32Section.CommonHeader) - (UINTN)FvImageBuffer;
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EntryPhysicalAddress += EntryPoint;
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*CoreEntryAddress = EntryPhysicalAddress;
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return EFI_SUCCESS;
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}
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EFI_STATUS
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UpdateArmResetVectorIfNeeded (
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@ -1854,23 +2096,15 @@ Returns:
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--*/
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{
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EFI_FFS_FILE_HEADER *PeiCoreFile;
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EFI_FFS_FILE_HEADER *SecCoreFile;
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EFI_STATUS Status;
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EFI_FILE_SECTION_POINTER Pe32Section;
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UINT32 EntryPoint;
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UINT32 BaseOfCode;
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UINT16 MachineType;
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EFI_PHYSICAL_ADDRESS PeiCorePhysicalAddress;
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EFI_PHYSICAL_ADDRESS SecCorePhysicalAddress;
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INT32 ResetVector[4]; // ARM32:
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// 0 - is branch relative to SEC entry point
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// 1 - PEI Entry Point
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// 2 - movs pc,lr for a SWI handler
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// 3 - Place holder for Common Exception Handler
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// AArch64: Used as UINT64 ResetVector[2]
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// 0 - is branch relative to SEC entry point
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// 1 - PEI Entry Point
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EFI_STATUS Status;
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EFI_FILE_SECTION_POINTER SecPe32;
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EFI_FILE_SECTION_POINTER PeiPe32;
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BOOLEAN UpdateVectorSec = FALSE;
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BOOLEAN UpdateVectorPei = FALSE;
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UINT16 MachineType = 0;
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EFI_PHYSICAL_ADDRESS SecCoreEntryAddress = 0;
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UINT16 PeiMachineType = 0;
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EFI_PHYSICAL_ADDRESS PeiCoreEntryAddress = 0;
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//
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// Verify input parameters
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@ -1878,180 +2112,126 @@ Returns:
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if (FvImage == NULL || FvInfo == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// Initialize FV library
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//
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InitializeFvLib (FvImage->FileImage, FvInfo->Size);
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//
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// Find the Sec Core
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// Locate an SEC Core instance and if found extract the machine type and entry point address
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//
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Status = GetFileByType (EFI_FV_FILETYPE_SECURITY_CORE, 1, &SecCoreFile);
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if (EFI_ERROR (Status) || SecCoreFile == NULL) {
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//
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// Maybe hardware does SEC job and we only have PEI Core?
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//
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Status = FindCorePeSection(FvImage->FileImage, FvInfo->Size, EFI_FV_FILETYPE_SECURITY_CORE, &SecPe32);
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if (!EFI_ERROR(Status)) {
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//
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// Find the PEI Core. It may not exist if SEC loads DXE core directly
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//
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PeiCorePhysicalAddress = 0;
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Status = GetFileByType (EFI_FV_FILETYPE_PEI_CORE, 1, &PeiCoreFile);
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if (!EFI_ERROR (Status) && PeiCoreFile != NULL) {
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//
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// PEI Core found, now find PE32 or TE section
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//
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Status = GetSectionByType (PeiCoreFile, EFI_SECTION_PE32, 1, &Pe32Section);
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if (Status == EFI_NOT_FOUND) {
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Status = GetSectionByType (PeiCoreFile, EFI_SECTION_TE, 1, &Pe32Section);
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}
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if (EFI_ERROR (Status)) {
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Error (NULL, 0, 3000, "Invalid", "could not find either a PE32 or a TE section in PEI core file!");
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return EFI_ABORTED;
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}
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Status = GetPe32Info (
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(VOID *) ((UINTN) Pe32Section.Pe32Section + GetSectionHeaderLength(Pe32Section.CommonHeader)),
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&EntryPoint,
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&BaseOfCode,
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&MachineType
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);
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if (EFI_ERROR (Status)) {
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Error (NULL, 0, 3000, "Invalid", "could not get the PE32 entry point for the PEI core!");
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return EFI_ABORTED;
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}
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//
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// Physical address is FV base + offset of PE32 + offset of the entry point
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//
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PeiCorePhysicalAddress = FvInfo->BaseAddress;
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PeiCorePhysicalAddress += (UINTN) Pe32Section.Pe32Section + GetSectionHeaderLength(Pe32Section.CommonHeader) - (UINTN) FvImage->FileImage;
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PeiCorePhysicalAddress += EntryPoint;
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DebugMsg (NULL, 0, 9, "PeiCore physical entry point address", "Address = 0x%llX", (unsigned long long) PeiCorePhysicalAddress);
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if (MachineType == EFI_IMAGE_MACHINE_ARMT || MachineType == EFI_IMAGE_MACHINE_AARCH64) {
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memset (ResetVector, 0, sizeof (ResetVector));
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// Address of PEI Core, if we have one
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ResetVector[1] = (UINT32)PeiCorePhysicalAddress;
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}
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//
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// Copy to the beginning of the FV
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//
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memcpy ((UINT8 *) ((UINTN) FvImage->FileImage), ResetVector, sizeof (ResetVector));
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}
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return EFI_SUCCESS;
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}
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//
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// Sec Core found, now find PE32 section
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//
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Status = GetSectionByType (SecCoreFile, EFI_SECTION_PE32, 1, &Pe32Section);
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if (Status == EFI_NOT_FOUND) {
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Status = GetSectionByType (SecCoreFile, EFI_SECTION_TE, 1, &Pe32Section);
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}
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if (EFI_ERROR (Status)) {
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Error (NULL, 0, 3000, "Invalid", "could not find a PE32 section in the SEC core file.");
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return EFI_ABORTED;
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}
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Status = GetPe32Info (
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(VOID *) ((UINTN) Pe32Section.Pe32Section + GetSectionHeaderLength(Pe32Section.CommonHeader)),
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&EntryPoint,
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&BaseOfCode,
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&MachineType
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);
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if (EFI_ERROR (Status)) {
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Error (NULL, 0, 3000, "Invalid", "could not get the PE32 entry point for the SEC core.");
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return EFI_ABORTED;
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}
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if ((MachineType != EFI_IMAGE_MACHINE_ARMT) && (MachineType != EFI_IMAGE_MACHINE_AARCH64)) {
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//
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// If SEC is not ARM we have nothing to do
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//
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return EFI_SUCCESS;
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}
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//
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// Physical address is FV base + offset of PE32 + offset of the entry point
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//
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SecCorePhysicalAddress = FvInfo->BaseAddress;
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SecCorePhysicalAddress += (UINTN) Pe32Section.Pe32Section + GetSectionHeaderLength(Pe32Section.CommonHeader) - (UINTN) FvImage->FileImage;
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SecCorePhysicalAddress += EntryPoint;
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DebugMsg (NULL, 0, 9, "SecCore physical entry point address", "Address = 0x%llX", (unsigned long long) SecCorePhysicalAddress);
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//
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// Find the PEI Core. It may not exist if SEC loads DXE core directly
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//
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PeiCorePhysicalAddress = 0;
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Status = GetFileByType (EFI_FV_FILETYPE_PEI_CORE, 1, &PeiCoreFile);
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if (!EFI_ERROR (Status) && PeiCoreFile != NULL) {
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//
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// PEI Core found, now find PE32 or TE section
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//
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Status = GetSectionByType (PeiCoreFile, EFI_SECTION_PE32, 1, &Pe32Section);
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if (Status == EFI_NOT_FOUND) {
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Status = GetSectionByType (PeiCoreFile, EFI_SECTION_TE, 1, &Pe32Section);
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}
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if (EFI_ERROR (Status)) {
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Error (NULL, 0, 3000, "Invalid", "could not find either a PE32 or a TE section in PEI core file!");
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Status = GetCoreMachineType(SecPe32, &MachineType);
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if (EFI_ERROR(Status)) {
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Error(NULL, 0, 3000, "Invalid", "Could not get the PE32 machine type for SEC Core.");
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return EFI_ABORTED;
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}
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Status = GetPe32Info (
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(VOID *) ((UINTN) Pe32Section.Pe32Section + GetSectionHeaderLength(Pe32Section.CommonHeader)),
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&EntryPoint,
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&BaseOfCode,
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&MachineType
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);
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if (EFI_ERROR (Status)) {
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Error (NULL, 0, 3000, "Invalid", "could not get the PE32 entry point for the PEI core!");
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Status = GetCoreEntryPointAddress(FvImage->FileImage, FvInfo, SecPe32, &SecCoreEntryAddress);
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if (EFI_ERROR(Status)) {
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Error(NULL, 0, 3000, "Invalid", "Could not get the PE32 entry point address for SEC Core.");
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return EFI_ABORTED;
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}
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//
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// Physical address is FV base + offset of PE32 + offset of the entry point
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//
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PeiCorePhysicalAddress = FvInfo->BaseAddress;
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PeiCorePhysicalAddress += (UINTN) Pe32Section.Pe32Section + GetSectionHeaderLength(Pe32Section.CommonHeader) - (UINTN) FvImage->FileImage;
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PeiCorePhysicalAddress += EntryPoint;
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DebugMsg (NULL, 0, 9, "PeiCore physical entry point address", "Address = 0x%llX", (unsigned long long) PeiCorePhysicalAddress);
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VerboseMsg("UpdateArmResetVectorIfNeeded found SEC core entry at 0x%llx", (unsigned long long)SecCoreEntryAddress);
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UpdateVectorSec = TRUE;
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}
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//
|
||||
// Locate a PEI Core instance and if found extract the machine type and entry point address
|
||||
//
|
||||
Status = FindCorePeSection(FvImage->FileImage, FvInfo->Size, EFI_FV_FILETYPE_PEI_CORE, &PeiPe32);
|
||||
if (!EFI_ERROR(Status)) {
|
||||
|
||||
Status = GetCoreMachineType(PeiPe32, &PeiMachineType);
|
||||
if (EFI_ERROR(Status)) {
|
||||
Error(NULL, 0, 3000, "Invalid", "Could not get the PE32 machine type for PEI Core.");
|
||||
return EFI_ABORTED;
|
||||
}
|
||||
|
||||
Status = GetCoreEntryPointAddress(FvImage->FileImage, FvInfo, PeiPe32, &PeiCoreEntryAddress);
|
||||
if (EFI_ERROR(Status)) {
|
||||
Error(NULL, 0, 3000, "Invalid", "Could not get the PE32 entry point address for PEI Core.");
|
||||
return EFI_ABORTED;
|
||||
}
|
||||
|
||||
VerboseMsg("UpdateArmResetVectorIfNeeded found PEI core entry at 0x%llx", (unsigned long long)PeiCoreEntryAddress);
|
||||
|
||||
// if we previously found an SEC Core make sure machine types match
|
||||
if (UpdateVectorSec && (MachineType != PeiMachineType)) {
|
||||
Error(NULL, 0, 3000, "Invalid", "SEC and PEI machine types do not match, can't update reset vector");
|
||||
return EFI_ABORTED;
|
||||
}
|
||||
else {
|
||||
MachineType = PeiMachineType;
|
||||
}
|
||||
|
||||
UpdateVectorPei = TRUE;
|
||||
}
|
||||
|
||||
if (!UpdateVectorSec && !UpdateVectorPei) {
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
if (MachineType == EFI_IMAGE_MACHINE_ARMT) {
|
||||
// B SecEntryPoint - signed_immed_24 part +/-32MB offset
|
||||
// on ARM, the PC is always 8 ahead, so we're not really jumping from the base address, but from base address + 8
|
||||
ResetVector[0] = (INT32)(SecCorePhysicalAddress - FvInfo->BaseAddress - 8) >> 2;
|
||||
// ARM: Array of 4 UINT32s:
|
||||
// 0 - is branch relative to SEC entry point
|
||||
// 1 - PEI Entry Point
|
||||
// 2 - movs pc,lr for a SWI handler
|
||||
// 3 - Place holder for Common Exception Handler
|
||||
UINT32 ResetVector[4];
|
||||
|
||||
if (ResetVector[0] > 0x00FFFFFF) {
|
||||
Error (NULL, 0, 3000, "Invalid", "SEC Entry point must be within 32MB of the start of the FV");
|
||||
return EFI_ABORTED;
|
||||
memset(ResetVector, 0, sizeof (ResetVector));
|
||||
|
||||
// if we found an SEC core entry point then generate a branch instruction
|
||||
// to it and populate a debugger SWI entry as well
|
||||
if (UpdateVectorSec) {
|
||||
|
||||
VerboseMsg("UpdateArmResetVectorIfNeeded updating ARM SEC vector");
|
||||
|
||||
// B SecEntryPoint - signed_immed_24 part +/-32MB offset
|
||||
// on ARM, the PC is always 8 ahead, so we're not really jumping from the base address, but from base address + 8
|
||||
ResetVector[0] = (INT32)(SecCoreEntryAddress - FvInfo->BaseAddress - 8) >> 2;
|
||||
|
||||
if (ResetVector[0] > 0x00FFFFFF) {
|
||||
Error(NULL, 0, 3000, "Invalid", "SEC Entry point must be within 32MB of the start of the FV");
|
||||
return EFI_ABORTED;
|
||||
}
|
||||
|
||||
// Add opcode for an uncondional branch with no link. i.e.: " B SecEntryPoint"
|
||||
ResetVector[0] |= ARMT_UNCONDITIONAL_JUMP_INSTRUCTION;
|
||||
|
||||
// SWI handler movs pc,lr. Just in case a debugger uses SWI
|
||||
ResetVector[2] = 0xE1B0F07E;
|
||||
|
||||
// Place holder to support a common interrupt handler from ROM.
|
||||
// Currently not suppprted. For this to be used the reset vector would not be in this FV
|
||||
// and the exception vectors would be hard coded in the ROM and just through this address
|
||||
// to find a common handler in the a module in the FV.
|
||||
ResetVector[3] = 0;
|
||||
}
|
||||
|
||||
// Add opcode for an uncondional branch with no link. AKA B SecEntryPoint
|
||||
ResetVector[0] |= 0xEB000000;
|
||||
|
||||
|
||||
// Address of PEI Core, if we have one
|
||||
ResetVector[1] = (UINT32)PeiCorePhysicalAddress;
|
||||
|
||||
// SWI handler movs pc,lr. Just in case a debugger uses SWI
|
||||
ResetVector[2] = 0xE1B0F07E;
|
||||
|
||||
// Place holder to support a common interrupt handler from ROM.
|
||||
// Currently not suppprted. For this to be used the reset vector would not be in this FV
|
||||
// and the exception vectors would be hard coded in the ROM and just through this address
|
||||
// to find a common handler in the a module in the FV.
|
||||
ResetVector[3] = 0;
|
||||
} else if (MachineType == EFI_IMAGE_MACHINE_AARCH64) {
|
||||
|
||||
/* NOTE:
|
||||
// if a PEI core entry was found place its address in the vector area
|
||||
if (UpdateVectorPei) {
|
||||
|
||||
VerboseMsg("UpdateArmResetVectorIfNeeded updating ARM PEI address");
|
||||
|
||||
// Address of PEI Core, if we have one
|
||||
ResetVector[1] = (UINT32)PeiCoreEntryAddress;
|
||||
}
|
||||
|
||||
//
|
||||
// Copy to the beginning of the FV
|
||||
//
|
||||
memcpy(FvImage->FileImage, ResetVector, sizeof (ResetVector));
|
||||
|
||||
} else if (MachineType == EFI_IMAGE_MACHINE_AARCH64) {
|
||||
// AArch64: Used as UINT64 ResetVector[2]
|
||||
// 0 - is branch relative to SEC entry point
|
||||
// 1 - PEI Entry Point
|
||||
UINT64 ResetVector[2];
|
||||
|
||||
memset(ResetVector, 0, sizeof (ResetVector));
|
||||
|
||||
/* NOTE:
|
||||
ARMT above has an entry in ResetVector[2] for SWI. The way we are using the ResetVector
|
||||
array at the moment, for AArch64, does not allow us space for this as the header only
|
||||
allows for a fixed amount of bytes at the start. If we are sure that UEFI will live
|
||||
|
|
@ -2059,33 +2239,43 @@ Returns:
|
|||
layout as above. But for the moment we replace the four 32bit vectors with two 64bit
|
||||
vectors in the same area of the Image heasder. This allows UEFI to start from a 64bit
|
||||
base.
|
||||
*/
|
||||
*/
|
||||
|
||||
((UINT64*)ResetVector)[0] = (UINT64)(SecCorePhysicalAddress - FvInfo->BaseAddress) >> 2;
|
||||
// if we found an SEC core entry point then generate a branch instruction to it
|
||||
if (UpdateVectorSec) {
|
||||
|
||||
// B SecEntryPoint - signed_immed_26 part +/-128MB offset
|
||||
if ( ((UINT64*)ResetVector)[0] > 0x03FFFFFF) {
|
||||
Error (NULL, 0, 3000, "Invalid", "SEC Entry point must be within 128MB of the start of the FV");
|
||||
return EFI_ABORTED;
|
||||
VerboseMsg("UpdateArmResetVectorIfNeeded updating AArch64 SEC vector");
|
||||
|
||||
ResetVector[0] = (UINT64)(SecCoreEntryAddress - FvInfo->BaseAddress) >> 2;
|
||||
|
||||
// B SecEntryPoint - signed_immed_26 part +/-128MB offset
|
||||
if (ResetVector[0] > 0x03FFFFFF) {
|
||||
Error(NULL, 0, 3000, "Invalid", "SEC Entry point must be within 128MB of the start of the FV");
|
||||
return EFI_ABORTED;
|
||||
}
|
||||
// Add opcode for an uncondional branch with no link. i.e.: " B SecEntryPoint"
|
||||
ResetVector[0] |= ARM64_UNCONDITIONAL_JUMP_INSTRUCTION;
|
||||
}
|
||||
// Add opcode for an uncondional branch with no link. AKA B SecEntryPoint
|
||||
((UINT64*)ResetVector)[0] |= 0x14000000;
|
||||
|
||||
// Address of PEI Core, if we have one
|
||||
((UINT64*)ResetVector)[1] = (UINT64)PeiCorePhysicalAddress;
|
||||
// if a PEI core entry was found place its address in the vector area
|
||||
if (UpdateVectorPei) {
|
||||
|
||||
VerboseMsg("UpdateArmResetVectorIfNeeded updating AArch64 PEI address");
|
||||
|
||||
// Address of PEI Core, if we have one
|
||||
ResetVector[1] = (UINT64)PeiCoreEntryAddress;
|
||||
}
|
||||
|
||||
//
|
||||
// Copy to the beginning of the FV
|
||||
//
|
||||
memcpy(FvImage->FileImage, ResetVector, sizeof (ResetVector));
|
||||
|
||||
} else {
|
||||
Error (NULL, 0, 3000, "Invalid", "Unknown ARM machine type");
|
||||
Error(NULL, 0, 3000, "Invalid", "Unknown machine type");
|
||||
return EFI_ABORTED;
|
||||
}
|
||||
|
||||
//
|
||||
// Copy to the beginning of the FV
|
||||
//
|
||||
memcpy ((UINT8 *) ((UINTN) FvImage->FileImage), ResetVector, sizeof (ResetVector));
|
||||
|
||||
DebugMsg (NULL, 0, 9, "Update Reset vector in FV Header", NULL);
|
||||
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
|
|
@ -3002,6 +3192,8 @@ Returns:
|
|||
EFI_FILE_SECTION_POINTER SubFvSection;
|
||||
EFI_FIRMWARE_VOLUME_HEADER *SubFvImageHeader;
|
||||
EFI_PHYSICAL_ADDRESS SubFvBaseAddress;
|
||||
EFI_FILE_SECTION_POINTER CorePe32;
|
||||
UINT16 MachineType;
|
||||
|
||||
for (Index = 1;; Index++) {
|
||||
//
|
||||
|
|
@ -3012,6 +3204,30 @@ Returns:
|
|||
break;
|
||||
}
|
||||
SubFvImageHeader = (EFI_FIRMWARE_VOLUME_HEADER *) ((UINT8 *) SubFvSection.FVImageSection + GetSectionHeaderLength(SubFvSection.FVImageSection));
|
||||
|
||||
//
|
||||
// See if there's an SEC core in the child FV
|
||||
Status = FindCorePeSection(SubFvImageHeader, SubFvImageHeader->FvLength, EFI_FV_FILETYPE_SECURITY_CORE, &CorePe32);
|
||||
|
||||
// if we couldn't find the SEC core, look for a PEI core
|
||||
if (EFI_ERROR(Status)) {
|
||||
Status = FindCorePeSection(SubFvImageHeader, SubFvImageHeader->FvLength, EFI_FV_FILETYPE_PEI_CORE, &CorePe32);
|
||||
}
|
||||
|
||||
if (!EFI_ERROR(Status)) {
|
||||
Status = GetCoreMachineType(CorePe32, &MachineType);
|
||||
if (EFI_ERROR(Status)) {
|
||||
Error(NULL, 0, 3000, "Invalid", "Could not get the PE32 machine type for SEC/PEI Core.");
|
||||
return EFI_ABORTED;
|
||||
}
|
||||
|
||||
// machine type is ARM, set a flag so ARM reset vector procesing occurs
|
||||
if ((MachineType == EFI_IMAGE_MACHINE_ARMT) || (MachineType == EFI_IMAGE_MACHINE_AARCH64)) {
|
||||
VerboseMsg("Located ARM/AArch64 SEC/PEI core in child FV");
|
||||
mArm = TRUE;
|
||||
}
|
||||
}
|
||||
|
||||
//
|
||||
// Rebase on Flash
|
||||
//
|
||||
|
|
|
|||
Loading…
Reference in New Issue