a2e7559576
Fix various typos in comments and documentation. When "VbeShim.asm" is modified, we have to re-run "VbeShim.sh" to update "VbeShim.h". The string modified by this patch is only used when the DEBUG macro (at the top of the file) is commented out. Since the string is not referenced, NASM eliminates it, resulting in the same byte array content in "VbeShim.h". Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Antoine Coeur <coeur@gmx.fr> Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Philippe Mathieu-Daude <philmd@redhat.com> Message-Id: <20200207010831.9046-58-philmd@redhat.com>
130 lines
3.4 KiB
C
130 lines
3.4 KiB
C
/**@file
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Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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Module Name:
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FvbInfo.c
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Abstract:
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Defines data structure that is the volume header found.These data is intent
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to decouple FVB driver with FV header.
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**/
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//
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// The package level header files this module uses
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//
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#include <Pi/PiFirmwareVolume.h>
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//
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// The protocols, PPI and GUID definitions for this module
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//
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#include <Guid/SystemNvDataGuid.h>
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//
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// The Library classes this module consumes
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//
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#include <Library/BaseLib.h>
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#include <Library/PcdLib.h>
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typedef struct {
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UINT64 FvLength;
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EFI_FIRMWARE_VOLUME_HEADER FvbInfo;
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//
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// EFI_FV_BLOCK_MAP_ENTRY ExtraBlockMap[n];//n=0
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//
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EFI_FV_BLOCK_MAP_ENTRY End[1];
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} EFI_FVB_MEDIA_INFO;
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EFI_FVB_MEDIA_INFO mPlatformFvbMediaInfo[] = {
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//
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// System NvStorage FVB
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//
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{
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FixedPcdGet32 (PcdFlashNvStorageVariableSize) +
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FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
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FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) +
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FixedPcdGet32 (PcdOvmfFlashNvStorageEventLogSize),
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{
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{
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0,
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}, // ZeroVector[16]
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EFI_SYSTEM_NV_DATA_FV_GUID,
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FixedPcdGet32 (PcdFlashNvStorageVariableSize) +
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FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
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FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) +
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FixedPcdGet32 (PcdOvmfFlashNvStorageEventLogSize),
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EFI_FVH_SIGNATURE,
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EFI_FVB2_MEMORY_MAPPED |
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EFI_FVB2_READ_ENABLED_CAP |
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EFI_FVB2_READ_STATUS |
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EFI_FVB2_WRITE_ENABLED_CAP |
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EFI_FVB2_WRITE_STATUS |
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EFI_FVB2_ERASE_POLARITY |
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EFI_FVB2_ALIGNMENT_16,
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sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
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0, // CheckSum
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0, // ExtHeaderOffset
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{
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0,
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}, // Reserved[1]
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2, // Revision
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{
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{
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(FixedPcdGet32 (PcdFlashNvStorageVariableSize) +
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FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
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FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) +
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FixedPcdGet32 (PcdOvmfFlashNvStorageEventLogSize)) /
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FixedPcdGet32 (PcdOvmfFirmwareBlockSize),
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FixedPcdGet32 (PcdOvmfFirmwareBlockSize),
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}
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} // BlockMap[1]
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},
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{
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{
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0,
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0
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}
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} // End[1]
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}
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};
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EFI_STATUS
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GetFvbInfo (
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IN UINT64 FvLength,
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OUT EFI_FIRMWARE_VOLUME_HEADER **FvbInfo
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)
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{
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STATIC BOOLEAN Checksummed = FALSE;
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UINTN Index;
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if (!Checksummed) {
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for (Index = 0;
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Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO);
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Index += 1) {
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UINT16 Checksum;
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mPlatformFvbMediaInfo[Index].FvbInfo.Checksum = 0;
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Checksum = CalculateCheckSum16 (
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(UINT16*) &mPlatformFvbMediaInfo[Index].FvbInfo,
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mPlatformFvbMediaInfo[Index].FvbInfo.HeaderLength
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);
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mPlatformFvbMediaInfo[Index].FvbInfo.Checksum = Checksum;
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}
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Checksummed = TRUE;
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}
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for (Index = 0;
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Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO);
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Index += 1) {
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if (mPlatformFvbMediaInfo[Index].FvLength == FvLength) {
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*FvbInfo = &mPlatformFvbMediaInfo[Index].FvbInfo;
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return EFI_SUCCESS;
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}
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}
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return EFI_NOT_FOUND;
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}
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