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This FVB module is used to initialize NV variable region and provide SMM FVB protocol to read/write SPI variable region. This module consume HOB gNvVariableInfoGuid and depends on FlashDeviceLib for the actual SPI device operate. During FVB initialization, it will initialize the variable region if the variable region is not valid. And it support to write initial variable data from FFS file if it is found. Signed-off-by: Guo Dong <guo.dong@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Maurice Ma <maurice.ma@intel.com> Cc: Benjamin You <benjamin.you@intel.com> Reviewed-by: Ray Ni <ray.ni@intel.com> Reviewed-by: Benjamin You <benjamin.you@intel.com>
70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/** @file
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The common header file for SMM FVB module.
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Copyright (c) 2014 - 2021, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef SMM_FVB_COMMON_H_
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#define SMM_FVB_COMMON_H_
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#include <Protocol/SmmFirmwareVolumeBlock.h>
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#define EFI_FUNCTION_GET_ATTRIBUTES 1
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#define EFI_FUNCTION_SET_ATTRIBUTES 2
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#define EFI_FUNCTION_GET_PHYSICAL_ADDRESS 3
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#define EFI_FUNCTION_GET_BLOCK_SIZE 4
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#define EFI_FUNCTION_READ 5
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#define EFI_FUNCTION_WRITE 6
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#define EFI_FUNCTION_ERASE_BLOCKS 7
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typedef struct {
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UINTN Function;
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EFI_STATUS ReturnStatus;
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UINT8 Data[1];
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} SMM_FVB_COMMUNICATE_FUNCTION_HEADER;
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///
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/// Size of SMM communicate header, without including the payload.
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///
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#define SMM_COMMUNICATE_HEADER_SIZE (OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data))
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///
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/// Size of SMM FVB communicate function header, without including the payload.
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///
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#define SMM_FVB_COMMUNICATE_HEADER_SIZE (OFFSET_OF (SMM_FVB_COMMUNICATE_FUNCTION_HEADER, Data))
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typedef struct {
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EFI_SMM_FIRMWARE_VOLUME_BLOCK_PROTOCOL *SmmFvb;
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EFI_FVB_ATTRIBUTES_2 Attributes;
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} SMM_FVB_ATTRIBUTES_HEADER;
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typedef struct {
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EFI_SMM_FIRMWARE_VOLUME_BLOCK_PROTOCOL *SmmFvb;
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EFI_PHYSICAL_ADDRESS Address;
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} SMM_FVB_PHYSICAL_ADDRESS_HEADER;
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typedef struct {
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EFI_SMM_FIRMWARE_VOLUME_BLOCK_PROTOCOL *SmmFvb;
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EFI_LBA Lba;
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UINTN BlockSize;
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UINTN NumOfBlocks;
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} SMM_FVB_BLOCK_SIZE_HEADER;
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typedef struct {
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EFI_SMM_FIRMWARE_VOLUME_BLOCK_PROTOCOL *SmmFvb;
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EFI_LBA Lba;
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UINTN Offset;
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UINTN NumBytes;
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} SMM_FVB_READ_WRITE_HEADER;
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typedef struct {
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EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *SmmFvb;
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EFI_LBA StartLba;
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UINTN NumOfLba;
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} SMM_FVB_BLOCKS_HEADER;
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#endif
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