mirror of https://github.com/acidanthera/audk.git
110 lines
3.8 KiB
C
110 lines
3.8 KiB
C
/** @file
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Defines data structure that is the volume header found at the beginning of
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all firmware volumes that are either memory mapped, or have an
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associated FirmwareVolumeBlock protocol.
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Copyright (c) 2006, Intel Corporation
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All rights reserved. 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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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name: FirmwareVolumeHeader.h
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@par Revision Reference:
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These definitions are from Firmware Volume Block Spec 0.9.
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**/
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#ifndef __EFI_FIRMWARE_VOLUME_HEADER_H__
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#define __EFI_FIRMWARE_VOLUME_HEADER_H__
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//
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// Firmware Volume Block Attributes definition
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//
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typedef UINT32 EFI_FVB_ATTRIBUTES;
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//
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// Firmware Volume Block Attributes bit definitions
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//
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#define EFI_FVB_READ_DISABLED_CAP 0x00000001
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#define EFI_FVB_READ_ENABLED_CAP 0x00000002
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#define EFI_FVB_READ_STATUS 0x00000004
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#define EFI_FVB_WRITE_DISABLED_CAP 0x00000008
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#define EFI_FVB_WRITE_ENABLED_CAP 0x00000010
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#define EFI_FVB_WRITE_STATUS 0x00000020
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#define EFI_FVB_LOCK_CAP 0x00000040
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#define EFI_FVB_LOCK_STATUS 0x00000080
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#define EFI_FVB_STICKY_WRITE 0x00000200
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#define EFI_FVB_MEMORY_MAPPED 0x00000400
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#define EFI_FVB_ERASE_POLARITY 0x00000800
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#define EFI_FVB_ALIGNMENT_CAP 0x00008000
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#define EFI_FVB_ALIGNMENT_2 0x00010000
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#define EFI_FVB_ALIGNMENT_4 0x00020000
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#define EFI_FVB_ALIGNMENT_8 0x00040000
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#define EFI_FVB_ALIGNMENT_16 0x00080000
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#define EFI_FVB_ALIGNMENT_32 0x00100000
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#define EFI_FVB_ALIGNMENT_64 0x00200000
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#define EFI_FVB_ALIGNMENT_128 0x00400000
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#define EFI_FVB_ALIGNMENT_256 0x00800000
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#define EFI_FVB_ALIGNMENT_512 0x01000000
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#define EFI_FVB_ALIGNMENT_1K 0x02000000
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#define EFI_FVB_ALIGNMENT_2K 0x04000000
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#define EFI_FVB_ALIGNMENT_4K 0x08000000
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#define EFI_FVB_ALIGNMENT_8K 0x10000000
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#define EFI_FVB_ALIGNMENT_16K 0x20000000
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#define EFI_FVB_ALIGNMENT_32K 0x40000000
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#define EFI_FVB_ALIGNMENT_64K 0x80000000
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#define EFI_FVB_CAPABILITIES (EFI_FVB_READ_DISABLED_CAP | \
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EFI_FVB_READ_ENABLED_CAP | \
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EFI_FVB_WRITE_DISABLED_CAP | \
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EFI_FVB_WRITE_ENABLED_CAP | \
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EFI_FVB_LOCK_CAP \
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)
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#define EFI_FVB_STATUS (EFI_FVB_READ_STATUS | EFI_FVB_WRITE_STATUS | EFI_FVB_LOCK_STATUS)
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///
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/// Firmware Volume Header Revision definition
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///
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#define EFI_FVH_REVISION 0x01
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///
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/// Firmware Volume Header Signature definition
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///
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#define EFI_FVH_SIGNATURE EFI_SIGNATURE_32 ('_', 'F', 'V', 'H')
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///
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/// Firmware Volume Header Block Map Entry definition
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///
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typedef struct {
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UINT32 NumBlocks;
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UINT32 BlockLength;
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} EFI_FV_BLOCK_MAP_ENTRY;
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///
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/// Firmware Volume Header definition
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///
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typedef struct {
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UINT8 ZeroVector[16];
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EFI_GUID FileSystemGuid;
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UINT64 FvLength;
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UINT32 Signature;
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EFI_FVB_ATTRIBUTES Attributes;
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UINT16 HeaderLength;
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UINT16 Checksum;
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UINT8 Reserved[3];
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UINT8 Revision;
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EFI_FV_BLOCK_MAP_ENTRY FvBlockMap[1];
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} EFI_FIRMWARE_VOLUME_HEADER;
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#endif
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