mirror of
https://github.com/LongSoft/UEFITool.git
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95 lines
1.8 KiB
Plaintext
95 lines
1.8 KiB
Plaintext
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meta:
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id: intel_acm
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title: Intel Authenticated Code Module
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application: Intel x86 firmware
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file-extension: acm
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tags:
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- executable
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- firmware
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license: CC0-1.0
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ks-version: 0.9
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endian: le
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enums:
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module_subtype:
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0: txt
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1: startup
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3: boot_guard
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known_header_version:
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0x00000000: v0_0
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0x00030000: v3_0
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seq:
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- id: header
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type: header
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- id: body
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size: 4 * (header.module_size - header.header_size - header.scratch_space_size)
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types:
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header:
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seq:
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- id: module_type
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type: u2
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valid: 0x0002
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- id: module_subtype
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type: u2
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enum: module_subtype
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- id: header_size
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type: u4
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doc: counted in 4 byte increments
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- id: header_version
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type: u4
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- id: chipset_id
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type: u2
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- id: flags
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type: u2
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- id: module_vendor
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type: u4
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valid: 0x8086
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- id: date_day
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type: u1
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doc: BCD
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- id: date_month
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type: u1
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doc: BCD
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- id: date_year
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type: u2
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doc: BCD
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- id: module_size
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type: u4
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doc: counted in 4 byte increments
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- id: acm_svn
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type: u2
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- id: se_svn
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type: u2
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- id: code_control_flags
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type: u4
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- id: error_entry_point
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type: u4
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- id: gdt_max
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type: u4
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- id: gdt_base
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type: u4
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- id: segment_sel
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type: u4
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- id: entry_point
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type: u4
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- id: reserved
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size: 64
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- id: key_size
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type: u4
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doc: counted in 4 byte increments
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- id: scratch_space_size
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type: u4
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doc: counted in 4 byte increments
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- id: rsa_public_key
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size: (4 * key_size)
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- id: rsa_exponent
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type: u4
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if: header_version == 0
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- id: rsa_signature
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size: (4 * key_size)
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- id: scratch_space
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size: (4 * scratch_space_size)
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