mirror of
https://github.com/LongSoft/UEFITool.git
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202 lines
3.6 KiB
Plaintext
202 lines
3.6 KiB
Plaintext
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meta:
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id: intel_acbp_v1
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title: Intel BootGuard Boot Policy v1
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application: Intel x86 firmware
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file-extension: acbp_v1
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tags:
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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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ibb_segment_type:
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0: ibb
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1: non_ibb
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structure_ids:
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0x5f5f504243415f5f: acbp
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0x5f5f534242495f5f: ibbs
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0x5f5f41444d505f5f: pmda
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0x5f5f47534d505f5f: pmsg
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seq:
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- id: structure_id
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type: u8
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enum: structure_ids
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valid: structure_ids::acbp
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- id: version
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type: u1
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valid:
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expr: _ < 0x20
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- id: reserved0
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type: u1
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- id: bpm_revision
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type: u1
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- id: bp_svn
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type: u1
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- id: acm_svn
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type: u1
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- id: reserved1
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type: u1
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- id: nem_data_size
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type: u2
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- id: elements
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type: acbp_element
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repeat: until
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repeat-until: _.header.structure_id == structure_ids::pmsg or _io.eof
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types:
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acbp_element:
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seq:
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- id: header
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type: common_header
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- id: ibbs_body
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type: ibbs_body
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if: header.structure_id == structure_ids::ibbs
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- id: pmda_body
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type: pmda_body
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if: header.structure_id == structure_ids::pmda
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- id: pmsg_body
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type: pmsg_body
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if: header.structure_id == structure_ids::pmsg
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- id: invalid_body
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size: 0
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if: header.structure_id != structure_ids::pmsg
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and header.structure_id != structure_ids::pmda
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and header.structure_id != structure_ids::ibbs
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valid:
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expr: false
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common_header:
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seq:
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- id: structure_id
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type: u8
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enum: structure_ids
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- id: version
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type: u1
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hash:
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seq:
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- id: hash_algorithm_id
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type: u2
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- id: len_hash
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type: u2
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- id: hash
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size: 32
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ibbs_body:
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seq:
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- id: reserved
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type: u1
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repeat: expr
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repeat-expr: 3
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- id: flags
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type: u4
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- id: mch_bar
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type: u8
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- id: vtd_bar
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type: u8
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- id: dma_protection_base0
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type: u4
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- id: dma_protection_limit0
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type: u4
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- id: dma_protection_base1
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type: u8
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- id: dma_protection_limit1
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type: u8
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- id: post_ibb_hash
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type: hash
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- id: ibb_entry_point
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type: u4
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- id: ibb_hash
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type: hash
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- id: num_ibb_segments
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type: u1
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- id: ibb_segments
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type: ibb_segment
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repeat: expr
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repeat-expr: num_ibb_segments
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ibb_segment:
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seq:
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- id: reserved
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type: u2
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- id: flags
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type: u2
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- id: base
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type: u4
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- id: size
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type: u4
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pmda_body:
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seq:
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- id: total_size
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type: u2
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- id: version
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type: u4
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- id: num_entries
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type: u4
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- id: entries_v1
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if: version == 1
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type: pmda_entry_v1
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repeat: expr
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repeat-expr: num_entries
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- id: entries_v2
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if: version == 2
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type: pmda_entry_v2
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repeat: expr
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repeat-expr: num_entries
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pmda_entry_v1:
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seq:
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- id: base
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type: u4
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- id: size
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type: u4
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- id: hash
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size: 32
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pmda_entry_v2:
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seq:
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- id: base
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type: u4
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- id: size
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type: u4
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- id: hash
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type: hash
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pmsg_body:
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seq:
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- id: version
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type: u1
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- id: key_id
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type: u2
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- id: public_key
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type: public_key
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- id: sig_scheme
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type: u2
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- id: signature
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type: signature
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public_key:
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seq:
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- id: version
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type: u1
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- id: size_bits
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type: u2
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- id: exponent
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type: u4
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- id: modulus
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size: size_bits / 8
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signature:
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seq:
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- id: version
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type: u1
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- id: size_bits
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type: u2
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- id: hash_algorithm_id
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type: u2
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- id: signature
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size: size_bits / 8
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