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102 lines
4.4 KiB
Plaintext
102 lines
4.4 KiB
Plaintext
#
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# Copyright (c) 2020 Bitdefender
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# SPDX-License-Identifier: Apache-2.0
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#
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# Valid operating modes for instructions. Please use these templates and not inline definitions. If a template does
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# not exist already, create a new one.
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# Syntax: NAME : group1:mode11[+mode12[|group2:!mode21+!mode22]] etc.
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#
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# NAME cam be anything and can be used as a placeholder when defining the instruction.
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# group - can be one of the 4 operating groups:
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# ring - specify the needed privilege level for the instruction
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# mode - specify the needed operating mode
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# vmx - specify the VMX operation mode
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# other- specify other misc operating modes/special cases
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#
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# ring - can be any of:
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# r0 - instruction is valid in ring 0
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# r1 - instruction is valid in ring 1
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# r2 - instruction is valid in ring 2
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# r3 - instruction is valid in ring 3
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#
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# mode - can be any of:
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# real - instruction valid in real mode (16 bit)
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# v8086 - instruction valid in virtual 8086 mode (16 bit inside 32 bit mode)
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# prot - instruction valid in protected mode (32 bit)
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# compat- instruction valid in compatibility mode (32 inside 64 bit mode)
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# long - instruction valid in long mode (64 bit)
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#
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# other - can be any of:
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# smm - instruction valid in System Management Mode
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# smm_off - instruction valid outside SMM
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# sgx - instruction is valid inside a Software Guard Extensions enclave
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# sgx_off - instruction valid outside SGX
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# tsx - instruction is valid inside a Transactional Syncronization Extensions region
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# tsx_off - instruction valid outside TSX
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#
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# vmx - can be any of:
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# vmxr - instruction valid in VMX root mode
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# vmxn - instruction valid in VMX non-root mode
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# vmxr_seam - instruction is valid inside VMX root Secure Arbitration Mode
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# vmxn_seam - instruction is valid inside VMX non-root Secure Arbitration Mode
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# vmx_off - instruction valid outside VMX operation
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#
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# If a group is not specified, all modes for that group will be considered valid.
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# If only some modes are specified for a group, only they will be considered valid, and all the others invalid.
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# If only some modes are specified negated (!), the instruction will be considered valid in all but the specified modes.
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#
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# For SGX and TSX, the most restrictive rule is applied: an instruction is listed as valid in any of these modes if
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# it will always execute successfully; instructions that may be valid or invalid depending on microarchitectural
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# design/conditions are listed as invalid in these modes.
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#
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# SMM, SGX, TSX, VMX, SEAM are special operating modes for bddisasm, so validty of an instruction must be specified both
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# inside and outside each of these modes. This is because an instruction may be valid in both modes (both SMM/SGX/TSX/SEAM
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# on or off), but others may be valid only if the respective operating mode is on or off.
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#
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# Instruction that are valid ONLY in VMX root operation; this also implies ring0, and only protected or long mode.
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VMXROOT : ring=r0|vmx=vmxr+vmxr_seam|mode=prot+long|other=sgx_off+tsx_off+smm_off
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# Instructions valid only in VMX operation, be it VMX root or VMX non-root.
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VMX : vmx=!vmx_off
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# Instruction valid only in VMX-non root
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VMXNROOT : vmx=vmxn+vmxn_seam
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# Instructions valid only in r0. SGX enclaves exist only in r3, so a 0 instruction will not be valid in SGX mode.
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KERNEL : ring=r0|other=!sgx
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# Instructions valid only in r3.
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USER : ring=r3
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# Instructions invalid in real mode. If an instruction is invalid in real mode, it will be invalid in v8086 as well.
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NOREAL : mode=!real+!v8086
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# Instructions invalid in v8086 mode. They may be, however, valid in real mode.
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NOV86 : mode=!v8086
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# Instructions valid only in long mode (64 bit).
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O64 : mode=long
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# Instructions invalid in long mode.
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NO64 : mode=!long
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# Instructions invalid in transactional regions.
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NOTSX : other=!tsx
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# Instructions invalid in SGX mode.
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NOSGX : other=!sgx
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# Instructions valid only in SMM. Note that while in SMM, one can transition in protected/long mode.
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SMM : other=!smm_off
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# Instructions invalid inside SMM, real-mode or V8086.
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NOSMM : mode=!real+!v8086|other=!smm
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# Instruction valid inside SEAM VXM root.
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SEAMR : ring=r0|mode=long|vmx=vmxr_seam
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# Instruction valid in SEAM non-root mode or VMX root. Not valid in SMM.
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SEAMN : mode=long|vmx=vmxr+vmxn+vmxn_seam|other=!smm |