Lines Matching refs:insn
23 struct insn {
55 const insn_byte_t *kaddr; /* kernel address of insn to analyze */
56 const insn_byte_t *end_kaddr; /* kernel address of last insn in buffer */
89 extern void insn_init(struct insn *insn, const void *kaddr, int buf_len, int x86_64);
90 extern int insn_get_prefixes(struct insn *insn);
91 extern int insn_get_opcode(struct insn *insn);
92 extern int insn_get_modrm(struct insn *insn);
93 extern int insn_get_sib(struct insn *insn);
94 extern int insn_get_displacement(struct insn *insn);
95 extern int insn_get_immediate(struct insn *insn);
96 extern int insn_get_length(struct insn *insn);
106 extern int insn_decode(struct insn *insn, const void *kaddr, int buf_len, enum insn_mode m);
111 static inline void insn_get_attribute(struct insn *insn)
113 insn_get_modrm(insn);
117 extern int insn_rip_relative(struct insn *insn);
119 /* Init insn for kernel text */
120 static inline void kernel_insn_init(struct insn *insn,
124 insn_init(insn, kaddr, buf_len, 1);
126 insn_init(insn, kaddr, buf_len, 0);
130 static inline int insn_is_avx(struct insn *insn)
132 if (!insn->prefixes.got)
133 insn_get_prefixes(insn);
134 return (insn->vex_prefix.value != 0);
137 static inline int insn_is_evex(struct insn *insn)
139 if (!insn->prefixes.got)
140 insn_get_prefixes(insn);
141 return (insn->vex_prefix.nbytes == 4);
144 static inline int insn_has_emulate_prefix(struct insn *insn)
146 return !!insn->emulate_prefix_size;
150 static inline int insn_complete(struct insn *insn)
152 return insn->opcode.got && insn->modrm.got && insn->sib.got &&
153 insn->displacement.got && insn->immediate.got;
156 static inline insn_byte_t insn_vex_m_bits(struct insn *insn)
158 if (insn->vex_prefix.nbytes == 2) /* 2 bytes VEX */
160 else if (insn->vex_prefix.nbytes == 3) /* 3 bytes VEX */
161 return X86_VEX3_M(insn->vex_prefix.bytes[1]);
163 return X86_EVEX_M(insn->vex_prefix.bytes[1]);
166 static inline insn_byte_t insn_vex_p_bits(struct insn *insn)
168 if (insn->vex_prefix.nbytes == 2) /* 2 bytes VEX */
169 return X86_VEX_P(insn->vex_prefix.bytes[1]);
171 return X86_VEX_P(insn->vex_prefix.bytes[2]);
175 static inline int insn_last_prefix_id(struct insn *insn)
177 if (insn_is_avx(insn))
178 return insn_vex_p_bits(insn); /* VEX_p is a SIMD prefix id */
180 if (insn->prefixes.bytes[3])
181 return inat_get_last_prefix_id(insn->prefixes.bytes[3]);
187 static inline int insn_offset_rex_prefix(struct insn *insn)
189 return insn->prefixes.nbytes;
191 static inline int insn_offset_vex_prefix(struct insn *insn)
193 return insn_offset_rex_prefix(insn) + insn->rex_prefix.nbytes;
195 static inline int insn_offset_opcode(struct insn *insn)
197 return insn_offset_vex_prefix(insn) + insn->vex_prefix.nbytes;
199 static inline int insn_offset_modrm(struct insn *insn)
201 return insn_offset_opcode(insn) + insn->opcode.nbytes;
203 static inline int insn_offset_sib(struct insn *insn)
205 return insn_offset_modrm(insn) + insn->modrm.nbytes;
207 static inline int insn_offset_displacement(struct insn *insn)
209 return insn_offset_sib(insn) + insn->sib.nbytes;
211 static inline int insn_offset_immediate(struct insn *insn)
213 return insn_offset_displacement(insn) + insn->displacement.nbytes;
218 * @insn: Pointer to struct insn.
222 * Iterate prefix bytes of given @insn. Each prefix byte is stored in @prefix
228 #define for_each_insn_prefix(insn, idx, prefix) \
229 for (idx = 0; idx < ARRAY_SIZE(insn->prefixes.bytes) && (prefix = insn->prefixes.bytes[idx]) != 0; idx++)
239 * This function returns true if @insn is MOV SS or POP SS. On these
242 static inline int insn_masking_exception(struct insn *insn)
244 return insn->opcode.bytes[0] == POP_SS_OPCODE ||
245 (insn->opcode.bytes[0] == MOV_SREG_OPCODE &&
246 X86_MODRM_REG(insn->modrm.bytes[0]) == 2);