68 static int get_reg_offset(struct insn *insn, struct pt_regs *regs,  in get_reg_offset()  argument
98 	if (IS_ENABLED(CONFIG_X86_64) && !insn->x86_64)  in get_reg_offset()
103 		regno = X86_MODRM_RM(insn->modrm.value);  in get_reg_offset()
104 		if (X86_REX_B(insn->rex_prefix.value))  in get_reg_offset()
109 		regno = X86_SIB_INDEX(insn->sib.value);  in get_reg_offset()
110 		if (X86_REX_X(insn->rex_prefix.value))  in get_reg_offset()
115 		regno = X86_SIB_BASE(insn->sib.value);  in get_reg_offset()
116 		if (X86_REX_B(insn->rex_prefix.value))  in get_reg_offset()
138 static void __user *mpx_get_addr_ref(struct insn *insn, struct pt_regs *regs)  in mpx_get_addr_ref()  argument
144 	insn_get_modrm(insn);  in mpx_get_addr_ref()
145 	insn_get_sib(insn);  in mpx_get_addr_ref()
146 	sib = insn->sib.value;  in mpx_get_addr_ref()
148 	if (X86_MODRM_MOD(insn->modrm.value) == 3) {  in mpx_get_addr_ref()
149 		addr_offset = get_reg_offset(insn, regs, REG_TYPE_RM);  in mpx_get_addr_ref()
154 		if (insn->sib.nbytes) {  in mpx_get_addr_ref()
155 			base_offset = get_reg_offset(insn, regs, REG_TYPE_BASE);  in mpx_get_addr_ref()
159 			indx_offset = get_reg_offset(insn, regs, REG_TYPE_INDEX);  in mpx_get_addr_ref()
167 			addr_offset = get_reg_offset(insn, regs, REG_TYPE_RM);  in mpx_get_addr_ref()
172 		addr += insn->displacement.value;  in mpx_get_addr_ref()
179 static int mpx_insn_decode(struct insn *insn,  in mpx_insn_decode()  argument
196 	insn_init(insn, buf, nr_copied, x86_64);  in mpx_insn_decode()
197 	insn_get_length(insn);  in mpx_insn_decode()
206 	if (nr_copied < insn->length)  in mpx_insn_decode()
209 	insn_get_opcode(insn);  in mpx_insn_decode()
214 	if (insn->opcode.bytes[0] != 0x0f)  in mpx_insn_decode()
216 	if ((insn->opcode.bytes[1] != 0x1a) &&  in mpx_insn_decode()
217 	    (insn->opcode.bytes[1] != 0x1b))  in mpx_insn_decode()
243 	struct insn insn;  in mpx_generate_siginfo()  local
247 	err = mpx_insn_decode(&insn, regs);  in mpx_generate_siginfo()
255 	insn_get_modrm(&insn);  in mpx_generate_siginfo()
256 	bndregno = X86_MODRM_REG(insn.modrm.value);  in mpx_generate_siginfo()
291 	info->si_addr = mpx_get_addr_ref(&insn, regs);  in mpx_generate_siginfo()