| #ifndef _ASM_X86_INSN_EVAL_H |
| #define _ASM_X86_INSN_EVAL_H |
| /* |
| * A collection of utility functions for x86 instruction analysis to be |
| * used in a kernel context. Useful when, for instance, making sense |
| * of the registers indicated by operands. |
| */ |
| |
| #include <linux/compiler.h> |
| #include <linux/bug.h> |
| #include <linux/err.h> |
| #include <asm/ptrace.h> |
| |
| #define INSN_CODE_SEG_ADDR_SZ(params) ((params >> 4) & 0xf) |
| #define INSN_CODE_SEG_OPND_SZ(params) (params & 0xf) |
| #define INSN_CODE_SEG_PARAMS(oper_sz, addr_sz) (oper_sz | (addr_sz << 4)) |
| |
| int pt_regs_offset(struct pt_regs *regs, int regno); |
| |
| bool insn_has_rep_prefix(struct insn *insn); |
| void __user *insn_get_addr_ref(struct insn *insn, struct pt_regs *regs); |
| int insn_get_modrm_rm_off(struct insn *insn, struct pt_regs *regs); |
| int insn_get_modrm_reg_off(struct insn *insn, struct pt_regs *regs); |
| unsigned long *insn_get_modrm_reg_ptr(struct insn *insn, struct pt_regs *regs); |
| unsigned long insn_get_seg_base(struct pt_regs *regs, int seg_reg_idx); |
| int insn_get_code_seg_params(struct pt_regs *regs); |
| int insn_get_effective_ip(struct pt_regs *regs, unsigned long *ip); |
| int insn_fetch_from_user(struct pt_regs *regs, |
| unsigned char buf[MAX_INSN_SIZE]); |
| int insn_fetch_from_user_inatomic(struct pt_regs *regs, |
| unsigned char buf[MAX_INSN_SIZE]); |
| bool insn_decode_from_regs(struct insn *insn, struct pt_regs *regs, |
| unsigned char buf[MAX_INSN_SIZE], int buf_size); |
| |
| enum insn_mmio_type { |
| INSN_MMIO_DECODE_FAILED, |
| INSN_MMIO_WRITE, |
| INSN_MMIO_WRITE_IMM, |
| INSN_MMIO_READ, |
| INSN_MMIO_READ_ZERO_EXTEND, |
| INSN_MMIO_READ_SIGN_EXTEND, |
| INSN_MMIO_MOVS, |
| }; |
| |
| enum insn_mmio_type insn_decode_mmio(struct insn *insn, int *bytes); |
| |
| #endif /* _ASM_X86_INSN_EVAL_H */ |
