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- #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 mmio_type {
- MMIO_DECODE_FAILED,
- MMIO_WRITE,
- MMIO_WRITE_IMM,
- MMIO_READ,
- MMIO_READ_ZERO_EXTEND,
- MMIO_READ_SIGN_EXTEND,
- MMIO_MOVS,
- };
- enum mmio_type insn_decode_mmio(struct insn *insn, int *bytes);
- #endif /* _ASM_X86_INSN_EVAL_H */
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