cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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insn-eval.h (1668B)

      1#ifndef _ASM_X86_INSN_EVAL_H
      2#define _ASM_X86_INSN_EVAL_H
      3/*
      4 * A collection of utility functions for x86 instruction analysis to be
      5 * used in a kernel context. Useful when, for instance, making sense
      6 * of the registers indicated by operands.
      7 */
      8
      9#include <linux/compiler.h>
     10#include <linux/bug.h>
     11#include <linux/err.h>
     12#include <asm/ptrace.h>
     13
     14#define INSN_CODE_SEG_ADDR_SZ(params) ((params >> 4) & 0xf)
     15#define INSN_CODE_SEG_OPND_SZ(params) (params & 0xf)
     16#define INSN_CODE_SEG_PARAMS(oper_sz, addr_sz) (oper_sz | (addr_sz << 4))
     17
     18int pt_regs_offset(struct pt_regs *regs, int regno);
     19
     20bool insn_has_rep_prefix(struct insn *insn);
     21void __user *insn_get_addr_ref(struct insn *insn, struct pt_regs *regs);
     22int insn_get_modrm_rm_off(struct insn *insn, struct pt_regs *regs);
     23int insn_get_modrm_reg_off(struct insn *insn, struct pt_regs *regs);
     24unsigned long *insn_get_modrm_reg_ptr(struct insn *insn, struct pt_regs *regs);
     25unsigned long insn_get_seg_base(struct pt_regs *regs, int seg_reg_idx);
     26int insn_get_code_seg_params(struct pt_regs *regs);
     27int insn_get_effective_ip(struct pt_regs *regs, unsigned long *ip);
     28int insn_fetch_from_user(struct pt_regs *regs,
     29			 unsigned char buf[MAX_INSN_SIZE]);
     30int insn_fetch_from_user_inatomic(struct pt_regs *regs,
     31				  unsigned char buf[MAX_INSN_SIZE]);
     32bool insn_decode_from_regs(struct insn *insn, struct pt_regs *regs,
     33			   unsigned char buf[MAX_INSN_SIZE], int buf_size);
     34
     35enum mmio_type {
     36	MMIO_DECODE_FAILED,
     37	MMIO_WRITE,
     38	MMIO_WRITE_IMM,
     39	MMIO_READ,
     40	MMIO_READ_ZERO_EXTEND,
     41	MMIO_READ_SIGN_EXTEND,
     42	MMIO_MOVS,
     43};
     44
     45enum mmio_type insn_decode_mmio(struct insn *insn, int *bytes);
     46
     47#endif /* _ASM_X86_INSN_EVAL_H */