-#ifndef __VMM_EMULATE_H
-#define __VMM_EMULATE_H
+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National
+ * Science Foundation and the Department of Energy.
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico. You can find out more at
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software. You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+#ifndef __VMM_DECODER_H
+#define __VMM_DECODER_H
#ifdef __V3VEE__
#include <palacios/vmm.h>
-typedef enum {INVALID_OPERAND, REG_OPERAND, MEM_OPERAND, IMM_OPERAND} operand_type_t;
+typedef enum { V3_INVALID_OP,
+ V3_OP_MOVCR2, V3_OP_MOV2CR, V3_OP_SMSW, V3_OP_LMSW, V3_OP_CLTS,
+ V3_OP_ADC, V3_OP_ADD, V3_OP_AND, V3_OP_OR, V3_OP_XOR, V3_OP_SUB,
+ V3_OP_INC, V3_OP_DEC, V3_OP_NEG, V3_OP_MOV, V3_OP_NOT, V3_OP_XCHG,
+ V3_OP_SETB, V3_OP_SETBE, V3_OP_SETL, V3_OP_SETLE, V3_OP_SETNB,
+ V3_OP_SETNBE, V3_OP_SETNL, V3_OP_SETNLE, V3_OP_SETNO, V3_OP_SETNP,
+ V3_OP_SETNS, V3_OP_SETNZ, V3_OP_SETO, V3_OP_SETP, V3_OP_SETS,
+ V3_OP_SETZ, V3_OP_MOVS} v3_op_type_t;
+
+
+typedef enum {INVALID_OPERAND, REG_OPERAND, MEM_OPERAND, IMM_OPERAND} v3_operand_type_t;
struct x86_operand {
addr_t operand;
uint_t size;
- operand_type_t type;
+ v3_operand_type_t type;
};
struct x86_prefixes {
uint_t fs_override : 1; // 0x64
uint_t gs_override : 1; // 0x65
uint_t br_not_taken : 1; // 0x2E
- uint_t br_takend : 1; // 0x3E
+ uint_t br_taken : 1; // 0x3E
uint_t op_size : 1; // 0x66
uint_t addr_size : 1; // 0x67
};
struct x86_instr {
struct x86_prefixes prefixes;
uint_t instr_length;
- addr_t opcode; // a pointer to the V3_OPCODE_[*] arrays defined below
+ v3_op_type_t op_type;
uint_t num_operands;
struct x86_operand dst_operand;
struct x86_operand src_operand;
struct x86_operand third_operand;
+ addr_t str_op_length;
+ addr_t is_str_op;
void * decoder_data;
};
/*
* Initializes a decoder
*/
-int init_decoder();
+int v3_init_decoder();
/*
* Decodes an instruction
/* Removes a rep prefix in place */
-void strip_rep_prefix(uchar_t * instr, int length);
-
+void v3_strip_rep_prefix(uchar_t * instr, int length);
+void v3_get_prefixes(uchar_t * instr, struct x86_prefixes * prefixes);
/*
#define PREFIX_OP_SIZE 0x66
#define PREFIX_ADDR_SIZE 0x67
-int opcode_cmp(const uchar_t * op1, const uchar_t * op2);
+int v3_opcode_cmp(const uchar_t * op1, const uchar_t * op2);
-static inline int is_prefix_byte(char byte) {
+static inline int is_prefix_byte(uchar_t byte) {
switch (byte) {
case 0xF0: // lock
case 0xF2: // REPNE/REPNZ
return 0xffff;
break;
case PROTECTED:
+ case PROTECTED_PAE:
return 0xffffffff;
+ case LONG:
+ case LONG_32_COMPAT:
+ case LONG_16_COMPAT:
default:
- V3_ASSERT(0);
- return 0;
+ PrintError("Unsupported Address Mode\n");
+ return -1;
}
}
break;*/
case PROTECTED:
+ case PROTECTED_PAE:
+ case LONG_32_COMPAT:
return addr + seg->base;
break;
+
+ case LONG:
+ // In long mode the segment bases are disregarded (forced to 0), unless using
+ // FS or GS, then the base addresses are added
+ return addr + seg->base;
+
+ case LONG_16_COMPAT:
default:
- V3_ASSERT(0);
- return 0;
+ PrintError("Unsupported CPU Mode: %d\n", info->cpu_mode);
+ return -1;
}
}
-static inline operand_type_t decode_operands16(struct v3_gprs * gprs, // input/output
+static inline v3_operand_type_t decode_operands16(struct v3_gprs * gprs, // input/output
char * modrm_instr, // input
int * offset, // output
addr_t * first_operand, // output
struct modrm_byte * modrm = (struct modrm_byte *)modrm_instr;
addr_t base_addr = 0;
modrm_mode_t mod_mode = 0;
- operand_type_t addr_type = INVALID_OPERAND;
+ v3_operand_type_t addr_type = INVALID_OPERAND;
char * instr_cursor = modrm_instr;
// PrintDebug("ModRM mod=%d\n", modrm->mod);
-static inline operand_type_t decode_operands32(struct v3_gprs * gprs, // input/output
- char * modrm_instr, // input
+static inline v3_operand_type_t decode_operands32(struct v3_gprs * gprs, // input/output
+ uchar_t * modrm_instr, // input
int * offset, // output
addr_t * first_operand, // output
addr_t * second_operand, // output
reg_size_t reg_size) { // input
- char * instr_cursor = modrm_instr;
+ uchar_t * instr_cursor = modrm_instr;
struct modrm_byte * modrm = (struct modrm_byte *)modrm_instr;
addr_t base_addr = 0;
modrm_mode_t mod_mode = 0;
uint_t has_sib_byte = 0;
- operand_type_t addr_type = INVALID_OPERAND;
+ v3_operand_type_t addr_type = INVALID_OPERAND;
base_addr = gprs->rax;
break;
case 1:
- base_addr = gprs->rcx;
+ base_addr = gprs->rcx;
break;
case 2:
base_addr = gprs->rdx;
