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/*-
* Copyright (c) 2012 NetApp, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _VMM_INSTRUCTION_EMUL_H_
#define _VMM_INSTRUCTION_EMUL_H_
enum vie_op_size {
VIE_OP_SIZE_32BIT, /* default */
VIE_OP_SIZE_64BIT,
VIE_OP_SIZE_8BIT
};
#define VIE_INST_SIZE 15
struct vie {
uint8_t inst[VIE_INST_SIZE];
uint8_t rex_w:1,
rex_r:1,
rex_x:1,
rex_b:1;
uint8_t mod:2,
reg:4,
rm:4;
uint8_t opcode_byte;
uint16_t opcode_flags;
uint8_t disp_bytes;
uint8_t imm_bytes;
int num_valid;
int num_processed;
enum vm_reg_name base_register;
enum vm_reg_name index_register;
enum vm_reg_name operand_register;
int op_size;
int64_t displacement;
int64_t immediate;
};
#define VIE_F_HAS_MODRM (1 << 0)
#define VIE_F_FROM_RM (1 << 1)
#define VIE_F_FROM_REG (1 << 2)
#define VIE_F_TO_RM (1 << 3)
#define VIE_F_TO_REG (1 << 4)
#define VIE_F_FROM_IMM (1 << 5)
#define VIE_MOD_INDIRECT 0
#define VIE_MOD_INDIRECT_DISP8 1
#define VIE_MOD_INDIRECT_DISP32 2
#define VIE_MOD_DIRECT 3
#define VIE_RM_SIB 4
#define VIE_RM_DISP32 5
struct vm;
int vmm_fetch_instruction(struct vm *vm, uint64_t rip, int inst_length,
uint64_t cr3, struct vie *vie);
int vmm_decode_instruction(struct vie *vie);
#endif
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