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/*
* vmx_platform.h: VMX platform support
* Copyright (c) 2004, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place - Suite 330, Boston, MA 02111-1307 USA.
*
*/
#ifndef __ASM_X86_VMX_PLATFORM_H__
#define __ASM_X86_VMX_PLATFORM_H__
#include <public/xen.h>
#include <asm/e820.h>
#include <asm/vmx_virpit.h>
#include <asm/vmx_intercept.h>
#define MAX_OPERAND_NUM 3
#define I_NAME_LEN 16
#define mk_operand(size, index, seg, flag) \
(((size) << 24) | ((index) << 16) | ((seg) << 8) | (flag))
#define operand_size(operand) \
((operand >> 24) & 0xFF)
#define operand_index(operand) \
((operand >> 16) & 0xFF)
//For instruction.operand[].size
#define BYTE 1
#define WORD 2
#define LONG 4
#define QUAD 8
#define BYTE_64 16
//For instruction.operand[].flag
#define REGISTER 0x1
#define MEMORY 0x2
#define IMMEDIATE 0x4
#define WZEROEXTEND 0x8
//For instruction.flags
#define REPZ 0x1
#define REPNZ 0x2
struct instruction {
__s8 i_name[I_NAME_LEN]; //Instruction's name
__s16 op_size; //The operand's bit size, e.g. 16-bit or 32-bit.
__u64 offset; //The effective address
//offset = Base + (Index * Scale) + Displacement
__u64 immediate;
__u16 seg_sel; //Segmentation selector
__u32 operand[MAX_OPERAND_NUM]; //The order of operand is from AT&T Assembly
__s16 op_num; //The operand numbers
__u32 flags; //
};
#define MAX_INST_LEN 32
struct mi_per_cpu_info
{
unsigned long mmio_target;
struct cpu_user_regs *inst_decoder_regs;
};
struct virutal_platform_def {
unsigned long *real_mode_data; /* E820, etc. */
unsigned long shared_page_va;
struct vmx_virpit_t vmx_pit;
struct vmx_handler_t vmx_handler;
struct mi_per_cpu_info mpci; /* MMIO */
};
extern void handle_mmio(unsigned long, unsigned long);
extern void vmx_wait_io(void);
extern int vmx_setup_platform(struct vcpu *, struct cpu_user_regs *);
// XXX - think about this -- maybe use bit 30 of the mfn to signify an MMIO frame.
#define mmio_space(gpa) (!VALID_MFN(phys_to_machine_mapping((gpa) >> PAGE_SHIFT)))
#endif
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