Archipelago » qemu

/*

 * KQEMU header

 *

 * Copyright (c) 2004-2006 Fabrice Bellard

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

#ifndef KQEMU_H

#define KQEMU_H

#define KQEMU_VERSION 0x010300

struct kqemu_segment_cache {

    uint32_t selector;

    unsigned long base;

    uint32_t limit;

    uint32_t flags;

};

struct kqemu_cpu_state {

#ifdef __x86_64__

    unsigned long regs[16];

#else

    unsigned long regs[8];

#endif

    unsigned long eip;

    unsigned long eflags;

    uint32_t dummy0, dummy1, dumm2, dummy3, dummy4;

    struct kqemu_segment_cache segs[6]; /* selector values */

    struct kqemu_segment_cache ldt;

    struct kqemu_segment_cache tr;

    struct kqemu_segment_cache gdt; /* only base and limit are used */

    struct kqemu_segment_cache idt; /* only base and limit are used */

    unsigned long cr0;

    unsigned long dummy5;

    unsigned long cr2;

    unsigned long cr3;

    unsigned long cr4;

    uint32_t a20_mask;

    /* sysenter registers */

    uint32_t sysenter_cs;

    uint32_t sysenter_esp;

    uint32_t sysenter_eip;

    uint64_t efer __attribute__((aligned(8)));

    uint64_t star;

#ifdef __x86_64__

    unsigned long lstar;

    unsigned long cstar;

    unsigned long fmask;

    unsigned long kernelgsbase;

#endif

    uint64_t tsc_offset;

    unsigned long dr0;

    unsigned long dr1;

    unsigned long dr2;

    unsigned long dr3;

    unsigned long dr6;

    unsigned long dr7;

    uint8_t cpl;

    uint8_t user_only;

    uint32_t error_code; /* error_code when exiting with an exception */

    unsigned long next_eip; /* next eip value when exiting with an interrupt */

    unsigned int nb_pages_to_flush; /* number of pages to flush,

                                       KQEMU_FLUSH_ALL means full flush */

#define KQEMU_MAX_PAGES_TO_FLUSH 512

#define KQEMU_FLUSH_ALL (KQEMU_MAX_PAGES_TO_FLUSH + 1)

    long retval;

    /* number of ram_dirty entries to update */

    unsigned int nb_ram_pages_to_update;

#define KQEMU_MAX_RAM_PAGES_TO_UPDATE 512

#define KQEMU_RAM_PAGES_UPDATE_ALL (KQEMU_MAX_RAM_PAGES_TO_UPDATE + 1)

#define KQEMU_MAX_MODIFIED_RAM_PAGES 512

    unsigned int nb_modified_ram_pages;

};

struct kqemu_init {

    uint8_t *ram_base; /* must be page aligned */

    unsigned long ram_size; /* must be multiple of 4 KB */

    uint8_t *ram_dirty; /* must be page aligned */

    uint32_t **phys_to_ram_map; /* must be page aligned */

    unsigned long *pages_to_flush; /* must be page aligned */

    unsigned long *ram_pages_to_update; /* must be page aligned */

    unsigned long *modified_ram_pages; /* must be page aligned */

};

#define KQEMU_RET_ABORT    (-1)

#define KQEMU_RET_EXCEPTION 0x0000 /* 8 low order bit are the exception */

#define KQEMU_RET_INT       0x0100 /* 8 low order bit are the interrupt */

#define KQEMU_RET_SOFTMMU   0x0200 /* emulation needed (I/O or

                                      unsupported INSN) */

#define KQEMU_RET_INTR      0x0201 /* interrupted by a signal */

#define KQEMU_RET_SYSCALL   0x0300 /* syscall insn */

#ifdef _WIN32

#define KQEMU_EXEC             CTL_CODE(FILE_DEVICE_UNKNOWN, 1, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)

#define KQEMU_INIT             CTL_CODE(FILE_DEVICE_UNKNOWN, 2, METHOD_BUFFERED, FILE_WRITE_ACCESS)

#define KQEMU_GET_VERSION      CTL_CODE(FILE_DEVICE_UNKNOWN, 3, METHOD_BUFFERED, FILE_READ_ACCESS)

#define KQEMU_MODIFY_RAM_PAGES CTL_CODE(FILE_DEVICE_UNKNOWN, 4, METHOD_BUFFERED, FILE_WRITE_ACCESS)

#else

#define KQEMU_EXEC             _IOWR('q', 1, struct kqemu_cpu_state)

#define KQEMU_INIT             _IOW('q', 2, struct kqemu_init)

#define KQEMU_GET_VERSION      _IOR('q', 3, int)

#define KQEMU_MODIFY_RAM_PAGES _IOW('q', 4, int)

#endif

#endif /* KQEMU_H */