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/*
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 * KQEMU header
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 *
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 * Copyright (c) 2004-2006 Fabrice Bellard
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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 * THE SOFTWARE.
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 */
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#ifndef KQEMU_H
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#define KQEMU_H
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#define KQEMU_VERSION 0x010300
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struct kqemu_segment_cache {
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    uint32_t selector;
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    unsigned long base;
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    uint32_t limit;
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    uint32_t flags;
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};
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struct kqemu_cpu_state {
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#ifdef __x86_64__
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    unsigned long regs[16];
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#else
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    unsigned long regs[8];
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#endif
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    unsigned long eip;
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    unsigned long eflags;
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    uint32_t dummy0, dummy1, dumm2, dummy3, dummy4;
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    struct kqemu_segment_cache segs[6]; /* selector values */
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    struct kqemu_segment_cache ldt;
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    struct kqemu_segment_cache tr;
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    struct kqemu_segment_cache gdt; /* only base and limit are used */
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    struct kqemu_segment_cache idt; /* only base and limit are used */
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    unsigned long cr0;
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    unsigned long dummy5;
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    unsigned long cr2;
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    unsigned long cr3;
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    unsigned long cr4;
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    uint32_t a20_mask;
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    /* sysenter registers */
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    uint32_t sysenter_cs;
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    uint32_t sysenter_esp;
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    uint32_t sysenter_eip;
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    uint64_t efer __attribute__((aligned(8)));
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    uint64_t star;
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#ifdef __x86_64__
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    unsigned long lstar;
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    unsigned long cstar;
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    unsigned long fmask;
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    unsigned long kernelgsbase;
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#endif
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    uint64_t tsc_offset;
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    unsigned long dr0;
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    unsigned long dr1;
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    unsigned long dr2;
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    unsigned long dr3;
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    unsigned long dr6;
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    unsigned long dr7;
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    uint8_t cpl;
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    uint8_t user_only;
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    uint32_t error_code; /* error_code when exiting with an exception */
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    unsigned long next_eip; /* next eip value when exiting with an interrupt */
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    unsigned int nb_pages_to_flush; /* number of pages to flush,
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                                       KQEMU_FLUSH_ALL means full flush */
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#define KQEMU_MAX_PAGES_TO_FLUSH 512
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#define KQEMU_FLUSH_ALL (KQEMU_MAX_PAGES_TO_FLUSH + 1)
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    long retval;
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    /* number of ram_dirty entries to update */
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    unsigned int nb_ram_pages_to_update;
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#define KQEMU_MAX_RAM_PAGES_TO_UPDATE 512
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#define KQEMU_RAM_PAGES_UPDATE_ALL (KQEMU_MAX_RAM_PAGES_TO_UPDATE + 1)
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#define KQEMU_MAX_MODIFIED_RAM_PAGES 512
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    unsigned int nb_modified_ram_pages;
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};
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struct kqemu_init {
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    uint8_t *ram_base; /* must be page aligned */
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    unsigned long ram_size; /* must be multiple of 4 KB */
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    uint8_t *ram_dirty; /* must be page aligned */
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    uint32_t **phys_to_ram_map; /* must be page aligned */
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    unsigned long *pages_to_flush; /* must be page aligned */
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    unsigned long *ram_pages_to_update; /* must be page aligned */
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    unsigned long *modified_ram_pages; /* must be page aligned */
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};
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#define KQEMU_RET_ABORT    (-1)
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#define KQEMU_RET_EXCEPTION 0x0000 /* 8 low order bit are the exception */
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#define KQEMU_RET_INT       0x0100 /* 8 low order bit are the interrupt */
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#define KQEMU_RET_SOFTMMU   0x0200 /* emulation needed (I/O or
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                                      unsupported INSN) */
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#define KQEMU_RET_INTR      0x0201 /* interrupted by a signal */
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#define KQEMU_RET_SYSCALL   0x0300 /* syscall insn */
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#ifdef _WIN32
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#define KQEMU_EXEC             CTL_CODE(FILE_DEVICE_UNKNOWN, 1, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
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#define KQEMU_INIT             CTL_CODE(FILE_DEVICE_UNKNOWN, 2, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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#define KQEMU_GET_VERSION      CTL_CODE(FILE_DEVICE_UNKNOWN, 3, METHOD_BUFFERED, FILE_READ_ACCESS)
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#define KQEMU_MODIFY_RAM_PAGES CTL_CODE(FILE_DEVICE_UNKNOWN, 4, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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#else
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#define KQEMU_EXEC             _IOWR('q', 1, struct kqemu_cpu_state)
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#define KQEMU_INIT             _IOW('q', 2, struct kqemu_init)
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#define KQEMU_GET_VERSION      _IOR('q', 3, int)
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#define KQEMU_MODIFY_RAM_PAGES _IOW('q', 4, int)
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#endif
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#endif /* KQEMU_H */