1: /*
    2:  * KQEMU header
    3:  *
    4:  * Copyright (c) 2004-2006 Fabrice Bellard
    5:  *
    6:  * Permission is hereby granted, free of charge, to any person obtaining a copy
    7:  * of this software and associated documentation files (the "Software"), to deal
    8:  * in the Software without restriction, including without limitation the rights
    9:  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   10:  * copies of the Software, and to permit persons to whom the Software is
   11:  * furnished to do so, subject to the following conditions:
   12:  *
   13:  * The above copyright notice and this permission notice shall be included in
   14:  * all copies or substantial portions of the Software.
   15:  *
   16:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   17:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   18:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
   19:  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   20:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   21:  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   22:  * THE SOFTWARE.
   23:  */
   24: #ifndef KQEMU_H
   25: #define KQEMU_H
   26: 
   27: #define KQEMU_VERSION 0x010300
   28: 
   29: struct kqemu_segment_cache {
   30:     uint32_t selector;
   31:     unsigned long base;
   32:     uint32_t limit;
   33:     uint32_t flags;
   34: };
   35: 
   36: struct kqemu_cpu_state {
   37: #ifdef __x86_64__
   38:     unsigned long regs[16];
   39: #else
   40:     unsigned long regs[8];
   41: #endif
   42:     unsigned long eip;
   43:     unsigned long eflags;
   44: 
   45:     uint32_t dummy0, dummy1, dumm2, dummy3, dummy4;
   46: 
   47:     struct kqemu_segment_cache segs[6]; /* selector values */
   48:     struct kqemu_segment_cache ldt;
   49:     struct kqemu_segment_cache tr;
   50:     struct kqemu_segment_cache gdt; /* only base and limit are used */
   51:     struct kqemu_segment_cache idt; /* only base and limit are used */
   52: 
   53:     unsigned long cr0;
   54:     unsigned long dummy5;
   55:     unsigned long cr2;
   56:     unsigned long cr3;
   57:     unsigned long cr4;
   58:     uint32_t a20_mask;
   59: 
   60:     /* sysenter registers */
   61:     uint32_t sysenter_cs;
   62:     uint32_t sysenter_esp;
   63:     uint32_t sysenter_eip;
   64:     uint64_t efer __attribute__((aligned(8)));
   65:     uint64_t star;
   66: #ifdef __x86_64__
   67:     unsigned long lstar;
   68:     unsigned long cstar;
   69:     unsigned long fmask;
   70:     unsigned long kernelgsbase;
   71: #endif
   72:     uint64_t tsc_offset;
   73: 
   74:     unsigned long dr0;
   75:     unsigned long dr1;
   76:     unsigned long dr2;
   77:     unsigned long dr3;
   78:     unsigned long dr6;
   79:     unsigned long dr7;
   80: 
   81:     uint8_t cpl;
   82:     uint8_t user_only;
   83: 
   84:     uint32_t error_code; /* error_code when exiting with an exception */
   85:     unsigned long next_eip; /* next eip value when exiting with an interrupt */
   86:     unsigned int nb_pages_to_flush; /* number of pages to flush,
   87:                                        KQEMU_FLUSH_ALL means full flush */
   88: #define KQEMU_MAX_PAGES_TO_FLUSH 512
   89: #define KQEMU_FLUSH_ALL (KQEMU_MAX_PAGES_TO_FLUSH + 1)
   90: 
   91:     long retval;
   92: 
   93:     /* number of ram_dirty entries to update */
   94:     unsigned int nb_ram_pages_to_update;
   95: #define KQEMU_MAX_RAM_PAGES_TO_UPDATE 512
   96: #define KQEMU_RAM_PAGES_UPDATE_ALL (KQEMU_MAX_RAM_PAGES_TO_UPDATE + 1)
   97: 
   98: #define KQEMU_MAX_MODIFIED_RAM_PAGES 512
   99:     unsigned int nb_modified_ram_pages;
  100: };
  101: 
  102: struct kqemu_init {
  103:     uint8_t *ram_base; /* must be page aligned */
  104:     unsigned long ram_size; /* must be multiple of 4 KB */
  105:     uint8_t *ram_dirty; /* must be page aligned */
  106:     uint32_t **phys_to_ram_map; /* must be page aligned */
  107:     unsigned long *pages_to_flush; /* must be page aligned */
  108:     unsigned long *ram_pages_to_update; /* must be page aligned */
  109:     unsigned long *modified_ram_pages; /* must be page aligned */
  110: };
  111: 
  112: #define KQEMU_RET_ABORT    (-1)
  113: #define KQEMU_RET_EXCEPTION 0x0000 /* 8 low order bit are the exception */
  114: #define KQEMU_RET_INT       0x0100 /* 8 low order bit are the interrupt */
  115: #define KQEMU_RET_SOFTMMU   0x0200 /* emulation needed (I/O or
  116:                                       unsupported INSN) */
  117: #define KQEMU_RET_INTR      0x0201 /* interrupted by a signal */
  118: #define KQEMU_RET_SYSCALL   0x0300 /* syscall insn */
  119: 
  120: #ifdef _WIN32
  121: #define KQEMU_EXEC             CTL_CODE(FILE_DEVICE_UNKNOWN, 1, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
  122: #define KQEMU_INIT             CTL_CODE(FILE_DEVICE_UNKNOWN, 2, METHOD_BUFFERED, FILE_WRITE_ACCESS)
  123: #define KQEMU_GET_VERSION      CTL_CODE(FILE_DEVICE_UNKNOWN, 3, METHOD_BUFFERED, FILE_READ_ACCESS)
  124: #define KQEMU_MODIFY_RAM_PAGES CTL_CODE(FILE_DEVICE_UNKNOWN, 4, METHOD_BUFFERED, FILE_WRITE_ACCESS)
  125: #else
  126: #define KQEMU_EXEC             _IOWR('q', 1, struct kqemu_cpu_state)
  127: #define KQEMU_INIT             _IOW('q', 2, struct kqemu_init)
  128: #define KQEMU_GET_VERSION      _IOR('q', 3, int)
  129: #define KQEMU_MODIFY_RAM_PAGES _IOW('q', 4, int)
  130: #endif
  131: 
  132: #endif /* KQEMU_H */