1 /* 2 * KQEMU header 3 * 4 * Copyright (c) 2004-2008 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 #if defined(__i386__) 28 #define KQEMU_PAD32(x) x 29 #else 30 #define KQEMU_PAD32(x) 31 #endif 32 33 #define KQEMU_VERSION 0x010400 34 35 struct kqemu_segment_cache { 36 uint16_t selector; 37 uint16_t padding1; 38 uint32_t flags; 39 uint64_t base; 40 uint32_t limit; 41 uint32_t padding2; 42 }; 43 44 struct kqemu_cpu_state { 45 uint64_t regs[16]; 46 uint64_t eip; 47 uint64_t eflags; 48 49 struct kqemu_segment_cache segs[6]; /* selector values */ 50 struct kqemu_segment_cache ldt; 51 struct kqemu_segment_cache tr; 52 struct kqemu_segment_cache gdt; /* only base and limit are used */ 53 struct kqemu_segment_cache idt; /* only base and limit are used */ 54 55 uint64_t cr0; 56 uint64_t cr2; 57 uint64_t cr3; 58 uint64_t cr4; 59 uint64_t a20_mask; 60 61 /* sysenter registers */ 62 uint64_t sysenter_cs; 63 uint64_t sysenter_esp; 64 uint64_t sysenter_eip; 65 uint64_t efer; 66 uint64_t star; 67 68 uint64_t lstar; 69 uint64_t cstar; 70 uint64_t fmask; 71 uint64_t kernelgsbase; 72 73 uint64_t tsc_offset; 74 75 uint64_t dr0; 76 uint64_t dr1; 77 uint64_t dr2; 78 uint64_t dr3; 79 uint64_t dr6; 80 uint64_t dr7; 81 82 uint8_t cpl; 83 uint8_t user_only; 84 uint16_t padding1; 85 86 uint32_t error_code; /* error_code when exiting with an exception */ 87 uint64_t next_eip; /* next eip value when exiting with an interrupt */ 88 uint32_t nb_pages_to_flush; /* number of pages to flush, 89 KQEMU_FLUSH_ALL means full flush */ 90 #define KQEMU_MAX_PAGES_TO_FLUSH 512 91 #define KQEMU_FLUSH_ALL (KQEMU_MAX_PAGES_TO_FLUSH + 1) 92 93 int32_t retval; 94 95 /* number of ram_dirty entries to update */ 96 uint32_t nb_ram_pages_to_update; 97 #define KQEMU_MAX_RAM_PAGES_TO_UPDATE 512 98 #define KQEMU_RAM_PAGES_UPDATE_ALL (KQEMU_MAX_RAM_PAGES_TO_UPDATE + 1) 99 100 #define KQEMU_MAX_MODIFIED_RAM_PAGES 512 101 uint32_t nb_modified_ram_pages; 102 }; 103 104 struct kqemu_init { 105 uint8_t *ram_base; /* must be page aligned */ 106 KQEMU_PAD32(uint32_t padding1;) 107 uint64_t ram_size; /* must be multiple of 4 KB */ 108 uint8_t *ram_dirty; /* must be page aligned */ 109 KQEMU_PAD32(uint32_t padding2;) 110 uint64_t *pages_to_flush; /* must be page aligned */ 111 KQEMU_PAD32(uint32_t padding4;) 112 uint64_t *ram_pages_to_update; /* must be page aligned */ 113 KQEMU_PAD32(uint32_t padding5;) 114 uint64_t *modified_ram_pages; /* must be page aligned */ 115 KQEMU_PAD32(uint32_t padding6;) 116 }; 117 118 #define KQEMU_IO_MEM_RAM 0 119 #define KQEMU_IO_MEM_ROM 1 120 #define KQEMU_IO_MEM_COMM 2 /* kqemu communication page */ 121 #define KQEMU_IO_MEM_UNASSIGNED 3 /* any device: return to application */ 122 123 struct kqemu_phys_mem { 124 uint64_t phys_addr; /* physical address range: phys_addr, 125 phys_addr + size */ 126 uint64_t size; 127 uint64_t ram_addr; /* corresponding ram address */ 128 uint32_t io_index; /* memory type: see KQEMU_IO_MEM_xxx */ 129 uint32_t padding1; 130 }; 131 132 #define KQEMU_RET_ABORT (-1) 133 #define KQEMU_RET_EXCEPTION 0x0000 /* 8 low order bit are the exception */ 134 #define KQEMU_RET_INT 0x0100 /* 8 low order bit are the interrupt */ 135 #define KQEMU_RET_SOFTMMU 0x0200 /* emulation needed (I/O or 136 unsupported INSN) */ 137 #define KQEMU_RET_INTR 0x0201 /* interrupted by a signal */ 138 #define KQEMU_RET_SYSCALL 0x0300 /* syscall insn */ 139 140 #ifdef _WIN32 141 #define KQEMU_EXEC CTL_CODE(FILE_DEVICE_UNKNOWN, 1, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS) 142 #define KQEMU_INIT CTL_CODE(FILE_DEVICE_UNKNOWN, 2, METHOD_BUFFERED, FILE_WRITE_ACCESS) 143 #define KQEMU_GET_VERSION CTL_CODE(FILE_DEVICE_UNKNOWN, 3, METHOD_BUFFERED, FILE_READ_ACCESS) 144 #define KQEMU_MODIFY_RAM_PAGES CTL_CODE(FILE_DEVICE_UNKNOWN, 4, METHOD_BUFFERED, FILE_WRITE_ACCESS) 145 #define KQEMU_SET_PHYS_MEM CTL_CODE(FILE_DEVICE_UNKNOWN, 5, METHOD_BUFFERED, FILE_WRITE_ACCESS) 146 #else 147 #define KQEMU_EXEC _IOWR('q', 1, struct kqemu_cpu_state) 148 #define KQEMU_INIT _IOW('q', 2, struct kqemu_init) 149 #define KQEMU_GET_VERSION _IOR('q', 3, int) 150 #define KQEMU_MODIFY_RAM_PAGES _IOW('q', 4, int) 151 #define KQEMU_SET_PHYS_MEM _IOW('q', 5, struct kqemu_phys_mem) 152 #endif 153 154 #endif /* KQEMU_H */ 155