Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <unistd.h> |
| 4 | #include <sys/io.h> |
| 5 | #include <sys/mman.h> |
| 6 | #include <fcntl.h> |
| 7 | #include <getopt.h> |
Richard Smith | ff8c08e | 2006-04-23 19:16:09 +0000 | [diff] [blame] | 8 | #include <string.h> |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 9 | |
| 10 | #define die(x) { perror(x); exit(1); } |
Ronald G. Minnich | 284c27f | 2004-11-28 04:39:45 +0000 | [diff] [blame] | 11 | #define warn(x) { perror(x); } |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 12 | |
| 13 | #include <x86emu.h> |
Luc Verhaegen | e6e899d | 2009-05-27 11:39:16 +0000 | [diff] [blame] | 14 | #include "helper_exec.h" |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 15 | #include "test.h" |
| 16 | #include "pci-userspace.h" |
| 17 | |
| 18 | void x86emu_dump_xregs(void); |
| 19 | int int15_handler(void); |
| 20 | int int16_handler(void); |
| 21 | int int1A_handler(void); |
| 22 | #ifndef _PC |
| 23 | int int42_handler(void); |
| 24 | #endif |
| 25 | int intE6_handler(void); |
| 26 | |
| 27 | void pushw(u16 val); |
| 28 | |
Richard Smith | ff8c08e | 2006-04-23 19:16:09 +0000 | [diff] [blame] | 29 | unsigned short get_device(char *arg_val); |
| 30 | |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 31 | extern int teststart, testend; |
| 32 | |
| 33 | _ptr p; |
| 34 | ptr current = 0; |
| 35 | unsigned char biosmem[1024 * 1024]; |
| 36 | |
| 37 | int verbose = 0; |
| 38 | |
| 39 | |
| 40 | /* Interrupt multiplexer */ |
| 41 | |
| 42 | void do_int(int num) |
| 43 | { |
| 44 | int ret = 0; |
| 45 | |
| 46 | printf("int%x vector at %x\n", num, getIntVect(num)); |
| 47 | |
| 48 | /* This is a pInt leftover */ |
| 49 | current->num = num; |
| 50 | |
| 51 | switch (num) { |
| 52 | #ifndef _PC |
| 53 | case 0x10: |
| 54 | case 0x42: |
| 55 | case 0x6D: |
| 56 | |
| 57 | if (getIntVect(num) == 0xFF065) { |
| 58 | ret = int42_handler(); |
| 59 | } |
| 60 | break; |
| 61 | #endif |
| 62 | case 0x15: |
| 63 | ret = int15_handler(); |
| 64 | break; |
| 65 | case 0x16: |
| 66 | ret = int16_handler(); |
| 67 | break; |
| 68 | case 0x1A: |
| 69 | ret = int1A_handler(); |
| 70 | break; |
| 71 | case 0xe6: |
| 72 | ret = intE6_handler(); |
| 73 | break; |
| 74 | default: |
| 75 | break; |
| 76 | } |
| 77 | |
| 78 | if (!ret) |
| 79 | ret = run_bios_int(num); |
| 80 | |
| 81 | if (!ret) { |
| 82 | printf("\nint%x: not implemented\n", num); |
Li-Ta Lo | 8b0356c | 2005-01-11 03:18:39 +0000 | [diff] [blame] | 83 | //x86emu_dump_xregs(); |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 84 | } |
| 85 | } |
| 86 | |
| 87 | unsigned char *mapitin(char *file, off_t where, size_t size) |
| 88 | { |
| 89 | void *z; |
| 90 | |
| 91 | int fd = open(file, O_RDWR, 0); |
| 92 | |
| 93 | if (fd < 0) |
| 94 | die(file); |
| 95 | z = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, where); |
| 96 | if (z == (void *) -1) |
| 97 | die("mmap"); |
| 98 | close(fd); |
| 99 | |
| 100 | return z; |
| 101 | |
| 102 | } |
| 103 | |
| 104 | u8 x_inb(u16 port); |
| 105 | u16 x_inw(u16 port); |
| 106 | void x_outb(u16 port, u8 val); |
| 107 | void x_outw(u16 port, u16 val); |
| 108 | u32 x_inl(u16 port); |
| 109 | void x_outl(u16 port, u32 val); |
| 110 | |
| 111 | |
| 112 | X86EMU_pioFuncs myfuncs = { |
| 113 | x_inb, x_inw, x_inl, |
| 114 | x_outb, x_outw, x_outl |
| 115 | }; |
| 116 | |
| 117 | |
| 118 | void usage(char *name) |
| 119 | { |
| 120 | printf |
| 121 | ("Usage: %s [-c codesegment] [-s size] [-b base] [-i ip] [-t] <filename> ... \n", |
| 122 | name); |
| 123 | } |
| 124 | |
| 125 | int main(int argc, char **argv) |
| 126 | { |
| 127 | char *absegname = 0; |
| 128 | void *abseg = 0; |
| 129 | int i, c, trace = 0; |
| 130 | unsigned char *cp; |
| 131 | char *filename; |
| 132 | size_t size = 0; |
| 133 | int base = 0; |
| 134 | int have_size = 0, have_base = 0, have_ip = 0, have_cs = 0; |
Richard Smith | ff8c08e | 2006-04-23 19:16:09 +0000 | [diff] [blame] | 135 | int have_devfn = 0; |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 136 | int parse_rom = 0; |
| 137 | char *fsegname = 0; |
| 138 | unsigned char *fsegptr; |
| 139 | unsigned short initialip = 0, initialcs = 0, devfn = 0; |
| 140 | X86EMU_intrFuncs intFuncs[256]; |
| 141 | void X86EMU_setMemBase(void *base, size_t size); |
| 142 | void X86EMU_setabseg(void *abseg); |
| 143 | void x86emu_dump_xregs(void); |
| 144 | int X86EMU_set_debug(int debug); |
| 145 | int debugflag = 0; |
| 146 | |
| 147 | const char *optstring = "vh?b:i:c:s:tpd:"; |
| 148 | while (1) { |
| 149 | int option_index = 0; |
| 150 | static struct option long_options[] = { |
| 151 | {"verbose", 0, 0, 'v'}, |
| 152 | {"help", 0, 0, 'h'}, |
| 153 | {"trace", 0, 0, 't'}, |
| 154 | {"base", 1, 0, 'b'}, |
| 155 | {"fseg", 1, 0, 'f'}, |
| 156 | {"instructionpointer", 1, 0, 'i'}, |
| 157 | {"codesegment", 1, 0, 'c'}, |
| 158 | {"absegment", 1, 0, 'a'}, |
| 159 | {"size", 1, 0, 's'}, |
| 160 | {"parserom", 0, 0, 'p'}, |
| 161 | {"device", 1, 0, 'd'}, |
| 162 | {"debug", 1, 0, 'D'}, |
| 163 | {0, 0, 0, 0} |
| 164 | }; |
| 165 | c = getopt_long(argc, argv, optstring, long_options, &option_index); |
| 166 | if (c == -1) |
| 167 | break; |
| 168 | switch (c) { |
| 169 | case 'v': |
| 170 | verbose = 1; |
| 171 | break; |
| 172 | case 'h': |
| 173 | case '?': |
| 174 | usage(argv[0]); |
| 175 | return 0; |
| 176 | case 't': |
| 177 | trace = 1; |
| 178 | break; |
| 179 | case 'b': |
| 180 | base = strtol(optarg, 0, 0); |
| 181 | have_base = 1; |
| 182 | break; |
| 183 | case 'i': |
| 184 | initialip = strtol(optarg, 0, 0); |
| 185 | have_ip = 1; |
| 186 | break; |
| 187 | case 'c': |
| 188 | initialcs = strtol(optarg, 0, 0); |
| 189 | have_cs = 1; |
| 190 | break; |
| 191 | case 's': |
| 192 | size = strtol(optarg, 0, 0); |
| 193 | have_size = 1; |
| 194 | break; |
| 195 | case 'p': |
| 196 | printf("Parsing rom images not implemented.\n"); |
| 197 | parse_rom = 1; |
| 198 | break; |
| 199 | case 'f': |
| 200 | fsegname = optarg; |
| 201 | break; |
| 202 | case 'a': |
| 203 | absegname = optarg; |
| 204 | break; |
| 205 | case 'd': |
Richard Smith | ff8c08e | 2006-04-23 19:16:09 +0000 | [diff] [blame] | 206 | devfn = get_device(optarg); |
| 207 | have_devfn = 1; |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 208 | break; |
| 209 | case 'D': |
| 210 | debugflag = strtol(optarg, 0, 0); |
| 211 | break; |
| 212 | default: |
| 213 | printf("Unknown option \n"); |
| 214 | usage(argv[0]); |
| 215 | return 1; |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | if (optind >= argc) { |
| 220 | printf("Filename missing.\n"); |
| 221 | usage(argv[0]); |
| 222 | return 1; |
| 223 | } |
| 224 | |
| 225 | while (optind < argc) { |
| 226 | printf("running file %s\n", argv[optind]); |
| 227 | filename = argv[optind]; |
| 228 | optind++; |
| 229 | /* normally we would do continue, but for |
| 230 | * now only one filename is supported. |
| 231 | */ |
| 232 | /* continue; */ |
| 233 | break; |
| 234 | } |
| 235 | |
| 236 | if (!have_size) { |
| 237 | printf("No size specified. defaulting to 32k\n"); |
| 238 | size = 32 * 1024; |
| 239 | } |
| 240 | if (!have_base) { |
| 241 | printf("No base specified. defaulting to 0xc0000\n"); |
| 242 | base = 0xc0000; |
| 243 | } |
| 244 | if (!have_cs) { |
| 245 | printf("No initial code segment specified. defaulting to 0xc000\n"); |
| 246 | initialcs = 0xc000; |
| 247 | } |
| 248 | if (!have_ip) { |
| 249 | printf |
| 250 | ("No initial instruction pointer specified. defaulting to 0x0003\n"); |
| 251 | initialip = 0x0003; |
| 252 | } |
| 253 | |
| 254 | //printf("Point 1 int%x vector at %x\n", 0x42, getIntVect(0x42)); |
| 255 | |
Richard Smith | ff8c08e | 2006-04-23 19:16:09 +0000 | [diff] [blame] | 256 | if (initialip == 0x0003) { |
| 257 | if ((devfn == 0) || (have_devfn == 0)) { |
| 258 | printf("WARNING! It appears you are trying to run an option ROM.\n"); |
| 259 | printf(" (initial ip = 0x0003)\n"); |
| 260 | if (have_devfn) { |
| 261 | printf(" However, the device you have specified is 0x00\n"); |
| 262 | printf(" It is very unlikely that your device is at this address\n"); |
| 263 | printf(" Please check your -d option\n"); |
| 264 | } |
| 265 | else { |
| 266 | printf(" Please specify a device with -d\n"); |
| 267 | printf(" The default is not likely to work\n"); |
| 268 | } |
| 269 | } |
| 270 | } |
| 271 | |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 272 | if (absegname) { |
| 273 | abseg = mapitin(absegname, (off_t) 0xa0000, 0x20000); |
| 274 | if (!abseg) |
| 275 | die(absegname); |
| 276 | } |
| 277 | |
| 278 | current = &p; |
| 279 | X86EMU_setMemBase(biosmem, sizeof(biosmem)); |
| 280 | X86EMU_setabseg(abseg); |
| 281 | X86EMU_setupPioFuncs(&myfuncs); |
| 282 | ioperm(0, 0x400, 1); |
| 283 | |
Ronald G. Minnich | 284c27f | 2004-11-28 04:39:45 +0000 | [diff] [blame] | 284 | if (iopl(3) < 0) { |
| 285 | warn("iopl failed, continuing anyway"); |
| 286 | } |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 287 | |
| 288 | /* Emergency sync ;-) */ |
| 289 | sync(); |
| 290 | sync(); |
| 291 | |
| 292 | /* Setting up interrupt environment. |
| 293 | * basically this means initializing PCI and |
| 294 | * intXX handlers. |
| 295 | */ |
| 296 | pciInit(); |
| 297 | |
| 298 | for (i = 0; i < 256; i++) |
| 299 | intFuncs[i] = do_int; |
| 300 | X86EMU_setupIntrFuncs(intFuncs); |
| 301 | cp = mapitin(filename, (off_t) 0, size); |
| 302 | |
Richard Smith | ff8c08e | 2006-04-23 19:16:09 +0000 | [diff] [blame] | 303 | if (devfn) { |
| 304 | printf("Loading ax with BusDevFn = %x\n",devfn); |
| 305 | } |
| 306 | |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 307 | current->ax = devfn ? devfn : 0xff; |
| 308 | current->dx = 0x80; |
| 309 | // current->ip = 0; |
| 310 | for (i = 0; i < size; i++) |
| 311 | wrb(base + i, cp[i]); |
| 312 | |
| 313 | if (fsegname) { |
| 314 | fsegptr = mapitin(fsegname, (off_t) 0, 0x10000); |
| 315 | for (i = 0; i < 0x10000; i++) |
| 316 | wrb(0xf0000 + i, fsegptr[i]); |
| 317 | } else { |
| 318 | char *date = "01/01/99"; |
| 319 | for (i = i; date[i]; i++) |
| 320 | wrb(0xffff5 + i, date[i]); |
| 321 | wrb(0xffff7, '/'); |
| 322 | wrb(0xffffa, '/'); |
| 323 | } |
| 324 | /* cpu setup */ |
| 325 | X86_AX = devfn ? devfn : 0xff; |
| 326 | X86_DX = 0x80; |
| 327 | X86_EIP = initialip; |
| 328 | X86_CS = initialcs; |
| 329 | |
| 330 | /* Initialize stack and data segment */ |
| 331 | X86_SS = 0x0030; |
| 332 | X86_DS = 0x0040; |
| 333 | X86_SP = 0xfffe; |
| 334 | /* We need a sane way to return from bios |
| 335 | * execution. A hlt instruction and a pointer |
| 336 | * to it, both kept on the stack, will do. |
| 337 | */ |
| 338 | pushw(0xf4f4); /* hlt; hlt */ |
| 339 | pushw(X86_SS); |
| 340 | pushw(X86_SP + 2); |
| 341 | |
| 342 | X86_ES = 0x0000; |
| 343 | |
| 344 | if (trace) { |
| 345 | printf("Switching to single step mode.\n"); |
Li-Ta Lo | 8b0356c | 2005-01-11 03:18:39 +0000 | [diff] [blame] | 346 | //X86EMU_trace_on(); |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 347 | } |
| 348 | if (debugflag) { |
Li-Ta Lo | 8b0356c | 2005-01-11 03:18:39 +0000 | [diff] [blame] | 349 | //X86EMU_set_debug(debugflag); |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 350 | } |
| 351 | X86EMU_exec(); |
| 352 | /* Cleaning up */ |
| 353 | pciExit(); |
| 354 | |
| 355 | return 0; |
| 356 | } |
Richard Smith | ff8c08e | 2006-04-23 19:16:09 +0000 | [diff] [blame] | 357 | |
| 358 | unsigned short get_device(char *arg_val) |
| 359 | { |
| 360 | unsigned short devfn=0; |
| 361 | long bus=0,dev=0,fn=0,need_pack=0; |
| 362 | char *tok; |
| 363 | |
| 364 | tok = strsep(&arg_val,":"); |
| 365 | if (arg_val != NULL) { |
| 366 | bus = strtol(tok,0,16); |
| 367 | need_pack = 1; |
| 368 | } |
| 369 | else { |
| 370 | arg_val = tok; |
| 371 | } |
| 372 | |
| 373 | tok = strsep(&arg_val,"."); |
| 374 | if (arg_val != NULL) { |
| 375 | dev = strtol(tok,0,16); |
| 376 | fn = strtol(arg_val,0,16); |
| 377 | need_pack = 1; |
| 378 | } |
| 379 | else { |
| 380 | if (need_pack ==1 && (strlen(tok))) { |
| 381 | dev = strtol(tok,0,16); |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | if ( need_pack == 1) { |
| 386 | devfn = bus<<8 | (dev<<3) | fn; |
| 387 | } |
| 388 | else { |
| 389 | devfn = strtol(tok, 0, 0); |
| 390 | } |
| 391 | |
| 392 | |
| 393 | return devfn; |
| 394 | } |
| 395 | |