emul.c revision 1.16.2.3
1 1.16.2.3 jmcneill /* $NetBSD: emul.c,v 1.16.2.3 2007/11/04 21:03:47 jmcneill Exp $ */ 2 1.16.2.2 joerg 3 1.16.2.2 joerg /* 4 1.16.2.2 joerg * Copyright (c) 2007 Antti Kantee. All Rights Reserved. 5 1.16.2.2 joerg * 6 1.16.2.2 joerg * Development of this software was supported by Google Summer of Code. 7 1.16.2.2 joerg * 8 1.16.2.2 joerg * Redistribution and use in source and binary forms, with or without 9 1.16.2.2 joerg * modification, are permitted provided that the following conditions 10 1.16.2.2 joerg * are met: 11 1.16.2.2 joerg * 1. Redistributions of source code must retain the above copyright 12 1.16.2.2 joerg * notice, this list of conditions and the following disclaimer. 13 1.16.2.2 joerg * 2. Redistributions in binary form must reproduce the above copyright 14 1.16.2.2 joerg * notice, this list of conditions and the following disclaimer in the 15 1.16.2.2 joerg * documentation and/or other materials provided with the distribution. 16 1.16.2.2 joerg * 17 1.16.2.2 joerg * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 18 1.16.2.2 joerg * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 1.16.2.2 joerg * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 1.16.2.2 joerg * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 1.16.2.2 joerg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 1.16.2.2 joerg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 23 1.16.2.2 joerg * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 1.16.2.2 joerg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 1.16.2.2 joerg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 1.16.2.2 joerg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 1.16.2.2 joerg * SUCH DAMAGE. 28 1.16.2.2 joerg */ 29 1.16.2.2 joerg 30 1.16.2.2 joerg #define malloc(a,b,c) __wrap_malloc(a,b,c) 31 1.16.2.2 joerg 32 1.16.2.2 joerg #include <sys/param.h> 33 1.16.2.2 joerg #include <sys/malloc.h> 34 1.16.2.2 joerg #include <sys/null.h> 35 1.16.2.2 joerg #include <sys/vnode.h> 36 1.16.2.2 joerg #include <sys/stat.h> 37 1.16.2.2 joerg #include <sys/syslog.h> 38 1.16.2.2 joerg #include <sys/namei.h> 39 1.16.2.2 joerg #include <sys/kauth.h> 40 1.16.2.2 joerg #include <sys/conf.h> 41 1.16.2.2 joerg #include <sys/device.h> 42 1.16.2.2 joerg #include <sys/queue.h> 43 1.16.2.2 joerg #include <sys/filedesc.h> 44 1.16.2.2 joerg #include <sys/kthread.h> 45 1.16.2.2 joerg #include <sys/cpu.h> 46 1.16.2.2 joerg #include <sys/kmem.h> 47 1.16.2.2 joerg 48 1.16.2.2 joerg #include <machine/stdarg.h> 49 1.16.2.2 joerg 50 1.16.2.2 joerg #include <uvm/uvm_map.h> 51 1.16.2.2 joerg 52 1.16.2.2 joerg #include "rump_private.h" 53 1.16.2.2 joerg #include "rumpuser.h" 54 1.16.2.2 joerg 55 1.16.2.2 joerg #ifdef __HAVE_TIMECOUNTER 56 1.16.2.2 joerg time_t time_second = 1; 57 1.16.2.2 joerg #else 58 1.16.2.2 joerg volatile struct timeval time = { 1, 0 }; 59 1.16.2.2 joerg #endif 60 1.16.2.2 joerg 61 1.16.2.2 joerg kmutex_t proclist_mutex; 62 1.16.2.2 joerg kmutex_t proclist_lock; 63 1.16.2.2 joerg struct lwp lwp0; 64 1.16.2.2 joerg struct vnode *rootvp; 65 1.16.2.2 joerg struct device *root_device; 66 1.16.2.2 joerg dev_t rootdev; 67 1.16.2.2 joerg struct vm_map *kernel_map; 68 1.16.2.2 joerg int physmem; 69 1.16.2.2 joerg int doing_shutdown; 70 1.16.2.2 joerg int ncpu = 1; 71 1.16.2.2 joerg 72 1.16.2.2 joerg MALLOC_DEFINE(M_MOUNT, "mount", "vfs mount struct"); 73 1.16.2.2 joerg MALLOC_DEFINE(M_UFSMNT, "UFS mount", "UFS mount structure"); 74 1.16.2.2 joerg MALLOC_DEFINE(M_TEMP, "temp", "misc. temporary data buffers"); 75 1.16.2.2 joerg MALLOC_DEFINE(M_DEVBUF, "devbuf", "device driver memory"); 76 1.16.2.2 joerg MALLOC_DEFINE(M_VNODE, "vnodes", "Dynamically allocated vnodes"); 77 1.16.2.2 joerg 78 1.16.2.2 joerg char hostname[MAXHOSTNAMELEN]; 79 1.16.2.2 joerg size_t hostnamelen; 80 1.16.2.2 joerg 81 1.16.2.2 joerg u_long bufmem_valimit; 82 1.16.2.2 joerg u_long bufmem_hiwater; 83 1.16.2.2 joerg u_long bufmem_lowater; 84 1.16.2.2 joerg u_long bufmem; 85 1.16.2.2 joerg u_int nbuf; 86 1.16.2.2 joerg 87 1.16.2.2 joerg const char *panicstr; 88 1.16.2.2 joerg 89 1.16.2.2 joerg void 90 1.16.2.2 joerg panic(const char *fmt, ...) 91 1.16.2.2 joerg { 92 1.16.2.2 joerg va_list ap; 93 1.16.2.2 joerg 94 1.16.2.2 joerg va_start(ap, fmt); 95 1.16.2.2 joerg vprintf(fmt, ap); 96 1.16.2.2 joerg va_end(ap); 97 1.16.2.2 joerg printf("\n"); 98 1.16.2.2 joerg abort(); 99 1.16.2.2 joerg } 100 1.16.2.2 joerg 101 1.16.2.2 joerg void 102 1.16.2.2 joerg log(int level, const char *fmt, ...) 103 1.16.2.2 joerg { 104 1.16.2.2 joerg va_list ap; 105 1.16.2.2 joerg 106 1.16.2.2 joerg va_start(ap, fmt); 107 1.16.2.2 joerg vprintf(fmt, ap); 108 1.16.2.2 joerg va_end(ap); 109 1.16.2.2 joerg } 110 1.16.2.2 joerg 111 1.16.2.2 joerg void 112 1.16.2.2 joerg uprintf(const char *fmt, ...) 113 1.16.2.2 joerg { 114 1.16.2.2 joerg va_list ap; 115 1.16.2.2 joerg 116 1.16.2.2 joerg va_start(ap, fmt); 117 1.16.2.2 joerg vprintf(fmt, ap); 118 1.16.2.2 joerg va_end(ap); 119 1.16.2.2 joerg } 120 1.16.2.2 joerg 121 1.16.2.2 joerg void 122 1.16.2.2 joerg printf_nolog(const char *fmt, ...) 123 1.16.2.2 joerg { 124 1.16.2.2 joerg va_list ap; 125 1.16.2.2 joerg 126 1.16.2.2 joerg va_start(ap, fmt); 127 1.16.2.2 joerg vprintf(fmt, ap); 128 1.16.2.2 joerg va_end(ap); 129 1.16.2.2 joerg } 130 1.16.2.2 joerg 131 1.16.2.2 joerg int 132 1.16.2.2 joerg copyin(const void *uaddr, void *kaddr, size_t len) 133 1.16.2.2 joerg { 134 1.16.2.2 joerg 135 1.16.2.2 joerg memcpy(kaddr, uaddr, len); 136 1.16.2.2 joerg return 0; 137 1.16.2.2 joerg } 138 1.16.2.2 joerg 139 1.16.2.2 joerg int 140 1.16.2.2 joerg copyout(const void *kaddr, void *uaddr, size_t len) 141 1.16.2.2 joerg { 142 1.16.2.2 joerg 143 1.16.2.2 joerg memcpy(uaddr, kaddr, len); 144 1.16.2.2 joerg return 0; 145 1.16.2.2 joerg } 146 1.16.2.2 joerg 147 1.16.2.2 joerg int 148 1.16.2.2 joerg copystr(const void *kfaddr, void *kdaddr, size_t len, size_t *done) 149 1.16.2.2 joerg { 150 1.16.2.2 joerg 151 1.16.2.2 joerg return copyinstr(kfaddr, kdaddr, len, done); 152 1.16.2.2 joerg } 153 1.16.2.2 joerg 154 1.16.2.2 joerg int 155 1.16.2.2 joerg copyinstr(const void *uaddr, void *kaddr, size_t len, size_t *done) 156 1.16.2.2 joerg { 157 1.16.2.2 joerg 158 1.16.2.2 joerg strlcpy(kaddr, uaddr, len); 159 1.16.2.2 joerg *done = strlen(kaddr); 160 1.16.2.2 joerg return 0; 161 1.16.2.2 joerg } 162 1.16.2.2 joerg 163 1.16.2.2 joerg int 164 1.16.2.2 joerg uiomove(void *buf, size_t n, struct uio *uio) 165 1.16.2.2 joerg { 166 1.16.2.2 joerg struct iovec *iov; 167 1.16.2.2 joerg uint8_t *b = buf; 168 1.16.2.2 joerg size_t cnt; 169 1.16.2.2 joerg int rv; 170 1.16.2.2 joerg 171 1.16.2.2 joerg if (uio->uio_vmspace != UIO_VMSPACE_SYS) 172 1.16.2.2 joerg panic("%s: vmspace != UIO_VMSPACE_SYS", __func__); 173 1.16.2.2 joerg 174 1.16.2.2 joerg /* 175 1.16.2.2 joerg * See if rump ubc code claims the offset. This is of course 176 1.16.2.2 joerg * a blatant violation of abstraction levels, but let's keep 177 1.16.2.2 joerg * me simple & stupid for now. 178 1.16.2.2 joerg */ 179 1.16.2.3 jmcneill if (rump_ubc_magic_uiomove(buf, n, uio, &rv, NULL)) 180 1.16.2.2 joerg return rv; 181 1.16.2.2 joerg 182 1.16.2.2 joerg while (n && uio->uio_resid) { 183 1.16.2.2 joerg iov = uio->uio_iov; 184 1.16.2.2 joerg cnt = iov->iov_len; 185 1.16.2.2 joerg if (cnt == 0) { 186 1.16.2.2 joerg uio->uio_iov++; 187 1.16.2.2 joerg uio->uio_iovcnt--; 188 1.16.2.2 joerg continue; 189 1.16.2.2 joerg } 190 1.16.2.2 joerg if (cnt > n) 191 1.16.2.2 joerg cnt = n; 192 1.16.2.2 joerg 193 1.16.2.2 joerg if (uio->uio_rw == UIO_READ) 194 1.16.2.2 joerg memcpy(iov->iov_base, b, cnt); 195 1.16.2.2 joerg else 196 1.16.2.2 joerg memcpy(b, iov->iov_base, cnt); 197 1.16.2.2 joerg 198 1.16.2.2 joerg iov->iov_base = (uint8_t *)iov->iov_base + cnt; 199 1.16.2.2 joerg iov->iov_len -= cnt; 200 1.16.2.2 joerg b += cnt; 201 1.16.2.2 joerg uio->uio_resid -= cnt; 202 1.16.2.2 joerg uio->uio_offset += cnt; 203 1.16.2.2 joerg n -= cnt; 204 1.16.2.2 joerg } 205 1.16.2.2 joerg 206 1.16.2.2 joerg return 0; 207 1.16.2.2 joerg } 208 1.16.2.2 joerg 209 1.16.2.2 joerg void 210 1.16.2.2 joerg uio_setup_sysspace(struct uio *uio) 211 1.16.2.2 joerg { 212 1.16.2.2 joerg 213 1.16.2.2 joerg uio->uio_vmspace = UIO_VMSPACE_SYS; 214 1.16.2.2 joerg } 215 1.16.2.2 joerg 216 1.16.2.2 joerg const struct bdevsw * 217 1.16.2.2 joerg bdevsw_lookup(dev_t dev) 218 1.16.2.2 joerg { 219 1.16.2.2 joerg 220 1.16.2.2 joerg return (const struct bdevsw *)1; 221 1.16.2.2 joerg } 222 1.16.2.2 joerg 223 1.16.2.2 joerg devclass_t 224 1.16.2.2 joerg device_class(device_t dev) 225 1.16.2.2 joerg { 226 1.16.2.2 joerg 227 1.16.2.2 joerg if (dev != root_device) 228 1.16.2.2 joerg panic("%s: dev != root_device not supported", __func__); 229 1.16.2.2 joerg 230 1.16.2.2 joerg return DV_DISK; 231 1.16.2.2 joerg } 232 1.16.2.2 joerg 233 1.16.2.2 joerg void 234 1.16.2.2 joerg getmicrouptime(struct timeval *tvp) 235 1.16.2.2 joerg { 236 1.16.2.2 joerg int error; 237 1.16.2.2 joerg 238 1.16.2.2 joerg rumpuser_gettimeofday(tvp, &error); 239 1.16.2.2 joerg } 240 1.16.2.2 joerg 241 1.16.2.2 joerg void 242 1.16.2.2 joerg malloc_type_attach(struct malloc_type *type) 243 1.16.2.2 joerg { 244 1.16.2.2 joerg 245 1.16.2.2 joerg return; 246 1.16.2.2 joerg } 247 1.16.2.2 joerg 248 1.16.2.2 joerg void 249 1.16.2.2 joerg malloc_type_detach(struct malloc_type *type) 250 1.16.2.2 joerg { 251 1.16.2.2 joerg 252 1.16.2.2 joerg return; 253 1.16.2.2 joerg } 254 1.16.2.2 joerg 255 1.16.2.2 joerg void * 256 1.16.2.2 joerg __wrap_malloc(unsigned long size, struct malloc_type *type, int flags) 257 1.16.2.2 joerg { 258 1.16.2.2 joerg void *rv; 259 1.16.2.2 joerg 260 1.16.2.2 joerg rv = rumpuser_malloc(size, (flags & (M_CANFAIL | M_NOWAIT)) != 0); 261 1.16.2.2 joerg if (rv && flags & M_ZERO) 262 1.16.2.2 joerg memset(rv, 0, size); 263 1.16.2.2 joerg 264 1.16.2.2 joerg return rv; 265 1.16.2.2 joerg } 266 1.16.2.2 joerg 267 1.16.2.2 joerg void 268 1.16.2.2 joerg nanotime(struct timespec *ts) 269 1.16.2.2 joerg { 270 1.16.2.2 joerg struct timeval tv; 271 1.16.2.2 joerg int error; 272 1.16.2.2 joerg 273 1.16.2.2 joerg rumpuser_gettimeofday(&tv, &error); 274 1.16.2.2 joerg TIMEVAL_TO_TIMESPEC(&tv, ts); 275 1.16.2.2 joerg } 276 1.16.2.2 joerg 277 1.16.2.2 joerg /* hooray for mick, so what if I do */ 278 1.16.2.2 joerg void 279 1.16.2.2 joerg getnanotime(struct timespec *ts) 280 1.16.2.2 joerg { 281 1.16.2.2 joerg 282 1.16.2.2 joerg nanotime(ts); 283 1.16.2.2 joerg } 284 1.16.2.2 joerg 285 1.16.2.2 joerg void 286 1.16.2.2 joerg microtime(struct timeval *tv) 287 1.16.2.2 joerg { 288 1.16.2.2 joerg int error; 289 1.16.2.2 joerg 290 1.16.2.2 joerg rumpuser_gettimeofday(tv, &error); 291 1.16.2.2 joerg } 292 1.16.2.2 joerg 293 1.16.2.2 joerg void 294 1.16.2.2 joerg getmicrotime(struct timeval *tv) 295 1.16.2.2 joerg { 296 1.16.2.2 joerg int error; 297 1.16.2.2 joerg 298 1.16.2.2 joerg rumpuser_gettimeofday(tv, &error); 299 1.16.2.2 joerg } 300 1.16.2.2 joerg 301 1.16.2.2 joerg void 302 1.16.2.2 joerg bdev_strategy(struct buf *bp) 303 1.16.2.2 joerg { 304 1.16.2.2 joerg 305 1.16.2.2 joerg panic("%s: not supported", __func__); 306 1.16.2.2 joerg } 307 1.16.2.2 joerg 308 1.16.2.2 joerg int 309 1.16.2.2 joerg bdev_type(dev_t dev) 310 1.16.2.2 joerg { 311 1.16.2.2 joerg 312 1.16.2.2 joerg return D_DISK; 313 1.16.2.2 joerg } 314 1.16.2.2 joerg 315 1.16.2.2 joerg struct kthdesc { 316 1.16.2.2 joerg void (*f)(void *); 317 1.16.2.2 joerg void *arg; 318 1.16.2.2 joerg struct lwp *mylwp; 319 1.16.2.2 joerg }; 320 1.16.2.2 joerg 321 1.16.2.2 joerg static lwpid_t curlid = 2; 322 1.16.2.2 joerg 323 1.16.2.2 joerg static void * 324 1.16.2.2 joerg threadbouncer(void *arg) 325 1.16.2.2 joerg { 326 1.16.2.2 joerg struct kthdesc *k = arg; 327 1.16.2.2 joerg void (*f)(void *); 328 1.16.2.2 joerg void *thrarg; 329 1.16.2.2 joerg 330 1.16.2.2 joerg f = k->f; 331 1.16.2.2 joerg thrarg = k->arg; 332 1.16.2.2 joerg rumpuser_set_curlwp(k->mylwp); 333 1.16.2.2 joerg kmem_free(k, sizeof(struct kthdesc)); 334 1.16.2.2 joerg 335 1.16.2.2 joerg f(thrarg); 336 1.16.2.2 joerg panic("unreachable, should kthread_exit()"); 337 1.16.2.2 joerg } 338 1.16.2.2 joerg 339 1.16.2.2 joerg int 340 1.16.2.2 joerg kthread_create(pri_t pri, int flags, struct cpu_info *ci, 341 1.16.2.2 joerg void (*func)(void *), void *arg, lwp_t **newlp, const char *fmt, ...) 342 1.16.2.2 joerg { 343 1.16.2.2 joerg struct kthdesc *k; 344 1.16.2.2 joerg struct lwp *l; 345 1.16.2.2 joerg int rv; 346 1.16.2.2 joerg 347 1.16.2.2 joerg KASSERT(fmt != NULL); 348 1.16.2.2 joerg if (ci != NULL) 349 1.16.2.2 joerg panic("%s: bounded threads not supported", __func__); 350 1.16.2.2 joerg 351 1.16.2.2 joerg k = kmem_alloc(sizeof(struct kthdesc), KM_SLEEP); 352 1.16.2.2 joerg k->f = func; 353 1.16.2.2 joerg k->arg = arg; 354 1.16.2.2 joerg k->mylwp = l = rump_setup_curlwp(0, curlid++, 0); 355 1.16.2.2 joerg rv = rumpuser_thread_create(threadbouncer, k); 356 1.16.2.2 joerg if (rv) 357 1.16.2.2 joerg return rv; 358 1.16.2.2 joerg 359 1.16.2.2 joerg if (newlp) 360 1.16.2.2 joerg *newlp = l; 361 1.16.2.2 joerg return 0; 362 1.16.2.2 joerg } 363 1.16.2.2 joerg 364 1.16.2.2 joerg void 365 1.16.2.2 joerg kthread_exit(int ecode) 366 1.16.2.2 joerg { 367 1.16.2.2 joerg 368 1.16.2.2 joerg rumpuser_thread_exit(); 369 1.16.2.2 joerg } 370 1.16.2.2 joerg 371 1.16.2.2 joerg void 372 1.16.2.2 joerg callout_init(callout_t *c, u_int flags) 373 1.16.2.2 joerg { 374 1.16.2.2 joerg 375 1.16.2.2 joerg panic("%s: not implemented", __func__); 376 1.16.2.2 joerg } 377 1.16.2.2 joerg 378 1.16.2.2 joerg void 379 1.16.2.2 joerg callout_reset(callout_t *c, int ticks, void (*func)(void *), void *arg) 380 1.16.2.2 joerg { 381 1.16.2.2 joerg 382 1.16.2.2 joerg panic("%s: not implemented", __func__); 383 1.16.2.2 joerg } 384 1.16.2.2 joerg 385 1.16.2.2 joerg bool 386 1.16.2.2 joerg callout_stop(callout_t *c) 387 1.16.2.2 joerg { 388 1.16.2.2 joerg 389 1.16.2.2 joerg panic("%s: not implemented", __func__); 390 1.16.2.2 joerg } 391
Indexes created Thu Oct 02 10:09:58 GMT 2025