debuggers.hg

annotate tools/libxl/libxl.c @ 20834:675443b02c53

libxenlight: remove ctx dangerously passed to children

apart from ctx->waitpid, it's potentially harmful to call into
logging.

Signed-off-by: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Tue Jan 12 07:06:12 2010 +0000 (2010-01-12)
parents da6cddd20000
children 517364d0823d
rev   line source
keir@20462 1 /*
keir@20462 2 * Copyright (C) 2009 Citrix Ltd.
keir@20462 3 * Author Vincent Hanquez <vincent.hanquez@eu.citrix.com>
keir@20462 4 * Author Stefano Stabellini <stefano.stabellini@eu.citrix.com>
keir@20462 5 *
keir@20462 6 * This program is free software; you can redistribute it and/or modify
keir@20462 7 * it under the terms of the GNU Lesser General Public License as published
keir@20462 8 * by the Free Software Foundation; version 2.1 only. with the special
keir@20462 9 * exception on linking described in file LICENSE.
keir@20462 10 *
keir@20462 11 * This program is distributed in the hope that it will be useful,
keir@20462 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
keir@20462 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
keir@20462 14 * GNU Lesser General Public License for more details.
keir@20462 15 */
keir@20462 16
keir@20513 17 #include "libxl_osdeps.h"
keir@20513 18
keir@20462 19 #include <stdio.h>
keir@20462 20 #include <string.h>
keir@20462 21 #include <stdlib.h>
keir@20462 22 #include <sys/types.h>
keir@20462 23 #include <fcntl.h>
keir@20462 24 #include <sys/select.h>
keir@20514 25 #include <sys/wait.h>
keir@20462 26 #include <signal.h>
keir@20468 27 #include <unistd.h> /* for write, unlink and close */
keir@20509 28 #include <stdint.h>
keir@20509 29 #include <inttypes.h>
keir@20514 30 #include <assert.h>
keir@20513 31
keir@20462 32 #include "libxl.h"
keir@20462 33 #include "libxl_utils.h"
keir@20462 34 #include "libxl_internal.h"
keir@20462 35 #include "flexarray.h"
keir@20462 36
keir@20788 37 int libxl_ctx_init(struct libxl_ctx *ctx, int version)
keir@20462 38 {
keir@20788 39 if (version != LIBXL_VERSION)
keir@20788 40 return ERROR_VERSION;
keir@20462 41 memset(ctx, 0, sizeof(struct libxl_ctx));
keir@20462 42 ctx->alloc_maxsize = 256;
keir@20462 43 ctx->alloc_ptrs = calloc(ctx->alloc_maxsize, sizeof(void *));
keir@20462 44 if (!ctx->alloc_ptrs)
keir@20462 45 return ERROR_NOMEM;
keir@20462 46
keir@20462 47 ctx->xch = xc_interface_open();
keir@20819 48 if (ctx->xch == -1) {
keir@20819 49 free(ctx->alloc_ptrs);
keir@20819 50 return ERROR_FAIL;
keir@20819 51 }
keir@20819 52
keir@20462 53 ctx->xsh = xs_daemon_open();
keir@20819 54 if (!ctx->xsh) {
keir@20819 55 xc_interface_close(ctx->xch);
keir@20819 56 free(ctx->alloc_ptrs);
keir@20819 57 return ERROR_FAIL;
keir@20819 58 }
keir@20462 59 return 0;
keir@20462 60 }
keir@20462 61
keir@20462 62 int libxl_ctx_free(struct libxl_ctx *ctx)
keir@20462 63 {
keir@20462 64 libxl_free_all(ctx);
keir@20462 65 free(ctx->alloc_ptrs);
keir@20462 66 xc_interface_close(ctx->xch);
keir@20545 67 xs_daemon_close(ctx->xsh);
keir@20462 68 return 0;
keir@20462 69 }
keir@20462 70
keir@20462 71 int libxl_ctx_set_log(struct libxl_ctx *ctx, libxl_log_callback log_callback, void *log_data)
keir@20462 72 {
keir@20462 73 ctx->log_callback = log_callback;
keir@20462 74 ctx->log_userdata = log_data;
keir@20462 75 return 0;
keir@20462 76 }
keir@20462 77
keir@20462 78 /******************************************************************************/
keir@20462 79
keir@20462 80 int libxl_domain_make(struct libxl_ctx *ctx, libxl_domain_create_info *info,
keir@20462 81 uint32_t *domid)
keir@20462 82 {
keir@20462 83 int flags, ret, i;
keir@20468 84 char *uuid_string;
keir@20646 85 char *rw_paths[] = { "device", "device/suspend/event-channel" , "data"};
keir@20462 86 char *ro_paths[] = { "cpu", "memory", "device", "error", "drivers",
keir@20646 87 "control", "attr", "messages" };
keir@20462 88 char *dom_path, *vm_path, *vss_path;
keir@20462 89 struct xs_permissions roperm[2];
keir@20462 90 struct xs_permissions rwperm[1];
keir@20462 91 xs_transaction_t t;
keir@20468 92 xen_domain_handle_t handle;
keir@20462 93
keir@20801 94 uuid_string = string_of_uuid(ctx, info->uuid);
keir@20462 95 if (!uuid_string) {
keir@20801 96 XL_LOG(ctx, XL_LOG_ERROR, "cannot allocate uuid string");
keir@20462 97 return ERROR_FAIL;
keir@20462 98 }
keir@20462 99
keir@20462 100 flags = info->hvm ? XEN_DOMCTL_CDF_hvm_guest : 0;
keir@20462 101 flags |= info->hap ? XEN_DOMCTL_CDF_hap : 0;
keir@20824 102 *domid = -1;
keir@20462 103
keir@20580 104 /* Ultimately, handle is an array of 16 uint8_t, same as uuid */
keir@20580 105 memcpy(handle, info->uuid, sizeof(xen_domain_handle_t));
keir@20468 106
keir@20468 107 ret = xc_domain_create(ctx->xch, info->ssidref, handle, flags, domid);
keir@20462 108 if (ret < 0) {
keir@20512 109 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, ret, "domain creation fail");
keir@20462 110 return ERROR_FAIL;
keir@20462 111 }
keir@20462 112
keir@20462 113 dom_path = libxl_xs_get_dompath(ctx, *domid);
keir@20512 114 if (!dom_path)
keir@20512 115 return ERROR_FAIL;
keir@20512 116
keir@20462 117 vm_path = libxl_sprintf(ctx, "/vm/%s", uuid_string);
keir@20462 118 vss_path = libxl_sprintf(ctx, "/vss/%s", uuid_string);
keir@20512 119 if (!vm_path || !vss_path) {
keir@20462 120 XL_LOG(ctx, XL_LOG_ERROR, "cannot allocate create paths");
keir@20462 121 return ERROR_FAIL;
keir@20462 122 }
keir@20462 123
keir@20462 124 roperm[0].id = 0;
keir@20462 125 roperm[0].perms = XS_PERM_NONE;
keir@20462 126 roperm[1].id = *domid;
keir@20462 127 roperm[1].perms = XS_PERM_READ;
keir@20462 128 rwperm[0].id = *domid;
keir@20462 129 rwperm[0].perms = XS_PERM_NONE;
keir@20462 130
keir@20462 131 retry_transaction:
keir@20462 132 t = xs_transaction_start(ctx->xsh);
keir@20462 133 xs_rm(ctx->xsh, t, dom_path);
keir@20462 134 xs_mkdir(ctx->xsh, t, dom_path);
keir@20462 135 xs_set_permissions(ctx->xsh, t, dom_path, roperm, ARRAY_SIZE(roperm));
keir@20462 136
keir@20462 137 xs_rm(ctx->xsh, t, vm_path);
keir@20462 138 xs_mkdir(ctx->xsh, t, vm_path);
keir@20462 139 xs_set_permissions(ctx->xsh, t, vm_path, roperm, ARRAY_SIZE(roperm));
keir@20462 140
keir@20462 141 xs_rm(ctx->xsh, t, vss_path);
keir@20462 142 xs_mkdir(ctx->xsh, t, vss_path);
keir@20462 143 xs_set_permissions(ctx->xsh, t, vss_path, rwperm, ARRAY_SIZE(rwperm));
keir@20462 144
keir@20462 145 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/vm", dom_path), vm_path, strlen(vm_path));
keir@20462 146 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/vss", dom_path), vss_path, strlen(vss_path));
keir@20462 147 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/name", dom_path), info->name, strlen(info->name));
keir@20462 148
keir@20462 149 for (i = 0; i < ARRAY_SIZE(rw_paths); i++) {
keir@20462 150 char *path = libxl_sprintf(ctx, "%s/%s", dom_path, rw_paths[i]);
keir@20462 151 xs_mkdir(ctx->xsh, t, path);
keir@20462 152 xs_set_permissions(ctx->xsh, t, path, rwperm, ARRAY_SIZE(rwperm));
keir@20462 153 libxl_free(ctx, path);
keir@20462 154 }
keir@20462 155 for (i = 0; i < ARRAY_SIZE(ro_paths); i++) {
keir@20462 156 char *path = libxl_sprintf(ctx, "%s/%s", dom_path, ro_paths[i]);
keir@20462 157 xs_mkdir(ctx->xsh, t, path);
keir@20462 158 xs_set_permissions(ctx->xsh, t, path, roperm, ARRAY_SIZE(roperm));
keir@20462 159 libxl_free(ctx, path);
keir@20462 160 }
keir@20462 161
keir@20462 162 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/uuid", vm_path), uuid_string, strlen(uuid_string));
keir@20462 163 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/name", vm_path), info->name, strlen(info->name));
keir@20462 164
keir@20462 165 libxl_xs_writev(ctx, t, dom_path, info->xsdata);
keir@20462 166 libxl_xs_writev(ctx, t, libxl_sprintf(ctx, "%s/platform", dom_path), info->platformdata);
keir@20462 167
keir@20462 168 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/control/platform-feature-multiprocessor-suspend", dom_path), "1", 1);
keir@20462 169
keir@20462 170 if (!xs_transaction_end(ctx->xsh, t, 0))
keir@20462 171 if (errno == EAGAIN)
keir@20462 172 goto retry_transaction;
keir@20462 173 return 0;
keir@20462 174 }
keir@20462 175
keir@20516 176 int libxl_domain_build(struct libxl_ctx *ctx, libxl_domain_build_info *info, uint32_t domid, libxl_domain_build_state *state)
keir@20462 177 {
keir@20462 178 char **vments = NULL, **localents = NULL;
keir@20829 179 int i, ret;
keir@20829 180
keir@20829 181 ret = build_pre(ctx, domid, info, state);
keir@20829 182 if (ret) goto out;
keir@20462 183
keir@20462 184 if (info->hvm) {
keir@20829 185 ret = build_hvm(ctx, domid, info, state);
keir@20829 186 if (ret) goto out;
keir@20829 187
keir@20509 188 vments = libxl_calloc(ctx, 5, sizeof(char *));
keir@20516 189 vments[0] = "rtc/timeoffset";
keir@20516 190 vments[1] = (info->u.hvm.timeoffset) ? info->u.hvm.timeoffset : "";
keir@20516 191 vments[2] = "image/ostype";
keir@20516 192 vments[3] = "hvm";
keir@20462 193 } else {
keir@20829 194 ret = build_pv(ctx, domid, info, state);
keir@20829 195 if (ret) goto out;
keir@20829 196
keir@20509 197 vments = libxl_calloc(ctx, 9, sizeof(char *));
keir@20578 198 i = 0;
keir@20578 199 vments[i++] = "image/ostype";
keir@20578 200 vments[i++] = "linux";
keir@20578 201 vments[i++] = "image/kernel";
keir@20578 202 vments[i++] = (char*) info->kernel;
keir@20578 203 if (info->u.pv.ramdisk) {
keir@20578 204 vments[i++] = "image/ramdisk";
keir@20578 205 vments[i++] = (char*) info->u.pv.ramdisk;
keir@20578 206 }
keir@20578 207 if (info->u.pv.cmdline) {
keir@20578 208 vments[i++] = "image/cmdline";
keir@20578 209 vments[i++] = (char*) info->u.pv.cmdline;
keir@20578 210 }
keir@20462 211 }
keir@20829 212 ret = build_post(ctx, domid, info, state, vments, localents);
keir@20829 213 out:
keir@20829 214 return ret;
keir@20462 215 }
keir@20462 216
keir@20462 217 int libxl_domain_restore(struct libxl_ctx *ctx, libxl_domain_build_info *info,
keir@20565 218 uint32_t domid, int fd, libxl_domain_build_state *state,
keir@20565 219 libxl_device_model_info *dm_info)
keir@20462 220 {
keir@20462 221 char **vments = NULL, **localents = NULL;
keir@20829 222 int i, ret;
keir@20462 223
keir@20829 224 ret = build_pre(ctx, domid, info, state);
keir@20829 225 if (ret) goto out;
keir@20829 226
keir@20829 227 ret = restore_common(ctx, domid, info, state, fd);
keir@20829 228 if (ret) goto out;
keir@20829 229
keir@20462 230 if (info->hvm) {
keir@20565 231 vments = libxl_calloc(ctx, 5, sizeof(char *));
keir@20516 232 vments[0] = "rtc/timeoffset";
keir@20516 233 vments[1] = (info->u.hvm.timeoffset) ? info->u.hvm.timeoffset : "";
keir@20565 234 vments[2] = "image/ostype";
keir@20565 235 vments[3] = "hvm";
keir@20462 236 } else {
keir@20565 237 vments = libxl_calloc(ctx, 9, sizeof(char *));
keir@20627 238 i = 0;
keir@20627 239 vments[i++] = "image/ostype";
keir@20627 240 vments[i++] = "linux";
keir@20627 241 vments[i++] = "image/kernel";
keir@20627 242 vments[i++] = (char*) info->kernel;
keir@20627 243 if (info->u.pv.ramdisk) {
keir@20627 244 vments[i++] = "image/ramdisk";
keir@20627 245 vments[i++] = (char*) info->u.pv.ramdisk;
keir@20627 246 }
keir@20627 247 if (info->u.pv.cmdline) {
keir@20627 248 vments[i++] = "image/cmdline";
keir@20627 249 vments[i++] = (char*) info->u.pv.cmdline;
keir@20627 250 }
keir@20462 251 }
keir@20829 252 ret = build_post(ctx, domid, info, state, vments, localents);
keir@20829 253 if (ret) goto out;
keir@20829 254
keir@20565 255 if (info->hvm)
keir@20565 256 asprintf(&(dm_info->saved_state), "/var/lib/xen/qemu-save.%d", domid);
keir@20565 257 else
keir@20565 258 dm_info->saved_state = NULL;
keir@20829 259 out:
keir@20829 260 return ret;
keir@20462 261 }
keir@20462 262
keir@20629 263 int libxl_domain_resume(struct libxl_ctx *ctx, uint32_t domid)
keir@20629 264 {
keir@20629 265 if (is_hvm(ctx, domid)) {
keir@20629 266 XL_LOG(ctx, XL_LOG_DEBUG, "Called domain_resume on "
keir@20629 267 "non-cooperative hvm domain %u", domid);
keir@20629 268 return ERROR_NI;
keir@20629 269 }
keir@20629 270 if (xc_domain_resume(ctx->xch, domid, 1)) {
keir@20629 271 XL_LOG_ERRNO(ctx, XL_LOG_ERROR,
keir@20629 272 "xc_domain_resume failed for domain %u",
keir@20629 273 domid);
keir@20629 274 return ERROR_FAIL;
keir@20629 275 }
keir@20629 276 if (!xs_resume_domain(ctx->xsh, domid)) {
keir@20629 277 XL_LOG_ERRNO(ctx, XL_LOG_ERROR,
keir@20629 278 "xs_resume_domain failed for domain %u",
keir@20629 279 domid);
keir@20629 280 return ERROR_FAIL;
keir@20629 281 }
keir@20629 282 return 0;
keir@20629 283 }
keir@20629 284
keir@20462 285 struct libxl_dominfo * libxl_domain_list(struct libxl_ctx *ctx, int *nb_domain)
keir@20462 286 {
keir@20462 287 struct libxl_dominfo *ptr;
keir@20462 288 int index, i, ret, first_domain;
keir@20822 289 xc_domaininfo_t info[1024];
keir@20822 290 int size = 1024;
keir@20462 291
keir@20462 292 first_domain = 1;
keir@20462 293 index = 0;
keir@20516 294 ptr = calloc(size, sizeof(struct libxl_dominfo));
keir@20462 295 if (!ptr)
keir@20462 296 return NULL;
keir@20822 297
keir@20822 298 ret = xc_domain_getinfolist(ctx->xch, first_domain, 1024, info);
keir@20462 299 for (i = 0; i < ret; i++) {
keir@20579 300 memcpy(&(ptr[index].uuid), info[i].handle, sizeof(xen_domain_handle_t));
keir@20462 301 ptr[index].domid = info[i].domain;
keir@20784 302
keir@20784 303 if (info[i].flags & XEN_DOMINF_dying)
keir@20784 304 ptr[index].dying = 1;
keir@20784 305 else if (info[i].flags & XEN_DOMINF_paused)
keir@20784 306 ptr[index].paused = 1;
keir@20784 307 else if (info[i].flags & XEN_DOMINF_blocked || info[i].flags & XEN_DOMINF_running)
keir@20784 308 ptr[index].running = 1;
keir@20784 309
keir@20462 310 first_domain = info[i].domain + 1;
keir@20462 311 index++;
keir@20462 312 }
keir@20462 313 *nb_domain = index;
keir@20462 314 return ptr;
keir@20462 315 }
keir@20462 316
keir@20462 317 int libxl_domain_suspend(struct libxl_ctx *ctx, libxl_domain_suspend_info *info,
keir@20462 318 uint32_t domid, int fd)
keir@20462 319 {
keir@20565 320 int hvm = is_hvm(ctx, domid);
keir@20565 321 int live = info != NULL && info->flags & XL_SUSPEND_LIVE;
keir@20565 322 int debug = info != NULL && info->flags & XL_SUSPEND_LIVE;
keir@20462 323
keir@20462 324 core_suspend(ctx, domid, fd, hvm, live, debug);
keir@20565 325 if (hvm)
keir@20779 326 save_device_model(ctx, domid, fd);
keir@20462 327 return 0;
keir@20462 328 }
keir@20462 329
keir@20462 330 int libxl_domain_pause(struct libxl_ctx *ctx, uint32_t domid)
keir@20462 331 {
keir@20462 332 xc_domain_pause(ctx->xch, domid);
keir@20462 333 return 0;
keir@20462 334 }
keir@20462 335
keir@20462 336 int libxl_domain_unpause(struct libxl_ctx *ctx, uint32_t domid)
keir@20462 337 {
keir@20779 338 char *path;
keir@20565 339 char *state;
keir@20565 340
keir@20565 341 if (is_hvm(ctx, domid)) {
keir@20779 342 path = libxl_sprintf(ctx, "/local/domain/0/device-model/%d/state", domid);
keir@20565 343 state = libxl_xs_read(ctx, XBT_NULL, path);
keir@20565 344 if (state != NULL && !strcmp(state, "paused")) {
keir@20565 345 libxl_xs_write(ctx, XBT_NULL, libxl_sprintf(ctx, "/local/domain/0/device-model/%d/command", domid), "continue", strlen("continue"));
keir@20565 346 libxl_wait_for_device_model(ctx, domid, "running", NULL, NULL);
keir@20565 347 }
keir@20565 348 }
keir@20462 349 xc_domain_unpause(ctx->xch, domid);
keir@20565 350
keir@20462 351 return 0;
keir@20462 352 }
keir@20462 353
keir@20462 354 static char *req_table[] = {
keir@20462 355 [0] = "poweroff",
keir@20462 356 [1] = "reboot",
keir@20462 357 [2] = "suspend",
keir@20462 358 [3] = "crash",
keir@20462 359 [4] = "halt",
keir@20462 360 };
keir@20462 361
keir@20462 362 int libxl_domain_shutdown(struct libxl_ctx *ctx, uint32_t domid, int req)
keir@20462 363 {
keir@20462 364 char *shutdown_path;
keir@20462 365 char *dom_path;
keir@20462 366
keir@20462 367 if (req > ARRAY_SIZE(req_table))
keir@20462 368 return ERROR_INVAL;
keir@20462 369
keir@20462 370 dom_path = libxl_xs_get_dompath(ctx, domid);
keir@20512 371 if (!dom_path)
keir@20512 372 return ERROR_FAIL;
keir@20512 373
keir@20462 374 shutdown_path = libxl_sprintf(ctx, "%s/control/shutdown", dom_path);
keir@20462 375
keir@20462 376 xs_write(ctx->xsh, XBT_NULL, shutdown_path, req_table[req], strlen(req_table[req]));
keir@20462 377 if (/* hvm */ 0) {
keir@20462 378 unsigned long acpi_s_state = 0;
keir@20462 379 unsigned long pvdriver = 0;
keir@20462 380 xc_get_hvm_param(ctx->xch, domid, HVM_PARAM_ACPI_S_STATE, &acpi_s_state);
keir@20462 381 xc_get_hvm_param(ctx->xch, domid, HVM_PARAM_CALLBACK_IRQ, &pvdriver);
keir@20462 382 if (!pvdriver && acpi_s_state != 0)
keir@20462 383 xc_domain_shutdown(ctx->xch, domid, req);
keir@20462 384 }
keir@20462 385 return 0;
keir@20462 386 }
keir@20462 387
keir@20637 388 int libxl_get_wait_fd(struct libxl_ctx *ctx, int *fd)
keir@20545 389 {
keir@20545 390 *fd = xs_fileno(ctx->xsh);
keir@20545 391 return 0;
keir@20545 392 }
keir@20545 393
keir@20637 394 int libxl_wait_for_domain_death(struct libxl_ctx *ctx, uint32_t domid, libxl_waiter *waiter)
keir@20637 395 {
keir@20637 396 waiter->path = strdup("@releaseDomain");
keir@20637 397 asprintf(&(waiter->token), "%d", DOMAIN_DEATH);
keir@20637 398 if (!xs_watch(ctx->xsh, waiter->path, waiter->token))
keir@20637 399 return -1;
keir@20637 400 return 0;
keir@20637 401 }
keir@20637 402
keir@20637 403 int libxl_wait_for_disk_ejects(struct libxl_ctx *ctx, uint32_t guest_domid, libxl_device_disk *disks, int num_disks, libxl_waiter *waiter)
keir@20637 404 {
keir@20637 405 int i;
keir@20637 406 uint32_t domid = libxl_get_stubdom_id(ctx, guest_domid);
keir@20637 407
keir@20637 408 if (!domid)
keir@20637 409 domid = guest_domid;
keir@20637 410
keir@20637 411 for (i = 0; i < num_disks; i++) {
keir@20637 412 asprintf(&(waiter[i].path), "%s/device/vbd/%d/eject", libxl_xs_get_dompath(ctx, domid), device_disk_dev_number(disks[i].virtpath));
keir@20637 413 asprintf(&(waiter[i].token), "%d", DISK_EJECT);
keir@20637 414 xs_watch(ctx->xsh, waiter->path, waiter->token);
keir@20637 415 }
keir@20637 416 return 0;
keir@20637 417 }
keir@20637 418
keir@20637 419 int libxl_get_event(struct libxl_ctx *ctx, libxl_event *event)
keir@20545 420 {
keir@20545 421 unsigned int num;
keir@20637 422 char **events = xs_read_watch(ctx->xsh, &num);
keir@20637 423 if (num != 2) {
keir@20637 424 free(events);
keir@20637 425 return -1;
keir@20637 426 }
keir@20637 427 event->path = strdup(events[XS_WATCH_PATH]);
keir@20637 428 event->token = strdup(events[XS_WATCH_TOKEN]);
keir@20637 429 event->type = atoi(event->token);
keir@20637 430 free(events);
keir@20637 431 return 0;
keir@20637 432 }
keir@20637 433
keir@20637 434 int libxl_stop_waiting(struct libxl_ctx *ctx, libxl_waiter *waiter)
keir@20637 435 {
keir@20637 436 if (!xs_unwatch(ctx->xsh, waiter->path, waiter->token))
keir@20637 437 return -1;
keir@20637 438 else
keir@20637 439 return 0;
keir@20637 440 }
keir@20637 441
keir@20637 442 int libxl_free_event(libxl_event *event)
keir@20637 443 {
keir@20637 444 free(event->path);
keir@20637 445 free(event->token);
keir@20637 446 return 0;
keir@20637 447 }
keir@20637 448
keir@20637 449 int libxl_free_waiter(libxl_waiter *waiter)
keir@20637 450 {
keir@20637 451 free(waiter->path);
keir@20637 452 free(waiter->token);
keir@20637 453 return 0;
keir@20637 454 }
keir@20637 455
keir@20785 456 int libxl_event_get_domain_death_info(struct libxl_ctx *ctx, uint32_t domid, libxl_event *event, xc_domaininfo_t *info)
keir@20637 457 {
keir@20785 458 int rc = 0, ret;
keir@20545 459
keir@20637 460 if (event && event->type == DOMAIN_DEATH) {
keir@20785 461 ret = xc_domain_getinfolist(ctx->xch, domid, 1, info);
keir@20785 462 if (ret == 1 && info->domain == domid) {
keir@20785 463 if (info->flags & XEN_DOMINF_running ||
keir@20785 464 (!(info->flags & XEN_DOMINF_shutdown) && !(info->flags & XEN_DOMINF_dying)))
keir@20545 465 goto out;
keir@20545 466 rc = 1;
keir@20545 467 goto out;
keir@20545 468 }
keir@20785 469 memset(info, 0, sizeof(xc_dominfo_t));
keir@20545 470 rc = 1;
keir@20545 471 goto out;
keir@20545 472 }
keir@20545 473 out:
keir@20545 474 return rc;
keir@20545 475 }
keir@20545 476
keir@20637 477 int libxl_event_get_disk_eject_info(struct libxl_ctx *ctx, uint32_t domid, libxl_event *event, libxl_device_disk *disk)
keir@20637 478 {
keir@20637 479 if (event && event->type == DISK_EJECT) {
keir@20637 480 char *path;
keir@20637 481 char *backend;
keir@20637 482 char *value = libxl_xs_read(ctx, XBT_NULL, event->path);
keir@20637 483
keir@20637 484 if (!value || strcmp(value, "eject"))
keir@20637 485 return 0;
keir@20637 486
keir@20637 487 path = strdup(event->path);
keir@20637 488 path[strlen(path) - 6] = '\0';
keir@20637 489 backend = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/backend", path));
keir@20637 490
keir@20637 491 disk->backend_domid = 0;
keir@20637 492 disk->domid = domid;
keir@20637 493 disk->physpath = NULL;
keir@20637 494 disk->phystype = 0;
keir@20637 495 /* this value is returned to the user: do not free right away */
keir@20637 496 disk->virtpath = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/dev", backend));
keir@20637 497 disk->unpluggable = 1;
keir@20637 498 disk->readwrite = 0;
keir@20637 499 disk->is_cdrom = 1;
keir@20637 500
keir@20637 501 free(path);
keir@20637 502 return 1;
keir@20637 503 }
keir@20637 504 return 0;
keir@20637 505 }
keir@20637 506
keir@20462 507 static int libxl_destroy_device_model(struct libxl_ctx *ctx, uint32_t domid)
keir@20462 508 {
keir@20462 509 char *pid;
keir@20462 510 int ret;
keir@20462 511
keir@20462 512 pid = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "/local/domain/%d/image/device-model-pid", domid));
keir@20462 513 if (!pid) {
keir@20542 514 int stubdomid = libxl_get_stubdom_id(ctx, domid);
keir@20542 515 if (!stubdomid) {
keir@20542 516 XL_LOG_ERRNO(ctx, XL_LOG_ERROR, "Couldn't find device model's pid");
keir@20542 517 return -1;
keir@20542 518 }
keir@20542 519 XL_LOG(ctx, XL_LOG_ERROR, "Device model is a stubdom, domid=%d\n", stubdomid);
keir@20542 520 return libxl_domain_destroy(ctx, stubdomid, 0);
keir@20462 521 }
keir@20462 522 xs_rm(ctx->xsh, XBT_NULL, libxl_sprintf(ctx, "/local/domain/0/device-model/%d", domid));
keir@20462 523
keir@20462 524 ret = kill(atoi(pid), SIGHUP);
keir@20462 525 if (ret < 0 && errno == ESRCH) {
keir@20512 526 XL_LOG(ctx, XL_LOG_DEBUG, "Device Model already exited");
keir@20462 527 ret = 0;
keir@20462 528 } else if (ret == 0) {
keir@20512 529 XL_LOG(ctx, XL_LOG_DEBUG, "Device Model signaled");
keir@20462 530 ret = 0;
keir@20462 531 } else {
keir@20512 532 XL_LOG_ERRNO(ctx, XL_LOG_ERROR, "failed to kill Device Model [%d]",
keir@20512 533 atoi(pid));
keir@20462 534 }
keir@20462 535 return ret;
keir@20462 536 }
keir@20462 537
keir@20462 538 int libxl_domain_destroy(struct libxl_ctx *ctx, uint32_t domid, int force)
keir@20462 539 {
keir@20801 540 char *dom_path;
keir@20779 541 char *vm_path, *vss_path, *xapi_path;
keir@20628 542 int rc, dm_present;
keir@20628 543
keir@20628 544 if (is_hvm(ctx, domid)) {
keir@20628 545 dm_present = 1;
keir@20628 546 } else {
keir@20628 547 char *pid;
keir@20628 548 pid = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "/local/domain/%d/image/device-model-pid", domid));
keir@20628 549 dm_present = (pid != NULL);
keir@20628 550 libxl_free(ctx, pid);
keir@20628 551 }
keir@20462 552
keir@20462 553 dom_path = libxl_xs_get_dompath(ctx, domid);
keir@20512 554 if (!dom_path)
keir@20462 555 return -1;
keir@20512 556
keir@20482 557 if (libxl_device_pci_shutdown(ctx, domid) < 0)
keir@20512 558 XL_LOG(ctx, XL_LOG_ERROR, "pci shutdown failed for domid %d", domid);
keir@20628 559 if (dm_present) {
keir@20628 560 xs_write(ctx->xsh, XBT_NULL,
keir@20628 561 libxl_sprintf(ctx, "/local/domain/0/device-model/%d/command", domid),
keir@20628 562 "shutdown", strlen("shutdown"));
keir@20628 563 }
keir@20512 564 rc = xc_domain_pause(ctx->xch, domid);
keir@20512 565 if (rc < 0) {
keir@20512 566 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "xc_domain_pause failed for %d", domid);
keir@20462 567 return -1;
keir@20462 568 }
keir@20628 569 if (dm_present) {
keir@20628 570 if (libxl_destroy_device_model(ctx, domid) < 0)
keir@20628 571 XL_LOG(ctx, XL_LOG_ERROR, "libxl_destroy_device_model failed for %d", domid);
keir@20628 572 }
keir@20462 573 if (libxl_devices_destroy(ctx, domid, force) < 0)
keir@20512 574 XL_LOG(ctx, XL_LOG_ERROR, "libxl_destroy_devices failed for %d", domid);
keir@20462 575 if (!xs_rm(ctx->xsh, XBT_NULL, dom_path))
keir@20512 576 XL_LOG_ERRNO(ctx, XL_LOG_ERROR, "xs_rm failed for %s", dom_path);
keir@20779 577
keir@20801 578 vm_path = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "/local/domain/%d/vm", domid));
keir@20823 579 if (vm_path)
keir@20823 580 if (!xs_rm(ctx->xsh, XBT_NULL, vm_path))
keir@20823 581 XL_LOG_ERRNO(ctx, XL_LOG_ERROR, "xs_rm failed for %s", vm_path);
keir@20779 582
keir@20801 583 vss_path = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "/local/domain/%d/vss", domid));
keir@20823 584 if (vss_path)
keir@20823 585 if (!xs_rm(ctx->xsh, XBT_NULL, vss_path))
keir@20823 586 XL_LOG_ERRNO(ctx, XL_LOG_ERROR, "xs_rm failed for %s", vss_path);
keir@20779 587
keir@20779 588 xapi_path = libxl_sprintf(ctx, "/xapi/%u", domid);
keir@20823 589 if (xapi_path)
keir@20823 590 if (!xs_rm(ctx->xsh, XBT_NULL, xapi_path))
keir@20823 591 XL_LOG_ERRNO(ctx, XL_LOG_ERROR, "xs_rm failed for %s", xapi_path);
keir@20779 592
keir@20545 593 rc = xc_domain_destroy(ctx->xch, domid);
keir@20545 594 if (rc < 0) {
keir@20545 595 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "xc_domain_destroy failed for %d", domid);
keir@20545 596 return -1;
keir@20545 597 }
keir@20462 598 return 0;
keir@20462 599 }
keir@20462 600
keir@20564 601 int libxl_console_attach(struct libxl_ctx *ctx, uint32_t domid, int cons_num)
keir@20564 602 {
keir@20564 603 struct stat st;
keir@20564 604 const char *XENCONSOLE = "/usr/lib/xen/bin/xenconsole";
keir@20564 605 char *cmd;
keir@20564 606
keir@20564 607 if (stat(XENCONSOLE, &st) != 0) {
keir@20564 608 XL_LOG(ctx, XL_LOG_ERROR, "could not access %s", XENCONSOLE);
keir@20564 609 return ERROR_FAIL;
keir@20564 610 }
keir@20564 611
keir@20564 612 cmd = libxl_sprintf(ctx, "%s %d --num %d", XENCONSOLE, domid, cons_num);
keir@20564 613 return (system(cmd) != 0) ? ERROR_FAIL : 0;
keir@20564 614 }
keir@20564 615
keir@20462 616 static char ** libxl_build_device_model_args(struct libxl_ctx *ctx,
keir@20462 617 libxl_device_model_info *info,
keir@20462 618 libxl_device_nic *vifs,
keir@20462 619 int num_vifs)
keir@20462 620 {
keir@20462 621 int num = 0, i;
keir@20462 622 flexarray_t *dm_args;
keir@20462 623 dm_args = flexarray_make(16, 1);
keir@20462 624 if (!dm_args)
keir@20462 625 return NULL;
keir@20462 626
keir@20516 627 flexarray_set(dm_args, num++, "qemu-dm");
keir@20516 628 flexarray_set(dm_args, num++, "-d");
keir@20462 629
keir@20462 630 flexarray_set(dm_args, num++, libxl_sprintf(ctx, "%d", info->domid));
keir@20462 631
keir@20462 632 if (info->dom_name) {
keir@20516 633 flexarray_set(dm_args, num++, "-domain-name");
keir@20516 634 flexarray_set(dm_args, num++, info->dom_name);
keir@20462 635 }
keir@20462 636 if (info->vnc || info->vncdisplay || info->vnclisten || info->vncunused) {
keir@20516 637 flexarray_set(dm_args, num++, "-vnc");
keir@20462 638 if (info->vncdisplay) {
keir@20462 639 if (info->vnclisten && strchr(info->vnclisten, ':') == NULL) {
keir@20462 640 flexarray_set(dm_args, num++, libxl_sprintf(ctx, "%s:%d", info->vnclisten, info->vncdisplay));
keir@20462 641 } else {
keir@20462 642 flexarray_set(dm_args, num++, libxl_sprintf(ctx, "127.0.0.1:%d", info->vncdisplay));
keir@20462 643 }
keir@20462 644 } else if (info->vnclisten) {
keir@20462 645 if (strchr(info->vnclisten, ':') != NULL) {
keir@20516 646 flexarray_set(dm_args, num++, info->vnclisten);
keir@20462 647 } else {
keir@20462 648 flexarray_set(dm_args, num++, libxl_sprintf(ctx, "%s:0", info->vnclisten));
keir@20462 649 }
keir@20462 650 } else {
keir@20516 651 flexarray_set(dm_args, num++, "127.0.0.1:0");
keir@20462 652 }
keir@20462 653 if (info->vncunused) {
keir@20516 654 flexarray_set(dm_args, num++, "-vncunused");
keir@20462 655 }
keir@20462 656 }
keir@20462 657 if (info->sdl || info->opengl) {
keir@20516 658 flexarray_set(dm_args, num++, "-sdl");
keir@20462 659 if (info->opengl) {
keir@20516 660 flexarray_set(dm_args, num++, "-disable-opengl");
keir@20462 661 }
keir@20462 662 }
keir@20462 663 if (info->keymap) {
keir@20516 664 flexarray_set(dm_args, num++, "-k");
keir@20516 665 flexarray_set(dm_args, num++, info->keymap);
keir@20462 666 }
keir@20462 667 if (info->nographic && (!info->sdl && !info->vnc)) {
keir@20516 668 flexarray_set(dm_args, num++, "-nographic");
keir@20462 669 }
keir@20462 670 if (info->serial) {
keir@20516 671 flexarray_set(dm_args, num++, "-serial");
keir@20516 672 flexarray_set(dm_args, num++, info->serial);
keir@20462 673 }
keir@20509 674 if (info->type == XENFV) {
keir@20509 675 if (info->videoram) {
keir@20516 676 flexarray_set(dm_args, num++, "-videoram");
keir@20509 677 flexarray_set(dm_args, num++, libxl_sprintf(ctx, "%d", info->videoram));
keir@20509 678 }
keir@20509 679 if (info->stdvga) {
keir@20516 680 flexarray_set(dm_args, num++, "-std-vga");
keir@20509 681 }
keir@20509 682
keir@20509 683 if (info->boot) {
keir@20516 684 flexarray_set(dm_args, num++, "-boot");
keir@20516 685 flexarray_set(dm_args, num++, info->boot);
keir@20509 686 }
keir@20509 687 if (info->usb) {
keir@20516 688 flexarray_set(dm_args, num++, "-usb");
keir@20509 689 if (info->usbdevice) {
keir@20516 690 flexarray_set(dm_args, num++, "-usbdevice");
keir@20516 691 flexarray_set(dm_args, num++, info->usbdevice);
keir@20509 692 }
keir@20509 693 }
keir@20509 694 if (info->apic) {
keir@20516 695 flexarray_set(dm_args, num++, "-acpi");
keir@20509 696 }
keir@20509 697 for (i = 0; i < num_vifs; i++) {
keir@20509 698 if (vifs[i].nictype == NICTYPE_IOEMU) {
keir@20780 699 char *smac = libxl_sprintf(ctx, "%02x:%02x:%02x:%02x:%02x:%02x",
keir@20780 700 vifs[i].mac[0], vifs[i].mac[1], vifs[i].mac[2],
keir@20780 701 vifs[i].mac[3], vifs[i].mac[4], vifs[i].mac[5]);
keir@20781 702 if (!vifs[i].ifname)
keir@20781 703 vifs[i].ifname = libxl_sprintf(ctx, "tap%d.%d", info->domid, vifs[i].devid - 1);
keir@20516 704 flexarray_set(dm_args, num++, "-net");
keir@20509 705 flexarray_set(dm_args, num++, libxl_sprintf(ctx, "nic,vlan=%d,macaddr=%s,model=%s",
keir@20780 706 vifs[i].devid, smac, vifs[i].model));
keir@20516 707 flexarray_set(dm_args, num++, "-net");
keir@20509 708 flexarray_set(dm_args, num++, libxl_sprintf(ctx, "tap,vlan=%d,ifname=%s,bridge=%s",
keir@20509 709 vifs[i].devid, vifs[i].ifname, vifs[i].bridge));
keir@20509 710 }
keir@20462 711 }
keir@20462 712 }
keir@20565 713 if (info->saved_state) {
keir@20565 714 flexarray_set(dm_args, num++, "-loadvm");
keir@20565 715 flexarray_set(dm_args, num++, info->saved_state);
keir@20565 716 }
keir@20509 717 for (i = 0; info->extra && info->extra[i] != NULL; i++)
keir@20509 718 flexarray_set(dm_args, num++, info->extra[i]);
keir@20516 719 flexarray_set(dm_args, num++, "-M");
keir@20509 720 if (info->type == XENPV)
keir@20516 721 flexarray_set(dm_args, num++, "xenpv");
keir@20509 722 else
keir@20516 723 flexarray_set(dm_args, num++, "xenfv");
keir@20462 724 flexarray_set(dm_args, num++, NULL);
keir@20462 725
keir@20462 726 return (char **) flexarray_contents(dm_args);
keir@20462 727 }
keir@20462 728
keir@20834 729 void dm_xenstore_record_pid(void *for_spawn, pid_t innerchild)
keir@20834 730 {
keir@20514 731 struct libxl_device_model_starting *starting = for_spawn;
keir@20514 732 char *kvs[3];
keir@20820 733 int rc;
keir@20820 734 struct xs_handle *xsh;
keir@20514 735
keir@20820 736 xsh = xs_daemon_open();
keir@20514 737 /* we mustn't use the parent's handle in the child */
keir@20514 738
keir@20514 739 kvs[0] = "image/device-model-pid";
keir@20820 740 asprintf(&kvs[1], "%d", innerchild);
keir@20514 741 kvs[2] = NULL;
keir@20820 742
keir@20820 743 rc = xs_writev(xsh, XBT_NULL, starting->dom_path, kvs);
keir@20820 744 if (rc)
keir@20820 745 return;
keir@20820 746 xs_daemon_close(xsh);
keir@20514 747 }
keir@20514 748
keir@20542 749 static int libxl_vfb_and_vkb_from_device_model_info(struct libxl_ctx *ctx,
keir@20542 750 libxl_device_model_info *info,
keir@20542 751 libxl_device_vfb *vfb,
keir@20542 752 libxl_device_vkb *vkb)
keir@20542 753 {
keir@20542 754 memset(vfb, 0x00, sizeof(libxl_device_vfb));
keir@20542 755 memset(vkb, 0x00, sizeof(libxl_device_vkb));
keir@20542 756
keir@20542 757 vfb->backend_domid = 0;
keir@20542 758 vfb->devid = 0;
keir@20542 759 vfb->vnc = info->vnc;
keir@20542 760 vfb->vnclisten = info->vnclisten;
keir@20542 761 vfb->vncdisplay = info->vncdisplay;
keir@20542 762 vfb->vncunused = info->vncunused;
keir@20542 763 vfb->keymap = info->keymap;
keir@20542 764 vfb->sdl = info->sdl;
keir@20542 765 vfb->opengl = info->opengl;
keir@20542 766
keir@20542 767 vkb->backend_domid = 0;
keir@20542 768 vkb->devid = 0;
keir@20542 769 return 0;
keir@20542 770 }
keir@20542 771
keir@20542 772 static int libxl_write_dmargs(struct libxl_ctx *ctx, int domid, int guest_domid, char **args)
keir@20542 773 {
keir@20542 774 int i;
keir@20542 775 char *vm_path;
keir@20542 776 char *dmargs, *path;
keir@20542 777 int dmargs_size;
keir@20542 778 struct xs_permissions roperm[2];
keir@20542 779 xs_transaction_t t;
keir@20542 780
keir@20542 781 roperm[0].id = 0;
keir@20542 782 roperm[0].perms = XS_PERM_NONE;
keir@20542 783 roperm[1].id = domid;
keir@20542 784 roperm[1].perms = XS_PERM_READ;
keir@20542 785
keir@20542 786 vm_path = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "/local/domain/%d/vm", guest_domid));
keir@20542 787
keir@20542 788 i = 0;
keir@20542 789 dmargs_size = 0;
keir@20542 790 while (args[i] != NULL) {
keir@20542 791 dmargs_size = dmargs_size + strlen(args[i]) + 1;
keir@20542 792 i++;
keir@20542 793 }
keir@20542 794 dmargs_size++;
keir@20542 795 dmargs = (char *) malloc(dmargs_size);
keir@20542 796 i = 1;
keir@20542 797 dmargs[0] = '\0';
keir@20542 798 while (args[i] != NULL) {
keir@20542 799 if (strcmp(args[i], "-sdl") && strcmp(args[i], "-M") && strcmp(args[i], "xenfv")) {
keir@20542 800 strcat(dmargs, " ");
keir@20542 801 strcat(dmargs, args[i]);
keir@20542 802 }
keir@20542 803 i++;
keir@20542 804 }
keir@20542 805 path = libxl_sprintf(ctx, "%s/image/dmargs", vm_path);
keir@20542 806
keir@20542 807 retry_transaction:
keir@20542 808 t = xs_transaction_start(ctx->xsh);
keir@20542 809 xs_write(ctx->xsh, t, path, dmargs, strlen(dmargs));
keir@20542 810 xs_set_permissions(ctx->xsh, t, path, roperm, ARRAY_SIZE(roperm));
keir@20542 811 xs_set_permissions(ctx->xsh, t, libxl_sprintf(ctx, "%s/rtc/timeoffset", vm_path), roperm, ARRAY_SIZE(roperm));
keir@20542 812 if (!xs_transaction_end(ctx->xsh, t, 0))
keir@20542 813 if (errno == EAGAIN)
keir@20542 814 goto retry_transaction;
keir@20542 815 free(dmargs);
keir@20542 816 return 0;
keir@20542 817 }
keir@20542 818
keir@20542 819 static int libxl_create_stubdom(struct libxl_ctx *ctx,
keir@20542 820 libxl_device_model_info *info,
keir@20542 821 libxl_device_disk *disks, int num_disks,
keir@20542 822 libxl_device_nic *vifs, int num_vifs,
keir@20542 823 libxl_device_vfb *vfb,
keir@20542 824 libxl_device_vkb *vkb,
keir@20542 825 libxl_device_model_starting **starting_r)
keir@20542 826 {
keir@20570 827 int i, num_console = 1;
keir@20570 828 libxl_device_console *console;
keir@20542 829 libxl_domain_create_info c_info;
keir@20542 830 libxl_domain_build_info b_info;
keir@20542 831 libxl_domain_build_state state;
keir@20542 832 uint32_t domid;
keir@20542 833 char **args;
keir@20542 834 struct xs_permissions perm[2];
keir@20542 835 xs_transaction_t t;
keir@20594 836 libxl_device_model_starting *dm_starting = 0;
keir@20542 837
keir@20542 838 args = libxl_build_device_model_args(ctx, info, vifs, num_vifs);
keir@20542 839 if (!args)
keir@20542 840 return ERROR_FAIL;
keir@20542 841
keir@20542 842 memset(&c_info, 0x00, sizeof(libxl_domain_create_info));
keir@20542 843 c_info.hvm = 0;
keir@20542 844 c_info.name = libxl_sprintf(ctx, "%s-dm", libxl_domid_to_name(ctx, info->domid));
keir@20801 845 for (i = 0; i < 16; i++)
keir@20801 846 c_info.uuid[i] = info->uuid[i];
keir@20542 847
keir@20542 848 memset(&b_info, 0x00, sizeof(libxl_domain_build_info));
keir@20542 849 b_info.max_vcpus = 1;
keir@20542 850 b_info.max_memkb = 32 * 1024;
keir@20647 851 b_info.target_memkb = b_info.max_memkb;
keir@20542 852 b_info.kernel = "/usr/lib/xen/boot/ioemu-stubdom.gz";
keir@20542 853 b_info.u.pv.cmdline = libxl_sprintf(ctx, " -d %d", info->domid);
keir@20542 854 b_info.u.pv.ramdisk = "";
keir@20542 855 b_info.u.pv.features = "";
keir@20542 856 b_info.hvm = 0;
keir@20542 857
keir@20542 858 libxl_domain_make(ctx, &c_info, &domid);
keir@20542 859 libxl_domain_build(ctx, &b_info, domid, &state);
keir@20542 860
keir@20542 861 libxl_write_dmargs(ctx, domid, info->domid, args);
keir@20542 862 libxl_xs_write(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/image/device-model-domid", libxl_xs_get_dompath(ctx, info->domid)), "%d", domid);
keir@20542 863 libxl_xs_write(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/target", libxl_xs_get_dompath(ctx, domid)), "%d", info->domid);
keir@20542 864 xc_domain_set_target(ctx->xch, domid, info->domid);
keir@20542 865 xs_set_target(ctx->xsh, domid, info->domid);
keir@20542 866
keir@20542 867 perm[0].id = domid;
keir@20542 868 perm[0].perms = XS_PERM_NONE;
keir@20542 869 perm[1].id = info->domid;
keir@20542 870 perm[1].perms = XS_PERM_READ;
keir@20542 871 retry_transaction:
keir@20542 872 t = xs_transaction_start(ctx->xsh);
keir@20542 873 xs_mkdir(ctx->xsh, t, libxl_sprintf(ctx, "/local/domain/0/device-model/%d", info->domid));
keir@20542 874 xs_set_permissions(ctx->xsh, t, libxl_sprintf(ctx, "/local/domain/0/device-model/%d", info->domid), perm, ARRAY_SIZE(perm));
keir@20635 875 xs_mkdir(ctx->xsh, t, libxl_sprintf(ctx, "/local/domain/%d/device/vfs", domid));
keir@20635 876 xs_set_permissions(ctx->xsh, t, libxl_sprintf(ctx, "/local/domain/%d/device/vfs",domid), perm, ARRAY_SIZE(perm));
keir@20542 877 if (!xs_transaction_end(ctx->xsh, t, 0))
keir@20542 878 if (errno == EAGAIN)
keir@20542 879 goto retry_transaction;
keir@20542 880
keir@20542 881 for (i = 0; i < num_disks; i++) {
keir@20781 882 disks[i].domid = domid;
keir@20781 883 libxl_device_disk_add(ctx, domid, &disks[i]);
keir@20542 884 }
keir@20542 885 for (i = 0; i < num_vifs; i++) {
keir@20781 886 vifs[i].domid = domid;
keir@20781 887 libxl_device_nic_add(ctx, domid, &vifs[i]);
keir@20542 888 }
keir@20781 889 vfb->domid = domid;
keir@20542 890 libxl_device_vfb_add(ctx, domid, vfb);
keir@20781 891 vkb->domid = domid;
keir@20542 892 libxl_device_vkb_add(ctx, domid, vkb);
keir@20542 893
keir@20570 894 if (info->serial)
keir@20570 895 num_console++;
keir@20570 896 console = libxl_calloc(ctx, num_console, sizeof(libxl_device_console));
keir@20570 897 for (i = 0; i < num_console; i++) {
keir@20781 898 console[i].devid = i;
keir@20781 899 console[i].constype = CONSTYPE_IOEMU;
keir@20781 900 console[i].domid = domid;
keir@20570 901 if (!i)
keir@20781 902 console[i].build_state = &state;
keir@20570 903 libxl_device_console_add(ctx, domid, &console[i]);
keir@20570 904 }
keir@20594 905 if (libxl_create_xenpv_qemu(ctx, vfb, num_console, console, &dm_starting) < 0) {
keir@20594 906 free(args);
keir@20594 907 return -1;
keir@20594 908 }
keir@20594 909 if (libxl_confirm_device_model_startup(ctx, dm_starting) < 0) {
keir@20594 910 free(args);
keir@20594 911 return -1;
keir@20594 912 }
keir@20542 913
keir@20542 914 libxl_domain_unpause(ctx, domid);
keir@20542 915
keir@20594 916 if (starting_r) {
keir@20594 917 *starting_r = libxl_calloc(ctx, sizeof(libxl_device_model_starting), 1);
keir@20598 918 (*starting_r)->domid = info->domid;
keir@20594 919 (*starting_r)->dom_path = libxl_xs_get_dompath(ctx, info->domid);
keir@20594 920 (*starting_r)->for_spawn = NULL;
keir@20594 921 }
keir@20594 922
keir@20542 923 free(args);
keir@20542 924 return 0;
keir@20542 925 }
keir@20542 926
keir@20462 927 int libxl_create_device_model(struct libxl_ctx *ctx,
keir@20462 928 libxl_device_model_info *info,
keir@20542 929 libxl_device_disk *disks, int num_disks,
keir@20514 930 libxl_device_nic *vifs, int num_vifs,
keir@20514 931 libxl_device_model_starting **starting_r)
keir@20462 932 {
keir@20546 933 char *path, *logfile;
keir@20514 934 int logfile_w, null;
keir@20546 935 int rc;
keir@20462 936 char **args;
keir@20594 937 struct libxl_device_model_starting buf_starting, *p;
keir@20514 938
keir@20542 939 if (strstr(info->device_model, "stubdom-dm")) {
keir@20542 940 libxl_device_vfb vfb;
keir@20542 941 libxl_device_vkb vkb;
keir@20542 942
keir@20542 943 libxl_vfb_and_vkb_from_device_model_info(ctx, info, &vfb, &vkb);
keir@20542 944 return libxl_create_stubdom(ctx, info, disks, num_disks, vifs, num_vifs, &vfb, &vkb, starting_r);
keir@20542 945 }
keir@20542 946
keir@20462 947 args = libxl_build_device_model_args(ctx, info, vifs, num_vifs);
keir@20462 948 if (!args)
keir@20462 949 return ERROR_FAIL;
keir@20462 950
keir@20462 951 path = libxl_sprintf(ctx, "/local/domain/0/device-model/%d", info->domid);
keir@20462 952 xs_mkdir(ctx->xsh, XBT_NULL, path);
keir@20462 953
keir@20546 954 libxl_create_logfile(ctx, libxl_sprintf(ctx, "qemu-dm-%s", info->dom_name), &logfile);
keir@20467 955 logfile_w = open(logfile, O_WRONLY|O_CREAT, 0644);
keir@20546 956 free(logfile);
keir@20462 957 null = open("/dev/null", O_RDONLY);
keir@20514 958
keir@20514 959 if (starting_r) {
keir@20516 960 rc = ERROR_NOMEM;
keir@20594 961 *starting_r = libxl_calloc(ctx, sizeof(libxl_device_model_starting), 1);
keir@20516 962 if (!*starting_r) goto xit;
keir@20594 963 p = *starting_r;
keir@20611 964 p->for_spawn = libxl_calloc(ctx, sizeof(struct libxl_spawn_starting), 1);
keir@20594 965 } else {
keir@20594 966 p = &buf_starting;
keir@20594 967 p->for_spawn = NULL;
keir@20594 968 }
keir@20514 969
keir@20594 970 p->domid = info->domid;
keir@20594 971 p->dom_path = libxl_xs_get_dompath(ctx, info->domid);
keir@20594 972 if (!p->dom_path) { libxl_free(ctx, p); return ERROR_FAIL; }
keir@20594 973
keir@20594 974 rc = libxl_spawn_spawn(ctx, p, "device model", dm_xenstore_record_pid);
keir@20514 975 if (rc < 0) goto xit;
keir@20514 976 if (!rc) { /* inner child */
keir@20833 977 libxl_exec(null, logfile_w, logfile_w,
keir@20514 978 info->device_model, args);
keir@20514 979 }
keir@20514 980
keir@20514 981 rc = 0;
keir@20514 982 xit:
keir@20516 983 free(args);
keir@20462 984 close(null);
keir@20462 985 close(logfile_w);
keir@20462 986
keir@20514 987 return rc;
keir@20514 988 }
keir@20514 989
keir@20514 990 int libxl_detach_device_model(struct libxl_ctx *ctx,
keir@20779 991 libxl_device_model_starting *starting)
keir@20779 992 {
keir@20514 993 int rc;
keir@20594 994 rc = libxl_spawn_detach(ctx, starting->for_spawn);
keir@20594 995 if (starting->for_spawn) libxl_free(ctx, starting->for_spawn);
keir@20514 996 libxl_free(ctx, starting);
keir@20514 997 return rc;
keir@20514 998 }
keir@20462 999
keir@20514 1000
keir@20514 1001 int libxl_confirm_device_model_startup(struct libxl_ctx *ctx,
keir@20779 1002 libxl_device_model_starting *starting)
keir@20779 1003 {
keir@20514 1004 int problem = libxl_wait_for_device_model(ctx, starting->domid, "running",
keir@20514 1005 libxl_spawn_check,
keir@20594 1006 starting->for_spawn);
keir@20514 1007 int detach = libxl_detach_device_model(ctx, starting);
keir@20514 1008 return problem ? problem : detach;
keir@20542 1009 return 0;
keir@20462 1010 }
keir@20462 1011
keir@20514 1012
keir@20462 1013 /******************************************************************************/
keir@20566 1014
keir@20566 1015 static int is_blktap2_supported(void)
keir@20566 1016 {
keir@20566 1017 char buf[1024];
keir@20566 1018 FILE *f = fopen("/proc/devices", "r");
keir@20566 1019
keir@20566 1020
keir@20566 1021 while (fgets(buf, sizeof(buf), f) != NULL) {
keir@20566 1022 if (strstr(buf, "blktap2")) {
keir@20566 1023 fclose(f);
keir@20566 1024 return 1;
keir@20566 1025 }
keir@20566 1026 }
keir@20566 1027 fclose(f);
keir@20566 1028 return 0;
keir@20566 1029 }
keir@20566 1030
keir@20566 1031 static char *get_blktap2_device(struct libxl_ctx *ctx, char *name, char *type)
keir@20566 1032 {
keir@20566 1033 char buf[1024];
keir@20566 1034 char *p;
keir@20566 1035 int devnum;
keir@20566 1036 FILE *f = fopen("/sys/class/blktap2/devices", "r");
keir@20566 1037
keir@20566 1038
keir@20566 1039 while (!feof(f)) {
keir@20566 1040 fscanf(f, "%d %s", &devnum, buf);
keir@20566 1041 p = strchr(buf, ':');
keir@20571 1042 if (p == NULL)
keir@20571 1043 continue;
keir@20566 1044 p++;
keir@20566 1045 if (!strcmp(p, name) && !strncmp(buf, type, 3)) {
keir@20566 1046 fclose(f);
keir@20566 1047 return libxl_sprintf(ctx, "/dev/xen/blktap-2/tapdev%d", devnum);
keir@20566 1048 }
keir@20566 1049 }
keir@20566 1050 fclose(f);
keir@20566 1051 return NULL;
keir@20566 1052 }
keir@20566 1053
keir@20462 1054 int libxl_device_disk_add(struct libxl_ctx *ctx, uint32_t domid, libxl_device_disk *disk)
keir@20462 1055 {
keir@20462 1056 flexarray_t *front;
keir@20462 1057 flexarray_t *back;
keir@20462 1058 char *backend_type;
keir@20462 1059 unsigned int boffset = 0;
keir@20462 1060 unsigned int foffset = 0;
keir@20462 1061 int devid;
keir@20462 1062 libxl_device device;
keir@20566 1063 int major, minor;
keir@20462 1064
keir@20462 1065 front = flexarray_make(16, 1);
keir@20462 1066 if (!front)
keir@20462 1067 return ERROR_NOMEM;
keir@20462 1068 back = flexarray_make(16, 1);
keir@20462 1069 if (!back) /* leaks front if error */
keir@20462 1070 return ERROR_NOMEM;
keir@20462 1071
keir@20462 1072 backend_type = device_disk_backend_type_of_phystype(disk->phystype);
keir@20462 1073 devid = device_disk_dev_number(disk->virtpath);
keir@20462 1074
keir@20462 1075 device.backend_devid = devid;
keir@20462 1076 device.backend_domid = disk->backend_domid;
keir@20462 1077 device.devid = devid;
keir@20462 1078 device.domid = disk->domid;
keir@20462 1079 device.kind = DEVICE_VBD;
keir@20462 1080
keir@20462 1081 switch (disk->phystype) {
keir@20462 1082 case PHYSTYPE_PHY: {
keir@20462 1083
keir@20509 1084 device_physdisk_major_minor(disk->physpath, &major, &minor);
keir@20516 1085 flexarray_set(back, boffset++, "physical-device");
keir@20462 1086 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%x:%x", major, minor));
keir@20462 1087
keir@20516 1088 flexarray_set(back, boffset++, "params");
keir@20516 1089 flexarray_set(back, boffset++, disk->physpath);
keir@20462 1090
keir@20462 1091 device.backend_kind = DEVICE_VBD;
keir@20462 1092 break;
keir@20462 1093 }
keir@20566 1094 case PHYSTYPE_FILE:
keir@20566 1095 /* let's pretend is tap:aio for the moment */
keir@20566 1096 disk->phystype = PHYSTYPE_AIO;
keir@20462 1097 case PHYSTYPE_AIO: case PHYSTYPE_QCOW: case PHYSTYPE_QCOW2: case PHYSTYPE_VHD:
keir@20566 1098 if (is_blktap2_supported()) {
keir@20566 1099 int rc, c, p[2], tot;
keir@20566 1100 char buf[1024], *dev;
keir@20779 1101 dev = get_blktap2_device(ctx, disk->physpath, device_disk_string_of_phystype(disk->phystype));
keir@20779 1102 if (dev == NULL) {
keir@20566 1103 if (pipe(p) < 0) {
keir@20566 1104 XL_LOG(ctx, XL_LOG_ERROR, "Failed to create a pipe");
keir@20566 1105 return -1;
keir@20566 1106 }
keir@20566 1107 rc = fork();
keir@20566 1108 if (rc < 0) {
keir@20566 1109 XL_LOG(ctx, XL_LOG_ERROR, "Failed to fork a new process");
keir@20566 1110 return -1;
keir@20566 1111 } else if (!rc) { /* child */
keir@20566 1112 int null_r, null_w;
keir@20566 1113 char *args[4];
keir@20566 1114 args[0] = "tapdisk2";
keir@20566 1115 args[1] = "-n";
keir@20566 1116 args[2] = libxl_sprintf(ctx, "%s:%s", device_disk_string_of_phystype(disk->phystype), disk->physpath);
keir@20566 1117 args[3] = NULL;
keir@20566 1118
keir@20566 1119 null_r = open("/dev/null", O_RDONLY);
keir@20566 1120 null_w = open("/dev/null", O_WRONLY);
keir@20833 1121 libxl_exec(null_r, p[1], null_w, "/usr/sbin/tapdisk2", args);
keir@20566 1122 XL_LOG(ctx, XL_LOG_ERROR, "Error execing tapdisk2");
keir@20566 1123 }
keir@20566 1124 close(p[1]);
keir@20566 1125 tot = 0;
keir@20566 1126 while ((c = read(p[0], buf + tot, sizeof(buf) - tot)) > 0)
keir@20566 1127 tot = tot + c;
keir@20566 1128 close(p[0]);
keir@20566 1129 buf[tot - 1] = '\0';
keir@20566 1130 dev = buf;
keir@20566 1131 }
keir@20566 1132 flexarray_set(back, boffset++, "tapdisk-params");
keir@20566 1133 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%s:%s", device_disk_string_of_phystype(disk->phystype), disk->physpath));
keir@20566 1134 flexarray_set(back, boffset++, "params");
keir@20566 1135 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%s", dev));
keir@20566 1136 backend_type = "phy";
keir@20566 1137 device_physdisk_major_minor(dev, &major, &minor);
keir@20566 1138 flexarray_set(back, boffset++, "physical-device");
keir@20566 1139 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%x:%x", major, minor));
keir@20566 1140 device.backend_kind = DEVICE_VBD;
keir@20566 1141
keir@20566 1142 break;
keir@20566 1143 }
keir@20516 1144 flexarray_set(back, boffset++, "params");
keir@20462 1145 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%s:%s",
keir@20462 1146 device_disk_string_of_phystype(disk->phystype), disk->physpath));
keir@20462 1147
keir@20462 1148 device.backend_kind = DEVICE_TAP;
keir@20462 1149 break;
keir@20462 1150 }
keir@20462 1151
keir@20516 1152 flexarray_set(back, boffset++, "frontend-id");
keir@20462 1153 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", disk->domid));
keir@20516 1154 flexarray_set(back, boffset++, "online");
keir@20516 1155 flexarray_set(back, boffset++, "1");
keir@20516 1156 flexarray_set(back, boffset++, "removable");
keir@20462 1157 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", (disk->unpluggable) ? 1 : 0));
keir@20516 1158 flexarray_set(back, boffset++, "bootable");
keir@20509 1159 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", 1));
keir@20516 1160 flexarray_set(back, boffset++, "state");
keir@20462 1161 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", 1));
keir@20516 1162 flexarray_set(back, boffset++, "dev");
keir@20516 1163 flexarray_set(back, boffset++, disk->virtpath);
keir@20516 1164 flexarray_set(back, boffset++, "type");
keir@20516 1165 flexarray_set(back, boffset++, backend_type);
keir@20516 1166 flexarray_set(back, boffset++, "mode");
keir@20516 1167 flexarray_set(back, boffset++, disk->readwrite ? "w" : "r");
keir@20462 1168
keir@20516 1169 flexarray_set(front, foffset++, "backend-id");
keir@20462 1170 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", disk->backend_domid));
keir@20516 1171 flexarray_set(front, foffset++, "state");
keir@20462 1172 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", 1));
keir@20516 1173 flexarray_set(front, foffset++, "virtual-device");
keir@20462 1174 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", devid));
keir@20516 1175 flexarray_set(front, foffset++, "device-type");
keir@20516 1176 flexarray_set(front, foffset++, disk->is_cdrom ? "cdrom" : "disk");
keir@20462 1177
keir@20462 1178 if (0 /* protocol != native*/) {
keir@20516 1179 flexarray_set(front, foffset++, "protocol");
keir@20516 1180 flexarray_set(front, foffset++, "x86_32-abi"); /* hardcoded ! */
keir@20462 1181 }
keir@20462 1182
keir@20462 1183 libxl_device_generic_add(ctx, &device,
keir@20462 1184 libxl_xs_kvs_of_flexarray(ctx, back, boffset),
keir@20462 1185 libxl_xs_kvs_of_flexarray(ctx, front, foffset));
keir@20516 1186 flexarray_free(back);
keir@20516 1187 flexarray_free(front);
keir@20462 1188 return 0;
keir@20462 1189 }
keir@20462 1190
keir@20626 1191 int libxl_device_disk_del(struct libxl_ctx *ctx,
keir@20626 1192 libxl_device_disk *disk, int wait)
keir@20462 1193 {
keir@20626 1194 libxl_device device;
keir@20626 1195 int devid;
keir@20462 1196
keir@20626 1197 devid = device_disk_dev_number(disk->virtpath);
keir@20626 1198 device.backend_domid = disk->backend_domid;
keir@20626 1199 device.backend_devid = devid;
keir@20626 1200 device.backend_kind =
keir@20626 1201 (disk->phystype == PHYSTYPE_PHY) ? DEVICE_VBD : DEVICE_TAP;
keir@20626 1202 device.domid = disk->domid;
keir@20626 1203 device.devid = devid;
keir@20626 1204 device.kind = DEVICE_VBD;
keir@20626 1205 return libxl_device_del(ctx, &device, wait);
keir@20462 1206 }
keir@20462 1207
keir@20462 1208 /******************************************************************************/
keir@20462 1209 int libxl_device_nic_add(struct libxl_ctx *ctx, uint32_t domid, libxl_device_nic *nic)
keir@20462 1210 {
keir@20462 1211 flexarray_t *front;
keir@20462 1212 flexarray_t *back;
keir@20462 1213 unsigned int boffset = 0;
keir@20462 1214 unsigned int foffset = 0;
keir@20462 1215 libxl_device device;
keir@20462 1216
keir@20462 1217 front = flexarray_make(16, 1);
keir@20462 1218 if (!front)
keir@20462 1219 return ERROR_NOMEM;
keir@20462 1220 back = flexarray_make(16, 1);
keir@20462 1221 if (!back)
keir@20462 1222 return ERROR_NOMEM;
keir@20462 1223
keir@20462 1224 device.backend_devid = nic->devid;
keir@20462 1225 device.backend_domid = nic->backend_domid;
keir@20462 1226 device.backend_kind = DEVICE_VIF;
keir@20462 1227 device.devid = nic->devid;
keir@20462 1228 device.domid = nic->domid;
keir@20462 1229 device.kind = DEVICE_VIF;
keir@20462 1230
keir@20516 1231 flexarray_set(back, boffset++, "frontend-id");
keir@20462 1232 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", nic->domid));
keir@20516 1233 flexarray_set(back, boffset++, "online");
keir@20516 1234 flexarray_set(back, boffset++, "1");
keir@20516 1235 flexarray_set(back, boffset++, "state");
keir@20462 1236 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", 1));
keir@20516 1237 flexarray_set(back, boffset++, "script");
keir@20516 1238 flexarray_set(back, boffset++, nic->script);
keir@20516 1239 flexarray_set(back, boffset++, "mac");
keir@20462 1240 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%02x:%02x:%02x:%02x:%02x:%02x",
keir@20462 1241 nic->mac[0], nic->mac[1], nic->mac[2],
keir@20462 1242 nic->mac[3], nic->mac[4], nic->mac[5]));
keir@20516 1243 flexarray_set(back, boffset++, "handle");
keir@20462 1244 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", nic->devid));
keir@20462 1245
keir@20516 1246 flexarray_set(front, foffset++, "backend-id");
keir@20462 1247 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", nic->backend_domid));
keir@20516 1248 flexarray_set(front, foffset++, "state");
keir@20462 1249 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", 1));
keir@20516 1250 flexarray_set(front, foffset++, "handle");
keir@20462 1251 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", nic->devid));
keir@20516 1252 flexarray_set(front, foffset++, "mac");
keir@20462 1253 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%02x:%02x:%02x:%02x:%02x:%02x",
keir@20462 1254 nic->mac[0], nic->mac[1], nic->mac[2],
keir@20462 1255 nic->mac[3], nic->mac[4], nic->mac[5]));
keir@20462 1256 if (0 /* protocol != native*/) {
keir@20516 1257 flexarray_set(front, foffset++, "protocol");
keir@20516 1258 flexarray_set(front, foffset++, "x86_32-abi"); /* hardcoded ! */
keir@20462 1259 }
keir@20462 1260
keir@20462 1261 libxl_device_generic_add(ctx, &device,
keir@20462 1262 libxl_xs_kvs_of_flexarray(ctx, back, boffset),
keir@20462 1263 libxl_xs_kvs_of_flexarray(ctx, front, foffset));
keir@20462 1264
keir@20462 1265 /* FIXME: wait for plug */
keir@20516 1266 flexarray_free(back);
keir@20516 1267 flexarray_free(front);
keir@20462 1268 return 0;
keir@20462 1269 }
keir@20462 1270
keir@20626 1271 int libxl_device_nic_del(struct libxl_ctx *ctx,
keir@20626 1272 libxl_device_nic *nic, int wait)
keir@20462 1273 {
keir@20626 1274 libxl_device device;
keir@20462 1275
keir@20626 1276 device.backend_devid = nic->devid;
keir@20626 1277 device.backend_domid = nic->backend_domid;
keir@20626 1278 device.backend_kind = DEVICE_VIF;
keir@20626 1279 device.devid = nic->devid;
keir@20626 1280 device.domid = nic->domid;
keir@20626 1281 device.kind = DEVICE_VIF;
keir@20626 1282
keir@20626 1283 return libxl_device_del(ctx, &device, wait);
keir@20462 1284 }
keir@20462 1285
keir@20462 1286 /******************************************************************************/
keir@20509 1287 int libxl_device_console_add(struct libxl_ctx *ctx, uint32_t domid, libxl_device_console *console)
keir@20462 1288 {
keir@20509 1289 flexarray_t *front;
keir@20509 1290 flexarray_t *back;
keir@20509 1291 unsigned int boffset = 0;
keir@20509 1292 unsigned int foffset = 0;
keir@20509 1293 libxl_device device;
keir@20509 1294
keir@20509 1295 if (console->build_state) {
keir@20509 1296 xs_transaction_t t;
keir@20509 1297 char **ents = (char **) libxl_calloc(ctx, 9, sizeof(char *));
keir@20516 1298 ents[0] = "console/port";
keir@20509 1299 ents[1] = libxl_sprintf(ctx, "%"PRIu32, console->build_state->console_port);
keir@20516 1300 ents[2] = "console/ring-ref";
keir@20509 1301 ents[3] = libxl_sprintf(ctx, "%lu", console->build_state->console_mfn);
keir@20516 1302 ents[4] = "console/limit";
keir@20509 1303 ents[5] = libxl_sprintf(ctx, "%d", LIBXL_XENCONSOLE_LIMIT);
keir@20516 1304 ents[6] = "console/type";
keir@20509 1305 if (console->constype == CONSTYPE_XENCONSOLED)
keir@20509 1306 ents[7] = "xenconsoled";
keir@20509 1307 else
keir@20509 1308 ents[7] = "ioemu";
keir@20509 1309 retry_transaction:
keir@20509 1310 t = xs_transaction_start(ctx->xsh);
keir@20516 1311 libxl_xs_writev(ctx, t, libxl_xs_get_dompath(ctx, console->domid), ents);
keir@20509 1312 if (!xs_transaction_end(ctx->xsh, t, 0))
keir@20509 1313 if (errno == EAGAIN)
keir@20509 1314 goto retry_transaction;
keir@20509 1315 }
keir@20509 1316
keir@20509 1317 front = flexarray_make(16, 1);
keir@20509 1318 if (!front)
keir@20509 1319 return ERROR_NOMEM;
keir@20509 1320 back = flexarray_make(16, 1);
keir@20509 1321 if (!back)
keir@20509 1322 return ERROR_NOMEM;
keir@20509 1323
keir@20509 1324 device.backend_devid = console->devid;
keir@20509 1325 device.backend_domid = console->backend_domid;
keir@20509 1326 device.backend_kind = DEVICE_CONSOLE;
keir@20509 1327 device.devid = console->devid;
keir@20509 1328 device.domid = console->domid;
keir@20509 1329 device.kind = DEVICE_CONSOLE;
keir@20509 1330
keir@20516 1331 flexarray_set(back, boffset++, "frontend-id");
keir@20509 1332 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", console->domid));
keir@20516 1333 flexarray_set(back, boffset++, "online");
keir@20516 1334 flexarray_set(back, boffset++, "1");
keir@20516 1335 flexarray_set(back, boffset++, "state");
keir@20509 1336 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", 1));
keir@20516 1337 flexarray_set(back, boffset++, "domain");
keir@20516 1338 flexarray_set(back, boffset++, libxl_domid_to_name(ctx, domid));
keir@20516 1339 flexarray_set(back, boffset++, "protocol");
keir@20516 1340 flexarray_set(back, boffset++, LIBXL_XENCONSOLE_PROTOCOL);
keir@20509 1341
keir@20516 1342 flexarray_set(front, foffset++, "backend-id");
keir@20509 1343 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", console->backend_domid));
keir@20516 1344 flexarray_set(front, foffset++, "state");
keir@20509 1345 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", 1));
keir@20516 1346 flexarray_set(front, foffset++, "limit");
keir@20509 1347 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", LIBXL_XENCONSOLE_LIMIT));
keir@20516 1348 flexarray_set(front, foffset++, "protocol");
keir@20516 1349 flexarray_set(front, foffset++, LIBXL_XENCONSOLE_PROTOCOL);
keir@20516 1350 flexarray_set(front, foffset++, "type");
keir@20509 1351 if (console->constype == CONSTYPE_XENCONSOLED)
keir@20516 1352 flexarray_set(front, foffset++, "xenconsoled");
keir@20509 1353 else
keir@20516 1354 flexarray_set(front, foffset++, "ioemu");
keir@20509 1355
keir@20509 1356 libxl_device_generic_add(ctx, &device,
keir@20509 1357 libxl_xs_kvs_of_flexarray(ctx, back, boffset),
keir@20509 1358 libxl_xs_kvs_of_flexarray(ctx, front, foffset));
keir@20516 1359 flexarray_free(back);
keir@20516 1360 flexarray_free(front);
keir@20509 1361
keir@20509 1362 return 0;
keir@20509 1363 }
keir@20509 1364
keir@20509 1365 /******************************************************************************/
keir@20509 1366 int libxl_device_vkb_add(struct libxl_ctx *ctx, uint32_t domid, libxl_device_vkb *vkb)
keir@20509 1367 {
keir@20509 1368 flexarray_t *front;
keir@20509 1369 flexarray_t *back;
keir@20509 1370 unsigned int boffset = 0;
keir@20509 1371 unsigned int foffset = 0;
keir@20509 1372 libxl_device device;
keir@20509 1373
keir@20509 1374 front = flexarray_make(16, 1);
keir@20509 1375 if (!front)
keir@20509 1376 return ERROR_NOMEM;
keir@20509 1377 back = flexarray_make(16, 1);
keir@20509 1378 if (!back)
keir@20509 1379 return ERROR_NOMEM;
keir@20509 1380
keir@20509 1381 device.backend_devid = vkb->devid;
keir@20509 1382 device.backend_domid = vkb->backend_domid;
keir@20509 1383 device.backend_kind = DEVICE_VKBD;
keir@20509 1384 device.devid = vkb->devid;
keir@20509 1385 device.domid = vkb->domid;
keir@20509 1386 device.kind = DEVICE_VKBD;
keir@20509 1387
keir@20516 1388 flexarray_set(back, boffset++, "frontend-id");
keir@20509 1389 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", vkb->domid));
keir@20516 1390 flexarray_set(back, boffset++, "online");
keir@20516 1391 flexarray_set(back, boffset++, "1");
keir@20516 1392 flexarray_set(back, boffset++, "state");
keir@20509 1393 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", 1));
keir@20516 1394 flexarray_set(back, boffset++, "domain");
keir@20516 1395 flexarray_set(back, boffset++, libxl_domid_to_name(ctx, domid));
keir@20509 1396
keir@20516 1397 flexarray_set(front, foffset++, "backend-id");
keir@20509 1398 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", vkb->backend_domid));
keir@20516 1399 flexarray_set(front, foffset++, "state");
keir@20509 1400 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", 1));
keir@20509 1401
keir@20509 1402 libxl_device_generic_add(ctx, &device,
keir@20509 1403 libxl_xs_kvs_of_flexarray(ctx, back, boffset),
keir@20509 1404 libxl_xs_kvs_of_flexarray(ctx, front, foffset));
keir@20516 1405 flexarray_free(back);
keir@20516 1406 flexarray_free(front);
keir@20509 1407
keir@20509 1408 return 0;
keir@20462 1409 }
keir@20462 1410
keir@20462 1411 int libxl_device_vkb_clean_shutdown(struct libxl_ctx *ctx, uint32_t domid)
keir@20462 1412 {
keir@20462 1413 return ERROR_NI;
keir@20462 1414 }
keir@20462 1415
keir@20462 1416 int libxl_device_vkb_hard_shutdown(struct libxl_ctx *ctx, uint32_t domid)
keir@20462 1417 {
keir@20462 1418 return ERROR_NI;
keir@20462 1419 }
keir@20462 1420
keir@20637 1421 libxl_device_disk *libxl_device_disk_list(struct libxl_ctx *ctx, uint32_t domid, int *num)
keir@20637 1422 {
keir@20637 1423 char *be_path_tap, *be_path_vbd;
keir@20637 1424 libxl_device_disk *disks = NULL;
keir@20637 1425 char **l = NULL;
keir@20637 1426 unsigned int numl;
keir@20637 1427 int num_disks = 0, i;
keir@20637 1428 char *type;
keir@20637 1429
keir@20637 1430 be_path_vbd = libxl_sprintf(ctx, "%s/backend/vbd/%d", libxl_xs_get_dompath(ctx, 0), domid);
keir@20637 1431 be_path_tap = libxl_sprintf(ctx, "%s/backend/tap/%d", libxl_xs_get_dompath(ctx, 0), domid);
keir@20637 1432
keir@20637 1433 l = libxl_xs_directory(ctx, XBT_NULL, be_path_vbd, &numl);
keir@20637 1434 if (l) {
keir@20637 1435 num_disks += numl;
keir@20637 1436 disks = realloc(disks, sizeof(libxl_device_disk) * num_disks);
keir@20637 1437 for (i = 0; i < numl; i++) {
keir@20637 1438 disks[i].backend_domid = 0;
keir@20637 1439 disks[i].domid = domid;
keir@20637 1440 disks[i].physpath = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/%s/params", be_path_vbd, l[i]));
keir@20637 1441 libxl_string_to_phystype(ctx, libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/%s/type", be_path_vbd, l[i])), &(disks[i].phystype));
keir@20637 1442 disks[i].virtpath = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/%s/dev", be_path_vbd, l[i]));
keir@20637 1443 disks[i].unpluggable = atoi(libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/%s/removable", be_path_vbd, l[i])));
keir@20637 1444 if (!strcmp(libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/%s/mode", be_path_vbd, l[i])), "w"))
keir@20637 1445 disks[i].readwrite = 1;
keir@20637 1446 else
keir@20637 1447 disks[i].readwrite = 0;
keir@20637 1448 type = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/device-type", libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/%s/frontend", be_path_vbd, l[i]))));
keir@20637 1449 disks[i].is_cdrom = !strcmp(type, "cdrom");
keir@20637 1450 }
keir@20637 1451 free(l);
keir@20637 1452 }
keir@20637 1453 l = libxl_xs_directory(ctx, XBT_NULL, be_path_tap, &numl);
keir@20637 1454 if (l) {
keir@20637 1455 num_disks += numl;
keir@20637 1456 disks = realloc(disks, sizeof(libxl_device_disk) * num_disks);
keir@20637 1457 for (i = 0; i < numl; i++) {
keir@20637 1458 disks[i].backend_domid = 0;
keir@20637 1459 disks[i].domid = domid;
keir@20637 1460 disks[i].physpath = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/%s/params", be_path_tap, l[i]));
keir@20637 1461 libxl_string_to_phystype(ctx, libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/%s/type", be_path_tap, l[i])), &(disks[i].phystype));
keir@20637 1462 disks[i].virtpath = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/%s/dev", be_path_tap, l[i]));
keir@20637 1463 disks[i].unpluggable = atoi(libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/%s/removable", be_path_tap, l[i])));
keir@20637 1464 if (!strcmp(libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/%s/mode", be_path_tap, l[i])), "w"))
keir@20637 1465 disks[i].readwrite = 1;
keir@20637 1466 else
keir@20637 1467 disks[i].readwrite = 0;
keir@20637 1468 type = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/device-type", libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/%s/frontend", be_path_vbd, l[i]))));
keir@20637 1469 disks[i].is_cdrom = !strcmp(type, "cdrom");
keir@20637 1470 }
keir@20637 1471 free(l);
keir@20637 1472 }
keir@20637 1473 *num = num_disks;
keir@20637 1474 return disks;
keir@20637 1475 }
keir@20637 1476
keir@20637 1477 int libxl_cdrom_insert(struct libxl_ctx *ctx, uint32_t domid, libxl_device_disk *disk)
keir@20637 1478 {
keir@20637 1479 int num, i;
keir@20637 1480 uint32_t stubdomid;
keir@20637 1481 libxl_device_disk *disks;
keir@20637 1482
keir@20637 1483 if (!disk->physpath) {
keir@20637 1484 disk->physpath = "";
keir@20637 1485 disk->phystype = PHYSTYPE_PHY;
keir@20637 1486 }
keir@20637 1487 disks = libxl_device_disk_list(ctx, domid, &num);
keir@20637 1488 for (i = 0; i < num; i++) {
keir@20637 1489 if (disks[i].is_cdrom && !strcmp(disk->virtpath, disks[i].virtpath))
keir@20637 1490 /* found */
keir@20637 1491 break;
keir@20637 1492 }
keir@20637 1493 if (i == num) {
keir@20637 1494 XL_LOG(ctx, XL_LOG_ERROR, "Virtual device not found");
keir@20637 1495 return -1;
keir@20637 1496 }
keir@20637 1497 libxl_device_disk_del(ctx, disks + i, 1);
keir@20637 1498 libxl_device_disk_add(ctx, domid, disk);
keir@20637 1499 stubdomid = libxl_get_stubdom_id(ctx, domid);
keir@20637 1500 if (stubdomid) {
keir@20781 1501 disks[i].domid = stubdomid;
keir@20637 1502 libxl_device_disk_del(ctx, disks + i, 1);
keir@20781 1503 disk->domid = stubdomid;
keir@20637 1504 libxl_device_disk_add(ctx, stubdomid, disk);
keir@20781 1505 disk->domid = domid;
keir@20637 1506 }
keir@20637 1507 return 0;
keir@20637 1508 }
keir@20637 1509
keir@20462 1510 /******************************************************************************/
keir@20509 1511 static int libxl_build_xenpv_qemu_args(struct libxl_ctx *ctx,
keir@20509 1512 libxl_device_vfb *vfb,
keir@20509 1513 int num_console,
keir@20509 1514 libxl_device_console *console,
keir@20509 1515 libxl_device_model_info *info) {
keir@20509 1516 int i = 0, j = 0, num = 0;
keir@20509 1517 memset(info, 0x00, sizeof(libxl_device_model_info));
keir@20509 1518
keir@20509 1519 info->vnc = vfb->vnc;
keir@20509 1520 if (vfb->vnclisten)
keir@20509 1521 info->vnclisten = libxl_sprintf(ctx, "%s", vfb->vnclisten);
keir@20509 1522 info->vncdisplay = vfb->vncdisplay;
keir@20509 1523 info->vncunused = vfb->vncunused;
keir@20509 1524 if (vfb->keymap)
keir@20509 1525 info->keymap = libxl_sprintf(ctx, "%s", vfb->keymap);
keir@20509 1526 info->sdl = vfb->sdl;
keir@20509 1527 info->opengl = vfb->opengl;
keir@20509 1528 for (i = 0; i < num_console; i++) {
keir@20509 1529 if (console->constype == CONSTYPE_IOEMU)
keir@20509 1530 num++;
keir@20509 1531 }
keir@20509 1532 if (num > 0) {
keir@20599 1533 uint32_t guest_domid = libxl_is_stubdom(ctx, vfb->domid);
keir@20599 1534 if (guest_domid) {
keir@20599 1535 char *filename;
keir@20599 1536 char *name = libxl_sprintf(ctx, "qemu-dm-%s", libxl_domid_to_name(ctx, guest_domid));
keir@20599 1537 libxl_create_logfile(ctx, name, &filename);
keir@20599 1538 info->serial = libxl_sprintf(ctx, "file:%s", filename);
keir@20599 1539 free(filename);
keir@20599 1540 } else {
keir@20599 1541 info->serial = "pty";
keir@20599 1542 }
keir@20509 1543 num--;
keir@20509 1544 }
keir@20509 1545 if (num > 0) {
keir@20509 1546 info->extra = (char **) libxl_calloc(ctx, num * 2 + 1, sizeof(char *));
keir@20509 1547 for (j = 0; j < num * 2; j = j + 2) {
keir@20509 1548 info->extra[j] = "-serial";
keir@20509 1549 info->extra[j + 1] = "pty";
keir@20509 1550 }
keir@20509 1551 info->extra[j] = NULL;
keir@20509 1552 }
keir@20509 1553 info->domid = vfb->domid;
keir@20509 1554 info->dom_name = libxl_domid_to_name(ctx, vfb->domid);
keir@20509 1555 info->device_model = "/usr/lib/xen/bin/qemu-dm";
keir@20509 1556 info->type = XENPV;
keir@20509 1557 return 0;
keir@20509 1558 }
keir@20509 1559
keir@20509 1560 int libxl_create_xenpv_qemu(struct libxl_ctx *ctx, libxl_device_vfb *vfb,
keir@20514 1561 int num_console, libxl_device_console *console,
keir@20514 1562 struct libxl_device_model_starting **starting_r)
keir@20509 1563 {
keir@20509 1564 libxl_device_model_info info;
keir@20509 1565
keir@20509 1566 libxl_build_xenpv_qemu_args(ctx, vfb, num_console, console, &info);
keir@20542 1567 libxl_create_device_model(ctx, &info, NULL, 0, NULL, 0, starting_r);
keir@20509 1568 return 0;
keir@20509 1569 }
keir@20509 1570
keir@20509 1571 int libxl_device_vfb_add(struct libxl_ctx *ctx, uint32_t domid, libxl_device_vfb *vfb)
keir@20462 1572 {
keir@20509 1573 flexarray_t *front;
keir@20509 1574 flexarray_t *back;
keir@20509 1575 unsigned int boffset = 0;
keir@20509 1576 unsigned int foffset = 0;
keir@20509 1577 libxl_device device;
keir@20509 1578
keir@20509 1579 front = flexarray_make(16, 1);
keir@20509 1580 if (!front)
keir@20509 1581 return ERROR_NOMEM;
keir@20509 1582 back = flexarray_make(16, 1);
keir@20509 1583 if (!back)
keir@20509 1584 return ERROR_NOMEM;
keir@20509 1585
keir@20509 1586 device.backend_devid = vfb->devid;
keir@20509 1587 device.backend_domid = vfb->backend_domid;
keir@20509 1588 device.backend_kind = DEVICE_VFB;
keir@20509 1589 device.devid = vfb->devid;
keir@20509 1590 device.domid = vfb->domid;
keir@20509 1591 device.kind = DEVICE_VFB;
keir@20509 1592
keir@20516 1593 flexarray_set(back, boffset++, "frontend-id");
keir@20509 1594 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", vfb->domid));
keir@20516 1595 flexarray_set(back, boffset++, "online");
keir@20516 1596 flexarray_set(back, boffset++, "1");
keir@20516 1597 flexarray_set(back, boffset++, "state");
keir@20509 1598 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", 1));
keir@20516 1599 flexarray_set(back, boffset++, "domain");
keir@20516 1600 flexarray_set(back, boffset++, libxl_domid_to_name(ctx, domid));
keir@20516 1601 flexarray_set(back, boffset++, "vnc");
keir@20509 1602 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", vfb->vnc));
keir@20516 1603 flexarray_set(back, boffset++, "vnclisten");
keir@20516 1604 flexarray_set(back, boffset++, vfb->vnclisten);
keir@20516 1605 flexarray_set(back, boffset++, "vncdisplay");
keir@20509 1606 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", vfb->vncdisplay));
keir@20516 1607 flexarray_set(back, boffset++, "vncunused");
keir@20509 1608 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", vfb->vncunused));
keir@20516 1609 flexarray_set(back, boffset++, "sdl");
keir@20509 1610 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", vfb->sdl));
keir@20516 1611 flexarray_set(back, boffset++, "opengl");
keir@20509 1612 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", vfb->opengl));
keir@20509 1613 if (vfb->xauthority) {
keir@20516 1614 flexarray_set(back, boffset++, "xauthority");
keir@20516 1615 flexarray_set(back, boffset++, vfb->xauthority);
keir@20509 1616 }
keir@20509 1617 if (vfb->display) {
keir@20516 1618 flexarray_set(back, boffset++, "display");
keir@20516 1619 flexarray_set(back, boffset++, vfb->display);
keir@20509 1620 }
keir@20509 1621
keir@20516 1622 flexarray_set(front, foffset++, "backend-id");
keir@20509 1623 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", vfb->backend_domid));
keir@20516 1624 flexarray_set(front, foffset++, "state");
keir@20509 1625 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", 1));
keir@20509 1626
keir@20509 1627 libxl_device_generic_add(ctx, &device,
keir@20509 1628 libxl_xs_kvs_of_flexarray(ctx, back, boffset),
keir@20509 1629 libxl_xs_kvs_of_flexarray(ctx, front, foffset));
keir@20509 1630 flexarray_free(front);
keir@20509 1631 flexarray_free(back);
keir@20509 1632
keir@20509 1633 return 0;
keir@20462 1634 }
keir@20462 1635
keir@20462 1636 int libxl_device_vfb_clean_shutdown(struct libxl_ctx *ctx, uint32_t domid)
keir@20462 1637 {
keir@20462 1638 return ERROR_NI;
keir@20462 1639 }
keir@20462 1640
keir@20462 1641 int libxl_device_vfb_hard_shutdown(struct libxl_ctx *ctx, uint32_t domid)
keir@20462 1642 {
keir@20462 1643 return ERROR_NI;
keir@20462 1644 }
keir@20462 1645
keir@20462 1646 /******************************************************************************/
keir@20482 1647
keir@20482 1648 int libxl_device_pci_init(libxl_device_pci *pcidev, unsigned int domain,
keir@20482 1649 unsigned int bus, unsigned int dev,
keir@20482 1650 unsigned int func, unsigned int vdevfn)
keir@20482 1651 {
keir@20482 1652 pcidev->domain = domain;
keir@20482 1653 pcidev->bus = bus;
keir@20482 1654 pcidev->dev = dev;
keir@20482 1655 pcidev->func = func;
keir@20482 1656 pcidev->vdevfn = vdevfn;
keir@20482 1657 return 0;
keir@20482 1658 }
keir@20482 1659
keir@20482 1660 static int libxl_create_pci_backend(struct libxl_ctx *ctx, uint32_t domid, libxl_device_pci *pcidev, int num)
keir@20482 1661 {
keir@20482 1662 flexarray_t *front;
keir@20482 1663 flexarray_t *back;
keir@20482 1664 unsigned int boffset = 0;
keir@20482 1665 unsigned int foffset = 0;
keir@20482 1666 libxl_device device;
keir@20482 1667 int i;
keir@20482 1668
keir@20482 1669 front = flexarray_make(16, 1);
keir@20482 1670 if (!front)
keir@20482 1671 return ERROR_NOMEM;
keir@20482 1672 back = flexarray_make(16, 1);
keir@20482 1673 if (!back)
keir@20482 1674 return ERROR_NOMEM;
keir@20482 1675
keir@20512 1676 XL_LOG(ctx, XL_LOG_DEBUG, "Creating pci backend");
keir@20482 1677
keir@20482 1678 /* add pci device */
keir@20482 1679 device.backend_devid = 0;
keir@20482 1680 device.backend_domid = 0;
keir@20482 1681 device.backend_kind = DEVICE_PCI;
keir@20482 1682 device.devid = 0;
keir@20482 1683 device.domid = domid;
keir@20482 1684 device.kind = DEVICE_PCI;
keir@20482 1685
keir@20516 1686 flexarray_set(back, boffset++, "frontend-id");
keir@20482 1687 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", domid));
keir@20516 1688 flexarray_set(back, boffset++, "online");
keir@20516 1689 flexarray_set(back, boffset++, "1");
keir@20516 1690 flexarray_set(back, boffset++, "state");
keir@20482 1691 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", 1));
keir@20516 1692 flexarray_set(back, boffset++, "domain");
keir@20516 1693 flexarray_set(back, boffset++, libxl_domid_to_name(ctx, domid));
keir@20482 1694 for (i = 0; i < num; i++) {
keir@20482 1695 flexarray_set(back, boffset++, libxl_sprintf(ctx, "key-%d", i));
keir@20482 1696 flexarray_set(back, boffset++, libxl_sprintf(ctx, PCI_BDF, pcidev->domain, pcidev->bus, pcidev->dev, pcidev->func));
keir@20482 1697 flexarray_set(back, boffset++, libxl_sprintf(ctx, "dev-%d", i));
keir@20482 1698 flexarray_set(back, boffset++, libxl_sprintf(ctx, PCI_BDF, pcidev->domain, pcidev->bus, pcidev->dev, pcidev->func));
keir@20482 1699 if (pcidev->vdevfn) {
keir@20482 1700 flexarray_set(back, boffset++, libxl_sprintf(ctx, "vdevfn-%d", i));
keir@20482 1701 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%x", pcidev->vdevfn));
keir@20482 1702 }
keir@20482 1703 flexarray_set(back, boffset++, libxl_sprintf(ctx, "opts-%d", i));
keir@20482 1704 flexarray_set(back, boffset++, libxl_sprintf(ctx, "msitranslate=%d,power_mgmt=%d", pcidev->msitranslate, pcidev->power_mgmt));
keir@20482 1705 flexarray_set(back, boffset++, libxl_sprintf(ctx, "state-%d", i));
keir@20482 1706 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", 1));
keir@20482 1707 }
keir@20516 1708 flexarray_set(back, boffset++, "num_devs");
keir@20482 1709 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", num));
keir@20482 1710
keir@20516 1711 flexarray_set(front, foffset++, "backend-id");
keir@20482 1712 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", 0));
keir@20516 1713 flexarray_set(front, foffset++, "state");
keir@20482 1714 flexarray_set(front, foffset++, libxl_sprintf(ctx, "%d", 1));
keir@20482 1715
keir@20482 1716 libxl_device_generic_add(ctx, &device,
keir@20482 1717 libxl_xs_kvs_of_flexarray(ctx, back, boffset),
keir@20482 1718 libxl_xs_kvs_of_flexarray(ctx, front, foffset));
keir@20482 1719
keir@20482 1720 flexarray_free(back);
keir@20482 1721 flexarray_free(front);
keir@20482 1722 return 0;
keir@20482 1723 }
keir@20482 1724
keir@20482 1725 static int libxl_device_pci_add_xenstore(struct libxl_ctx *ctx, uint32_t domid, libxl_device_pci *pcidev)
keir@20462 1726 {
keir@20482 1727 flexarray_t *back;
keir@20482 1728 char *num_devs, *be_path;
keir@20482 1729 int num = 0;
keir@20482 1730 unsigned int boffset = 0;
keir@20482 1731 xs_transaction_t t;
keir@20482 1732
keir@20516 1733 be_path = libxl_sprintf(ctx, "%s/backend/pci/%d/0", libxl_xs_get_dompath(ctx, 0), domid);
keir@20482 1734 num_devs = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/num_devs", be_path));
keir@20482 1735 if (!num_devs)
keir@20482 1736 return libxl_create_pci_backend(ctx, domid, pcidev, 1);
keir@20482 1737
keir@20482 1738 if (!is_hvm(ctx, domid)) {
keir@20482 1739 if (libxl_wait_for_backend(ctx, be_path, "4") < 0)
keir@20482 1740 return -1;
keir@20482 1741 }
keir@20482 1742
keir@20482 1743 back = flexarray_make(16, 1);
keir@20482 1744 if (!back)
keir@20482 1745 return ERROR_NOMEM;
keir@20482 1746
keir@20512 1747 XL_LOG(ctx, XL_LOG_DEBUG, "Adding new pci device to xenstore");
keir@20482 1748 num = atoi(num_devs);
keir@20482 1749 flexarray_set(back, boffset++, libxl_sprintf(ctx, "key-%d", num));
keir@20482 1750 flexarray_set(back, boffset++, libxl_sprintf(ctx, PCI_BDF, pcidev->domain, pcidev->bus, pcidev->dev, pcidev->func));
keir@20482 1751 flexarray_set(back, boffset++, libxl_sprintf(ctx, "dev-%d", num));
keir@20482 1752 flexarray_set(back, boffset++, libxl_sprintf(ctx, PCI_BDF, pcidev->domain, pcidev->bus, pcidev->dev, pcidev->func));
keir@20482 1753 if (pcidev->vdevfn) {
keir@20482 1754 flexarray_set(back, boffset++, libxl_sprintf(ctx, "vdevfn-%d", num));
keir@20482 1755 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%x", pcidev->vdevfn));
keir@20482 1756 }
keir@20482 1757 flexarray_set(back, boffset++, libxl_sprintf(ctx, "opts-%d", num));
keir@20482 1758 flexarray_set(back, boffset++, libxl_sprintf(ctx, "msitranslate=%d,power_mgmt=%d", pcidev->msitranslate, pcidev->power_mgmt));
keir@20482 1759 flexarray_set(back, boffset++, libxl_sprintf(ctx, "state-%d", num));
keir@20482 1760 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", 1));
keir@20516 1761 flexarray_set(back, boffset++, "num_devs");
keir@20482 1762 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", num + 1));
keir@20516 1763 flexarray_set(back, boffset++, "state");
keir@20482 1764 flexarray_set(back, boffset++, libxl_sprintf(ctx, "%d", 7));
keir@20482 1765
keir@20482 1766 retry_transaction:
keir@20482 1767 t = xs_transaction_start(ctx->xsh);
keir@20482 1768 libxl_xs_writev(ctx, t, be_path,
keir@20482 1769 libxl_xs_kvs_of_flexarray(ctx, back, boffset));
keir@20482 1770 if (!xs_transaction_end(ctx->xsh, t, 0))
keir@20482 1771 if (errno == EAGAIN)
keir@20482 1772 goto retry_transaction;
keir@20482 1773
keir@20482 1774 flexarray_free(back);
keir@20482 1775 return 0;
keir@20482 1776 }
keir@20482 1777
keir@20482 1778 static int libxl_device_pci_remove_xenstore(struct libxl_ctx *ctx, uint32_t domid, libxl_device_pci *pcidev)
keir@20482 1779 {
keir@20542 1780 char *be_path, *num_devs_path, *num_devs, *xsdev, *tmp, *tmppath;
keir@20542 1781 int num, i, j;
keir@20482 1782 xs_transaction_t t;
keir@20482 1783 unsigned int domain = 0, bus = 0, dev = 0, func = 0;
keir@20482 1784
keir@20516 1785 be_path = libxl_sprintf(ctx, "%s/backend/pci/%d/0", libxl_xs_get_dompath(ctx, 0), domid);
keir@20482 1786 num_devs_path = libxl_sprintf(ctx, "%s/num_devs", be_path);
keir@20482 1787 num_devs = libxl_xs_read(ctx, XBT_NULL, num_devs_path);
keir@20482 1788 if (!num_devs)
keir@20482 1789 return -1;
keir@20482 1790 num = atoi(num_devs);
keir@20482 1791
keir@20482 1792 if (!is_hvm(ctx, domid)) {
keir@20482 1793 if (libxl_wait_for_backend(ctx, be_path, "4") < 0) {
keir@20542 1794 XL_LOG(ctx, XL_LOG_DEBUG, "pci backend at %s is not ready", be_path);
keir@20482 1795 return -1;
keir@20482 1796 }
keir@20482 1797 }
keir@20482 1798
keir@20482 1799 for (i = 0; i < num; i++) {
keir@20482 1800 xsdev = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/dev-%d", be_path, i));
keir@20482 1801 sscanf(xsdev, PCI_BDF, &domain, &bus, &dev, &func);
keir@20482 1802 if (domain == pcidev->domain && bus == pcidev->bus &&
keir@20482 1803 pcidev->dev == dev && pcidev->func == func) {
keir@20482 1804 break;
keir@20482 1805 }
keir@20482 1806 }
keir@20482 1807 if (i == num) {
keir@20512 1808 XL_LOG(ctx, XL_LOG_ERROR, "Couldn't find the device on xenstore");
keir@20482 1809 return -1;
keir@20482 1810 }
keir@20482 1811
keir@20482 1812 retry_transaction:
keir@20482 1813 t = xs_transaction_start(ctx->xsh);
keir@20542 1814 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/state-%d", be_path, i), "5", strlen("5"));
keir@20482 1815 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/state", be_path), "7", strlen("7"));
keir@20482 1816 if (!xs_transaction_end(ctx->xsh, t, 0))
keir@20482 1817 if (errno == EAGAIN)
keir@20482 1818 goto retry_transaction;
keir@20542 1819
keir@20542 1820 if (!is_hvm(ctx, domid)) {
keir@20542 1821 if (libxl_wait_for_backend(ctx, be_path, "4") < 0) {
keir@20542 1822 XL_LOG(ctx, XL_LOG_DEBUG, "pci backend at %s is not ready", be_path);
keir@20542 1823 return -1;
keir@20542 1824 }
keir@20542 1825 }
keir@20542 1826
keir@20542 1827 retry_transaction2:
keir@20542 1828 t = xs_transaction_start(ctx->xsh);
keir@20542 1829 xs_rm(ctx->xsh, t, libxl_sprintf(ctx, "%s/state-%d", be_path, i));
keir@20542 1830 xs_rm(ctx->xsh, t, libxl_sprintf(ctx, "%s/key-%d", be_path, i));
keir@20542 1831 xs_rm(ctx->xsh, t, libxl_sprintf(ctx, "%s/dev-%d", be_path, i));
keir@20542 1832 xs_rm(ctx->xsh, t, libxl_sprintf(ctx, "%s/vdev-%d", be_path, i));
keir@20542 1833 xs_rm(ctx->xsh, t, libxl_sprintf(ctx, "%s/opts-%d", be_path, i));
keir@20542 1834 xs_rm(ctx->xsh, t, libxl_sprintf(ctx, "%s/vdevfn-%d", be_path, i));
keir@20542 1835 libxl_xs_write(ctx, t, num_devs_path, "%d", num - 1);
keir@20542 1836 for (j = i + 1; j < num; j++) {
keir@20542 1837 tmppath = libxl_sprintf(ctx, "%s/state-%d", be_path, j);
keir@20542 1838 tmp = libxl_xs_read(ctx, t, tmppath);
keir@20542 1839 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/state-%d", be_path, j - 1), tmp, strlen(tmp));
keir@20542 1840 xs_rm(ctx->xsh, t, tmppath);
keir@20542 1841 tmppath = libxl_sprintf(ctx, "%s/dev-%d", be_path, j);
keir@20542 1842 tmp = libxl_xs_read(ctx, t, tmppath);
keir@20542 1843 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/dev-%d", be_path, j - 1), tmp, strlen(tmp));
keir@20542 1844 xs_rm(ctx->xsh, t, tmppath);
keir@20542 1845 tmppath = libxl_sprintf(ctx, "%s/key-%d", be_path, j);
keir@20542 1846 tmp = libxl_xs_read(ctx, t, tmppath);
keir@20542 1847 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/key-%d", be_path, j - 1), tmp, strlen(tmp));
keir@20542 1848 xs_rm(ctx->xsh, t, tmppath);
keir@20542 1849 tmppath = libxl_sprintf(ctx, "%s/vdev-%d", be_path, j);
keir@20542 1850 tmp = libxl_xs_read(ctx, t, tmppath);
keir@20542 1851 if (tmp) {
keir@20542 1852 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/vdev-%d", be_path, j - 1), tmp, strlen(tmp));
keir@20542 1853 xs_rm(ctx->xsh, t, tmppath);
keir@20542 1854 }
keir@20542 1855 tmppath = libxl_sprintf(ctx, "%s/opts-%d", be_path, j);
keir@20542 1856 tmp = libxl_xs_read(ctx, t, tmppath);
keir@20542 1857 if (tmp) {
keir@20542 1858 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/opts-%d", be_path, j - 1), tmp, strlen(tmp));
keir@20542 1859 xs_rm(ctx->xsh, t, tmppath);
keir@20542 1860 }
keir@20542 1861 tmppath = libxl_sprintf(ctx, "%s/vdevfn-%d", be_path, j);
keir@20542 1862 tmp = libxl_xs_read(ctx, t, tmppath);
keir@20542 1863 if (tmp) {
keir@20542 1864 xs_write(ctx->xsh, t, libxl_sprintf(ctx, "%s/vdevfn-%d", be_path, j - 1), tmp, strlen(tmp));
keir@20542 1865 xs_rm(ctx->xsh, t, tmppath);
keir@20542 1866 }
keir@20542 1867 }
keir@20542 1868 if (!xs_transaction_end(ctx->xsh, t, 0))
keir@20542 1869 if (errno == EAGAIN)
keir@20542 1870 goto retry_transaction2;
keir@20542 1871
keir@20542 1872 if (num == 1) {
keir@20542 1873 char *fe_path = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/frontend", be_path));
keir@20542 1874 libxl_device_destroy(ctx, be_path, 1);
keir@20542 1875 xs_rm(ctx->xsh, XBT_NULL, be_path);
keir@20542 1876 xs_rm(ctx->xsh, XBT_NULL, fe_path);
keir@20542 1877 return 0;
keir@20542 1878 }
keir@20542 1879
keir@20482 1880 return 0;
keir@20462 1881 }
keir@20462 1882
keir@20482 1883 int libxl_device_pci_add(struct libxl_ctx *ctx, uint32_t domid, libxl_device_pci *pcidev)
keir@20462 1884 {
keir@20779 1885 char *path;
keir@20482 1886 char *state, *vdevfn;
keir@20482 1887 int rc, hvm;
keir@20542 1888 int stubdomid = 0;
keir@20482 1889
keir@20482 1890 /* TODO: check if the device can be assigned */
keir@20482 1891
keir@20482 1892 libxl_device_pci_flr(ctx, pcidev->domain, pcidev->bus, pcidev->dev, pcidev->func);
keir@20482 1893
keir@20779 1894 stubdomid = libxl_get_stubdom_id(ctx, domid);
keir@20779 1895 if (stubdomid != 0) {
keir@20542 1896 libxl_device_pci pcidev_s = *pcidev;
keir@20542 1897 libxl_device_pci_add(ctx, stubdomid, &pcidev_s);
keir@20542 1898 }
keir@20542 1899
keir@20482 1900 hvm = is_hvm(ctx, domid);
keir@20482 1901 if (hvm) {
keir@20831 1902 if (libxl_wait_for_device_model(ctx, domid, "running", NULL, NULL) < 0) {
keir@20482 1903 return -1;
keir@20482 1904 }
keir@20779 1905 path = libxl_sprintf(ctx, "/local/domain/0/device-model/%d/state", domid);
keir@20482 1906 state = libxl_xs_read(ctx, XBT_NULL, path);
keir@20779 1907 path = libxl_sprintf(ctx, "/local/domain/0/device-model/%d/parameter", domid);
keir@20482 1908 if (pcidev->vdevfn)
keir@20482 1909 libxl_xs_write(ctx, XBT_NULL, path, PCI_BDF_VDEVFN, pcidev->domain,
keir@20482 1910 pcidev->bus, pcidev->dev, pcidev->func, pcidev->vdevfn);
keir@20482 1911 else
keir@20482 1912 libxl_xs_write(ctx, XBT_NULL, path, PCI_BDF, pcidev->domain,
keir@20482 1913 pcidev->bus, pcidev->dev, pcidev->func);
keir@20779 1914 path = libxl_sprintf(ctx, "/local/domain/0/device-model/%d/command", domid);
keir@20482 1915 xs_write(ctx->xsh, XBT_NULL, path, "pci-ins", strlen("pci-ins"));
keir@20831 1916 if (libxl_wait_for_device_model(ctx, domid, "pci-inserted", NULL, NULL) < 0)
keir@20512 1917 XL_LOG(ctx, XL_LOG_ERROR, "Device Model didn't respond in time");
keir@20779 1918 path = libxl_sprintf(ctx, "/local/domain/0/device-model/%d/parameter", domid);
keir@20482 1919 vdevfn = libxl_xs_read(ctx, XBT_NULL, path);
keir@20482 1920 sscanf(vdevfn + 2, "%x", &pcidev->vdevfn);
keir@20779 1921 path = libxl_sprintf(ctx, "/local/domain/0/device-model/%d/state", domid);
keir@20482 1922 xs_write(ctx->xsh, XBT_NULL, path, state, strlen(state));
keir@20482 1923 } else {
keir@20542 1924 char *sysfs_path = libxl_sprintf(ctx, SYSFS_PCI_DEV"/"PCI_BDF"/resource", pcidev->domain,
keir@20482 1925 pcidev->bus, pcidev->dev, pcidev->func);
keir@20482 1926 FILE *f = fopen(sysfs_path, "r");
keir@20482 1927 unsigned int start = 0, end = 0, flags = 0, size = 0;
keir@20482 1928 int irq = 0;
keir@20482 1929 int i;
keir@20482 1930
keir@20482 1931 if (f == NULL) {
keir@20512 1932 XL_LOG_ERRNO(ctx, XL_LOG_ERROR, "Couldn't open %s", sysfs_path);
keir@20482 1933 return -1;
keir@20482 1934 }
keir@20482 1935 for (i = 0; i < PROC_PCI_NUM_RESOURCES; i++) {
keir@20512 1936 fscanf(f, "0x%x 0x%x 0x%x", &start, &end, &flags);
keir@20482 1937 size = end - start + 1;
keir@20482 1938 if (start) {
keir@20482 1939 if (flags & PCI_BAR_IO) {
keir@20482 1940 rc = xc_domain_ioport_permission(ctx->xch, domid, start, size, 1);
keir@20482 1941 if (rc < 0)
keir@20512 1942 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "Error: xc_domain_ioport_permission error 0x%x/0x%x", start, size);
keir@20482 1943 } else {
keir@20482 1944 rc = xc_domain_iomem_permission(ctx->xch, domid, start>>XC_PAGE_SHIFT,
keir@20482 1945 (size+(XC_PAGE_SIZE-1))>>XC_PAGE_SHIFT, 1);
keir@20482 1946 if (rc < 0)
keir@20512 1947 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "Error: xc_domain_iomem_permission error 0x%x/0x%x", start, size);
keir@20482 1948 }
keir@20482 1949 }
keir@20482 1950 }
keir@20482 1951 fclose(f);
keir@20542 1952 sysfs_path = libxl_sprintf(ctx, SYSFS_PCI_DEV"/"PCI_BDF"/irq", pcidev->domain,
keir@20482 1953 pcidev->bus, pcidev->dev, pcidev->func);
keir@20482 1954 f = fopen(sysfs_path, "r");
keir@20482 1955 if (f == NULL) {
keir@20512 1956 XL_LOG_ERRNO(ctx, XL_LOG_ERROR, "Couldn't open %s", sysfs_path);
keir@20482 1957 goto out;
keir@20482 1958 }
keir@20482 1959 fscanf(f, "%u", &irq);
keir@20482 1960 if (irq) {
keir@20482 1961 rc = xc_physdev_map_pirq(ctx->xch, domid, irq, &irq);
keir@20482 1962 if (rc < 0) {
keir@20512 1963 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "Error: xc_physdev_map_pirq irq=%d", irq);
keir@20482 1964 }
keir@20482 1965 rc = xc_domain_irq_permission(ctx->xch, domid, irq, 1);
keir@20482 1966 if (rc < 0) {
keir@20512 1967 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "Error: xc_domain_irq_permission irq=%d", irq);
keir@20482 1968 }
keir@20482 1969 }
keir@20482 1970 fclose(f);
keir@20482 1971 }
keir@20482 1972 out:
keir@20542 1973 if (!libxl_is_stubdom(ctx, domid)) {
keir@20779 1974 rc = xc_assign_device(ctx->xch, domid, pcidev->value);
keir@20779 1975 if (rc < 0)
keir@20542 1976 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "xc_assign_device failed");
keir@20542 1977 }
keir@20482 1978
keir@20482 1979 libxl_device_pci_add_xenstore(ctx, domid, pcidev);
keir@20482 1980 return 0;
keir@20462 1981 }
keir@20462 1982
keir@20482 1983 int libxl_device_pci_remove(struct libxl_ctx *ctx, uint32_t domid, libxl_device_pci *pcidev)
keir@20462 1984 {
keir@20779 1985 char *path;
keir@20482 1986 char *state;
keir@20482 1987 int hvm, rc;
keir@20542 1988 int stubdomid = 0;
keir@20482 1989
keir@20482 1990 /* TODO: check if the device can be detached */
keir@20542 1991 libxl_device_pci_remove_xenstore(ctx, domid, pcidev);
keir@20482 1992
keir@20482 1993 hvm = is_hvm(ctx, domid);
keir@20482 1994 if (hvm) {
keir@20831 1995 if (libxl_wait_for_device_model(ctx, domid, "running", NULL, NULL) < 0) {
keir@20482 1996 return -1;
keir@20482 1997 }
keir@20779 1998 path = libxl_sprintf(ctx, "/local/domain/0/device-model/%d/state", domid);
keir@20482 1999 state = libxl_xs_read(ctx, XBT_NULL, path);
keir@20779 2000 path = libxl_sprintf(ctx, "/local/domain/0/device-model/%d/parameter", domid);
keir@20482 2001 libxl_xs_write(ctx, XBT_NULL, path, PCI_BDF, pcidev->domain,
keir@20482 2002 pcidev->bus, pcidev->dev, pcidev->func);
keir@20779 2003 path = libxl_sprintf(ctx, "/local/domain/0/device-model/%d/command", domid);
keir@20482 2004 xs_write(ctx->xsh, XBT_NULL, path, "pci-rem", strlen("pci-rem"));
keir@20831 2005 if (libxl_wait_for_device_model(ctx, domid, "pci-removed", NULL, NULL) < 0) {
keir@20512 2006 XL_LOG(ctx, XL_LOG_ERROR, "Device Model didn't respond in time");
keir@20482 2007 return -1;
keir@20482 2008 }
keir@20779 2009 path = libxl_sprintf(ctx, "/local/domain/0/device-model/%d/state", domid);
keir@20482 2010 xs_write(ctx->xsh, XBT_NULL, path, state, strlen(state));
keir@20482 2011 } else {
keir@20542 2012 char *sysfs_path = libxl_sprintf(ctx, SYSFS_PCI_DEV"/"PCI_BDF"/resource", pcidev->domain,
keir@20482 2013 pcidev->bus, pcidev->dev, pcidev->func);
keir@20482 2014 FILE *f = fopen(sysfs_path, "r");
keir@20482 2015 unsigned int start = 0, end = 0, flags = 0, size = 0;
keir@20482 2016 int irq = 0;
keir@20482 2017 int i;
keir@20482 2018
keir@20482 2019 if (f == NULL) {
keir@20512 2020 XL_LOG_ERRNO(ctx, XL_LOG_ERROR, "Couldn't open %s", sysfs_path);
keir@20482 2021 goto skip1;
keir@20482 2022 }
keir@20482 2023 for (i = 0; i < PROC_PCI_NUM_RESOURCES; i++) {
keir@20482 2024 fscanf(f, "0x%x 0x%x 0x%x\n", &start, &end, &flags);
keir@20482 2025 size = end - start + 1;
keir@20482 2026 if (start) {
keir@20482 2027 if (flags & PCI_BAR_IO) {
keir@20482 2028 rc = xc_domain_ioport_permission(ctx->xch, domid, start, size, 0);
keir@20482 2029 if (rc < 0)
keir@20512 2030 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "xc_domain_ioport_permission error 0x%x/0x%x", start, size);
keir@20482 2031 } else {
keir@20482 2032 rc = xc_domain_iomem_permission(ctx->xch, domid, start>>XC_PAGE_SHIFT,
keir@20482 2033 (size+(XC_PAGE_SIZE-1))>>XC_PAGE_SHIFT, 0);
keir@20482 2034 if (rc < 0)
keir@20512 2035 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "xc_domain_iomem_permission error 0x%x/0x%x", start, size);
keir@20482 2036 }
keir@20482 2037 }
keir@20482 2038 }
keir@20482 2039 fclose(f);
keir@20482 2040 skip1:
keir@20542 2041 sysfs_path = libxl_sprintf(ctx, SYSFS_PCI_DEV"/"PCI_BDF"/irq", pcidev->domain,
keir@20482 2042 pcidev->bus, pcidev->dev, pcidev->func);
keir@20482 2043 f = fopen(sysfs_path, "r");
keir@20482 2044 if (f == NULL) {
keir@20512 2045 XL_LOG_ERRNO(ctx, XL_LOG_ERROR, "Couldn't open %s", sysfs_path);
keir@20482 2046 goto out;
keir@20482 2047 }
keir@20482 2048 fscanf(f, "%u", &irq);
keir@20482 2049 if (irq) {
keir@20482 2050 rc = xc_physdev_unmap_pirq(ctx->xch, domid, irq);
keir@20482 2051 if (rc < 0) {
keir@20512 2052 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "xc_physdev_map_pirq irq=%d", irq);
keir@20482 2053 }
keir@20482 2054 rc = xc_domain_irq_permission(ctx->xch, domid, irq, 0);
keir@20482 2055 if (rc < 0) {
keir@20512 2056 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "xc_domain_irq_permission irq=%d", irq);
keir@20482 2057 }
keir@20482 2058 }
keir@20482 2059 fclose(f);
keir@20482 2060 }
keir@20482 2061 out:
keir@20482 2062 libxl_device_pci_flr(ctx, pcidev->domain, pcidev->bus, pcidev->dev, pcidev->func);
keir@20482 2063
keir@20542 2064 if (!libxl_is_stubdom(ctx, domid)) {
keir@20779 2065 rc = xc_deassign_device(ctx->xch, domid, pcidev->value);
keir@20779 2066 if (rc < 0)
keir@20542 2067 XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "xc_deassign_device failed");
keir@20542 2068 }
keir@20542 2069
keir@20779 2070 stubdomid = libxl_get_stubdom_id(ctx, domid);
keir@20779 2071 if (stubdomid != 0) {
keir@20542 2072 libxl_device_pci pcidev_s = *pcidev;
keir@20542 2073 libxl_device_pci_remove(ctx, stubdomid, &pcidev_s);
keir@20542 2074 }
keir@20542 2075
keir@20482 2076 return 0;
keir@20462 2077 }
keir@20482 2078
keir@20482 2079 libxl_device_pci *libxl_device_pci_list(struct libxl_ctx *ctx, uint32_t domid, int *num)
keir@20482 2080 {
keir@20482 2081 char *be_path, *num_devs, *xsdev, *xsvdevfn, *xsopts;
keir@20482 2082 int n, i;
keir@20482 2083 unsigned int domain = 0, bus = 0, dev = 0, func = 0, vdevfn = 0;
keir@20482 2084 libxl_device_pci *pcidevs;
keir@20482 2085
keir@20516 2086 be_path = libxl_sprintf(ctx, "%s/backend/pci/%d/0", libxl_xs_get_dompath(ctx, 0), domid);
keir@20482 2087 num_devs = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/num_devs", be_path));
keir@20482 2088 if (!num_devs) {
keir@20482 2089 *num = 0;
keir@20482 2090 return NULL;
keir@20482 2091 }
keir@20482 2092 n = atoi(num_devs);
keir@20779 2093 pcidevs = calloc(n, sizeof(libxl_device_pci));
keir@20482 2094 *num = n;
keir@20482 2095
keir@20482 2096 for (i = 0; i < n; i++) {
keir@20482 2097 xsdev = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/dev-%d", be_path, i));
keir@20482 2098 sscanf(xsdev, PCI_BDF, &domain, &bus, &dev, &func);
keir@20482 2099 xsvdevfn = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/vdevfn-%d", be_path, i));
keir@20482 2100 if (xsvdevfn)
keir@20482 2101 vdevfn = strtol(xsvdevfn, (char **) NULL, 16);
keir@20482 2102 libxl_device_pci_init(pcidevs + i, domain, bus, dev, func, vdevfn);
keir@20482 2103 xsopts = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/opts-%d", be_path, i));
keir@20482 2104 if (xsopts) {
keir@20482 2105 char *saveptr;
keir@20482 2106 char *p = strtok_r(xsopts, ",=", &saveptr);
keir@20482 2107 do {
keir@20482 2108 while (*p == ' ')
keir@20482 2109 p++;
keir@20482 2110 if (!strcmp(p, "msitranslate")) {
keir@20482 2111 p = strtok_r(NULL, ",=", &saveptr);
keir@20482 2112 pcidevs[i].msitranslate = atoi(p);
keir@20482 2113 } else if (!strcmp(p, "power_mgmt")) {
keir@20482 2114 p = strtok_r(NULL, ",=", &saveptr);
keir@20482 2115 pcidevs[i].power_mgmt = atoi(p);
keir@20482 2116 }
keir@20482 2117 } while ((p = strtok_r(NULL, ",=", &saveptr)) != NULL);
keir@20482 2118 }
keir@20482 2119 }
keir@20482 2120 return pcidevs;
keir@20482 2121 }
keir@20482 2122
keir@20482 2123 int libxl_device_pci_shutdown(struct libxl_ctx *ctx, uint32_t domid)
keir@20482 2124 {
keir@20482 2125 libxl_device_pci *pcidevs;
keir@20482 2126 int num, i;
keir@20482 2127
keir@20482 2128 pcidevs = libxl_device_pci_list(ctx, domid, &num);
keir@20482 2129 for (i = 0; i < num; i++) {
keir@20482 2130 if (libxl_device_pci_remove(ctx, domid, pcidevs + i) < 0)
keir@20482 2131 return -1;
keir@20482 2132 }
keir@20516 2133 free(pcidevs);
keir@20482 2134 return 0;
keir@20482 2135 }
keir@20482 2136
keir@20647 2137 int libxl_set_memory_target(struct libxl_ctx *ctx, uint32_t domid, uint32_t target_memkb)
keir@20647 2138 {
keir@20647 2139 int rc = 0;
keir@20647 2140 uint32_t videoram;
keir@20647 2141 char *videoram_s = NULL;
keir@20647 2142 char *dompath = libxl_xs_get_dompath(ctx, domid);
keir@20542 2143
keir@20647 2144 videoram_s = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/memory/videoram", dompath));
keir@20647 2145 if (!videoram_s)
keir@20647 2146 return -1;
keir@20647 2147 videoram = atoi(videoram_s);
keir@20647 2148
keir@20647 2149 libxl_xs_write(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/memory/target", dompath), "%lu", target_memkb);
keir@20779 2150 rc = xc_domain_setmaxmem(ctx->xch, domid, target_memkb + LIBXL_MAXMEM_CONSTANT);
keir@20779 2151 if (rc != 0)
keir@20779 2152 return rc;
keir@20647 2153 rc = xc_domain_memory_set_pod_target(ctx->xch, domid, (target_memkb - videoram) / 4, NULL, NULL, NULL);
keir@20647 2154 return rc;
keir@20647 2155 }