debuggers.hg: tools/libxl/libxl.c annotate

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 }