1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2016 iXsystems Inc. 5 * All rights reserved. 6 * 7 * This software was developed by Jakub Klama <jceel@FreeBSD.org> 8 * under sponsorship from iXsystems Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer 15 * in this position and unchanged. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #include <sys/param.h> 37 #ifndef WITHOUT_CAPSICUM 38 #include <sys/capsicum.h> 39 #endif 40 #include <sys/linker_set.h> 41 #include <sys/uio.h> 42 #include <sys/types.h> 43 #include <sys/socket.h> 44 #include <sys/un.h> 45 46 #ifndef WITHOUT_CAPSICUM 47 #include <capsicum_helpers.h> 48 #endif 49 #include <err.h> 50 #include <errno.h> 51 #include <fcntl.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <stdbool.h> 55 #include <string.h> 56 #include <unistd.h> 57 #include <assert.h> 58 #include <pthread.h> 59 #include <libgen.h> 60 #include <sysexits.h> 61 62 #include "bhyverun.h" 63 #include "config.h" 64 #include "debug.h" 65 #include "pci_emul.h" 66 #include "virtio.h" 67 #include "mevent.h" 68 #include "sockstream.h" 69 70 #define VTCON_RINGSZ 64 71 #define VTCON_MAXPORTS 16 72 #define VTCON_MAXQ (VTCON_MAXPORTS * 2 + 2) 73 74 #define VTCON_DEVICE_READY 0 75 #define VTCON_DEVICE_ADD 1 76 #define VTCON_DEVICE_REMOVE 2 77 #define VTCON_PORT_READY 3 78 #define VTCON_CONSOLE_PORT 4 79 #define VTCON_CONSOLE_RESIZE 5 80 #define VTCON_PORT_OPEN 6 81 #define VTCON_PORT_NAME 7 82 83 #define VTCON_F_SIZE 0 84 #define VTCON_F_MULTIPORT 1 85 #define VTCON_F_EMERG_WRITE 2 86 #define VTCON_S_HOSTCAPS \ 87 (VTCON_F_SIZE | VTCON_F_MULTIPORT | VTCON_F_EMERG_WRITE) 88 89 static int pci_vtcon_debug; 90 #define DPRINTF(params) if (pci_vtcon_debug) PRINTLN params 91 #define WPRINTF(params) PRINTLN params 92 93 struct pci_vtcon_softc; 94 struct pci_vtcon_port; 95 struct pci_vtcon_config; 96 typedef void (pci_vtcon_cb_t)(struct pci_vtcon_port *, void *, struct iovec *, 97 int); 98 99 struct pci_vtcon_port { 100 struct pci_vtcon_softc * vsp_sc; 101 int vsp_id; 102 const char * vsp_name; 103 bool vsp_enabled; 104 bool vsp_console; 105 bool vsp_rx_ready; 106 bool vsp_open; 107 int vsp_rxq; 108 int vsp_txq; 109 void * vsp_arg; 110 pci_vtcon_cb_t * vsp_cb; 111 }; 112 113 struct pci_vtcon_sock 114 { 115 struct pci_vtcon_port * vss_port; 116 const char * vss_path; 117 struct mevent * vss_server_evp; 118 struct mevent * vss_conn_evp; 119 int vss_server_fd; 120 int vss_conn_fd; 121 bool vss_open; 122 }; 123 124 struct pci_vtcon_softc { 125 struct virtio_softc vsc_vs; 126 struct vqueue_info vsc_queues[VTCON_MAXQ]; 127 pthread_mutex_t vsc_mtx; 128 uint64_t vsc_cfg; 129 uint64_t vsc_features; 130 char * vsc_rootdir; 131 int vsc_kq; 132 bool vsc_ready; 133 struct pci_vtcon_port vsc_control_port; 134 struct pci_vtcon_port vsc_ports[VTCON_MAXPORTS]; 135 struct pci_vtcon_config *vsc_config; 136 }; 137 138 struct pci_vtcon_config { 139 uint16_t cols; 140 uint16_t rows; 141 uint32_t max_nr_ports; 142 uint32_t emerg_wr; 143 } __attribute__((packed)); 144 145 struct pci_vtcon_control { 146 uint32_t id; 147 uint16_t event; 148 uint16_t value; 149 } __attribute__((packed)); 150 151 struct pci_vtcon_console_resize { 152 uint16_t cols; 153 uint16_t rows; 154 } __attribute__((packed)); 155 156 static void pci_vtcon_reset(void *); 157 static void pci_vtcon_notify_rx(void *, struct vqueue_info *); 158 static void pci_vtcon_notify_tx(void *, struct vqueue_info *); 159 static int pci_vtcon_cfgread(void *, int, int, uint32_t *); 160 static int pci_vtcon_cfgwrite(void *, int, int, uint32_t); 161 static void pci_vtcon_neg_features(void *, uint64_t); 162 static void pci_vtcon_sock_accept(int, enum ev_type, void *); 163 static void pci_vtcon_sock_rx(int, enum ev_type, void *); 164 static void pci_vtcon_sock_tx(struct pci_vtcon_port *, void *, struct iovec *, 165 int); 166 static void pci_vtcon_control_send(struct pci_vtcon_softc *, 167 struct pci_vtcon_control *, const void *, size_t); 168 static void pci_vtcon_announce_port(struct pci_vtcon_port *); 169 static void pci_vtcon_open_port(struct pci_vtcon_port *, bool); 170 171 static struct virtio_consts vtcon_vi_consts = { 172 .vc_name = "vtcon", 173 .vc_nvq = VTCON_MAXQ, 174 .vc_cfgsize = sizeof(struct pci_vtcon_config), 175 .vc_reset = pci_vtcon_reset, 176 .vc_cfgread = pci_vtcon_cfgread, 177 .vc_cfgwrite = pci_vtcon_cfgwrite, 178 .vc_apply_features = pci_vtcon_neg_features, 179 .vc_hv_caps = VTCON_S_HOSTCAPS, 180 }; 181 182 static void 183 pci_vtcon_reset(void *vsc) 184 { 185 struct pci_vtcon_softc *sc; 186 187 sc = vsc; 188 189 DPRINTF(("vtcon: device reset requested!")); 190 vi_reset_dev(&sc->vsc_vs); 191 } 192 193 static void 194 pci_vtcon_neg_features(void *vsc, uint64_t negotiated_features) 195 { 196 struct pci_vtcon_softc *sc = vsc; 197 198 sc->vsc_features = negotiated_features; 199 } 200 201 static int 202 pci_vtcon_cfgread(void *vsc, int offset, int size, uint32_t *retval) 203 { 204 struct pci_vtcon_softc *sc = vsc; 205 void *ptr; 206 207 ptr = (uint8_t *)sc->vsc_config + offset; 208 memcpy(retval, ptr, size); 209 return (0); 210 } 211 212 static int 213 pci_vtcon_cfgwrite(void *vsc __unused, int offset __unused, int size __unused, 214 uint32_t val __unused) 215 { 216 return (0); 217 } 218 219 static inline struct pci_vtcon_port * 220 pci_vtcon_vq_to_port(struct pci_vtcon_softc *sc, struct vqueue_info *vq) 221 { 222 uint16_t num = vq->vq_num; 223 224 if (num == 0 || num == 1) 225 return (&sc->vsc_ports[0]); 226 227 if (num == 2 || num == 3) 228 return (&sc->vsc_control_port); 229 230 return (&sc->vsc_ports[(num / 2) - 1]); 231 } 232 233 static inline struct vqueue_info * 234 pci_vtcon_port_to_vq(struct pci_vtcon_port *port, bool tx_queue) 235 { 236 int qnum; 237 238 qnum = tx_queue ? port->vsp_txq : port->vsp_rxq; 239 return (&port->vsp_sc->vsc_queues[qnum]); 240 } 241 242 static struct pci_vtcon_port * 243 pci_vtcon_port_add(struct pci_vtcon_softc *sc, int port_id, const char *name, 244 pci_vtcon_cb_t *cb, void *arg) 245 { 246 struct pci_vtcon_port *port; 247 248 port = &sc->vsc_ports[port_id]; 249 if (port->vsp_enabled) { 250 errno = EBUSY; 251 return (NULL); 252 } 253 port->vsp_id = port_id; 254 port->vsp_sc = sc; 255 port->vsp_name = name; 256 port->vsp_cb = cb; 257 port->vsp_arg = arg; 258 259 if (port->vsp_id == 0) { 260 /* port0 */ 261 port->vsp_txq = 0; 262 port->vsp_rxq = 1; 263 } else { 264 port->vsp_txq = (port_id + 1) * 2; 265 port->vsp_rxq = port->vsp_txq + 1; 266 } 267 268 port->vsp_enabled = true; 269 return (port); 270 } 271 272 static int 273 pci_vtcon_sock_add(struct pci_vtcon_softc *sc, const char *port_name, 274 const nvlist_t *nvl) 275 { 276 struct pci_vtcon_sock *sock = NULL; 277 struct sockaddr_un sun; 278 const char *name, *path; 279 char *cp, *pathcopy; 280 long port; 281 int s = -1, fd = -1, error = 0; 282 #ifndef WITHOUT_CAPSICUM 283 cap_rights_t rights; 284 #endif 285 286 port = strtol(port_name, &cp, 0); 287 if (*cp != '\0' || port < 0 || port >= VTCON_MAXPORTS) { 288 EPRINTLN("vtcon: Invalid port %s", port_name); 289 error = -1; 290 goto out; 291 } 292 293 path = get_config_value_node(nvl, "path"); 294 if (path == NULL) { 295 EPRINTLN("vtcon: required path missing for port %ld", port); 296 error = -1; 297 goto out; 298 } 299 300 sock = calloc(1, sizeof(struct pci_vtcon_sock)); 301 if (sock == NULL) { 302 error = -1; 303 goto out; 304 } 305 306 s = socket(AF_UNIX, SOCK_STREAM, 0); 307 if (s < 0) { 308 error = -1; 309 goto out; 310 } 311 312 pathcopy = strdup(path); 313 if (pathcopy == NULL) { 314 error = -1; 315 goto out; 316 } 317 318 fd = open(dirname(pathcopy), O_RDONLY | O_DIRECTORY); 319 if (fd < 0) { 320 free(pathcopy); 321 error = -1; 322 goto out; 323 } 324 325 sun.sun_family = AF_UNIX; 326 sun.sun_len = sizeof(struct sockaddr_un); 327 strcpy(pathcopy, path); 328 strlcpy(sun.sun_path, basename(pathcopy), sizeof(sun.sun_path)); 329 free(pathcopy); 330 331 if (bindat(fd, s, (struct sockaddr *)&sun, sun.sun_len) < 0) { 332 error = -1; 333 goto out; 334 } 335 336 if (fcntl(s, F_SETFL, O_NONBLOCK) < 0) { 337 error = -1; 338 goto out; 339 } 340 341 if (listen(s, 1) < 0) { 342 error = -1; 343 goto out; 344 } 345 346 #ifndef WITHOUT_CAPSICUM 347 cap_rights_init(&rights, CAP_ACCEPT, CAP_EVENT, CAP_READ, CAP_WRITE); 348 if (caph_rights_limit(s, &rights) == -1) 349 errx(EX_OSERR, "Unable to apply rights for sandbox"); 350 #endif 351 352 name = get_config_value_node(nvl, "name"); 353 if (name == NULL) { 354 EPRINTLN("vtcon: required name missing for port %ld", port); 355 error = -1; 356 goto out; 357 } 358 sock->vss_port = pci_vtcon_port_add(sc, port, name, pci_vtcon_sock_tx, sock); 359 if (sock->vss_port == NULL) { 360 error = -1; 361 goto out; 362 } 363 364 sock->vss_open = false; 365 sock->vss_conn_fd = -1; 366 sock->vss_server_fd = s; 367 sock->vss_server_evp = mevent_add(s, EVF_READ, pci_vtcon_sock_accept, 368 sock); 369 370 if (sock->vss_server_evp == NULL) { 371 error = -1; 372 goto out; 373 } 374 375 out: 376 if (fd != -1) 377 close(fd); 378 379 if (error != 0) { 380 if (s != -1) 381 close(s); 382 free(sock); 383 } 384 385 return (error); 386 } 387 388 static void 389 pci_vtcon_sock_accept(int fd __unused, enum ev_type t __unused, void *arg) 390 { 391 struct pci_vtcon_sock *sock = (struct pci_vtcon_sock *)arg; 392 int s; 393 394 s = accept(sock->vss_server_fd, NULL, NULL); 395 if (s < 0) 396 return; 397 398 if (sock->vss_open) { 399 close(s); 400 return; 401 } 402 403 sock->vss_open = true; 404 sock->vss_conn_fd = s; 405 sock->vss_conn_evp = mevent_add(s, EVF_READ, pci_vtcon_sock_rx, sock); 406 407 pci_vtcon_open_port(sock->vss_port, true); 408 } 409 410 static void 411 pci_vtcon_sock_rx(int fd __unused, enum ev_type t __unused, void *arg) 412 { 413 struct pci_vtcon_port *port; 414 struct pci_vtcon_sock *sock = (struct pci_vtcon_sock *)arg; 415 struct vqueue_info *vq; 416 struct vi_req req; 417 struct iovec iov; 418 static char dummybuf[2048]; 419 int len, n; 420 421 port = sock->vss_port; 422 vq = pci_vtcon_port_to_vq(port, true); 423 424 if (!sock->vss_open || !port->vsp_rx_ready) { 425 len = read(sock->vss_conn_fd, dummybuf, sizeof(dummybuf)); 426 if (len == 0) 427 goto close; 428 429 return; 430 } 431 432 if (!vq_has_descs(vq)) { 433 len = read(sock->vss_conn_fd, dummybuf, sizeof(dummybuf)); 434 vq_endchains(vq, 1); 435 if (len == 0) 436 goto close; 437 438 return; 439 } 440 441 do { 442 n = vq_getchain(vq, &iov, 1, &req); 443 assert(n == 1); 444 len = readv(sock->vss_conn_fd, &iov, n); 445 446 if (len == 0 || (len < 0 && errno == EWOULDBLOCK)) { 447 vq_retchains(vq, 1); 448 vq_endchains(vq, 0); 449 if (len == 0) 450 goto close; 451 452 return; 453 } 454 455 vq_relchain(vq, req.idx, len); 456 } while (vq_has_descs(vq)); 457 458 vq_endchains(vq, 1); 459 460 close: 461 mevent_delete_close(sock->vss_conn_evp); 462 sock->vss_conn_fd = -1; 463 sock->vss_open = false; 464 } 465 466 static void 467 pci_vtcon_sock_tx(struct pci_vtcon_port *port __unused, void *arg __unused, 468 struct iovec *iov, int niov) 469 { 470 struct pci_vtcon_sock *sock; 471 int i, ret; 472 473 sock = (struct pci_vtcon_sock *)arg; 474 475 if (sock->vss_conn_fd == -1) 476 return; 477 478 for (i = 0; i < niov; i++) { 479 ret = stream_write(sock->vss_conn_fd, iov[i].iov_base, 480 iov[i].iov_len); 481 if (ret <= 0) 482 break; 483 } 484 485 if (ret <= 0) { 486 mevent_delete_close(sock->vss_conn_evp); 487 sock->vss_conn_fd = -1; 488 sock->vss_open = false; 489 } 490 } 491 492 static void 493 pci_vtcon_control_tx(struct pci_vtcon_port *port, void *arg __unused, 494 struct iovec *iov, int niov) 495 { 496 struct pci_vtcon_softc *sc; 497 struct pci_vtcon_port *tmp; 498 struct pci_vtcon_control resp, *ctrl; 499 int i; 500 501 assert(niov == 1); 502 503 sc = port->vsp_sc; 504 ctrl = (struct pci_vtcon_control *)iov->iov_base; 505 506 switch (ctrl->event) { 507 case VTCON_DEVICE_READY: 508 sc->vsc_ready = true; 509 /* set port ready events for registered ports */ 510 for (i = 0; i < VTCON_MAXPORTS; i++) { 511 tmp = &sc->vsc_ports[i]; 512 if (tmp->vsp_enabled) 513 pci_vtcon_announce_port(tmp); 514 515 if (tmp->vsp_open) 516 pci_vtcon_open_port(tmp, true); 517 } 518 break; 519 520 case VTCON_PORT_READY: 521 tmp = &sc->vsc_ports[ctrl->id]; 522 if (ctrl->id >= VTCON_MAXPORTS || !tmp->vsp_enabled) { 523 WPRINTF(("VTCON_PORT_READY event for unknown port %d", 524 ctrl->id)); 525 return; 526 } 527 528 if (tmp->vsp_console) { 529 resp.event = VTCON_CONSOLE_PORT; 530 resp.id = ctrl->id; 531 resp.value = 1; 532 pci_vtcon_control_send(sc, &resp, NULL, 0); 533 } 534 break; 535 } 536 } 537 538 static void 539 pci_vtcon_announce_port(struct pci_vtcon_port *port) 540 { 541 struct pci_vtcon_control event; 542 543 event.id = port->vsp_id; 544 event.event = VTCON_DEVICE_ADD; 545 event.value = 1; 546 pci_vtcon_control_send(port->vsp_sc, &event, NULL, 0); 547 548 event.event = VTCON_PORT_NAME; 549 pci_vtcon_control_send(port->vsp_sc, &event, port->vsp_name, 550 strlen(port->vsp_name)); 551 } 552 553 static void 554 pci_vtcon_open_port(struct pci_vtcon_port *port, bool open) 555 { 556 struct pci_vtcon_control event; 557 558 if (!port->vsp_sc->vsc_ready) { 559 port->vsp_open = true; 560 return; 561 } 562 563 event.id = port->vsp_id; 564 event.event = VTCON_PORT_OPEN; 565 event.value = (int)open; 566 pci_vtcon_control_send(port->vsp_sc, &event, NULL, 0); 567 } 568 569 static void 570 pci_vtcon_control_send(struct pci_vtcon_softc *sc, 571 struct pci_vtcon_control *ctrl, const void *payload, size_t len) 572 { 573 struct vqueue_info *vq; 574 struct vi_req req; 575 struct iovec iov; 576 int n; 577 578 vq = pci_vtcon_port_to_vq(&sc->vsc_control_port, true); 579 580 if (!vq_has_descs(vq)) 581 return; 582 583 n = vq_getchain(vq, &iov, 1, &req); 584 assert(n == 1); 585 586 memcpy(iov.iov_base, ctrl, sizeof(struct pci_vtcon_control)); 587 if (payload != NULL && len > 0) 588 memcpy((uint8_t *)iov.iov_base + 589 sizeof(struct pci_vtcon_control), payload, len); 590 591 vq_relchain(vq, req.idx, sizeof(struct pci_vtcon_control) + len); 592 vq_endchains(vq, 1); 593 } 594 595 596 static void 597 pci_vtcon_notify_tx(void *vsc, struct vqueue_info *vq) 598 { 599 struct pci_vtcon_softc *sc; 600 struct pci_vtcon_port *port; 601 struct iovec iov[1]; 602 struct vi_req req; 603 int n; 604 605 sc = vsc; 606 port = pci_vtcon_vq_to_port(sc, vq); 607 608 while (vq_has_descs(vq)) { 609 n = vq_getchain(vq, iov, 1, &req); 610 assert(n == 1); 611 if (port != NULL) 612 port->vsp_cb(port, port->vsp_arg, iov, 1); 613 614 /* 615 * Release this chain and handle more 616 */ 617 vq_relchain(vq, req.idx, 0); 618 } 619 vq_endchains(vq, 1); /* Generate interrupt if appropriate. */ 620 } 621 622 static void 623 pci_vtcon_notify_rx(void *vsc, struct vqueue_info *vq) 624 { 625 struct pci_vtcon_softc *sc; 626 struct pci_vtcon_port *port; 627 628 sc = vsc; 629 port = pci_vtcon_vq_to_port(sc, vq); 630 631 if (!port->vsp_rx_ready) { 632 port->vsp_rx_ready = 1; 633 vq_kick_disable(vq); 634 } 635 } 636 637 /* 638 * Each console device has a "port" node which contains nodes for 639 * each port. Ports are numbered starting at 0. 640 */ 641 static int 642 pci_vtcon_legacy_config_port(nvlist_t *nvl, int port, char *opt) 643 { 644 char *name, *path; 645 char node_name[sizeof("XX")]; 646 nvlist_t *port_nvl; 647 648 name = strsep(&opt, "="); 649 path = opt; 650 if (path == NULL) { 651 EPRINTLN("vtcon: port %s requires a path", name); 652 return (-1); 653 } 654 if (port >= VTCON_MAXPORTS) { 655 EPRINTLN("vtcon: too many ports"); 656 return (-1); 657 } 658 snprintf(node_name, sizeof(node_name), "%d", port); 659 port_nvl = create_relative_config_node(nvl, node_name); 660 set_config_value_node(port_nvl, "name", name); 661 set_config_value_node(port_nvl, "path", path); 662 return (0); 663 } 664 665 static int 666 pci_vtcon_legacy_config(nvlist_t *nvl, const char *opts) 667 { 668 char *opt, *str, *tofree; 669 nvlist_t *ports_nvl; 670 int error, port; 671 672 ports_nvl = create_relative_config_node(nvl, "port"); 673 tofree = str = strdup(opts); 674 error = 0; 675 port = 0; 676 while ((opt = strsep(&str, ",")) != NULL) { 677 error = pci_vtcon_legacy_config_port(ports_nvl, port, opt); 678 if (error) 679 break; 680 port++; 681 } 682 free(tofree); 683 return (error); 684 } 685 686 static int 687 pci_vtcon_init(struct pci_devinst *pi, nvlist_t *nvl) 688 { 689 struct pci_vtcon_softc *sc; 690 nvlist_t *ports_nvl; 691 int i; 692 693 sc = calloc(1, sizeof(struct pci_vtcon_softc)); 694 sc->vsc_config = calloc(1, sizeof(struct pci_vtcon_config)); 695 sc->vsc_config->max_nr_ports = VTCON_MAXPORTS; 696 sc->vsc_config->cols = 80; 697 sc->vsc_config->rows = 25; 698 699 pthread_mutex_init(&sc->vsc_mtx, NULL); 700 701 vi_softc_linkup(&sc->vsc_vs, &vtcon_vi_consts, sc, pi, sc->vsc_queues); 702 sc->vsc_vs.vs_mtx = &sc->vsc_mtx; 703 704 for (i = 0; i < VTCON_MAXQ; i++) { 705 sc->vsc_queues[i].vq_qsize = VTCON_RINGSZ; 706 sc->vsc_queues[i].vq_notify = i % 2 == 0 707 ? pci_vtcon_notify_rx 708 : pci_vtcon_notify_tx; 709 } 710 711 /* initialize config space */ 712 pci_set_cfgdata16(pi, PCIR_DEVICE, VIRTIO_DEV_CONSOLE); 713 pci_set_cfgdata16(pi, PCIR_VENDOR, VIRTIO_VENDOR); 714 pci_set_cfgdata8(pi, PCIR_CLASS, PCIC_SIMPLECOMM); 715 pci_set_cfgdata16(pi, PCIR_SUBDEV_0, VIRTIO_ID_CONSOLE); 716 pci_set_cfgdata16(pi, PCIR_SUBVEND_0, VIRTIO_VENDOR); 717 718 if (vi_intr_init(&sc->vsc_vs, 1, fbsdrun_virtio_msix())) 719 return (1); 720 vi_set_io_bar(&sc->vsc_vs, 0); 721 722 /* create control port */ 723 sc->vsc_control_port.vsp_sc = sc; 724 sc->vsc_control_port.vsp_txq = 2; 725 sc->vsc_control_port.vsp_rxq = 3; 726 sc->vsc_control_port.vsp_cb = pci_vtcon_control_tx; 727 sc->vsc_control_port.vsp_enabled = true; 728 729 ports_nvl = find_relative_config_node(nvl, "port"); 730 if (ports_nvl != NULL) { 731 const char *name; 732 void *cookie; 733 int type; 734 735 cookie = NULL; 736 while ((name = nvlist_next(ports_nvl, &type, &cookie)) != 737 NULL) { 738 if (type != NV_TYPE_NVLIST) 739 continue; 740 741 if (pci_vtcon_sock_add(sc, name, 742 nvlist_get_nvlist(ports_nvl, name)) < 0) { 743 EPRINTLN("cannot create port %s: %s", 744 name, strerror(errno)); 745 return (1); 746 } 747 } 748 } 749 750 return (0); 751 } 752 753 static const struct pci_devemu pci_de_vcon = { 754 .pe_emu = "virtio-console", 755 .pe_init = pci_vtcon_init, 756 .pe_barwrite = vi_pci_write, 757 .pe_barread = vi_pci_read, 758 .pe_legacy_config = pci_vtcon_legacy_config, 759 }; 760 PCI_EMUL_SET(pci_de_vcon); 761