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 "vtcon", /* our name */ 173 VTCON_MAXQ, /* we support VTCON_MAXQ virtqueues */ 174 sizeof(struct pci_vtcon_config), /* config reg size */ 175 pci_vtcon_reset, /* reset */ 176 NULL, /* device-wide qnotify */ 177 pci_vtcon_cfgread, /* read virtio config */ 178 pci_vtcon_cfgwrite, /* write virtio config */ 179 pci_vtcon_neg_features, /* apply negotiated features */ 180 VTCON_S_HOSTCAPS, /* our capabilities */ 181 }; 182 183 184 static void 185 pci_vtcon_reset(void *vsc) 186 { 187 struct pci_vtcon_softc *sc; 188 189 sc = vsc; 190 191 DPRINTF(("vtcon: device reset requested!")); 192 vi_reset_dev(&sc->vsc_vs); 193 } 194 195 static void 196 pci_vtcon_neg_features(void *vsc, uint64_t negotiated_features) 197 { 198 struct pci_vtcon_softc *sc = vsc; 199 200 sc->vsc_features = negotiated_features; 201 } 202 203 static int 204 pci_vtcon_cfgread(void *vsc, int offset, int size, uint32_t *retval) 205 { 206 struct pci_vtcon_softc *sc = vsc; 207 void *ptr; 208 209 ptr = (uint8_t *)sc->vsc_config + offset; 210 memcpy(retval, ptr, size); 211 return (0); 212 } 213 214 static int 215 pci_vtcon_cfgwrite(void *vsc, int offset, int size, uint32_t val) 216 { 217 218 return (0); 219 } 220 221 static inline struct pci_vtcon_port * 222 pci_vtcon_vq_to_port(struct pci_vtcon_softc *sc, struct vqueue_info *vq) 223 { 224 uint16_t num = vq->vq_num; 225 226 if (num == 0 || num == 1) 227 return (&sc->vsc_ports[0]); 228 229 if (num == 2 || num == 3) 230 return (&sc->vsc_control_port); 231 232 return (&sc->vsc_ports[(num / 2) - 1]); 233 } 234 235 static inline struct vqueue_info * 236 pci_vtcon_port_to_vq(struct pci_vtcon_port *port, bool tx_queue) 237 { 238 int qnum; 239 240 qnum = tx_queue ? port->vsp_txq : port->vsp_rxq; 241 return (&port->vsp_sc->vsc_queues[qnum]); 242 } 243 244 static struct pci_vtcon_port * 245 pci_vtcon_port_add(struct pci_vtcon_softc *sc, int port_id, const char *name, 246 pci_vtcon_cb_t *cb, void *arg) 247 { 248 struct pci_vtcon_port *port; 249 250 port = &sc->vsc_ports[port_id]; 251 if (port->vsp_enabled) { 252 errno = EBUSY; 253 return (NULL); 254 } 255 port->vsp_id = port_id; 256 port->vsp_sc = sc; 257 port->vsp_name = name; 258 port->vsp_cb = cb; 259 port->vsp_arg = arg; 260 261 if (port->vsp_id == 0) { 262 /* port0 */ 263 port->vsp_txq = 0; 264 port->vsp_rxq = 1; 265 } else { 266 port->vsp_txq = (port_id + 1) * 2; 267 port->vsp_rxq = port->vsp_txq + 1; 268 } 269 270 port->vsp_enabled = true; 271 return (port); 272 } 273 274 static int 275 pci_vtcon_sock_add(struct pci_vtcon_softc *sc, const char *port_name, 276 const nvlist_t *nvl) 277 { 278 struct pci_vtcon_sock *sock; 279 struct sockaddr_un sun; 280 const char *name, *path; 281 char *cp, *pathcopy; 282 long port; 283 int s = -1, fd = -1, error = 0; 284 #ifndef WITHOUT_CAPSICUM 285 cap_rights_t rights; 286 #endif 287 288 port = strtol(port_name, &cp, 0); 289 if (*cp != '\0' || port < 0 || port >= VTCON_MAXPORTS) { 290 EPRINTLN("vtcon: Invalid port %s", port_name); 291 error = -1; 292 goto out; 293 } 294 295 path = get_config_value_node(nvl, "path"); 296 if (path == NULL) { 297 EPRINTLN("vtcon: required path missing for port %ld", port); 298 error = -1; 299 goto out; 300 } 301 302 sock = calloc(1, sizeof(struct pci_vtcon_sock)); 303 if (sock == NULL) { 304 error = -1; 305 goto out; 306 } 307 308 s = socket(AF_UNIX, SOCK_STREAM, 0); 309 if (s < 0) { 310 error = -1; 311 goto out; 312 } 313 314 pathcopy = strdup(path); 315 if (pathcopy == NULL) { 316 error = -1; 317 goto out; 318 } 319 320 fd = open(dirname(pathcopy), O_RDONLY | O_DIRECTORY); 321 if (fd < 0) { 322 free(pathcopy); 323 error = -1; 324 goto out; 325 } 326 327 sun.sun_family = AF_UNIX; 328 sun.sun_len = sizeof(struct sockaddr_un); 329 strcpy(pathcopy, path); 330 strlcpy(sun.sun_path, basename(pathcopy), sizeof(sun.sun_path)); 331 free(pathcopy); 332 333 if (bindat(fd, s, (struct sockaddr *)&sun, sun.sun_len) < 0) { 334 error = -1; 335 goto out; 336 } 337 338 if (fcntl(s, F_SETFL, O_NONBLOCK) < 0) { 339 error = -1; 340 goto out; 341 } 342 343 if (listen(s, 1) < 0) { 344 error = -1; 345 goto out; 346 } 347 348 #ifndef WITHOUT_CAPSICUM 349 cap_rights_init(&rights, CAP_ACCEPT, CAP_EVENT, CAP_READ, CAP_WRITE); 350 if (caph_rights_limit(s, &rights) == -1) 351 errx(EX_OSERR, "Unable to apply rights for sandbox"); 352 #endif 353 354 name = get_config_value_node(nvl, "name"); 355 if (name == NULL) { 356 EPRINTLN("vtcon: required name missing for port %ld", port); 357 error = -1; 358 goto out; 359 } 360 sock->vss_port = pci_vtcon_port_add(sc, port, name, pci_vtcon_sock_tx, sock); 361 if (sock->vss_port == NULL) { 362 error = -1; 363 goto out; 364 } 365 366 sock->vss_open = false; 367 sock->vss_conn_fd = -1; 368 sock->vss_server_fd = s; 369 sock->vss_server_evp = mevent_add(s, EVF_READ, pci_vtcon_sock_accept, 370 sock); 371 372 if (sock->vss_server_evp == NULL) { 373 error = -1; 374 goto out; 375 } 376 377 out: 378 if (fd != -1) 379 close(fd); 380 381 if (error != 0) { 382 if (s != -1) 383 close(s); 384 free(sock); 385 } 386 387 return (error); 388 } 389 390 static void 391 pci_vtcon_sock_accept(int fd __unused, enum ev_type t __unused, void *arg) 392 { 393 struct pci_vtcon_sock *sock = (struct pci_vtcon_sock *)arg; 394 int s; 395 396 s = accept(sock->vss_server_fd, NULL, NULL); 397 if (s < 0) 398 return; 399 400 if (sock->vss_open) { 401 close(s); 402 return; 403 } 404 405 sock->vss_open = true; 406 sock->vss_conn_fd = s; 407 sock->vss_conn_evp = mevent_add(s, EVF_READ, pci_vtcon_sock_rx, sock); 408 409 pci_vtcon_open_port(sock->vss_port, true); 410 } 411 412 static void 413 pci_vtcon_sock_rx(int fd __unused, enum ev_type t __unused, void *arg) 414 { 415 struct pci_vtcon_port *port; 416 struct pci_vtcon_sock *sock = (struct pci_vtcon_sock *)arg; 417 struct vqueue_info *vq; 418 struct vi_req req; 419 struct iovec iov; 420 static char dummybuf[2048]; 421 int len, n; 422 423 port = sock->vss_port; 424 vq = pci_vtcon_port_to_vq(port, true); 425 426 if (!sock->vss_open || !port->vsp_rx_ready) { 427 len = read(sock->vss_conn_fd, dummybuf, sizeof(dummybuf)); 428 if (len == 0) 429 goto close; 430 431 return; 432 } 433 434 if (!vq_has_descs(vq)) { 435 len = read(sock->vss_conn_fd, dummybuf, sizeof(dummybuf)); 436 vq_endchains(vq, 1); 437 if (len == 0) 438 goto close; 439 440 return; 441 } 442 443 do { 444 n = vq_getchain(vq, &iov, 1, &req); 445 assert(n == 1); 446 len = readv(sock->vss_conn_fd, &iov, n); 447 448 if (len == 0 || (len < 0 && errno == EWOULDBLOCK)) { 449 vq_retchains(vq, 1); 450 vq_endchains(vq, 0); 451 if (len == 0) 452 goto close; 453 454 return; 455 } 456 457 vq_relchain(vq, req.idx, len); 458 } while (vq_has_descs(vq)); 459 460 vq_endchains(vq, 1); 461 462 close: 463 mevent_delete_close(sock->vss_conn_evp); 464 sock->vss_conn_fd = -1; 465 sock->vss_open = false; 466 } 467 468 static void 469 pci_vtcon_sock_tx(struct pci_vtcon_port *port, void *arg, struct iovec *iov, 470 int niov) 471 { 472 struct pci_vtcon_sock *sock; 473 int i, ret; 474 475 sock = (struct pci_vtcon_sock *)arg; 476 477 if (sock->vss_conn_fd == -1) 478 return; 479 480 for (i = 0; i < niov; i++) { 481 ret = stream_write(sock->vss_conn_fd, iov[i].iov_base, 482 iov[i].iov_len); 483 if (ret <= 0) 484 break; 485 } 486 487 if (ret <= 0) { 488 mevent_delete_close(sock->vss_conn_evp); 489 sock->vss_conn_fd = -1; 490 sock->vss_open = false; 491 } 492 } 493 494 static void 495 pci_vtcon_control_tx(struct pci_vtcon_port *port, void *arg, struct iovec *iov, 496 int niov) 497 { 498 struct pci_vtcon_softc *sc; 499 struct pci_vtcon_port *tmp; 500 struct pci_vtcon_control resp, *ctrl; 501 int i; 502 503 assert(niov == 1); 504 505 sc = port->vsp_sc; 506 ctrl = (struct pci_vtcon_control *)iov->iov_base; 507 508 switch (ctrl->event) { 509 case VTCON_DEVICE_READY: 510 sc->vsc_ready = true; 511 /* set port ready events for registered ports */ 512 for (i = 0; i < VTCON_MAXPORTS; i++) { 513 tmp = &sc->vsc_ports[i]; 514 if (tmp->vsp_enabled) 515 pci_vtcon_announce_port(tmp); 516 517 if (tmp->vsp_open) 518 pci_vtcon_open_port(tmp, true); 519 } 520 break; 521 522 case VTCON_PORT_READY: 523 tmp = &sc->vsc_ports[ctrl->id]; 524 if (ctrl->id >= VTCON_MAXPORTS || !tmp->vsp_enabled) { 525 WPRINTF(("VTCON_PORT_READY event for unknown port %d", 526 ctrl->id)); 527 return; 528 } 529 530 if (tmp->vsp_console) { 531 resp.event = VTCON_CONSOLE_PORT; 532 resp.id = ctrl->id; 533 resp.value = 1; 534 pci_vtcon_control_send(sc, &resp, NULL, 0); 535 } 536 break; 537 } 538 } 539 540 static void 541 pci_vtcon_announce_port(struct pci_vtcon_port *port) 542 { 543 struct pci_vtcon_control event; 544 545 event.id = port->vsp_id; 546 event.event = VTCON_DEVICE_ADD; 547 event.value = 1; 548 pci_vtcon_control_send(port->vsp_sc, &event, NULL, 0); 549 550 event.event = VTCON_PORT_NAME; 551 pci_vtcon_control_send(port->vsp_sc, &event, port->vsp_name, 552 strlen(port->vsp_name)); 553 } 554 555 static void 556 pci_vtcon_open_port(struct pci_vtcon_port *port, bool open) 557 { 558 struct pci_vtcon_control event; 559 560 if (!port->vsp_sc->vsc_ready) { 561 port->vsp_open = true; 562 return; 563 } 564 565 event.id = port->vsp_id; 566 event.event = VTCON_PORT_OPEN; 567 event.value = (int)open; 568 pci_vtcon_control_send(port->vsp_sc, &event, NULL, 0); 569 } 570 571 static void 572 pci_vtcon_control_send(struct pci_vtcon_softc *sc, 573 struct pci_vtcon_control *ctrl, const void *payload, size_t len) 574 { 575 struct vqueue_info *vq; 576 struct vi_req req; 577 struct iovec iov; 578 int n; 579 580 vq = pci_vtcon_port_to_vq(&sc->vsc_control_port, true); 581 582 if (!vq_has_descs(vq)) 583 return; 584 585 n = vq_getchain(vq, &iov, 1, &req); 586 assert(n == 1); 587 588 memcpy(iov.iov_base, ctrl, sizeof(struct pci_vtcon_control)); 589 if (payload != NULL && len > 0) 590 memcpy(iov.iov_base + sizeof(struct pci_vtcon_control), 591 payload, len); 592 593 vq_relchain(vq, req.idx, sizeof(struct pci_vtcon_control) + len); 594 vq_endchains(vq, 1); 595 } 596 597 598 static void 599 pci_vtcon_notify_tx(void *vsc, struct vqueue_info *vq) 600 { 601 struct pci_vtcon_softc *sc; 602 struct pci_vtcon_port *port; 603 struct iovec iov[1]; 604 struct vi_req req; 605 int n; 606 607 sc = vsc; 608 port = pci_vtcon_vq_to_port(sc, vq); 609 610 while (vq_has_descs(vq)) { 611 n = vq_getchain(vq, iov, 1, &req); 612 assert(n == 1); 613 if (port != NULL) 614 port->vsp_cb(port, port->vsp_arg, iov, 1); 615 616 /* 617 * Release this chain and handle more 618 */ 619 vq_relchain(vq, req.idx, 0); 620 } 621 vq_endchains(vq, 1); /* Generate interrupt if appropriate. */ 622 } 623 624 static void 625 pci_vtcon_notify_rx(void *vsc, struct vqueue_info *vq) 626 { 627 struct pci_vtcon_softc *sc; 628 struct pci_vtcon_port *port; 629 630 sc = vsc; 631 port = pci_vtcon_vq_to_port(sc, vq); 632 633 if (!port->vsp_rx_ready) { 634 port->vsp_rx_ready = 1; 635 vq_kick_disable(vq); 636 } 637 } 638 639 /* 640 * Each console device has a "port" node which contains nodes for 641 * each port. Ports are numbered starting at 0. 642 */ 643 static int 644 pci_vtcon_legacy_config_port(nvlist_t *nvl, int port, char *opt) 645 { 646 char *name, *path; 647 char node_name[sizeof("XX")]; 648 nvlist_t *port_nvl; 649 650 name = strsep(&opt, "="); 651 path = opt; 652 if (path == NULL) { 653 EPRINTLN("vtcon: port %s requires a path", name); 654 return (-1); 655 } 656 if (port >= VTCON_MAXPORTS) { 657 EPRINTLN("vtcon: too many ports"); 658 return (-1); 659 } 660 snprintf(node_name, sizeof(node_name), "%d", port); 661 port_nvl = create_relative_config_node(nvl, node_name); 662 set_config_value_node(port_nvl, "name", name); 663 set_config_value_node(port_nvl, "path", path); 664 return (0); 665 } 666 667 static int 668 pci_vtcon_legacy_config(nvlist_t *nvl, const char *opts) 669 { 670 char *opt, *str, *tofree; 671 nvlist_t *ports_nvl; 672 int error, port; 673 674 ports_nvl = create_relative_config_node(nvl, "port"); 675 tofree = str = strdup(opts); 676 error = 0; 677 port = 0; 678 while ((opt = strsep(&str, ",")) != NULL) { 679 error = pci_vtcon_legacy_config_port(ports_nvl, port, opt); 680 if (error) 681 break; 682 port++; 683 } 684 free(tofree); 685 return (error); 686 } 687 688 static int 689 pci_vtcon_init(struct vmctx *ctx, struct pci_devinst *pi, nvlist_t *nvl) 690 { 691 struct pci_vtcon_softc *sc; 692 nvlist_t *ports_nvl; 693 int i; 694 695 sc = calloc(1, sizeof(struct pci_vtcon_softc)); 696 sc->vsc_config = calloc(1, sizeof(struct pci_vtcon_config)); 697 sc->vsc_config->max_nr_ports = VTCON_MAXPORTS; 698 sc->vsc_config->cols = 80; 699 sc->vsc_config->rows = 25; 700 701 pthread_mutex_init(&sc->vsc_mtx, NULL); 702 703 vi_softc_linkup(&sc->vsc_vs, &vtcon_vi_consts, sc, pi, sc->vsc_queues); 704 sc->vsc_vs.vs_mtx = &sc->vsc_mtx; 705 706 for (i = 0; i < VTCON_MAXQ; i++) { 707 sc->vsc_queues[i].vq_qsize = VTCON_RINGSZ; 708 sc->vsc_queues[i].vq_notify = i % 2 == 0 709 ? pci_vtcon_notify_rx 710 : pci_vtcon_notify_tx; 711 } 712 713 /* initialize config space */ 714 pci_set_cfgdata16(pi, PCIR_DEVICE, VIRTIO_DEV_CONSOLE); 715 pci_set_cfgdata16(pi, PCIR_VENDOR, VIRTIO_VENDOR); 716 pci_set_cfgdata8(pi, PCIR_CLASS, PCIC_SIMPLECOMM); 717 pci_set_cfgdata16(pi, PCIR_SUBDEV_0, VIRTIO_ID_CONSOLE); 718 pci_set_cfgdata16(pi, PCIR_SUBVEND_0, VIRTIO_VENDOR); 719 720 if (vi_intr_init(&sc->vsc_vs, 1, fbsdrun_virtio_msix())) 721 return (1); 722 vi_set_io_bar(&sc->vsc_vs, 0); 723 724 /* create control port */ 725 sc->vsc_control_port.vsp_sc = sc; 726 sc->vsc_control_port.vsp_txq = 2; 727 sc->vsc_control_port.vsp_rxq = 3; 728 sc->vsc_control_port.vsp_cb = pci_vtcon_control_tx; 729 sc->vsc_control_port.vsp_enabled = true; 730 731 ports_nvl = find_relative_config_node(nvl, "port"); 732 if (ports_nvl != NULL) { 733 const char *name; 734 void *cookie; 735 int type; 736 737 cookie = NULL; 738 while ((name = nvlist_next(ports_nvl, &type, &cookie)) != 739 NULL) { 740 if (type != NV_TYPE_NVLIST) 741 continue; 742 743 if (pci_vtcon_sock_add(sc, name, 744 nvlist_get_nvlist(ports_nvl, name)) < 0) { 745 EPRINTLN("cannot create port %s: %s", 746 name, strerror(errno)); 747 return (1); 748 } 749 } 750 } 751 752 return (0); 753 } 754 755 struct pci_devemu pci_de_vcon = { 756 .pe_emu = "virtio-console", 757 .pe_init = pci_vtcon_init, 758 .pe_barwrite = vi_pci_write, 759 .pe_barread = vi_pci_read 760 }; 761 PCI_EMUL_SET(pci_de_vcon); 762