1 /* 2 * Virtio GPU Device 3 * 4 * Copyright Red Hat, Inc. 2013-2014 5 * 6 * Authors: 7 * Dave Airlie <airlied@redhat.com> 8 * Gerd Hoffmann <kraxel@redhat.com> 9 * 10 * This work is licensed under the terms of the GNU GPL, version 2 or later. 11 * See the COPYING file in the top-level directory. 12 */ 13 14 #include "qemu/osdep.h" 15 #include "qemu-common.h" 16 #include "qemu/iov.h" 17 #include "ui/console.h" 18 #include "trace.h" 19 #include "hw/virtio/virtio.h" 20 #include "hw/virtio/virtio-gpu.h" 21 #include "hw/virtio/virtio-bus.h" 22 #include "migration/blocker.h" 23 #include "qemu/log.h" 24 #include "qapi/error.h" 25 26 #define VIRTIO_GPU_VM_VERSION 1 27 28 static struct virtio_gpu_simple_resource* 29 virtio_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id); 30 31 static void virtio_gpu_cleanup_mapping(struct virtio_gpu_simple_resource *res); 32 33 #ifdef CONFIG_VIRGL 34 #include <virglrenderer.h> 35 #define VIRGL(_g, _virgl, _simple, ...) \ 36 do { \ 37 if (_g->use_virgl_renderer) { \ 38 _virgl(__VA_ARGS__); \ 39 } else { \ 40 _simple(__VA_ARGS__); \ 41 } \ 42 } while (0) 43 #else 44 #define VIRGL(_g, _virgl, _simple, ...) \ 45 do { \ 46 _simple(__VA_ARGS__); \ 47 } while (0) 48 #endif 49 50 static void update_cursor_data_simple(VirtIOGPU *g, 51 struct virtio_gpu_scanout *s, 52 uint32_t resource_id) 53 { 54 struct virtio_gpu_simple_resource *res; 55 uint32_t pixels; 56 57 res = virtio_gpu_find_resource(g, resource_id); 58 if (!res) { 59 return; 60 } 61 62 if (pixman_image_get_width(res->image) != s->current_cursor->width || 63 pixman_image_get_height(res->image) != s->current_cursor->height) { 64 return; 65 } 66 67 pixels = s->current_cursor->width * s->current_cursor->height; 68 memcpy(s->current_cursor->data, 69 pixman_image_get_data(res->image), 70 pixels * sizeof(uint32_t)); 71 } 72 73 #ifdef CONFIG_VIRGL 74 75 static void update_cursor_data_virgl(VirtIOGPU *g, 76 struct virtio_gpu_scanout *s, 77 uint32_t resource_id) 78 { 79 uint32_t width, height; 80 uint32_t pixels, *data; 81 82 data = virgl_renderer_get_cursor_data(resource_id, &width, &height); 83 if (!data) { 84 return; 85 } 86 87 if (width != s->current_cursor->width || 88 height != s->current_cursor->height) { 89 free(data); 90 return; 91 } 92 93 pixels = s->current_cursor->width * s->current_cursor->height; 94 memcpy(s->current_cursor->data, data, pixels * sizeof(uint32_t)); 95 free(data); 96 } 97 98 #endif 99 100 static void update_cursor(VirtIOGPU *g, struct virtio_gpu_update_cursor *cursor) 101 { 102 struct virtio_gpu_scanout *s; 103 bool move = cursor->hdr.type == VIRTIO_GPU_CMD_MOVE_CURSOR; 104 105 if (cursor->pos.scanout_id >= g->conf.max_outputs) { 106 return; 107 } 108 s = &g->scanout[cursor->pos.scanout_id]; 109 110 trace_virtio_gpu_update_cursor(cursor->pos.scanout_id, 111 cursor->pos.x, 112 cursor->pos.y, 113 move ? "move" : "update", 114 cursor->resource_id); 115 116 if (!move) { 117 if (!s->current_cursor) { 118 s->current_cursor = cursor_alloc(64, 64); 119 } 120 121 s->current_cursor->hot_x = cursor->hot_x; 122 s->current_cursor->hot_y = cursor->hot_y; 123 124 if (cursor->resource_id > 0) { 125 VIRGL(g, update_cursor_data_virgl, update_cursor_data_simple, 126 g, s, cursor->resource_id); 127 } 128 dpy_cursor_define(s->con, s->current_cursor); 129 130 s->cursor = *cursor; 131 } else { 132 s->cursor.pos.x = cursor->pos.x; 133 s->cursor.pos.y = cursor->pos.y; 134 } 135 dpy_mouse_set(s->con, cursor->pos.x, cursor->pos.y, 136 cursor->resource_id ? 1 : 0); 137 } 138 139 static void virtio_gpu_get_config(VirtIODevice *vdev, uint8_t *config) 140 { 141 VirtIOGPU *g = VIRTIO_GPU(vdev); 142 memcpy(config, &g->virtio_config, sizeof(g->virtio_config)); 143 } 144 145 static void virtio_gpu_set_config(VirtIODevice *vdev, const uint8_t *config) 146 { 147 VirtIOGPU *g = VIRTIO_GPU(vdev); 148 struct virtio_gpu_config vgconfig; 149 150 memcpy(&vgconfig, config, sizeof(g->virtio_config)); 151 152 if (vgconfig.events_clear) { 153 g->virtio_config.events_read &= ~vgconfig.events_clear; 154 } 155 } 156 157 static uint64_t virtio_gpu_get_features(VirtIODevice *vdev, uint64_t features, 158 Error **errp) 159 { 160 VirtIOGPU *g = VIRTIO_GPU(vdev); 161 162 if (virtio_gpu_virgl_enabled(g->conf)) { 163 features |= (1 << VIRTIO_GPU_F_VIRGL); 164 } 165 return features; 166 } 167 168 static void virtio_gpu_set_features(VirtIODevice *vdev, uint64_t features) 169 { 170 static const uint32_t virgl = (1 << VIRTIO_GPU_F_VIRGL); 171 VirtIOGPU *g = VIRTIO_GPU(vdev); 172 173 g->use_virgl_renderer = ((features & virgl) == virgl); 174 trace_virtio_gpu_features(g->use_virgl_renderer); 175 } 176 177 static void virtio_gpu_notify_event(VirtIOGPU *g, uint32_t event_type) 178 { 179 g->virtio_config.events_read |= event_type; 180 virtio_notify_config(&g->parent_obj); 181 } 182 183 static struct virtio_gpu_simple_resource * 184 virtio_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id) 185 { 186 struct virtio_gpu_simple_resource *res; 187 188 QTAILQ_FOREACH(res, &g->reslist, next) { 189 if (res->resource_id == resource_id) { 190 return res; 191 } 192 } 193 return NULL; 194 } 195 196 void virtio_gpu_ctrl_response(VirtIOGPU *g, 197 struct virtio_gpu_ctrl_command *cmd, 198 struct virtio_gpu_ctrl_hdr *resp, 199 size_t resp_len) 200 { 201 size_t s; 202 203 if (cmd->cmd_hdr.flags & VIRTIO_GPU_FLAG_FENCE) { 204 resp->flags |= VIRTIO_GPU_FLAG_FENCE; 205 resp->fence_id = cmd->cmd_hdr.fence_id; 206 resp->ctx_id = cmd->cmd_hdr.ctx_id; 207 } 208 s = iov_from_buf(cmd->elem.in_sg, cmd->elem.in_num, 0, resp, resp_len); 209 if (s != resp_len) { 210 qemu_log_mask(LOG_GUEST_ERROR, 211 "%s: response size incorrect %zu vs %zu\n", 212 __func__, s, resp_len); 213 } 214 virtqueue_push(cmd->vq, &cmd->elem, s); 215 virtio_notify(VIRTIO_DEVICE(g), cmd->vq); 216 cmd->finished = true; 217 } 218 219 void virtio_gpu_ctrl_response_nodata(VirtIOGPU *g, 220 struct virtio_gpu_ctrl_command *cmd, 221 enum virtio_gpu_ctrl_type type) 222 { 223 struct virtio_gpu_ctrl_hdr resp; 224 225 memset(&resp, 0, sizeof(resp)); 226 resp.type = type; 227 virtio_gpu_ctrl_response(g, cmd, &resp, sizeof(resp)); 228 } 229 230 static void 231 virtio_gpu_fill_display_info(VirtIOGPU *g, 232 struct virtio_gpu_resp_display_info *dpy_info) 233 { 234 int i; 235 236 for (i = 0; i < g->conf.max_outputs; i++) { 237 if (g->enabled_output_bitmask & (1 << i)) { 238 dpy_info->pmodes[i].enabled = 1; 239 dpy_info->pmodes[i].r.width = g->req_state[i].width; 240 dpy_info->pmodes[i].r.height = g->req_state[i].height; 241 } 242 } 243 } 244 245 void virtio_gpu_get_display_info(VirtIOGPU *g, 246 struct virtio_gpu_ctrl_command *cmd) 247 { 248 struct virtio_gpu_resp_display_info display_info; 249 250 trace_virtio_gpu_cmd_get_display_info(); 251 memset(&display_info, 0, sizeof(display_info)); 252 display_info.hdr.type = VIRTIO_GPU_RESP_OK_DISPLAY_INFO; 253 virtio_gpu_fill_display_info(g, &display_info); 254 virtio_gpu_ctrl_response(g, cmd, &display_info.hdr, 255 sizeof(display_info)); 256 } 257 258 static pixman_format_code_t get_pixman_format(uint32_t virtio_gpu_format) 259 { 260 switch (virtio_gpu_format) { 261 case VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM: 262 return PIXMAN_BE_b8g8r8x8; 263 case VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM: 264 return PIXMAN_BE_b8g8r8a8; 265 case VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM: 266 return PIXMAN_BE_x8r8g8b8; 267 case VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM: 268 return PIXMAN_BE_a8r8g8b8; 269 case VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM: 270 return PIXMAN_BE_r8g8b8x8; 271 case VIRTIO_GPU_FORMAT_R8G8B8A8_UNORM: 272 return PIXMAN_BE_r8g8b8a8; 273 case VIRTIO_GPU_FORMAT_X8B8G8R8_UNORM: 274 return PIXMAN_BE_x8b8g8r8; 275 case VIRTIO_GPU_FORMAT_A8B8G8R8_UNORM: 276 return PIXMAN_BE_a8b8g8r8; 277 default: 278 return 0; 279 } 280 } 281 282 static void virtio_gpu_resource_create_2d(VirtIOGPU *g, 283 struct virtio_gpu_ctrl_command *cmd) 284 { 285 pixman_format_code_t pformat; 286 struct virtio_gpu_simple_resource *res; 287 struct virtio_gpu_resource_create_2d c2d; 288 289 VIRTIO_GPU_FILL_CMD(c2d); 290 trace_virtio_gpu_cmd_res_create_2d(c2d.resource_id, c2d.format, 291 c2d.width, c2d.height); 292 293 if (c2d.resource_id == 0) { 294 qemu_log_mask(LOG_GUEST_ERROR, "%s: resource id 0 is not allowed\n", 295 __func__); 296 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 297 return; 298 } 299 300 res = virtio_gpu_find_resource(g, c2d.resource_id); 301 if (res) { 302 qemu_log_mask(LOG_GUEST_ERROR, "%s: resource already exists %d\n", 303 __func__, c2d.resource_id); 304 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 305 return; 306 } 307 308 res = g_new0(struct virtio_gpu_simple_resource, 1); 309 310 res->width = c2d.width; 311 res->height = c2d.height; 312 res->format = c2d.format; 313 res->resource_id = c2d.resource_id; 314 315 pformat = get_pixman_format(c2d.format); 316 if (!pformat) { 317 qemu_log_mask(LOG_GUEST_ERROR, 318 "%s: host couldn't handle guest format %d\n", 319 __func__, c2d.format); 320 g_free(res); 321 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; 322 return; 323 } 324 325 res->hostmem = PIXMAN_FORMAT_BPP(pformat) * c2d.width * c2d.height; 326 if (res->hostmem + g->hostmem < g->conf.max_hostmem) { 327 res->image = pixman_image_create_bits(pformat, 328 c2d.width, 329 c2d.height, 330 NULL, 0); 331 } 332 333 if (!res->image) { 334 qemu_log_mask(LOG_GUEST_ERROR, 335 "%s: resource creation failed %d %d %d\n", 336 __func__, c2d.resource_id, c2d.width, c2d.height); 337 g_free(res); 338 cmd->error = VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY; 339 return; 340 } 341 342 QTAILQ_INSERT_HEAD(&g->reslist, res, next); 343 g->hostmem += res->hostmem; 344 } 345 346 static void virtio_gpu_resource_destroy(VirtIOGPU *g, 347 struct virtio_gpu_simple_resource *res) 348 { 349 pixman_image_unref(res->image); 350 virtio_gpu_cleanup_mapping(res); 351 QTAILQ_REMOVE(&g->reslist, res, next); 352 g->hostmem -= res->hostmem; 353 g_free(res); 354 } 355 356 static void virtio_gpu_resource_unref(VirtIOGPU *g, 357 struct virtio_gpu_ctrl_command *cmd) 358 { 359 struct virtio_gpu_simple_resource *res; 360 struct virtio_gpu_resource_unref unref; 361 362 VIRTIO_GPU_FILL_CMD(unref); 363 trace_virtio_gpu_cmd_res_unref(unref.resource_id); 364 365 res = virtio_gpu_find_resource(g, unref.resource_id); 366 if (!res) { 367 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", 368 __func__, unref.resource_id); 369 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 370 return; 371 } 372 virtio_gpu_resource_destroy(g, res); 373 } 374 375 static void virtio_gpu_transfer_to_host_2d(VirtIOGPU *g, 376 struct virtio_gpu_ctrl_command *cmd) 377 { 378 struct virtio_gpu_simple_resource *res; 379 int h; 380 uint32_t src_offset, dst_offset, stride; 381 int bpp; 382 pixman_format_code_t format; 383 struct virtio_gpu_transfer_to_host_2d t2d; 384 385 VIRTIO_GPU_FILL_CMD(t2d); 386 trace_virtio_gpu_cmd_res_xfer_toh_2d(t2d.resource_id); 387 388 res = virtio_gpu_find_resource(g, t2d.resource_id); 389 if (!res || !res->iov) { 390 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", 391 __func__, t2d.resource_id); 392 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 393 return; 394 } 395 396 if (t2d.r.x > res->width || 397 t2d.r.y > res->height || 398 t2d.r.width > res->width || 399 t2d.r.height > res->height || 400 t2d.r.x + t2d.r.width > res->width || 401 t2d.r.y + t2d.r.height > res->height) { 402 qemu_log_mask(LOG_GUEST_ERROR, "%s: transfer bounds outside resource" 403 " bounds for resource %d: %d %d %d %d vs %d %d\n", 404 __func__, t2d.resource_id, t2d.r.x, t2d.r.y, 405 t2d.r.width, t2d.r.height, res->width, res->height); 406 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; 407 return; 408 } 409 410 format = pixman_image_get_format(res->image); 411 bpp = (PIXMAN_FORMAT_BPP(format) + 7) / 8; 412 stride = pixman_image_get_stride(res->image); 413 414 if (t2d.offset || t2d.r.x || t2d.r.y || 415 t2d.r.width != pixman_image_get_width(res->image)) { 416 void *img_data = pixman_image_get_data(res->image); 417 for (h = 0; h < t2d.r.height; h++) { 418 src_offset = t2d.offset + stride * h; 419 dst_offset = (t2d.r.y + h) * stride + (t2d.r.x * bpp); 420 421 iov_to_buf(res->iov, res->iov_cnt, src_offset, 422 (uint8_t *)img_data 423 + dst_offset, t2d.r.width * bpp); 424 } 425 } else { 426 iov_to_buf(res->iov, res->iov_cnt, 0, 427 pixman_image_get_data(res->image), 428 pixman_image_get_stride(res->image) 429 * pixman_image_get_height(res->image)); 430 } 431 } 432 433 static void virtio_gpu_resource_flush(VirtIOGPU *g, 434 struct virtio_gpu_ctrl_command *cmd) 435 { 436 struct virtio_gpu_simple_resource *res; 437 struct virtio_gpu_resource_flush rf; 438 pixman_region16_t flush_region; 439 int i; 440 441 VIRTIO_GPU_FILL_CMD(rf); 442 trace_virtio_gpu_cmd_res_flush(rf.resource_id, 443 rf.r.width, rf.r.height, rf.r.x, rf.r.y); 444 445 res = virtio_gpu_find_resource(g, rf.resource_id); 446 if (!res) { 447 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", 448 __func__, rf.resource_id); 449 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 450 return; 451 } 452 453 if (rf.r.x > res->width || 454 rf.r.y > res->height || 455 rf.r.width > res->width || 456 rf.r.height > res->height || 457 rf.r.x + rf.r.width > res->width || 458 rf.r.y + rf.r.height > res->height) { 459 qemu_log_mask(LOG_GUEST_ERROR, "%s: flush bounds outside resource" 460 " bounds for resource %d: %d %d %d %d vs %d %d\n", 461 __func__, rf.resource_id, rf.r.x, rf.r.y, 462 rf.r.width, rf.r.height, res->width, res->height); 463 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; 464 return; 465 } 466 467 pixman_region_init_rect(&flush_region, 468 rf.r.x, rf.r.y, rf.r.width, rf.r.height); 469 for (i = 0; i < g->conf.max_outputs; i++) { 470 struct virtio_gpu_scanout *scanout; 471 pixman_region16_t region, finalregion; 472 pixman_box16_t *extents; 473 474 if (!(res->scanout_bitmask & (1 << i))) { 475 continue; 476 } 477 scanout = &g->scanout[i]; 478 479 pixman_region_init(&finalregion); 480 pixman_region_init_rect(®ion, scanout->x, scanout->y, 481 scanout->width, scanout->height); 482 483 pixman_region_intersect(&finalregion, &flush_region, ®ion); 484 pixman_region_translate(&finalregion, -scanout->x, -scanout->y); 485 extents = pixman_region_extents(&finalregion); 486 /* work out the area we need to update for each console */ 487 dpy_gfx_update(g->scanout[i].con, 488 extents->x1, extents->y1, 489 extents->x2 - extents->x1, 490 extents->y2 - extents->y1); 491 492 pixman_region_fini(®ion); 493 pixman_region_fini(&finalregion); 494 } 495 pixman_region_fini(&flush_region); 496 } 497 498 static void virtio_unref_resource(pixman_image_t *image, void *data) 499 { 500 pixman_image_unref(data); 501 } 502 503 static void virtio_gpu_set_scanout(VirtIOGPU *g, 504 struct virtio_gpu_ctrl_command *cmd) 505 { 506 struct virtio_gpu_simple_resource *res; 507 struct virtio_gpu_scanout *scanout; 508 pixman_format_code_t format; 509 uint32_t offset; 510 int bpp; 511 struct virtio_gpu_set_scanout ss; 512 513 VIRTIO_GPU_FILL_CMD(ss); 514 trace_virtio_gpu_cmd_set_scanout(ss.scanout_id, ss.resource_id, 515 ss.r.width, ss.r.height, ss.r.x, ss.r.y); 516 517 if (ss.scanout_id >= g->conf.max_outputs) { 518 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout id specified %d", 519 __func__, ss.scanout_id); 520 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID; 521 return; 522 } 523 524 g->enable = 1; 525 if (ss.resource_id == 0) { 526 scanout = &g->scanout[ss.scanout_id]; 527 if (scanout->resource_id) { 528 res = virtio_gpu_find_resource(g, scanout->resource_id); 529 if (res) { 530 res->scanout_bitmask &= ~(1 << ss.scanout_id); 531 } 532 } 533 if (ss.scanout_id == 0) { 534 qemu_log_mask(LOG_GUEST_ERROR, 535 "%s: illegal scanout id specified %d", 536 __func__, ss.scanout_id); 537 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID; 538 return; 539 } 540 dpy_gfx_replace_surface(g->scanout[ss.scanout_id].con, NULL); 541 scanout->ds = NULL; 542 scanout->width = 0; 543 scanout->height = 0; 544 return; 545 } 546 547 /* create a surface for this scanout */ 548 res = virtio_gpu_find_resource(g, ss.resource_id); 549 if (!res) { 550 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", 551 __func__, ss.resource_id); 552 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 553 return; 554 } 555 556 if (ss.r.x > res->width || 557 ss.r.y > res->height || 558 ss.r.width > res->width || 559 ss.r.height > res->height || 560 ss.r.x + ss.r.width > res->width || 561 ss.r.y + ss.r.height > res->height) { 562 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout %d bounds for" 563 " resource %d, (%d,%d)+%d,%d vs %d %d\n", 564 __func__, ss.scanout_id, ss.resource_id, ss.r.x, ss.r.y, 565 ss.r.width, ss.r.height, res->width, res->height); 566 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; 567 return; 568 } 569 570 scanout = &g->scanout[ss.scanout_id]; 571 572 format = pixman_image_get_format(res->image); 573 bpp = (PIXMAN_FORMAT_BPP(format) + 7) / 8; 574 offset = (ss.r.x * bpp) + ss.r.y * pixman_image_get_stride(res->image); 575 if (!scanout->ds || surface_data(scanout->ds) 576 != ((uint8_t *)pixman_image_get_data(res->image) + offset) || 577 scanout->width != ss.r.width || 578 scanout->height != ss.r.height) { 579 pixman_image_t *rect; 580 void *ptr = (uint8_t *)pixman_image_get_data(res->image) + offset; 581 rect = pixman_image_create_bits(format, ss.r.width, ss.r.height, ptr, 582 pixman_image_get_stride(res->image)); 583 pixman_image_ref(res->image); 584 pixman_image_set_destroy_function(rect, virtio_unref_resource, 585 res->image); 586 /* realloc the surface ptr */ 587 scanout->ds = qemu_create_displaysurface_pixman(rect); 588 if (!scanout->ds) { 589 cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; 590 return; 591 } 592 pixman_image_unref(rect); 593 dpy_gfx_replace_surface(g->scanout[ss.scanout_id].con, scanout->ds); 594 } 595 596 res->scanout_bitmask |= (1 << ss.scanout_id); 597 scanout->resource_id = ss.resource_id; 598 scanout->x = ss.r.x; 599 scanout->y = ss.r.y; 600 scanout->width = ss.r.width; 601 scanout->height = ss.r.height; 602 } 603 604 int virtio_gpu_create_mapping_iov(struct virtio_gpu_resource_attach_backing *ab, 605 struct virtio_gpu_ctrl_command *cmd, 606 uint64_t **addr, struct iovec **iov) 607 { 608 struct virtio_gpu_mem_entry *ents; 609 size_t esize, s; 610 int i; 611 612 if (ab->nr_entries > 16384) { 613 qemu_log_mask(LOG_GUEST_ERROR, 614 "%s: nr_entries is too big (%d > 16384)\n", 615 __func__, ab->nr_entries); 616 return -1; 617 } 618 619 esize = sizeof(*ents) * ab->nr_entries; 620 ents = g_malloc(esize); 621 s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, 622 sizeof(*ab), ents, esize); 623 if (s != esize) { 624 qemu_log_mask(LOG_GUEST_ERROR, 625 "%s: command data size incorrect %zu vs %zu\n", 626 __func__, s, esize); 627 g_free(ents); 628 return -1; 629 } 630 631 *iov = g_malloc0(sizeof(struct iovec) * ab->nr_entries); 632 if (addr) { 633 *addr = g_malloc0(sizeof(uint64_t) * ab->nr_entries); 634 } 635 for (i = 0; i < ab->nr_entries; i++) { 636 hwaddr len = ents[i].length; 637 (*iov)[i].iov_len = ents[i].length; 638 (*iov)[i].iov_base = cpu_physical_memory_map(ents[i].addr, &len, 1); 639 if (addr) { 640 (*addr)[i] = ents[i].addr; 641 } 642 if (!(*iov)[i].iov_base || len != ents[i].length) { 643 qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to map MMIO memory for" 644 " resource %d element %d\n", 645 __func__, ab->resource_id, i); 646 virtio_gpu_cleanup_mapping_iov(*iov, i); 647 g_free(ents); 648 *iov = NULL; 649 if (addr) { 650 g_free(*addr); 651 *addr = NULL; 652 } 653 return -1; 654 } 655 } 656 g_free(ents); 657 return 0; 658 } 659 660 void virtio_gpu_cleanup_mapping_iov(struct iovec *iov, uint32_t count) 661 { 662 int i; 663 664 for (i = 0; i < count; i++) { 665 cpu_physical_memory_unmap(iov[i].iov_base, iov[i].iov_len, 1, 666 iov[i].iov_len); 667 } 668 g_free(iov); 669 } 670 671 static void virtio_gpu_cleanup_mapping(struct virtio_gpu_simple_resource *res) 672 { 673 virtio_gpu_cleanup_mapping_iov(res->iov, res->iov_cnt); 674 res->iov = NULL; 675 res->iov_cnt = 0; 676 g_free(res->addrs); 677 res->addrs = NULL; 678 } 679 680 static void 681 virtio_gpu_resource_attach_backing(VirtIOGPU *g, 682 struct virtio_gpu_ctrl_command *cmd) 683 { 684 struct virtio_gpu_simple_resource *res; 685 struct virtio_gpu_resource_attach_backing ab; 686 int ret; 687 688 VIRTIO_GPU_FILL_CMD(ab); 689 trace_virtio_gpu_cmd_res_back_attach(ab.resource_id); 690 691 res = virtio_gpu_find_resource(g, ab.resource_id); 692 if (!res) { 693 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", 694 __func__, ab.resource_id); 695 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 696 return; 697 } 698 699 if (res->iov) { 700 cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; 701 return; 702 } 703 704 ret = virtio_gpu_create_mapping_iov(&ab, cmd, &res->addrs, &res->iov); 705 if (ret != 0) { 706 cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; 707 return; 708 } 709 710 res->iov_cnt = ab.nr_entries; 711 } 712 713 static void 714 virtio_gpu_resource_detach_backing(VirtIOGPU *g, 715 struct virtio_gpu_ctrl_command *cmd) 716 { 717 struct virtio_gpu_simple_resource *res; 718 struct virtio_gpu_resource_detach_backing detach; 719 720 VIRTIO_GPU_FILL_CMD(detach); 721 trace_virtio_gpu_cmd_res_back_detach(detach.resource_id); 722 723 res = virtio_gpu_find_resource(g, detach.resource_id); 724 if (!res || !res->iov) { 725 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", 726 __func__, detach.resource_id); 727 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 728 return; 729 } 730 virtio_gpu_cleanup_mapping(res); 731 } 732 733 static void virtio_gpu_simple_process_cmd(VirtIOGPU *g, 734 struct virtio_gpu_ctrl_command *cmd) 735 { 736 VIRTIO_GPU_FILL_CMD(cmd->cmd_hdr); 737 738 switch (cmd->cmd_hdr.type) { 739 case VIRTIO_GPU_CMD_GET_DISPLAY_INFO: 740 virtio_gpu_get_display_info(g, cmd); 741 break; 742 case VIRTIO_GPU_CMD_RESOURCE_CREATE_2D: 743 virtio_gpu_resource_create_2d(g, cmd); 744 break; 745 case VIRTIO_GPU_CMD_RESOURCE_UNREF: 746 virtio_gpu_resource_unref(g, cmd); 747 break; 748 case VIRTIO_GPU_CMD_RESOURCE_FLUSH: 749 virtio_gpu_resource_flush(g, cmd); 750 break; 751 case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D: 752 virtio_gpu_transfer_to_host_2d(g, cmd); 753 break; 754 case VIRTIO_GPU_CMD_SET_SCANOUT: 755 virtio_gpu_set_scanout(g, cmd); 756 break; 757 case VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING: 758 virtio_gpu_resource_attach_backing(g, cmd); 759 break; 760 case VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING: 761 virtio_gpu_resource_detach_backing(g, cmd); 762 break; 763 default: 764 cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; 765 break; 766 } 767 if (!cmd->finished) { 768 virtio_gpu_ctrl_response_nodata(g, cmd, cmd->error ? cmd->error : 769 VIRTIO_GPU_RESP_OK_NODATA); 770 } 771 } 772 773 static void virtio_gpu_handle_ctrl_cb(VirtIODevice *vdev, VirtQueue *vq) 774 { 775 VirtIOGPU *g = VIRTIO_GPU(vdev); 776 qemu_bh_schedule(g->ctrl_bh); 777 } 778 779 static void virtio_gpu_handle_cursor_cb(VirtIODevice *vdev, VirtQueue *vq) 780 { 781 VirtIOGPU *g = VIRTIO_GPU(vdev); 782 qemu_bh_schedule(g->cursor_bh); 783 } 784 785 void virtio_gpu_process_cmdq(VirtIOGPU *g) 786 { 787 struct virtio_gpu_ctrl_command *cmd; 788 789 while (!QTAILQ_EMPTY(&g->cmdq)) { 790 cmd = QTAILQ_FIRST(&g->cmdq); 791 792 /* process command */ 793 VIRGL(g, virtio_gpu_virgl_process_cmd, virtio_gpu_simple_process_cmd, 794 g, cmd); 795 if (cmd->waiting) { 796 break; 797 } 798 QTAILQ_REMOVE(&g->cmdq, cmd, next); 799 if (virtio_gpu_stats_enabled(g->conf)) { 800 g->stats.requests++; 801 } 802 803 if (!cmd->finished) { 804 QTAILQ_INSERT_TAIL(&g->fenceq, cmd, next); 805 g->inflight++; 806 if (virtio_gpu_stats_enabled(g->conf)) { 807 if (g->stats.max_inflight < g->inflight) { 808 g->stats.max_inflight = g->inflight; 809 } 810 fprintf(stderr, "inflight: %3d (+)\r", g->inflight); 811 } 812 } else { 813 g_free(cmd); 814 } 815 } 816 } 817 818 static void virtio_gpu_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) 819 { 820 VirtIOGPU *g = VIRTIO_GPU(vdev); 821 struct virtio_gpu_ctrl_command *cmd; 822 823 if (!virtio_queue_ready(vq)) { 824 return; 825 } 826 827 #ifdef CONFIG_VIRGL 828 if (!g->renderer_inited && g->use_virgl_renderer) { 829 virtio_gpu_virgl_init(g); 830 g->renderer_inited = true; 831 } 832 #endif 833 834 cmd = virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command)); 835 while (cmd) { 836 cmd->vq = vq; 837 cmd->error = 0; 838 cmd->finished = false; 839 cmd->waiting = false; 840 QTAILQ_INSERT_TAIL(&g->cmdq, cmd, next); 841 cmd = virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command)); 842 } 843 844 virtio_gpu_process_cmdq(g); 845 846 #ifdef CONFIG_VIRGL 847 if (g->use_virgl_renderer) { 848 virtio_gpu_virgl_fence_poll(g); 849 } 850 #endif 851 } 852 853 static void virtio_gpu_ctrl_bh(void *opaque) 854 { 855 VirtIOGPU *g = opaque; 856 virtio_gpu_handle_ctrl(&g->parent_obj, g->ctrl_vq); 857 } 858 859 static void virtio_gpu_handle_cursor(VirtIODevice *vdev, VirtQueue *vq) 860 { 861 VirtIOGPU *g = VIRTIO_GPU(vdev); 862 VirtQueueElement *elem; 863 size_t s; 864 struct virtio_gpu_update_cursor cursor_info; 865 866 if (!virtio_queue_ready(vq)) { 867 return; 868 } 869 for (;;) { 870 elem = virtqueue_pop(vq, sizeof(VirtQueueElement)); 871 if (!elem) { 872 break; 873 } 874 875 s = iov_to_buf(elem->out_sg, elem->out_num, 0, 876 &cursor_info, sizeof(cursor_info)); 877 if (s != sizeof(cursor_info)) { 878 qemu_log_mask(LOG_GUEST_ERROR, 879 "%s: cursor size incorrect %zu vs %zu\n", 880 __func__, s, sizeof(cursor_info)); 881 } else { 882 update_cursor(g, &cursor_info); 883 } 884 virtqueue_push(vq, elem, 0); 885 virtio_notify(vdev, vq); 886 g_free(elem); 887 } 888 } 889 890 static void virtio_gpu_cursor_bh(void *opaque) 891 { 892 VirtIOGPU *g = opaque; 893 virtio_gpu_handle_cursor(&g->parent_obj, g->cursor_vq); 894 } 895 896 static void virtio_gpu_invalidate_display(void *opaque) 897 { 898 } 899 900 static void virtio_gpu_update_display(void *opaque) 901 { 902 } 903 904 static void virtio_gpu_text_update(void *opaque, console_ch_t *chardata) 905 { 906 } 907 908 static int virtio_gpu_ui_info(void *opaque, uint32_t idx, QemuUIInfo *info) 909 { 910 VirtIOGPU *g = opaque; 911 912 if (idx >= g->conf.max_outputs) { 913 return -1; 914 } 915 916 g->req_state[idx].x = info->xoff; 917 g->req_state[idx].y = info->yoff; 918 g->req_state[idx].width = info->width; 919 g->req_state[idx].height = info->height; 920 921 if (info->width && info->height) { 922 g->enabled_output_bitmask |= (1 << idx); 923 } else { 924 g->enabled_output_bitmask &= ~(1 << idx); 925 } 926 927 /* send event to guest */ 928 virtio_gpu_notify_event(g, VIRTIO_GPU_EVENT_DISPLAY); 929 return 0; 930 } 931 932 const GraphicHwOps virtio_gpu_ops = { 933 .invalidate = virtio_gpu_invalidate_display, 934 .gfx_update = virtio_gpu_update_display, 935 .text_update = virtio_gpu_text_update, 936 .ui_info = virtio_gpu_ui_info, 937 #ifdef CONFIG_VIRGL 938 .gl_block = virtio_gpu_gl_block, 939 #endif 940 }; 941 942 static const VMStateDescription vmstate_virtio_gpu_scanout = { 943 .name = "virtio-gpu-one-scanout", 944 .version_id = 1, 945 .fields = (VMStateField[]) { 946 VMSTATE_UINT32(resource_id, struct virtio_gpu_scanout), 947 VMSTATE_UINT32(width, struct virtio_gpu_scanout), 948 VMSTATE_UINT32(height, struct virtio_gpu_scanout), 949 VMSTATE_INT32(x, struct virtio_gpu_scanout), 950 VMSTATE_INT32(y, struct virtio_gpu_scanout), 951 VMSTATE_UINT32(cursor.resource_id, struct virtio_gpu_scanout), 952 VMSTATE_UINT32(cursor.hot_x, struct virtio_gpu_scanout), 953 VMSTATE_UINT32(cursor.hot_y, struct virtio_gpu_scanout), 954 VMSTATE_UINT32(cursor.pos.x, struct virtio_gpu_scanout), 955 VMSTATE_UINT32(cursor.pos.y, struct virtio_gpu_scanout), 956 VMSTATE_END_OF_LIST() 957 }, 958 }; 959 960 static const VMStateDescription vmstate_virtio_gpu_scanouts = { 961 .name = "virtio-gpu-scanouts", 962 .version_id = 1, 963 .fields = (VMStateField[]) { 964 VMSTATE_INT32(enable, struct VirtIOGPU), 965 VMSTATE_UINT32_EQUAL(conf.max_outputs, struct VirtIOGPU), 966 VMSTATE_STRUCT_VARRAY_UINT32(scanout, struct VirtIOGPU, 967 conf.max_outputs, 1, 968 vmstate_virtio_gpu_scanout, 969 struct virtio_gpu_scanout), 970 VMSTATE_END_OF_LIST() 971 }, 972 }; 973 974 static int virtio_gpu_save(QEMUFile *f, void *opaque, size_t size, 975 VMStateField *field, QJSON *vmdesc) 976 { 977 VirtIOGPU *g = opaque; 978 struct virtio_gpu_simple_resource *res; 979 int i; 980 981 /* in 2d mode we should never find unprocessed commands here */ 982 assert(QTAILQ_EMPTY(&g->cmdq)); 983 984 QTAILQ_FOREACH(res, &g->reslist, next) { 985 qemu_put_be32(f, res->resource_id); 986 qemu_put_be32(f, res->width); 987 qemu_put_be32(f, res->height); 988 qemu_put_be32(f, res->format); 989 qemu_put_be32(f, res->iov_cnt); 990 for (i = 0; i < res->iov_cnt; i++) { 991 qemu_put_be64(f, res->addrs[i]); 992 qemu_put_be32(f, res->iov[i].iov_len); 993 } 994 qemu_put_buffer(f, (void *)pixman_image_get_data(res->image), 995 pixman_image_get_stride(res->image) * res->height); 996 } 997 qemu_put_be32(f, 0); /* end of list */ 998 999 vmstate_save_state(f, &vmstate_virtio_gpu_scanouts, g, NULL); 1000 1001 return 0; 1002 } 1003 1004 static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size, 1005 VMStateField *field) 1006 { 1007 VirtIOGPU *g = opaque; 1008 struct virtio_gpu_simple_resource *res; 1009 struct virtio_gpu_scanout *scanout; 1010 uint32_t resource_id, pformat; 1011 int i; 1012 1013 g->hostmem = 0; 1014 1015 resource_id = qemu_get_be32(f); 1016 while (resource_id != 0) { 1017 res = g_new0(struct virtio_gpu_simple_resource, 1); 1018 res->resource_id = resource_id; 1019 res->width = qemu_get_be32(f); 1020 res->height = qemu_get_be32(f); 1021 res->format = qemu_get_be32(f); 1022 res->iov_cnt = qemu_get_be32(f); 1023 1024 /* allocate */ 1025 pformat = get_pixman_format(res->format); 1026 if (!pformat) { 1027 g_free(res); 1028 return -EINVAL; 1029 } 1030 res->image = pixman_image_create_bits(pformat, 1031 res->width, res->height, 1032 NULL, 0); 1033 if (!res->image) { 1034 g_free(res); 1035 return -EINVAL; 1036 } 1037 1038 res->hostmem = PIXMAN_FORMAT_BPP(pformat) * res->width * res->height; 1039 1040 res->addrs = g_new(uint64_t, res->iov_cnt); 1041 res->iov = g_new(struct iovec, res->iov_cnt); 1042 1043 /* read data */ 1044 for (i = 0; i < res->iov_cnt; i++) { 1045 res->addrs[i] = qemu_get_be64(f); 1046 res->iov[i].iov_len = qemu_get_be32(f); 1047 } 1048 qemu_get_buffer(f, (void *)pixman_image_get_data(res->image), 1049 pixman_image_get_stride(res->image) * res->height); 1050 1051 /* restore mapping */ 1052 for (i = 0; i < res->iov_cnt; i++) { 1053 hwaddr len = res->iov[i].iov_len; 1054 res->iov[i].iov_base = 1055 cpu_physical_memory_map(res->addrs[i], &len, 1); 1056 if (!res->iov[i].iov_base || len != res->iov[i].iov_len) { 1057 /* Clean up the half-a-mapping we just created... */ 1058 if (res->iov[i].iov_base) { 1059 cpu_physical_memory_unmap(res->iov[i].iov_base, 1060 len, 0, 0); 1061 } 1062 /* ...and the mappings for previous loop iterations */ 1063 res->iov_cnt = i; 1064 virtio_gpu_cleanup_mapping(res); 1065 pixman_image_unref(res->image); 1066 g_free(res); 1067 return -EINVAL; 1068 } 1069 } 1070 1071 QTAILQ_INSERT_HEAD(&g->reslist, res, next); 1072 g->hostmem += res->hostmem; 1073 1074 resource_id = qemu_get_be32(f); 1075 } 1076 1077 /* load & apply scanout state */ 1078 vmstate_load_state(f, &vmstate_virtio_gpu_scanouts, g, 1); 1079 for (i = 0; i < g->conf.max_outputs; i++) { 1080 scanout = &g->scanout[i]; 1081 if (!scanout->resource_id) { 1082 continue; 1083 } 1084 res = virtio_gpu_find_resource(g, scanout->resource_id); 1085 if (!res) { 1086 return -EINVAL; 1087 } 1088 scanout->ds = qemu_create_displaysurface_pixman(res->image); 1089 if (!scanout->ds) { 1090 return -EINVAL; 1091 } 1092 1093 dpy_gfx_replace_surface(scanout->con, scanout->ds); 1094 dpy_gfx_update(scanout->con, 0, 0, scanout->width, scanout->height); 1095 update_cursor(g, &scanout->cursor); 1096 res->scanout_bitmask |= (1 << i); 1097 } 1098 1099 return 0; 1100 } 1101 1102 static void virtio_gpu_device_realize(DeviceState *qdev, Error **errp) 1103 { 1104 VirtIODevice *vdev = VIRTIO_DEVICE(qdev); 1105 VirtIOGPU *g = VIRTIO_GPU(qdev); 1106 bool have_virgl; 1107 Error *local_err = NULL; 1108 int i; 1109 1110 if (g->conf.max_outputs > VIRTIO_GPU_MAX_SCANOUTS) { 1111 error_setg(errp, "invalid max_outputs > %d", VIRTIO_GPU_MAX_SCANOUTS); 1112 return; 1113 } 1114 1115 g->use_virgl_renderer = false; 1116 #if !defined(CONFIG_VIRGL) || defined(HOST_WORDS_BIGENDIAN) 1117 have_virgl = false; 1118 #else 1119 have_virgl = display_opengl; 1120 #endif 1121 if (!have_virgl) { 1122 g->conf.flags &= ~(1 << VIRTIO_GPU_FLAG_VIRGL_ENABLED); 1123 } 1124 1125 if (virtio_gpu_virgl_enabled(g->conf)) { 1126 error_setg(&g->migration_blocker, "virgl is not yet migratable"); 1127 migrate_add_blocker(g->migration_blocker, &local_err); 1128 if (local_err) { 1129 error_propagate(errp, local_err); 1130 error_free(g->migration_blocker); 1131 return; 1132 } 1133 } 1134 1135 g->config_size = sizeof(struct virtio_gpu_config); 1136 g->virtio_config.num_scanouts = g->conf.max_outputs; 1137 virtio_init(VIRTIO_DEVICE(g), "virtio-gpu", VIRTIO_ID_GPU, 1138 g->config_size); 1139 1140 g->req_state[0].width = g->conf.xres; 1141 g->req_state[0].height = g->conf.yres; 1142 1143 if (virtio_gpu_virgl_enabled(g->conf)) { 1144 /* use larger control queue in 3d mode */ 1145 g->ctrl_vq = virtio_add_queue(vdev, 256, virtio_gpu_handle_ctrl_cb); 1146 g->cursor_vq = virtio_add_queue(vdev, 16, virtio_gpu_handle_cursor_cb); 1147 g->virtio_config.num_capsets = 1; 1148 } else { 1149 g->ctrl_vq = virtio_add_queue(vdev, 64, virtio_gpu_handle_ctrl_cb); 1150 g->cursor_vq = virtio_add_queue(vdev, 16, virtio_gpu_handle_cursor_cb); 1151 } 1152 1153 g->ctrl_bh = qemu_bh_new(virtio_gpu_ctrl_bh, g); 1154 g->cursor_bh = qemu_bh_new(virtio_gpu_cursor_bh, g); 1155 QTAILQ_INIT(&g->reslist); 1156 QTAILQ_INIT(&g->cmdq); 1157 QTAILQ_INIT(&g->fenceq); 1158 1159 g->enabled_output_bitmask = 1; 1160 g->qdev = qdev; 1161 1162 for (i = 0; i < g->conf.max_outputs; i++) { 1163 g->scanout[i].con = 1164 graphic_console_init(DEVICE(g), i, &virtio_gpu_ops, g); 1165 if (i > 0) { 1166 dpy_gfx_replace_surface(g->scanout[i].con, NULL); 1167 } 1168 } 1169 } 1170 1171 static void virtio_gpu_device_unrealize(DeviceState *qdev, Error **errp) 1172 { 1173 VirtIOGPU *g = VIRTIO_GPU(qdev); 1174 if (g->migration_blocker) { 1175 migrate_del_blocker(g->migration_blocker); 1176 error_free(g->migration_blocker); 1177 } 1178 } 1179 1180 static void virtio_gpu_instance_init(Object *obj) 1181 { 1182 } 1183 1184 static void virtio_gpu_reset(VirtIODevice *vdev) 1185 { 1186 VirtIOGPU *g = VIRTIO_GPU(vdev); 1187 struct virtio_gpu_simple_resource *res, *tmp; 1188 int i; 1189 1190 g->enable = 0; 1191 1192 QTAILQ_FOREACH_SAFE(res, &g->reslist, next, tmp) { 1193 virtio_gpu_resource_destroy(g, res); 1194 } 1195 for (i = 0; i < g->conf.max_outputs; i++) { 1196 #if 0 1197 g->req_state[i].x = 0; 1198 g->req_state[i].y = 0; 1199 if (i == 0) { 1200 g->req_state[0].width = 1024; 1201 g->req_state[0].height = 768; 1202 } else { 1203 g->req_state[i].width = 0; 1204 g->req_state[i].height = 0; 1205 } 1206 #endif 1207 g->scanout[i].resource_id = 0; 1208 g->scanout[i].width = 0; 1209 g->scanout[i].height = 0; 1210 g->scanout[i].x = 0; 1211 g->scanout[i].y = 0; 1212 g->scanout[i].ds = NULL; 1213 } 1214 g->enabled_output_bitmask = 1; 1215 1216 #ifdef CONFIG_VIRGL 1217 if (g->use_virgl_renderer) { 1218 virtio_gpu_virgl_reset(g); 1219 g->use_virgl_renderer = 0; 1220 } 1221 #endif 1222 } 1223 1224 /* 1225 * For historical reasons virtio_gpu does not adhere to virtio migration 1226 * scheme as described in doc/virtio-migration.txt, in a sense that no 1227 * save/load callback are provided to the core. Instead the device data 1228 * is saved/loaded after the core data. 1229 * 1230 * Because of this we need a special vmsd. 1231 */ 1232 static const VMStateDescription vmstate_virtio_gpu = { 1233 .name = "virtio-gpu", 1234 .minimum_version_id = VIRTIO_GPU_VM_VERSION, 1235 .version_id = VIRTIO_GPU_VM_VERSION, 1236 .fields = (VMStateField[]) { 1237 VMSTATE_VIRTIO_DEVICE /* core */, 1238 { 1239 .name = "virtio-gpu", 1240 .info = &(const VMStateInfo) { 1241 .name = "virtio-gpu", 1242 .get = virtio_gpu_load, 1243 .put = virtio_gpu_save, 1244 }, 1245 .flags = VMS_SINGLE, 1246 } /* device */, 1247 VMSTATE_END_OF_LIST() 1248 }, 1249 }; 1250 1251 static Property virtio_gpu_properties[] = { 1252 DEFINE_PROP_UINT32("max_outputs", VirtIOGPU, conf.max_outputs, 1), 1253 DEFINE_PROP_SIZE("max_hostmem", VirtIOGPU, conf.max_hostmem, 1254 256 * 1024 * 1024), 1255 #ifdef CONFIG_VIRGL 1256 DEFINE_PROP_BIT("virgl", VirtIOGPU, conf.flags, 1257 VIRTIO_GPU_FLAG_VIRGL_ENABLED, true), 1258 DEFINE_PROP_BIT("stats", VirtIOGPU, conf.flags, 1259 VIRTIO_GPU_FLAG_STATS_ENABLED, false), 1260 #endif 1261 DEFINE_PROP_UINT32("xres", VirtIOGPU, conf.xres, 1024), 1262 DEFINE_PROP_UINT32("yres", VirtIOGPU, conf.yres, 768), 1263 DEFINE_PROP_END_OF_LIST(), 1264 }; 1265 1266 static void virtio_gpu_class_init(ObjectClass *klass, void *data) 1267 { 1268 DeviceClass *dc = DEVICE_CLASS(klass); 1269 VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass); 1270 1271 vdc->realize = virtio_gpu_device_realize; 1272 vdc->unrealize = virtio_gpu_device_unrealize; 1273 vdc->get_config = virtio_gpu_get_config; 1274 vdc->set_config = virtio_gpu_set_config; 1275 vdc->get_features = virtio_gpu_get_features; 1276 vdc->set_features = virtio_gpu_set_features; 1277 1278 vdc->reset = virtio_gpu_reset; 1279 1280 dc->props = virtio_gpu_properties; 1281 dc->vmsd = &vmstate_virtio_gpu; 1282 dc->hotpluggable = false; 1283 } 1284 1285 static const TypeInfo virtio_gpu_info = { 1286 .name = TYPE_VIRTIO_GPU, 1287 .parent = TYPE_VIRTIO_DEVICE, 1288 .instance_size = sizeof(VirtIOGPU), 1289 .instance_init = virtio_gpu_instance_init, 1290 .class_init = virtio_gpu_class_init, 1291 }; 1292 1293 static void virtio_register_types(void) 1294 { 1295 type_register_static(&virtio_gpu_info); 1296 } 1297 1298 type_init(virtio_register_types) 1299 1300 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_ctrl_hdr) != 24); 1301 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_update_cursor) != 56); 1302 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_resource_unref) != 32); 1303 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_resource_create_2d) != 40); 1304 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_set_scanout) != 48); 1305 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_resource_flush) != 48); 1306 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_transfer_to_host_2d) != 56); 1307 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_mem_entry) != 16); 1308 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_resource_attach_backing) != 32); 1309 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_resource_detach_backing) != 32); 1310 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_resp_display_info) != 408); 1311 1312 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_transfer_host_3d) != 72); 1313 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_resource_create_3d) != 72); 1314 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_ctx_create) != 96); 1315 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_ctx_destroy) != 24); 1316 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_ctx_resource) != 32); 1317 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_cmd_submit) != 32); 1318 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_get_capset_info) != 32); 1319 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_resp_capset_info) != 40); 1320 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_get_capset) != 32); 1321 QEMU_BUILD_BUG_ON(sizeof(struct virtio_gpu_resp_capset) != 24); 1322