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/units.h" 16 #include "qemu/iov.h" 17 #include "ui/console.h" 18 #include "trace.h" 19 #include "sysemu/dma.h" 20 #include "sysemu/sysemu.h" 21 #include "hw/virtio/virtio.h" 22 #include "migration/qemu-file-types.h" 23 #include "hw/virtio/virtio-gpu.h" 24 #include "hw/virtio/virtio-gpu-bswap.h" 25 #include "hw/virtio/virtio-gpu-pixman.h" 26 #include "hw/virtio/virtio-bus.h" 27 #include "hw/display/edid.h" 28 #include "hw/qdev-properties.h" 29 #include "qemu/log.h" 30 #include "qemu/module.h" 31 #include "qapi/error.h" 32 #include "qemu/error-report.h" 33 34 #define VIRTIO_GPU_VM_VERSION 1 35 36 static struct virtio_gpu_simple_resource* 37 virtio_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id); 38 39 static void virtio_gpu_cleanup_mapping(VirtIOGPU *g, 40 struct virtio_gpu_simple_resource *res); 41 42 #ifdef CONFIG_VIRGL 43 #include <virglrenderer.h> 44 #define VIRGL(_g, _virgl, _simple, ...) \ 45 do { \ 46 if (_g->parent_obj.use_virgl_renderer) { \ 47 _virgl(__VA_ARGS__); \ 48 } else { \ 49 _simple(__VA_ARGS__); \ 50 } \ 51 } while (0) 52 #else 53 #define VIRGL(_g, _virgl, _simple, ...) \ 54 do { \ 55 _simple(__VA_ARGS__); \ 56 } while (0) 57 #endif 58 59 static void update_cursor_data_simple(VirtIOGPU *g, 60 struct virtio_gpu_scanout *s, 61 uint32_t resource_id) 62 { 63 struct virtio_gpu_simple_resource *res; 64 uint32_t pixels; 65 66 res = virtio_gpu_find_resource(g, resource_id); 67 if (!res) { 68 return; 69 } 70 71 if (pixman_image_get_width(res->image) != s->current_cursor->width || 72 pixman_image_get_height(res->image) != s->current_cursor->height) { 73 return; 74 } 75 76 pixels = s->current_cursor->width * s->current_cursor->height; 77 memcpy(s->current_cursor->data, 78 pixman_image_get_data(res->image), 79 pixels * sizeof(uint32_t)); 80 } 81 82 #ifdef CONFIG_VIRGL 83 84 static void update_cursor_data_virgl(VirtIOGPU *g, 85 struct virtio_gpu_scanout *s, 86 uint32_t resource_id) 87 { 88 uint32_t width, height; 89 uint32_t pixels, *data; 90 91 data = virgl_renderer_get_cursor_data(resource_id, &width, &height); 92 if (!data) { 93 return; 94 } 95 96 if (width != s->current_cursor->width || 97 height != s->current_cursor->height) { 98 free(data); 99 return; 100 } 101 102 pixels = s->current_cursor->width * s->current_cursor->height; 103 memcpy(s->current_cursor->data, data, pixels * sizeof(uint32_t)); 104 free(data); 105 } 106 107 #endif 108 109 static void update_cursor(VirtIOGPU *g, struct virtio_gpu_update_cursor *cursor) 110 { 111 struct virtio_gpu_scanout *s; 112 bool move = cursor->hdr.type == VIRTIO_GPU_CMD_MOVE_CURSOR; 113 114 if (cursor->pos.scanout_id >= g->parent_obj.conf.max_outputs) { 115 return; 116 } 117 s = &g->parent_obj.scanout[cursor->pos.scanout_id]; 118 119 trace_virtio_gpu_update_cursor(cursor->pos.scanout_id, 120 cursor->pos.x, 121 cursor->pos.y, 122 move ? "move" : "update", 123 cursor->resource_id); 124 125 if (!move) { 126 if (!s->current_cursor) { 127 s->current_cursor = cursor_alloc(64, 64); 128 } 129 130 s->current_cursor->hot_x = cursor->hot_x; 131 s->current_cursor->hot_y = cursor->hot_y; 132 133 if (cursor->resource_id > 0) { 134 VIRGL(g, update_cursor_data_virgl, update_cursor_data_simple, 135 g, s, cursor->resource_id); 136 } 137 dpy_cursor_define(s->con, s->current_cursor); 138 139 s->cursor = *cursor; 140 } else { 141 s->cursor.pos.x = cursor->pos.x; 142 s->cursor.pos.y = cursor->pos.y; 143 } 144 dpy_mouse_set(s->con, cursor->pos.x, cursor->pos.y, 145 cursor->resource_id ? 1 : 0); 146 } 147 148 static struct virtio_gpu_simple_resource * 149 virtio_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id) 150 { 151 struct virtio_gpu_simple_resource *res; 152 153 QTAILQ_FOREACH(res, &g->reslist, next) { 154 if (res->resource_id == resource_id) { 155 return res; 156 } 157 } 158 return NULL; 159 } 160 161 void virtio_gpu_ctrl_response(VirtIOGPU *g, 162 struct virtio_gpu_ctrl_command *cmd, 163 struct virtio_gpu_ctrl_hdr *resp, 164 size_t resp_len) 165 { 166 size_t s; 167 168 if (cmd->cmd_hdr.flags & VIRTIO_GPU_FLAG_FENCE) { 169 resp->flags |= VIRTIO_GPU_FLAG_FENCE; 170 resp->fence_id = cmd->cmd_hdr.fence_id; 171 resp->ctx_id = cmd->cmd_hdr.ctx_id; 172 } 173 virtio_gpu_ctrl_hdr_bswap(resp); 174 s = iov_from_buf(cmd->elem.in_sg, cmd->elem.in_num, 0, resp, resp_len); 175 if (s != resp_len) { 176 qemu_log_mask(LOG_GUEST_ERROR, 177 "%s: response size incorrect %zu vs %zu\n", 178 __func__, s, resp_len); 179 } 180 virtqueue_push(cmd->vq, &cmd->elem, s); 181 virtio_notify(VIRTIO_DEVICE(g), cmd->vq); 182 cmd->finished = true; 183 } 184 185 void virtio_gpu_ctrl_response_nodata(VirtIOGPU *g, 186 struct virtio_gpu_ctrl_command *cmd, 187 enum virtio_gpu_ctrl_type type) 188 { 189 struct virtio_gpu_ctrl_hdr resp; 190 191 memset(&resp, 0, sizeof(resp)); 192 resp.type = type; 193 virtio_gpu_ctrl_response(g, cmd, &resp, sizeof(resp)); 194 } 195 196 void virtio_gpu_get_display_info(VirtIOGPU *g, 197 struct virtio_gpu_ctrl_command *cmd) 198 { 199 struct virtio_gpu_resp_display_info display_info; 200 201 trace_virtio_gpu_cmd_get_display_info(); 202 memset(&display_info, 0, sizeof(display_info)); 203 display_info.hdr.type = VIRTIO_GPU_RESP_OK_DISPLAY_INFO; 204 virtio_gpu_base_fill_display_info(VIRTIO_GPU_BASE(g), &display_info); 205 virtio_gpu_ctrl_response(g, cmd, &display_info.hdr, 206 sizeof(display_info)); 207 } 208 209 static void 210 virtio_gpu_generate_edid(VirtIOGPU *g, int scanout, 211 struct virtio_gpu_resp_edid *edid) 212 { 213 VirtIOGPUBase *b = VIRTIO_GPU_BASE(g); 214 qemu_edid_info info = { 215 .prefx = b->req_state[scanout].width, 216 .prefy = b->req_state[scanout].height, 217 }; 218 219 edid->size = cpu_to_le32(sizeof(edid->edid)); 220 qemu_edid_generate(edid->edid, sizeof(edid->edid), &info); 221 } 222 223 void virtio_gpu_get_edid(VirtIOGPU *g, 224 struct virtio_gpu_ctrl_command *cmd) 225 { 226 struct virtio_gpu_resp_edid edid; 227 struct virtio_gpu_cmd_get_edid get_edid; 228 VirtIOGPUBase *b = VIRTIO_GPU_BASE(g); 229 230 VIRTIO_GPU_FILL_CMD(get_edid); 231 virtio_gpu_bswap_32(&get_edid, sizeof(get_edid)); 232 233 if (get_edid.scanout >= b->conf.max_outputs) { 234 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; 235 return; 236 } 237 238 trace_virtio_gpu_cmd_get_edid(get_edid.scanout); 239 memset(&edid, 0, sizeof(edid)); 240 edid.hdr.type = VIRTIO_GPU_RESP_OK_EDID; 241 virtio_gpu_generate_edid(g, get_edid.scanout, &edid); 242 virtio_gpu_ctrl_response(g, cmd, &edid.hdr, sizeof(edid)); 243 } 244 245 static uint32_t calc_image_hostmem(pixman_format_code_t pformat, 246 uint32_t width, uint32_t height) 247 { 248 /* Copied from pixman/pixman-bits-image.c, skip integer overflow check. 249 * pixman_image_create_bits will fail in case it overflow. 250 */ 251 252 int bpp = PIXMAN_FORMAT_BPP(pformat); 253 int stride = ((width * bpp + 0x1f) >> 5) * sizeof(uint32_t); 254 return height * stride; 255 } 256 257 static void virtio_gpu_resource_create_2d(VirtIOGPU *g, 258 struct virtio_gpu_ctrl_command *cmd) 259 { 260 pixman_format_code_t pformat; 261 struct virtio_gpu_simple_resource *res; 262 struct virtio_gpu_resource_create_2d c2d; 263 264 VIRTIO_GPU_FILL_CMD(c2d); 265 virtio_gpu_bswap_32(&c2d, sizeof(c2d)); 266 trace_virtio_gpu_cmd_res_create_2d(c2d.resource_id, c2d.format, 267 c2d.width, c2d.height); 268 269 if (c2d.resource_id == 0) { 270 qemu_log_mask(LOG_GUEST_ERROR, "%s: resource id 0 is not allowed\n", 271 __func__); 272 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 273 return; 274 } 275 276 res = virtio_gpu_find_resource(g, c2d.resource_id); 277 if (res) { 278 qemu_log_mask(LOG_GUEST_ERROR, "%s: resource already exists %d\n", 279 __func__, c2d.resource_id); 280 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 281 return; 282 } 283 284 res = g_new0(struct virtio_gpu_simple_resource, 1); 285 286 res->width = c2d.width; 287 res->height = c2d.height; 288 res->format = c2d.format; 289 res->resource_id = c2d.resource_id; 290 291 pformat = virtio_gpu_get_pixman_format(c2d.format); 292 if (!pformat) { 293 qemu_log_mask(LOG_GUEST_ERROR, 294 "%s: host couldn't handle guest format %d\n", 295 __func__, c2d.format); 296 g_free(res); 297 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; 298 return; 299 } 300 301 res->hostmem = calc_image_hostmem(pformat, c2d.width, c2d.height); 302 if (res->hostmem + g->hostmem < g->conf_max_hostmem) { 303 res->image = pixman_image_create_bits(pformat, 304 c2d.width, 305 c2d.height, 306 NULL, 0); 307 } 308 309 if (!res->image) { 310 qemu_log_mask(LOG_GUEST_ERROR, 311 "%s: resource creation failed %d %d %d\n", 312 __func__, c2d.resource_id, c2d.width, c2d.height); 313 g_free(res); 314 cmd->error = VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY; 315 return; 316 } 317 318 QTAILQ_INSERT_HEAD(&g->reslist, res, next); 319 g->hostmem += res->hostmem; 320 } 321 322 static void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id) 323 { 324 struct virtio_gpu_scanout *scanout = &g->parent_obj.scanout[scanout_id]; 325 struct virtio_gpu_simple_resource *res; 326 DisplaySurface *ds = NULL; 327 328 if (scanout->resource_id == 0) { 329 return; 330 } 331 332 res = virtio_gpu_find_resource(g, scanout->resource_id); 333 if (res) { 334 res->scanout_bitmask &= ~(1 << scanout_id); 335 } 336 337 if (scanout_id == 0) { 338 /* primary head */ 339 ds = qemu_create_message_surface(scanout->width ?: 640, 340 scanout->height ?: 480, 341 "Guest disabled display."); 342 } 343 dpy_gfx_replace_surface(scanout->con, ds); 344 scanout->resource_id = 0; 345 scanout->ds = NULL; 346 scanout->width = 0; 347 scanout->height = 0; 348 } 349 350 static void virtio_gpu_resource_destroy(VirtIOGPU *g, 351 struct virtio_gpu_simple_resource *res) 352 { 353 int i; 354 355 if (res->scanout_bitmask) { 356 for (i = 0; i < g->parent_obj.conf.max_outputs; i++) { 357 if (res->scanout_bitmask & (1 << i)) { 358 virtio_gpu_disable_scanout(g, i); 359 } 360 } 361 } 362 363 pixman_image_unref(res->image); 364 virtio_gpu_cleanup_mapping(g, res); 365 QTAILQ_REMOVE(&g->reslist, res, next); 366 g->hostmem -= res->hostmem; 367 g_free(res); 368 } 369 370 static void virtio_gpu_resource_unref(VirtIOGPU *g, 371 struct virtio_gpu_ctrl_command *cmd) 372 { 373 struct virtio_gpu_simple_resource *res; 374 struct virtio_gpu_resource_unref unref; 375 376 VIRTIO_GPU_FILL_CMD(unref); 377 virtio_gpu_bswap_32(&unref, sizeof(unref)); 378 trace_virtio_gpu_cmd_res_unref(unref.resource_id); 379 380 res = virtio_gpu_find_resource(g, unref.resource_id); 381 if (!res) { 382 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", 383 __func__, unref.resource_id); 384 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 385 return; 386 } 387 virtio_gpu_resource_destroy(g, res); 388 } 389 390 static void virtio_gpu_transfer_to_host_2d(VirtIOGPU *g, 391 struct virtio_gpu_ctrl_command *cmd) 392 { 393 struct virtio_gpu_simple_resource *res; 394 int h; 395 uint32_t src_offset, dst_offset, stride; 396 int bpp; 397 pixman_format_code_t format; 398 struct virtio_gpu_transfer_to_host_2d t2d; 399 400 VIRTIO_GPU_FILL_CMD(t2d); 401 virtio_gpu_t2d_bswap(&t2d); 402 trace_virtio_gpu_cmd_res_xfer_toh_2d(t2d.resource_id); 403 404 res = virtio_gpu_find_resource(g, t2d.resource_id); 405 if (!res || !res->iov) { 406 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", 407 __func__, t2d.resource_id); 408 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 409 return; 410 } 411 412 if (t2d.r.x > res->width || 413 t2d.r.y > res->height || 414 t2d.r.width > res->width || 415 t2d.r.height > res->height || 416 t2d.r.x + t2d.r.width > res->width || 417 t2d.r.y + t2d.r.height > res->height) { 418 qemu_log_mask(LOG_GUEST_ERROR, "%s: transfer bounds outside resource" 419 " bounds for resource %d: %d %d %d %d vs %d %d\n", 420 __func__, t2d.resource_id, t2d.r.x, t2d.r.y, 421 t2d.r.width, t2d.r.height, res->width, res->height); 422 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; 423 return; 424 } 425 426 format = pixman_image_get_format(res->image); 427 bpp = DIV_ROUND_UP(PIXMAN_FORMAT_BPP(format), 8); 428 stride = pixman_image_get_stride(res->image); 429 430 if (t2d.offset || t2d.r.x || t2d.r.y || 431 t2d.r.width != pixman_image_get_width(res->image)) { 432 void *img_data = pixman_image_get_data(res->image); 433 for (h = 0; h < t2d.r.height; h++) { 434 src_offset = t2d.offset + stride * h; 435 dst_offset = (t2d.r.y + h) * stride + (t2d.r.x * bpp); 436 437 iov_to_buf(res->iov, res->iov_cnt, src_offset, 438 (uint8_t *)img_data 439 + dst_offset, t2d.r.width * bpp); 440 } 441 } else { 442 iov_to_buf(res->iov, res->iov_cnt, 0, 443 pixman_image_get_data(res->image), 444 pixman_image_get_stride(res->image) 445 * pixman_image_get_height(res->image)); 446 } 447 } 448 449 static void virtio_gpu_resource_flush(VirtIOGPU *g, 450 struct virtio_gpu_ctrl_command *cmd) 451 { 452 struct virtio_gpu_simple_resource *res; 453 struct virtio_gpu_resource_flush rf; 454 pixman_region16_t flush_region; 455 int i; 456 457 VIRTIO_GPU_FILL_CMD(rf); 458 virtio_gpu_bswap_32(&rf, sizeof(rf)); 459 trace_virtio_gpu_cmd_res_flush(rf.resource_id, 460 rf.r.width, rf.r.height, rf.r.x, rf.r.y); 461 462 res = virtio_gpu_find_resource(g, rf.resource_id); 463 if (!res) { 464 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", 465 __func__, rf.resource_id); 466 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 467 return; 468 } 469 470 if (rf.r.x > res->width || 471 rf.r.y > res->height || 472 rf.r.width > res->width || 473 rf.r.height > res->height || 474 rf.r.x + rf.r.width > res->width || 475 rf.r.y + rf.r.height > res->height) { 476 qemu_log_mask(LOG_GUEST_ERROR, "%s: flush bounds outside resource" 477 " bounds for resource %d: %d %d %d %d vs %d %d\n", 478 __func__, rf.resource_id, rf.r.x, rf.r.y, 479 rf.r.width, rf.r.height, res->width, res->height); 480 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; 481 return; 482 } 483 484 pixman_region_init_rect(&flush_region, 485 rf.r.x, rf.r.y, rf.r.width, rf.r.height); 486 for (i = 0; i < g->parent_obj.conf.max_outputs; i++) { 487 struct virtio_gpu_scanout *scanout; 488 pixman_region16_t region, finalregion; 489 pixman_box16_t *extents; 490 491 if (!(res->scanout_bitmask & (1 << i))) { 492 continue; 493 } 494 scanout = &g->parent_obj.scanout[i]; 495 496 pixman_region_init(&finalregion); 497 pixman_region_init_rect(®ion, scanout->x, scanout->y, 498 scanout->width, scanout->height); 499 500 pixman_region_intersect(&finalregion, &flush_region, ®ion); 501 pixman_region_translate(&finalregion, -scanout->x, -scanout->y); 502 extents = pixman_region_extents(&finalregion); 503 /* work out the area we need to update for each console */ 504 dpy_gfx_update(g->parent_obj.scanout[i].con, 505 extents->x1, extents->y1, 506 extents->x2 - extents->x1, 507 extents->y2 - extents->y1); 508 509 pixman_region_fini(®ion); 510 pixman_region_fini(&finalregion); 511 } 512 pixman_region_fini(&flush_region); 513 } 514 515 static void virtio_unref_resource(pixman_image_t *image, void *data) 516 { 517 pixman_image_unref(data); 518 } 519 520 static void virtio_gpu_set_scanout(VirtIOGPU *g, 521 struct virtio_gpu_ctrl_command *cmd) 522 { 523 struct virtio_gpu_simple_resource *res, *ores; 524 struct virtio_gpu_scanout *scanout; 525 pixman_format_code_t format; 526 uint32_t offset; 527 int bpp; 528 struct virtio_gpu_set_scanout ss; 529 530 VIRTIO_GPU_FILL_CMD(ss); 531 virtio_gpu_bswap_32(&ss, sizeof(ss)); 532 trace_virtio_gpu_cmd_set_scanout(ss.scanout_id, ss.resource_id, 533 ss.r.width, ss.r.height, ss.r.x, ss.r.y); 534 535 if (ss.scanout_id >= g->parent_obj.conf.max_outputs) { 536 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout id specified %d", 537 __func__, ss.scanout_id); 538 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID; 539 return; 540 } 541 542 g->parent_obj.enable = 1; 543 if (ss.resource_id == 0) { 544 virtio_gpu_disable_scanout(g, ss.scanout_id); 545 return; 546 } 547 548 /* create a surface for this scanout */ 549 res = virtio_gpu_find_resource(g, ss.resource_id); 550 if (!res) { 551 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", 552 __func__, ss.resource_id); 553 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 554 return; 555 } 556 557 if (ss.r.x > res->width || 558 ss.r.y > res->height || 559 ss.r.width < 16 || 560 ss.r.height < 16 || 561 ss.r.width > res->width || 562 ss.r.height > res->height || 563 ss.r.x + ss.r.width > res->width || 564 ss.r.y + ss.r.height > res->height) { 565 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout %d bounds for" 566 " resource %d, (%d,%d)+%d,%d vs %d %d\n", 567 __func__, ss.scanout_id, ss.resource_id, ss.r.x, ss.r.y, 568 ss.r.width, ss.r.height, res->width, res->height); 569 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; 570 return; 571 } 572 573 scanout = &g->parent_obj.scanout[ss.scanout_id]; 574 575 format = pixman_image_get_format(res->image); 576 bpp = DIV_ROUND_UP(PIXMAN_FORMAT_BPP(format), 8); 577 offset = (ss.r.x * bpp) + ss.r.y * pixman_image_get_stride(res->image); 578 if (!scanout->ds || surface_data(scanout->ds) 579 != ((uint8_t *)pixman_image_get_data(res->image) + offset) || 580 scanout->width != ss.r.width || 581 scanout->height != ss.r.height) { 582 pixman_image_t *rect; 583 void *ptr = (uint8_t *)pixman_image_get_data(res->image) + offset; 584 rect = pixman_image_create_bits(format, ss.r.width, ss.r.height, ptr, 585 pixman_image_get_stride(res->image)); 586 pixman_image_ref(res->image); 587 pixman_image_set_destroy_function(rect, virtio_unref_resource, 588 res->image); 589 /* realloc the surface ptr */ 590 scanout->ds = qemu_create_displaysurface_pixman(rect); 591 if (!scanout->ds) { 592 cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; 593 return; 594 } 595 pixman_image_unref(rect); 596 dpy_gfx_replace_surface(g->parent_obj.scanout[ss.scanout_id].con, 597 scanout->ds); 598 } 599 600 ores = virtio_gpu_find_resource(g, scanout->resource_id); 601 if (ores) { 602 ores->scanout_bitmask &= ~(1 << ss.scanout_id); 603 } 604 605 res->scanout_bitmask |= (1 << ss.scanout_id); 606 scanout->resource_id = ss.resource_id; 607 scanout->x = ss.r.x; 608 scanout->y = ss.r.y; 609 scanout->width = ss.r.width; 610 scanout->height = ss.r.height; 611 } 612 613 int virtio_gpu_create_mapping_iov(VirtIOGPU *g, 614 struct virtio_gpu_resource_attach_backing *ab, 615 struct virtio_gpu_ctrl_command *cmd, 616 uint64_t **addr, struct iovec **iov) 617 { 618 struct virtio_gpu_mem_entry *ents; 619 size_t esize, s; 620 int i; 621 622 if (ab->nr_entries > 16384) { 623 qemu_log_mask(LOG_GUEST_ERROR, 624 "%s: nr_entries is too big (%d > 16384)\n", 625 __func__, ab->nr_entries); 626 return -1; 627 } 628 629 esize = sizeof(*ents) * ab->nr_entries; 630 ents = g_malloc(esize); 631 s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, 632 sizeof(*ab), ents, esize); 633 if (s != esize) { 634 qemu_log_mask(LOG_GUEST_ERROR, 635 "%s: command data size incorrect %zu vs %zu\n", 636 __func__, s, esize); 637 g_free(ents); 638 return -1; 639 } 640 641 *iov = g_malloc0(sizeof(struct iovec) * ab->nr_entries); 642 if (addr) { 643 *addr = g_malloc0(sizeof(uint64_t) * ab->nr_entries); 644 } 645 for (i = 0; i < ab->nr_entries; i++) { 646 uint64_t a = le64_to_cpu(ents[i].addr); 647 uint32_t l = le32_to_cpu(ents[i].length); 648 hwaddr len = l; 649 (*iov)[i].iov_base = dma_memory_map(VIRTIO_DEVICE(g)->dma_as, 650 a, &len, DMA_DIRECTION_TO_DEVICE); 651 (*iov)[i].iov_len = len; 652 if (addr) { 653 (*addr)[i] = a; 654 } 655 if (!(*iov)[i].iov_base || len != l) { 656 qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to map MMIO memory for" 657 " resource %d element %d\n", 658 __func__, ab->resource_id, i); 659 if ((*iov)[i].iov_base) { 660 i++; /* cleanup the 'i'th map */ 661 } 662 virtio_gpu_cleanup_mapping_iov(g, *iov, i); 663 g_free(ents); 664 *iov = NULL; 665 if (addr) { 666 g_free(*addr); 667 *addr = NULL; 668 } 669 return -1; 670 } 671 } 672 g_free(ents); 673 return 0; 674 } 675 676 void virtio_gpu_cleanup_mapping_iov(VirtIOGPU *g, 677 struct iovec *iov, uint32_t count) 678 { 679 int i; 680 681 for (i = 0; i < count; i++) { 682 dma_memory_unmap(VIRTIO_DEVICE(g)->dma_as, 683 iov[i].iov_base, iov[i].iov_len, 684 DMA_DIRECTION_TO_DEVICE, 685 iov[i].iov_len); 686 } 687 g_free(iov); 688 } 689 690 static void virtio_gpu_cleanup_mapping(VirtIOGPU *g, 691 struct virtio_gpu_simple_resource *res) 692 { 693 virtio_gpu_cleanup_mapping_iov(g, res->iov, res->iov_cnt); 694 res->iov = NULL; 695 res->iov_cnt = 0; 696 g_free(res->addrs); 697 res->addrs = NULL; 698 } 699 700 static void 701 virtio_gpu_resource_attach_backing(VirtIOGPU *g, 702 struct virtio_gpu_ctrl_command *cmd) 703 { 704 struct virtio_gpu_simple_resource *res; 705 struct virtio_gpu_resource_attach_backing ab; 706 int ret; 707 708 VIRTIO_GPU_FILL_CMD(ab); 709 virtio_gpu_bswap_32(&ab, sizeof(ab)); 710 trace_virtio_gpu_cmd_res_back_attach(ab.resource_id); 711 712 res = virtio_gpu_find_resource(g, ab.resource_id); 713 if (!res) { 714 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", 715 __func__, ab.resource_id); 716 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 717 return; 718 } 719 720 if (res->iov) { 721 cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; 722 return; 723 } 724 725 ret = virtio_gpu_create_mapping_iov(g, &ab, cmd, &res->addrs, &res->iov); 726 if (ret != 0) { 727 cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; 728 return; 729 } 730 731 res->iov_cnt = ab.nr_entries; 732 } 733 734 static void 735 virtio_gpu_resource_detach_backing(VirtIOGPU *g, 736 struct virtio_gpu_ctrl_command *cmd) 737 { 738 struct virtio_gpu_simple_resource *res; 739 struct virtio_gpu_resource_detach_backing detach; 740 741 VIRTIO_GPU_FILL_CMD(detach); 742 virtio_gpu_bswap_32(&detach, sizeof(detach)); 743 trace_virtio_gpu_cmd_res_back_detach(detach.resource_id); 744 745 res = virtio_gpu_find_resource(g, detach.resource_id); 746 if (!res || !res->iov) { 747 qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n", 748 __func__, detach.resource_id); 749 cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; 750 return; 751 } 752 virtio_gpu_cleanup_mapping(g, res); 753 } 754 755 static void virtio_gpu_simple_process_cmd(VirtIOGPU *g, 756 struct virtio_gpu_ctrl_command *cmd) 757 { 758 VIRTIO_GPU_FILL_CMD(cmd->cmd_hdr); 759 virtio_gpu_ctrl_hdr_bswap(&cmd->cmd_hdr); 760 761 switch (cmd->cmd_hdr.type) { 762 case VIRTIO_GPU_CMD_GET_DISPLAY_INFO: 763 virtio_gpu_get_display_info(g, cmd); 764 break; 765 case VIRTIO_GPU_CMD_GET_EDID: 766 virtio_gpu_get_edid(g, cmd); 767 break; 768 case VIRTIO_GPU_CMD_RESOURCE_CREATE_2D: 769 virtio_gpu_resource_create_2d(g, cmd); 770 break; 771 case VIRTIO_GPU_CMD_RESOURCE_UNREF: 772 virtio_gpu_resource_unref(g, cmd); 773 break; 774 case VIRTIO_GPU_CMD_RESOURCE_FLUSH: 775 virtio_gpu_resource_flush(g, cmd); 776 break; 777 case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D: 778 virtio_gpu_transfer_to_host_2d(g, cmd); 779 break; 780 case VIRTIO_GPU_CMD_SET_SCANOUT: 781 virtio_gpu_set_scanout(g, cmd); 782 break; 783 case VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING: 784 virtio_gpu_resource_attach_backing(g, cmd); 785 break; 786 case VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING: 787 virtio_gpu_resource_detach_backing(g, cmd); 788 break; 789 default: 790 cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; 791 break; 792 } 793 if (!cmd->finished) { 794 virtio_gpu_ctrl_response_nodata(g, cmd, cmd->error ? cmd->error : 795 VIRTIO_GPU_RESP_OK_NODATA); 796 } 797 } 798 799 static void virtio_gpu_handle_ctrl_cb(VirtIODevice *vdev, VirtQueue *vq) 800 { 801 VirtIOGPU *g = VIRTIO_GPU(vdev); 802 qemu_bh_schedule(g->ctrl_bh); 803 } 804 805 static void virtio_gpu_handle_cursor_cb(VirtIODevice *vdev, VirtQueue *vq) 806 { 807 VirtIOGPU *g = VIRTIO_GPU(vdev); 808 qemu_bh_schedule(g->cursor_bh); 809 } 810 811 void virtio_gpu_process_cmdq(VirtIOGPU *g) 812 { 813 struct virtio_gpu_ctrl_command *cmd; 814 815 while (!QTAILQ_EMPTY(&g->cmdq)) { 816 cmd = QTAILQ_FIRST(&g->cmdq); 817 818 if (g->parent_obj.renderer_blocked) { 819 break; 820 } 821 822 /* process command */ 823 VIRGL(g, virtio_gpu_virgl_process_cmd, virtio_gpu_simple_process_cmd, 824 g, cmd); 825 826 QTAILQ_REMOVE(&g->cmdq, cmd, next); 827 if (virtio_gpu_stats_enabled(g->parent_obj.conf)) { 828 g->stats.requests++; 829 } 830 831 if (!cmd->finished) { 832 QTAILQ_INSERT_TAIL(&g->fenceq, cmd, next); 833 g->inflight++; 834 if (virtio_gpu_stats_enabled(g->parent_obj.conf)) { 835 if (g->stats.max_inflight < g->inflight) { 836 g->stats.max_inflight = g->inflight; 837 } 838 fprintf(stderr, "inflight: %3d (+)\r", g->inflight); 839 } 840 } else { 841 g_free(cmd); 842 } 843 } 844 } 845 846 static void virtio_gpu_gl_unblock(VirtIOGPUBase *b) 847 { 848 VirtIOGPU *g = VIRTIO_GPU(b); 849 850 #ifdef CONFIG_VIRGL 851 if (g->renderer_reset) { 852 g->renderer_reset = false; 853 virtio_gpu_virgl_reset(g); 854 } 855 #endif 856 virtio_gpu_process_cmdq(g); 857 } 858 859 static void virtio_gpu_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) 860 { 861 VirtIOGPU *g = VIRTIO_GPU(vdev); 862 struct virtio_gpu_ctrl_command *cmd; 863 864 if (!virtio_queue_ready(vq)) { 865 return; 866 } 867 868 #ifdef CONFIG_VIRGL 869 if (!g->renderer_inited && g->parent_obj.use_virgl_renderer) { 870 virtio_gpu_virgl_init(g); 871 g->renderer_inited = true; 872 } 873 #endif 874 875 cmd = virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command)); 876 while (cmd) { 877 cmd->vq = vq; 878 cmd->error = 0; 879 cmd->finished = false; 880 QTAILQ_INSERT_TAIL(&g->cmdq, cmd, next); 881 cmd = virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command)); 882 } 883 884 virtio_gpu_process_cmdq(g); 885 886 #ifdef CONFIG_VIRGL 887 if (g->parent_obj.use_virgl_renderer) { 888 virtio_gpu_virgl_fence_poll(g); 889 } 890 #endif 891 } 892 893 static void virtio_gpu_ctrl_bh(void *opaque) 894 { 895 VirtIOGPU *g = opaque; 896 virtio_gpu_handle_ctrl(&g->parent_obj.parent_obj, g->ctrl_vq); 897 } 898 899 static void virtio_gpu_handle_cursor(VirtIODevice *vdev, VirtQueue *vq) 900 { 901 VirtIOGPU *g = VIRTIO_GPU(vdev); 902 VirtQueueElement *elem; 903 size_t s; 904 struct virtio_gpu_update_cursor cursor_info; 905 906 if (!virtio_queue_ready(vq)) { 907 return; 908 } 909 for (;;) { 910 elem = virtqueue_pop(vq, sizeof(VirtQueueElement)); 911 if (!elem) { 912 break; 913 } 914 915 s = iov_to_buf(elem->out_sg, elem->out_num, 0, 916 &cursor_info, sizeof(cursor_info)); 917 if (s != sizeof(cursor_info)) { 918 qemu_log_mask(LOG_GUEST_ERROR, 919 "%s: cursor size incorrect %zu vs %zu\n", 920 __func__, s, sizeof(cursor_info)); 921 } else { 922 virtio_gpu_bswap_32(&cursor_info, sizeof(cursor_info)); 923 update_cursor(g, &cursor_info); 924 } 925 virtqueue_push(vq, elem, 0); 926 virtio_notify(vdev, vq); 927 g_free(elem); 928 } 929 } 930 931 static void virtio_gpu_cursor_bh(void *opaque) 932 { 933 VirtIOGPU *g = opaque; 934 virtio_gpu_handle_cursor(&g->parent_obj.parent_obj, g->cursor_vq); 935 } 936 937 static const VMStateDescription vmstate_virtio_gpu_scanout = { 938 .name = "virtio-gpu-one-scanout", 939 .version_id = 1, 940 .fields = (VMStateField[]) { 941 VMSTATE_UINT32(resource_id, struct virtio_gpu_scanout), 942 VMSTATE_UINT32(width, struct virtio_gpu_scanout), 943 VMSTATE_UINT32(height, struct virtio_gpu_scanout), 944 VMSTATE_INT32(x, struct virtio_gpu_scanout), 945 VMSTATE_INT32(y, struct virtio_gpu_scanout), 946 VMSTATE_UINT32(cursor.resource_id, struct virtio_gpu_scanout), 947 VMSTATE_UINT32(cursor.hot_x, struct virtio_gpu_scanout), 948 VMSTATE_UINT32(cursor.hot_y, struct virtio_gpu_scanout), 949 VMSTATE_UINT32(cursor.pos.x, struct virtio_gpu_scanout), 950 VMSTATE_UINT32(cursor.pos.y, struct virtio_gpu_scanout), 951 VMSTATE_END_OF_LIST() 952 }, 953 }; 954 955 static const VMStateDescription vmstate_virtio_gpu_scanouts = { 956 .name = "virtio-gpu-scanouts", 957 .version_id = 1, 958 .fields = (VMStateField[]) { 959 VMSTATE_INT32(parent_obj.enable, struct VirtIOGPU), 960 VMSTATE_UINT32_EQUAL(parent_obj.conf.max_outputs, 961 struct VirtIOGPU, NULL), 962 VMSTATE_STRUCT_VARRAY_UINT32(parent_obj.scanout, struct VirtIOGPU, 963 parent_obj.conf.max_outputs, 1, 964 vmstate_virtio_gpu_scanout, 965 struct virtio_gpu_scanout), 966 VMSTATE_END_OF_LIST() 967 }, 968 }; 969 970 static int virtio_gpu_save(QEMUFile *f, void *opaque, size_t size, 971 const VMStateField *field, QJSON *vmdesc) 972 { 973 VirtIOGPU *g = opaque; 974 struct virtio_gpu_simple_resource *res; 975 int i; 976 977 /* in 2d mode we should never find unprocessed commands here */ 978 assert(QTAILQ_EMPTY(&g->cmdq)); 979 980 QTAILQ_FOREACH(res, &g->reslist, next) { 981 qemu_put_be32(f, res->resource_id); 982 qemu_put_be32(f, res->width); 983 qemu_put_be32(f, res->height); 984 qemu_put_be32(f, res->format); 985 qemu_put_be32(f, res->iov_cnt); 986 for (i = 0; i < res->iov_cnt; i++) { 987 qemu_put_be64(f, res->addrs[i]); 988 qemu_put_be32(f, res->iov[i].iov_len); 989 } 990 qemu_put_buffer(f, (void *)pixman_image_get_data(res->image), 991 pixman_image_get_stride(res->image) * res->height); 992 } 993 qemu_put_be32(f, 0); /* end of list */ 994 995 return vmstate_save_state(f, &vmstate_virtio_gpu_scanouts, g, NULL); 996 } 997 998 static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size, 999 const VMStateField *field) 1000 { 1001 VirtIOGPU *g = opaque; 1002 struct virtio_gpu_simple_resource *res; 1003 struct virtio_gpu_scanout *scanout; 1004 uint32_t resource_id, pformat; 1005 int i; 1006 1007 g->hostmem = 0; 1008 1009 resource_id = qemu_get_be32(f); 1010 while (resource_id != 0) { 1011 res = virtio_gpu_find_resource(g, resource_id); 1012 if (res) { 1013 return -EINVAL; 1014 } 1015 1016 res = g_new0(struct virtio_gpu_simple_resource, 1); 1017 res->resource_id = resource_id; 1018 res->width = qemu_get_be32(f); 1019 res->height = qemu_get_be32(f); 1020 res->format = qemu_get_be32(f); 1021 res->iov_cnt = qemu_get_be32(f); 1022 1023 /* allocate */ 1024 pformat = virtio_gpu_get_pixman_format(res->format); 1025 if (!pformat) { 1026 g_free(res); 1027 return -EINVAL; 1028 } 1029 res->image = pixman_image_create_bits(pformat, 1030 res->width, res->height, 1031 NULL, 0); 1032 if (!res->image) { 1033 g_free(res); 1034 return -EINVAL; 1035 } 1036 1037 res->hostmem = calc_image_hostmem(pformat, res->width, res->height); 1038 1039 res->addrs = g_new(uint64_t, res->iov_cnt); 1040 res->iov = g_new(struct iovec, res->iov_cnt); 1041 1042 /* read data */ 1043 for (i = 0; i < res->iov_cnt; i++) { 1044 res->addrs[i] = qemu_get_be64(f); 1045 res->iov[i].iov_len = qemu_get_be32(f); 1046 } 1047 qemu_get_buffer(f, (void *)pixman_image_get_data(res->image), 1048 pixman_image_get_stride(res->image) * res->height); 1049 1050 /* restore mapping */ 1051 for (i = 0; i < res->iov_cnt; i++) { 1052 hwaddr len = res->iov[i].iov_len; 1053 res->iov[i].iov_base = 1054 dma_memory_map(VIRTIO_DEVICE(g)->dma_as, 1055 res->addrs[i], &len, DMA_DIRECTION_TO_DEVICE); 1056 1057 if (!res->iov[i].iov_base || len != res->iov[i].iov_len) { 1058 /* Clean up the half-a-mapping we just created... */ 1059 if (res->iov[i].iov_base) { 1060 dma_memory_unmap(VIRTIO_DEVICE(g)->dma_as, 1061 res->iov[i].iov_base, 1062 len, 1063 DMA_DIRECTION_TO_DEVICE, 1064 0); 1065 } 1066 /* ...and the mappings for previous loop iterations */ 1067 res->iov_cnt = i; 1068 virtio_gpu_cleanup_mapping(g, res); 1069 pixman_image_unref(res->image); 1070 g_free(res); 1071 return -EINVAL; 1072 } 1073 } 1074 1075 QTAILQ_INSERT_HEAD(&g->reslist, res, next); 1076 g->hostmem += res->hostmem; 1077 1078 resource_id = qemu_get_be32(f); 1079 } 1080 1081 /* load & apply scanout state */ 1082 vmstate_load_state(f, &vmstate_virtio_gpu_scanouts, g, 1); 1083 for (i = 0; i < g->parent_obj.conf.max_outputs; i++) { 1084 scanout = &g->parent_obj.scanout[i]; 1085 if (!scanout->resource_id) { 1086 continue; 1087 } 1088 res = virtio_gpu_find_resource(g, scanout->resource_id); 1089 if (!res) { 1090 return -EINVAL; 1091 } 1092 scanout->ds = qemu_create_displaysurface_pixman(res->image); 1093 if (!scanout->ds) { 1094 return -EINVAL; 1095 } 1096 1097 dpy_gfx_replace_surface(scanout->con, scanout->ds); 1098 dpy_gfx_update_full(scanout->con); 1099 if (scanout->cursor.resource_id) { 1100 update_cursor(g, &scanout->cursor); 1101 } 1102 res->scanout_bitmask |= (1 << i); 1103 } 1104 1105 return 0; 1106 } 1107 1108 static void virtio_gpu_device_realize(DeviceState *qdev, Error **errp) 1109 { 1110 VirtIODevice *vdev = VIRTIO_DEVICE(qdev); 1111 VirtIOGPU *g = VIRTIO_GPU(qdev); 1112 bool have_virgl; 1113 1114 #if !defined(CONFIG_VIRGL) || defined(HOST_WORDS_BIGENDIAN) 1115 have_virgl = false; 1116 #else 1117 have_virgl = display_opengl; 1118 #endif 1119 if (!have_virgl) { 1120 g->parent_obj.conf.flags &= ~(1 << VIRTIO_GPU_FLAG_VIRGL_ENABLED); 1121 } else { 1122 #if defined(CONFIG_VIRGL) 1123 VIRTIO_GPU_BASE(g)->virtio_config.num_capsets = 1124 virtio_gpu_virgl_get_num_capsets(g); 1125 #endif 1126 } 1127 1128 if (!virtio_gpu_base_device_realize(qdev, 1129 virtio_gpu_handle_ctrl_cb, 1130 virtio_gpu_handle_cursor_cb, 1131 errp)) { 1132 return; 1133 } 1134 1135 g->ctrl_vq = virtio_get_queue(vdev, 0); 1136 g->cursor_vq = virtio_get_queue(vdev, 1); 1137 g->ctrl_bh = qemu_bh_new(virtio_gpu_ctrl_bh, g); 1138 g->cursor_bh = qemu_bh_new(virtio_gpu_cursor_bh, g); 1139 QTAILQ_INIT(&g->reslist); 1140 QTAILQ_INIT(&g->cmdq); 1141 QTAILQ_INIT(&g->fenceq); 1142 } 1143 1144 static void virtio_gpu_reset(VirtIODevice *vdev) 1145 { 1146 VirtIOGPU *g = VIRTIO_GPU(vdev); 1147 struct virtio_gpu_simple_resource *res, *tmp; 1148 struct virtio_gpu_ctrl_command *cmd; 1149 1150 #ifdef CONFIG_VIRGL 1151 if (g->parent_obj.use_virgl_renderer) { 1152 virtio_gpu_virgl_reset(g); 1153 } 1154 #endif 1155 1156 QTAILQ_FOREACH_SAFE(res, &g->reslist, next, tmp) { 1157 virtio_gpu_resource_destroy(g, res); 1158 } 1159 1160 while (!QTAILQ_EMPTY(&g->cmdq)) { 1161 cmd = QTAILQ_FIRST(&g->cmdq); 1162 QTAILQ_REMOVE(&g->cmdq, cmd, next); 1163 g_free(cmd); 1164 } 1165 1166 while (!QTAILQ_EMPTY(&g->fenceq)) { 1167 cmd = QTAILQ_FIRST(&g->fenceq); 1168 QTAILQ_REMOVE(&g->fenceq, cmd, next); 1169 g->inflight--; 1170 g_free(cmd); 1171 } 1172 1173 #ifdef CONFIG_VIRGL 1174 if (g->parent_obj.use_virgl_renderer) { 1175 if (g->parent_obj.renderer_blocked) { 1176 g->renderer_reset = true; 1177 } else { 1178 virtio_gpu_virgl_reset(g); 1179 } 1180 g->parent_obj.use_virgl_renderer = false; 1181 } 1182 #endif 1183 1184 virtio_gpu_base_reset(VIRTIO_GPU_BASE(vdev)); 1185 } 1186 1187 static void 1188 virtio_gpu_get_config(VirtIODevice *vdev, uint8_t *config) 1189 { 1190 VirtIOGPUBase *g = VIRTIO_GPU_BASE(vdev); 1191 1192 memcpy(config, &g->virtio_config, sizeof(g->virtio_config)); 1193 } 1194 1195 static void 1196 virtio_gpu_set_config(VirtIODevice *vdev, const uint8_t *config) 1197 { 1198 VirtIOGPUBase *g = VIRTIO_GPU_BASE(vdev); 1199 const struct virtio_gpu_config *vgconfig = 1200 (const struct virtio_gpu_config *)config; 1201 1202 if (vgconfig->events_clear) { 1203 g->virtio_config.events_read &= ~vgconfig->events_clear; 1204 } 1205 } 1206 1207 /* 1208 * For historical reasons virtio_gpu does not adhere to virtio migration 1209 * scheme as described in doc/virtio-migration.txt, in a sense that no 1210 * save/load callback are provided to the core. Instead the device data 1211 * is saved/loaded after the core data. 1212 * 1213 * Because of this we need a special vmsd. 1214 */ 1215 static const VMStateDescription vmstate_virtio_gpu = { 1216 .name = "virtio-gpu", 1217 .minimum_version_id = VIRTIO_GPU_VM_VERSION, 1218 .version_id = VIRTIO_GPU_VM_VERSION, 1219 .fields = (VMStateField[]) { 1220 VMSTATE_VIRTIO_DEVICE /* core */, 1221 { 1222 .name = "virtio-gpu", 1223 .info = &(const VMStateInfo) { 1224 .name = "virtio-gpu", 1225 .get = virtio_gpu_load, 1226 .put = virtio_gpu_save, 1227 }, 1228 .flags = VMS_SINGLE, 1229 } /* device */, 1230 VMSTATE_END_OF_LIST() 1231 }, 1232 }; 1233 1234 static Property virtio_gpu_properties[] = { 1235 VIRTIO_GPU_BASE_PROPERTIES(VirtIOGPU, parent_obj.conf), 1236 DEFINE_PROP_SIZE("max_hostmem", VirtIOGPU, conf_max_hostmem, 1237 256 * MiB), 1238 #ifdef CONFIG_VIRGL 1239 DEFINE_PROP_BIT("virgl", VirtIOGPU, parent_obj.conf.flags, 1240 VIRTIO_GPU_FLAG_VIRGL_ENABLED, true), 1241 DEFINE_PROP_BIT("stats", VirtIOGPU, parent_obj.conf.flags, 1242 VIRTIO_GPU_FLAG_STATS_ENABLED, false), 1243 #endif 1244 DEFINE_PROP_END_OF_LIST(), 1245 }; 1246 1247 static void virtio_gpu_class_init(ObjectClass *klass, void *data) 1248 { 1249 DeviceClass *dc = DEVICE_CLASS(klass); 1250 VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass); 1251 VirtIOGPUBaseClass *vgc = VIRTIO_GPU_BASE_CLASS(klass); 1252 1253 vgc->gl_unblock = virtio_gpu_gl_unblock; 1254 vdc->realize = virtio_gpu_device_realize; 1255 vdc->reset = virtio_gpu_reset; 1256 vdc->get_config = virtio_gpu_get_config; 1257 vdc->set_config = virtio_gpu_set_config; 1258 1259 dc->vmsd = &vmstate_virtio_gpu; 1260 device_class_set_props(dc, virtio_gpu_properties); 1261 } 1262 1263 static const TypeInfo virtio_gpu_info = { 1264 .name = TYPE_VIRTIO_GPU, 1265 .parent = TYPE_VIRTIO_GPU_BASE, 1266 .instance_size = sizeof(VirtIOGPU), 1267 .class_init = virtio_gpu_class_init, 1268 }; 1269 1270 static void virtio_register_types(void) 1271 { 1272 type_register_static(&virtio_gpu_info); 1273 } 1274 1275 type_init(virtio_register_types) 1276