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267f6646 MAL |
1 | /* |
2 | * vhost-user GPU Device | |
3 | * | |
4 | * Copyright Red Hat, Inc. 2018 | |
5 | * | |
6 | * Authors: | |
7 | * Marc-André Lureau <marcandre.lureau@redhat.com> | |
8 | * | |
9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
10 | * See the COPYING file in the top-level directory. | |
11 | */ | |
12 | ||
13 | #include "qemu/osdep.h" | |
5feed38c | 14 | #include "qemu/error-report.h" |
9cbda7b3 | 15 | #include "qemu/sockets.h" |
a27bd6c7 | 16 | #include "hw/qdev-properties.h" |
267f6646 MAL |
17 | #include "hw/virtio/virtio-gpu.h" |
18 | #include "chardev/char-fe.h" | |
19 | #include "qapi/error.h" | |
20 | #include "migration/blocker.h" | |
21 | ||
267f6646 MAL |
22 | typedef enum VhostUserGpuRequest { |
23 | VHOST_USER_GPU_NONE = 0, | |
24 | VHOST_USER_GPU_GET_PROTOCOL_FEATURES, | |
25 | VHOST_USER_GPU_SET_PROTOCOL_FEATURES, | |
26 | VHOST_USER_GPU_GET_DISPLAY_INFO, | |
27 | VHOST_USER_GPU_CURSOR_POS, | |
28 | VHOST_USER_GPU_CURSOR_POS_HIDE, | |
29 | VHOST_USER_GPU_CURSOR_UPDATE, | |
30 | VHOST_USER_GPU_SCANOUT, | |
31 | VHOST_USER_GPU_UPDATE, | |
32 | VHOST_USER_GPU_DMABUF_SCANOUT, | |
33 | VHOST_USER_GPU_DMABUF_UPDATE, | |
34 | } VhostUserGpuRequest; | |
35 | ||
36 | typedef struct VhostUserGpuDisplayInfoReply { | |
37 | struct virtio_gpu_resp_display_info info; | |
38 | } VhostUserGpuDisplayInfoReply; | |
39 | ||
40 | typedef struct VhostUserGpuCursorPos { | |
41 | uint32_t scanout_id; | |
42 | uint32_t x; | |
43 | uint32_t y; | |
44 | } QEMU_PACKED VhostUserGpuCursorPos; | |
45 | ||
46 | typedef struct VhostUserGpuCursorUpdate { | |
47 | VhostUserGpuCursorPos pos; | |
48 | uint32_t hot_x; | |
49 | uint32_t hot_y; | |
50 | uint32_t data[64 * 64]; | |
51 | } QEMU_PACKED VhostUserGpuCursorUpdate; | |
52 | ||
53 | typedef struct VhostUserGpuScanout { | |
54 | uint32_t scanout_id; | |
55 | uint32_t width; | |
56 | uint32_t height; | |
57 | } QEMU_PACKED VhostUserGpuScanout; | |
58 | ||
59 | typedef struct VhostUserGpuUpdate { | |
60 | uint32_t scanout_id; | |
61 | uint32_t x; | |
62 | uint32_t y; | |
63 | uint32_t width; | |
64 | uint32_t height; | |
65 | uint8_t data[]; | |
66 | } QEMU_PACKED VhostUserGpuUpdate; | |
67 | ||
68 | typedef struct VhostUserGpuDMABUFScanout { | |
69 | uint32_t scanout_id; | |
70 | uint32_t x; | |
71 | uint32_t y; | |
72 | uint32_t width; | |
73 | uint32_t height; | |
74 | uint32_t fd_width; | |
75 | uint32_t fd_height; | |
76 | uint32_t fd_stride; | |
77 | uint32_t fd_flags; | |
78 | int fd_drm_fourcc; | |
79 | } QEMU_PACKED VhostUserGpuDMABUFScanout; | |
80 | ||
81 | typedef struct VhostUserGpuMsg { | |
82 | uint32_t request; /* VhostUserGpuRequest */ | |
83 | uint32_t flags; | |
84 | uint32_t size; /* the following payload size */ | |
85 | union { | |
86 | VhostUserGpuCursorPos cursor_pos; | |
87 | VhostUserGpuCursorUpdate cursor_update; | |
88 | VhostUserGpuScanout scanout; | |
89 | VhostUserGpuUpdate update; | |
90 | VhostUserGpuDMABUFScanout dmabuf_scanout; | |
91 | struct virtio_gpu_resp_display_info display_info; | |
92 | uint64_t u64; | |
93 | } payload; | |
94 | } QEMU_PACKED VhostUserGpuMsg; | |
95 | ||
96 | static VhostUserGpuMsg m __attribute__ ((unused)); | |
97 | #define VHOST_USER_GPU_HDR_SIZE \ | |
98 | (sizeof(m.request) + sizeof(m.size) + sizeof(m.flags)) | |
99 | ||
100 | #define VHOST_USER_GPU_MSG_FLAG_REPLY 0x4 | |
101 | ||
102 | static void vhost_user_gpu_update_blocked(VhostUserGPU *g, bool blocked); | |
103 | ||
104 | static void | |
105 | vhost_user_gpu_handle_cursor(VhostUserGPU *g, VhostUserGpuMsg *msg) | |
106 | { | |
107 | VhostUserGpuCursorPos *pos = &msg->payload.cursor_pos; | |
108 | struct virtio_gpu_scanout *s; | |
109 | ||
110 | if (pos->scanout_id >= g->parent_obj.conf.max_outputs) { | |
111 | return; | |
112 | } | |
113 | s = &g->parent_obj.scanout[pos->scanout_id]; | |
114 | ||
115 | if (msg->request == VHOST_USER_GPU_CURSOR_UPDATE) { | |
116 | VhostUserGpuCursorUpdate *up = &msg->payload.cursor_update; | |
117 | if (!s->current_cursor) { | |
118 | s->current_cursor = cursor_alloc(64, 64); | |
119 | } | |
120 | ||
121 | s->current_cursor->hot_x = up->hot_x; | |
122 | s->current_cursor->hot_y = up->hot_y; | |
123 | ||
124 | memcpy(s->current_cursor->data, up->data, | |
125 | 64 * 64 * sizeof(uint32_t)); | |
126 | ||
127 | dpy_cursor_define(s->con, s->current_cursor); | |
128 | } | |
129 | ||
130 | dpy_mouse_set(s->con, pos->x, pos->y, | |
131 | msg->request != VHOST_USER_GPU_CURSOR_POS_HIDE); | |
132 | } | |
133 | ||
134 | static void | |
135 | vhost_user_gpu_send_msg(VhostUserGPU *g, const VhostUserGpuMsg *msg) | |
136 | { | |
137 | qemu_chr_fe_write(&g->vhost_chr, (uint8_t *)msg, | |
138 | VHOST_USER_GPU_HDR_SIZE + msg->size); | |
139 | } | |
140 | ||
141 | static void | |
142 | vhost_user_gpu_unblock(VhostUserGPU *g) | |
143 | { | |
144 | VhostUserGpuMsg msg = { | |
145 | .request = VHOST_USER_GPU_DMABUF_UPDATE, | |
146 | .flags = VHOST_USER_GPU_MSG_FLAG_REPLY, | |
147 | }; | |
148 | ||
149 | vhost_user_gpu_send_msg(g, &msg); | |
150 | } | |
151 | ||
152 | static void | |
153 | vhost_user_gpu_handle_display(VhostUserGPU *g, VhostUserGpuMsg *msg) | |
154 | { | |
155 | QemuConsole *con = NULL; | |
156 | struct virtio_gpu_scanout *s; | |
157 | ||
158 | switch (msg->request) { | |
159 | case VHOST_USER_GPU_GET_PROTOCOL_FEATURES: { | |
160 | VhostUserGpuMsg reply = { | |
161 | .request = msg->request, | |
162 | .flags = VHOST_USER_GPU_MSG_FLAG_REPLY, | |
163 | .size = sizeof(uint64_t), | |
164 | }; | |
165 | ||
166 | vhost_user_gpu_send_msg(g, &reply); | |
167 | break; | |
168 | } | |
169 | case VHOST_USER_GPU_SET_PROTOCOL_FEATURES: { | |
170 | break; | |
171 | } | |
172 | case VHOST_USER_GPU_GET_DISPLAY_INFO: { | |
173 | struct virtio_gpu_resp_display_info display_info = { {} }; | |
174 | VhostUserGpuMsg reply = { | |
175 | .request = msg->request, | |
176 | .flags = VHOST_USER_GPU_MSG_FLAG_REPLY, | |
177 | .size = sizeof(struct virtio_gpu_resp_display_info), | |
178 | }; | |
179 | ||
180 | display_info.hdr.type = VIRTIO_GPU_RESP_OK_DISPLAY_INFO; | |
181 | virtio_gpu_base_fill_display_info(VIRTIO_GPU_BASE(g), &display_info); | |
182 | memcpy(&reply.payload.display_info, &display_info, | |
183 | sizeof(display_info)); | |
184 | vhost_user_gpu_send_msg(g, &reply); | |
185 | break; | |
186 | } | |
187 | case VHOST_USER_GPU_SCANOUT: { | |
188 | VhostUserGpuScanout *m = &msg->payload.scanout; | |
189 | ||
190 | if (m->scanout_id >= g->parent_obj.conf.max_outputs) { | |
191 | return; | |
192 | } | |
193 | ||
194 | g->parent_obj.enable = 1; | |
195 | s = &g->parent_obj.scanout[m->scanout_id]; | |
196 | con = s->con; | |
197 | ||
ed8f3fe6 AO |
198 | if (m->width == 0) { |
199 | dpy_gfx_replace_surface(con, NULL); | |
267f6646 MAL |
200 | } else { |
201 | s->ds = qemu_create_displaysurface(m->width, m->height); | |
202 | /* replace surface on next update */ | |
203 | } | |
204 | ||
205 | break; | |
206 | } | |
207 | case VHOST_USER_GPU_DMABUF_SCANOUT: { | |
208 | VhostUserGpuDMABUFScanout *m = &msg->payload.dmabuf_scanout; | |
209 | int fd = qemu_chr_fe_get_msgfd(&g->vhost_chr); | |
210 | QemuDmaBuf *dmabuf; | |
211 | ||
212 | if (m->scanout_id >= g->parent_obj.conf.max_outputs) { | |
213 | error_report("invalid scanout: %d", m->scanout_id); | |
214 | if (fd >= 0) { | |
215 | close(fd); | |
216 | } | |
217 | break; | |
218 | } | |
219 | ||
220 | g->parent_obj.enable = 1; | |
221 | con = g->parent_obj.scanout[m->scanout_id].con; | |
222 | dmabuf = &g->dmabuf[m->scanout_id]; | |
223 | if (dmabuf->fd >= 0) { | |
224 | close(dmabuf->fd); | |
225 | dmabuf->fd = -1; | |
226 | } | |
267f6646 MAL |
227 | dpy_gl_release_dmabuf(con, dmabuf); |
228 | if (fd == -1) { | |
229 | dpy_gl_scanout_disable(con); | |
230 | break; | |
231 | } | |
232 | *dmabuf = (QemuDmaBuf) { | |
233 | .fd = fd, | |
234 | .width = m->fd_width, | |
235 | .height = m->fd_height, | |
236 | .stride = m->fd_stride, | |
237 | .fourcc = m->fd_drm_fourcc, | |
238 | .y0_top = m->fd_flags & VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP, | |
239 | }; | |
240 | dpy_gl_scanout_dmabuf(con, dmabuf); | |
241 | break; | |
242 | } | |
243 | case VHOST_USER_GPU_DMABUF_UPDATE: { | |
244 | VhostUserGpuUpdate *m = &msg->payload.update; | |
245 | ||
246 | if (m->scanout_id >= g->parent_obj.conf.max_outputs || | |
247 | !g->parent_obj.scanout[m->scanout_id].con) { | |
248 | error_report("invalid scanout update: %d", m->scanout_id); | |
249 | vhost_user_gpu_unblock(g); | |
250 | break; | |
251 | } | |
252 | ||
253 | con = g->parent_obj.scanout[m->scanout_id].con; | |
254 | if (!console_has_gl(con)) { | |
255 | error_report("console doesn't support GL!"); | |
256 | vhost_user_gpu_unblock(g); | |
257 | break; | |
258 | } | |
267f6646 | 259 | g->backend_blocked = true; |
f6413cbf | 260 | dpy_gl_update(con, m->x, m->y, m->width, m->height); |
267f6646 MAL |
261 | break; |
262 | } | |
263 | case VHOST_USER_GPU_UPDATE: { | |
264 | VhostUserGpuUpdate *m = &msg->payload.update; | |
265 | ||
266 | if (m->scanout_id >= g->parent_obj.conf.max_outputs) { | |
267 | break; | |
268 | } | |
269 | s = &g->parent_obj.scanout[m->scanout_id]; | |
270 | con = s->con; | |
271 | pixman_image_t *image = | |
272 | pixman_image_create_bits(PIXMAN_x8r8g8b8, | |
273 | m->width, | |
274 | m->height, | |
275 | (uint32_t *)m->data, | |
276 | m->width * 4); | |
277 | ||
278 | pixman_image_composite(PIXMAN_OP_SRC, | |
279 | image, NULL, s->ds->image, | |
280 | 0, 0, 0, 0, m->x, m->y, m->width, m->height); | |
281 | ||
282 | pixman_image_unref(image); | |
283 | if (qemu_console_surface(con) != s->ds) { | |
284 | dpy_gfx_replace_surface(con, s->ds); | |
285 | } else { | |
286 | dpy_gfx_update(con, m->x, m->y, m->width, m->height); | |
287 | } | |
288 | break; | |
289 | } | |
290 | default: | |
291 | g_warning("unhandled message %d %d", msg->request, msg->size); | |
292 | } | |
293 | ||
294 | if (con && qemu_console_is_gl_blocked(con)) { | |
295 | vhost_user_gpu_update_blocked(g, true); | |
296 | } | |
297 | } | |
298 | ||
299 | static void | |
300 | vhost_user_gpu_chr_read(void *opaque) | |
301 | { | |
302 | VhostUserGPU *g = opaque; | |
303 | VhostUserGpuMsg *msg = NULL; | |
304 | VhostUserGpuRequest request; | |
305 | uint32_t size, flags; | |
306 | int r; | |
307 | ||
308 | r = qemu_chr_fe_read_all(&g->vhost_chr, | |
309 | (uint8_t *)&request, sizeof(uint32_t)); | |
310 | if (r != sizeof(uint32_t)) { | |
311 | error_report("failed to read msg header: %d, %d", r, errno); | |
312 | goto end; | |
313 | } | |
314 | ||
315 | r = qemu_chr_fe_read_all(&g->vhost_chr, | |
316 | (uint8_t *)&flags, sizeof(uint32_t)); | |
317 | if (r != sizeof(uint32_t)) { | |
318 | error_report("failed to read msg flags"); | |
319 | goto end; | |
320 | } | |
321 | ||
322 | r = qemu_chr_fe_read_all(&g->vhost_chr, | |
323 | (uint8_t *)&size, sizeof(uint32_t)); | |
324 | if (r != sizeof(uint32_t)) { | |
325 | error_report("failed to read msg size"); | |
326 | goto end; | |
327 | } | |
328 | ||
329 | msg = g_malloc(VHOST_USER_GPU_HDR_SIZE + size); | |
267f6646 MAL |
330 | |
331 | r = qemu_chr_fe_read_all(&g->vhost_chr, | |
332 | (uint8_t *)&msg->payload, size); | |
333 | if (r != size) { | |
334 | error_report("failed to read msg payload %d != %d", r, size); | |
335 | goto end; | |
336 | } | |
337 | ||
338 | msg->request = request; | |
339 | msg->flags = size; | |
340 | msg->size = size; | |
341 | ||
342 | if (request == VHOST_USER_GPU_CURSOR_UPDATE || | |
343 | request == VHOST_USER_GPU_CURSOR_POS || | |
344 | request == VHOST_USER_GPU_CURSOR_POS_HIDE) { | |
345 | vhost_user_gpu_handle_cursor(g, msg); | |
346 | } else { | |
347 | vhost_user_gpu_handle_display(g, msg); | |
348 | } | |
349 | ||
350 | end: | |
351 | g_free(msg); | |
352 | } | |
353 | ||
354 | static void | |
355 | vhost_user_gpu_update_blocked(VhostUserGPU *g, bool blocked) | |
356 | { | |
357 | qemu_set_fd_handler(g->vhost_gpu_fd, | |
358 | blocked ? NULL : vhost_user_gpu_chr_read, NULL, g); | |
359 | } | |
360 | ||
361 | static void | |
3cddb8b9 | 362 | vhost_user_gpu_gl_flushed(VirtIOGPUBase *b) |
267f6646 MAL |
363 | { |
364 | VhostUserGPU *g = VHOST_USER_GPU(b); | |
365 | ||
366 | if (g->backend_blocked) { | |
367 | vhost_user_gpu_unblock(VHOST_USER_GPU(g)); | |
368 | g->backend_blocked = false; | |
369 | } | |
370 | ||
371 | vhost_user_gpu_update_blocked(VHOST_USER_GPU(g), false); | |
372 | } | |
373 | ||
374 | static bool | |
375 | vhost_user_gpu_do_set_socket(VhostUserGPU *g, Error **errp) | |
376 | { | |
377 | Chardev *chr; | |
378 | int sv[2]; | |
379 | ||
9cbda7b3 | 380 | if (qemu_socketpair(PF_UNIX, SOCK_STREAM, 0, sv) == -1) { |
267f6646 MAL |
381 | error_setg_errno(errp, errno, "socketpair() failed"); |
382 | return false; | |
383 | } | |
384 | ||
385 | chr = CHARDEV(object_new(TYPE_CHARDEV_SOCKET)); | |
386 | if (!chr || qemu_chr_add_client(chr, sv[0]) == -1) { | |
387 | error_setg(errp, "Failed to make socket chardev"); | |
388 | goto err; | |
389 | } | |
390 | if (!qemu_chr_fe_init(&g->vhost_chr, chr, errp)) { | |
391 | goto err; | |
392 | } | |
393 | if (vhost_user_gpu_set_socket(&g->vhost->dev, sv[1]) < 0) { | |
394 | error_setg(errp, "Failed to set vhost-user-gpu socket"); | |
395 | qemu_chr_fe_deinit(&g->vhost_chr, false); | |
396 | goto err; | |
397 | } | |
398 | ||
399 | g->vhost_gpu_fd = sv[0]; | |
400 | vhost_user_gpu_update_blocked(g, false); | |
401 | close(sv[1]); | |
402 | return true; | |
403 | ||
404 | err: | |
405 | close(sv[0]); | |
406 | close(sv[1]); | |
407 | if (chr) { | |
408 | object_unref(OBJECT(chr)); | |
409 | } | |
410 | return false; | |
411 | } | |
412 | ||
413 | static void | |
414 | vhost_user_gpu_get_config(VirtIODevice *vdev, uint8_t *config_data) | |
415 | { | |
416 | VhostUserGPU *g = VHOST_USER_GPU(vdev); | |
417 | VirtIOGPUBase *b = VIRTIO_GPU_BASE(vdev); | |
418 | struct virtio_gpu_config *vgconfig = | |
419 | (struct virtio_gpu_config *)config_data; | |
50de5138 | 420 | Error *local_err = NULL; |
267f6646 MAL |
421 | int ret; |
422 | ||
423 | memset(config_data, 0, sizeof(struct virtio_gpu_config)); | |
424 | ||
425 | ret = vhost_dev_get_config(&g->vhost->dev, | |
50de5138 KW |
426 | config_data, sizeof(struct virtio_gpu_config), |
427 | &local_err); | |
267f6646 | 428 | if (ret) { |
50de5138 | 429 | error_report_err(local_err); |
267f6646 MAL |
430 | return; |
431 | } | |
432 | ||
433 | /* those fields are managed by qemu */ | |
434 | vgconfig->num_scanouts = b->virtio_config.num_scanouts; | |
435 | vgconfig->events_read = b->virtio_config.events_read; | |
436 | vgconfig->events_clear = b->virtio_config.events_clear; | |
437 | } | |
438 | ||
439 | static void | |
440 | vhost_user_gpu_set_config(VirtIODevice *vdev, | |
441 | const uint8_t *config_data) | |
442 | { | |
443 | VhostUserGPU *g = VHOST_USER_GPU(vdev); | |
444 | VirtIOGPUBase *b = VIRTIO_GPU_BASE(vdev); | |
445 | const struct virtio_gpu_config *vgconfig = | |
446 | (const struct virtio_gpu_config *)config_data; | |
447 | int ret; | |
448 | ||
449 | if (vgconfig->events_clear) { | |
450 | b->virtio_config.events_read &= ~vgconfig->events_clear; | |
451 | } | |
452 | ||
453 | ret = vhost_dev_set_config(&g->vhost->dev, config_data, | |
454 | 0, sizeof(struct virtio_gpu_config), | |
455 | VHOST_SET_CONFIG_TYPE_MASTER); | |
456 | if (ret) { | |
457 | error_report("vhost-user-gpu: set device config space failed"); | |
458 | return; | |
459 | } | |
460 | } | |
461 | ||
462 | static void | |
463 | vhost_user_gpu_set_status(VirtIODevice *vdev, uint8_t val) | |
464 | { | |
465 | VhostUserGPU *g = VHOST_USER_GPU(vdev); | |
466 | Error *err = NULL; | |
467 | ||
468 | if (val & VIRTIO_CONFIG_S_DRIVER_OK && vdev->vm_running) { | |
469 | if (!vhost_user_gpu_do_set_socket(g, &err)) { | |
470 | error_report_err(err); | |
471 | return; | |
472 | } | |
473 | vhost_user_backend_start(g->vhost); | |
474 | } else { | |
475 | /* unblock any wait and stop processing */ | |
476 | if (g->vhost_gpu_fd != -1) { | |
477 | vhost_user_gpu_update_blocked(g, true); | |
478 | qemu_chr_fe_deinit(&g->vhost_chr, true); | |
479 | g->vhost_gpu_fd = -1; | |
480 | } | |
481 | vhost_user_backend_stop(g->vhost); | |
482 | } | |
483 | } | |
484 | ||
485 | static bool | |
486 | vhost_user_gpu_guest_notifier_pending(VirtIODevice *vdev, int idx) | |
487 | { | |
488 | VhostUserGPU *g = VHOST_USER_GPU(vdev); | |
489 | ||
544f0278 CL |
490 | /* |
491 | * Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1 | |
492 | * as the Marco of configure interrupt's IDX, If this driver does not | |
493 | * support, the function will return | |
494 | */ | |
495 | ||
496 | if (idx == VIRTIO_CONFIG_IRQ_IDX) { | |
497 | return false; | |
498 | } | |
267f6646 MAL |
499 | return vhost_virtqueue_pending(&g->vhost->dev, idx); |
500 | } | |
501 | ||
502 | static void | |
503 | vhost_user_gpu_guest_notifier_mask(VirtIODevice *vdev, int idx, bool mask) | |
504 | { | |
505 | VhostUserGPU *g = VHOST_USER_GPU(vdev); | |
506 | ||
544f0278 CL |
507 | /* |
508 | * Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1 | |
509 | * as the Marco of configure interrupt's IDX, If this driver does not | |
510 | * support, the function will return | |
511 | */ | |
512 | ||
513 | if (idx == VIRTIO_CONFIG_IRQ_IDX) { | |
514 | return; | |
515 | } | |
267f6646 MAL |
516 | vhost_virtqueue_mask(&g->vhost->dev, vdev, idx, mask); |
517 | } | |
518 | ||
519 | static void | |
520 | vhost_user_gpu_instance_init(Object *obj) | |
521 | { | |
522 | VhostUserGPU *g = VHOST_USER_GPU(obj); | |
523 | ||
524 | g->vhost = VHOST_USER_BACKEND(object_new(TYPE_VHOST_USER_BACKEND)); | |
525 | object_property_add_alias(obj, "chardev", | |
d2623129 | 526 | OBJECT(g->vhost), "chardev"); |
267f6646 MAL |
527 | } |
528 | ||
529 | static void | |
530 | vhost_user_gpu_instance_finalize(Object *obj) | |
531 | { | |
532 | VhostUserGPU *g = VHOST_USER_GPU(obj); | |
533 | ||
534 | object_unref(OBJECT(g->vhost)); | |
535 | } | |
536 | ||
537 | static void | |
538 | vhost_user_gpu_reset(VirtIODevice *vdev) | |
539 | { | |
540 | VhostUserGPU *g = VHOST_USER_GPU(vdev); | |
541 | ||
542 | virtio_gpu_base_reset(VIRTIO_GPU_BASE(vdev)); | |
543 | ||
544 | vhost_user_backend_stop(g->vhost); | |
545 | } | |
546 | ||
547 | static int | |
548 | vhost_user_gpu_config_change(struct vhost_dev *dev) | |
549 | { | |
550 | error_report("vhost-user-gpu: unhandled backend config change"); | |
551 | return -1; | |
552 | } | |
553 | ||
554 | static const VhostDevConfigOps config_ops = { | |
555 | .vhost_dev_config_notifier = vhost_user_gpu_config_change, | |
556 | }; | |
557 | ||
558 | static void | |
559 | vhost_user_gpu_device_realize(DeviceState *qdev, Error **errp) | |
560 | { | |
561 | VhostUserGPU *g = VHOST_USER_GPU(qdev); | |
562 | VirtIODevice *vdev = VIRTIO_DEVICE(g); | |
563 | ||
564 | vhost_dev_set_config_notifier(&g->vhost->dev, &config_ops); | |
565 | if (vhost_user_backend_dev_init(g->vhost, vdev, 2, errp) < 0) { | |
566 | return; | |
567 | } | |
568 | ||
ff64d44f MAL |
569 | /* existing backend may send DMABUF, so let's add that requirement */ |
570 | g->parent_obj.conf.flags |= 1 << VIRTIO_GPU_FLAG_DMABUF_ENABLED; | |
267f6646 MAL |
571 | if (virtio_has_feature(g->vhost->dev.features, VIRTIO_GPU_F_VIRGL)) { |
572 | g->parent_obj.conf.flags |= 1 << VIRTIO_GPU_FLAG_VIRGL_ENABLED; | |
573 | } | |
326a51f3 MAL |
574 | if (virtio_has_feature(g->vhost->dev.features, VIRTIO_GPU_F_EDID)) { |
575 | g->parent_obj.conf.flags |= 1 << VIRTIO_GPU_FLAG_EDID_ENABLED; | |
576 | } else { | |
577 | error_report("EDID requested but the backend doesn't support it."); | |
578 | g->parent_obj.conf.flags &= ~(1 << VIRTIO_GPU_FLAG_EDID_ENABLED); | |
579 | } | |
267f6646 MAL |
580 | |
581 | if (!virtio_gpu_base_device_realize(qdev, NULL, NULL, errp)) { | |
582 | return; | |
583 | } | |
584 | ||
585 | g->vhost_gpu_fd = -1; | |
586 | } | |
587 | ||
c255488d JP |
588 | static struct vhost_dev *vhost_user_gpu_get_vhost(VirtIODevice *vdev) |
589 | { | |
590 | VhostUserGPU *g = VHOST_USER_GPU(vdev); | |
591 | return &g->vhost->dev; | |
592 | } | |
593 | ||
267f6646 MAL |
594 | static Property vhost_user_gpu_properties[] = { |
595 | VIRTIO_GPU_BASE_PROPERTIES(VhostUserGPU, parent_obj.conf), | |
596 | DEFINE_PROP_END_OF_LIST(), | |
597 | }; | |
598 | ||
599 | static void | |
600 | vhost_user_gpu_class_init(ObjectClass *klass, void *data) | |
601 | { | |
602 | DeviceClass *dc = DEVICE_CLASS(klass); | |
603 | VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass); | |
604 | VirtIOGPUBaseClass *vgc = VIRTIO_GPU_BASE_CLASS(klass); | |
605 | ||
3cddb8b9 | 606 | vgc->gl_flushed = vhost_user_gpu_gl_flushed; |
267f6646 MAL |
607 | |
608 | vdc->realize = vhost_user_gpu_device_realize; | |
609 | vdc->reset = vhost_user_gpu_reset; | |
610 | vdc->set_status = vhost_user_gpu_set_status; | |
611 | vdc->guest_notifier_mask = vhost_user_gpu_guest_notifier_mask; | |
612 | vdc->guest_notifier_pending = vhost_user_gpu_guest_notifier_pending; | |
613 | vdc->get_config = vhost_user_gpu_get_config; | |
614 | vdc->set_config = vhost_user_gpu_set_config; | |
c255488d | 615 | vdc->get_vhost = vhost_user_gpu_get_vhost; |
267f6646 | 616 | |
4f67d30b | 617 | device_class_set_props(dc, vhost_user_gpu_properties); |
267f6646 MAL |
618 | } |
619 | ||
620 | static const TypeInfo vhost_user_gpu_info = { | |
621 | .name = TYPE_VHOST_USER_GPU, | |
622 | .parent = TYPE_VIRTIO_GPU_BASE, | |
623 | .instance_size = sizeof(VhostUserGPU), | |
624 | .instance_init = vhost_user_gpu_instance_init, | |
625 | .instance_finalize = vhost_user_gpu_instance_finalize, | |
626 | .class_init = vhost_user_gpu_class_init, | |
627 | }; | |
561d0f45 | 628 | module_obj(TYPE_VHOST_USER_GPU); |
24ce7aa7 | 629 | module_kconfig(VHOST_USER_GPU); |
267f6646 MAL |
630 | |
631 | static void vhost_user_gpu_register_types(void) | |
632 | { | |
633 | type_register_static(&vhost_user_gpu_info); | |
634 | } | |
635 | ||
636 | type_init(vhost_user_gpu_register_types) |