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Commit | Line | Data |
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e7151f83 AL |
1 | /* |
2 | * xen paravirt framebuffer backend | |
3 | * | |
4 | * Copyright IBM, Corp. 2005-2006 | |
5 | * Copyright Red Hat, Inc. 2006-2008 | |
6 | * | |
7 | * Authors: | |
8 | * Anthony Liguori <aliguori@us.ibm.com>, | |
9 | * Markus Armbruster <armbru@redhat.com>, | |
10 | * Daniel P. Berrange <berrange@redhat.com>, | |
11 | * Pat Campbell <plc@novell.com>, | |
12 | * Gerd Hoffmann <kraxel@redhat.com> | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; under version 2 of the License. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License along | |
8167ee88 | 24 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
e7151f83 AL |
25 | */ |
26 | ||
21cbfe5f | 27 | #include "qemu/osdep.h" |
e7151f83 | 28 | |
83c9f4ca | 29 | #include "hw/hw.h" |
28ecbaee | 30 | #include "ui/console.h" |
0d09e41a | 31 | #include "hw/xen/xen_backend.h" |
e7151f83 | 32 | |
b41f6719 AP |
33 | #include <xen/event_channel.h> |
34 | #include <xen/io/fbif.h> | |
35 | #include <xen/io/kbdif.h> | |
36 | #include <xen/io/protocols.h> | |
37 | ||
91043dad DK |
38 | #include "trace.h" |
39 | ||
e7151f83 AL |
40 | #ifndef BTN_LEFT |
41 | #define BTN_LEFT 0x110 /* from <linux/input.h> */ | |
42 | #endif | |
43 | ||
44 | /* -------------------------------------------------------------------- */ | |
45 | ||
46 | struct common { | |
47 | struct XenDevice xendev; /* must be first */ | |
48 | void *page; | |
c78f7137 | 49 | QemuConsole *con; |
e7151f83 AL |
50 | }; |
51 | ||
52 | struct XenInput { | |
53 | struct common c; | |
54 | int abs_pointer_wanted; /* Whether guest supports absolute pointer */ | |
55 | int button_state; /* Last seen pointer button state */ | |
56 | int extended; | |
57 | QEMUPutMouseEntry *qmouse; | |
58 | }; | |
59 | ||
60 | #define UP_QUEUE 8 | |
61 | ||
62 | struct XenFB { | |
63 | struct common c; | |
64 | size_t fb_len; | |
65 | int row_stride; | |
66 | int depth; | |
67 | int width; | |
68 | int height; | |
69 | int offset; | |
70 | void *pixels; | |
71 | int fbpages; | |
72 | int feature_update; | |
e7151f83 AL |
73 | int bug_trigger; |
74 | int have_console; | |
75 | int do_resize; | |
76 | ||
77 | struct { | |
78 | int x,y,w,h; | |
79 | } up_rects[UP_QUEUE]; | |
80 | int up_count; | |
81 | int up_fullscreen; | |
82 | }; | |
83 | ||
84 | /* -------------------------------------------------------------------- */ | |
85 | ||
86 | static int common_bind(struct common *c) | |
87 | { | |
9ed257d1 IC |
88 | uint64_t val; |
89 | xen_pfn_t mfn; | |
e7151f83 | 90 | |
9ed257d1 | 91 | if (xenstore_read_fe_uint64(&c->xendev, "page-ref", &val) == -1) |
c22e91b1 | 92 | return -1; |
9ed257d1 IC |
93 | mfn = (xen_pfn_t)val; |
94 | assert(val == mfn); | |
643f5932 | 95 | |
e7151f83 | 96 | if (xenstore_read_fe_int(&c->xendev, "event-channel", &c->xendev.remote_port) == -1) |
c22e91b1 | 97 | return -1; |
e7151f83 | 98 | |
e0cb42ae IC |
99 | c->page = xenforeignmemory_map(xen_fmem, c->xendev.dom, |
100 | PROT_READ | PROT_WRITE, 1, &mfn, NULL); | |
e7151f83 | 101 | if (c->page == NULL) |
c22e91b1 | 102 | return -1; |
e7151f83 AL |
103 | |
104 | xen_be_bind_evtchn(&c->xendev); | |
96c77dba | 105 | xen_pv_printf(&c->xendev, 1, |
c22e91b1 EC |
106 | "ring mfn %"PRI_xen_pfn", remote-port %d, local-port %d\n", |
107 | mfn, c->xendev.remote_port, c->xendev.local_port); | |
e7151f83 AL |
108 | |
109 | return 0; | |
110 | } | |
111 | ||
112 | static void common_unbind(struct common *c) | |
113 | { | |
65807f4b | 114 | xen_pv_unbind_evtchn(&c->xendev); |
e7151f83 | 115 | if (c->page) { |
e0cb42ae | 116 | xenforeignmemory_unmap(xen_fmem, c->page, 1); |
e7151f83 AL |
117 | c->page = NULL; |
118 | } | |
119 | } | |
120 | ||
121 | /* -------------------------------------------------------------------- */ | |
122 | ||
123 | #if 0 | |
124 | /* | |
125 | * These two tables are not needed any more, but left in here | |
126 | * intentionally as documentation, to show how scancode2linux[] | |
127 | * was generated. | |
128 | * | |
129 | * Tables to map from scancode to Linux input layer keycode. | |
130 | * Scancodes are hardware-specific. These maps assumes a | |
131 | * standard AT or PS/2 keyboard which is what QEMU feeds us. | |
132 | */ | |
133 | const unsigned char atkbd_set2_keycode[512] = { | |
134 | ||
135 | 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117, | |
136 | 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0, | |
137 | 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183, | |
138 | 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185, | |
139 | 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0, | |
140 | 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85, | |
141 | 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0, | |
142 | 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99, | |
143 | ||
144 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
145 | 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125, | |
146 | 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127, | |
147 | 159, 0,115, 0,164, 0, 0,116,158, 0,150,166, 0, 0, 0,142, | |
148 | 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0, | |
149 | 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0, | |
150 | 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112, | |
151 | 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0, | |
152 | ||
153 | }; | |
154 | ||
155 | const unsigned char atkbd_unxlate_table[128] = { | |
156 | ||
157 | 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13, | |
158 | 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27, | |
159 | 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42, | |
160 | 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3, | |
161 | 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105, | |
162 | 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63, | |
163 | 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111, | |
164 | 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110 | |
165 | ||
166 | }; | |
167 | #endif | |
168 | ||
169 | /* | |
170 | * for (i = 0; i < 128; i++) { | |
171 | * scancode2linux[i] = atkbd_set2_keycode[atkbd_unxlate_table[i]]; | |
172 | * scancode2linux[i | 0x80] = atkbd_set2_keycode[atkbd_unxlate_table[i] | 0x80]; | |
173 | * } | |
174 | */ | |
175 | static const unsigned char scancode2linux[512] = { | |
176 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, | |
177 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, | |
178 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, | |
179 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, | |
180 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | |
181 | 80, 81, 82, 83, 99, 0, 86, 87, 88,117, 0, 0, 95,183,184,185, | |
182 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
183 | 93, 0, 0, 89, 0, 0, 85, 91, 90, 92, 0, 94, 0,124,121, 0, | |
184 | ||
185 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
186 | 165, 0, 0, 0, 0, 0, 0, 0, 0,163, 0, 0, 96, 97, 0, 0, | |
187 | 113,140,164, 0,166, 0, 0, 0, 0, 0,255, 0, 0, 0,114, 0, | |
188 | 115, 0,150, 0, 0, 98,255, 99,100, 0, 0, 0, 0, 0, 0, 0, | |
189 | 0, 0, 0, 0, 0,119,119,102,103,104, 0,105,112,106,118,107, | |
190 | 108,109,110,111, 0, 0, 0, 0, 0, 0, 0,125,126,127,116,142, | |
191 | 0, 0, 0,143, 0,217,156,173,128,159,158,157,155,226, 0,112, | |
192 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
193 | }; | |
194 | ||
195 | /* Send an event to the keyboard frontend driver */ | |
196 | static int xenfb_kbd_event(struct XenInput *xenfb, | |
197 | union xenkbd_in_event *event) | |
198 | { | |
199 | struct xenkbd_page *page = xenfb->c.page; | |
200 | uint32_t prod; | |
201 | ||
202 | if (xenfb->c.xendev.be_state != XenbusStateConnected) | |
203 | return 0; | |
204 | if (!page) | |
205 | return 0; | |
206 | ||
207 | prod = page->in_prod; | |
208 | if (prod - page->in_cons == XENKBD_IN_RING_LEN) { | |
209 | errno = EAGAIN; | |
210 | return -1; | |
211 | } | |
212 | ||
213 | xen_mb(); /* ensure ring space available */ | |
214 | XENKBD_IN_RING_REF(page, prod) = *event; | |
215 | xen_wmb(); /* ensure ring contents visible */ | |
216 | page->in_prod = prod + 1; | |
ba18fa2a | 217 | return xen_pv_send_notify(&xenfb->c.xendev); |
e7151f83 AL |
218 | } |
219 | ||
220 | /* Send a keyboard (or mouse button) event */ | |
221 | static int xenfb_send_key(struct XenInput *xenfb, bool down, int keycode) | |
222 | { | |
223 | union xenkbd_in_event event; | |
224 | ||
225 | memset(&event, 0, XENKBD_IN_EVENT_SIZE); | |
226 | event.type = XENKBD_TYPE_KEY; | |
227 | event.key.pressed = down ? 1 : 0; | |
228 | event.key.keycode = keycode; | |
229 | ||
230 | return xenfb_kbd_event(xenfb, &event); | |
231 | } | |
232 | ||
233 | /* Send a relative mouse movement event */ | |
234 | static int xenfb_send_motion(struct XenInput *xenfb, | |
235 | int rel_x, int rel_y, int rel_z) | |
236 | { | |
237 | union xenkbd_in_event event; | |
238 | ||
239 | memset(&event, 0, XENKBD_IN_EVENT_SIZE); | |
240 | event.type = XENKBD_TYPE_MOTION; | |
241 | event.motion.rel_x = rel_x; | |
242 | event.motion.rel_y = rel_y; | |
e7151f83 | 243 | event.motion.rel_z = rel_z; |
e7151f83 AL |
244 | |
245 | return xenfb_kbd_event(xenfb, &event); | |
246 | } | |
247 | ||
248 | /* Send an absolute mouse movement event */ | |
249 | static int xenfb_send_position(struct XenInput *xenfb, | |
250 | int abs_x, int abs_y, int z) | |
251 | { | |
252 | union xenkbd_in_event event; | |
253 | ||
254 | memset(&event, 0, XENKBD_IN_EVENT_SIZE); | |
255 | event.type = XENKBD_TYPE_POS; | |
256 | event.pos.abs_x = abs_x; | |
257 | event.pos.abs_y = abs_y; | |
e7151f83 | 258 | event.pos.rel_z = z; |
e7151f83 AL |
259 | |
260 | return xenfb_kbd_event(xenfb, &event); | |
261 | } | |
262 | ||
263 | /* | |
264 | * Send a key event from the client to the guest OS | |
265 | * QEMU gives us a raw scancode from an AT / PS/2 style keyboard. | |
266 | * We have to turn this into a Linux Input layer keycode. | |
267 | * | |
268 | * Extra complexity from the fact that with extended scancodes | |
269 | * (like those produced by arrow keys) this method gets called | |
270 | * twice, but we only want to send a single event. So we have to | |
271 | * track the '0xe0' scancode state & collapse the extended keys | |
272 | * as needed. | |
273 | * | |
274 | * Wish we could just send scancodes straight to the guest which | |
275 | * already has code for dealing with this... | |
276 | */ | |
277 | static void xenfb_key_event(void *opaque, int scancode) | |
278 | { | |
279 | struct XenInput *xenfb = opaque; | |
280 | int down = 1; | |
281 | ||
282 | if (scancode == 0xe0) { | |
283 | xenfb->extended = 1; | |
284 | return; | |
285 | } else if (scancode & 0x80) { | |
286 | scancode &= 0x7f; | |
287 | down = 0; | |
288 | } | |
289 | if (xenfb->extended) { | |
290 | scancode |= 0x80; | |
291 | xenfb->extended = 0; | |
292 | } | |
293 | xenfb_send_key(xenfb, down, scancode2linux[scancode]); | |
294 | } | |
295 | ||
296 | /* | |
297 | * Send a mouse event from the client to the guest OS | |
298 | * | |
299 | * The QEMU mouse can be in either relative, or absolute mode. | |
300 | * Movement is sent separately from button state, which has to | |
301 | * be encoded as virtual key events. We also don't actually get | |
302 | * given any button up/down events, so have to track changes in | |
303 | * the button state. | |
304 | */ | |
305 | static void xenfb_mouse_event(void *opaque, | |
306 | int dx, int dy, int dz, int button_state) | |
307 | { | |
308 | struct XenInput *xenfb = opaque; | |
c78f7137 GH |
309 | DisplaySurface *surface = qemu_console_surface(xenfb->c.con); |
310 | int dw = surface_width(surface); | |
311 | int dh = surface_height(surface); | |
e7151f83 AL |
312 | int i; |
313 | ||
91043dad DK |
314 | trace_xenfb_mouse_event(opaque, dx, dy, dz, button_state, |
315 | xenfb->abs_pointer_wanted); | |
e7151f83 AL |
316 | if (xenfb->abs_pointer_wanted) |
317 | xenfb_send_position(xenfb, | |
318 | dx * (dw - 1) / 0x7fff, | |
319 | dy * (dh - 1) / 0x7fff, | |
320 | dz); | |
321 | else | |
322 | xenfb_send_motion(xenfb, dx, dy, dz); | |
323 | ||
324 | for (i = 0 ; i < 8 ; i++) { | |
325 | int lastDown = xenfb->button_state & (1 << i); | |
326 | int down = button_state & (1 << i); | |
327 | if (down == lastDown) | |
328 | continue; | |
329 | ||
330 | if (xenfb_send_key(xenfb, down, BTN_LEFT+i) < 0) | |
331 | return; | |
332 | } | |
333 | xenfb->button_state = button_state; | |
334 | } | |
335 | ||
336 | static int input_init(struct XenDevice *xendev) | |
337 | { | |
e7151f83 AL |
338 | xenstore_write_be_int(xendev, "feature-abs-pointer", 1); |
339 | return 0; | |
340 | } | |
341 | ||
384087b2 | 342 | static int input_initialise(struct XenDevice *xendev) |
e7151f83 AL |
343 | { |
344 | struct XenInput *in = container_of(xendev, struct XenInput, c.xendev); | |
345 | int rc; | |
346 | ||
c78f7137 | 347 | if (!in->c.con) { |
96c77dba | 348 | xen_pv_printf(xendev, 1, "ds not set (yet)\n"); |
c78f7137 | 349 | return -1; |
37cdfcf1 SS |
350 | } |
351 | ||
e7151f83 AL |
352 | rc = common_bind(&in->c); |
353 | if (rc != 0) | |
354 | return rc; | |
355 | ||
356 | qemu_add_kbd_event_handler(xenfb_key_event, in); | |
6d646730 JH |
357 | return 0; |
358 | } | |
359 | ||
360 | static void input_connected(struct XenDevice *xendev) | |
361 | { | |
362 | struct XenInput *in = container_of(xendev, struct XenInput, c.xendev); | |
363 | ||
364 | if (xenstore_read_fe_int(xendev, "request-abs-pointer", | |
365 | &in->abs_pointer_wanted) == -1) { | |
366 | in->abs_pointer_wanted = 0; | |
367 | } | |
368 | ||
369 | if (in->qmouse) { | |
370 | qemu_remove_mouse_event_handler(in->qmouse); | |
371 | } | |
91043dad | 372 | trace_xenfb_input_connected(xendev, in->abs_pointer_wanted); |
e7151f83 AL |
373 | in->qmouse = qemu_add_mouse_event_handler(xenfb_mouse_event, in, |
374 | in->abs_pointer_wanted, | |
375 | "Xen PVFB Mouse"); | |
e7151f83 AL |
376 | } |
377 | ||
378 | static void input_disconnect(struct XenDevice *xendev) | |
379 | { | |
380 | struct XenInput *in = container_of(xendev, struct XenInput, c.xendev); | |
381 | ||
382 | if (in->qmouse) { | |
383 | qemu_remove_mouse_event_handler(in->qmouse); | |
384 | in->qmouse = NULL; | |
385 | } | |
386 | qemu_add_kbd_event_handler(NULL, NULL); | |
387 | common_unbind(&in->c); | |
388 | } | |
389 | ||
390 | static void input_event(struct XenDevice *xendev) | |
391 | { | |
392 | struct XenInput *xenfb = container_of(xendev, struct XenInput, c.xendev); | |
393 | struct xenkbd_page *page = xenfb->c.page; | |
394 | ||
395 | /* We don't understand any keyboard events, so just ignore them. */ | |
396 | if (page->out_prod == page->out_cons) | |
397 | return; | |
398 | page->out_cons = page->out_prod; | |
ba18fa2a | 399 | xen_pv_send_notify(&xenfb->c.xendev); |
e7151f83 AL |
400 | } |
401 | ||
402 | /* -------------------------------------------------------------------- */ | |
403 | ||
643f5932 | 404 | static void xenfb_copy_mfns(int mode, int count, xen_pfn_t *dst, void *src) |
e7151f83 AL |
405 | { |
406 | uint32_t *src32 = src; | |
407 | uint64_t *src64 = src; | |
408 | int i; | |
409 | ||
410 | for (i = 0; i < count; i++) | |
411 | dst[i] = (mode == 32) ? src32[i] : src64[i]; | |
412 | } | |
413 | ||
414 | static int xenfb_map_fb(struct XenFB *xenfb) | |
415 | { | |
416 | struct xenfb_page *page = xenfb->c.page; | |
417 | char *protocol = xenfb->c.xendev.protocol; | |
418 | int n_fbdirs; | |
643f5932 SS |
419 | xen_pfn_t *pgmfns = NULL; |
420 | xen_pfn_t *fbmfns = NULL; | |
e7151f83 AL |
421 | void *map, *pd; |
422 | int mode, ret = -1; | |
423 | ||
424 | /* default to native */ | |
425 | pd = page->pd; | |
426 | mode = sizeof(unsigned long) * 8; | |
427 | ||
428 | if (!protocol) { | |
429 | /* | |
430 | * Undefined protocol, some guesswork needed. | |
431 | * | |
432 | * Old frontends which don't set the protocol use | |
433 | * one page directory only, thus pd[1] must be zero. | |
434 | * pd[1] of the 32bit struct layout and the lower | |
435 | * 32 bits of pd[0] of the 64bit struct layout have | |
436 | * the same location, so we can check that ... | |
437 | */ | |
438 | uint32_t *ptr32 = NULL; | |
439 | uint32_t *ptr64 = NULL; | |
440 | #if defined(__i386__) | |
441 | ptr32 = (void*)page->pd; | |
442 | ptr64 = ((void*)page->pd) + 4; | |
443 | #elif defined(__x86_64__) | |
444 | ptr32 = ((void*)page->pd) - 4; | |
445 | ptr64 = (void*)page->pd; | |
446 | #endif | |
447 | if (ptr32) { | |
448 | if (ptr32[1] == 0) { | |
449 | mode = 32; | |
450 | pd = ptr32; | |
451 | } else { | |
452 | mode = 64; | |
453 | pd = ptr64; | |
454 | } | |
455 | } | |
456 | #if defined(__x86_64__) | |
457 | } else if (strcmp(protocol, XEN_IO_PROTO_ABI_X86_32) == 0) { | |
458 | /* 64bit dom0, 32bit domU */ | |
459 | mode = 32; | |
460 | pd = ((void*)page->pd) - 4; | |
461 | #elif defined(__i386__) | |
462 | } else if (strcmp(protocol, XEN_IO_PROTO_ABI_X86_64) == 0) { | |
463 | /* 32bit dom0, 64bit domU */ | |
464 | mode = 64; | |
465 | pd = ((void*)page->pd) + 4; | |
466 | #endif | |
467 | } | |
468 | ||
469 | if (xenfb->pixels) { | |
470 | munmap(xenfb->pixels, xenfb->fbpages * XC_PAGE_SIZE); | |
471 | xenfb->pixels = NULL; | |
472 | } | |
473 | ||
d0448de7 | 474 | xenfb->fbpages = DIV_ROUND_UP(xenfb->fb_len, XC_PAGE_SIZE); |
e7151f83 | 475 | n_fbdirs = xenfb->fbpages * mode / 8; |
d0448de7 | 476 | n_fbdirs = DIV_ROUND_UP(n_fbdirs, XC_PAGE_SIZE); |
e7151f83 | 477 | |
643f5932 SS |
478 | pgmfns = g_malloc0(sizeof(xen_pfn_t) * n_fbdirs); |
479 | fbmfns = g_malloc0(sizeof(xen_pfn_t) * xenfb->fbpages); | |
e7151f83 AL |
480 | |
481 | xenfb_copy_mfns(mode, n_fbdirs, pgmfns, pd); | |
e0cb42ae IC |
482 | map = xenforeignmemory_map(xen_fmem, xenfb->c.xendev.dom, |
483 | PROT_READ, n_fbdirs, pgmfns, NULL); | |
e7151f83 AL |
484 | if (map == NULL) |
485 | goto out; | |
486 | xenfb_copy_mfns(mode, xenfb->fbpages, fbmfns, map); | |
e0cb42ae | 487 | xenforeignmemory_unmap(xen_fmem, map, n_fbdirs); |
e7151f83 | 488 | |
e0cb42ae IC |
489 | xenfb->pixels = xenforeignmemory_map(xen_fmem, xenfb->c.xendev.dom, |
490 | PROT_READ, xenfb->fbpages, fbmfns, NULL); | |
e7151f83 AL |
491 | if (xenfb->pixels == NULL) |
492 | goto out; | |
493 | ||
494 | ret = 0; /* all is fine */ | |
495 | ||
496 | out: | |
7267c094 AL |
497 | g_free(pgmfns); |
498 | g_free(fbmfns); | |
e7151f83 AL |
499 | return ret; |
500 | } | |
501 | ||
502 | static int xenfb_configure_fb(struct XenFB *xenfb, size_t fb_len_lim, | |
c22e91b1 EC |
503 | int width, int height, int depth, |
504 | size_t fb_len, int offset, int row_stride) | |
e7151f83 AL |
505 | { |
506 | size_t mfn_sz = sizeof(*((struct xenfb_page *)0)->pd); | |
507 | size_t pd_len = sizeof(((struct xenfb_page *)0)->pd) / mfn_sz; | |
508 | size_t fb_pages = pd_len * XC_PAGE_SIZE / mfn_sz; | |
509 | size_t fb_len_max = fb_pages * XC_PAGE_SIZE; | |
510 | int max_width, max_height; | |
511 | ||
512 | if (fb_len_lim > fb_len_max) { | |
96c77dba | 513 | xen_pv_printf(&xenfb->c.xendev, 0, |
c22e91b1 EC |
514 | "fb size limit %zu exceeds %zu, corrected\n", |
515 | fb_len_lim, fb_len_max); | |
516 | fb_len_lim = fb_len_max; | |
e7151f83 AL |
517 | } |
518 | if (fb_len_lim && fb_len > fb_len_lim) { | |
96c77dba | 519 | xen_pv_printf(&xenfb->c.xendev, 0, |
c22e91b1 EC |
520 | "frontend fb size %zu limited to %zu\n", |
521 | fb_len, fb_len_lim); | |
522 | fb_len = fb_len_lim; | |
e7151f83 AL |
523 | } |
524 | if (depth != 8 && depth != 16 && depth != 24 && depth != 32) { | |
96c77dba | 525 | xen_pv_printf(&xenfb->c.xendev, 0, |
c22e91b1 EC |
526 | "can't handle frontend fb depth %d\n", |
527 | depth); | |
528 | return -1; | |
e7151f83 AL |
529 | } |
530 | if (row_stride <= 0 || row_stride > fb_len) { | |
96c77dba | 531 | xen_pv_printf(&xenfb->c.xendev, 0, "invalid frontend stride %d\n", |
c22e91b1 EC |
532 | row_stride); |
533 | return -1; | |
e7151f83 AL |
534 | } |
535 | max_width = row_stride / (depth / 8); | |
536 | if (width < 0 || width > max_width) { | |
96c77dba | 537 | xen_pv_printf(&xenfb->c.xendev, 0, |
c22e91b1 EC |
538 | "invalid frontend width %d limited to %d\n", |
539 | width, max_width); | |
540 | width = max_width; | |
e7151f83 AL |
541 | } |
542 | if (offset < 0 || offset >= fb_len) { | |
96c77dba | 543 | xen_pv_printf(&xenfb->c.xendev, 0, |
c22e91b1 EC |
544 | "invalid frontend offset %d (max %zu)\n", |
545 | offset, fb_len - 1); | |
546 | return -1; | |
e7151f83 AL |
547 | } |
548 | max_height = (fb_len - offset) / row_stride; | |
549 | if (height < 0 || height > max_height) { | |
96c77dba | 550 | xen_pv_printf(&xenfb->c.xendev, 0, |
c22e91b1 EC |
551 | "invalid frontend height %d limited to %d\n", |
552 | height, max_height); | |
553 | height = max_height; | |
e7151f83 AL |
554 | } |
555 | xenfb->fb_len = fb_len; | |
556 | xenfb->row_stride = row_stride; | |
557 | xenfb->depth = depth; | |
558 | xenfb->width = width; | |
559 | xenfb->height = height; | |
560 | xenfb->offset = offset; | |
561 | xenfb->up_fullscreen = 1; | |
562 | xenfb->do_resize = 1; | |
96c77dba | 563 | xen_pv_printf(&xenfb->c.xendev, 1, |
b9730c5b | 564 | "framebuffer %dx%dx%d offset %d stride %d\n", |
c22e91b1 | 565 | width, height, depth, offset, row_stride); |
e7151f83 AL |
566 | return 0; |
567 | } | |
568 | ||
569 | /* A convenient function for munging pixels between different depths */ | |
570 | #define BLT(SRC_T,DST_T,RSB,GSB,BSB,RDB,GDB,BDB) \ | |
571 | for (line = y ; line < (y+h) ; line++) { \ | |
572 | SRC_T *src = (SRC_T *)(xenfb->pixels \ | |
573 | + xenfb->offset \ | |
574 | + (line * xenfb->row_stride) \ | |
575 | + (x * xenfb->depth / 8)); \ | |
576 | DST_T *dst = (DST_T *)(data \ | |
577 | + (line * linesize) \ | |
578 | + (x * bpp / 8)); \ | |
579 | int col; \ | |
580 | const int RSS = 32 - (RSB + GSB + BSB); \ | |
581 | const int GSS = 32 - (GSB + BSB); \ | |
582 | const int BSS = 32 - (BSB); \ | |
583 | const uint32_t RSM = (~0U) << (32 - RSB); \ | |
584 | const uint32_t GSM = (~0U) << (32 - GSB); \ | |
585 | const uint32_t BSM = (~0U) << (32 - BSB); \ | |
586 | const int RDS = 32 - (RDB + GDB + BDB); \ | |
587 | const int GDS = 32 - (GDB + BDB); \ | |
588 | const int BDS = 32 - (BDB); \ | |
589 | const uint32_t RDM = (~0U) << (32 - RDB); \ | |
590 | const uint32_t GDM = (~0U) << (32 - GDB); \ | |
591 | const uint32_t BDM = (~0U) << (32 - BDB); \ | |
592 | for (col = x ; col < (x+w) ; col++) { \ | |
593 | uint32_t spix = *src; \ | |
594 | *dst = (((spix << RSS) & RSM & RDM) >> RDS) | \ | |
595 | (((spix << GSS) & GSM & GDM) >> GDS) | \ | |
596 | (((spix << BSS) & BSM & BDM) >> BDS); \ | |
597 | src = (SRC_T *) ((unsigned long) src + xenfb->depth / 8); \ | |
598 | dst = (DST_T *) ((unsigned long) dst + bpp / 8); \ | |
599 | } \ | |
600 | } | |
601 | ||
602 | ||
603 | /* | |
604 | * This copies data from the guest framebuffer region, into QEMU's | |
605 | * displaysurface. qemu uses 16 or 32 bpp. In case the pv framebuffer | |
606 | * uses something else we must convert and copy, otherwise we can | |
607 | * supply the buffer directly and no thing here. | |
608 | */ | |
609 | static void xenfb_guest_copy(struct XenFB *xenfb, int x, int y, int w, int h) | |
610 | { | |
c78f7137 | 611 | DisplaySurface *surface = qemu_console_surface(xenfb->c.con); |
e7151f83 | 612 | int line, oops = 0; |
c78f7137 GH |
613 | int bpp = surface_bits_per_pixel(surface); |
614 | int linesize = surface_stride(surface); | |
615 | uint8_t *data = surface_data(surface); | |
e7151f83 | 616 | |
c78f7137 | 617 | if (!is_buffer_shared(surface)) { |
e7151f83 AL |
618 | switch (xenfb->depth) { |
619 | case 8: | |
620 | if (bpp == 16) { | |
621 | BLT(uint8_t, uint16_t, 3, 3, 2, 5, 6, 5); | |
622 | } else if (bpp == 32) { | |
623 | BLT(uint8_t, uint32_t, 3, 3, 2, 8, 8, 8); | |
624 | } else { | |
625 | oops = 1; | |
626 | } | |
627 | break; | |
628 | case 24: | |
629 | if (bpp == 16) { | |
630 | BLT(uint32_t, uint16_t, 8, 8, 8, 5, 6, 5); | |
631 | } else if (bpp == 32) { | |
632 | BLT(uint32_t, uint32_t, 8, 8, 8, 8, 8, 8); | |
633 | } else { | |
634 | oops = 1; | |
635 | } | |
636 | break; | |
637 | default: | |
638 | oops = 1; | |
639 | } | |
640 | } | |
641 | if (oops) /* should not happen */ | |
96c77dba | 642 | xen_pv_printf(&xenfb->c.xendev, 0, "%s: oops: convert %d -> %d bpp?\n", |
e7151f83 AL |
643 | __FUNCTION__, xenfb->depth, bpp); |
644 | ||
c78f7137 | 645 | dpy_gfx_update(xenfb->c.con, x, y, w, h); |
e7151f83 AL |
646 | } |
647 | ||
dea1b0bd | 648 | #ifdef XENFB_TYPE_REFRESH_PERIOD |
e7151f83 AL |
649 | static int xenfb_queue_full(struct XenFB *xenfb) |
650 | { | |
651 | struct xenfb_page *page = xenfb->c.page; | |
652 | uint32_t cons, prod; | |
653 | ||
654 | if (!page) | |
655 | return 1; | |
656 | ||
657 | prod = page->in_prod; | |
658 | cons = page->in_cons; | |
659 | return prod - cons == XENFB_IN_RING_LEN; | |
660 | } | |
661 | ||
662 | static void xenfb_send_event(struct XenFB *xenfb, union xenfb_in_event *event) | |
663 | { | |
664 | uint32_t prod; | |
665 | struct xenfb_page *page = xenfb->c.page; | |
666 | ||
667 | prod = page->in_prod; | |
668 | /* caller ensures !xenfb_queue_full() */ | |
669 | xen_mb(); /* ensure ring space available */ | |
670 | XENFB_IN_RING_REF(page, prod) = *event; | |
671 | xen_wmb(); /* ensure ring contents visible */ | |
672 | page->in_prod = prod + 1; | |
673 | ||
ba18fa2a | 674 | xen_pv_send_notify(&xenfb->c.xendev); |
e7151f83 AL |
675 | } |
676 | ||
677 | static void xenfb_send_refresh_period(struct XenFB *xenfb, int period) | |
678 | { | |
679 | union xenfb_in_event event; | |
680 | ||
681 | memset(&event, 0, sizeof(event)); | |
682 | event.type = XENFB_TYPE_REFRESH_PERIOD; | |
683 | event.refresh_period.period = period; | |
684 | xenfb_send_event(xenfb, &event); | |
685 | } | |
686 | #endif | |
687 | ||
688 | /* | |
689 | * Periodic update of display. | |
690 | * Also transmit the refresh interval to the frontend. | |
691 | * | |
692 | * Never ever do any qemu display operations | |
693 | * (resize, screen update) outside this function. | |
694 | * Our screen might be inactive. When asked for | |
695 | * an update we know it is active. | |
696 | */ | |
697 | static void xenfb_update(void *opaque) | |
698 | { | |
699 | struct XenFB *xenfb = opaque; | |
da229ef3 | 700 | DisplaySurface *surface; |
e7151f83 AL |
701 | int i; |
702 | ||
703 | if (xenfb->c.xendev.be_state != XenbusStateConnected) | |
704 | return; | |
705 | ||
dea1b0bd | 706 | if (!xenfb->feature_update) { |
c22e91b1 EC |
707 | /* we don't get update notifications, thus use the |
708 | * sledge hammer approach ... */ | |
709 | xenfb->up_fullscreen = 1; | |
e7151f83 AL |
710 | } |
711 | ||
712 | /* resize if needed */ | |
713 | if (xenfb->do_resize) { | |
30f1e661 GH |
714 | pixman_format_code_t format; |
715 | ||
e7151f83 AL |
716 | xenfb->do_resize = 0; |
717 | switch (xenfb->depth) { | |
718 | case 16: | |
719 | case 32: | |
720 | /* console.c supported depth -> buffer can be used directly */ | |
30f1e661 | 721 | format = qemu_default_pixman_format(xenfb->depth, true); |
da229ef3 | 722 | surface = qemu_create_displaysurface_from |
30f1e661 GH |
723 | (xenfb->width, xenfb->height, format, |
724 | xenfb->row_stride, xenfb->pixels + xenfb->offset); | |
e7151f83 AL |
725 | break; |
726 | default: | |
727 | /* we must convert stuff */ | |
da229ef3 | 728 | surface = qemu_create_displaysurface(xenfb->width, xenfb->height); |
e7151f83 AL |
729 | break; |
730 | } | |
c78f7137 | 731 | dpy_gfx_replace_surface(xenfb->c.con, surface); |
96c77dba | 732 | xen_pv_printf(&xenfb->c.xendev, 1, |
b9730c5b | 733 | "update: resizing: %dx%d @ %d bpp%s\n", |
e7151f83 | 734 | xenfb->width, xenfb->height, xenfb->depth, |
c78f7137 | 735 | is_buffer_shared(surface) ? " (shared)" : ""); |
e7151f83 AL |
736 | xenfb->up_fullscreen = 1; |
737 | } | |
738 | ||
739 | /* run queued updates */ | |
740 | if (xenfb->up_fullscreen) { | |
96c77dba | 741 | xen_pv_printf(&xenfb->c.xendev, 3, "update: fullscreen\n"); |
c22e91b1 | 742 | xenfb_guest_copy(xenfb, 0, 0, xenfb->width, xenfb->height); |
e7151f83 | 743 | } else if (xenfb->up_count) { |
96c77dba | 744 | xen_pv_printf(&xenfb->c.xendev, 3, "update: %d rects\n", |
c22e91b1 EC |
745 | xenfb->up_count); |
746 | for (i = 0; i < xenfb->up_count; i++) | |
747 | xenfb_guest_copy(xenfb, | |
748 | xenfb->up_rects[i].x, | |
749 | xenfb->up_rects[i].y, | |
750 | xenfb->up_rects[i].w, | |
751 | xenfb->up_rects[i].h); | |
e7151f83 | 752 | } else { |
96c77dba | 753 | xen_pv_printf(&xenfb->c.xendev, 3, "update: nothing\n"); |
e7151f83 AL |
754 | } |
755 | xenfb->up_count = 0; | |
756 | xenfb->up_fullscreen = 0; | |
757 | } | |
758 | ||
dea1b0bd GH |
759 | static void xenfb_update_interval(void *opaque, uint64_t interval) |
760 | { | |
761 | struct XenFB *xenfb = opaque; | |
762 | ||
763 | if (xenfb->feature_update) { | |
764 | #ifdef XENFB_TYPE_REFRESH_PERIOD | |
765 | if (xenfb_queue_full(xenfb)) { | |
766 | return; | |
767 | } | |
768 | xenfb_send_refresh_period(xenfb, interval); | |
769 | #endif | |
770 | } | |
771 | } | |
772 | ||
e7151f83 AL |
773 | /* QEMU display state changed, so refresh the framebuffer copy */ |
774 | static void xenfb_invalidate(void *opaque) | |
775 | { | |
776 | struct XenFB *xenfb = opaque; | |
777 | xenfb->up_fullscreen = 1; | |
778 | } | |
779 | ||
780 | static void xenfb_handle_events(struct XenFB *xenfb) | |
781 | { | |
7ea11bf3 | 782 | uint32_t prod, cons, out_cons; |
e7151f83 AL |
783 | struct xenfb_page *page = xenfb->c.page; |
784 | ||
785 | prod = page->out_prod; | |
7ea11bf3 | 786 | out_cons = page->out_cons; |
4df26e88 | 787 | if (prod - out_cons > XENFB_OUT_RING_LEN) { |
ac0487e1 SS |
788 | return; |
789 | } | |
e7151f83 | 790 | xen_rmb(); /* ensure we see ring contents up to prod */ |
7ea11bf3 | 791 | for (cons = out_cons; cons != prod; cons++) { |
e7151f83 | 792 | union xenfb_out_event *event = &XENFB_OUT_RING_REF(page, cons); |
7ea11bf3 | 793 | uint8_t type = event->type; |
e7151f83 AL |
794 | int x, y, w, h; |
795 | ||
7ea11bf3 | 796 | switch (type) { |
e7151f83 AL |
797 | case XENFB_TYPE_UPDATE: |
798 | if (xenfb->up_count == UP_QUEUE) | |
799 | xenfb->up_fullscreen = 1; | |
800 | if (xenfb->up_fullscreen) | |
801 | break; | |
802 | x = MAX(event->update.x, 0); | |
803 | y = MAX(event->update.y, 0); | |
804 | w = MIN(event->update.width, xenfb->width - x); | |
805 | h = MIN(event->update.height, xenfb->height - y); | |
806 | if (w < 0 || h < 0) { | |
96c77dba | 807 | xen_pv_printf(&xenfb->c.xendev, 1, "bogus update ignored\n"); |
e7151f83 AL |
808 | break; |
809 | } | |
810 | if (x != event->update.x || | |
811 | y != event->update.y || | |
812 | w != event->update.width || | |
813 | h != event->update.height) { | |
96c77dba | 814 | xen_pv_printf(&xenfb->c.xendev, 1, "bogus update clipped\n"); |
e7151f83 AL |
815 | } |
816 | if (w == xenfb->width && h > xenfb->height / 2) { | |
817 | /* scroll detector: updated more than 50% of the lines, | |
818 | * don't bother keeping track of the rectangles then */ | |
819 | xenfb->up_fullscreen = 1; | |
820 | } else { | |
821 | xenfb->up_rects[xenfb->up_count].x = x; | |
822 | xenfb->up_rects[xenfb->up_count].y = y; | |
823 | xenfb->up_rects[xenfb->up_count].w = w; | |
824 | xenfb->up_rects[xenfb->up_count].h = h; | |
825 | xenfb->up_count++; | |
826 | } | |
827 | break; | |
828 | #ifdef XENFB_TYPE_RESIZE | |
829 | case XENFB_TYPE_RESIZE: | |
830 | if (xenfb_configure_fb(xenfb, xenfb->fb_len, | |
831 | event->resize.width, | |
832 | event->resize.height, | |
833 | event->resize.depth, | |
834 | xenfb->fb_len, | |
835 | event->resize.offset, | |
836 | event->resize.stride) < 0) | |
837 | break; | |
838 | xenfb_invalidate(xenfb); | |
839 | break; | |
840 | #endif | |
841 | } | |
842 | } | |
843 | xen_mb(); /* ensure we're done with ring contents */ | |
844 | page->out_cons = cons; | |
845 | } | |
846 | ||
847 | static int fb_init(struct XenDevice *xendev) | |
848 | { | |
e7151f83 AL |
849 | #ifdef XENFB_TYPE_RESIZE |
850 | xenstore_write_be_int(xendev, "feature-resize", 1); | |
851 | #endif | |
852 | return 0; | |
853 | } | |
854 | ||
384087b2 | 855 | static int fb_initialise(struct XenDevice *xendev) |
e7151f83 AL |
856 | { |
857 | struct XenFB *fb = container_of(xendev, struct XenFB, c.xendev); | |
858 | struct xenfb_page *fb_page; | |
859 | int videoram; | |
860 | int rc; | |
861 | ||
862 | if (xenstore_read_fe_int(xendev, "videoram", &videoram) == -1) | |
863 | videoram = 0; | |
864 | ||
865 | rc = common_bind(&fb->c); | |
866 | if (rc != 0) | |
867 | return rc; | |
868 | ||
869 | fb_page = fb->c.page; | |
870 | rc = xenfb_configure_fb(fb, videoram * 1024 * 1024U, | |
871 | fb_page->width, fb_page->height, fb_page->depth, | |
872 | fb_page->mem_length, 0, fb_page->line_length); | |
873 | if (rc != 0) | |
874 | return rc; | |
875 | ||
876 | rc = xenfb_map_fb(fb); | |
877 | if (rc != 0) | |
878 | return rc; | |
879 | ||
880 | #if 0 /* handled in xen_init_display() for now */ | |
881 | if (!fb->have_console) { | |
882 | fb->c.ds = graphic_console_init(xenfb_update, | |
883 | xenfb_invalidate, | |
884 | NULL, | |
885 | NULL, | |
886 | fb); | |
887 | fb->have_console = 1; | |
888 | } | |
889 | #endif | |
890 | ||
891 | if (xenstore_read_fe_int(xendev, "feature-update", &fb->feature_update) == -1) | |
892 | fb->feature_update = 0; | |
893 | if (fb->feature_update) | |
894 | xenstore_write_be_int(xendev, "request-update", 1); | |
895 | ||
96c77dba | 896 | xen_pv_printf(xendev, 1, "feature-update=%d, videoram=%d\n", |
e7151f83 AL |
897 | fb->feature_update, videoram); |
898 | return 0; | |
899 | } | |
900 | ||
901 | static void fb_disconnect(struct XenDevice *xendev) | |
902 | { | |
903 | struct XenFB *fb = container_of(xendev, struct XenFB, c.xendev); | |
904 | ||
905 | /* | |
906 | * FIXME: qemu can't un-init gfx display (yet?). | |
907 | * Replacing the framebuffer with anonymous shared memory | |
908 | * instead. This releases the guest pages and keeps qemu happy. | |
909 | */ | |
e0cb42ae | 910 | xenforeignmemory_unmap(xen_fmem, fb->pixels, fb->fbpages); |
e7151f83 AL |
911 | fb->pixels = mmap(fb->pixels, fb->fbpages * XC_PAGE_SIZE, |
912 | PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANON, | |
913 | -1, 0); | |
0193c62c | 914 | if (fb->pixels == MAP_FAILED) { |
96c77dba | 915 | xen_pv_printf(xendev, 0, |
0193c62c SS |
916 | "Couldn't replace the framebuffer with anonymous memory errno=%d\n", |
917 | errno); | |
918 | } | |
e7151f83 AL |
919 | common_unbind(&fb->c); |
920 | fb->feature_update = 0; | |
921 | fb->bug_trigger = 0; | |
922 | } | |
923 | ||
924 | static void fb_frontend_changed(struct XenDevice *xendev, const char *node) | |
925 | { | |
926 | struct XenFB *fb = container_of(xendev, struct XenFB, c.xendev); | |
927 | ||
928 | /* | |
929 | * Set state to Connected *again* once the frontend switched | |
930 | * to connected. We must trigger the watch a second time to | |
931 | * workaround a frontend bug. | |
932 | */ | |
933 | if (fb->bug_trigger == 0 && strcmp(node, "state") == 0 && | |
934 | xendev->fe_state == XenbusStateConnected && | |
935 | xendev->be_state == XenbusStateConnected) { | |
96c77dba | 936 | xen_pv_printf(xendev, 2, "re-trigger connected (frontend bug)\n"); |
e7151f83 AL |
937 | xen_be_set_state(xendev, XenbusStateConnected); |
938 | fb->bug_trigger = 1; /* only once */ | |
939 | } | |
940 | } | |
941 | ||
942 | static void fb_event(struct XenDevice *xendev) | |
943 | { | |
944 | struct XenFB *xenfb = container_of(xendev, struct XenFB, c.xendev); | |
945 | ||
946 | xenfb_handle_events(xenfb); | |
ba18fa2a | 947 | xen_pv_send_notify(&xenfb->c.xendev); |
e7151f83 AL |
948 | } |
949 | ||
950 | /* -------------------------------------------------------------------- */ | |
951 | ||
952 | struct XenDevOps xen_kbdmouse_ops = { | |
953 | .size = sizeof(struct XenInput), | |
954 | .init = input_init, | |
384087b2 | 955 | .initialise = input_initialise, |
6d646730 | 956 | .connected = input_connected, |
e7151f83 AL |
957 | .disconnect = input_disconnect, |
958 | .event = input_event, | |
959 | }; | |
960 | ||
961 | struct XenDevOps xen_framebuffer_ops = { | |
962 | .size = sizeof(struct XenFB), | |
963 | .init = fb_init, | |
384087b2 | 964 | .initialise = fb_initialise, |
e7151f83 AL |
965 | .disconnect = fb_disconnect, |
966 | .event = fb_event, | |
967 | .frontend_changed = fb_frontend_changed, | |
968 | }; | |
969 | ||
380cd056 GH |
970 | static const GraphicHwOps xenfb_ops = { |
971 | .invalidate = xenfb_invalidate, | |
972 | .gfx_update = xenfb_update, | |
dea1b0bd | 973 | .update_interval = xenfb_update_interval, |
380cd056 GH |
974 | }; |
975 | ||
e7151f83 AL |
976 | /* |
977 | * FIXME/TODO: Kill this. | |
978 | * Temporary needed while DisplayState reorganization is in flight. | |
979 | */ | |
980 | void xen_init_display(int domid) | |
981 | { | |
982 | struct XenDevice *xfb, *xin; | |
983 | struct XenFB *fb; | |
984 | struct XenInput *in; | |
985 | int i = 0; | |
986 | ||
987 | wait_more: | |
988 | i++; | |
d6f4ade2 | 989 | main_loop_wait(true); |
fa0253d0 EC |
990 | xfb = xen_pv_find_xendev("vfb", domid, 0); |
991 | xin = xen_pv_find_xendev("vkbd", domid, 0); | |
e7151f83 | 992 | if (!xfb || !xin) { |
d6f4ade2 PB |
993 | if (i < 256) { |
994 | usleep(10000); | |
e7151f83 | 995 | goto wait_more; |
d6f4ade2 | 996 | } |
96c77dba | 997 | xen_pv_printf(NULL, 1, "displaystate setup failed\n"); |
e7151f83 AL |
998 | return; |
999 | } | |
1000 | ||
1001 | /* vfb */ | |
1002 | fb = container_of(xfb, struct XenFB, c.xendev); | |
80aaa074 | 1003 | fb->c.con = graphic_console_init(NULL, 0, &xenfb_ops, fb); |
e7151f83 AL |
1004 | fb->have_console = 1; |
1005 | ||
1006 | /* vkbd */ | |
1007 | in = container_of(xin, struct XenInput, c.xendev); | |
c78f7137 | 1008 | in->c.con = fb->c.con; |
e7151f83 AL |
1009 | |
1010 | /* retry ->init() */ | |
1011 | xen_be_check_state(xin); | |
1012 | xen_be_check_state(xfb); | |
1013 | } |