xref: /openbmc/qemu/hw/display/qxl.c (revision 416296a9)
1 /*
2  * Copyright (C) 2010 Red Hat, Inc.
3  *
4  * written by Yaniv Kamay, Izik Eidus, Gerd Hoffmann
5  * maintained by Gerd Hoffmann <kraxel@redhat.com>
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as
9  * published by the Free Software Foundation; either version 2 or
10  * (at your option) version 3 of the License.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, see <http://www.gnu.org/licenses/>.
19  */
20 
21 #include "qemu/osdep.h"
22 #include <zlib.h>
23 
24 #include "qemu-common.h"
25 #include "qemu/timer.h"
26 #include "qemu/queue.h"
27 #include "qemu/atomic.h"
28 #include "sysemu/sysemu.h"
29 #include "trace.h"
30 
31 #include "qxl.h"
32 
33 /*
34  * NOTE: SPICE_RING_PROD_ITEM accesses memory on the pci bar and as
35  * such can be changed by the guest, so to avoid a guest trigerrable
36  * abort we just qxl_set_guest_bug and set the return to NULL. Still
37  * it may happen as a result of emulator bug as well.
38  */
39 #undef SPICE_RING_PROD_ITEM
40 #define SPICE_RING_PROD_ITEM(qxl, r, ret) {                             \
41         uint32_t prod = (r)->prod & SPICE_RING_INDEX_MASK(r);           \
42         if (prod >= ARRAY_SIZE((r)->items)) {                           \
43             qxl_set_guest_bug(qxl, "SPICE_RING_PROD_ITEM indices mismatch " \
44                           "%u >= %zu", prod, ARRAY_SIZE((r)->items));   \
45             ret = NULL;                                                 \
46         } else {                                                        \
47             ret = &(r)->items[prod].el;                                 \
48         }                                                               \
49     }
50 
51 #undef SPICE_RING_CONS_ITEM
52 #define SPICE_RING_CONS_ITEM(qxl, r, ret) {                             \
53         uint32_t cons = (r)->cons & SPICE_RING_INDEX_MASK(r);           \
54         if (cons >= ARRAY_SIZE((r)->items)) {                           \
55             qxl_set_guest_bug(qxl, "SPICE_RING_CONS_ITEM indices mismatch " \
56                           "%u >= %zu", cons, ARRAY_SIZE((r)->items));   \
57             ret = NULL;                                                 \
58         } else {                                                        \
59             ret = &(r)->items[cons].el;                                 \
60         }                                                               \
61     }
62 
63 #undef ALIGN
64 #define ALIGN(a, b) (((a) + ((b) - 1)) & ~((b) - 1))
65 
66 #define PIXEL_SIZE 0.2936875 //1280x1024 is 14.8" x 11.9"
67 
68 #define QXL_MODE(_x, _y, _b, _o)                  \
69     {   .x_res = _x,                              \
70         .y_res = _y,                              \
71         .bits  = _b,                              \
72         .stride = (_x) * (_b) / 8,                \
73         .x_mili = PIXEL_SIZE * (_x),              \
74         .y_mili = PIXEL_SIZE * (_y),              \
75         .orientation = _o,                        \
76     }
77 
78 #define QXL_MODE_16_32(x_res, y_res, orientation) \
79     QXL_MODE(x_res, y_res, 16, orientation),      \
80     QXL_MODE(x_res, y_res, 32, orientation)
81 
82 #define QXL_MODE_EX(x_res, y_res)                 \
83     QXL_MODE_16_32(x_res, y_res, 0),              \
84     QXL_MODE_16_32(x_res, y_res, 1)
85 
86 static QXLMode qxl_modes[] = {
87     QXL_MODE_EX(640, 480),
88     QXL_MODE_EX(800, 480),
89     QXL_MODE_EX(800, 600),
90     QXL_MODE_EX(832, 624),
91     QXL_MODE_EX(960, 640),
92     QXL_MODE_EX(1024, 600),
93     QXL_MODE_EX(1024, 768),
94     QXL_MODE_EX(1152, 864),
95     QXL_MODE_EX(1152, 870),
96     QXL_MODE_EX(1280, 720),
97     QXL_MODE_EX(1280, 760),
98     QXL_MODE_EX(1280, 768),
99     QXL_MODE_EX(1280, 800),
100     QXL_MODE_EX(1280, 960),
101     QXL_MODE_EX(1280, 1024),
102     QXL_MODE_EX(1360, 768),
103     QXL_MODE_EX(1366, 768),
104     QXL_MODE_EX(1400, 1050),
105     QXL_MODE_EX(1440, 900),
106     QXL_MODE_EX(1600, 900),
107     QXL_MODE_EX(1600, 1200),
108     QXL_MODE_EX(1680, 1050),
109     QXL_MODE_EX(1920, 1080),
110     /* these modes need more than 8 MB video memory */
111     QXL_MODE_EX(1920, 1200),
112     QXL_MODE_EX(1920, 1440),
113     QXL_MODE_EX(2000, 2000),
114     QXL_MODE_EX(2048, 1536),
115     QXL_MODE_EX(2048, 2048),
116     QXL_MODE_EX(2560, 1440),
117     QXL_MODE_EX(2560, 1600),
118     /* these modes need more than 16 MB video memory */
119     QXL_MODE_EX(2560, 2048),
120     QXL_MODE_EX(2800, 2100),
121     QXL_MODE_EX(3200, 2400),
122     /* these modes need more than 32 MB video memory */
123     QXL_MODE_EX(3840, 2160), /* 4k mainstream */
124     QXL_MODE_EX(4096, 2160), /* 4k            */
125     /* these modes need more than 64 MB video memory */
126     QXL_MODE_EX(7680, 4320), /* 8k mainstream */
127     /* these modes need more than 128 MB video memory */
128     QXL_MODE_EX(8192, 4320), /* 8k            */
129 };
130 
131 static void qxl_send_events(PCIQXLDevice *d, uint32_t events);
132 static int qxl_destroy_primary(PCIQXLDevice *d, qxl_async_io async);
133 static void qxl_reset_memslots(PCIQXLDevice *d);
134 static void qxl_reset_surfaces(PCIQXLDevice *d);
135 static void qxl_ring_set_dirty(PCIQXLDevice *qxl);
136 
137 static void qxl_hw_update(void *opaque);
138 
139 void qxl_set_guest_bug(PCIQXLDevice *qxl, const char *msg, ...)
140 {
141     trace_qxl_set_guest_bug(qxl->id);
142     qxl_send_events(qxl, QXL_INTERRUPT_ERROR);
143     qxl->guest_bug = 1;
144     if (qxl->guestdebug) {
145         va_list ap;
146         va_start(ap, msg);
147         fprintf(stderr, "qxl-%d: guest bug: ", qxl->id);
148         vfprintf(stderr, msg, ap);
149         fprintf(stderr, "\n");
150         va_end(ap);
151     }
152 }
153 
154 static void qxl_clear_guest_bug(PCIQXLDevice *qxl)
155 {
156     qxl->guest_bug = 0;
157 }
158 
159 void qxl_spice_update_area(PCIQXLDevice *qxl, uint32_t surface_id,
160                            struct QXLRect *area, struct QXLRect *dirty_rects,
161                            uint32_t num_dirty_rects,
162                            uint32_t clear_dirty_region,
163                            qxl_async_io async, struct QXLCookie *cookie)
164 {
165     trace_qxl_spice_update_area(qxl->id, surface_id, area->left, area->right,
166                                 area->top, area->bottom);
167     trace_qxl_spice_update_area_rest(qxl->id, num_dirty_rects,
168                                      clear_dirty_region);
169     if (async == QXL_SYNC) {
170         spice_qxl_update_area(&qxl->ssd.qxl, surface_id, area,
171                         dirty_rects, num_dirty_rects, clear_dirty_region);
172     } else {
173         assert(cookie != NULL);
174         spice_qxl_update_area_async(&qxl->ssd.qxl, surface_id, area,
175                                     clear_dirty_region, (uintptr_t)cookie);
176     }
177 }
178 
179 static void qxl_spice_destroy_surface_wait_complete(PCIQXLDevice *qxl,
180                                                     uint32_t id)
181 {
182     trace_qxl_spice_destroy_surface_wait_complete(qxl->id, id);
183     qemu_mutex_lock(&qxl->track_lock);
184     qxl->guest_surfaces.cmds[id] = 0;
185     qxl->guest_surfaces.count--;
186     qemu_mutex_unlock(&qxl->track_lock);
187 }
188 
189 static void qxl_spice_destroy_surface_wait(PCIQXLDevice *qxl, uint32_t id,
190                                            qxl_async_io async)
191 {
192     QXLCookie *cookie;
193 
194     trace_qxl_spice_destroy_surface_wait(qxl->id, id, async);
195     if (async) {
196         cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
197                                 QXL_IO_DESTROY_SURFACE_ASYNC);
198         cookie->u.surface_id = id;
199         spice_qxl_destroy_surface_async(&qxl->ssd.qxl, id, (uintptr_t)cookie);
200     } else {
201         spice_qxl_destroy_surface_wait(&qxl->ssd.qxl, id);
202         qxl_spice_destroy_surface_wait_complete(qxl, id);
203     }
204 }
205 
206 static void qxl_spice_flush_surfaces_async(PCIQXLDevice *qxl)
207 {
208     trace_qxl_spice_flush_surfaces_async(qxl->id, qxl->guest_surfaces.count,
209                                          qxl->num_free_res);
210     spice_qxl_flush_surfaces_async(&qxl->ssd.qxl,
211         (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
212                                   QXL_IO_FLUSH_SURFACES_ASYNC));
213 }
214 
215 void qxl_spice_loadvm_commands(PCIQXLDevice *qxl, struct QXLCommandExt *ext,
216                                uint32_t count)
217 {
218     trace_qxl_spice_loadvm_commands(qxl->id, ext, count);
219     spice_qxl_loadvm_commands(&qxl->ssd.qxl, ext, count);
220 }
221 
222 void qxl_spice_oom(PCIQXLDevice *qxl)
223 {
224     trace_qxl_spice_oom(qxl->id);
225     spice_qxl_oom(&qxl->ssd.qxl);
226 }
227 
228 void qxl_spice_reset_memslots(PCIQXLDevice *qxl)
229 {
230     trace_qxl_spice_reset_memslots(qxl->id);
231     spice_qxl_reset_memslots(&qxl->ssd.qxl);
232 }
233 
234 static void qxl_spice_destroy_surfaces_complete(PCIQXLDevice *qxl)
235 {
236     trace_qxl_spice_destroy_surfaces_complete(qxl->id);
237     qemu_mutex_lock(&qxl->track_lock);
238     memset(qxl->guest_surfaces.cmds, 0,
239            sizeof(qxl->guest_surfaces.cmds[0]) * qxl->ssd.num_surfaces);
240     qxl->guest_surfaces.count = 0;
241     qemu_mutex_unlock(&qxl->track_lock);
242 }
243 
244 static void qxl_spice_destroy_surfaces(PCIQXLDevice *qxl, qxl_async_io async)
245 {
246     trace_qxl_spice_destroy_surfaces(qxl->id, async);
247     if (async) {
248         spice_qxl_destroy_surfaces_async(&qxl->ssd.qxl,
249                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
250                                           QXL_IO_DESTROY_ALL_SURFACES_ASYNC));
251     } else {
252         spice_qxl_destroy_surfaces(&qxl->ssd.qxl);
253         qxl_spice_destroy_surfaces_complete(qxl);
254     }
255 }
256 
257 static void qxl_spice_monitors_config_async(PCIQXLDevice *qxl, int replay)
258 {
259     trace_qxl_spice_monitors_config(qxl->id);
260     if (replay) {
261         /*
262          * don't use QXL_COOKIE_TYPE_IO:
263          *  - we are not running yet (post_load), we will assert
264          *    in send_events
265          *  - this is not a guest io, but a reply, so async_io isn't set.
266          */
267         spice_qxl_monitors_config_async(&qxl->ssd.qxl,
268                 qxl->guest_monitors_config,
269                 MEMSLOT_GROUP_GUEST,
270                 (uintptr_t)qxl_cookie_new(
271                     QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG,
272                     0));
273     } else {
274 #if SPICE_SERVER_VERSION >= 0x000c06 /* release 0.12.6 */
275         if (qxl->max_outputs) {
276             spice_qxl_set_max_monitors(&qxl->ssd.qxl, qxl->max_outputs);
277         }
278 #endif
279         qxl->guest_monitors_config = qxl->ram->monitors_config;
280         spice_qxl_monitors_config_async(&qxl->ssd.qxl,
281                 qxl->ram->monitors_config,
282                 MEMSLOT_GROUP_GUEST,
283                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
284                                           QXL_IO_MONITORS_CONFIG_ASYNC));
285     }
286 }
287 
288 void qxl_spice_reset_image_cache(PCIQXLDevice *qxl)
289 {
290     trace_qxl_spice_reset_image_cache(qxl->id);
291     spice_qxl_reset_image_cache(&qxl->ssd.qxl);
292 }
293 
294 void qxl_spice_reset_cursor(PCIQXLDevice *qxl)
295 {
296     trace_qxl_spice_reset_cursor(qxl->id);
297     spice_qxl_reset_cursor(&qxl->ssd.qxl);
298     qemu_mutex_lock(&qxl->track_lock);
299     qxl->guest_cursor = 0;
300     qemu_mutex_unlock(&qxl->track_lock);
301     if (qxl->ssd.cursor) {
302         cursor_put(qxl->ssd.cursor);
303     }
304     qxl->ssd.cursor = cursor_builtin_hidden();
305 }
306 
307 static ram_addr_t qxl_rom_size(void)
308 {
309     uint32_t required_rom_size = sizeof(QXLRom) + sizeof(QXLModes) +
310                                  sizeof(qxl_modes);
311     uint32_t rom_size = 8192; /* two pages */
312 
313     QEMU_BUILD_BUG_ON(required_rom_size > rom_size);
314     return rom_size;
315 }
316 
317 static void init_qxl_rom(PCIQXLDevice *d)
318 {
319     QXLRom *rom = memory_region_get_ram_ptr(&d->rom_bar);
320     QXLModes *modes = (QXLModes *)(rom + 1);
321     uint32_t ram_header_size;
322     uint32_t surface0_area_size;
323     uint32_t num_pages;
324     uint32_t fb;
325     int i, n;
326 
327     memset(rom, 0, d->rom_size);
328 
329     rom->magic         = cpu_to_le32(QXL_ROM_MAGIC);
330     rom->id            = cpu_to_le32(d->id);
331     rom->log_level     = cpu_to_le32(d->guestdebug);
332     rom->modes_offset  = cpu_to_le32(sizeof(QXLRom));
333 
334     rom->slot_gen_bits = MEMSLOT_GENERATION_BITS;
335     rom->slot_id_bits  = MEMSLOT_SLOT_BITS;
336     rom->slots_start   = 1;
337     rom->slots_end     = NUM_MEMSLOTS - 1;
338     rom->n_surfaces    = cpu_to_le32(d->ssd.num_surfaces);
339 
340     for (i = 0, n = 0; i < ARRAY_SIZE(qxl_modes); i++) {
341         fb = qxl_modes[i].y_res * qxl_modes[i].stride;
342         if (fb > d->vgamem_size) {
343             continue;
344         }
345         modes->modes[n].id          = cpu_to_le32(i);
346         modes->modes[n].x_res       = cpu_to_le32(qxl_modes[i].x_res);
347         modes->modes[n].y_res       = cpu_to_le32(qxl_modes[i].y_res);
348         modes->modes[n].bits        = cpu_to_le32(qxl_modes[i].bits);
349         modes->modes[n].stride      = cpu_to_le32(qxl_modes[i].stride);
350         modes->modes[n].x_mili      = cpu_to_le32(qxl_modes[i].x_mili);
351         modes->modes[n].y_mili      = cpu_to_le32(qxl_modes[i].y_mili);
352         modes->modes[n].orientation = cpu_to_le32(qxl_modes[i].orientation);
353         n++;
354     }
355     modes->n_modes     = cpu_to_le32(n);
356 
357     ram_header_size    = ALIGN(sizeof(QXLRam), 4096);
358     surface0_area_size = ALIGN(d->vgamem_size, 4096);
359     num_pages          = d->vga.vram_size;
360     num_pages         -= ram_header_size;
361     num_pages         -= surface0_area_size;
362     num_pages          = num_pages / QXL_PAGE_SIZE;
363 
364     assert(ram_header_size + surface0_area_size <= d->vga.vram_size);
365 
366     rom->draw_area_offset   = cpu_to_le32(0);
367     rom->surface0_area_size = cpu_to_le32(surface0_area_size);
368     rom->pages_offset       = cpu_to_le32(surface0_area_size);
369     rom->num_pages          = cpu_to_le32(num_pages);
370     rom->ram_header_offset  = cpu_to_le32(d->vga.vram_size - ram_header_size);
371 
372     d->shadow_rom = *rom;
373     d->rom        = rom;
374     d->modes      = modes;
375 }
376 
377 static void init_qxl_ram(PCIQXLDevice *d)
378 {
379     uint8_t *buf;
380     uint64_t *item;
381 
382     buf = d->vga.vram_ptr;
383     d->ram = (QXLRam *)(buf + le32_to_cpu(d->shadow_rom.ram_header_offset));
384     d->ram->magic       = cpu_to_le32(QXL_RAM_MAGIC);
385     d->ram->int_pending = cpu_to_le32(0);
386     d->ram->int_mask    = cpu_to_le32(0);
387     d->ram->update_surface = 0;
388     d->ram->monitors_config = 0;
389     SPICE_RING_INIT(&d->ram->cmd_ring);
390     SPICE_RING_INIT(&d->ram->cursor_ring);
391     SPICE_RING_INIT(&d->ram->release_ring);
392     SPICE_RING_PROD_ITEM(d, &d->ram->release_ring, item);
393     assert(item);
394     *item = 0;
395     qxl_ring_set_dirty(d);
396 }
397 
398 /* can be called from spice server thread context */
399 static void qxl_set_dirty(MemoryRegion *mr, ram_addr_t addr, ram_addr_t end)
400 {
401     memory_region_set_dirty(mr, addr, end - addr);
402 }
403 
404 static void qxl_rom_set_dirty(PCIQXLDevice *qxl)
405 {
406     qxl_set_dirty(&qxl->rom_bar, 0, qxl->rom_size);
407 }
408 
409 /* called from spice server thread context only */
410 static void qxl_ram_set_dirty(PCIQXLDevice *qxl, void *ptr)
411 {
412     void *base = qxl->vga.vram_ptr;
413     intptr_t offset;
414 
415     offset = ptr - base;
416     assert(offset < qxl->vga.vram_size);
417     qxl_set_dirty(&qxl->vga.vram, offset, offset + 3);
418 }
419 
420 /* can be called from spice server thread context */
421 static void qxl_ring_set_dirty(PCIQXLDevice *qxl)
422 {
423     ram_addr_t addr = qxl->shadow_rom.ram_header_offset;
424     ram_addr_t end  = qxl->vga.vram_size;
425     qxl_set_dirty(&qxl->vga.vram, addr, end);
426 }
427 
428 /*
429  * keep track of some command state, for savevm/loadvm.
430  * called from spice server thread context only
431  */
432 static int qxl_track_command(PCIQXLDevice *qxl, struct QXLCommandExt *ext)
433 {
434     switch (le32_to_cpu(ext->cmd.type)) {
435     case QXL_CMD_SURFACE:
436     {
437         QXLSurfaceCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
438 
439         if (!cmd) {
440             return 1;
441         }
442         uint32_t id = le32_to_cpu(cmd->surface_id);
443 
444         if (id >= qxl->ssd.num_surfaces) {
445             qxl_set_guest_bug(qxl, "QXL_CMD_SURFACE id %d >= %d", id,
446                               qxl->ssd.num_surfaces);
447             return 1;
448         }
449         if (cmd->type == QXL_SURFACE_CMD_CREATE &&
450             (cmd->u.surface_create.stride & 0x03) != 0) {
451             qxl_set_guest_bug(qxl, "QXL_CMD_SURFACE stride = %d %% 4 != 0\n",
452                               cmd->u.surface_create.stride);
453             return 1;
454         }
455         qemu_mutex_lock(&qxl->track_lock);
456         if (cmd->type == QXL_SURFACE_CMD_CREATE) {
457             qxl->guest_surfaces.cmds[id] = ext->cmd.data;
458             qxl->guest_surfaces.count++;
459             if (qxl->guest_surfaces.max < qxl->guest_surfaces.count)
460                 qxl->guest_surfaces.max = qxl->guest_surfaces.count;
461         }
462         if (cmd->type == QXL_SURFACE_CMD_DESTROY) {
463             qxl->guest_surfaces.cmds[id] = 0;
464             qxl->guest_surfaces.count--;
465         }
466         qemu_mutex_unlock(&qxl->track_lock);
467         break;
468     }
469     case QXL_CMD_CURSOR:
470     {
471         QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
472 
473         if (!cmd) {
474             return 1;
475         }
476         if (cmd->type == QXL_CURSOR_SET) {
477             qemu_mutex_lock(&qxl->track_lock);
478             qxl->guest_cursor = ext->cmd.data;
479             qemu_mutex_unlock(&qxl->track_lock);
480         }
481         break;
482     }
483     }
484     return 0;
485 }
486 
487 /* spice display interface callbacks */
488 
489 static void interface_attach_worker(QXLInstance *sin, QXLWorker *qxl_worker)
490 {
491     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
492 
493     trace_qxl_interface_attach_worker(qxl->id);
494     qxl->ssd.worker = qxl_worker;
495 }
496 
497 static void interface_set_compression_level(QXLInstance *sin, int level)
498 {
499     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
500 
501     trace_qxl_interface_set_compression_level(qxl->id, level);
502     qxl->shadow_rom.compression_level = cpu_to_le32(level);
503     qxl->rom->compression_level = cpu_to_le32(level);
504     qxl_rom_set_dirty(qxl);
505 }
506 
507 #if SPICE_NEEDS_SET_MM_TIME
508 static void interface_set_mm_time(QXLInstance *sin, uint32_t mm_time)
509 {
510     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
511 
512     if (!qemu_spice_display_is_running(&qxl->ssd)) {
513         return;
514     }
515 
516     trace_qxl_interface_set_mm_time(qxl->id, mm_time);
517     qxl->shadow_rom.mm_clock = cpu_to_le32(mm_time);
518     qxl->rom->mm_clock = cpu_to_le32(mm_time);
519     qxl_rom_set_dirty(qxl);
520 }
521 #endif
522 
523 static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info)
524 {
525     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
526 
527     trace_qxl_interface_get_init_info(qxl->id);
528     info->memslot_gen_bits = MEMSLOT_GENERATION_BITS;
529     info->memslot_id_bits = MEMSLOT_SLOT_BITS;
530     info->num_memslots = NUM_MEMSLOTS;
531     info->num_memslots_groups = NUM_MEMSLOTS_GROUPS;
532     info->internal_groupslot_id = 0;
533     info->qxl_ram_size =
534         le32_to_cpu(qxl->shadow_rom.num_pages) << QXL_PAGE_BITS;
535     info->n_surfaces = qxl->ssd.num_surfaces;
536 }
537 
538 static const char *qxl_mode_to_string(int mode)
539 {
540     switch (mode) {
541     case QXL_MODE_COMPAT:
542         return "compat";
543     case QXL_MODE_NATIVE:
544         return "native";
545     case QXL_MODE_UNDEFINED:
546         return "undefined";
547     case QXL_MODE_VGA:
548         return "vga";
549     }
550     return "INVALID";
551 }
552 
553 static const char *io_port_to_string(uint32_t io_port)
554 {
555     if (io_port >= QXL_IO_RANGE_SIZE) {
556         return "out of range";
557     }
558     static const char *io_port_to_string[QXL_IO_RANGE_SIZE + 1] = {
559         [QXL_IO_NOTIFY_CMD]             = "QXL_IO_NOTIFY_CMD",
560         [QXL_IO_NOTIFY_CURSOR]          = "QXL_IO_NOTIFY_CURSOR",
561         [QXL_IO_UPDATE_AREA]            = "QXL_IO_UPDATE_AREA",
562         [QXL_IO_UPDATE_IRQ]             = "QXL_IO_UPDATE_IRQ",
563         [QXL_IO_NOTIFY_OOM]             = "QXL_IO_NOTIFY_OOM",
564         [QXL_IO_RESET]                  = "QXL_IO_RESET",
565         [QXL_IO_SET_MODE]               = "QXL_IO_SET_MODE",
566         [QXL_IO_LOG]                    = "QXL_IO_LOG",
567         [QXL_IO_MEMSLOT_ADD]            = "QXL_IO_MEMSLOT_ADD",
568         [QXL_IO_MEMSLOT_DEL]            = "QXL_IO_MEMSLOT_DEL",
569         [QXL_IO_DETACH_PRIMARY]         = "QXL_IO_DETACH_PRIMARY",
570         [QXL_IO_ATTACH_PRIMARY]         = "QXL_IO_ATTACH_PRIMARY",
571         [QXL_IO_CREATE_PRIMARY]         = "QXL_IO_CREATE_PRIMARY",
572         [QXL_IO_DESTROY_PRIMARY]        = "QXL_IO_DESTROY_PRIMARY",
573         [QXL_IO_DESTROY_SURFACE_WAIT]   = "QXL_IO_DESTROY_SURFACE_WAIT",
574         [QXL_IO_DESTROY_ALL_SURFACES]   = "QXL_IO_DESTROY_ALL_SURFACES",
575         [QXL_IO_UPDATE_AREA_ASYNC]      = "QXL_IO_UPDATE_AREA_ASYNC",
576         [QXL_IO_MEMSLOT_ADD_ASYNC]      = "QXL_IO_MEMSLOT_ADD_ASYNC",
577         [QXL_IO_CREATE_PRIMARY_ASYNC]   = "QXL_IO_CREATE_PRIMARY_ASYNC",
578         [QXL_IO_DESTROY_PRIMARY_ASYNC]  = "QXL_IO_DESTROY_PRIMARY_ASYNC",
579         [QXL_IO_DESTROY_SURFACE_ASYNC]  = "QXL_IO_DESTROY_SURFACE_ASYNC",
580         [QXL_IO_DESTROY_ALL_SURFACES_ASYNC]
581                                         = "QXL_IO_DESTROY_ALL_SURFACES_ASYNC",
582         [QXL_IO_FLUSH_SURFACES_ASYNC]   = "QXL_IO_FLUSH_SURFACES_ASYNC",
583         [QXL_IO_FLUSH_RELEASE]          = "QXL_IO_FLUSH_RELEASE",
584         [QXL_IO_MONITORS_CONFIG_ASYNC]  = "QXL_IO_MONITORS_CONFIG_ASYNC",
585     };
586     return io_port_to_string[io_port];
587 }
588 
589 /* called from spice server thread context only */
590 static int interface_get_command(QXLInstance *sin, struct QXLCommandExt *ext)
591 {
592     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
593     SimpleSpiceUpdate *update;
594     QXLCommandRing *ring;
595     QXLCommand *cmd;
596     int notify, ret;
597 
598     trace_qxl_ring_command_check(qxl->id, qxl_mode_to_string(qxl->mode));
599 
600     switch (qxl->mode) {
601     case QXL_MODE_VGA:
602         ret = false;
603         qemu_mutex_lock(&qxl->ssd.lock);
604         update = QTAILQ_FIRST(&qxl->ssd.updates);
605         if (update != NULL) {
606             QTAILQ_REMOVE(&qxl->ssd.updates, update, next);
607             *ext = update->ext;
608             ret = true;
609         }
610         qemu_mutex_unlock(&qxl->ssd.lock);
611         if (ret) {
612             trace_qxl_ring_command_get(qxl->id, qxl_mode_to_string(qxl->mode));
613             qxl_log_command(qxl, "vga", ext);
614         }
615         return ret;
616     case QXL_MODE_COMPAT:
617     case QXL_MODE_NATIVE:
618     case QXL_MODE_UNDEFINED:
619         ring = &qxl->ram->cmd_ring;
620         if (qxl->guest_bug || SPICE_RING_IS_EMPTY(ring)) {
621             return false;
622         }
623         SPICE_RING_CONS_ITEM(qxl, ring, cmd);
624         if (!cmd) {
625             return false;
626         }
627         ext->cmd      = *cmd;
628         ext->group_id = MEMSLOT_GROUP_GUEST;
629         ext->flags    = qxl->cmdflags;
630         SPICE_RING_POP(ring, notify);
631         qxl_ring_set_dirty(qxl);
632         if (notify) {
633             qxl_send_events(qxl, QXL_INTERRUPT_DISPLAY);
634         }
635         qxl->guest_primary.commands++;
636         qxl_track_command(qxl, ext);
637         qxl_log_command(qxl, "cmd", ext);
638         trace_qxl_ring_command_get(qxl->id, qxl_mode_to_string(qxl->mode));
639         return true;
640     default:
641         return false;
642     }
643 }
644 
645 /* called from spice server thread context only */
646 static int interface_req_cmd_notification(QXLInstance *sin)
647 {
648     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
649     int wait = 1;
650 
651     trace_qxl_ring_command_req_notification(qxl->id);
652     switch (qxl->mode) {
653     case QXL_MODE_COMPAT:
654     case QXL_MODE_NATIVE:
655     case QXL_MODE_UNDEFINED:
656         SPICE_RING_CONS_WAIT(&qxl->ram->cmd_ring, wait);
657         qxl_ring_set_dirty(qxl);
658         break;
659     default:
660         /* nothing */
661         break;
662     }
663     return wait;
664 }
665 
666 /* called from spice server thread context only */
667 static inline void qxl_push_free_res(PCIQXLDevice *d, int flush)
668 {
669     QXLReleaseRing *ring = &d->ram->release_ring;
670     uint64_t *item;
671     int notify;
672 
673 #define QXL_FREE_BUNCH_SIZE 32
674 
675     if (ring->prod - ring->cons + 1 == ring->num_items) {
676         /* ring full -- can't push */
677         return;
678     }
679     if (!flush && d->oom_running) {
680         /* collect everything from oom handler before pushing */
681         return;
682     }
683     if (!flush && d->num_free_res < QXL_FREE_BUNCH_SIZE) {
684         /* collect a bit more before pushing */
685         return;
686     }
687 
688     SPICE_RING_PUSH(ring, notify);
689     trace_qxl_ring_res_push(d->id, qxl_mode_to_string(d->mode),
690            d->guest_surfaces.count, d->num_free_res,
691            d->last_release, notify ? "yes" : "no");
692     trace_qxl_ring_res_push_rest(d->id, ring->prod - ring->cons,
693            ring->num_items, ring->prod, ring->cons);
694     if (notify) {
695         qxl_send_events(d, QXL_INTERRUPT_DISPLAY);
696     }
697     SPICE_RING_PROD_ITEM(d, ring, item);
698     if (!item) {
699         return;
700     }
701     *item = 0;
702     d->num_free_res = 0;
703     d->last_release = NULL;
704     qxl_ring_set_dirty(d);
705 }
706 
707 /* called from spice server thread context only */
708 static void interface_release_resource(QXLInstance *sin,
709                                        QXLReleaseInfoExt ext)
710 {
711     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
712     QXLReleaseRing *ring;
713     uint64_t *item, id;
714 
715     if (ext.group_id == MEMSLOT_GROUP_HOST) {
716         /* host group -> vga mode update request */
717         QXLCommandExt *cmdext = (void *)(intptr_t)(ext.info->id);
718         SimpleSpiceUpdate *update;
719         g_assert(cmdext->cmd.type == QXL_CMD_DRAW);
720         update = container_of(cmdext, SimpleSpiceUpdate, ext);
721         qemu_spice_destroy_update(&qxl->ssd, update);
722         return;
723     }
724 
725     /*
726      * ext->info points into guest-visible memory
727      * pci bar 0, $command.release_info
728      */
729     ring = &qxl->ram->release_ring;
730     SPICE_RING_PROD_ITEM(qxl, ring, item);
731     if (!item) {
732         return;
733     }
734     if (*item == 0) {
735         /* stick head into the ring */
736         id = ext.info->id;
737         ext.info->next = 0;
738         qxl_ram_set_dirty(qxl, &ext.info->next);
739         *item = id;
740         qxl_ring_set_dirty(qxl);
741     } else {
742         /* append item to the list */
743         qxl->last_release->next = ext.info->id;
744         qxl_ram_set_dirty(qxl, &qxl->last_release->next);
745         ext.info->next = 0;
746         qxl_ram_set_dirty(qxl, &ext.info->next);
747     }
748     qxl->last_release = ext.info;
749     qxl->num_free_res++;
750     trace_qxl_ring_res_put(qxl->id, qxl->num_free_res);
751     qxl_push_free_res(qxl, 0);
752 }
753 
754 /* called from spice server thread context only */
755 static int interface_get_cursor_command(QXLInstance *sin, struct QXLCommandExt *ext)
756 {
757     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
758     QXLCursorRing *ring;
759     QXLCommand *cmd;
760     int notify;
761 
762     trace_qxl_ring_cursor_check(qxl->id, qxl_mode_to_string(qxl->mode));
763 
764     switch (qxl->mode) {
765     case QXL_MODE_COMPAT:
766     case QXL_MODE_NATIVE:
767     case QXL_MODE_UNDEFINED:
768         ring = &qxl->ram->cursor_ring;
769         if (SPICE_RING_IS_EMPTY(ring)) {
770             return false;
771         }
772         SPICE_RING_CONS_ITEM(qxl, ring, cmd);
773         if (!cmd) {
774             return false;
775         }
776         ext->cmd      = *cmd;
777         ext->group_id = MEMSLOT_GROUP_GUEST;
778         ext->flags    = qxl->cmdflags;
779         SPICE_RING_POP(ring, notify);
780         qxl_ring_set_dirty(qxl);
781         if (notify) {
782             qxl_send_events(qxl, QXL_INTERRUPT_CURSOR);
783         }
784         qxl->guest_primary.commands++;
785         qxl_track_command(qxl, ext);
786         qxl_log_command(qxl, "csr", ext);
787         if (qxl->id == 0) {
788             qxl_render_cursor(qxl, ext);
789         }
790         trace_qxl_ring_cursor_get(qxl->id, qxl_mode_to_string(qxl->mode));
791         return true;
792     default:
793         return false;
794     }
795 }
796 
797 /* called from spice server thread context only */
798 static int interface_req_cursor_notification(QXLInstance *sin)
799 {
800     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
801     int wait = 1;
802 
803     trace_qxl_ring_cursor_req_notification(qxl->id);
804     switch (qxl->mode) {
805     case QXL_MODE_COMPAT:
806     case QXL_MODE_NATIVE:
807     case QXL_MODE_UNDEFINED:
808         SPICE_RING_CONS_WAIT(&qxl->ram->cursor_ring, wait);
809         qxl_ring_set_dirty(qxl);
810         break;
811     default:
812         /* nothing */
813         break;
814     }
815     return wait;
816 }
817 
818 /* called from spice server thread context */
819 static void interface_notify_update(QXLInstance *sin, uint32_t update_id)
820 {
821     /*
822      * Called by spice-server as a result of a QXL_CMD_UPDATE which is not in
823      * use by xf86-video-qxl and is defined out in the qxl windows driver.
824      * Probably was at some earlier version that is prior to git start (2009),
825      * and is still guest trigerrable.
826      */
827     fprintf(stderr, "%s: deprecated\n", __func__);
828 }
829 
830 /* called from spice server thread context only */
831 static int interface_flush_resources(QXLInstance *sin)
832 {
833     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
834     int ret;
835 
836     ret = qxl->num_free_res;
837     if (ret) {
838         qxl_push_free_res(qxl, 1);
839     }
840     return ret;
841 }
842 
843 static void qxl_create_guest_primary_complete(PCIQXLDevice *d);
844 
845 /* called from spice server thread context only */
846 static void interface_async_complete_io(PCIQXLDevice *qxl, QXLCookie *cookie)
847 {
848     uint32_t current_async;
849 
850     qemu_mutex_lock(&qxl->async_lock);
851     current_async = qxl->current_async;
852     qxl->current_async = QXL_UNDEFINED_IO;
853     qemu_mutex_unlock(&qxl->async_lock);
854 
855     trace_qxl_interface_async_complete_io(qxl->id, current_async, cookie);
856     if (!cookie) {
857         fprintf(stderr, "qxl: %s: error, cookie is NULL\n", __func__);
858         return;
859     }
860     if (cookie && current_async != cookie->io) {
861         fprintf(stderr,
862                 "qxl: %s: error: current_async = %d != %"
863                 PRId64 " = cookie->io\n", __func__, current_async, cookie->io);
864     }
865     switch (current_async) {
866     case QXL_IO_MEMSLOT_ADD_ASYNC:
867     case QXL_IO_DESTROY_PRIMARY_ASYNC:
868     case QXL_IO_UPDATE_AREA_ASYNC:
869     case QXL_IO_FLUSH_SURFACES_ASYNC:
870     case QXL_IO_MONITORS_CONFIG_ASYNC:
871         break;
872     case QXL_IO_CREATE_PRIMARY_ASYNC:
873         qxl_create_guest_primary_complete(qxl);
874         break;
875     case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
876         qxl_spice_destroy_surfaces_complete(qxl);
877         break;
878     case QXL_IO_DESTROY_SURFACE_ASYNC:
879         qxl_spice_destroy_surface_wait_complete(qxl, cookie->u.surface_id);
880         break;
881     default:
882         fprintf(stderr, "qxl: %s: unexpected current_async %d\n", __func__,
883                 current_async);
884     }
885     qxl_send_events(qxl, QXL_INTERRUPT_IO_CMD);
886 }
887 
888 /* called from spice server thread context only */
889 static void interface_update_area_complete(QXLInstance *sin,
890         uint32_t surface_id,
891         QXLRect *dirty, uint32_t num_updated_rects)
892 {
893     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
894     int i;
895     int qxl_i;
896 
897     qemu_mutex_lock(&qxl->ssd.lock);
898     if (surface_id != 0 || !num_updated_rects ||
899         !qxl->render_update_cookie_num) {
900         qemu_mutex_unlock(&qxl->ssd.lock);
901         return;
902     }
903     trace_qxl_interface_update_area_complete(qxl->id, surface_id, dirty->left,
904             dirty->right, dirty->top, dirty->bottom);
905     trace_qxl_interface_update_area_complete_rest(qxl->id, num_updated_rects);
906     if (qxl->num_dirty_rects + num_updated_rects > QXL_NUM_DIRTY_RECTS) {
907         /*
908          * overflow - treat this as a full update. Not expected to be common.
909          */
910         trace_qxl_interface_update_area_complete_overflow(qxl->id,
911                                                           QXL_NUM_DIRTY_RECTS);
912         qxl->guest_primary.resized = 1;
913     }
914     if (qxl->guest_primary.resized) {
915         /*
916          * Don't bother copying or scheduling the bh since we will flip
917          * the whole area anyway on completion of the update_area async call
918          */
919         qemu_mutex_unlock(&qxl->ssd.lock);
920         return;
921     }
922     qxl_i = qxl->num_dirty_rects;
923     for (i = 0; i < num_updated_rects; i++) {
924         qxl->dirty[qxl_i++] = dirty[i];
925     }
926     qxl->num_dirty_rects += num_updated_rects;
927     trace_qxl_interface_update_area_complete_schedule_bh(qxl->id,
928                                                          qxl->num_dirty_rects);
929     qemu_bh_schedule(qxl->update_area_bh);
930     qemu_mutex_unlock(&qxl->ssd.lock);
931 }
932 
933 /* called from spice server thread context only */
934 static void interface_async_complete(QXLInstance *sin, uint64_t cookie_token)
935 {
936     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
937     QXLCookie *cookie = (QXLCookie *)(uintptr_t)cookie_token;
938 
939     switch (cookie->type) {
940     case QXL_COOKIE_TYPE_IO:
941         interface_async_complete_io(qxl, cookie);
942         g_free(cookie);
943         break;
944     case QXL_COOKIE_TYPE_RENDER_UPDATE_AREA:
945         qxl_render_update_area_done(qxl, cookie);
946         break;
947     case QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG:
948         break;
949     default:
950         fprintf(stderr, "qxl: %s: unexpected cookie type %d\n",
951                 __func__, cookie->type);
952         g_free(cookie);
953     }
954 }
955 
956 /* called from spice server thread context only */
957 static void interface_set_client_capabilities(QXLInstance *sin,
958                                               uint8_t client_present,
959                                               uint8_t caps[58])
960 {
961     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
962 
963     if (qxl->revision < 4) {
964         trace_qxl_set_client_capabilities_unsupported_by_revision(qxl->id,
965                                                               qxl->revision);
966         return;
967     }
968 
969     if (runstate_check(RUN_STATE_INMIGRATE) ||
970         runstate_check(RUN_STATE_POSTMIGRATE)) {
971         return;
972     }
973 
974     qxl->shadow_rom.client_present = client_present;
975     memcpy(qxl->shadow_rom.client_capabilities, caps,
976            sizeof(qxl->shadow_rom.client_capabilities));
977     qxl->rom->client_present = client_present;
978     memcpy(qxl->rom->client_capabilities, caps,
979            sizeof(qxl->rom->client_capabilities));
980     qxl_rom_set_dirty(qxl);
981 
982     qxl_send_events(qxl, QXL_INTERRUPT_CLIENT);
983 }
984 
985 static uint32_t qxl_crc32(const uint8_t *p, unsigned len)
986 {
987     /*
988      * zlib xors the seed with 0xffffffff, and xors the result
989      * again with 0xffffffff; Both are not done with linux's crc32,
990      * which we want to be compatible with, so undo that.
991      */
992     return crc32(0xffffffff, p, len) ^ 0xffffffff;
993 }
994 
995 /* called from main context only */
996 static int interface_client_monitors_config(QXLInstance *sin,
997                                         VDAgentMonitorsConfig *monitors_config)
998 {
999     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
1000     QXLRom *rom = memory_region_get_ram_ptr(&qxl->rom_bar);
1001     int i;
1002     unsigned max_outputs = ARRAY_SIZE(rom->client_monitors_config.heads);
1003 
1004     if (qxl->revision < 4) {
1005         trace_qxl_client_monitors_config_unsupported_by_device(qxl->id,
1006                                                                qxl->revision);
1007         return 0;
1008     }
1009     /*
1010      * Older windows drivers set int_mask to 0 when their ISR is called,
1011      * then later set it to ~0. So it doesn't relate to the actual interrupts
1012      * handled. However, they are old, so clearly they don't support this
1013      * interrupt
1014      */
1015     if (qxl->ram->int_mask == 0 || qxl->ram->int_mask == ~0 ||
1016         !(qxl->ram->int_mask & QXL_INTERRUPT_CLIENT_MONITORS_CONFIG)) {
1017         trace_qxl_client_monitors_config_unsupported_by_guest(qxl->id,
1018                                                             qxl->ram->int_mask,
1019                                                             monitors_config);
1020         return 0;
1021     }
1022     if (!monitors_config) {
1023         return 1;
1024     }
1025 
1026 #if SPICE_SERVER_VERSION >= 0x000c06 /* release 0.12.6 */
1027     /* limit number of outputs based on setting limit */
1028     if (qxl->max_outputs && qxl->max_outputs <= max_outputs) {
1029         max_outputs = qxl->max_outputs;
1030     }
1031 #endif
1032 
1033     memset(&rom->client_monitors_config, 0,
1034            sizeof(rom->client_monitors_config));
1035     rom->client_monitors_config.count = monitors_config->num_of_monitors;
1036     /* monitors_config->flags ignored */
1037     if (rom->client_monitors_config.count >= max_outputs) {
1038         trace_qxl_client_monitors_config_capped(qxl->id,
1039                                 monitors_config->num_of_monitors,
1040                                 max_outputs);
1041         rom->client_monitors_config.count = max_outputs;
1042     }
1043     for (i = 0 ; i < rom->client_monitors_config.count ; ++i) {
1044         VDAgentMonConfig *monitor = &monitors_config->monitors[i];
1045         QXLURect *rect = &rom->client_monitors_config.heads[i];
1046         /* monitor->depth ignored */
1047         rect->left = monitor->x;
1048         rect->top = monitor->y;
1049         rect->right = monitor->x + monitor->width;
1050         rect->bottom = monitor->y + monitor->height;
1051     }
1052     rom->client_monitors_config_crc = qxl_crc32(
1053             (const uint8_t *)&rom->client_monitors_config,
1054             sizeof(rom->client_monitors_config));
1055     trace_qxl_client_monitors_config_crc(qxl->id,
1056             sizeof(rom->client_monitors_config),
1057             rom->client_monitors_config_crc);
1058 
1059     trace_qxl_interrupt_client_monitors_config(qxl->id,
1060                         rom->client_monitors_config.count,
1061                         rom->client_monitors_config.heads);
1062     qxl_send_events(qxl, QXL_INTERRUPT_CLIENT_MONITORS_CONFIG);
1063     return 1;
1064 }
1065 
1066 static const QXLInterface qxl_interface = {
1067     .base.type               = SPICE_INTERFACE_QXL,
1068     .base.description        = "qxl gpu",
1069     .base.major_version      = SPICE_INTERFACE_QXL_MAJOR,
1070     .base.minor_version      = SPICE_INTERFACE_QXL_MINOR,
1071 
1072     .attache_worker          = interface_attach_worker,
1073     .set_compression_level   = interface_set_compression_level,
1074 #if SPICE_NEEDS_SET_MM_TIME
1075     .set_mm_time             = interface_set_mm_time,
1076 #endif
1077     .get_init_info           = interface_get_init_info,
1078 
1079     /* the callbacks below are called from spice server thread context */
1080     .get_command             = interface_get_command,
1081     .req_cmd_notification    = interface_req_cmd_notification,
1082     .release_resource        = interface_release_resource,
1083     .get_cursor_command      = interface_get_cursor_command,
1084     .req_cursor_notification = interface_req_cursor_notification,
1085     .notify_update           = interface_notify_update,
1086     .flush_resources         = interface_flush_resources,
1087     .async_complete          = interface_async_complete,
1088     .update_area_complete    = interface_update_area_complete,
1089     .set_client_capabilities = interface_set_client_capabilities,
1090     .client_monitors_config = interface_client_monitors_config,
1091 };
1092 
1093 static const GraphicHwOps qxl_ops = {
1094     .gfx_update  = qxl_hw_update,
1095 };
1096 
1097 static void qxl_enter_vga_mode(PCIQXLDevice *d)
1098 {
1099     if (d->mode == QXL_MODE_VGA) {
1100         return;
1101     }
1102     trace_qxl_enter_vga_mode(d->id);
1103 #if SPICE_SERVER_VERSION >= 0x000c03 /* release 0.12.3 */
1104     spice_qxl_driver_unload(&d->ssd.qxl);
1105 #endif
1106     graphic_console_set_hwops(d->ssd.dcl.con, d->vga.hw_ops, &d->vga);
1107     update_displaychangelistener(&d->ssd.dcl, GUI_REFRESH_INTERVAL_DEFAULT);
1108     qemu_spice_create_host_primary(&d->ssd);
1109     d->mode = QXL_MODE_VGA;
1110     vga_dirty_log_start(&d->vga);
1111     graphic_hw_update(d->vga.con);
1112 }
1113 
1114 static void qxl_exit_vga_mode(PCIQXLDevice *d)
1115 {
1116     if (d->mode != QXL_MODE_VGA) {
1117         return;
1118     }
1119     trace_qxl_exit_vga_mode(d->id);
1120     graphic_console_set_hwops(d->ssd.dcl.con, &qxl_ops, d);
1121     update_displaychangelistener(&d->ssd.dcl, GUI_REFRESH_INTERVAL_IDLE);
1122     vga_dirty_log_stop(&d->vga);
1123     qxl_destroy_primary(d, QXL_SYNC);
1124 }
1125 
1126 static void qxl_update_irq(PCIQXLDevice *d)
1127 {
1128     uint32_t pending = le32_to_cpu(d->ram->int_pending);
1129     uint32_t mask    = le32_to_cpu(d->ram->int_mask);
1130     int level = !!(pending & mask);
1131     pci_set_irq(&d->pci, level);
1132     qxl_ring_set_dirty(d);
1133 }
1134 
1135 static void qxl_check_state(PCIQXLDevice *d)
1136 {
1137     QXLRam *ram = d->ram;
1138     int spice_display_running = qemu_spice_display_is_running(&d->ssd);
1139 
1140     assert(!spice_display_running || SPICE_RING_IS_EMPTY(&ram->cmd_ring));
1141     assert(!spice_display_running || SPICE_RING_IS_EMPTY(&ram->cursor_ring));
1142 }
1143 
1144 static void qxl_reset_state(PCIQXLDevice *d)
1145 {
1146     QXLRom *rom = d->rom;
1147 
1148     qxl_check_state(d);
1149     d->shadow_rom.update_id = cpu_to_le32(0);
1150     *rom = d->shadow_rom;
1151     qxl_rom_set_dirty(d);
1152     init_qxl_ram(d);
1153     d->num_free_res = 0;
1154     d->last_release = NULL;
1155     memset(&d->ssd.dirty, 0, sizeof(d->ssd.dirty));
1156     qxl_update_irq(d);
1157 }
1158 
1159 static void qxl_soft_reset(PCIQXLDevice *d)
1160 {
1161     trace_qxl_soft_reset(d->id);
1162     qxl_check_state(d);
1163     qxl_clear_guest_bug(d);
1164     qemu_mutex_lock(&d->async_lock);
1165     d->current_async = QXL_UNDEFINED_IO;
1166     qemu_mutex_unlock(&d->async_lock);
1167 
1168     if (d->id == 0) {
1169         qxl_enter_vga_mode(d);
1170     } else {
1171         d->mode = QXL_MODE_UNDEFINED;
1172     }
1173 }
1174 
1175 static void qxl_hard_reset(PCIQXLDevice *d, int loadvm)
1176 {
1177     bool startstop = qemu_spice_display_is_running(&d->ssd);
1178 
1179     trace_qxl_hard_reset(d->id, loadvm);
1180 
1181     if (startstop) {
1182         qemu_spice_display_stop();
1183     }
1184 
1185     qxl_spice_reset_cursor(d);
1186     qxl_spice_reset_image_cache(d);
1187     qxl_reset_surfaces(d);
1188     qxl_reset_memslots(d);
1189 
1190     /* pre loadvm reset must not touch QXLRam.  This lives in
1191      * device memory, is migrated together with RAM and thus
1192      * already loaded at this point */
1193     if (!loadvm) {
1194         qxl_reset_state(d);
1195     }
1196     qemu_spice_create_host_memslot(&d->ssd);
1197     qxl_soft_reset(d);
1198 
1199     if (startstop) {
1200         qemu_spice_display_start();
1201     }
1202 }
1203 
1204 static void qxl_reset_handler(DeviceState *dev)
1205 {
1206     PCIQXLDevice *d = PCI_QXL(PCI_DEVICE(dev));
1207 
1208     qxl_hard_reset(d, 0);
1209 }
1210 
1211 static void qxl_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
1212 {
1213     VGACommonState *vga = opaque;
1214     PCIQXLDevice *qxl = container_of(vga, PCIQXLDevice, vga);
1215 
1216     trace_qxl_io_write_vga(qxl->id, qxl_mode_to_string(qxl->mode), addr, val);
1217     if (qxl->mode != QXL_MODE_VGA) {
1218         qxl_destroy_primary(qxl, QXL_SYNC);
1219         qxl_soft_reset(qxl);
1220     }
1221     vga_ioport_write(opaque, addr, val);
1222 }
1223 
1224 static const MemoryRegionPortio qxl_vga_portio_list[] = {
1225     { 0x04,  2, 1, .read  = vga_ioport_read,
1226                    .write = qxl_vga_ioport_write }, /* 3b4 */
1227     { 0x0a,  1, 1, .read  = vga_ioport_read,
1228                    .write = qxl_vga_ioport_write }, /* 3ba */
1229     { 0x10, 16, 1, .read  = vga_ioport_read,
1230                    .write = qxl_vga_ioport_write }, /* 3c0 */
1231     { 0x24,  2, 1, .read  = vga_ioport_read,
1232                    .write = qxl_vga_ioport_write }, /* 3d4 */
1233     { 0x2a,  1, 1, .read  = vga_ioport_read,
1234                    .write = qxl_vga_ioport_write }, /* 3da */
1235     PORTIO_END_OF_LIST(),
1236 };
1237 
1238 static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
1239                            qxl_async_io async)
1240 {
1241     static const int regions[] = {
1242         QXL_RAM_RANGE_INDEX,
1243         QXL_VRAM_RANGE_INDEX,
1244         QXL_VRAM64_RANGE_INDEX,
1245     };
1246     uint64_t guest_start;
1247     uint64_t guest_end;
1248     int pci_region;
1249     pcibus_t pci_start;
1250     pcibus_t pci_end;
1251     MemoryRegion *mr;
1252     intptr_t virt_start;
1253     QXLDevMemSlot memslot;
1254     int i;
1255 
1256     guest_start = le64_to_cpu(d->guest_slots[slot_id].slot.mem_start);
1257     guest_end   = le64_to_cpu(d->guest_slots[slot_id].slot.mem_end);
1258 
1259     trace_qxl_memslot_add_guest(d->id, slot_id, guest_start, guest_end);
1260 
1261     if (slot_id >= NUM_MEMSLOTS) {
1262         qxl_set_guest_bug(d, "%s: slot_id >= NUM_MEMSLOTS %d >= %d", __func__,
1263                       slot_id, NUM_MEMSLOTS);
1264         return 1;
1265     }
1266     if (guest_start > guest_end) {
1267         qxl_set_guest_bug(d, "%s: guest_start > guest_end 0x%" PRIx64
1268                          " > 0x%" PRIx64, __func__, guest_start, guest_end);
1269         return 1;
1270     }
1271 
1272     for (i = 0; i < ARRAY_SIZE(regions); i++) {
1273         pci_region = regions[i];
1274         pci_start = d->pci.io_regions[pci_region].addr;
1275         pci_end = pci_start + d->pci.io_regions[pci_region].size;
1276         /* mapped? */
1277         if (pci_start == -1) {
1278             continue;
1279         }
1280         /* start address in range ? */
1281         if (guest_start < pci_start || guest_start > pci_end) {
1282             continue;
1283         }
1284         /* end address in range ? */
1285         if (guest_end > pci_end) {
1286             continue;
1287         }
1288         /* passed */
1289         break;
1290     }
1291     if (i == ARRAY_SIZE(regions)) {
1292         qxl_set_guest_bug(d, "%s: finished loop without match", __func__);
1293         return 1;
1294     }
1295 
1296     switch (pci_region) {
1297     case QXL_RAM_RANGE_INDEX:
1298         mr = &d->vga.vram;
1299         break;
1300     case QXL_VRAM_RANGE_INDEX:
1301     case 4 /* vram 64bit */:
1302         mr = &d->vram_bar;
1303         break;
1304     default:
1305         /* should not happen */
1306         qxl_set_guest_bug(d, "%s: pci_region = %d", __func__, pci_region);
1307         return 1;
1308     }
1309 
1310     virt_start = (intptr_t)memory_region_get_ram_ptr(mr);
1311     memslot.slot_id = slot_id;
1312     memslot.slot_group_id = MEMSLOT_GROUP_GUEST; /* guest group */
1313     memslot.virt_start = virt_start + (guest_start - pci_start);
1314     memslot.virt_end   = virt_start + (guest_end   - pci_start);
1315     memslot.addr_delta = memslot.virt_start - delta;
1316     memslot.generation = d->rom->slot_generation = 0;
1317     qxl_rom_set_dirty(d);
1318 
1319     qemu_spice_add_memslot(&d->ssd, &memslot, async);
1320     d->guest_slots[slot_id].mr = mr;
1321     d->guest_slots[slot_id].offset = memslot.virt_start - virt_start;
1322     d->guest_slots[slot_id].size = memslot.virt_end - memslot.virt_start;
1323     d->guest_slots[slot_id].delta = delta;
1324     d->guest_slots[slot_id].active = 1;
1325     return 0;
1326 }
1327 
1328 static void qxl_del_memslot(PCIQXLDevice *d, uint32_t slot_id)
1329 {
1330     qemu_spice_del_memslot(&d->ssd, MEMSLOT_GROUP_HOST, slot_id);
1331     d->guest_slots[slot_id].active = 0;
1332 }
1333 
1334 static void qxl_reset_memslots(PCIQXLDevice *d)
1335 {
1336     qxl_spice_reset_memslots(d);
1337     memset(&d->guest_slots, 0, sizeof(d->guest_slots));
1338 }
1339 
1340 static void qxl_reset_surfaces(PCIQXLDevice *d)
1341 {
1342     trace_qxl_reset_surfaces(d->id);
1343     d->mode = QXL_MODE_UNDEFINED;
1344     qxl_spice_destroy_surfaces(d, QXL_SYNC);
1345 }
1346 
1347 /* can be also called from spice server thread context */
1348 static bool qxl_get_check_slot_offset(PCIQXLDevice *qxl, QXLPHYSICAL pqxl,
1349                                       uint32_t *s, uint64_t *o)
1350 {
1351     uint64_t phys   = le64_to_cpu(pqxl);
1352     uint32_t slot   = (phys >> (64 -  8)) & 0xff;
1353     uint64_t offset = phys & 0xffffffffffff;
1354 
1355     if (slot >= NUM_MEMSLOTS) {
1356         qxl_set_guest_bug(qxl, "slot too large %d >= %d", slot,
1357                           NUM_MEMSLOTS);
1358         return false;
1359     }
1360     if (!qxl->guest_slots[slot].active) {
1361         qxl_set_guest_bug(qxl, "inactive slot %d\n", slot);
1362         return false;
1363     }
1364     if (offset < qxl->guest_slots[slot].delta) {
1365         qxl_set_guest_bug(qxl,
1366                           "slot %d offset %"PRIu64" < delta %"PRIu64"\n",
1367                           slot, offset, qxl->guest_slots[slot].delta);
1368         return false;
1369     }
1370     offset -= qxl->guest_slots[slot].delta;
1371     if (offset > qxl->guest_slots[slot].size) {
1372         qxl_set_guest_bug(qxl,
1373                           "slot %d offset %"PRIu64" > size %"PRIu64"\n",
1374                           slot, offset, qxl->guest_slots[slot].size);
1375         return false;
1376     }
1377 
1378     *s = slot;
1379     *o = offset;
1380     return true;
1381 }
1382 
1383 /* can be also called from spice server thread context */
1384 void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id)
1385 {
1386     uint64_t offset;
1387     uint32_t slot;
1388     void *ptr;
1389 
1390     switch (group_id) {
1391     case MEMSLOT_GROUP_HOST:
1392         offset = le64_to_cpu(pqxl) & 0xffffffffffff;
1393         return (void *)(intptr_t)offset;
1394     case MEMSLOT_GROUP_GUEST:
1395         if (!qxl_get_check_slot_offset(qxl, pqxl, &slot, &offset)) {
1396             return NULL;
1397         }
1398         ptr = memory_region_get_ram_ptr(qxl->guest_slots[slot].mr);
1399         ptr += qxl->guest_slots[slot].offset;
1400         ptr += offset;
1401         return ptr;
1402     }
1403     return NULL;
1404 }
1405 
1406 static void qxl_create_guest_primary_complete(PCIQXLDevice *qxl)
1407 {
1408     /* for local rendering */
1409     qxl_render_resize(qxl);
1410 }
1411 
1412 static void qxl_create_guest_primary(PCIQXLDevice *qxl, int loadvm,
1413                                      qxl_async_io async)
1414 {
1415     QXLDevSurfaceCreate surface;
1416     QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
1417     uint32_t requested_height = le32_to_cpu(sc->height);
1418     int requested_stride = le32_to_cpu(sc->stride);
1419 
1420     if (requested_stride == INT32_MIN ||
1421         abs(requested_stride) * (uint64_t)requested_height
1422                                         > qxl->vgamem_size) {
1423         qxl_set_guest_bug(qxl, "%s: requested primary larger than framebuffer"
1424                                " stride %d x height %" PRIu32 " > %" PRIu32,
1425                                __func__, requested_stride, requested_height,
1426                                qxl->vgamem_size);
1427         return;
1428     }
1429 
1430     if (qxl->mode == QXL_MODE_NATIVE) {
1431         qxl_set_guest_bug(qxl, "%s: nop since already in QXL_MODE_NATIVE",
1432                       __func__);
1433     }
1434     qxl_exit_vga_mode(qxl);
1435 
1436     surface.format     = le32_to_cpu(sc->format);
1437     surface.height     = le32_to_cpu(sc->height);
1438     surface.mem        = le64_to_cpu(sc->mem);
1439     surface.position   = le32_to_cpu(sc->position);
1440     surface.stride     = le32_to_cpu(sc->stride);
1441     surface.width      = le32_to_cpu(sc->width);
1442     surface.type       = le32_to_cpu(sc->type);
1443     surface.flags      = le32_to_cpu(sc->flags);
1444     trace_qxl_create_guest_primary(qxl->id, sc->width, sc->height, sc->mem,
1445                                    sc->format, sc->position);
1446     trace_qxl_create_guest_primary_rest(qxl->id, sc->stride, sc->type,
1447                                         sc->flags);
1448 
1449     if ((surface.stride & 0x3) != 0) {
1450         qxl_set_guest_bug(qxl, "primary surface stride = %d %% 4 != 0",
1451                           surface.stride);
1452         return;
1453     }
1454 
1455     surface.mouse_mode = true;
1456     surface.group_id   = MEMSLOT_GROUP_GUEST;
1457     if (loadvm) {
1458         surface.flags |= QXL_SURF_FLAG_KEEP_DATA;
1459     }
1460 
1461     qxl->mode = QXL_MODE_NATIVE;
1462     qxl->cmdflags = 0;
1463     qemu_spice_create_primary_surface(&qxl->ssd, 0, &surface, async);
1464 
1465     if (async == QXL_SYNC) {
1466         qxl_create_guest_primary_complete(qxl);
1467     }
1468 }
1469 
1470 /* return 1 if surface destoy was initiated (in QXL_ASYNC case) or
1471  * done (in QXL_SYNC case), 0 otherwise. */
1472 static int qxl_destroy_primary(PCIQXLDevice *d, qxl_async_io async)
1473 {
1474     if (d->mode == QXL_MODE_UNDEFINED) {
1475         return 0;
1476     }
1477     trace_qxl_destroy_primary(d->id);
1478     d->mode = QXL_MODE_UNDEFINED;
1479     qemu_spice_destroy_primary_surface(&d->ssd, 0, async);
1480     qxl_spice_reset_cursor(d);
1481     return 1;
1482 }
1483 
1484 static void qxl_set_mode(PCIQXLDevice *d, unsigned int modenr, int loadvm)
1485 {
1486     pcibus_t start = d->pci.io_regions[QXL_RAM_RANGE_INDEX].addr;
1487     pcibus_t end   = d->pci.io_regions[QXL_RAM_RANGE_INDEX].size + start;
1488     QXLMode *mode = d->modes->modes + modenr;
1489     uint64_t devmem = d->pci.io_regions[QXL_RAM_RANGE_INDEX].addr;
1490     QXLMemSlot slot = {
1491         .mem_start = start,
1492         .mem_end = end
1493     };
1494 
1495     if (modenr >= d->modes->n_modes) {
1496         qxl_set_guest_bug(d, "mode number out of range");
1497         return;
1498     }
1499 
1500     QXLSurfaceCreate surface = {
1501         .width      = mode->x_res,
1502         .height     = mode->y_res,
1503         .stride     = -mode->x_res * 4,
1504         .format     = SPICE_SURFACE_FMT_32_xRGB,
1505         .flags      = loadvm ? QXL_SURF_FLAG_KEEP_DATA : 0,
1506         .mouse_mode = true,
1507         .mem        = devmem + d->shadow_rom.draw_area_offset,
1508     };
1509 
1510     trace_qxl_set_mode(d->id, modenr, mode->x_res, mode->y_res, mode->bits,
1511                        devmem);
1512     if (!loadvm) {
1513         qxl_hard_reset(d, 0);
1514     }
1515 
1516     d->guest_slots[0].slot = slot;
1517     assert(qxl_add_memslot(d, 0, devmem, QXL_SYNC) == 0);
1518 
1519     d->guest_primary.surface = surface;
1520     qxl_create_guest_primary(d, 0, QXL_SYNC);
1521 
1522     d->mode = QXL_MODE_COMPAT;
1523     d->cmdflags = QXL_COMMAND_FLAG_COMPAT;
1524     if (mode->bits == 16) {
1525         d->cmdflags |= QXL_COMMAND_FLAG_COMPAT_16BPP;
1526     }
1527     d->shadow_rom.mode = cpu_to_le32(modenr);
1528     d->rom->mode = cpu_to_le32(modenr);
1529     qxl_rom_set_dirty(d);
1530 }
1531 
1532 static void ioport_write(void *opaque, hwaddr addr,
1533                          uint64_t val, unsigned size)
1534 {
1535     PCIQXLDevice *d = opaque;
1536     uint32_t io_port = addr;
1537     qxl_async_io async = QXL_SYNC;
1538     uint32_t orig_io_port = io_port;
1539 
1540     if (d->guest_bug && io_port != QXL_IO_RESET) {
1541         return;
1542     }
1543 
1544     if (d->revision <= QXL_REVISION_STABLE_V10 &&
1545         io_port > QXL_IO_FLUSH_RELEASE) {
1546         qxl_set_guest_bug(d, "unsupported io %d for revision %d\n",
1547             io_port, d->revision);
1548         return;
1549     }
1550 
1551     switch (io_port) {
1552     case QXL_IO_RESET:
1553     case QXL_IO_SET_MODE:
1554     case QXL_IO_MEMSLOT_ADD:
1555     case QXL_IO_MEMSLOT_DEL:
1556     case QXL_IO_CREATE_PRIMARY:
1557     case QXL_IO_UPDATE_IRQ:
1558     case QXL_IO_LOG:
1559     case QXL_IO_MEMSLOT_ADD_ASYNC:
1560     case QXL_IO_CREATE_PRIMARY_ASYNC:
1561         break;
1562     default:
1563         if (d->mode != QXL_MODE_VGA) {
1564             break;
1565         }
1566         trace_qxl_io_unexpected_vga_mode(d->id,
1567             addr, val, io_port_to_string(io_port));
1568         /* be nice to buggy guest drivers */
1569         if (io_port >= QXL_IO_UPDATE_AREA_ASYNC &&
1570             io_port < QXL_IO_RANGE_SIZE) {
1571             qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
1572         }
1573         return;
1574     }
1575 
1576     /* we change the io_port to avoid ifdeffery in the main switch */
1577     orig_io_port = io_port;
1578     switch (io_port) {
1579     case QXL_IO_UPDATE_AREA_ASYNC:
1580         io_port = QXL_IO_UPDATE_AREA;
1581         goto async_common;
1582     case QXL_IO_MEMSLOT_ADD_ASYNC:
1583         io_port = QXL_IO_MEMSLOT_ADD;
1584         goto async_common;
1585     case QXL_IO_CREATE_PRIMARY_ASYNC:
1586         io_port = QXL_IO_CREATE_PRIMARY;
1587         goto async_common;
1588     case QXL_IO_DESTROY_PRIMARY_ASYNC:
1589         io_port = QXL_IO_DESTROY_PRIMARY;
1590         goto async_common;
1591     case QXL_IO_DESTROY_SURFACE_ASYNC:
1592         io_port = QXL_IO_DESTROY_SURFACE_WAIT;
1593         goto async_common;
1594     case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
1595         io_port = QXL_IO_DESTROY_ALL_SURFACES;
1596         goto async_common;
1597     case QXL_IO_FLUSH_SURFACES_ASYNC:
1598     case QXL_IO_MONITORS_CONFIG_ASYNC:
1599 async_common:
1600         async = QXL_ASYNC;
1601         qemu_mutex_lock(&d->async_lock);
1602         if (d->current_async != QXL_UNDEFINED_IO) {
1603             qxl_set_guest_bug(d, "%d async started before last (%d) complete",
1604                 io_port, d->current_async);
1605             qemu_mutex_unlock(&d->async_lock);
1606             return;
1607         }
1608         d->current_async = orig_io_port;
1609         qemu_mutex_unlock(&d->async_lock);
1610         break;
1611     default:
1612         break;
1613     }
1614     trace_qxl_io_write(d->id, qxl_mode_to_string(d->mode),
1615                        addr, io_port_to_string(addr),
1616                        val, size, async);
1617 
1618     switch (io_port) {
1619     case QXL_IO_UPDATE_AREA:
1620     {
1621         QXLCookie *cookie = NULL;
1622         QXLRect update = d->ram->update_area;
1623 
1624         if (d->ram->update_surface > d->ssd.num_surfaces) {
1625             qxl_set_guest_bug(d, "QXL_IO_UPDATE_AREA: invalid surface id %d\n",
1626                               d->ram->update_surface);
1627             break;
1628         }
1629         if (update.left >= update.right || update.top >= update.bottom ||
1630             update.left < 0 || update.top < 0) {
1631             qxl_set_guest_bug(d,
1632                     "QXL_IO_UPDATE_AREA: invalid area (%ux%u)x(%ux%u)\n",
1633                     update.left, update.top, update.right, update.bottom);
1634             if (update.left == update.right || update.top == update.bottom) {
1635                 /* old drivers may provide empty area, keep going */
1636                 qxl_clear_guest_bug(d);
1637                 goto cancel_async;
1638             }
1639             break;
1640         }
1641         if (async == QXL_ASYNC) {
1642             cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
1643                                     QXL_IO_UPDATE_AREA_ASYNC);
1644             cookie->u.area = update;
1645         }
1646         qxl_spice_update_area(d, d->ram->update_surface,
1647                               cookie ? &cookie->u.area : &update,
1648                               NULL, 0, 0, async, cookie);
1649         break;
1650     }
1651     case QXL_IO_NOTIFY_CMD:
1652         qemu_spice_wakeup(&d->ssd);
1653         break;
1654     case QXL_IO_NOTIFY_CURSOR:
1655         qemu_spice_wakeup(&d->ssd);
1656         break;
1657     case QXL_IO_UPDATE_IRQ:
1658         qxl_update_irq(d);
1659         break;
1660     case QXL_IO_NOTIFY_OOM:
1661         if (!SPICE_RING_IS_EMPTY(&d->ram->release_ring)) {
1662             break;
1663         }
1664         d->oom_running = 1;
1665         qxl_spice_oom(d);
1666         d->oom_running = 0;
1667         break;
1668     case QXL_IO_SET_MODE:
1669         qxl_set_mode(d, val, 0);
1670         break;
1671     case QXL_IO_LOG:
1672         trace_qxl_io_log(d->id, d->ram->log_buf);
1673         if (d->guestdebug) {
1674             fprintf(stderr, "qxl/guest-%d: %" PRId64 ": %s", d->id,
1675                     qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), d->ram->log_buf);
1676         }
1677         break;
1678     case QXL_IO_RESET:
1679         qxl_hard_reset(d, 0);
1680         break;
1681     case QXL_IO_MEMSLOT_ADD:
1682         if (val >= NUM_MEMSLOTS) {
1683             qxl_set_guest_bug(d, "QXL_IO_MEMSLOT_ADD: val out of range");
1684             break;
1685         }
1686         if (d->guest_slots[val].active) {
1687             qxl_set_guest_bug(d,
1688                         "QXL_IO_MEMSLOT_ADD: memory slot already active");
1689             break;
1690         }
1691         d->guest_slots[val].slot = d->ram->mem_slot;
1692         qxl_add_memslot(d, val, 0, async);
1693         break;
1694     case QXL_IO_MEMSLOT_DEL:
1695         if (val >= NUM_MEMSLOTS) {
1696             qxl_set_guest_bug(d, "QXL_IO_MEMSLOT_DEL: val out of range");
1697             break;
1698         }
1699         qxl_del_memslot(d, val);
1700         break;
1701     case QXL_IO_CREATE_PRIMARY:
1702         if (val != 0) {
1703             qxl_set_guest_bug(d, "QXL_IO_CREATE_PRIMARY (async=%d): val != 0",
1704                           async);
1705             goto cancel_async;
1706         }
1707         d->guest_primary.surface = d->ram->create_surface;
1708         qxl_create_guest_primary(d, 0, async);
1709         break;
1710     case QXL_IO_DESTROY_PRIMARY:
1711         if (val != 0) {
1712             qxl_set_guest_bug(d, "QXL_IO_DESTROY_PRIMARY (async=%d): val != 0",
1713                           async);
1714             goto cancel_async;
1715         }
1716         if (!qxl_destroy_primary(d, async)) {
1717             trace_qxl_io_destroy_primary_ignored(d->id,
1718                                                  qxl_mode_to_string(d->mode));
1719             goto cancel_async;
1720         }
1721         break;
1722     case QXL_IO_DESTROY_SURFACE_WAIT:
1723         if (val >= d->ssd.num_surfaces) {
1724             qxl_set_guest_bug(d, "QXL_IO_DESTROY_SURFACE (async=%d):"
1725                              "%" PRIu64 " >= NUM_SURFACES", async, val);
1726             goto cancel_async;
1727         }
1728         qxl_spice_destroy_surface_wait(d, val, async);
1729         break;
1730     case QXL_IO_FLUSH_RELEASE: {
1731         QXLReleaseRing *ring = &d->ram->release_ring;
1732         if (ring->prod - ring->cons + 1 == ring->num_items) {
1733             fprintf(stderr,
1734                 "ERROR: no flush, full release ring [p%d,%dc]\n",
1735                 ring->prod, ring->cons);
1736         }
1737         qxl_push_free_res(d, 1 /* flush */);
1738         break;
1739     }
1740     case QXL_IO_FLUSH_SURFACES_ASYNC:
1741         qxl_spice_flush_surfaces_async(d);
1742         break;
1743     case QXL_IO_DESTROY_ALL_SURFACES:
1744         d->mode = QXL_MODE_UNDEFINED;
1745         qxl_spice_destroy_surfaces(d, async);
1746         break;
1747     case QXL_IO_MONITORS_CONFIG_ASYNC:
1748         qxl_spice_monitors_config_async(d, 0);
1749         break;
1750     default:
1751         qxl_set_guest_bug(d, "%s: unexpected ioport=0x%x\n", __func__, io_port);
1752     }
1753     return;
1754 cancel_async:
1755     if (async) {
1756         qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
1757         qemu_mutex_lock(&d->async_lock);
1758         d->current_async = QXL_UNDEFINED_IO;
1759         qemu_mutex_unlock(&d->async_lock);
1760     }
1761 }
1762 
1763 static uint64_t ioport_read(void *opaque, hwaddr addr,
1764                             unsigned size)
1765 {
1766     PCIQXLDevice *qxl = opaque;
1767 
1768     trace_qxl_io_read_unexpected(qxl->id);
1769     return 0xff;
1770 }
1771 
1772 static const MemoryRegionOps qxl_io_ops = {
1773     .read = ioport_read,
1774     .write = ioport_write,
1775     .valid = {
1776         .min_access_size = 1,
1777         .max_access_size = 1,
1778     },
1779 };
1780 
1781 static void qxl_update_irq_bh(void *opaque)
1782 {
1783     PCIQXLDevice *d = opaque;
1784     qxl_update_irq(d);
1785 }
1786 
1787 static void qxl_send_events(PCIQXLDevice *d, uint32_t events)
1788 {
1789     uint32_t old_pending;
1790     uint32_t le_events = cpu_to_le32(events);
1791 
1792     trace_qxl_send_events(d->id, events);
1793     if (!qemu_spice_display_is_running(&d->ssd)) {
1794         /* spice-server tracks guest running state and should not do this */
1795         fprintf(stderr, "%s: spice-server bug: guest stopped, ignoring\n",
1796                 __func__);
1797         trace_qxl_send_events_vm_stopped(d->id, events);
1798         return;
1799     }
1800     old_pending = atomic_fetch_or(&d->ram->int_pending, le_events);
1801     if ((old_pending & le_events) == le_events) {
1802         return;
1803     }
1804     qemu_bh_schedule(d->update_irq);
1805 }
1806 
1807 /* graphics console */
1808 
1809 static void qxl_hw_update(void *opaque)
1810 {
1811     PCIQXLDevice *qxl = opaque;
1812 
1813     qxl_render_update(qxl);
1814 }
1815 
1816 static void qxl_dirty_one_surface(PCIQXLDevice *qxl, QXLPHYSICAL pqxl,
1817                                   uint32_t height, int32_t stride)
1818 {
1819     uint64_t offset, size;
1820     uint32_t slot;
1821     bool rc;
1822 
1823     rc = qxl_get_check_slot_offset(qxl, pqxl, &slot, &offset);
1824     assert(rc == true);
1825     size = (uint64_t)height * abs(stride);
1826     trace_qxl_surfaces_dirty(qxl->id, offset, size);
1827     qxl_set_dirty(qxl->guest_slots[slot].mr,
1828                   qxl->guest_slots[slot].offset + offset,
1829                   qxl->guest_slots[slot].offset + offset + size);
1830 }
1831 
1832 static void qxl_dirty_surfaces(PCIQXLDevice *qxl)
1833 {
1834     int i;
1835 
1836     if (qxl->mode != QXL_MODE_NATIVE && qxl->mode != QXL_MODE_COMPAT) {
1837         return;
1838     }
1839 
1840     /* dirty the primary surface */
1841     qxl_dirty_one_surface(qxl, qxl->guest_primary.surface.mem,
1842                           qxl->guest_primary.surface.height,
1843                           qxl->guest_primary.surface.stride);
1844 
1845     /* dirty the off-screen surfaces */
1846     for (i = 0; i < qxl->ssd.num_surfaces; i++) {
1847         QXLSurfaceCmd *cmd;
1848 
1849         if (qxl->guest_surfaces.cmds[i] == 0) {
1850             continue;
1851         }
1852 
1853         cmd = qxl_phys2virt(qxl, qxl->guest_surfaces.cmds[i],
1854                             MEMSLOT_GROUP_GUEST);
1855         assert(cmd);
1856         assert(cmd->type == QXL_SURFACE_CMD_CREATE);
1857         qxl_dirty_one_surface(qxl, cmd->u.surface_create.data,
1858                               cmd->u.surface_create.height,
1859                               cmd->u.surface_create.stride);
1860     }
1861 }
1862 
1863 static void qxl_vm_change_state_handler(void *opaque, int running,
1864                                         RunState state)
1865 {
1866     PCIQXLDevice *qxl = opaque;
1867 
1868     if (running) {
1869         /*
1870          * if qxl_send_events was called from spice server context before
1871          * migration ended, qxl_update_irq for these events might not have been
1872          * called
1873          */
1874          qxl_update_irq(qxl);
1875     } else {
1876         /* make sure surfaces are saved before migration */
1877         qxl_dirty_surfaces(qxl);
1878     }
1879 }
1880 
1881 /* display change listener */
1882 
1883 static void display_update(DisplayChangeListener *dcl,
1884                            int x, int y, int w, int h)
1885 {
1886     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1887 
1888     if (qxl->mode == QXL_MODE_VGA) {
1889         qemu_spice_display_update(&qxl->ssd, x, y, w, h);
1890     }
1891 }
1892 
1893 static void display_switch(DisplayChangeListener *dcl,
1894                            struct DisplaySurface *surface)
1895 {
1896     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1897 
1898     qxl->ssd.ds = surface;
1899     if (qxl->mode == QXL_MODE_VGA) {
1900         qemu_spice_display_switch(&qxl->ssd, surface);
1901     }
1902 }
1903 
1904 static void display_refresh(DisplayChangeListener *dcl)
1905 {
1906     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1907 
1908     if (qxl->mode == QXL_MODE_VGA) {
1909         qemu_spice_display_refresh(&qxl->ssd);
1910     }
1911 }
1912 
1913 static DisplayChangeListenerOps display_listener_ops = {
1914     .dpy_name        = "spice/qxl",
1915     .dpy_gfx_update  = display_update,
1916     .dpy_gfx_switch  = display_switch,
1917     .dpy_refresh     = display_refresh,
1918 };
1919 
1920 static void qxl_init_ramsize(PCIQXLDevice *qxl)
1921 {
1922     /* vga mode framebuffer / primary surface (bar 0, first part) */
1923     if (qxl->vgamem_size_mb < 8) {
1924         qxl->vgamem_size_mb = 8;
1925     }
1926     /* XXX: we round vgamem_size_mb up to a nearest power of two and it must be
1927      * less than vga_common_init()'s maximum on qxl->vga.vram_size (512 now).
1928      */
1929     if (qxl->vgamem_size_mb > 256) {
1930         qxl->vgamem_size_mb = 256;
1931     }
1932     qxl->vgamem_size = qxl->vgamem_size_mb * 1024 * 1024;
1933 
1934     /* vga ram (bar 0, total) */
1935     if (qxl->ram_size_mb != -1) {
1936         qxl->vga.vram_size = qxl->ram_size_mb * 1024 * 1024;
1937     }
1938     if (qxl->vga.vram_size < qxl->vgamem_size * 2) {
1939         qxl->vga.vram_size = qxl->vgamem_size * 2;
1940     }
1941 
1942     /* vram32 (surfaces, 32bit, bar 1) */
1943     if (qxl->vram32_size_mb != -1) {
1944         qxl->vram32_size = qxl->vram32_size_mb * 1024 * 1024;
1945     }
1946     if (qxl->vram32_size < 4096) {
1947         qxl->vram32_size = 4096;
1948     }
1949 
1950     /* vram (surfaces, 64bit, bar 4+5) */
1951     if (qxl->vram_size_mb != -1) {
1952         qxl->vram_size = (uint64_t)qxl->vram_size_mb * 1024 * 1024;
1953     }
1954     if (qxl->vram_size < qxl->vram32_size) {
1955         qxl->vram_size = qxl->vram32_size;
1956     }
1957 
1958     if (qxl->revision == 1) {
1959         qxl->vram32_size = 4096;
1960         qxl->vram_size = 4096;
1961     }
1962     qxl->vgamem_size = pow2ceil(qxl->vgamem_size);
1963     qxl->vga.vram_size = pow2ceil(qxl->vga.vram_size);
1964     qxl->vram32_size = pow2ceil(qxl->vram32_size);
1965     qxl->vram_size = pow2ceil(qxl->vram_size);
1966 }
1967 
1968 static void qxl_realize_common(PCIQXLDevice *qxl, Error **errp)
1969 {
1970     uint8_t* config = qxl->pci.config;
1971     uint32_t pci_device_rev;
1972     uint32_t io_size;
1973 
1974     qxl->mode = QXL_MODE_UNDEFINED;
1975     qxl->generation = 1;
1976     qxl->num_memslots = NUM_MEMSLOTS;
1977     qemu_mutex_init(&qxl->track_lock);
1978     qemu_mutex_init(&qxl->async_lock);
1979     qxl->current_async = QXL_UNDEFINED_IO;
1980     qxl->guest_bug = 0;
1981 
1982     switch (qxl->revision) {
1983     case 1: /* spice 0.4 -- qxl-1 */
1984         pci_device_rev = QXL_REVISION_STABLE_V04;
1985         io_size = 8;
1986         break;
1987     case 2: /* spice 0.6 -- qxl-2 */
1988         pci_device_rev = QXL_REVISION_STABLE_V06;
1989         io_size = 16;
1990         break;
1991     case 3: /* qxl-3 */
1992         pci_device_rev = QXL_REVISION_STABLE_V10;
1993         io_size = 32; /* PCI region size must be pow2 */
1994         break;
1995     case 4: /* qxl-4 */
1996         pci_device_rev = QXL_REVISION_STABLE_V12;
1997         io_size = pow2ceil(QXL_IO_RANGE_SIZE);
1998         break;
1999     default:
2000         error_setg(errp, "Invalid revision %d for qxl device (max %d)",
2001                    qxl->revision, QXL_DEFAULT_REVISION);
2002         return;
2003     }
2004 
2005     pci_set_byte(&config[PCI_REVISION_ID], pci_device_rev);
2006     pci_set_byte(&config[PCI_INTERRUPT_PIN], 1);
2007 
2008     qxl->rom_size = qxl_rom_size();
2009     memory_region_init_ram(&qxl->rom_bar, OBJECT(qxl), "qxl.vrom",
2010                            qxl->rom_size, &error_fatal);
2011     vmstate_register_ram(&qxl->rom_bar, &qxl->pci.qdev);
2012     init_qxl_rom(qxl);
2013     init_qxl_ram(qxl);
2014 
2015     qxl->guest_surfaces.cmds = g_new0(QXLPHYSICAL, qxl->ssd.num_surfaces);
2016     memory_region_init_ram(&qxl->vram_bar, OBJECT(qxl), "qxl.vram",
2017                            qxl->vram_size, &error_fatal);
2018     vmstate_register_ram(&qxl->vram_bar, &qxl->pci.qdev);
2019     memory_region_init_alias(&qxl->vram32_bar, OBJECT(qxl), "qxl.vram32",
2020                              &qxl->vram_bar, 0, qxl->vram32_size);
2021 
2022     memory_region_init_io(&qxl->io_bar, OBJECT(qxl), &qxl_io_ops, qxl,
2023                           "qxl-ioports", io_size);
2024     if (qxl->id == 0) {
2025         vga_dirty_log_start(&qxl->vga);
2026     }
2027     memory_region_set_flush_coalesced(&qxl->io_bar);
2028 
2029 
2030     pci_register_bar(&qxl->pci, QXL_IO_RANGE_INDEX,
2031                      PCI_BASE_ADDRESS_SPACE_IO, &qxl->io_bar);
2032 
2033     pci_register_bar(&qxl->pci, QXL_ROM_RANGE_INDEX,
2034                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->rom_bar);
2035 
2036     pci_register_bar(&qxl->pci, QXL_RAM_RANGE_INDEX,
2037                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vga.vram);
2038 
2039     pci_register_bar(&qxl->pci, QXL_VRAM_RANGE_INDEX,
2040                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vram32_bar);
2041 
2042     if (qxl->vram32_size < qxl->vram_size) {
2043         /*
2044          * Make the 64bit vram bar show up only in case it is
2045          * configured to be larger than the 32bit vram bar.
2046          */
2047         pci_register_bar(&qxl->pci, QXL_VRAM64_RANGE_INDEX,
2048                          PCI_BASE_ADDRESS_SPACE_MEMORY |
2049                          PCI_BASE_ADDRESS_MEM_TYPE_64 |
2050                          PCI_BASE_ADDRESS_MEM_PREFETCH,
2051                          &qxl->vram_bar);
2052     }
2053 
2054     /* print pci bar details */
2055     dprint(qxl, 1, "ram/%s: %d MB [region 0]\n",
2056            qxl->id == 0 ? "pri" : "sec",
2057            qxl->vga.vram_size / (1024*1024));
2058     dprint(qxl, 1, "vram/32: %" PRIx64 "d MB [region 1]\n",
2059            qxl->vram32_size / (1024*1024));
2060     dprint(qxl, 1, "vram/64: %" PRIx64 "d MB %s\n",
2061            qxl->vram_size / (1024*1024),
2062            qxl->vram32_size < qxl->vram_size ? "[region 4]" : "[unmapped]");
2063 
2064     qxl->ssd.qxl.base.sif = &qxl_interface.base;
2065     if (qemu_spice_add_display_interface(&qxl->ssd.qxl, qxl->vga.con) != 0) {
2066         error_setg(errp, "qxl interface %d.%d not supported by spice-server",
2067                    SPICE_INTERFACE_QXL_MAJOR, SPICE_INTERFACE_QXL_MINOR);
2068         return;
2069     }
2070     qemu_add_vm_change_state_handler(qxl_vm_change_state_handler, qxl);
2071 
2072     qxl->update_irq = qemu_bh_new(qxl_update_irq_bh, qxl);
2073     qxl_reset_state(qxl);
2074 
2075     qxl->update_area_bh = qemu_bh_new(qxl_render_update_area_bh, qxl);
2076     qxl->ssd.cursor_bh = qemu_bh_new(qemu_spice_cursor_refresh_bh, &qxl->ssd);
2077 }
2078 
2079 static void qxl_realize_primary(PCIDevice *dev, Error **errp)
2080 {
2081     PCIQXLDevice *qxl = PCI_QXL(dev);
2082     VGACommonState *vga = &qxl->vga;
2083     Error *local_err = NULL;
2084 
2085     qxl->id = 0;
2086     qxl_init_ramsize(qxl);
2087     vga->vbe_size = qxl->vgamem_size;
2088     vga->vram_size_mb = qxl->vga.vram_size >> 20;
2089     vga_common_init(vga, OBJECT(dev), true);
2090     vga_init(vga, OBJECT(dev),
2091              pci_address_space(dev), pci_address_space_io(dev), false);
2092     portio_list_init(&qxl->vga_port_list, OBJECT(dev), qxl_vga_portio_list,
2093                      vga, "vga");
2094     portio_list_set_flush_coalesced(&qxl->vga_port_list);
2095     portio_list_add(&qxl->vga_port_list, pci_address_space_io(dev), 0x3b0);
2096 
2097     vga->con = graphic_console_init(DEVICE(dev), 0, &qxl_ops, qxl);
2098     qemu_spice_display_init_common(&qxl->ssd);
2099 
2100     qxl_realize_common(qxl, &local_err);
2101     if (local_err) {
2102         error_propagate(errp, local_err);
2103         return;
2104     }
2105 
2106     qxl->ssd.dcl.ops = &display_listener_ops;
2107     qxl->ssd.dcl.con = vga->con;
2108     register_displaychangelistener(&qxl->ssd.dcl);
2109 }
2110 
2111 static void qxl_realize_secondary(PCIDevice *dev, Error **errp)
2112 {
2113     static int device_id = 1;
2114     PCIQXLDevice *qxl = PCI_QXL(dev);
2115 
2116     qxl->id = device_id++;
2117     qxl_init_ramsize(qxl);
2118     memory_region_init_ram(&qxl->vga.vram, OBJECT(dev), "qxl.vgavram",
2119                            qxl->vga.vram_size, &error_fatal);
2120     vmstate_register_ram(&qxl->vga.vram, &qxl->pci.qdev);
2121     qxl->vga.vram_ptr = memory_region_get_ram_ptr(&qxl->vga.vram);
2122     qxl->vga.con = graphic_console_init(DEVICE(dev), 0, &qxl_ops, qxl);
2123 
2124     qxl_realize_common(qxl, errp);
2125 }
2126 
2127 static void qxl_pre_save(void *opaque)
2128 {
2129     PCIQXLDevice* d = opaque;
2130     uint8_t *ram_start = d->vga.vram_ptr;
2131 
2132     trace_qxl_pre_save(d->id);
2133     if (d->last_release == NULL) {
2134         d->last_release_offset = 0;
2135     } else {
2136         d->last_release_offset = (uint8_t *)d->last_release - ram_start;
2137     }
2138     assert(d->last_release_offset < d->vga.vram_size);
2139 }
2140 
2141 static int qxl_pre_load(void *opaque)
2142 {
2143     PCIQXLDevice* d = opaque;
2144 
2145     trace_qxl_pre_load(d->id);
2146     qxl_hard_reset(d, 1);
2147     qxl_exit_vga_mode(d);
2148     return 0;
2149 }
2150 
2151 static void qxl_create_memslots(PCIQXLDevice *d)
2152 {
2153     int i;
2154 
2155     for (i = 0; i < NUM_MEMSLOTS; i++) {
2156         if (!d->guest_slots[i].active) {
2157             continue;
2158         }
2159         qxl_add_memslot(d, i, 0, QXL_SYNC);
2160     }
2161 }
2162 
2163 static int qxl_post_load(void *opaque, int version)
2164 {
2165     PCIQXLDevice* d = opaque;
2166     uint8_t *ram_start = d->vga.vram_ptr;
2167     QXLCommandExt *cmds;
2168     int in, out, newmode;
2169 
2170     assert(d->last_release_offset < d->vga.vram_size);
2171     if (d->last_release_offset == 0) {
2172         d->last_release = NULL;
2173     } else {
2174         d->last_release = (QXLReleaseInfo *)(ram_start + d->last_release_offset);
2175     }
2176 
2177     d->modes = (QXLModes*)((uint8_t*)d->rom + d->rom->modes_offset);
2178 
2179     trace_qxl_post_load(d->id, qxl_mode_to_string(d->mode));
2180     newmode = d->mode;
2181     d->mode = QXL_MODE_UNDEFINED;
2182 
2183     switch (newmode) {
2184     case QXL_MODE_UNDEFINED:
2185         qxl_create_memslots(d);
2186         break;
2187     case QXL_MODE_VGA:
2188         qxl_create_memslots(d);
2189         qxl_enter_vga_mode(d);
2190         break;
2191     case QXL_MODE_NATIVE:
2192         qxl_create_memslots(d);
2193         qxl_create_guest_primary(d, 1, QXL_SYNC);
2194 
2195         /* replay surface-create and cursor-set commands */
2196         cmds = g_new0(QXLCommandExt, d->ssd.num_surfaces + 1);
2197         for (in = 0, out = 0; in < d->ssd.num_surfaces; in++) {
2198             if (d->guest_surfaces.cmds[in] == 0) {
2199                 continue;
2200             }
2201             cmds[out].cmd.data = d->guest_surfaces.cmds[in];
2202             cmds[out].cmd.type = QXL_CMD_SURFACE;
2203             cmds[out].group_id = MEMSLOT_GROUP_GUEST;
2204             out++;
2205         }
2206         if (d->guest_cursor) {
2207             cmds[out].cmd.data = d->guest_cursor;
2208             cmds[out].cmd.type = QXL_CMD_CURSOR;
2209             cmds[out].group_id = MEMSLOT_GROUP_GUEST;
2210             out++;
2211         }
2212         qxl_spice_loadvm_commands(d, cmds, out);
2213         g_free(cmds);
2214         if (d->guest_monitors_config) {
2215             qxl_spice_monitors_config_async(d, 1);
2216         }
2217         break;
2218     case QXL_MODE_COMPAT:
2219         /* note: no need to call qxl_create_memslots, qxl_set_mode
2220          * creates the mem slot. */
2221         qxl_set_mode(d, d->shadow_rom.mode, 1);
2222         break;
2223     }
2224     return 0;
2225 }
2226 
2227 #define QXL_SAVE_VERSION 21
2228 
2229 static bool qxl_monitors_config_needed(void *opaque)
2230 {
2231     PCIQXLDevice *qxl = opaque;
2232 
2233     return qxl->guest_monitors_config != 0;
2234 }
2235 
2236 
2237 static VMStateDescription qxl_memslot = {
2238     .name               = "qxl-memslot",
2239     .version_id         = QXL_SAVE_VERSION,
2240     .minimum_version_id = QXL_SAVE_VERSION,
2241     .fields = (VMStateField[]) {
2242         VMSTATE_UINT64(slot.mem_start, struct guest_slots),
2243         VMSTATE_UINT64(slot.mem_end,   struct guest_slots),
2244         VMSTATE_UINT32(active,         struct guest_slots),
2245         VMSTATE_END_OF_LIST()
2246     }
2247 };
2248 
2249 static VMStateDescription qxl_surface = {
2250     .name               = "qxl-surface",
2251     .version_id         = QXL_SAVE_VERSION,
2252     .minimum_version_id = QXL_SAVE_VERSION,
2253     .fields = (VMStateField[]) {
2254         VMSTATE_UINT32(width,      QXLSurfaceCreate),
2255         VMSTATE_UINT32(height,     QXLSurfaceCreate),
2256         VMSTATE_INT32(stride,      QXLSurfaceCreate),
2257         VMSTATE_UINT32(format,     QXLSurfaceCreate),
2258         VMSTATE_UINT32(position,   QXLSurfaceCreate),
2259         VMSTATE_UINT32(mouse_mode, QXLSurfaceCreate),
2260         VMSTATE_UINT32(flags,      QXLSurfaceCreate),
2261         VMSTATE_UINT32(type,       QXLSurfaceCreate),
2262         VMSTATE_UINT64(mem,        QXLSurfaceCreate),
2263         VMSTATE_END_OF_LIST()
2264     }
2265 };
2266 
2267 static VMStateDescription qxl_vmstate_monitors_config = {
2268     .name               = "qxl/monitors-config",
2269     .version_id         = 1,
2270     .minimum_version_id = 1,
2271     .needed = qxl_monitors_config_needed,
2272     .fields = (VMStateField[]) {
2273         VMSTATE_UINT64(guest_monitors_config, PCIQXLDevice),
2274         VMSTATE_END_OF_LIST()
2275     },
2276 };
2277 
2278 static VMStateDescription qxl_vmstate = {
2279     .name               = "qxl",
2280     .version_id         = QXL_SAVE_VERSION,
2281     .minimum_version_id = QXL_SAVE_VERSION,
2282     .pre_save           = qxl_pre_save,
2283     .pre_load           = qxl_pre_load,
2284     .post_load          = qxl_post_load,
2285     .fields = (VMStateField[]) {
2286         VMSTATE_PCI_DEVICE(pci, PCIQXLDevice),
2287         VMSTATE_STRUCT(vga, PCIQXLDevice, 0, vmstate_vga_common, VGACommonState),
2288         VMSTATE_UINT32(shadow_rom.mode, PCIQXLDevice),
2289         VMSTATE_UINT32(num_free_res, PCIQXLDevice),
2290         VMSTATE_UINT32(last_release_offset, PCIQXLDevice),
2291         VMSTATE_UINT32(mode, PCIQXLDevice),
2292         VMSTATE_UINT32(ssd.unique, PCIQXLDevice),
2293         VMSTATE_INT32_EQUAL(num_memslots, PCIQXLDevice),
2294         VMSTATE_STRUCT_ARRAY(guest_slots, PCIQXLDevice, NUM_MEMSLOTS, 0,
2295                              qxl_memslot, struct guest_slots),
2296         VMSTATE_STRUCT(guest_primary.surface, PCIQXLDevice, 0,
2297                        qxl_surface, QXLSurfaceCreate),
2298         VMSTATE_INT32_EQUAL(ssd.num_surfaces, PCIQXLDevice),
2299         VMSTATE_VARRAY_INT32(guest_surfaces.cmds, PCIQXLDevice,
2300                              ssd.num_surfaces, 0,
2301                              vmstate_info_uint64, uint64_t),
2302         VMSTATE_UINT64(guest_cursor, PCIQXLDevice),
2303         VMSTATE_END_OF_LIST()
2304     },
2305     .subsections = (const VMStateDescription*[]) {
2306         &qxl_vmstate_monitors_config,
2307         NULL
2308     }
2309 };
2310 
2311 static Property qxl_properties[] = {
2312         DEFINE_PROP_UINT32("ram_size", PCIQXLDevice, vga.vram_size,
2313                            64 * 1024 * 1024),
2314         DEFINE_PROP_UINT64("vram_size", PCIQXLDevice, vram32_size,
2315                            64 * 1024 * 1024),
2316         DEFINE_PROP_UINT32("revision", PCIQXLDevice, revision,
2317                            QXL_DEFAULT_REVISION),
2318         DEFINE_PROP_UINT32("debug", PCIQXLDevice, debug, 0),
2319         DEFINE_PROP_UINT32("guestdebug", PCIQXLDevice, guestdebug, 0),
2320         DEFINE_PROP_UINT32("cmdlog", PCIQXLDevice, cmdlog, 0),
2321         DEFINE_PROP_UINT32("ram_size_mb",  PCIQXLDevice, ram_size_mb, -1),
2322         DEFINE_PROP_UINT32("vram_size_mb", PCIQXLDevice, vram32_size_mb, -1),
2323         DEFINE_PROP_UINT32("vram64_size_mb", PCIQXLDevice, vram_size_mb, -1),
2324         DEFINE_PROP_UINT32("vgamem_mb", PCIQXLDevice, vgamem_size_mb, 16),
2325         DEFINE_PROP_INT32("surfaces", PCIQXLDevice, ssd.num_surfaces, 1024),
2326 #if SPICE_SERVER_VERSION >= 0x000c06 /* release 0.12.6 */
2327         DEFINE_PROP_UINT16("max_outputs", PCIQXLDevice, max_outputs, 0),
2328 #endif
2329         DEFINE_PROP_END_OF_LIST(),
2330 };
2331 
2332 static void qxl_pci_class_init(ObjectClass *klass, void *data)
2333 {
2334     DeviceClass *dc = DEVICE_CLASS(klass);
2335     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2336 
2337     k->vendor_id = REDHAT_PCI_VENDOR_ID;
2338     k->device_id = QXL_DEVICE_ID_STABLE;
2339     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
2340     dc->reset = qxl_reset_handler;
2341     dc->vmsd = &qxl_vmstate;
2342     dc->props = qxl_properties;
2343 }
2344 
2345 static const TypeInfo qxl_pci_type_info = {
2346     .name = TYPE_PCI_QXL,
2347     .parent = TYPE_PCI_DEVICE,
2348     .instance_size = sizeof(PCIQXLDevice),
2349     .abstract = true,
2350     .class_init = qxl_pci_class_init,
2351 };
2352 
2353 static void qxl_primary_class_init(ObjectClass *klass, void *data)
2354 {
2355     DeviceClass *dc = DEVICE_CLASS(klass);
2356     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2357 
2358     k->realize = qxl_realize_primary;
2359     k->romfile = "vgabios-qxl.bin";
2360     k->class_id = PCI_CLASS_DISPLAY_VGA;
2361     dc->desc = "Spice QXL GPU (primary, vga compatible)";
2362     dc->hotpluggable = false;
2363 }
2364 
2365 static const TypeInfo qxl_primary_info = {
2366     .name          = "qxl-vga",
2367     .parent        = TYPE_PCI_QXL,
2368     .class_init    = qxl_primary_class_init,
2369 };
2370 
2371 static void qxl_secondary_class_init(ObjectClass *klass, void *data)
2372 {
2373     DeviceClass *dc = DEVICE_CLASS(klass);
2374     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2375 
2376     k->realize = qxl_realize_secondary;
2377     k->class_id = PCI_CLASS_DISPLAY_OTHER;
2378     dc->desc = "Spice QXL GPU (secondary)";
2379 }
2380 
2381 static const TypeInfo qxl_secondary_info = {
2382     .name          = "qxl",
2383     .parent        = TYPE_PCI_QXL,
2384     .class_init    = qxl_secondary_class_init,
2385 };
2386 
2387 static void qxl_register_types(void)
2388 {
2389     type_register_static(&qxl_pci_type_info);
2390     type_register_static(&qxl_primary_info);
2391     type_register_static(&qxl_secondary_info);
2392 }
2393 
2394 type_init(qxl_register_types)
2395