xref: /qemu/hw/display/qxl.c (revision 81b07353)
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 <zlib.h>
22 #include <stdint.h>
23 
24 #include "qemu-common.h"
25 #include "qemu/timer.h"
26 #include "qemu/queue.h"
27 #include "qemu/atomic.h"
28 #include "monitor/monitor.h"
29 #include "sysemu/sysemu.h"
30 #include "trace.h"
31 
32 #include "qxl.h"
33 
34 /*
35  * NOTE: SPICE_RING_PROD_ITEM accesses memory on the pci bar and as
36  * such can be changed by the guest, so to avoid a guest trigerrable
37  * abort we just qxl_set_guest_bug and set the return to NULL. Still
38  * it may happen as a result of emulator bug as well.
39  */
40 #undef SPICE_RING_PROD_ITEM
41 #define SPICE_RING_PROD_ITEM(qxl, r, ret) {                             \
42         uint32_t prod = (r)->prod & SPICE_RING_INDEX_MASK(r);           \
43         if (prod >= ARRAY_SIZE((r)->items)) {                           \
44             qxl_set_guest_bug(qxl, "SPICE_RING_PROD_ITEM indices mismatch " \
45                           "%u >= %zu", prod, ARRAY_SIZE((r)->items));   \
46             ret = NULL;                                                 \
47         } else {                                                        \
48             ret = &(r)->items[prod].el;                                 \
49         }                                                               \
50     }
51 
52 #undef SPICE_RING_CONS_ITEM
53 #define SPICE_RING_CONS_ITEM(qxl, r, ret) {                             \
54         uint32_t cons = (r)->cons & SPICE_RING_INDEX_MASK(r);           \
55         if (cons >= ARRAY_SIZE((r)->items)) {                           \
56             qxl_set_guest_bug(qxl, "SPICE_RING_CONS_ITEM indices mismatch " \
57                           "%u >= %zu", cons, ARRAY_SIZE((r)->items));   \
58             ret = NULL;                                                 \
59         } else {                                                        \
60             ret = &(r)->items[cons].el;                                 \
61         }                                                               \
62     }
63 
64 #undef ALIGN
65 #define ALIGN(a, b) (((a) + ((b) - 1)) & ~((b) - 1))
66 
67 #define PIXEL_SIZE 0.2936875 //1280x1024 is 14.8" x 11.9"
68 
69 #define QXL_MODE(_x, _y, _b, _o)                  \
70     {   .x_res = _x,                              \
71         .y_res = _y,                              \
72         .bits  = _b,                              \
73         .stride = (_x) * (_b) / 8,                \
74         .x_mili = PIXEL_SIZE * (_x),              \
75         .y_mili = PIXEL_SIZE * (_y),              \
76         .orientation = _o,                        \
77     }
78 
79 #define QXL_MODE_16_32(x_res, y_res, orientation) \
80     QXL_MODE(x_res, y_res, 16, orientation),      \
81     QXL_MODE(x_res, y_res, 32, orientation)
82 
83 #define QXL_MODE_EX(x_res, y_res)                 \
84     QXL_MODE_16_32(x_res, y_res, 0),              \
85     QXL_MODE_16_32(x_res, y_res, 1)
86 
87 static QXLMode qxl_modes[] = {
88     QXL_MODE_EX(640, 480),
89     QXL_MODE_EX(800, 480),
90     QXL_MODE_EX(800, 600),
91     QXL_MODE_EX(832, 624),
92     QXL_MODE_EX(960, 640),
93     QXL_MODE_EX(1024, 600),
94     QXL_MODE_EX(1024, 768),
95     QXL_MODE_EX(1152, 864),
96     QXL_MODE_EX(1152, 870),
97     QXL_MODE_EX(1280, 720),
98     QXL_MODE_EX(1280, 760),
99     QXL_MODE_EX(1280, 768),
100     QXL_MODE_EX(1280, 800),
101     QXL_MODE_EX(1280, 960),
102     QXL_MODE_EX(1280, 1024),
103     QXL_MODE_EX(1360, 768),
104     QXL_MODE_EX(1366, 768),
105     QXL_MODE_EX(1400, 1050),
106     QXL_MODE_EX(1440, 900),
107     QXL_MODE_EX(1600, 900),
108     QXL_MODE_EX(1600, 1200),
109     QXL_MODE_EX(1680, 1050),
110     QXL_MODE_EX(1920, 1080),
111     /* these modes need more than 8 MB video memory */
112     QXL_MODE_EX(1920, 1200),
113     QXL_MODE_EX(1920, 1440),
114     QXL_MODE_EX(2000, 2000),
115     QXL_MODE_EX(2048, 1536),
116     QXL_MODE_EX(2048, 2048),
117     QXL_MODE_EX(2560, 1440),
118     QXL_MODE_EX(2560, 1600),
119     /* these modes need more than 16 MB video memory */
120     QXL_MODE_EX(2560, 2048),
121     QXL_MODE_EX(2800, 2100),
122     QXL_MODE_EX(3200, 2400),
123     /* these modes need more than 32 MB video memory */
124     QXL_MODE_EX(3840, 2160), /* 4k mainstream */
125     QXL_MODE_EX(4096, 2160), /* 4k            */
126     /* these modes need more than 64 MB video memory */
127     QXL_MODE_EX(7680, 4320), /* 8k mainstream */
128     /* these modes need more than 128 MB video memory */
129     QXL_MODE_EX(8192, 4320), /* 8k            */
130 };
131 
132 static void qxl_send_events(PCIQXLDevice *d, uint32_t events);
133 static int qxl_destroy_primary(PCIQXLDevice *d, qxl_async_io async);
134 static void qxl_reset_memslots(PCIQXLDevice *d);
135 static void qxl_reset_surfaces(PCIQXLDevice *d);
136 static void qxl_ring_set_dirty(PCIQXLDevice *qxl);
137 
138 static void qxl_hw_update(void *opaque);
139 
140 void qxl_set_guest_bug(PCIQXLDevice *qxl, const char *msg, ...)
141 {
142     trace_qxl_set_guest_bug(qxl->id);
143     qxl_send_events(qxl, QXL_INTERRUPT_ERROR);
144     qxl->guest_bug = 1;
145     if (qxl->guestdebug) {
146         va_list ap;
147         va_start(ap, msg);
148         fprintf(stderr, "qxl-%d: guest bug: ", qxl->id);
149         vfprintf(stderr, msg, ap);
150         fprintf(stderr, "\n");
151         va_end(ap);
152     }
153 }
154 
155 static void qxl_clear_guest_bug(PCIQXLDevice *qxl)
156 {
157     qxl->guest_bug = 0;
158 }
159 
160 void qxl_spice_update_area(PCIQXLDevice *qxl, uint32_t surface_id,
161                            struct QXLRect *area, struct QXLRect *dirty_rects,
162                            uint32_t num_dirty_rects,
163                            uint32_t clear_dirty_region,
164                            qxl_async_io async, struct QXLCookie *cookie)
165 {
166     trace_qxl_spice_update_area(qxl->id, surface_id, area->left, area->right,
167                                 area->top, area->bottom);
168     trace_qxl_spice_update_area_rest(qxl->id, num_dirty_rects,
169                                      clear_dirty_region);
170     if (async == QXL_SYNC) {
171         spice_qxl_update_area(&qxl->ssd.qxl, surface_id, area,
172                         dirty_rects, num_dirty_rects, clear_dirty_region);
173     } else {
174         assert(cookie != NULL);
175         spice_qxl_update_area_async(&qxl->ssd.qxl, surface_id, area,
176                                     clear_dirty_region, (uintptr_t)cookie);
177     }
178 }
179 
180 static void qxl_spice_destroy_surface_wait_complete(PCIQXLDevice *qxl,
181                                                     uint32_t id)
182 {
183     trace_qxl_spice_destroy_surface_wait_complete(qxl->id, id);
184     qemu_mutex_lock(&qxl->track_lock);
185     qxl->guest_surfaces.cmds[id] = 0;
186     qxl->guest_surfaces.count--;
187     qemu_mutex_unlock(&qxl->track_lock);
188 }
189 
190 static void qxl_spice_destroy_surface_wait(PCIQXLDevice *qxl, uint32_t id,
191                                            qxl_async_io async)
192 {
193     QXLCookie *cookie;
194 
195     trace_qxl_spice_destroy_surface_wait(qxl->id, id, async);
196     if (async) {
197         cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
198                                 QXL_IO_DESTROY_SURFACE_ASYNC);
199         cookie->u.surface_id = id;
200         spice_qxl_destroy_surface_async(&qxl->ssd.qxl, id, (uintptr_t)cookie);
201     } else {
202         spice_qxl_destroy_surface_wait(&qxl->ssd.qxl, id);
203         qxl_spice_destroy_surface_wait_complete(qxl, id);
204     }
205 }
206 
207 static void qxl_spice_flush_surfaces_async(PCIQXLDevice *qxl)
208 {
209     trace_qxl_spice_flush_surfaces_async(qxl->id, qxl->guest_surfaces.count,
210                                          qxl->num_free_res);
211     spice_qxl_flush_surfaces_async(&qxl->ssd.qxl,
212         (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
213                                   QXL_IO_FLUSH_SURFACES_ASYNC));
214 }
215 
216 void qxl_spice_loadvm_commands(PCIQXLDevice *qxl, struct QXLCommandExt *ext,
217                                uint32_t count)
218 {
219     trace_qxl_spice_loadvm_commands(qxl->id, ext, count);
220     spice_qxl_loadvm_commands(&qxl->ssd.qxl, ext, count);
221 }
222 
223 void qxl_spice_oom(PCIQXLDevice *qxl)
224 {
225     trace_qxl_spice_oom(qxl->id);
226     spice_qxl_oom(&qxl->ssd.qxl);
227 }
228 
229 void qxl_spice_reset_memslots(PCIQXLDevice *qxl)
230 {
231     trace_qxl_spice_reset_memslots(qxl->id);
232     spice_qxl_reset_memslots(&qxl->ssd.qxl);
233 }
234 
235 static void qxl_spice_destroy_surfaces_complete(PCIQXLDevice *qxl)
236 {
237     trace_qxl_spice_destroy_surfaces_complete(qxl->id);
238     qemu_mutex_lock(&qxl->track_lock);
239     memset(qxl->guest_surfaces.cmds, 0,
240            sizeof(qxl->guest_surfaces.cmds[0]) * qxl->ssd.num_surfaces);
241     qxl->guest_surfaces.count = 0;
242     qemu_mutex_unlock(&qxl->track_lock);
243 }
244 
245 static void qxl_spice_destroy_surfaces(PCIQXLDevice *qxl, qxl_async_io async)
246 {
247     trace_qxl_spice_destroy_surfaces(qxl->id, async);
248     if (async) {
249         spice_qxl_destroy_surfaces_async(&qxl->ssd.qxl,
250                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
251                                           QXL_IO_DESTROY_ALL_SURFACES_ASYNC));
252     } else {
253         spice_qxl_destroy_surfaces(&qxl->ssd.qxl);
254         qxl_spice_destroy_surfaces_complete(qxl);
255     }
256 }
257 
258 static void qxl_spice_monitors_config_async(PCIQXLDevice *qxl, int replay)
259 {
260     trace_qxl_spice_monitors_config(qxl->id);
261     if (replay) {
262         /*
263          * don't use QXL_COOKIE_TYPE_IO:
264          *  - we are not running yet (post_load), we will assert
265          *    in send_events
266          *  - this is not a guest io, but a reply, so async_io isn't set.
267          */
268         spice_qxl_monitors_config_async(&qxl->ssd.qxl,
269                 qxl->guest_monitors_config,
270                 MEMSLOT_GROUP_GUEST,
271                 (uintptr_t)qxl_cookie_new(
272                     QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG,
273                     0));
274     } else {
275         qxl->guest_monitors_config = qxl->ram->monitors_config;
276         spice_qxl_monitors_config_async(&qxl->ssd.qxl,
277                 qxl->ram->monitors_config,
278                 MEMSLOT_GROUP_GUEST,
279                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
280                                           QXL_IO_MONITORS_CONFIG_ASYNC));
281     }
282 }
283 
284 void qxl_spice_reset_image_cache(PCIQXLDevice *qxl)
285 {
286     trace_qxl_spice_reset_image_cache(qxl->id);
287     spice_qxl_reset_image_cache(&qxl->ssd.qxl);
288 }
289 
290 void qxl_spice_reset_cursor(PCIQXLDevice *qxl)
291 {
292     trace_qxl_spice_reset_cursor(qxl->id);
293     spice_qxl_reset_cursor(&qxl->ssd.qxl);
294     qemu_mutex_lock(&qxl->track_lock);
295     qxl->guest_cursor = 0;
296     qemu_mutex_unlock(&qxl->track_lock);
297     if (qxl->ssd.cursor) {
298         cursor_put(qxl->ssd.cursor);
299     }
300     qxl->ssd.cursor = cursor_builtin_hidden();
301 }
302 
303 static ram_addr_t qxl_rom_size(void)
304 {
305     uint32_t required_rom_size = sizeof(QXLRom) + sizeof(QXLModes) +
306                                  sizeof(qxl_modes);
307     uint32_t rom_size = 8192; /* two pages */
308 
309     QEMU_BUILD_BUG_ON(required_rom_size > rom_size);
310     return rom_size;
311 }
312 
313 static void init_qxl_rom(PCIQXLDevice *d)
314 {
315     QXLRom *rom = memory_region_get_ram_ptr(&d->rom_bar);
316     QXLModes *modes = (QXLModes *)(rom + 1);
317     uint32_t ram_header_size;
318     uint32_t surface0_area_size;
319     uint32_t num_pages;
320     uint32_t fb;
321     int i, n;
322 
323     memset(rom, 0, d->rom_size);
324 
325     rom->magic         = cpu_to_le32(QXL_ROM_MAGIC);
326     rom->id            = cpu_to_le32(d->id);
327     rom->log_level     = cpu_to_le32(d->guestdebug);
328     rom->modes_offset  = cpu_to_le32(sizeof(QXLRom));
329 
330     rom->slot_gen_bits = MEMSLOT_GENERATION_BITS;
331     rom->slot_id_bits  = MEMSLOT_SLOT_BITS;
332     rom->slots_start   = 1;
333     rom->slots_end     = NUM_MEMSLOTS - 1;
334     rom->n_surfaces    = cpu_to_le32(d->ssd.num_surfaces);
335 
336     for (i = 0, n = 0; i < ARRAY_SIZE(qxl_modes); i++) {
337         fb = qxl_modes[i].y_res * qxl_modes[i].stride;
338         if (fb > d->vgamem_size) {
339             continue;
340         }
341         modes->modes[n].id          = cpu_to_le32(i);
342         modes->modes[n].x_res       = cpu_to_le32(qxl_modes[i].x_res);
343         modes->modes[n].y_res       = cpu_to_le32(qxl_modes[i].y_res);
344         modes->modes[n].bits        = cpu_to_le32(qxl_modes[i].bits);
345         modes->modes[n].stride      = cpu_to_le32(qxl_modes[i].stride);
346         modes->modes[n].x_mili      = cpu_to_le32(qxl_modes[i].x_mili);
347         modes->modes[n].y_mili      = cpu_to_le32(qxl_modes[i].y_mili);
348         modes->modes[n].orientation = cpu_to_le32(qxl_modes[i].orientation);
349         n++;
350     }
351     modes->n_modes     = cpu_to_le32(n);
352 
353     ram_header_size    = ALIGN(sizeof(QXLRam), 4096);
354     surface0_area_size = ALIGN(d->vgamem_size, 4096);
355     num_pages          = d->vga.vram_size;
356     num_pages         -= ram_header_size;
357     num_pages         -= surface0_area_size;
358     num_pages          = num_pages / QXL_PAGE_SIZE;
359 
360     assert(ram_header_size + surface0_area_size <= d->vga.vram_size);
361 
362     rom->draw_area_offset   = cpu_to_le32(0);
363     rom->surface0_area_size = cpu_to_le32(surface0_area_size);
364     rom->pages_offset       = cpu_to_le32(surface0_area_size);
365     rom->num_pages          = cpu_to_le32(num_pages);
366     rom->ram_header_offset  = cpu_to_le32(d->vga.vram_size - ram_header_size);
367 
368     d->shadow_rom = *rom;
369     d->rom        = rom;
370     d->modes      = modes;
371 }
372 
373 static void init_qxl_ram(PCIQXLDevice *d)
374 {
375     uint8_t *buf;
376     uint64_t *item;
377 
378     buf = d->vga.vram_ptr;
379     d->ram = (QXLRam *)(buf + le32_to_cpu(d->shadow_rom.ram_header_offset));
380     d->ram->magic       = cpu_to_le32(QXL_RAM_MAGIC);
381     d->ram->int_pending = cpu_to_le32(0);
382     d->ram->int_mask    = cpu_to_le32(0);
383     d->ram->update_surface = 0;
384     d->ram->monitors_config = 0;
385     SPICE_RING_INIT(&d->ram->cmd_ring);
386     SPICE_RING_INIT(&d->ram->cursor_ring);
387     SPICE_RING_INIT(&d->ram->release_ring);
388     SPICE_RING_PROD_ITEM(d, &d->ram->release_ring, item);
389     assert(item);
390     *item = 0;
391     qxl_ring_set_dirty(d);
392 }
393 
394 /* can be called from spice server thread context */
395 static void qxl_set_dirty(MemoryRegion *mr, ram_addr_t addr, ram_addr_t end)
396 {
397     memory_region_set_dirty(mr, addr, end - addr);
398 }
399 
400 static void qxl_rom_set_dirty(PCIQXLDevice *qxl)
401 {
402     qxl_set_dirty(&qxl->rom_bar, 0, qxl->rom_size);
403 }
404 
405 /* called from spice server thread context only */
406 static void qxl_ram_set_dirty(PCIQXLDevice *qxl, void *ptr)
407 {
408     void *base = qxl->vga.vram_ptr;
409     intptr_t offset;
410 
411     offset = ptr - base;
412     assert(offset < qxl->vga.vram_size);
413     qxl_set_dirty(&qxl->vga.vram, offset, offset + 3);
414 }
415 
416 /* can be called from spice server thread context */
417 static void qxl_ring_set_dirty(PCIQXLDevice *qxl)
418 {
419     ram_addr_t addr = qxl->shadow_rom.ram_header_offset;
420     ram_addr_t end  = qxl->vga.vram_size;
421     qxl_set_dirty(&qxl->vga.vram, addr, end);
422 }
423 
424 /*
425  * keep track of some command state, for savevm/loadvm.
426  * called from spice server thread context only
427  */
428 static int qxl_track_command(PCIQXLDevice *qxl, struct QXLCommandExt *ext)
429 {
430     switch (le32_to_cpu(ext->cmd.type)) {
431     case QXL_CMD_SURFACE:
432     {
433         QXLSurfaceCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
434 
435         if (!cmd) {
436             return 1;
437         }
438         uint32_t id = le32_to_cpu(cmd->surface_id);
439 
440         if (id >= qxl->ssd.num_surfaces) {
441             qxl_set_guest_bug(qxl, "QXL_CMD_SURFACE id %d >= %d", id,
442                               qxl->ssd.num_surfaces);
443             return 1;
444         }
445         if (cmd->type == QXL_SURFACE_CMD_CREATE &&
446             (cmd->u.surface_create.stride & 0x03) != 0) {
447             qxl_set_guest_bug(qxl, "QXL_CMD_SURFACE stride = %d %% 4 != 0\n",
448                               cmd->u.surface_create.stride);
449             return 1;
450         }
451         qemu_mutex_lock(&qxl->track_lock);
452         if (cmd->type == QXL_SURFACE_CMD_CREATE) {
453             qxl->guest_surfaces.cmds[id] = ext->cmd.data;
454             qxl->guest_surfaces.count++;
455             if (qxl->guest_surfaces.max < qxl->guest_surfaces.count)
456                 qxl->guest_surfaces.max = qxl->guest_surfaces.count;
457         }
458         if (cmd->type == QXL_SURFACE_CMD_DESTROY) {
459             qxl->guest_surfaces.cmds[id] = 0;
460             qxl->guest_surfaces.count--;
461         }
462         qemu_mutex_unlock(&qxl->track_lock);
463         break;
464     }
465     case QXL_CMD_CURSOR:
466     {
467         QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
468 
469         if (!cmd) {
470             return 1;
471         }
472         if (cmd->type == QXL_CURSOR_SET) {
473             qemu_mutex_lock(&qxl->track_lock);
474             qxl->guest_cursor = ext->cmd.data;
475             qemu_mutex_unlock(&qxl->track_lock);
476         }
477         break;
478     }
479     }
480     return 0;
481 }
482 
483 /* spice display interface callbacks */
484 
485 static void interface_attach_worker(QXLInstance *sin, QXLWorker *qxl_worker)
486 {
487     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
488 
489     trace_qxl_interface_attach_worker(qxl->id);
490     qxl->ssd.worker = qxl_worker;
491 }
492 
493 static void interface_set_compression_level(QXLInstance *sin, int level)
494 {
495     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
496 
497     trace_qxl_interface_set_compression_level(qxl->id, level);
498     qxl->shadow_rom.compression_level = cpu_to_le32(level);
499     qxl->rom->compression_level = cpu_to_le32(level);
500     qxl_rom_set_dirty(qxl);
501 }
502 
503 static void interface_set_mm_time(QXLInstance *sin, uint32_t mm_time)
504 {
505     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
506 
507     trace_qxl_interface_set_mm_time(qxl->id, mm_time);
508     qxl->shadow_rom.mm_clock = cpu_to_le32(mm_time);
509     qxl->rom->mm_clock = cpu_to_le32(mm_time);
510     qxl_rom_set_dirty(qxl);
511 }
512 
513 static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info)
514 {
515     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
516 
517     trace_qxl_interface_get_init_info(qxl->id);
518     info->memslot_gen_bits = MEMSLOT_GENERATION_BITS;
519     info->memslot_id_bits = MEMSLOT_SLOT_BITS;
520     info->num_memslots = NUM_MEMSLOTS;
521     info->num_memslots_groups = NUM_MEMSLOTS_GROUPS;
522     info->internal_groupslot_id = 0;
523     info->qxl_ram_size =
524         le32_to_cpu(qxl->shadow_rom.num_pages) << QXL_PAGE_BITS;
525     info->n_surfaces = qxl->ssd.num_surfaces;
526 }
527 
528 static const char *qxl_mode_to_string(int mode)
529 {
530     switch (mode) {
531     case QXL_MODE_COMPAT:
532         return "compat";
533     case QXL_MODE_NATIVE:
534         return "native";
535     case QXL_MODE_UNDEFINED:
536         return "undefined";
537     case QXL_MODE_VGA:
538         return "vga";
539     }
540     return "INVALID";
541 }
542 
543 static const char *io_port_to_string(uint32_t io_port)
544 {
545     if (io_port >= QXL_IO_RANGE_SIZE) {
546         return "out of range";
547     }
548     static const char *io_port_to_string[QXL_IO_RANGE_SIZE + 1] = {
549         [QXL_IO_NOTIFY_CMD]             = "QXL_IO_NOTIFY_CMD",
550         [QXL_IO_NOTIFY_CURSOR]          = "QXL_IO_NOTIFY_CURSOR",
551         [QXL_IO_UPDATE_AREA]            = "QXL_IO_UPDATE_AREA",
552         [QXL_IO_UPDATE_IRQ]             = "QXL_IO_UPDATE_IRQ",
553         [QXL_IO_NOTIFY_OOM]             = "QXL_IO_NOTIFY_OOM",
554         [QXL_IO_RESET]                  = "QXL_IO_RESET",
555         [QXL_IO_SET_MODE]               = "QXL_IO_SET_MODE",
556         [QXL_IO_LOG]                    = "QXL_IO_LOG",
557         [QXL_IO_MEMSLOT_ADD]            = "QXL_IO_MEMSLOT_ADD",
558         [QXL_IO_MEMSLOT_DEL]            = "QXL_IO_MEMSLOT_DEL",
559         [QXL_IO_DETACH_PRIMARY]         = "QXL_IO_DETACH_PRIMARY",
560         [QXL_IO_ATTACH_PRIMARY]         = "QXL_IO_ATTACH_PRIMARY",
561         [QXL_IO_CREATE_PRIMARY]         = "QXL_IO_CREATE_PRIMARY",
562         [QXL_IO_DESTROY_PRIMARY]        = "QXL_IO_DESTROY_PRIMARY",
563         [QXL_IO_DESTROY_SURFACE_WAIT]   = "QXL_IO_DESTROY_SURFACE_WAIT",
564         [QXL_IO_DESTROY_ALL_SURFACES]   = "QXL_IO_DESTROY_ALL_SURFACES",
565         [QXL_IO_UPDATE_AREA_ASYNC]      = "QXL_IO_UPDATE_AREA_ASYNC",
566         [QXL_IO_MEMSLOT_ADD_ASYNC]      = "QXL_IO_MEMSLOT_ADD_ASYNC",
567         [QXL_IO_CREATE_PRIMARY_ASYNC]   = "QXL_IO_CREATE_PRIMARY_ASYNC",
568         [QXL_IO_DESTROY_PRIMARY_ASYNC]  = "QXL_IO_DESTROY_PRIMARY_ASYNC",
569         [QXL_IO_DESTROY_SURFACE_ASYNC]  = "QXL_IO_DESTROY_SURFACE_ASYNC",
570         [QXL_IO_DESTROY_ALL_SURFACES_ASYNC]
571                                         = "QXL_IO_DESTROY_ALL_SURFACES_ASYNC",
572         [QXL_IO_FLUSH_SURFACES_ASYNC]   = "QXL_IO_FLUSH_SURFACES_ASYNC",
573         [QXL_IO_FLUSH_RELEASE]          = "QXL_IO_FLUSH_RELEASE",
574         [QXL_IO_MONITORS_CONFIG_ASYNC]  = "QXL_IO_MONITORS_CONFIG_ASYNC",
575     };
576     return io_port_to_string[io_port];
577 }
578 
579 /* called from spice server thread context only */
580 static int interface_get_command(QXLInstance *sin, struct QXLCommandExt *ext)
581 {
582     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
583     SimpleSpiceUpdate *update;
584     QXLCommandRing *ring;
585     QXLCommand *cmd;
586     int notify, ret;
587 
588     trace_qxl_ring_command_check(qxl->id, qxl_mode_to_string(qxl->mode));
589 
590     switch (qxl->mode) {
591     case QXL_MODE_VGA:
592         ret = false;
593         qemu_mutex_lock(&qxl->ssd.lock);
594         update = QTAILQ_FIRST(&qxl->ssd.updates);
595         if (update != NULL) {
596             QTAILQ_REMOVE(&qxl->ssd.updates, update, next);
597             *ext = update->ext;
598             ret = true;
599         }
600         qemu_mutex_unlock(&qxl->ssd.lock);
601         if (ret) {
602             trace_qxl_ring_command_get(qxl->id, qxl_mode_to_string(qxl->mode));
603             qxl_log_command(qxl, "vga", ext);
604         }
605         return ret;
606     case QXL_MODE_COMPAT:
607     case QXL_MODE_NATIVE:
608     case QXL_MODE_UNDEFINED:
609         ring = &qxl->ram->cmd_ring;
610         if (qxl->guest_bug || SPICE_RING_IS_EMPTY(ring)) {
611             return false;
612         }
613         SPICE_RING_CONS_ITEM(qxl, ring, cmd);
614         if (!cmd) {
615             return false;
616         }
617         ext->cmd      = *cmd;
618         ext->group_id = MEMSLOT_GROUP_GUEST;
619         ext->flags    = qxl->cmdflags;
620         SPICE_RING_POP(ring, notify);
621         qxl_ring_set_dirty(qxl);
622         if (notify) {
623             qxl_send_events(qxl, QXL_INTERRUPT_DISPLAY);
624         }
625         qxl->guest_primary.commands++;
626         qxl_track_command(qxl, ext);
627         qxl_log_command(qxl, "cmd", ext);
628         trace_qxl_ring_command_get(qxl->id, qxl_mode_to_string(qxl->mode));
629         return true;
630     default:
631         return false;
632     }
633 }
634 
635 /* called from spice server thread context only */
636 static int interface_req_cmd_notification(QXLInstance *sin)
637 {
638     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
639     int wait = 1;
640 
641     trace_qxl_ring_command_req_notification(qxl->id);
642     switch (qxl->mode) {
643     case QXL_MODE_COMPAT:
644     case QXL_MODE_NATIVE:
645     case QXL_MODE_UNDEFINED:
646         SPICE_RING_CONS_WAIT(&qxl->ram->cmd_ring, wait);
647         qxl_ring_set_dirty(qxl);
648         break;
649     default:
650         /* nothing */
651         break;
652     }
653     return wait;
654 }
655 
656 /* called from spice server thread context only */
657 static inline void qxl_push_free_res(PCIQXLDevice *d, int flush)
658 {
659     QXLReleaseRing *ring = &d->ram->release_ring;
660     uint64_t *item;
661     int notify;
662 
663 #define QXL_FREE_BUNCH_SIZE 32
664 
665     if (ring->prod - ring->cons + 1 == ring->num_items) {
666         /* ring full -- can't push */
667         return;
668     }
669     if (!flush && d->oom_running) {
670         /* collect everything from oom handler before pushing */
671         return;
672     }
673     if (!flush && d->num_free_res < QXL_FREE_BUNCH_SIZE) {
674         /* collect a bit more before pushing */
675         return;
676     }
677 
678     SPICE_RING_PUSH(ring, notify);
679     trace_qxl_ring_res_push(d->id, qxl_mode_to_string(d->mode),
680            d->guest_surfaces.count, d->num_free_res,
681            d->last_release, notify ? "yes" : "no");
682     trace_qxl_ring_res_push_rest(d->id, ring->prod - ring->cons,
683            ring->num_items, ring->prod, ring->cons);
684     if (notify) {
685         qxl_send_events(d, QXL_INTERRUPT_DISPLAY);
686     }
687     SPICE_RING_PROD_ITEM(d, ring, item);
688     if (!item) {
689         return;
690     }
691     *item = 0;
692     d->num_free_res = 0;
693     d->last_release = NULL;
694     qxl_ring_set_dirty(d);
695 }
696 
697 /* called from spice server thread context only */
698 static void interface_release_resource(QXLInstance *sin,
699                                        struct QXLReleaseInfoExt ext)
700 {
701     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
702     QXLReleaseRing *ring;
703     uint64_t *item, id;
704 
705     if (ext.group_id == MEMSLOT_GROUP_HOST) {
706         /* host group -> vga mode update request */
707         QXLCommandExt *cmdext = (void *)(intptr_t)(ext.info->id);
708         SimpleSpiceUpdate *update;
709         g_assert(cmdext->cmd.type == QXL_CMD_DRAW);
710         update = container_of(cmdext, SimpleSpiceUpdate, ext);
711         qemu_spice_destroy_update(&qxl->ssd, update);
712         return;
713     }
714 
715     /*
716      * ext->info points into guest-visible memory
717      * pci bar 0, $command.release_info
718      */
719     ring = &qxl->ram->release_ring;
720     SPICE_RING_PROD_ITEM(qxl, ring, item);
721     if (!item) {
722         return;
723     }
724     if (*item == 0) {
725         /* stick head into the ring */
726         id = ext.info->id;
727         ext.info->next = 0;
728         qxl_ram_set_dirty(qxl, &ext.info->next);
729         *item = id;
730         qxl_ring_set_dirty(qxl);
731     } else {
732         /* append item to the list */
733         qxl->last_release->next = ext.info->id;
734         qxl_ram_set_dirty(qxl, &qxl->last_release->next);
735         ext.info->next = 0;
736         qxl_ram_set_dirty(qxl, &ext.info->next);
737     }
738     qxl->last_release = ext.info;
739     qxl->num_free_res++;
740     trace_qxl_ring_res_put(qxl->id, qxl->num_free_res);
741     qxl_push_free_res(qxl, 0);
742 }
743 
744 /* called from spice server thread context only */
745 static int interface_get_cursor_command(QXLInstance *sin, struct QXLCommandExt *ext)
746 {
747     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
748     QXLCursorRing *ring;
749     QXLCommand *cmd;
750     int notify;
751 
752     trace_qxl_ring_cursor_check(qxl->id, qxl_mode_to_string(qxl->mode));
753 
754     switch (qxl->mode) {
755     case QXL_MODE_COMPAT:
756     case QXL_MODE_NATIVE:
757     case QXL_MODE_UNDEFINED:
758         ring = &qxl->ram->cursor_ring;
759         if (SPICE_RING_IS_EMPTY(ring)) {
760             return false;
761         }
762         SPICE_RING_CONS_ITEM(qxl, ring, cmd);
763         if (!cmd) {
764             return false;
765         }
766         ext->cmd      = *cmd;
767         ext->group_id = MEMSLOT_GROUP_GUEST;
768         ext->flags    = qxl->cmdflags;
769         SPICE_RING_POP(ring, notify);
770         qxl_ring_set_dirty(qxl);
771         if (notify) {
772             qxl_send_events(qxl, QXL_INTERRUPT_CURSOR);
773         }
774         qxl->guest_primary.commands++;
775         qxl_track_command(qxl, ext);
776         qxl_log_command(qxl, "csr", ext);
777         if (qxl->id == 0) {
778             qxl_render_cursor(qxl, ext);
779         }
780         trace_qxl_ring_cursor_get(qxl->id, qxl_mode_to_string(qxl->mode));
781         return true;
782     default:
783         return false;
784     }
785 }
786 
787 /* called from spice server thread context only */
788 static int interface_req_cursor_notification(QXLInstance *sin)
789 {
790     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
791     int wait = 1;
792 
793     trace_qxl_ring_cursor_req_notification(qxl->id);
794     switch (qxl->mode) {
795     case QXL_MODE_COMPAT:
796     case QXL_MODE_NATIVE:
797     case QXL_MODE_UNDEFINED:
798         SPICE_RING_CONS_WAIT(&qxl->ram->cursor_ring, wait);
799         qxl_ring_set_dirty(qxl);
800         break;
801     default:
802         /* nothing */
803         break;
804     }
805     return wait;
806 }
807 
808 /* called from spice server thread context */
809 static void interface_notify_update(QXLInstance *sin, uint32_t update_id)
810 {
811     /*
812      * Called by spice-server as a result of a QXL_CMD_UPDATE which is not in
813      * use by xf86-video-qxl and is defined out in the qxl windows driver.
814      * Probably was at some earlier version that is prior to git start (2009),
815      * and is still guest trigerrable.
816      */
817     fprintf(stderr, "%s: deprecated\n", __func__);
818 }
819 
820 /* called from spice server thread context only */
821 static int interface_flush_resources(QXLInstance *sin)
822 {
823     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
824     int ret;
825 
826     ret = qxl->num_free_res;
827     if (ret) {
828         qxl_push_free_res(qxl, 1);
829     }
830     return ret;
831 }
832 
833 static void qxl_create_guest_primary_complete(PCIQXLDevice *d);
834 
835 /* called from spice server thread context only */
836 static void interface_async_complete_io(PCIQXLDevice *qxl, QXLCookie *cookie)
837 {
838     uint32_t current_async;
839 
840     qemu_mutex_lock(&qxl->async_lock);
841     current_async = qxl->current_async;
842     qxl->current_async = QXL_UNDEFINED_IO;
843     qemu_mutex_unlock(&qxl->async_lock);
844 
845     trace_qxl_interface_async_complete_io(qxl->id, current_async, cookie);
846     if (!cookie) {
847         fprintf(stderr, "qxl: %s: error, cookie is NULL\n", __func__);
848         return;
849     }
850     if (cookie && current_async != cookie->io) {
851         fprintf(stderr,
852                 "qxl: %s: error: current_async = %d != %"
853                 PRId64 " = cookie->io\n", __func__, current_async, cookie->io);
854     }
855     switch (current_async) {
856     case QXL_IO_MEMSLOT_ADD_ASYNC:
857     case QXL_IO_DESTROY_PRIMARY_ASYNC:
858     case QXL_IO_UPDATE_AREA_ASYNC:
859     case QXL_IO_FLUSH_SURFACES_ASYNC:
860     case QXL_IO_MONITORS_CONFIG_ASYNC:
861         break;
862     case QXL_IO_CREATE_PRIMARY_ASYNC:
863         qxl_create_guest_primary_complete(qxl);
864         break;
865     case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
866         qxl_spice_destroy_surfaces_complete(qxl);
867         break;
868     case QXL_IO_DESTROY_SURFACE_ASYNC:
869         qxl_spice_destroy_surface_wait_complete(qxl, cookie->u.surface_id);
870         break;
871     default:
872         fprintf(stderr, "qxl: %s: unexpected current_async %d\n", __func__,
873                 current_async);
874     }
875     qxl_send_events(qxl, QXL_INTERRUPT_IO_CMD);
876 }
877 
878 /* called from spice server thread context only */
879 static void interface_update_area_complete(QXLInstance *sin,
880         uint32_t surface_id,
881         QXLRect *dirty, uint32_t num_updated_rects)
882 {
883     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
884     int i;
885     int qxl_i;
886 
887     qemu_mutex_lock(&qxl->ssd.lock);
888     if (surface_id != 0 || !qxl->render_update_cookie_num) {
889         qemu_mutex_unlock(&qxl->ssd.lock);
890         return;
891     }
892     trace_qxl_interface_update_area_complete(qxl->id, surface_id, dirty->left,
893             dirty->right, dirty->top, dirty->bottom);
894     trace_qxl_interface_update_area_complete_rest(qxl->id, num_updated_rects);
895     if (qxl->num_dirty_rects + num_updated_rects > QXL_NUM_DIRTY_RECTS) {
896         /*
897          * overflow - treat this as a full update. Not expected to be common.
898          */
899         trace_qxl_interface_update_area_complete_overflow(qxl->id,
900                                                           QXL_NUM_DIRTY_RECTS);
901         qxl->guest_primary.resized = 1;
902     }
903     if (qxl->guest_primary.resized) {
904         /*
905          * Don't bother copying or scheduling the bh since we will flip
906          * the whole area anyway on completion of the update_area async call
907          */
908         qemu_mutex_unlock(&qxl->ssd.lock);
909         return;
910     }
911     qxl_i = qxl->num_dirty_rects;
912     for (i = 0; i < num_updated_rects; i++) {
913         qxl->dirty[qxl_i++] = dirty[i];
914     }
915     qxl->num_dirty_rects += num_updated_rects;
916     trace_qxl_interface_update_area_complete_schedule_bh(qxl->id,
917                                                          qxl->num_dirty_rects);
918     qemu_bh_schedule(qxl->update_area_bh);
919     qemu_mutex_unlock(&qxl->ssd.lock);
920 }
921 
922 /* called from spice server thread context only */
923 static void interface_async_complete(QXLInstance *sin, uint64_t cookie_token)
924 {
925     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
926     QXLCookie *cookie = (QXLCookie *)(uintptr_t)cookie_token;
927 
928     switch (cookie->type) {
929     case QXL_COOKIE_TYPE_IO:
930         interface_async_complete_io(qxl, cookie);
931         g_free(cookie);
932         break;
933     case QXL_COOKIE_TYPE_RENDER_UPDATE_AREA:
934         qxl_render_update_area_done(qxl, cookie);
935         break;
936     case QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG:
937         break;
938     default:
939         fprintf(stderr, "qxl: %s: unexpected cookie type %d\n",
940                 __func__, cookie->type);
941         g_free(cookie);
942     }
943 }
944 
945 /* called from spice server thread context only */
946 static void interface_set_client_capabilities(QXLInstance *sin,
947                                               uint8_t client_present,
948                                               uint8_t caps[58])
949 {
950     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
951 
952     if (qxl->revision < 4) {
953         trace_qxl_set_client_capabilities_unsupported_by_revision(qxl->id,
954                                                               qxl->revision);
955         return;
956     }
957 
958     if (runstate_check(RUN_STATE_INMIGRATE) ||
959         runstate_check(RUN_STATE_POSTMIGRATE)) {
960         return;
961     }
962 
963     qxl->shadow_rom.client_present = client_present;
964     memcpy(qxl->shadow_rom.client_capabilities, caps,
965            sizeof(qxl->shadow_rom.client_capabilities));
966     qxl->rom->client_present = client_present;
967     memcpy(qxl->rom->client_capabilities, caps,
968            sizeof(qxl->rom->client_capabilities));
969     qxl_rom_set_dirty(qxl);
970 
971     qxl_send_events(qxl, QXL_INTERRUPT_CLIENT);
972 }
973 
974 static uint32_t qxl_crc32(const uint8_t *p, unsigned len)
975 {
976     /*
977      * zlib xors the seed with 0xffffffff, and xors the result
978      * again with 0xffffffff; Both are not done with linux's crc32,
979      * which we want to be compatible with, so undo that.
980      */
981     return crc32(0xffffffff, p, len) ^ 0xffffffff;
982 }
983 
984 /* called from main context only */
985 static int interface_client_monitors_config(QXLInstance *sin,
986                                         VDAgentMonitorsConfig *monitors_config)
987 {
988     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
989     QXLRom *rom = memory_region_get_ram_ptr(&qxl->rom_bar);
990     int i;
991 
992     if (qxl->revision < 4) {
993         trace_qxl_client_monitors_config_unsupported_by_device(qxl->id,
994                                                                qxl->revision);
995         return 0;
996     }
997     /*
998      * Older windows drivers set int_mask to 0 when their ISR is called,
999      * then later set it to ~0. So it doesn't relate to the actual interrupts
1000      * handled. However, they are old, so clearly they don't support this
1001      * interrupt
1002      */
1003     if (qxl->ram->int_mask == 0 || qxl->ram->int_mask == ~0 ||
1004         !(qxl->ram->int_mask & QXL_INTERRUPT_CLIENT_MONITORS_CONFIG)) {
1005         trace_qxl_client_monitors_config_unsupported_by_guest(qxl->id,
1006                                                             qxl->ram->int_mask,
1007                                                             monitors_config);
1008         return 0;
1009     }
1010     if (!monitors_config) {
1011         return 1;
1012     }
1013     memset(&rom->client_monitors_config, 0,
1014            sizeof(rom->client_monitors_config));
1015     rom->client_monitors_config.count = monitors_config->num_of_monitors;
1016     /* monitors_config->flags ignored */
1017     if (rom->client_monitors_config.count >=
1018             ARRAY_SIZE(rom->client_monitors_config.heads)) {
1019         trace_qxl_client_monitors_config_capped(qxl->id,
1020                                 monitors_config->num_of_monitors,
1021                                 ARRAY_SIZE(rom->client_monitors_config.heads));
1022         rom->client_monitors_config.count =
1023             ARRAY_SIZE(rom->client_monitors_config.heads);
1024     }
1025     for (i = 0 ; i < rom->client_monitors_config.count ; ++i) {
1026         VDAgentMonConfig *monitor = &monitors_config->monitors[i];
1027         QXLURect *rect = &rom->client_monitors_config.heads[i];
1028         /* monitor->depth ignored */
1029         rect->left = monitor->x;
1030         rect->top = monitor->y;
1031         rect->right = monitor->x + monitor->width;
1032         rect->bottom = monitor->y + monitor->height;
1033     }
1034     rom->client_monitors_config_crc = qxl_crc32(
1035             (const uint8_t *)&rom->client_monitors_config,
1036             sizeof(rom->client_monitors_config));
1037     trace_qxl_client_monitors_config_crc(qxl->id,
1038             sizeof(rom->client_monitors_config),
1039             rom->client_monitors_config_crc);
1040 
1041     trace_qxl_interrupt_client_monitors_config(qxl->id,
1042                         rom->client_monitors_config.count,
1043                         rom->client_monitors_config.heads);
1044     qxl_send_events(qxl, QXL_INTERRUPT_CLIENT_MONITORS_CONFIG);
1045     return 1;
1046 }
1047 
1048 static const QXLInterface qxl_interface = {
1049     .base.type               = SPICE_INTERFACE_QXL,
1050     .base.description        = "qxl gpu",
1051     .base.major_version      = SPICE_INTERFACE_QXL_MAJOR,
1052     .base.minor_version      = SPICE_INTERFACE_QXL_MINOR,
1053 
1054     .attache_worker          = interface_attach_worker,
1055     .set_compression_level   = interface_set_compression_level,
1056     .set_mm_time             = interface_set_mm_time,
1057     .get_init_info           = interface_get_init_info,
1058 
1059     /* the callbacks below are called from spice server thread context */
1060     .get_command             = interface_get_command,
1061     .req_cmd_notification    = interface_req_cmd_notification,
1062     .release_resource        = interface_release_resource,
1063     .get_cursor_command      = interface_get_cursor_command,
1064     .req_cursor_notification = interface_req_cursor_notification,
1065     .notify_update           = interface_notify_update,
1066     .flush_resources         = interface_flush_resources,
1067     .async_complete          = interface_async_complete,
1068     .update_area_complete    = interface_update_area_complete,
1069     .set_client_capabilities = interface_set_client_capabilities,
1070     .client_monitors_config = interface_client_monitors_config,
1071 };
1072 
1073 static const GraphicHwOps qxl_ops = {
1074     .gfx_update  = qxl_hw_update,
1075 };
1076 
1077 static void qxl_enter_vga_mode(PCIQXLDevice *d)
1078 {
1079     if (d->mode == QXL_MODE_VGA) {
1080         return;
1081     }
1082     trace_qxl_enter_vga_mode(d->id);
1083 #if SPICE_SERVER_VERSION >= 0x000c03 /* release 0.12.3 */
1084     spice_qxl_driver_unload(&d->ssd.qxl);
1085 #endif
1086     graphic_console_set_hwops(d->ssd.dcl.con, d->vga.hw_ops, &d->vga);
1087     update_displaychangelistener(&d->ssd.dcl, GUI_REFRESH_INTERVAL_DEFAULT);
1088     qemu_spice_create_host_primary(&d->ssd);
1089     d->mode = QXL_MODE_VGA;
1090     vga_dirty_log_start(&d->vga);
1091     graphic_hw_update(d->vga.con);
1092 }
1093 
1094 static void qxl_exit_vga_mode(PCIQXLDevice *d)
1095 {
1096     if (d->mode != QXL_MODE_VGA) {
1097         return;
1098     }
1099     trace_qxl_exit_vga_mode(d->id);
1100     graphic_console_set_hwops(d->ssd.dcl.con, &qxl_ops, d);
1101     update_displaychangelistener(&d->ssd.dcl, GUI_REFRESH_INTERVAL_IDLE);
1102     vga_dirty_log_stop(&d->vga);
1103     qxl_destroy_primary(d, QXL_SYNC);
1104 }
1105 
1106 static void qxl_update_irq(PCIQXLDevice *d)
1107 {
1108     uint32_t pending = le32_to_cpu(d->ram->int_pending);
1109     uint32_t mask    = le32_to_cpu(d->ram->int_mask);
1110     int level = !!(pending & mask);
1111     pci_set_irq(&d->pci, level);
1112     qxl_ring_set_dirty(d);
1113 }
1114 
1115 static void qxl_check_state(PCIQXLDevice *d)
1116 {
1117     QXLRam *ram = d->ram;
1118     int spice_display_running = qemu_spice_display_is_running(&d->ssd);
1119 
1120     assert(!spice_display_running || SPICE_RING_IS_EMPTY(&ram->cmd_ring));
1121     assert(!spice_display_running || SPICE_RING_IS_EMPTY(&ram->cursor_ring));
1122 }
1123 
1124 static void qxl_reset_state(PCIQXLDevice *d)
1125 {
1126     QXLRom *rom = d->rom;
1127 
1128     qxl_check_state(d);
1129     d->shadow_rom.update_id = cpu_to_le32(0);
1130     *rom = d->shadow_rom;
1131     qxl_rom_set_dirty(d);
1132     init_qxl_ram(d);
1133     d->num_free_res = 0;
1134     d->last_release = NULL;
1135     memset(&d->ssd.dirty, 0, sizeof(d->ssd.dirty));
1136     qxl_update_irq(d);
1137 }
1138 
1139 static void qxl_soft_reset(PCIQXLDevice *d)
1140 {
1141     trace_qxl_soft_reset(d->id);
1142     qxl_check_state(d);
1143     qxl_clear_guest_bug(d);
1144     d->current_async = QXL_UNDEFINED_IO;
1145 
1146     if (d->id == 0) {
1147         qxl_enter_vga_mode(d);
1148     } else {
1149         d->mode = QXL_MODE_UNDEFINED;
1150     }
1151 }
1152 
1153 static void qxl_hard_reset(PCIQXLDevice *d, int loadvm)
1154 {
1155     bool startstop = qemu_spice_display_is_running(&d->ssd);
1156 
1157     trace_qxl_hard_reset(d->id, loadvm);
1158 
1159     if (startstop) {
1160         qemu_spice_display_stop();
1161     }
1162 
1163     qxl_spice_reset_cursor(d);
1164     qxl_spice_reset_image_cache(d);
1165     qxl_reset_surfaces(d);
1166     qxl_reset_memslots(d);
1167 
1168     /* pre loadvm reset must not touch QXLRam.  This lives in
1169      * device memory, is migrated together with RAM and thus
1170      * already loaded at this point */
1171     if (!loadvm) {
1172         qxl_reset_state(d);
1173     }
1174     qemu_spice_create_host_memslot(&d->ssd);
1175     qxl_soft_reset(d);
1176 
1177     if (startstop) {
1178         qemu_spice_display_start();
1179     }
1180 }
1181 
1182 static void qxl_reset_handler(DeviceState *dev)
1183 {
1184     PCIQXLDevice *d = DO_UPCAST(PCIQXLDevice, pci.qdev, dev);
1185 
1186     qxl_hard_reset(d, 0);
1187 }
1188 
1189 static void qxl_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
1190 {
1191     VGACommonState *vga = opaque;
1192     PCIQXLDevice *qxl = container_of(vga, PCIQXLDevice, vga);
1193 
1194     trace_qxl_io_write_vga(qxl->id, qxl_mode_to_string(qxl->mode), addr, val);
1195     if (qxl->mode != QXL_MODE_VGA) {
1196         qxl_destroy_primary(qxl, QXL_SYNC);
1197         qxl_soft_reset(qxl);
1198     }
1199     vga_ioport_write(opaque, addr, val);
1200 }
1201 
1202 static const MemoryRegionPortio qxl_vga_portio_list[] = {
1203     { 0x04,  2, 1, .read  = vga_ioport_read,
1204                    .write = qxl_vga_ioport_write }, /* 3b4 */
1205     { 0x0a,  1, 1, .read  = vga_ioport_read,
1206                    .write = qxl_vga_ioport_write }, /* 3ba */
1207     { 0x10, 16, 1, .read  = vga_ioport_read,
1208                    .write = qxl_vga_ioport_write }, /* 3c0 */
1209     { 0x24,  2, 1, .read  = vga_ioport_read,
1210                    .write = qxl_vga_ioport_write }, /* 3d4 */
1211     { 0x2a,  1, 1, .read  = vga_ioport_read,
1212                    .write = qxl_vga_ioport_write }, /* 3da */
1213     PORTIO_END_OF_LIST(),
1214 };
1215 
1216 static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
1217                            qxl_async_io async)
1218 {
1219     static const int regions[] = {
1220         QXL_RAM_RANGE_INDEX,
1221         QXL_VRAM_RANGE_INDEX,
1222         QXL_VRAM64_RANGE_INDEX,
1223     };
1224     uint64_t guest_start;
1225     uint64_t guest_end;
1226     int pci_region;
1227     pcibus_t pci_start;
1228     pcibus_t pci_end;
1229     intptr_t virt_start;
1230     QXLDevMemSlot memslot;
1231     int i;
1232 
1233     guest_start = le64_to_cpu(d->guest_slots[slot_id].slot.mem_start);
1234     guest_end   = le64_to_cpu(d->guest_slots[slot_id].slot.mem_end);
1235 
1236     trace_qxl_memslot_add_guest(d->id, slot_id, guest_start, guest_end);
1237 
1238     if (slot_id >= NUM_MEMSLOTS) {
1239         qxl_set_guest_bug(d, "%s: slot_id >= NUM_MEMSLOTS %d >= %d", __func__,
1240                       slot_id, NUM_MEMSLOTS);
1241         return 1;
1242     }
1243     if (guest_start > guest_end) {
1244         qxl_set_guest_bug(d, "%s: guest_start > guest_end 0x%" PRIx64
1245                          " > 0x%" PRIx64, __func__, guest_start, guest_end);
1246         return 1;
1247     }
1248 
1249     for (i = 0; i < ARRAY_SIZE(regions); i++) {
1250         pci_region = regions[i];
1251         pci_start = d->pci.io_regions[pci_region].addr;
1252         pci_end = pci_start + d->pci.io_regions[pci_region].size;
1253         /* mapped? */
1254         if (pci_start == -1) {
1255             continue;
1256         }
1257         /* start address in range ? */
1258         if (guest_start < pci_start || guest_start > pci_end) {
1259             continue;
1260         }
1261         /* end address in range ? */
1262         if (guest_end > pci_end) {
1263             continue;
1264         }
1265         /* passed */
1266         break;
1267     }
1268     if (i == ARRAY_SIZE(regions)) {
1269         qxl_set_guest_bug(d, "%s: finished loop without match", __func__);
1270         return 1;
1271     }
1272 
1273     switch (pci_region) {
1274     case QXL_RAM_RANGE_INDEX:
1275         virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vga.vram);
1276         break;
1277     case QXL_VRAM_RANGE_INDEX:
1278     case 4 /* vram 64bit */:
1279         virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vram_bar);
1280         break;
1281     default:
1282         /* should not happen */
1283         qxl_set_guest_bug(d, "%s: pci_region = %d", __func__, pci_region);
1284         return 1;
1285     }
1286 
1287     memslot.slot_id = slot_id;
1288     memslot.slot_group_id = MEMSLOT_GROUP_GUEST; /* guest group */
1289     memslot.virt_start = virt_start + (guest_start - pci_start);
1290     memslot.virt_end   = virt_start + (guest_end   - pci_start);
1291     memslot.addr_delta = memslot.virt_start - delta;
1292     memslot.generation = d->rom->slot_generation = 0;
1293     qxl_rom_set_dirty(d);
1294 
1295     qemu_spice_add_memslot(&d->ssd, &memslot, async);
1296     d->guest_slots[slot_id].ptr = (void*)memslot.virt_start;
1297     d->guest_slots[slot_id].size = memslot.virt_end - memslot.virt_start;
1298     d->guest_slots[slot_id].delta = delta;
1299     d->guest_slots[slot_id].active = 1;
1300     return 0;
1301 }
1302 
1303 static void qxl_del_memslot(PCIQXLDevice *d, uint32_t slot_id)
1304 {
1305     qemu_spice_del_memslot(&d->ssd, MEMSLOT_GROUP_HOST, slot_id);
1306     d->guest_slots[slot_id].active = 0;
1307 }
1308 
1309 static void qxl_reset_memslots(PCIQXLDevice *d)
1310 {
1311     qxl_spice_reset_memslots(d);
1312     memset(&d->guest_slots, 0, sizeof(d->guest_slots));
1313 }
1314 
1315 static void qxl_reset_surfaces(PCIQXLDevice *d)
1316 {
1317     trace_qxl_reset_surfaces(d->id);
1318     d->mode = QXL_MODE_UNDEFINED;
1319     qxl_spice_destroy_surfaces(d, QXL_SYNC);
1320 }
1321 
1322 /* can be also called from spice server thread context */
1323 void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id)
1324 {
1325     uint64_t phys   = le64_to_cpu(pqxl);
1326     uint32_t slot   = (phys >> (64 -  8)) & 0xff;
1327     uint64_t offset = phys & 0xffffffffffff;
1328 
1329     switch (group_id) {
1330     case MEMSLOT_GROUP_HOST:
1331         return (void *)(intptr_t)offset;
1332     case MEMSLOT_GROUP_GUEST:
1333         if (slot >= NUM_MEMSLOTS) {
1334             qxl_set_guest_bug(qxl, "slot too large %d >= %d", slot,
1335                               NUM_MEMSLOTS);
1336             return NULL;
1337         }
1338         if (!qxl->guest_slots[slot].active) {
1339             qxl_set_guest_bug(qxl, "inactive slot %d\n", slot);
1340             return NULL;
1341         }
1342         if (offset < qxl->guest_slots[slot].delta) {
1343             qxl_set_guest_bug(qxl,
1344                           "slot %d offset %"PRIu64" < delta %"PRIu64"\n",
1345                           slot, offset, qxl->guest_slots[slot].delta);
1346             return NULL;
1347         }
1348         offset -= qxl->guest_slots[slot].delta;
1349         if (offset > qxl->guest_slots[slot].size) {
1350             qxl_set_guest_bug(qxl,
1351                           "slot %d offset %"PRIu64" > size %"PRIu64"\n",
1352                           slot, offset, qxl->guest_slots[slot].size);
1353             return NULL;
1354         }
1355         return qxl->guest_slots[slot].ptr + offset;
1356     }
1357     return NULL;
1358 }
1359 
1360 static void qxl_create_guest_primary_complete(PCIQXLDevice *qxl)
1361 {
1362     /* for local rendering */
1363     qxl_render_resize(qxl);
1364 }
1365 
1366 static void qxl_create_guest_primary(PCIQXLDevice *qxl, int loadvm,
1367                                      qxl_async_io async)
1368 {
1369     QXLDevSurfaceCreate surface;
1370     QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
1371     uint32_t requested_height = le32_to_cpu(sc->height);
1372     int requested_stride = le32_to_cpu(sc->stride);
1373 
1374     if (requested_stride == INT32_MIN ||
1375         abs(requested_stride) * (uint64_t)requested_height
1376                                         > qxl->vgamem_size) {
1377         qxl_set_guest_bug(qxl, "%s: requested primary larger than framebuffer"
1378                                " stride %d x height %" PRIu32 " > %" PRIu32,
1379                                __func__, requested_stride, requested_height,
1380                                qxl->vgamem_size);
1381         return;
1382     }
1383 
1384     if (qxl->mode == QXL_MODE_NATIVE) {
1385         qxl_set_guest_bug(qxl, "%s: nop since already in QXL_MODE_NATIVE",
1386                       __func__);
1387     }
1388     qxl_exit_vga_mode(qxl);
1389 
1390     surface.format     = le32_to_cpu(sc->format);
1391     surface.height     = le32_to_cpu(sc->height);
1392     surface.mem        = le64_to_cpu(sc->mem);
1393     surface.position   = le32_to_cpu(sc->position);
1394     surface.stride     = le32_to_cpu(sc->stride);
1395     surface.width      = le32_to_cpu(sc->width);
1396     surface.type       = le32_to_cpu(sc->type);
1397     surface.flags      = le32_to_cpu(sc->flags);
1398     trace_qxl_create_guest_primary(qxl->id, sc->width, sc->height, sc->mem,
1399                                    sc->format, sc->position);
1400     trace_qxl_create_guest_primary_rest(qxl->id, sc->stride, sc->type,
1401                                         sc->flags);
1402 
1403     if ((surface.stride & 0x3) != 0) {
1404         qxl_set_guest_bug(qxl, "primary surface stride = %d %% 4 != 0",
1405                           surface.stride);
1406         return;
1407     }
1408 
1409     surface.mouse_mode = true;
1410     surface.group_id   = MEMSLOT_GROUP_GUEST;
1411     if (loadvm) {
1412         surface.flags |= QXL_SURF_FLAG_KEEP_DATA;
1413     }
1414 
1415     qxl->mode = QXL_MODE_NATIVE;
1416     qxl->cmdflags = 0;
1417     qemu_spice_create_primary_surface(&qxl->ssd, 0, &surface, async);
1418 
1419     if (async == QXL_SYNC) {
1420         qxl_create_guest_primary_complete(qxl);
1421     }
1422 }
1423 
1424 /* return 1 if surface destoy was initiated (in QXL_ASYNC case) or
1425  * done (in QXL_SYNC case), 0 otherwise. */
1426 static int qxl_destroy_primary(PCIQXLDevice *d, qxl_async_io async)
1427 {
1428     if (d->mode == QXL_MODE_UNDEFINED) {
1429         return 0;
1430     }
1431     trace_qxl_destroy_primary(d->id);
1432     d->mode = QXL_MODE_UNDEFINED;
1433     qemu_spice_destroy_primary_surface(&d->ssd, 0, async);
1434     qxl_spice_reset_cursor(d);
1435     return 1;
1436 }
1437 
1438 static void qxl_set_mode(PCIQXLDevice *d, unsigned int modenr, int loadvm)
1439 {
1440     pcibus_t start = d->pci.io_regions[QXL_RAM_RANGE_INDEX].addr;
1441     pcibus_t end   = d->pci.io_regions[QXL_RAM_RANGE_INDEX].size + start;
1442     QXLMode *mode = d->modes->modes + modenr;
1443     uint64_t devmem = d->pci.io_regions[QXL_RAM_RANGE_INDEX].addr;
1444     QXLMemSlot slot = {
1445         .mem_start = start,
1446         .mem_end = end
1447     };
1448 
1449     if (modenr >= d->modes->n_modes) {
1450         qxl_set_guest_bug(d, "mode number out of range");
1451         return;
1452     }
1453 
1454     QXLSurfaceCreate surface = {
1455         .width      = mode->x_res,
1456         .height     = mode->y_res,
1457         .stride     = -mode->x_res * 4,
1458         .format     = SPICE_SURFACE_FMT_32_xRGB,
1459         .flags      = loadvm ? QXL_SURF_FLAG_KEEP_DATA : 0,
1460         .mouse_mode = true,
1461         .mem        = devmem + d->shadow_rom.draw_area_offset,
1462     };
1463 
1464     trace_qxl_set_mode(d->id, modenr, mode->x_res, mode->y_res, mode->bits,
1465                        devmem);
1466     if (!loadvm) {
1467         qxl_hard_reset(d, 0);
1468     }
1469 
1470     d->guest_slots[0].slot = slot;
1471     assert(qxl_add_memslot(d, 0, devmem, QXL_SYNC) == 0);
1472 
1473     d->guest_primary.surface = surface;
1474     qxl_create_guest_primary(d, 0, QXL_SYNC);
1475 
1476     d->mode = QXL_MODE_COMPAT;
1477     d->cmdflags = QXL_COMMAND_FLAG_COMPAT;
1478     if (mode->bits == 16) {
1479         d->cmdflags |= QXL_COMMAND_FLAG_COMPAT_16BPP;
1480     }
1481     d->shadow_rom.mode = cpu_to_le32(modenr);
1482     d->rom->mode = cpu_to_le32(modenr);
1483     qxl_rom_set_dirty(d);
1484 }
1485 
1486 static void ioport_write(void *opaque, hwaddr addr,
1487                          uint64_t val, unsigned size)
1488 {
1489     PCIQXLDevice *d = opaque;
1490     uint32_t io_port = addr;
1491     qxl_async_io async = QXL_SYNC;
1492     uint32_t orig_io_port = io_port;
1493 
1494     if (d->guest_bug && io_port != QXL_IO_RESET) {
1495         return;
1496     }
1497 
1498     if (d->revision <= QXL_REVISION_STABLE_V10 &&
1499         io_port > QXL_IO_FLUSH_RELEASE) {
1500         qxl_set_guest_bug(d, "unsupported io %d for revision %d\n",
1501             io_port, d->revision);
1502         return;
1503     }
1504 
1505     switch (io_port) {
1506     case QXL_IO_RESET:
1507     case QXL_IO_SET_MODE:
1508     case QXL_IO_MEMSLOT_ADD:
1509     case QXL_IO_MEMSLOT_DEL:
1510     case QXL_IO_CREATE_PRIMARY:
1511     case QXL_IO_UPDATE_IRQ:
1512     case QXL_IO_LOG:
1513     case QXL_IO_MEMSLOT_ADD_ASYNC:
1514     case QXL_IO_CREATE_PRIMARY_ASYNC:
1515         break;
1516     default:
1517         if (d->mode != QXL_MODE_VGA) {
1518             break;
1519         }
1520         trace_qxl_io_unexpected_vga_mode(d->id,
1521             addr, val, io_port_to_string(io_port));
1522         /* be nice to buggy guest drivers */
1523         if (io_port >= QXL_IO_UPDATE_AREA_ASYNC &&
1524             io_port < QXL_IO_RANGE_SIZE) {
1525             qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
1526         }
1527         return;
1528     }
1529 
1530     /* we change the io_port to avoid ifdeffery in the main switch */
1531     orig_io_port = io_port;
1532     switch (io_port) {
1533     case QXL_IO_UPDATE_AREA_ASYNC:
1534         io_port = QXL_IO_UPDATE_AREA;
1535         goto async_common;
1536     case QXL_IO_MEMSLOT_ADD_ASYNC:
1537         io_port = QXL_IO_MEMSLOT_ADD;
1538         goto async_common;
1539     case QXL_IO_CREATE_PRIMARY_ASYNC:
1540         io_port = QXL_IO_CREATE_PRIMARY;
1541         goto async_common;
1542     case QXL_IO_DESTROY_PRIMARY_ASYNC:
1543         io_port = QXL_IO_DESTROY_PRIMARY;
1544         goto async_common;
1545     case QXL_IO_DESTROY_SURFACE_ASYNC:
1546         io_port = QXL_IO_DESTROY_SURFACE_WAIT;
1547         goto async_common;
1548     case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
1549         io_port = QXL_IO_DESTROY_ALL_SURFACES;
1550         goto async_common;
1551     case QXL_IO_FLUSH_SURFACES_ASYNC:
1552     case QXL_IO_MONITORS_CONFIG_ASYNC:
1553 async_common:
1554         async = QXL_ASYNC;
1555         qemu_mutex_lock(&d->async_lock);
1556         if (d->current_async != QXL_UNDEFINED_IO) {
1557             qxl_set_guest_bug(d, "%d async started before last (%d) complete",
1558                 io_port, d->current_async);
1559             qemu_mutex_unlock(&d->async_lock);
1560             return;
1561         }
1562         d->current_async = orig_io_port;
1563         qemu_mutex_unlock(&d->async_lock);
1564         break;
1565     default:
1566         break;
1567     }
1568     trace_qxl_io_write(d->id, qxl_mode_to_string(d->mode),
1569                        addr, io_port_to_string(addr),
1570                        val, size, async);
1571 
1572     switch (io_port) {
1573     case QXL_IO_UPDATE_AREA:
1574     {
1575         QXLCookie *cookie = NULL;
1576         QXLRect update = d->ram->update_area;
1577 
1578         if (d->ram->update_surface > d->ssd.num_surfaces) {
1579             qxl_set_guest_bug(d, "QXL_IO_UPDATE_AREA: invalid surface id %d\n",
1580                               d->ram->update_surface);
1581             break;
1582         }
1583         if (update.left >= update.right || update.top >= update.bottom ||
1584             update.left < 0 || update.top < 0) {
1585             qxl_set_guest_bug(d,
1586                     "QXL_IO_UPDATE_AREA: invalid area (%ux%u)x(%ux%u)\n",
1587                     update.left, update.top, update.right, update.bottom);
1588             if (update.left == update.right || update.top == update.bottom) {
1589                 /* old drivers may provide empty area, keep going */
1590                 qxl_clear_guest_bug(d);
1591                 goto cancel_async;
1592             }
1593             break;
1594         }
1595         if (async == QXL_ASYNC) {
1596             cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
1597                                     QXL_IO_UPDATE_AREA_ASYNC);
1598             cookie->u.area = update;
1599         }
1600         qxl_spice_update_area(d, d->ram->update_surface,
1601                               cookie ? &cookie->u.area : &update,
1602                               NULL, 0, 0, async, cookie);
1603         break;
1604     }
1605     case QXL_IO_NOTIFY_CMD:
1606         qemu_spice_wakeup(&d->ssd);
1607         break;
1608     case QXL_IO_NOTIFY_CURSOR:
1609         qemu_spice_wakeup(&d->ssd);
1610         break;
1611     case QXL_IO_UPDATE_IRQ:
1612         qxl_update_irq(d);
1613         break;
1614     case QXL_IO_NOTIFY_OOM:
1615         if (!SPICE_RING_IS_EMPTY(&d->ram->release_ring)) {
1616             break;
1617         }
1618         d->oom_running = 1;
1619         qxl_spice_oom(d);
1620         d->oom_running = 0;
1621         break;
1622     case QXL_IO_SET_MODE:
1623         qxl_set_mode(d, val, 0);
1624         break;
1625     case QXL_IO_LOG:
1626         trace_qxl_io_log(d->id, d->ram->log_buf);
1627         if (d->guestdebug) {
1628             fprintf(stderr, "qxl/guest-%d: %" PRId64 ": %s", d->id,
1629                     qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), d->ram->log_buf);
1630         }
1631         break;
1632     case QXL_IO_RESET:
1633         qxl_hard_reset(d, 0);
1634         break;
1635     case QXL_IO_MEMSLOT_ADD:
1636         if (val >= NUM_MEMSLOTS) {
1637             qxl_set_guest_bug(d, "QXL_IO_MEMSLOT_ADD: val out of range");
1638             break;
1639         }
1640         if (d->guest_slots[val].active) {
1641             qxl_set_guest_bug(d,
1642                         "QXL_IO_MEMSLOT_ADD: memory slot already active");
1643             break;
1644         }
1645         d->guest_slots[val].slot = d->ram->mem_slot;
1646         qxl_add_memslot(d, val, 0, async);
1647         break;
1648     case QXL_IO_MEMSLOT_DEL:
1649         if (val >= NUM_MEMSLOTS) {
1650             qxl_set_guest_bug(d, "QXL_IO_MEMSLOT_DEL: val out of range");
1651             break;
1652         }
1653         qxl_del_memslot(d, val);
1654         break;
1655     case QXL_IO_CREATE_PRIMARY:
1656         if (val != 0) {
1657             qxl_set_guest_bug(d, "QXL_IO_CREATE_PRIMARY (async=%d): val != 0",
1658                           async);
1659             goto cancel_async;
1660         }
1661         d->guest_primary.surface = d->ram->create_surface;
1662         qxl_create_guest_primary(d, 0, async);
1663         break;
1664     case QXL_IO_DESTROY_PRIMARY:
1665         if (val != 0) {
1666             qxl_set_guest_bug(d, "QXL_IO_DESTROY_PRIMARY (async=%d): val != 0",
1667                           async);
1668             goto cancel_async;
1669         }
1670         if (!qxl_destroy_primary(d, async)) {
1671             trace_qxl_io_destroy_primary_ignored(d->id,
1672                                                  qxl_mode_to_string(d->mode));
1673             goto cancel_async;
1674         }
1675         break;
1676     case QXL_IO_DESTROY_SURFACE_WAIT:
1677         if (val >= d->ssd.num_surfaces) {
1678             qxl_set_guest_bug(d, "QXL_IO_DESTROY_SURFACE (async=%d):"
1679                              "%" PRIu64 " >= NUM_SURFACES", async, val);
1680             goto cancel_async;
1681         }
1682         qxl_spice_destroy_surface_wait(d, val, async);
1683         break;
1684     case QXL_IO_FLUSH_RELEASE: {
1685         QXLReleaseRing *ring = &d->ram->release_ring;
1686         if (ring->prod - ring->cons + 1 == ring->num_items) {
1687             fprintf(stderr,
1688                 "ERROR: no flush, full release ring [p%d,%dc]\n",
1689                 ring->prod, ring->cons);
1690         }
1691         qxl_push_free_res(d, 1 /* flush */);
1692         break;
1693     }
1694     case QXL_IO_FLUSH_SURFACES_ASYNC:
1695         qxl_spice_flush_surfaces_async(d);
1696         break;
1697     case QXL_IO_DESTROY_ALL_SURFACES:
1698         d->mode = QXL_MODE_UNDEFINED;
1699         qxl_spice_destroy_surfaces(d, async);
1700         break;
1701     case QXL_IO_MONITORS_CONFIG_ASYNC:
1702         qxl_spice_monitors_config_async(d, 0);
1703         break;
1704     default:
1705         qxl_set_guest_bug(d, "%s: unexpected ioport=0x%x\n", __func__, io_port);
1706     }
1707     return;
1708 cancel_async:
1709     if (async) {
1710         qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
1711         qemu_mutex_lock(&d->async_lock);
1712         d->current_async = QXL_UNDEFINED_IO;
1713         qemu_mutex_unlock(&d->async_lock);
1714     }
1715 }
1716 
1717 static uint64_t ioport_read(void *opaque, hwaddr addr,
1718                             unsigned size)
1719 {
1720     PCIQXLDevice *qxl = opaque;
1721 
1722     trace_qxl_io_read_unexpected(qxl->id);
1723     return 0xff;
1724 }
1725 
1726 static const MemoryRegionOps qxl_io_ops = {
1727     .read = ioport_read,
1728     .write = ioport_write,
1729     .valid = {
1730         .min_access_size = 1,
1731         .max_access_size = 1,
1732     },
1733 };
1734 
1735 static void qxl_update_irq_bh(void *opaque)
1736 {
1737     PCIQXLDevice *d = opaque;
1738     qxl_update_irq(d);
1739 }
1740 
1741 static void qxl_send_events(PCIQXLDevice *d, uint32_t events)
1742 {
1743     uint32_t old_pending;
1744     uint32_t le_events = cpu_to_le32(events);
1745 
1746     trace_qxl_send_events(d->id, events);
1747     if (!qemu_spice_display_is_running(&d->ssd)) {
1748         /* spice-server tracks guest running state and should not do this */
1749         fprintf(stderr, "%s: spice-server bug: guest stopped, ignoring\n",
1750                 __func__);
1751         trace_qxl_send_events_vm_stopped(d->id, events);
1752         return;
1753     }
1754     old_pending = atomic_fetch_or(&d->ram->int_pending, le_events);
1755     if ((old_pending & le_events) == le_events) {
1756         return;
1757     }
1758     qemu_bh_schedule(d->update_irq);
1759 }
1760 
1761 /* graphics console */
1762 
1763 static void qxl_hw_update(void *opaque)
1764 {
1765     PCIQXLDevice *qxl = opaque;
1766 
1767     qxl_render_update(qxl);
1768 }
1769 
1770 static void qxl_dirty_surfaces(PCIQXLDevice *qxl)
1771 {
1772     uintptr_t vram_start;
1773     int i;
1774 
1775     if (qxl->mode != QXL_MODE_NATIVE && qxl->mode != QXL_MODE_COMPAT) {
1776         return;
1777     }
1778 
1779     /* dirty the primary surface */
1780     qxl_set_dirty(&qxl->vga.vram, qxl->shadow_rom.draw_area_offset,
1781                   qxl->shadow_rom.surface0_area_size);
1782 
1783     vram_start = (uintptr_t)memory_region_get_ram_ptr(&qxl->vram_bar);
1784 
1785     /* dirty the off-screen surfaces */
1786     for (i = 0; i < qxl->ssd.num_surfaces; i++) {
1787         QXLSurfaceCmd *cmd;
1788         intptr_t surface_offset;
1789         int surface_size;
1790 
1791         if (qxl->guest_surfaces.cmds[i] == 0) {
1792             continue;
1793         }
1794 
1795         cmd = qxl_phys2virt(qxl, qxl->guest_surfaces.cmds[i],
1796                             MEMSLOT_GROUP_GUEST);
1797         assert(cmd);
1798         assert(cmd->type == QXL_SURFACE_CMD_CREATE);
1799         surface_offset = (intptr_t)qxl_phys2virt(qxl,
1800                                                  cmd->u.surface_create.data,
1801                                                  MEMSLOT_GROUP_GUEST);
1802         assert(surface_offset);
1803         surface_offset -= vram_start;
1804         surface_size = cmd->u.surface_create.height *
1805                        abs(cmd->u.surface_create.stride);
1806         trace_qxl_surfaces_dirty(qxl->id, i, (int)surface_offset, surface_size);
1807         qxl_set_dirty(&qxl->vram_bar, surface_offset, surface_size);
1808     }
1809 }
1810 
1811 static void qxl_vm_change_state_handler(void *opaque, int running,
1812                                         RunState state)
1813 {
1814     PCIQXLDevice *qxl = opaque;
1815 
1816     if (running) {
1817         /*
1818          * if qxl_send_events was called from spice server context before
1819          * migration ended, qxl_update_irq for these events might not have been
1820          * called
1821          */
1822          qxl_update_irq(qxl);
1823     } else {
1824         /* make sure surfaces are saved before migration */
1825         qxl_dirty_surfaces(qxl);
1826     }
1827 }
1828 
1829 /* display change listener */
1830 
1831 static void display_update(DisplayChangeListener *dcl,
1832                            int x, int y, int w, int h)
1833 {
1834     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1835 
1836     if (qxl->mode == QXL_MODE_VGA) {
1837         qemu_spice_display_update(&qxl->ssd, x, y, w, h);
1838     }
1839 }
1840 
1841 static void display_switch(DisplayChangeListener *dcl,
1842                            struct DisplaySurface *surface)
1843 {
1844     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1845 
1846     qxl->ssd.ds = surface;
1847     if (qxl->mode == QXL_MODE_VGA) {
1848         qemu_spice_display_switch(&qxl->ssd, surface);
1849     }
1850 }
1851 
1852 static void display_refresh(DisplayChangeListener *dcl)
1853 {
1854     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1855 
1856     if (qxl->mode == QXL_MODE_VGA) {
1857         qemu_spice_display_refresh(&qxl->ssd);
1858     }
1859 }
1860 
1861 static DisplayChangeListenerOps display_listener_ops = {
1862     .dpy_name        = "spice/qxl",
1863     .dpy_gfx_update  = display_update,
1864     .dpy_gfx_switch  = display_switch,
1865     .dpy_refresh     = display_refresh,
1866 };
1867 
1868 static void qxl_init_ramsize(PCIQXLDevice *qxl)
1869 {
1870     /* vga mode framebuffer / primary surface (bar 0, first part) */
1871     if (qxl->vgamem_size_mb < 8) {
1872         qxl->vgamem_size_mb = 8;
1873     }
1874     /* XXX: we round vgamem_size_mb up to a nearest power of two and it must be
1875      * less than vga_common_init()'s maximum on qxl->vga.vram_size (512 now).
1876      */
1877     if (qxl->vgamem_size_mb > 256) {
1878         qxl->vgamem_size_mb = 256;
1879     }
1880     qxl->vgamem_size = qxl->vgamem_size_mb * 1024 * 1024;
1881 
1882     /* vga ram (bar 0, total) */
1883     if (qxl->ram_size_mb != -1) {
1884         qxl->vga.vram_size = qxl->ram_size_mb * 1024 * 1024;
1885     }
1886     if (qxl->vga.vram_size < qxl->vgamem_size * 2) {
1887         qxl->vga.vram_size = qxl->vgamem_size * 2;
1888     }
1889 
1890     /* vram32 (surfaces, 32bit, bar 1) */
1891     if (qxl->vram32_size_mb != -1) {
1892         qxl->vram32_size = qxl->vram32_size_mb * 1024 * 1024;
1893     }
1894     if (qxl->vram32_size < 4096) {
1895         qxl->vram32_size = 4096;
1896     }
1897 
1898     /* vram (surfaces, 64bit, bar 4+5) */
1899     if (qxl->vram_size_mb != -1) {
1900         qxl->vram_size = qxl->vram_size_mb * 1024 * 1024;
1901     }
1902     if (qxl->vram_size < qxl->vram32_size) {
1903         qxl->vram_size = qxl->vram32_size;
1904     }
1905 
1906     if (qxl->revision == 1) {
1907         qxl->vram32_size = 4096;
1908         qxl->vram_size = 4096;
1909     }
1910     qxl->vgamem_size = pow2ceil(qxl->vgamem_size);
1911     qxl->vga.vram_size = pow2ceil(qxl->vga.vram_size);
1912     qxl->vram32_size = pow2ceil(qxl->vram32_size);
1913     qxl->vram_size = pow2ceil(qxl->vram_size);
1914 }
1915 
1916 static void qxl_realize_common(PCIQXLDevice *qxl, Error **errp)
1917 {
1918     uint8_t* config = qxl->pci.config;
1919     uint32_t pci_device_rev;
1920     uint32_t io_size;
1921 
1922     qxl->mode = QXL_MODE_UNDEFINED;
1923     qxl->generation = 1;
1924     qxl->num_memslots = NUM_MEMSLOTS;
1925     qemu_mutex_init(&qxl->track_lock);
1926     qemu_mutex_init(&qxl->async_lock);
1927     qxl->current_async = QXL_UNDEFINED_IO;
1928     qxl->guest_bug = 0;
1929 
1930     switch (qxl->revision) {
1931     case 1: /* spice 0.4 -- qxl-1 */
1932         pci_device_rev = QXL_REVISION_STABLE_V04;
1933         io_size = 8;
1934         break;
1935     case 2: /* spice 0.6 -- qxl-2 */
1936         pci_device_rev = QXL_REVISION_STABLE_V06;
1937         io_size = 16;
1938         break;
1939     case 3: /* qxl-3 */
1940         pci_device_rev = QXL_REVISION_STABLE_V10;
1941         io_size = 32; /* PCI region size must be pow2 */
1942         break;
1943     case 4: /* qxl-4 */
1944         pci_device_rev = QXL_REVISION_STABLE_V12;
1945         io_size = pow2ceil(QXL_IO_RANGE_SIZE);
1946         break;
1947     default:
1948         error_setg(errp, "Invalid revision %d for qxl device (max %d)",
1949                    qxl->revision, QXL_DEFAULT_REVISION);
1950         return;
1951     }
1952 
1953     pci_set_byte(&config[PCI_REVISION_ID], pci_device_rev);
1954     pci_set_byte(&config[PCI_INTERRUPT_PIN], 1);
1955 
1956     qxl->rom_size = qxl_rom_size();
1957     memory_region_init_ram(&qxl->rom_bar, OBJECT(qxl), "qxl.vrom",
1958                            qxl->rom_size, &error_abort);
1959     vmstate_register_ram(&qxl->rom_bar, &qxl->pci.qdev);
1960     init_qxl_rom(qxl);
1961     init_qxl_ram(qxl);
1962 
1963     qxl->guest_surfaces.cmds = g_new0(QXLPHYSICAL, qxl->ssd.num_surfaces);
1964     memory_region_init_ram(&qxl->vram_bar, OBJECT(qxl), "qxl.vram",
1965                            qxl->vram_size, &error_abort);
1966     vmstate_register_ram(&qxl->vram_bar, &qxl->pci.qdev);
1967     memory_region_init_alias(&qxl->vram32_bar, OBJECT(qxl), "qxl.vram32",
1968                              &qxl->vram_bar, 0, qxl->vram32_size);
1969 
1970     memory_region_init_io(&qxl->io_bar, OBJECT(qxl), &qxl_io_ops, qxl,
1971                           "qxl-ioports", io_size);
1972     if (qxl->id == 0) {
1973         vga_dirty_log_start(&qxl->vga);
1974     }
1975     memory_region_set_flush_coalesced(&qxl->io_bar);
1976 
1977 
1978     pci_register_bar(&qxl->pci, QXL_IO_RANGE_INDEX,
1979                      PCI_BASE_ADDRESS_SPACE_IO, &qxl->io_bar);
1980 
1981     pci_register_bar(&qxl->pci, QXL_ROM_RANGE_INDEX,
1982                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->rom_bar);
1983 
1984     pci_register_bar(&qxl->pci, QXL_RAM_RANGE_INDEX,
1985                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vga.vram);
1986 
1987     pci_register_bar(&qxl->pci, QXL_VRAM_RANGE_INDEX,
1988                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vram32_bar);
1989 
1990     if (qxl->vram32_size < qxl->vram_size) {
1991         /*
1992          * Make the 64bit vram bar show up only in case it is
1993          * configured to be larger than the 32bit vram bar.
1994          */
1995         pci_register_bar(&qxl->pci, QXL_VRAM64_RANGE_INDEX,
1996                          PCI_BASE_ADDRESS_SPACE_MEMORY |
1997                          PCI_BASE_ADDRESS_MEM_TYPE_64 |
1998                          PCI_BASE_ADDRESS_MEM_PREFETCH,
1999                          &qxl->vram_bar);
2000     }
2001 
2002     /* print pci bar details */
2003     dprint(qxl, 1, "ram/%s: %d MB [region 0]\n",
2004            qxl->id == 0 ? "pri" : "sec",
2005            qxl->vga.vram_size / (1024*1024));
2006     dprint(qxl, 1, "vram/32: %d MB [region 1]\n",
2007            qxl->vram32_size / (1024*1024));
2008     dprint(qxl, 1, "vram/64: %d MB %s\n",
2009            qxl->vram_size / (1024*1024),
2010            qxl->vram32_size < qxl->vram_size ? "[region 4]" : "[unmapped]");
2011 
2012     qxl->ssd.qxl.base.sif = &qxl_interface.base;
2013     if (qemu_spice_add_display_interface(&qxl->ssd.qxl, qxl->vga.con) != 0) {
2014         error_setg(errp, "qxl interface %d.%d not supported by spice-server",
2015                    SPICE_INTERFACE_QXL_MAJOR, SPICE_INTERFACE_QXL_MINOR);
2016         return;
2017     }
2018     qemu_add_vm_change_state_handler(qxl_vm_change_state_handler, qxl);
2019 
2020     qxl->update_irq = qemu_bh_new(qxl_update_irq_bh, qxl);
2021     qxl_reset_state(qxl);
2022 
2023     qxl->update_area_bh = qemu_bh_new(qxl_render_update_area_bh, qxl);
2024     qxl->ssd.cursor_bh = qemu_bh_new(qemu_spice_cursor_refresh_bh, &qxl->ssd);
2025 }
2026 
2027 static void qxl_realize_primary(PCIDevice *dev, Error **errp)
2028 {
2029     PCIQXLDevice *qxl = DO_UPCAST(PCIQXLDevice, pci, dev);
2030     VGACommonState *vga = &qxl->vga;
2031     Error *local_err = NULL;
2032 
2033     qxl->id = 0;
2034     qxl_init_ramsize(qxl);
2035     vga->vbe_size = qxl->vgamem_size;
2036     vga->vram_size_mb = qxl->vga.vram_size >> 20;
2037     vga_common_init(vga, OBJECT(dev), true);
2038     vga_init(vga, OBJECT(dev),
2039              pci_address_space(dev), pci_address_space_io(dev), false);
2040     portio_list_init(&qxl->vga_port_list, OBJECT(dev), qxl_vga_portio_list,
2041                      vga, "vga");
2042     portio_list_set_flush_coalesced(&qxl->vga_port_list);
2043     portio_list_add(&qxl->vga_port_list, pci_address_space_io(dev), 0x3b0);
2044 
2045     vga->con = graphic_console_init(DEVICE(dev), 0, &qxl_ops, qxl);
2046     qemu_spice_display_init_common(&qxl->ssd);
2047 
2048     qxl_realize_common(qxl, &local_err);
2049     if (local_err) {
2050         error_propagate(errp, local_err);
2051         return;
2052     }
2053 
2054     qxl->ssd.dcl.ops = &display_listener_ops;
2055     qxl->ssd.dcl.con = vga->con;
2056     register_displaychangelistener(&qxl->ssd.dcl);
2057 }
2058 
2059 static void qxl_realize_secondary(PCIDevice *dev, Error **errp)
2060 {
2061     static int device_id = 1;
2062     PCIQXLDevice *qxl = DO_UPCAST(PCIQXLDevice, pci, dev);
2063 
2064     qxl->id = device_id++;
2065     qxl_init_ramsize(qxl);
2066     memory_region_init_ram(&qxl->vga.vram, OBJECT(dev), "qxl.vgavram",
2067                            qxl->vga.vram_size, &error_abort);
2068     vmstate_register_ram(&qxl->vga.vram, &qxl->pci.qdev);
2069     qxl->vga.vram_ptr = memory_region_get_ram_ptr(&qxl->vga.vram);
2070     qxl->vga.con = graphic_console_init(DEVICE(dev), 0, &qxl_ops, qxl);
2071 
2072     qxl_realize_common(qxl, errp);
2073 }
2074 
2075 static void qxl_pre_save(void *opaque)
2076 {
2077     PCIQXLDevice* d = opaque;
2078     uint8_t *ram_start = d->vga.vram_ptr;
2079 
2080     trace_qxl_pre_save(d->id);
2081     if (d->last_release == NULL) {
2082         d->last_release_offset = 0;
2083     } else {
2084         d->last_release_offset = (uint8_t *)d->last_release - ram_start;
2085     }
2086     assert(d->last_release_offset < d->vga.vram_size);
2087 }
2088 
2089 static int qxl_pre_load(void *opaque)
2090 {
2091     PCIQXLDevice* d = opaque;
2092 
2093     trace_qxl_pre_load(d->id);
2094     qxl_hard_reset(d, 1);
2095     qxl_exit_vga_mode(d);
2096     return 0;
2097 }
2098 
2099 static void qxl_create_memslots(PCIQXLDevice *d)
2100 {
2101     int i;
2102 
2103     for (i = 0; i < NUM_MEMSLOTS; i++) {
2104         if (!d->guest_slots[i].active) {
2105             continue;
2106         }
2107         qxl_add_memslot(d, i, 0, QXL_SYNC);
2108     }
2109 }
2110 
2111 static int qxl_post_load(void *opaque, int version)
2112 {
2113     PCIQXLDevice* d = opaque;
2114     uint8_t *ram_start = d->vga.vram_ptr;
2115     QXLCommandExt *cmds;
2116     int in, out, newmode;
2117 
2118     assert(d->last_release_offset < d->vga.vram_size);
2119     if (d->last_release_offset == 0) {
2120         d->last_release = NULL;
2121     } else {
2122         d->last_release = (QXLReleaseInfo *)(ram_start + d->last_release_offset);
2123     }
2124 
2125     d->modes = (QXLModes*)((uint8_t*)d->rom + d->rom->modes_offset);
2126 
2127     trace_qxl_post_load(d->id, qxl_mode_to_string(d->mode));
2128     newmode = d->mode;
2129     d->mode = QXL_MODE_UNDEFINED;
2130 
2131     switch (newmode) {
2132     case QXL_MODE_UNDEFINED:
2133         qxl_create_memslots(d);
2134         break;
2135     case QXL_MODE_VGA:
2136         qxl_create_memslots(d);
2137         qxl_enter_vga_mode(d);
2138         break;
2139     case QXL_MODE_NATIVE:
2140         qxl_create_memslots(d);
2141         qxl_create_guest_primary(d, 1, QXL_SYNC);
2142 
2143         /* replay surface-create and cursor-set commands */
2144         cmds = g_malloc0(sizeof(QXLCommandExt) * (d->ssd.num_surfaces + 1));
2145         for (in = 0, out = 0; in < d->ssd.num_surfaces; in++) {
2146             if (d->guest_surfaces.cmds[in] == 0) {
2147                 continue;
2148             }
2149             cmds[out].cmd.data = d->guest_surfaces.cmds[in];
2150             cmds[out].cmd.type = QXL_CMD_SURFACE;
2151             cmds[out].group_id = MEMSLOT_GROUP_GUEST;
2152             out++;
2153         }
2154         if (d->guest_cursor) {
2155             cmds[out].cmd.data = d->guest_cursor;
2156             cmds[out].cmd.type = QXL_CMD_CURSOR;
2157             cmds[out].group_id = MEMSLOT_GROUP_GUEST;
2158             out++;
2159         }
2160         qxl_spice_loadvm_commands(d, cmds, out);
2161         g_free(cmds);
2162         if (d->guest_monitors_config) {
2163             qxl_spice_monitors_config_async(d, 1);
2164         }
2165         break;
2166     case QXL_MODE_COMPAT:
2167         /* note: no need to call qxl_create_memslots, qxl_set_mode
2168          * creates the mem slot. */
2169         qxl_set_mode(d, d->shadow_rom.mode, 1);
2170         break;
2171     }
2172     return 0;
2173 }
2174 
2175 #define QXL_SAVE_VERSION 21
2176 
2177 static bool qxl_monitors_config_needed(void *opaque)
2178 {
2179     PCIQXLDevice *qxl = opaque;
2180 
2181     return qxl->guest_monitors_config != 0;
2182 }
2183 
2184 
2185 static VMStateDescription qxl_memslot = {
2186     .name               = "qxl-memslot",
2187     .version_id         = QXL_SAVE_VERSION,
2188     .minimum_version_id = QXL_SAVE_VERSION,
2189     .fields = (VMStateField[]) {
2190         VMSTATE_UINT64(slot.mem_start, struct guest_slots),
2191         VMSTATE_UINT64(slot.mem_end,   struct guest_slots),
2192         VMSTATE_UINT32(active,         struct guest_slots),
2193         VMSTATE_END_OF_LIST()
2194     }
2195 };
2196 
2197 static VMStateDescription qxl_surface = {
2198     .name               = "qxl-surface",
2199     .version_id         = QXL_SAVE_VERSION,
2200     .minimum_version_id = QXL_SAVE_VERSION,
2201     .fields = (VMStateField[]) {
2202         VMSTATE_UINT32(width,      QXLSurfaceCreate),
2203         VMSTATE_UINT32(height,     QXLSurfaceCreate),
2204         VMSTATE_INT32(stride,      QXLSurfaceCreate),
2205         VMSTATE_UINT32(format,     QXLSurfaceCreate),
2206         VMSTATE_UINT32(position,   QXLSurfaceCreate),
2207         VMSTATE_UINT32(mouse_mode, QXLSurfaceCreate),
2208         VMSTATE_UINT32(flags,      QXLSurfaceCreate),
2209         VMSTATE_UINT32(type,       QXLSurfaceCreate),
2210         VMSTATE_UINT64(mem,        QXLSurfaceCreate),
2211         VMSTATE_END_OF_LIST()
2212     }
2213 };
2214 
2215 static VMStateDescription qxl_vmstate_monitors_config = {
2216     .name               = "qxl/monitors-config",
2217     .version_id         = 1,
2218     .minimum_version_id = 1,
2219     .fields = (VMStateField[]) {
2220         VMSTATE_UINT64(guest_monitors_config, PCIQXLDevice),
2221         VMSTATE_END_OF_LIST()
2222     },
2223 };
2224 
2225 static VMStateDescription qxl_vmstate = {
2226     .name               = "qxl",
2227     .version_id         = QXL_SAVE_VERSION,
2228     .minimum_version_id = QXL_SAVE_VERSION,
2229     .pre_save           = qxl_pre_save,
2230     .pre_load           = qxl_pre_load,
2231     .post_load          = qxl_post_load,
2232     .fields = (VMStateField[]) {
2233         VMSTATE_PCI_DEVICE(pci, PCIQXLDevice),
2234         VMSTATE_STRUCT(vga, PCIQXLDevice, 0, vmstate_vga_common, VGACommonState),
2235         VMSTATE_UINT32(shadow_rom.mode, PCIQXLDevice),
2236         VMSTATE_UINT32(num_free_res, PCIQXLDevice),
2237         VMSTATE_UINT32(last_release_offset, PCIQXLDevice),
2238         VMSTATE_UINT32(mode, PCIQXLDevice),
2239         VMSTATE_UINT32(ssd.unique, PCIQXLDevice),
2240         VMSTATE_INT32_EQUAL(num_memslots, PCIQXLDevice),
2241         VMSTATE_STRUCT_ARRAY(guest_slots, PCIQXLDevice, NUM_MEMSLOTS, 0,
2242                              qxl_memslot, struct guest_slots),
2243         VMSTATE_STRUCT(guest_primary.surface, PCIQXLDevice, 0,
2244                        qxl_surface, QXLSurfaceCreate),
2245         VMSTATE_INT32_EQUAL(ssd.num_surfaces, PCIQXLDevice),
2246         VMSTATE_VARRAY_INT32(guest_surfaces.cmds, PCIQXLDevice,
2247                              ssd.num_surfaces, 0,
2248                              vmstate_info_uint64, uint64_t),
2249         VMSTATE_UINT64(guest_cursor, PCIQXLDevice),
2250         VMSTATE_END_OF_LIST()
2251     },
2252     .subsections = (VMStateSubsection[]) {
2253         {
2254             .vmsd = &qxl_vmstate_monitors_config,
2255             .needed = qxl_monitors_config_needed,
2256         }, {
2257             /* empty */
2258         }
2259     }
2260 };
2261 
2262 static Property qxl_properties[] = {
2263         DEFINE_PROP_UINT32("ram_size", PCIQXLDevice, vga.vram_size,
2264                            64 * 1024 * 1024),
2265         DEFINE_PROP_UINT32("vram_size", PCIQXLDevice, vram32_size,
2266                            64 * 1024 * 1024),
2267         DEFINE_PROP_UINT32("revision", PCIQXLDevice, revision,
2268                            QXL_DEFAULT_REVISION),
2269         DEFINE_PROP_UINT32("debug", PCIQXLDevice, debug, 0),
2270         DEFINE_PROP_UINT32("guestdebug", PCIQXLDevice, guestdebug, 0),
2271         DEFINE_PROP_UINT32("cmdlog", PCIQXLDevice, cmdlog, 0),
2272         DEFINE_PROP_UINT32("ram_size_mb",  PCIQXLDevice, ram_size_mb, -1),
2273         DEFINE_PROP_UINT32("vram_size_mb", PCIQXLDevice, vram32_size_mb, -1),
2274         DEFINE_PROP_UINT32("vram64_size_mb", PCIQXLDevice, vram_size_mb, -1),
2275         DEFINE_PROP_UINT32("vgamem_mb", PCIQXLDevice, vgamem_size_mb, 16),
2276         DEFINE_PROP_INT32("surfaces", PCIQXLDevice, ssd.num_surfaces, 1024),
2277         DEFINE_PROP_END_OF_LIST(),
2278 };
2279 
2280 static void qxl_primary_class_init(ObjectClass *klass, void *data)
2281 {
2282     DeviceClass *dc = DEVICE_CLASS(klass);
2283     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2284 
2285     k->realize = qxl_realize_primary;
2286     k->romfile = "vgabios-qxl.bin";
2287     k->vendor_id = REDHAT_PCI_VENDOR_ID;
2288     k->device_id = QXL_DEVICE_ID_STABLE;
2289     k->class_id = PCI_CLASS_DISPLAY_VGA;
2290     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
2291     dc->desc = "Spice QXL GPU (primary, vga compatible)";
2292     dc->reset = qxl_reset_handler;
2293     dc->vmsd = &qxl_vmstate;
2294     dc->props = qxl_properties;
2295     dc->hotpluggable = false;
2296 }
2297 
2298 static const TypeInfo qxl_primary_info = {
2299     .name          = "qxl-vga",
2300     .parent        = TYPE_PCI_DEVICE,
2301     .instance_size = sizeof(PCIQXLDevice),
2302     .class_init    = qxl_primary_class_init,
2303 };
2304 
2305 static void qxl_secondary_class_init(ObjectClass *klass, void *data)
2306 {
2307     DeviceClass *dc = DEVICE_CLASS(klass);
2308     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2309 
2310     k->realize = qxl_realize_secondary;
2311     k->vendor_id = REDHAT_PCI_VENDOR_ID;
2312     k->device_id = QXL_DEVICE_ID_STABLE;
2313     k->class_id = PCI_CLASS_DISPLAY_OTHER;
2314     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
2315     dc->desc = "Spice QXL GPU (secondary)";
2316     dc->reset = qxl_reset_handler;
2317     dc->vmsd = &qxl_vmstate;
2318     dc->props = qxl_properties;
2319 }
2320 
2321 static const TypeInfo qxl_secondary_info = {
2322     .name          = "qxl",
2323     .parent        = TYPE_PCI_DEVICE,
2324     .instance_size = sizeof(PCIQXLDevice),
2325     .class_init    = qxl_secondary_class_init,
2326 };
2327 
2328 static void qxl_register_types(void)
2329 {
2330     type_register_static(&qxl_primary_info);
2331     type_register_static(&qxl_secondary_info);
2332 }
2333 
2334 type_init(qxl_register_types)
2335