xref: /qemu/hw/display/qxl.c (revision 72ac97cd)
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     QXL_MODE_EX(3840, 2160), /* 4k mainstream */
124     QXL_MODE_EX(4096, 2160), /* 4k            */
125     QXL_MODE_EX(7680, 4320), /* 8k mainstream */
126     QXL_MODE_EX(8192, 4320), /* 8k            */
127 };
128 
129 static void qxl_send_events(PCIQXLDevice *d, uint32_t events);
130 static int qxl_destroy_primary(PCIQXLDevice *d, qxl_async_io async);
131 static void qxl_reset_memslots(PCIQXLDevice *d);
132 static void qxl_reset_surfaces(PCIQXLDevice *d);
133 static void qxl_ring_set_dirty(PCIQXLDevice *qxl);
134 
135 void qxl_set_guest_bug(PCIQXLDevice *qxl, const char *msg, ...)
136 {
137     trace_qxl_set_guest_bug(qxl->id);
138     qxl_send_events(qxl, QXL_INTERRUPT_ERROR);
139     qxl->guest_bug = 1;
140     if (qxl->guestdebug) {
141         va_list ap;
142         va_start(ap, msg);
143         fprintf(stderr, "qxl-%d: guest bug: ", qxl->id);
144         vfprintf(stderr, msg, ap);
145         fprintf(stderr, "\n");
146         va_end(ap);
147     }
148 }
149 
150 static void qxl_clear_guest_bug(PCIQXLDevice *qxl)
151 {
152     qxl->guest_bug = 0;
153 }
154 
155 void qxl_spice_update_area(PCIQXLDevice *qxl, uint32_t surface_id,
156                            struct QXLRect *area, struct QXLRect *dirty_rects,
157                            uint32_t num_dirty_rects,
158                            uint32_t clear_dirty_region,
159                            qxl_async_io async, struct QXLCookie *cookie)
160 {
161     trace_qxl_spice_update_area(qxl->id, surface_id, area->left, area->right,
162                                 area->top, area->bottom);
163     trace_qxl_spice_update_area_rest(qxl->id, num_dirty_rects,
164                                      clear_dirty_region);
165     if (async == QXL_SYNC) {
166         spice_qxl_update_area(&qxl->ssd.qxl, surface_id, area,
167                         dirty_rects, num_dirty_rects, clear_dirty_region);
168     } else {
169         assert(cookie != NULL);
170         spice_qxl_update_area_async(&qxl->ssd.qxl, surface_id, area,
171                                     clear_dirty_region, (uintptr_t)cookie);
172     }
173 }
174 
175 static void qxl_spice_destroy_surface_wait_complete(PCIQXLDevice *qxl,
176                                                     uint32_t id)
177 {
178     trace_qxl_spice_destroy_surface_wait_complete(qxl->id, id);
179     qemu_mutex_lock(&qxl->track_lock);
180     qxl->guest_surfaces.cmds[id] = 0;
181     qxl->guest_surfaces.count--;
182     qemu_mutex_unlock(&qxl->track_lock);
183 }
184 
185 static void qxl_spice_destroy_surface_wait(PCIQXLDevice *qxl, uint32_t id,
186                                            qxl_async_io async)
187 {
188     QXLCookie *cookie;
189 
190     trace_qxl_spice_destroy_surface_wait(qxl->id, id, async);
191     if (async) {
192         cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
193                                 QXL_IO_DESTROY_SURFACE_ASYNC);
194         cookie->u.surface_id = id;
195         spice_qxl_destroy_surface_async(&qxl->ssd.qxl, id, (uintptr_t)cookie);
196     } else {
197         spice_qxl_destroy_surface_wait(&qxl->ssd.qxl, id);
198         qxl_spice_destroy_surface_wait_complete(qxl, id);
199     }
200 }
201 
202 static void qxl_spice_flush_surfaces_async(PCIQXLDevice *qxl)
203 {
204     trace_qxl_spice_flush_surfaces_async(qxl->id, qxl->guest_surfaces.count,
205                                          qxl->num_free_res);
206     spice_qxl_flush_surfaces_async(&qxl->ssd.qxl,
207         (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
208                                   QXL_IO_FLUSH_SURFACES_ASYNC));
209 }
210 
211 void qxl_spice_loadvm_commands(PCIQXLDevice *qxl, struct QXLCommandExt *ext,
212                                uint32_t count)
213 {
214     trace_qxl_spice_loadvm_commands(qxl->id, ext, count);
215     spice_qxl_loadvm_commands(&qxl->ssd.qxl, ext, count);
216 }
217 
218 void qxl_spice_oom(PCIQXLDevice *qxl)
219 {
220     trace_qxl_spice_oom(qxl->id);
221     spice_qxl_oom(&qxl->ssd.qxl);
222 }
223 
224 void qxl_spice_reset_memslots(PCIQXLDevice *qxl)
225 {
226     trace_qxl_spice_reset_memslots(qxl->id);
227     spice_qxl_reset_memslots(&qxl->ssd.qxl);
228 }
229 
230 static void qxl_spice_destroy_surfaces_complete(PCIQXLDevice *qxl)
231 {
232     trace_qxl_spice_destroy_surfaces_complete(qxl->id);
233     qemu_mutex_lock(&qxl->track_lock);
234     memset(qxl->guest_surfaces.cmds, 0,
235            sizeof(qxl->guest_surfaces.cmds[0]) * qxl->ssd.num_surfaces);
236     qxl->guest_surfaces.count = 0;
237     qemu_mutex_unlock(&qxl->track_lock);
238 }
239 
240 static void qxl_spice_destroy_surfaces(PCIQXLDevice *qxl, qxl_async_io async)
241 {
242     trace_qxl_spice_destroy_surfaces(qxl->id, async);
243     if (async) {
244         spice_qxl_destroy_surfaces_async(&qxl->ssd.qxl,
245                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
246                                           QXL_IO_DESTROY_ALL_SURFACES_ASYNC));
247     } else {
248         spice_qxl_destroy_surfaces(&qxl->ssd.qxl);
249         qxl_spice_destroy_surfaces_complete(qxl);
250     }
251 }
252 
253 static void qxl_spice_monitors_config_async(PCIQXLDevice *qxl, int replay)
254 {
255     trace_qxl_spice_monitors_config(qxl->id);
256     if (replay) {
257         /*
258          * don't use QXL_COOKIE_TYPE_IO:
259          *  - we are not running yet (post_load), we will assert
260          *    in send_events
261          *  - this is not a guest io, but a reply, so async_io isn't set.
262          */
263         spice_qxl_monitors_config_async(&qxl->ssd.qxl,
264                 qxl->guest_monitors_config,
265                 MEMSLOT_GROUP_GUEST,
266                 (uintptr_t)qxl_cookie_new(
267                     QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG,
268                     0));
269     } else {
270         qxl->guest_monitors_config = qxl->ram->monitors_config;
271         spice_qxl_monitors_config_async(&qxl->ssd.qxl,
272                 qxl->ram->monitors_config,
273                 MEMSLOT_GROUP_GUEST,
274                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
275                                           QXL_IO_MONITORS_CONFIG_ASYNC));
276     }
277 }
278 
279 void qxl_spice_reset_image_cache(PCIQXLDevice *qxl)
280 {
281     trace_qxl_spice_reset_image_cache(qxl->id);
282     spice_qxl_reset_image_cache(&qxl->ssd.qxl);
283 }
284 
285 void qxl_spice_reset_cursor(PCIQXLDevice *qxl)
286 {
287     trace_qxl_spice_reset_cursor(qxl->id);
288     spice_qxl_reset_cursor(&qxl->ssd.qxl);
289     qemu_mutex_lock(&qxl->track_lock);
290     qxl->guest_cursor = 0;
291     qemu_mutex_unlock(&qxl->track_lock);
292     if (qxl->ssd.cursor) {
293         cursor_put(qxl->ssd.cursor);
294     }
295     qxl->ssd.cursor = cursor_builtin_hidden();
296 }
297 
298 
299 static inline uint32_t msb_mask(uint32_t val)
300 {
301     uint32_t mask;
302 
303     do {
304         mask = ~(val - 1) & val;
305         val &= ~mask;
306     } while (mask < val);
307 
308     return mask;
309 }
310 
311 static ram_addr_t qxl_rom_size(void)
312 {
313     uint32_t required_rom_size = sizeof(QXLRom) + sizeof(QXLModes) +
314                                  sizeof(qxl_modes);
315     uint32_t rom_size = 8192; /* two pages */
316 
317     QEMU_BUILD_BUG_ON(required_rom_size > rom_size);
318     return rom_size;
319 }
320 
321 static void init_qxl_rom(PCIQXLDevice *d)
322 {
323     QXLRom *rom = memory_region_get_ram_ptr(&d->rom_bar);
324     QXLModes *modes = (QXLModes *)(rom + 1);
325     uint32_t ram_header_size;
326     uint32_t surface0_area_size;
327     uint32_t num_pages;
328     uint32_t fb;
329     int i, n;
330 
331     memset(rom, 0, d->rom_size);
332 
333     rom->magic         = cpu_to_le32(QXL_ROM_MAGIC);
334     rom->id            = cpu_to_le32(d->id);
335     rom->log_level     = cpu_to_le32(d->guestdebug);
336     rom->modes_offset  = cpu_to_le32(sizeof(QXLRom));
337 
338     rom->slot_gen_bits = MEMSLOT_GENERATION_BITS;
339     rom->slot_id_bits  = MEMSLOT_SLOT_BITS;
340     rom->slots_start   = 1;
341     rom->slots_end     = NUM_MEMSLOTS - 1;
342     rom->n_surfaces    = cpu_to_le32(d->ssd.num_surfaces);
343 
344     for (i = 0, n = 0; i < ARRAY_SIZE(qxl_modes); i++) {
345         fb = qxl_modes[i].y_res * qxl_modes[i].stride;
346         if (fb > d->vgamem_size) {
347             continue;
348         }
349         modes->modes[n].id          = cpu_to_le32(i);
350         modes->modes[n].x_res       = cpu_to_le32(qxl_modes[i].x_res);
351         modes->modes[n].y_res       = cpu_to_le32(qxl_modes[i].y_res);
352         modes->modes[n].bits        = cpu_to_le32(qxl_modes[i].bits);
353         modes->modes[n].stride      = cpu_to_le32(qxl_modes[i].stride);
354         modes->modes[n].x_mili      = cpu_to_le32(qxl_modes[i].x_mili);
355         modes->modes[n].y_mili      = cpu_to_le32(qxl_modes[i].y_mili);
356         modes->modes[n].orientation = cpu_to_le32(qxl_modes[i].orientation);
357         n++;
358     }
359     modes->n_modes     = cpu_to_le32(n);
360 
361     ram_header_size    = ALIGN(sizeof(QXLRam), 4096);
362     surface0_area_size = ALIGN(d->vgamem_size, 4096);
363     num_pages          = d->vga.vram_size;
364     num_pages         -= ram_header_size;
365     num_pages         -= surface0_area_size;
366     num_pages          = num_pages / QXL_PAGE_SIZE;
367 
368     rom->draw_area_offset   = cpu_to_le32(0);
369     rom->surface0_area_size = cpu_to_le32(surface0_area_size);
370     rom->pages_offset       = cpu_to_le32(surface0_area_size);
371     rom->num_pages          = cpu_to_le32(num_pages);
372     rom->ram_header_offset  = cpu_to_le32(d->vga.vram_size - ram_header_size);
373 
374     d->shadow_rom = *rom;
375     d->rom        = rom;
376     d->modes      = modes;
377 }
378 
379 static void init_qxl_ram(PCIQXLDevice *d)
380 {
381     uint8_t *buf;
382     uint64_t *item;
383 
384     buf = d->vga.vram_ptr;
385     d->ram = (QXLRam *)(buf + le32_to_cpu(d->shadow_rom.ram_header_offset));
386     d->ram->magic       = cpu_to_le32(QXL_RAM_MAGIC);
387     d->ram->int_pending = cpu_to_le32(0);
388     d->ram->int_mask    = cpu_to_le32(0);
389     d->ram->update_surface = 0;
390     d->ram->monitors_config = 0;
391     SPICE_RING_INIT(&d->ram->cmd_ring);
392     SPICE_RING_INIT(&d->ram->cursor_ring);
393     SPICE_RING_INIT(&d->ram->release_ring);
394     SPICE_RING_PROD_ITEM(d, &d->ram->release_ring, item);
395     assert(item);
396     *item = 0;
397     qxl_ring_set_dirty(d);
398 }
399 
400 /* can be called from spice server thread context */
401 static void qxl_set_dirty(MemoryRegion *mr, ram_addr_t addr, ram_addr_t end)
402 {
403     memory_region_set_dirty(mr, addr, end - addr);
404 }
405 
406 static void qxl_rom_set_dirty(PCIQXLDevice *qxl)
407 {
408     qxl_set_dirty(&qxl->rom_bar, 0, qxl->rom_size);
409 }
410 
411 /* called from spice server thread context only */
412 static void qxl_ram_set_dirty(PCIQXLDevice *qxl, void *ptr)
413 {
414     void *base = qxl->vga.vram_ptr;
415     intptr_t offset;
416 
417     offset = ptr - base;
418     assert(offset < qxl->vga.vram_size);
419     qxl_set_dirty(&qxl->vga.vram, offset, offset + 3);
420 }
421 
422 /* can be called from spice server thread context */
423 static void qxl_ring_set_dirty(PCIQXLDevice *qxl)
424 {
425     ram_addr_t addr = qxl->shadow_rom.ram_header_offset;
426     ram_addr_t end  = qxl->vga.vram_size;
427     qxl_set_dirty(&qxl->vga.vram, addr, end);
428 }
429 
430 /*
431  * keep track of some command state, for savevm/loadvm.
432  * called from spice server thread context only
433  */
434 static int qxl_track_command(PCIQXLDevice *qxl, struct QXLCommandExt *ext)
435 {
436     switch (le32_to_cpu(ext->cmd.type)) {
437     case QXL_CMD_SURFACE:
438     {
439         QXLSurfaceCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
440 
441         if (!cmd) {
442             return 1;
443         }
444         uint32_t id = le32_to_cpu(cmd->surface_id);
445 
446         if (id >= qxl->ssd.num_surfaces) {
447             qxl_set_guest_bug(qxl, "QXL_CMD_SURFACE id %d >= %d", id,
448                               qxl->ssd.num_surfaces);
449             return 1;
450         }
451         if (cmd->type == QXL_SURFACE_CMD_CREATE &&
452             (cmd->u.surface_create.stride & 0x03) != 0) {
453             qxl_set_guest_bug(qxl, "QXL_CMD_SURFACE stride = %d %% 4 != 0\n",
454                               cmd->u.surface_create.stride);
455             return 1;
456         }
457         qemu_mutex_lock(&qxl->track_lock);
458         if (cmd->type == QXL_SURFACE_CMD_CREATE) {
459             qxl->guest_surfaces.cmds[id] = ext->cmd.data;
460             qxl->guest_surfaces.count++;
461             if (qxl->guest_surfaces.max < qxl->guest_surfaces.count)
462                 qxl->guest_surfaces.max = qxl->guest_surfaces.count;
463         }
464         if (cmd->type == QXL_SURFACE_CMD_DESTROY) {
465             qxl->guest_surfaces.cmds[id] = 0;
466             qxl->guest_surfaces.count--;
467         }
468         qemu_mutex_unlock(&qxl->track_lock);
469         break;
470     }
471     case QXL_CMD_CURSOR:
472     {
473         QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
474 
475         if (!cmd) {
476             return 1;
477         }
478         if (cmd->type == QXL_CURSOR_SET) {
479             qemu_mutex_lock(&qxl->track_lock);
480             qxl->guest_cursor = ext->cmd.data;
481             qemu_mutex_unlock(&qxl->track_lock);
482         }
483         break;
484     }
485     }
486     return 0;
487 }
488 
489 /* spice display interface callbacks */
490 
491 static void interface_attach_worker(QXLInstance *sin, QXLWorker *qxl_worker)
492 {
493     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
494 
495     trace_qxl_interface_attach_worker(qxl->id);
496     qxl->ssd.worker = qxl_worker;
497 }
498 
499 static void interface_set_compression_level(QXLInstance *sin, int level)
500 {
501     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
502 
503     trace_qxl_interface_set_compression_level(qxl->id, level);
504     qxl->shadow_rom.compression_level = cpu_to_le32(level);
505     qxl->rom->compression_level = cpu_to_le32(level);
506     qxl_rom_set_dirty(qxl);
507 }
508 
509 static void interface_set_mm_time(QXLInstance *sin, uint32_t mm_time)
510 {
511     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
512 
513     trace_qxl_interface_set_mm_time(qxl->id, mm_time);
514     qxl->shadow_rom.mm_clock = cpu_to_le32(mm_time);
515     qxl->rom->mm_clock = cpu_to_le32(mm_time);
516     qxl_rom_set_dirty(qxl);
517 }
518 
519 static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info)
520 {
521     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
522 
523     trace_qxl_interface_get_init_info(qxl->id);
524     info->memslot_gen_bits = MEMSLOT_GENERATION_BITS;
525     info->memslot_id_bits = MEMSLOT_SLOT_BITS;
526     info->num_memslots = NUM_MEMSLOTS;
527     info->num_memslots_groups = NUM_MEMSLOTS_GROUPS;
528     info->internal_groupslot_id = 0;
529     info->qxl_ram_size =
530         le32_to_cpu(qxl->shadow_rom.num_pages) << QXL_PAGE_BITS;
531     info->n_surfaces = qxl->ssd.num_surfaces;
532 }
533 
534 static const char *qxl_mode_to_string(int mode)
535 {
536     switch (mode) {
537     case QXL_MODE_COMPAT:
538         return "compat";
539     case QXL_MODE_NATIVE:
540         return "native";
541     case QXL_MODE_UNDEFINED:
542         return "undefined";
543     case QXL_MODE_VGA:
544         return "vga";
545     }
546     return "INVALID";
547 }
548 
549 static const char *io_port_to_string(uint32_t io_port)
550 {
551     if (io_port >= QXL_IO_RANGE_SIZE) {
552         return "out of range";
553     }
554     static const char *io_port_to_string[QXL_IO_RANGE_SIZE + 1] = {
555         [QXL_IO_NOTIFY_CMD]             = "QXL_IO_NOTIFY_CMD",
556         [QXL_IO_NOTIFY_CURSOR]          = "QXL_IO_NOTIFY_CURSOR",
557         [QXL_IO_UPDATE_AREA]            = "QXL_IO_UPDATE_AREA",
558         [QXL_IO_UPDATE_IRQ]             = "QXL_IO_UPDATE_IRQ",
559         [QXL_IO_NOTIFY_OOM]             = "QXL_IO_NOTIFY_OOM",
560         [QXL_IO_RESET]                  = "QXL_IO_RESET",
561         [QXL_IO_SET_MODE]               = "QXL_IO_SET_MODE",
562         [QXL_IO_LOG]                    = "QXL_IO_LOG",
563         [QXL_IO_MEMSLOT_ADD]            = "QXL_IO_MEMSLOT_ADD",
564         [QXL_IO_MEMSLOT_DEL]            = "QXL_IO_MEMSLOT_DEL",
565         [QXL_IO_DETACH_PRIMARY]         = "QXL_IO_DETACH_PRIMARY",
566         [QXL_IO_ATTACH_PRIMARY]         = "QXL_IO_ATTACH_PRIMARY",
567         [QXL_IO_CREATE_PRIMARY]         = "QXL_IO_CREATE_PRIMARY",
568         [QXL_IO_DESTROY_PRIMARY]        = "QXL_IO_DESTROY_PRIMARY",
569         [QXL_IO_DESTROY_SURFACE_WAIT]   = "QXL_IO_DESTROY_SURFACE_WAIT",
570         [QXL_IO_DESTROY_ALL_SURFACES]   = "QXL_IO_DESTROY_ALL_SURFACES",
571         [QXL_IO_UPDATE_AREA_ASYNC]      = "QXL_IO_UPDATE_AREA_ASYNC",
572         [QXL_IO_MEMSLOT_ADD_ASYNC]      = "QXL_IO_MEMSLOT_ADD_ASYNC",
573         [QXL_IO_CREATE_PRIMARY_ASYNC]   = "QXL_IO_CREATE_PRIMARY_ASYNC",
574         [QXL_IO_DESTROY_PRIMARY_ASYNC]  = "QXL_IO_DESTROY_PRIMARY_ASYNC",
575         [QXL_IO_DESTROY_SURFACE_ASYNC]  = "QXL_IO_DESTROY_SURFACE_ASYNC",
576         [QXL_IO_DESTROY_ALL_SURFACES_ASYNC]
577                                         = "QXL_IO_DESTROY_ALL_SURFACES_ASYNC",
578         [QXL_IO_FLUSH_SURFACES_ASYNC]   = "QXL_IO_FLUSH_SURFACES_ASYNC",
579         [QXL_IO_FLUSH_RELEASE]          = "QXL_IO_FLUSH_RELEASE",
580         [QXL_IO_MONITORS_CONFIG_ASYNC]  = "QXL_IO_MONITORS_CONFIG_ASYNC",
581     };
582     return io_port_to_string[io_port];
583 }
584 
585 /* called from spice server thread context only */
586 static int interface_get_command(QXLInstance *sin, struct QXLCommandExt *ext)
587 {
588     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
589     SimpleSpiceUpdate *update;
590     QXLCommandRing *ring;
591     QXLCommand *cmd;
592     int notify, ret;
593 
594     trace_qxl_ring_command_check(qxl->id, qxl_mode_to_string(qxl->mode));
595 
596     switch (qxl->mode) {
597     case QXL_MODE_VGA:
598         ret = false;
599         qemu_mutex_lock(&qxl->ssd.lock);
600         update = QTAILQ_FIRST(&qxl->ssd.updates);
601         if (update != NULL) {
602             QTAILQ_REMOVE(&qxl->ssd.updates, update, next);
603             *ext = update->ext;
604             ret = true;
605         }
606         qemu_mutex_unlock(&qxl->ssd.lock);
607         if (ret) {
608             trace_qxl_ring_command_get(qxl->id, qxl_mode_to_string(qxl->mode));
609             qxl_log_command(qxl, "vga", ext);
610         }
611         return ret;
612     case QXL_MODE_COMPAT:
613     case QXL_MODE_NATIVE:
614     case QXL_MODE_UNDEFINED:
615         ring = &qxl->ram->cmd_ring;
616         if (qxl->guest_bug || SPICE_RING_IS_EMPTY(ring)) {
617             return false;
618         }
619         SPICE_RING_CONS_ITEM(qxl, ring, cmd);
620         if (!cmd) {
621             return false;
622         }
623         ext->cmd      = *cmd;
624         ext->group_id = MEMSLOT_GROUP_GUEST;
625         ext->flags    = qxl->cmdflags;
626         SPICE_RING_POP(ring, notify);
627         qxl_ring_set_dirty(qxl);
628         if (notify) {
629             qxl_send_events(qxl, QXL_INTERRUPT_DISPLAY);
630         }
631         qxl->guest_primary.commands++;
632         qxl_track_command(qxl, ext);
633         qxl_log_command(qxl, "cmd", ext);
634         trace_qxl_ring_command_get(qxl->id, qxl_mode_to_string(qxl->mode));
635         return true;
636     default:
637         return false;
638     }
639 }
640 
641 /* called from spice server thread context only */
642 static int interface_req_cmd_notification(QXLInstance *sin)
643 {
644     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
645     int wait = 1;
646 
647     trace_qxl_ring_command_req_notification(qxl->id);
648     switch (qxl->mode) {
649     case QXL_MODE_COMPAT:
650     case QXL_MODE_NATIVE:
651     case QXL_MODE_UNDEFINED:
652         SPICE_RING_CONS_WAIT(&qxl->ram->cmd_ring, wait);
653         qxl_ring_set_dirty(qxl);
654         break;
655     default:
656         /* nothing */
657         break;
658     }
659     return wait;
660 }
661 
662 /* called from spice server thread context only */
663 static inline void qxl_push_free_res(PCIQXLDevice *d, int flush)
664 {
665     QXLReleaseRing *ring = &d->ram->release_ring;
666     uint64_t *item;
667     int notify;
668 
669 #define QXL_FREE_BUNCH_SIZE 32
670 
671     if (ring->prod - ring->cons + 1 == ring->num_items) {
672         /* ring full -- can't push */
673         return;
674     }
675     if (!flush && d->oom_running) {
676         /* collect everything from oom handler before pushing */
677         return;
678     }
679     if (!flush && d->num_free_res < QXL_FREE_BUNCH_SIZE) {
680         /* collect a bit more before pushing */
681         return;
682     }
683 
684     SPICE_RING_PUSH(ring, notify);
685     trace_qxl_ring_res_push(d->id, qxl_mode_to_string(d->mode),
686            d->guest_surfaces.count, d->num_free_res,
687            d->last_release, notify ? "yes" : "no");
688     trace_qxl_ring_res_push_rest(d->id, ring->prod - ring->cons,
689            ring->num_items, ring->prod, ring->cons);
690     if (notify) {
691         qxl_send_events(d, QXL_INTERRUPT_DISPLAY);
692     }
693     SPICE_RING_PROD_ITEM(d, ring, item);
694     if (!item) {
695         return;
696     }
697     *item = 0;
698     d->num_free_res = 0;
699     d->last_release = NULL;
700     qxl_ring_set_dirty(d);
701 }
702 
703 /* called from spice server thread context only */
704 static void interface_release_resource(QXLInstance *sin,
705                                        struct QXLReleaseInfoExt ext)
706 {
707     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
708     QXLReleaseRing *ring;
709     uint64_t *item, id;
710 
711     if (ext.group_id == MEMSLOT_GROUP_HOST) {
712         /* host group -> vga mode update request */
713         QXLCommandExt *cmdext = (void *)(ext.info->id);
714         SimpleSpiceUpdate *update;
715         g_assert(cmdext->cmd.type == QXL_CMD_DRAW);
716         update = container_of(cmdext, SimpleSpiceUpdate, ext);
717         qemu_spice_destroy_update(&qxl->ssd, update);
718         return;
719     }
720 
721     /*
722      * ext->info points into guest-visible memory
723      * pci bar 0, $command.release_info
724      */
725     ring = &qxl->ram->release_ring;
726     SPICE_RING_PROD_ITEM(qxl, ring, item);
727     if (!item) {
728         return;
729     }
730     if (*item == 0) {
731         /* stick head into the ring */
732         id = ext.info->id;
733         ext.info->next = 0;
734         qxl_ram_set_dirty(qxl, &ext.info->next);
735         *item = id;
736         qxl_ring_set_dirty(qxl);
737     } else {
738         /* append item to the list */
739         qxl->last_release->next = ext.info->id;
740         qxl_ram_set_dirty(qxl, &qxl->last_release->next);
741         ext.info->next = 0;
742         qxl_ram_set_dirty(qxl, &ext.info->next);
743     }
744     qxl->last_release = ext.info;
745     qxl->num_free_res++;
746     trace_qxl_ring_res_put(qxl->id, qxl->num_free_res);
747     qxl_push_free_res(qxl, 0);
748 }
749 
750 /* called from spice server thread context only */
751 static int interface_get_cursor_command(QXLInstance *sin, struct QXLCommandExt *ext)
752 {
753     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
754     QXLCursorRing *ring;
755     QXLCommand *cmd;
756     int notify;
757 
758     trace_qxl_ring_cursor_check(qxl->id, qxl_mode_to_string(qxl->mode));
759 
760     switch (qxl->mode) {
761     case QXL_MODE_COMPAT:
762     case QXL_MODE_NATIVE:
763     case QXL_MODE_UNDEFINED:
764         ring = &qxl->ram->cursor_ring;
765         if (SPICE_RING_IS_EMPTY(ring)) {
766             return false;
767         }
768         SPICE_RING_CONS_ITEM(qxl, ring, cmd);
769         if (!cmd) {
770             return false;
771         }
772         ext->cmd      = *cmd;
773         ext->group_id = MEMSLOT_GROUP_GUEST;
774         ext->flags    = qxl->cmdflags;
775         SPICE_RING_POP(ring, notify);
776         qxl_ring_set_dirty(qxl);
777         if (notify) {
778             qxl_send_events(qxl, QXL_INTERRUPT_CURSOR);
779         }
780         qxl->guest_primary.commands++;
781         qxl_track_command(qxl, ext);
782         qxl_log_command(qxl, "csr", ext);
783         if (qxl->id == 0) {
784             qxl_render_cursor(qxl, ext);
785         }
786         trace_qxl_ring_cursor_get(qxl->id, qxl_mode_to_string(qxl->mode));
787         return true;
788     default:
789         return false;
790     }
791 }
792 
793 /* called from spice server thread context only */
794 static int interface_req_cursor_notification(QXLInstance *sin)
795 {
796     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
797     int wait = 1;
798 
799     trace_qxl_ring_cursor_req_notification(qxl->id);
800     switch (qxl->mode) {
801     case QXL_MODE_COMPAT:
802     case QXL_MODE_NATIVE:
803     case QXL_MODE_UNDEFINED:
804         SPICE_RING_CONS_WAIT(&qxl->ram->cursor_ring, wait);
805         qxl_ring_set_dirty(qxl);
806         break;
807     default:
808         /* nothing */
809         break;
810     }
811     return wait;
812 }
813 
814 /* called from spice server thread context */
815 static void interface_notify_update(QXLInstance *sin, uint32_t update_id)
816 {
817     /*
818      * Called by spice-server as a result of a QXL_CMD_UPDATE which is not in
819      * use by xf86-video-qxl and is defined out in the qxl windows driver.
820      * Probably was at some earlier version that is prior to git start (2009),
821      * and is still guest trigerrable.
822      */
823     fprintf(stderr, "%s: deprecated\n", __func__);
824 }
825 
826 /* called from spice server thread context only */
827 static int interface_flush_resources(QXLInstance *sin)
828 {
829     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
830     int ret;
831 
832     ret = qxl->num_free_res;
833     if (ret) {
834         qxl_push_free_res(qxl, 1);
835     }
836     return ret;
837 }
838 
839 static void qxl_create_guest_primary_complete(PCIQXLDevice *d);
840 
841 /* called from spice server thread context only */
842 static void interface_async_complete_io(PCIQXLDevice *qxl, QXLCookie *cookie)
843 {
844     uint32_t current_async;
845 
846     qemu_mutex_lock(&qxl->async_lock);
847     current_async = qxl->current_async;
848     qxl->current_async = QXL_UNDEFINED_IO;
849     qemu_mutex_unlock(&qxl->async_lock);
850 
851     trace_qxl_interface_async_complete_io(qxl->id, current_async, cookie);
852     if (!cookie) {
853         fprintf(stderr, "qxl: %s: error, cookie is NULL\n", __func__);
854         return;
855     }
856     if (cookie && current_async != cookie->io) {
857         fprintf(stderr,
858                 "qxl: %s: error: current_async = %d != %"
859                 PRId64 " = cookie->io\n", __func__, current_async, cookie->io);
860     }
861     switch (current_async) {
862     case QXL_IO_MEMSLOT_ADD_ASYNC:
863     case QXL_IO_DESTROY_PRIMARY_ASYNC:
864     case QXL_IO_UPDATE_AREA_ASYNC:
865     case QXL_IO_FLUSH_SURFACES_ASYNC:
866     case QXL_IO_MONITORS_CONFIG_ASYNC:
867         break;
868     case QXL_IO_CREATE_PRIMARY_ASYNC:
869         qxl_create_guest_primary_complete(qxl);
870         break;
871     case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
872         qxl_spice_destroy_surfaces_complete(qxl);
873         break;
874     case QXL_IO_DESTROY_SURFACE_ASYNC:
875         qxl_spice_destroy_surface_wait_complete(qxl, cookie->u.surface_id);
876         break;
877     default:
878         fprintf(stderr, "qxl: %s: unexpected current_async %d\n", __func__,
879                 current_async);
880     }
881     qxl_send_events(qxl, QXL_INTERRUPT_IO_CMD);
882 }
883 
884 /* called from spice server thread context only */
885 static void interface_update_area_complete(QXLInstance *sin,
886         uint32_t surface_id,
887         QXLRect *dirty, uint32_t num_updated_rects)
888 {
889     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
890     int i;
891     int qxl_i;
892 
893     qemu_mutex_lock(&qxl->ssd.lock);
894     if (surface_id != 0 || !qxl->render_update_cookie_num) {
895         qemu_mutex_unlock(&qxl->ssd.lock);
896         return;
897     }
898     trace_qxl_interface_update_area_complete(qxl->id, surface_id, dirty->left,
899             dirty->right, dirty->top, dirty->bottom);
900     trace_qxl_interface_update_area_complete_rest(qxl->id, num_updated_rects);
901     if (qxl->num_dirty_rects + num_updated_rects > QXL_NUM_DIRTY_RECTS) {
902         /*
903          * overflow - treat this as a full update. Not expected to be common.
904          */
905         trace_qxl_interface_update_area_complete_overflow(qxl->id,
906                                                           QXL_NUM_DIRTY_RECTS);
907         qxl->guest_primary.resized = 1;
908     }
909     if (qxl->guest_primary.resized) {
910         /*
911          * Don't bother copying or scheduling the bh since we will flip
912          * the whole area anyway on completion of the update_area async call
913          */
914         qemu_mutex_unlock(&qxl->ssd.lock);
915         return;
916     }
917     qxl_i = qxl->num_dirty_rects;
918     for (i = 0; i < num_updated_rects; i++) {
919         qxl->dirty[qxl_i++] = dirty[i];
920     }
921     qxl->num_dirty_rects += num_updated_rects;
922     trace_qxl_interface_update_area_complete_schedule_bh(qxl->id,
923                                                          qxl->num_dirty_rects);
924     qemu_bh_schedule(qxl->update_area_bh);
925     qemu_mutex_unlock(&qxl->ssd.lock);
926 }
927 
928 /* called from spice server thread context only */
929 static void interface_async_complete(QXLInstance *sin, uint64_t cookie_token)
930 {
931     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
932     QXLCookie *cookie = (QXLCookie *)(uintptr_t)cookie_token;
933 
934     switch (cookie->type) {
935     case QXL_COOKIE_TYPE_IO:
936         interface_async_complete_io(qxl, cookie);
937         g_free(cookie);
938         break;
939     case QXL_COOKIE_TYPE_RENDER_UPDATE_AREA:
940         qxl_render_update_area_done(qxl, cookie);
941         break;
942     case QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG:
943         break;
944     default:
945         fprintf(stderr, "qxl: %s: unexpected cookie type %d\n",
946                 __func__, cookie->type);
947         g_free(cookie);
948     }
949 }
950 
951 /* called from spice server thread context only */
952 static void interface_set_client_capabilities(QXLInstance *sin,
953                                               uint8_t client_present,
954                                               uint8_t caps[58])
955 {
956     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
957 
958     if (qxl->revision < 4) {
959         trace_qxl_set_client_capabilities_unsupported_by_revision(qxl->id,
960                                                               qxl->revision);
961         return;
962     }
963 
964     if (runstate_check(RUN_STATE_INMIGRATE) ||
965         runstate_check(RUN_STATE_POSTMIGRATE)) {
966         return;
967     }
968 
969     qxl->shadow_rom.client_present = client_present;
970     memcpy(qxl->shadow_rom.client_capabilities, caps,
971            sizeof(qxl->shadow_rom.client_capabilities));
972     qxl->rom->client_present = client_present;
973     memcpy(qxl->rom->client_capabilities, caps,
974            sizeof(qxl->rom->client_capabilities));
975     qxl_rom_set_dirty(qxl);
976 
977     qxl_send_events(qxl, QXL_INTERRUPT_CLIENT);
978 }
979 
980 static uint32_t qxl_crc32(const uint8_t *p, unsigned len)
981 {
982     /*
983      * zlib xors the seed with 0xffffffff, and xors the result
984      * again with 0xffffffff; Both are not done with linux's crc32,
985      * which we want to be compatible with, so undo that.
986      */
987     return crc32(0xffffffff, p, len) ^ 0xffffffff;
988 }
989 
990 /* called from main context only */
991 static int interface_client_monitors_config(QXLInstance *sin,
992                                         VDAgentMonitorsConfig *monitors_config)
993 {
994     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
995     QXLRom *rom = memory_region_get_ram_ptr(&qxl->rom_bar);
996     int i;
997 
998     if (qxl->revision < 4) {
999         trace_qxl_client_monitors_config_unsupported_by_device(qxl->id,
1000                                                                qxl->revision);
1001         return 0;
1002     }
1003     /*
1004      * Older windows drivers set int_mask to 0 when their ISR is called,
1005      * then later set it to ~0. So it doesn't relate to the actual interrupts
1006      * handled. However, they are old, so clearly they don't support this
1007      * interrupt
1008      */
1009     if (qxl->ram->int_mask == 0 || qxl->ram->int_mask == ~0 ||
1010         !(qxl->ram->int_mask & QXL_INTERRUPT_CLIENT_MONITORS_CONFIG)) {
1011         trace_qxl_client_monitors_config_unsupported_by_guest(qxl->id,
1012                                                             qxl->ram->int_mask,
1013                                                             monitors_config);
1014         return 0;
1015     }
1016     if (!monitors_config) {
1017         return 1;
1018     }
1019     memset(&rom->client_monitors_config, 0,
1020            sizeof(rom->client_monitors_config));
1021     rom->client_monitors_config.count = monitors_config->num_of_monitors;
1022     /* monitors_config->flags ignored */
1023     if (rom->client_monitors_config.count >=
1024             ARRAY_SIZE(rom->client_monitors_config.heads)) {
1025         trace_qxl_client_monitors_config_capped(qxl->id,
1026                                 monitors_config->num_of_monitors,
1027                                 ARRAY_SIZE(rom->client_monitors_config.heads));
1028         rom->client_monitors_config.count =
1029             ARRAY_SIZE(rom->client_monitors_config.heads);
1030     }
1031     for (i = 0 ; i < rom->client_monitors_config.count ; ++i) {
1032         VDAgentMonConfig *monitor = &monitors_config->monitors[i];
1033         QXLURect *rect = &rom->client_monitors_config.heads[i];
1034         /* monitor->depth ignored */
1035         rect->left = monitor->x;
1036         rect->top = monitor->y;
1037         rect->right = monitor->x + monitor->width;
1038         rect->bottom = monitor->y + monitor->height;
1039     }
1040     rom->client_monitors_config_crc = qxl_crc32(
1041             (const uint8_t *)&rom->client_monitors_config,
1042             sizeof(rom->client_monitors_config));
1043     trace_qxl_client_monitors_config_crc(qxl->id,
1044             sizeof(rom->client_monitors_config),
1045             rom->client_monitors_config_crc);
1046 
1047     trace_qxl_interrupt_client_monitors_config(qxl->id,
1048                         rom->client_monitors_config.count,
1049                         rom->client_monitors_config.heads);
1050     qxl_send_events(qxl, QXL_INTERRUPT_CLIENT_MONITORS_CONFIG);
1051     return 1;
1052 }
1053 
1054 static const QXLInterface qxl_interface = {
1055     .base.type               = SPICE_INTERFACE_QXL,
1056     .base.description        = "qxl gpu",
1057     .base.major_version      = SPICE_INTERFACE_QXL_MAJOR,
1058     .base.minor_version      = SPICE_INTERFACE_QXL_MINOR,
1059 
1060     .attache_worker          = interface_attach_worker,
1061     .set_compression_level   = interface_set_compression_level,
1062     .set_mm_time             = interface_set_mm_time,
1063     .get_init_info           = interface_get_init_info,
1064 
1065     /* the callbacks below are called from spice server thread context */
1066     .get_command             = interface_get_command,
1067     .req_cmd_notification    = interface_req_cmd_notification,
1068     .release_resource        = interface_release_resource,
1069     .get_cursor_command      = interface_get_cursor_command,
1070     .req_cursor_notification = interface_req_cursor_notification,
1071     .notify_update           = interface_notify_update,
1072     .flush_resources         = interface_flush_resources,
1073     .async_complete          = interface_async_complete,
1074     .update_area_complete    = interface_update_area_complete,
1075     .set_client_capabilities = interface_set_client_capabilities,
1076     .client_monitors_config = interface_client_monitors_config,
1077 };
1078 
1079 static void qxl_enter_vga_mode(PCIQXLDevice *d)
1080 {
1081     if (d->mode == QXL_MODE_VGA) {
1082         return;
1083     }
1084     trace_qxl_enter_vga_mode(d->id);
1085 #if SPICE_SERVER_VERSION >= 0x000c03 /* release 0.12.3 */
1086     spice_qxl_driver_unload(&d->ssd.qxl);
1087 #endif
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     vga_dirty_log_stop(&d->vga);
1101     qxl_destroy_primary(d, QXL_SYNC);
1102 }
1103 
1104 static void qxl_update_irq(PCIQXLDevice *d)
1105 {
1106     uint32_t pending = le32_to_cpu(d->ram->int_pending);
1107     uint32_t mask    = le32_to_cpu(d->ram->int_mask);
1108     int level = !!(pending & mask);
1109     pci_set_irq(&d->pci, level);
1110     qxl_ring_set_dirty(d);
1111 }
1112 
1113 static void qxl_check_state(PCIQXLDevice *d)
1114 {
1115     QXLRam *ram = d->ram;
1116     int spice_display_running = qemu_spice_display_is_running(&d->ssd);
1117 
1118     assert(!spice_display_running || SPICE_RING_IS_EMPTY(&ram->cmd_ring));
1119     assert(!spice_display_running || SPICE_RING_IS_EMPTY(&ram->cursor_ring));
1120 }
1121 
1122 static void qxl_reset_state(PCIQXLDevice *d)
1123 {
1124     QXLRom *rom = d->rom;
1125 
1126     qxl_check_state(d);
1127     d->shadow_rom.update_id = cpu_to_le32(0);
1128     *rom = d->shadow_rom;
1129     qxl_rom_set_dirty(d);
1130     init_qxl_ram(d);
1131     d->num_free_res = 0;
1132     d->last_release = NULL;
1133     memset(&d->ssd.dirty, 0, sizeof(d->ssd.dirty));
1134     qxl_update_irq(d);
1135 }
1136 
1137 static void qxl_soft_reset(PCIQXLDevice *d)
1138 {
1139     trace_qxl_soft_reset(d->id);
1140     qxl_check_state(d);
1141     qxl_clear_guest_bug(d);
1142     d->current_async = QXL_UNDEFINED_IO;
1143 
1144     if (d->id == 0) {
1145         qxl_enter_vga_mode(d);
1146     } else {
1147         d->mode = QXL_MODE_UNDEFINED;
1148     }
1149 }
1150 
1151 static void qxl_hard_reset(PCIQXLDevice *d, int loadvm)
1152 {
1153     bool startstop = qemu_spice_display_is_running(&d->ssd);
1154 
1155     trace_qxl_hard_reset(d->id, loadvm);
1156 
1157     if (startstop) {
1158         qemu_spice_display_stop();
1159     }
1160 
1161     qxl_spice_reset_cursor(d);
1162     qxl_spice_reset_image_cache(d);
1163     qxl_reset_surfaces(d);
1164     qxl_reset_memslots(d);
1165 
1166     /* pre loadvm reset must not touch QXLRam.  This lives in
1167      * device memory, is migrated together with RAM and thus
1168      * already loaded at this point */
1169     if (!loadvm) {
1170         qxl_reset_state(d);
1171     }
1172     qemu_spice_create_host_memslot(&d->ssd);
1173     qxl_soft_reset(d);
1174 
1175     if (startstop) {
1176         qemu_spice_display_start();
1177     }
1178 }
1179 
1180 static void qxl_reset_handler(DeviceState *dev)
1181 {
1182     PCIQXLDevice *d = DO_UPCAST(PCIQXLDevice, pci.qdev, dev);
1183 
1184     qxl_hard_reset(d, 0);
1185 }
1186 
1187 static void qxl_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
1188 {
1189     VGACommonState *vga = opaque;
1190     PCIQXLDevice *qxl = container_of(vga, PCIQXLDevice, vga);
1191 
1192     trace_qxl_io_write_vga(qxl->id, qxl_mode_to_string(qxl->mode), addr, val);
1193     if (qxl->mode != QXL_MODE_VGA) {
1194         qxl_destroy_primary(qxl, QXL_SYNC);
1195         qxl_soft_reset(qxl);
1196     }
1197     vga_ioport_write(opaque, addr, val);
1198 }
1199 
1200 static const MemoryRegionPortio qxl_vga_portio_list[] = {
1201     { 0x04,  2, 1, .read  = vga_ioport_read,
1202                    .write = qxl_vga_ioport_write }, /* 3b4 */
1203     { 0x0a,  1, 1, .read  = vga_ioport_read,
1204                    .write = qxl_vga_ioport_write }, /* 3ba */
1205     { 0x10, 16, 1, .read  = vga_ioport_read,
1206                    .write = qxl_vga_ioport_write }, /* 3c0 */
1207     { 0x24,  2, 1, .read  = vga_ioport_read,
1208                    .write = qxl_vga_ioport_write }, /* 3d4 */
1209     { 0x2a,  1, 1, .read  = vga_ioport_read,
1210                    .write = qxl_vga_ioport_write }, /* 3da */
1211     PORTIO_END_OF_LIST(),
1212 };
1213 
1214 static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
1215                            qxl_async_io async)
1216 {
1217     static const int regions[] = {
1218         QXL_RAM_RANGE_INDEX,
1219         QXL_VRAM_RANGE_INDEX,
1220         QXL_VRAM64_RANGE_INDEX,
1221     };
1222     uint64_t guest_start;
1223     uint64_t guest_end;
1224     int pci_region;
1225     pcibus_t pci_start;
1226     pcibus_t pci_end;
1227     intptr_t virt_start;
1228     QXLDevMemSlot memslot;
1229     int i;
1230 
1231     guest_start = le64_to_cpu(d->guest_slots[slot_id].slot.mem_start);
1232     guest_end   = le64_to_cpu(d->guest_slots[slot_id].slot.mem_end);
1233 
1234     trace_qxl_memslot_add_guest(d->id, slot_id, guest_start, guest_end);
1235 
1236     if (slot_id >= NUM_MEMSLOTS) {
1237         qxl_set_guest_bug(d, "%s: slot_id >= NUM_MEMSLOTS %d >= %d", __func__,
1238                       slot_id, NUM_MEMSLOTS);
1239         return 1;
1240     }
1241     if (guest_start > guest_end) {
1242         qxl_set_guest_bug(d, "%s: guest_start > guest_end 0x%" PRIx64
1243                          " > 0x%" PRIx64, __func__, guest_start, guest_end);
1244         return 1;
1245     }
1246 
1247     for (i = 0; i < ARRAY_SIZE(regions); i++) {
1248         pci_region = regions[i];
1249         pci_start = d->pci.io_regions[pci_region].addr;
1250         pci_end = pci_start + d->pci.io_regions[pci_region].size;
1251         /* mapped? */
1252         if (pci_start == -1) {
1253             continue;
1254         }
1255         /* start address in range ? */
1256         if (guest_start < pci_start || guest_start > pci_end) {
1257             continue;
1258         }
1259         /* end address in range ? */
1260         if (guest_end > pci_end) {
1261             continue;
1262         }
1263         /* passed */
1264         break;
1265     }
1266     if (i == ARRAY_SIZE(regions)) {
1267         qxl_set_guest_bug(d, "%s: finished loop without match", __func__);
1268         return 1;
1269     }
1270 
1271     switch (pci_region) {
1272     case QXL_RAM_RANGE_INDEX:
1273         virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vga.vram);
1274         break;
1275     case QXL_VRAM_RANGE_INDEX:
1276     case 4 /* vram 64bit */:
1277         virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vram_bar);
1278         break;
1279     default:
1280         /* should not happen */
1281         qxl_set_guest_bug(d, "%s: pci_region = %d", __func__, pci_region);
1282         return 1;
1283     }
1284 
1285     memslot.slot_id = slot_id;
1286     memslot.slot_group_id = MEMSLOT_GROUP_GUEST; /* guest group */
1287     memslot.virt_start = virt_start + (guest_start - pci_start);
1288     memslot.virt_end   = virt_start + (guest_end   - pci_start);
1289     memslot.addr_delta = memslot.virt_start - delta;
1290     memslot.generation = d->rom->slot_generation = 0;
1291     qxl_rom_set_dirty(d);
1292 
1293     qemu_spice_add_memslot(&d->ssd, &memslot, async);
1294     d->guest_slots[slot_id].ptr = (void*)memslot.virt_start;
1295     d->guest_slots[slot_id].size = memslot.virt_end - memslot.virt_start;
1296     d->guest_slots[slot_id].delta = delta;
1297     d->guest_slots[slot_id].active = 1;
1298     return 0;
1299 }
1300 
1301 static void qxl_del_memslot(PCIQXLDevice *d, uint32_t slot_id)
1302 {
1303     qemu_spice_del_memslot(&d->ssd, MEMSLOT_GROUP_HOST, slot_id);
1304     d->guest_slots[slot_id].active = 0;
1305 }
1306 
1307 static void qxl_reset_memslots(PCIQXLDevice *d)
1308 {
1309     qxl_spice_reset_memslots(d);
1310     memset(&d->guest_slots, 0, sizeof(d->guest_slots));
1311 }
1312 
1313 static void qxl_reset_surfaces(PCIQXLDevice *d)
1314 {
1315     trace_qxl_reset_surfaces(d->id);
1316     d->mode = QXL_MODE_UNDEFINED;
1317     qxl_spice_destroy_surfaces(d, QXL_SYNC);
1318 }
1319 
1320 /* can be also called from spice server thread context */
1321 void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id)
1322 {
1323     uint64_t phys   = le64_to_cpu(pqxl);
1324     uint32_t slot   = (phys >> (64 -  8)) & 0xff;
1325     uint64_t offset = phys & 0xffffffffffff;
1326 
1327     switch (group_id) {
1328     case MEMSLOT_GROUP_HOST:
1329         return (void *)(intptr_t)offset;
1330     case MEMSLOT_GROUP_GUEST:
1331         if (slot >= NUM_MEMSLOTS) {
1332             qxl_set_guest_bug(qxl, "slot too large %d >= %d", slot,
1333                               NUM_MEMSLOTS);
1334             return NULL;
1335         }
1336         if (!qxl->guest_slots[slot].active) {
1337             qxl_set_guest_bug(qxl, "inactive slot %d\n", slot);
1338             return NULL;
1339         }
1340         if (offset < qxl->guest_slots[slot].delta) {
1341             qxl_set_guest_bug(qxl,
1342                           "slot %d offset %"PRIu64" < delta %"PRIu64"\n",
1343                           slot, offset, qxl->guest_slots[slot].delta);
1344             return NULL;
1345         }
1346         offset -= qxl->guest_slots[slot].delta;
1347         if (offset > qxl->guest_slots[slot].size) {
1348             qxl_set_guest_bug(qxl,
1349                           "slot %d offset %"PRIu64" > size %"PRIu64"\n",
1350                           slot, offset, qxl->guest_slots[slot].size);
1351             return NULL;
1352         }
1353         return qxl->guest_slots[slot].ptr + offset;
1354     }
1355     return NULL;
1356 }
1357 
1358 static void qxl_create_guest_primary_complete(PCIQXLDevice *qxl)
1359 {
1360     /* for local rendering */
1361     qxl_render_resize(qxl);
1362 }
1363 
1364 static void qxl_create_guest_primary(PCIQXLDevice *qxl, int loadvm,
1365                                      qxl_async_io async)
1366 {
1367     QXLDevSurfaceCreate surface;
1368     QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
1369     uint32_t requested_height = le32_to_cpu(sc->height);
1370     int requested_stride = le32_to_cpu(sc->stride);
1371 
1372     if (requested_stride == INT32_MIN ||
1373         abs(requested_stride) * (uint64_t)requested_height
1374                                         > qxl->vgamem_size) {
1375         qxl_set_guest_bug(qxl, "%s: requested primary larger than framebuffer"
1376                                " stride %d x height %" PRIu32 " > %" PRIu32,
1377                                __func__, requested_stride, requested_height,
1378                                qxl->vgamem_size);
1379         return;
1380     }
1381 
1382     if (qxl->mode == QXL_MODE_NATIVE) {
1383         qxl_set_guest_bug(qxl, "%s: nop since already in QXL_MODE_NATIVE",
1384                       __func__);
1385     }
1386     qxl_exit_vga_mode(qxl);
1387 
1388     surface.format     = le32_to_cpu(sc->format);
1389     surface.height     = le32_to_cpu(sc->height);
1390     surface.mem        = le64_to_cpu(sc->mem);
1391     surface.position   = le32_to_cpu(sc->position);
1392     surface.stride     = le32_to_cpu(sc->stride);
1393     surface.width      = le32_to_cpu(sc->width);
1394     surface.type       = le32_to_cpu(sc->type);
1395     surface.flags      = le32_to_cpu(sc->flags);
1396     trace_qxl_create_guest_primary(qxl->id, sc->width, sc->height, sc->mem,
1397                                    sc->format, sc->position);
1398     trace_qxl_create_guest_primary_rest(qxl->id, sc->stride, sc->type,
1399                                         sc->flags);
1400 
1401     if ((surface.stride & 0x3) != 0) {
1402         qxl_set_guest_bug(qxl, "primary surface stride = %d %% 4 != 0",
1403                           surface.stride);
1404         return;
1405     }
1406 
1407     surface.mouse_mode = true;
1408     surface.group_id   = MEMSLOT_GROUP_GUEST;
1409     if (loadvm) {
1410         surface.flags |= QXL_SURF_FLAG_KEEP_DATA;
1411     }
1412 
1413     qxl->mode = QXL_MODE_NATIVE;
1414     qxl->cmdflags = 0;
1415     qemu_spice_create_primary_surface(&qxl->ssd, 0, &surface, async);
1416 
1417     if (async == QXL_SYNC) {
1418         qxl_create_guest_primary_complete(qxl);
1419     }
1420 }
1421 
1422 /* return 1 if surface destoy was initiated (in QXL_ASYNC case) or
1423  * done (in QXL_SYNC case), 0 otherwise. */
1424 static int qxl_destroy_primary(PCIQXLDevice *d, qxl_async_io async)
1425 {
1426     if (d->mode == QXL_MODE_UNDEFINED) {
1427         return 0;
1428     }
1429     trace_qxl_destroy_primary(d->id);
1430     d->mode = QXL_MODE_UNDEFINED;
1431     qemu_spice_destroy_primary_surface(&d->ssd, 0, async);
1432     qxl_spice_reset_cursor(d);
1433     return 1;
1434 }
1435 
1436 static void qxl_set_mode(PCIQXLDevice *d, unsigned int modenr, int loadvm)
1437 {
1438     pcibus_t start = d->pci.io_regions[QXL_RAM_RANGE_INDEX].addr;
1439     pcibus_t end   = d->pci.io_regions[QXL_RAM_RANGE_INDEX].size + start;
1440     QXLMode *mode = d->modes->modes + modenr;
1441     uint64_t devmem = d->pci.io_regions[QXL_RAM_RANGE_INDEX].addr;
1442     QXLMemSlot slot = {
1443         .mem_start = start,
1444         .mem_end = end
1445     };
1446 
1447     if (modenr >= d->modes->n_modes) {
1448         qxl_set_guest_bug(d, "mode number out of range");
1449         return;
1450     }
1451 
1452     QXLSurfaceCreate surface = {
1453         .width      = mode->x_res,
1454         .height     = mode->y_res,
1455         .stride     = -mode->x_res * 4,
1456         .format     = SPICE_SURFACE_FMT_32_xRGB,
1457         .flags      = loadvm ? QXL_SURF_FLAG_KEEP_DATA : 0,
1458         .mouse_mode = true,
1459         .mem        = devmem + d->shadow_rom.draw_area_offset,
1460     };
1461 
1462     trace_qxl_set_mode(d->id, modenr, mode->x_res, mode->y_res, mode->bits,
1463                        devmem);
1464     if (!loadvm) {
1465         qxl_hard_reset(d, 0);
1466     }
1467 
1468     d->guest_slots[0].slot = slot;
1469     assert(qxl_add_memslot(d, 0, devmem, QXL_SYNC) == 0);
1470 
1471     d->guest_primary.surface = surface;
1472     qxl_create_guest_primary(d, 0, QXL_SYNC);
1473 
1474     d->mode = QXL_MODE_COMPAT;
1475     d->cmdflags = QXL_COMMAND_FLAG_COMPAT;
1476     if (mode->bits == 16) {
1477         d->cmdflags |= QXL_COMMAND_FLAG_COMPAT_16BPP;
1478     }
1479     d->shadow_rom.mode = cpu_to_le32(modenr);
1480     d->rom->mode = cpu_to_le32(modenr);
1481     qxl_rom_set_dirty(d);
1482 }
1483 
1484 static void ioport_write(void *opaque, hwaddr addr,
1485                          uint64_t val, unsigned size)
1486 {
1487     PCIQXLDevice *d = opaque;
1488     uint32_t io_port = addr;
1489     qxl_async_io async = QXL_SYNC;
1490     uint32_t orig_io_port = io_port;
1491 
1492     if (d->guest_bug && io_port != QXL_IO_RESET) {
1493         return;
1494     }
1495 
1496     if (d->revision <= QXL_REVISION_STABLE_V10 &&
1497         io_port > QXL_IO_FLUSH_RELEASE) {
1498         qxl_set_guest_bug(d, "unsupported io %d for revision %d\n",
1499             io_port, d->revision);
1500         return;
1501     }
1502 
1503     switch (io_port) {
1504     case QXL_IO_RESET:
1505     case QXL_IO_SET_MODE:
1506     case QXL_IO_MEMSLOT_ADD:
1507     case QXL_IO_MEMSLOT_DEL:
1508     case QXL_IO_CREATE_PRIMARY:
1509     case QXL_IO_UPDATE_IRQ:
1510     case QXL_IO_LOG:
1511     case QXL_IO_MEMSLOT_ADD_ASYNC:
1512     case QXL_IO_CREATE_PRIMARY_ASYNC:
1513         break;
1514     default:
1515         if (d->mode != QXL_MODE_VGA) {
1516             break;
1517         }
1518         trace_qxl_io_unexpected_vga_mode(d->id,
1519             addr, val, io_port_to_string(io_port));
1520         /* be nice to buggy guest drivers */
1521         if (io_port >= QXL_IO_UPDATE_AREA_ASYNC &&
1522             io_port < QXL_IO_RANGE_SIZE) {
1523             qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
1524         }
1525         return;
1526     }
1527 
1528     /* we change the io_port to avoid ifdeffery in the main switch */
1529     orig_io_port = io_port;
1530     switch (io_port) {
1531     case QXL_IO_UPDATE_AREA_ASYNC:
1532         io_port = QXL_IO_UPDATE_AREA;
1533         goto async_common;
1534     case QXL_IO_MEMSLOT_ADD_ASYNC:
1535         io_port = QXL_IO_MEMSLOT_ADD;
1536         goto async_common;
1537     case QXL_IO_CREATE_PRIMARY_ASYNC:
1538         io_port = QXL_IO_CREATE_PRIMARY;
1539         goto async_common;
1540     case QXL_IO_DESTROY_PRIMARY_ASYNC:
1541         io_port = QXL_IO_DESTROY_PRIMARY;
1542         goto async_common;
1543     case QXL_IO_DESTROY_SURFACE_ASYNC:
1544         io_port = QXL_IO_DESTROY_SURFACE_WAIT;
1545         goto async_common;
1546     case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
1547         io_port = QXL_IO_DESTROY_ALL_SURFACES;
1548         goto async_common;
1549     case QXL_IO_FLUSH_SURFACES_ASYNC:
1550     case QXL_IO_MONITORS_CONFIG_ASYNC:
1551 async_common:
1552         async = QXL_ASYNC;
1553         qemu_mutex_lock(&d->async_lock);
1554         if (d->current_async != QXL_UNDEFINED_IO) {
1555             qxl_set_guest_bug(d, "%d async started before last (%d) complete",
1556                 io_port, d->current_async);
1557             qemu_mutex_unlock(&d->async_lock);
1558             return;
1559         }
1560         d->current_async = orig_io_port;
1561         qemu_mutex_unlock(&d->async_lock);
1562         break;
1563     default:
1564         break;
1565     }
1566     trace_qxl_io_write(d->id, qxl_mode_to_string(d->mode),
1567                        addr, io_port_to_string(addr),
1568                        val, size, async);
1569 
1570     switch (io_port) {
1571     case QXL_IO_UPDATE_AREA:
1572     {
1573         QXLCookie *cookie = NULL;
1574         QXLRect update = d->ram->update_area;
1575 
1576         if (d->ram->update_surface > d->ssd.num_surfaces) {
1577             qxl_set_guest_bug(d, "QXL_IO_UPDATE_AREA: invalid surface id %d\n",
1578                               d->ram->update_surface);
1579             break;
1580         }
1581         if (update.left >= update.right || update.top >= update.bottom ||
1582             update.left < 0 || update.top < 0) {
1583             qxl_set_guest_bug(d,
1584                     "QXL_IO_UPDATE_AREA: invalid area (%ux%u)x(%ux%u)\n",
1585                     update.left, update.top, update.right, update.bottom);
1586             break;
1587         }
1588         if (async == QXL_ASYNC) {
1589             cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
1590                                     QXL_IO_UPDATE_AREA_ASYNC);
1591             cookie->u.area = update;
1592         }
1593         qxl_spice_update_area(d, d->ram->update_surface,
1594                               cookie ? &cookie->u.area : &update,
1595                               NULL, 0, 0, async, cookie);
1596         break;
1597     }
1598     case QXL_IO_NOTIFY_CMD:
1599         qemu_spice_wakeup(&d->ssd);
1600         break;
1601     case QXL_IO_NOTIFY_CURSOR:
1602         qemu_spice_wakeup(&d->ssd);
1603         break;
1604     case QXL_IO_UPDATE_IRQ:
1605         qxl_update_irq(d);
1606         break;
1607     case QXL_IO_NOTIFY_OOM:
1608         if (!SPICE_RING_IS_EMPTY(&d->ram->release_ring)) {
1609             break;
1610         }
1611         d->oom_running = 1;
1612         qxl_spice_oom(d);
1613         d->oom_running = 0;
1614         break;
1615     case QXL_IO_SET_MODE:
1616         qxl_set_mode(d, val, 0);
1617         break;
1618     case QXL_IO_LOG:
1619         trace_qxl_io_log(d->id, d->ram->log_buf);
1620         if (d->guestdebug) {
1621             fprintf(stderr, "qxl/guest-%d: %" PRId64 ": %s", d->id,
1622                     qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), d->ram->log_buf);
1623         }
1624         break;
1625     case QXL_IO_RESET:
1626         qxl_hard_reset(d, 0);
1627         break;
1628     case QXL_IO_MEMSLOT_ADD:
1629         if (val >= NUM_MEMSLOTS) {
1630             qxl_set_guest_bug(d, "QXL_IO_MEMSLOT_ADD: val out of range");
1631             break;
1632         }
1633         if (d->guest_slots[val].active) {
1634             qxl_set_guest_bug(d,
1635                         "QXL_IO_MEMSLOT_ADD: memory slot already active");
1636             break;
1637         }
1638         d->guest_slots[val].slot = d->ram->mem_slot;
1639         qxl_add_memslot(d, val, 0, async);
1640         break;
1641     case QXL_IO_MEMSLOT_DEL:
1642         if (val >= NUM_MEMSLOTS) {
1643             qxl_set_guest_bug(d, "QXL_IO_MEMSLOT_DEL: val out of range");
1644             break;
1645         }
1646         qxl_del_memslot(d, val);
1647         break;
1648     case QXL_IO_CREATE_PRIMARY:
1649         if (val != 0) {
1650             qxl_set_guest_bug(d, "QXL_IO_CREATE_PRIMARY (async=%d): val != 0",
1651                           async);
1652             goto cancel_async;
1653         }
1654         d->guest_primary.surface = d->ram->create_surface;
1655         qxl_create_guest_primary(d, 0, async);
1656         break;
1657     case QXL_IO_DESTROY_PRIMARY:
1658         if (val != 0) {
1659             qxl_set_guest_bug(d, "QXL_IO_DESTROY_PRIMARY (async=%d): val != 0",
1660                           async);
1661             goto cancel_async;
1662         }
1663         if (!qxl_destroy_primary(d, async)) {
1664             trace_qxl_io_destroy_primary_ignored(d->id,
1665                                                  qxl_mode_to_string(d->mode));
1666             goto cancel_async;
1667         }
1668         break;
1669     case QXL_IO_DESTROY_SURFACE_WAIT:
1670         if (val >= d->ssd.num_surfaces) {
1671             qxl_set_guest_bug(d, "QXL_IO_DESTROY_SURFACE (async=%d):"
1672                              "%" PRIu64 " >= NUM_SURFACES", async, val);
1673             goto cancel_async;
1674         }
1675         qxl_spice_destroy_surface_wait(d, val, async);
1676         break;
1677     case QXL_IO_FLUSH_RELEASE: {
1678         QXLReleaseRing *ring = &d->ram->release_ring;
1679         if (ring->prod - ring->cons + 1 == ring->num_items) {
1680             fprintf(stderr,
1681                 "ERROR: no flush, full release ring [p%d,%dc]\n",
1682                 ring->prod, ring->cons);
1683         }
1684         qxl_push_free_res(d, 1 /* flush */);
1685         break;
1686     }
1687     case QXL_IO_FLUSH_SURFACES_ASYNC:
1688         qxl_spice_flush_surfaces_async(d);
1689         break;
1690     case QXL_IO_DESTROY_ALL_SURFACES:
1691         d->mode = QXL_MODE_UNDEFINED;
1692         qxl_spice_destroy_surfaces(d, async);
1693         break;
1694     case QXL_IO_MONITORS_CONFIG_ASYNC:
1695         qxl_spice_monitors_config_async(d, 0);
1696         break;
1697     default:
1698         qxl_set_guest_bug(d, "%s: unexpected ioport=0x%x\n", __func__, io_port);
1699     }
1700     return;
1701 cancel_async:
1702     if (async) {
1703         qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
1704         qemu_mutex_lock(&d->async_lock);
1705         d->current_async = QXL_UNDEFINED_IO;
1706         qemu_mutex_unlock(&d->async_lock);
1707     }
1708 }
1709 
1710 static uint64_t ioport_read(void *opaque, hwaddr addr,
1711                             unsigned size)
1712 {
1713     PCIQXLDevice *qxl = opaque;
1714 
1715     trace_qxl_io_read_unexpected(qxl->id);
1716     return 0xff;
1717 }
1718 
1719 static const MemoryRegionOps qxl_io_ops = {
1720     .read = ioport_read,
1721     .write = ioport_write,
1722     .valid = {
1723         .min_access_size = 1,
1724         .max_access_size = 1,
1725     },
1726 };
1727 
1728 static void qxl_update_irq_bh(void *opaque)
1729 {
1730     PCIQXLDevice *d = opaque;
1731     qxl_update_irq(d);
1732 }
1733 
1734 static void qxl_send_events(PCIQXLDevice *d, uint32_t events)
1735 {
1736     uint32_t old_pending;
1737     uint32_t le_events = cpu_to_le32(events);
1738 
1739     trace_qxl_send_events(d->id, events);
1740     if (!qemu_spice_display_is_running(&d->ssd)) {
1741         /* spice-server tracks guest running state and should not do this */
1742         fprintf(stderr, "%s: spice-server bug: guest stopped, ignoring\n",
1743                 __func__);
1744         trace_qxl_send_events_vm_stopped(d->id, events);
1745         return;
1746     }
1747     old_pending = atomic_fetch_or(&d->ram->int_pending, le_events);
1748     if ((old_pending & le_events) == le_events) {
1749         return;
1750     }
1751     qemu_bh_schedule(d->update_irq);
1752 }
1753 
1754 /* graphics console */
1755 
1756 static void qxl_hw_update(void *opaque)
1757 {
1758     PCIQXLDevice *qxl = opaque;
1759     VGACommonState *vga = &qxl->vga;
1760 
1761     switch (qxl->mode) {
1762     case QXL_MODE_VGA:
1763         vga->hw_ops->gfx_update(vga);
1764         break;
1765     case QXL_MODE_COMPAT:
1766     case QXL_MODE_NATIVE:
1767         qxl_render_update(qxl);
1768         break;
1769     default:
1770         break;
1771     }
1772 }
1773 
1774 static void qxl_hw_invalidate(void *opaque)
1775 {
1776     PCIQXLDevice *qxl = opaque;
1777     VGACommonState *vga = &qxl->vga;
1778 
1779     if (qxl->mode == QXL_MODE_VGA) {
1780         vga->hw_ops->invalidate(vga);
1781         return;
1782     }
1783 }
1784 
1785 static void qxl_hw_text_update(void *opaque, console_ch_t *chardata)
1786 {
1787     PCIQXLDevice *qxl = opaque;
1788     VGACommonState *vga = &qxl->vga;
1789 
1790     if (qxl->mode == QXL_MODE_VGA) {
1791         vga->hw_ops->text_update(vga, chardata);
1792         return;
1793     }
1794 }
1795 
1796 static void qxl_dirty_surfaces(PCIQXLDevice *qxl)
1797 {
1798     uintptr_t vram_start;
1799     int i;
1800 
1801     if (qxl->mode != QXL_MODE_NATIVE && qxl->mode != QXL_MODE_COMPAT) {
1802         return;
1803     }
1804 
1805     /* dirty the primary surface */
1806     qxl_set_dirty(&qxl->vga.vram, qxl->shadow_rom.draw_area_offset,
1807                   qxl->shadow_rom.surface0_area_size);
1808 
1809     vram_start = (uintptr_t)memory_region_get_ram_ptr(&qxl->vram_bar);
1810 
1811     /* dirty the off-screen surfaces */
1812     for (i = 0; i < qxl->ssd.num_surfaces; i++) {
1813         QXLSurfaceCmd *cmd;
1814         intptr_t surface_offset;
1815         int surface_size;
1816 
1817         if (qxl->guest_surfaces.cmds[i] == 0) {
1818             continue;
1819         }
1820 
1821         cmd = qxl_phys2virt(qxl, qxl->guest_surfaces.cmds[i],
1822                             MEMSLOT_GROUP_GUEST);
1823         assert(cmd);
1824         assert(cmd->type == QXL_SURFACE_CMD_CREATE);
1825         surface_offset = (intptr_t)qxl_phys2virt(qxl,
1826                                                  cmd->u.surface_create.data,
1827                                                  MEMSLOT_GROUP_GUEST);
1828         assert(surface_offset);
1829         surface_offset -= vram_start;
1830         surface_size = cmd->u.surface_create.height *
1831                        abs(cmd->u.surface_create.stride);
1832         trace_qxl_surfaces_dirty(qxl->id, i, (int)surface_offset, surface_size);
1833         qxl_set_dirty(&qxl->vram_bar, surface_offset, surface_size);
1834     }
1835 }
1836 
1837 static void qxl_vm_change_state_handler(void *opaque, int running,
1838                                         RunState state)
1839 {
1840     PCIQXLDevice *qxl = opaque;
1841 
1842     if (running) {
1843         /*
1844          * if qxl_send_events was called from spice server context before
1845          * migration ended, qxl_update_irq for these events might not have been
1846          * called
1847          */
1848          qxl_update_irq(qxl);
1849     } else {
1850         /* make sure surfaces are saved before migration */
1851         qxl_dirty_surfaces(qxl);
1852     }
1853 }
1854 
1855 /* display change listener */
1856 
1857 static void display_update(DisplayChangeListener *dcl,
1858                            int x, int y, int w, int h)
1859 {
1860     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1861 
1862     if (qxl->mode == QXL_MODE_VGA) {
1863         qemu_spice_display_update(&qxl->ssd, x, y, w, h);
1864     }
1865 }
1866 
1867 static void display_switch(DisplayChangeListener *dcl,
1868                            struct DisplaySurface *surface)
1869 {
1870     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1871 
1872     qxl->ssd.ds = surface;
1873     if (qxl->mode == QXL_MODE_VGA) {
1874         qemu_spice_display_switch(&qxl->ssd, surface);
1875     }
1876 }
1877 
1878 static void display_refresh(DisplayChangeListener *dcl)
1879 {
1880     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1881 
1882     if (qxl->mode == QXL_MODE_VGA) {
1883         qemu_spice_display_refresh(&qxl->ssd);
1884     } else {
1885         qemu_mutex_lock(&qxl->ssd.lock);
1886         qemu_spice_cursor_refresh_unlocked(&qxl->ssd);
1887         qemu_mutex_unlock(&qxl->ssd.lock);
1888     }
1889 }
1890 
1891 static DisplayChangeListenerOps display_listener_ops = {
1892     .dpy_name        = "spice/qxl",
1893     .dpy_gfx_update  = display_update,
1894     .dpy_gfx_switch  = display_switch,
1895     .dpy_refresh     = display_refresh,
1896 };
1897 
1898 static void qxl_init_ramsize(PCIQXLDevice *qxl)
1899 {
1900     /* vga mode framebuffer / primary surface (bar 0, first part) */
1901     if (qxl->vgamem_size_mb < 8) {
1902         qxl->vgamem_size_mb = 8;
1903     }
1904     qxl->vgamem_size = qxl->vgamem_size_mb * 1024 * 1024;
1905 
1906     /* vga ram (bar 0, total) */
1907     if (qxl->ram_size_mb != -1) {
1908         qxl->vga.vram_size = qxl->ram_size_mb * 1024 * 1024;
1909     }
1910     if (qxl->vga.vram_size < qxl->vgamem_size * 2) {
1911         qxl->vga.vram_size = qxl->vgamem_size * 2;
1912     }
1913 
1914     /* vram32 (surfaces, 32bit, bar 1) */
1915     if (qxl->vram32_size_mb != -1) {
1916         qxl->vram32_size = qxl->vram32_size_mb * 1024 * 1024;
1917     }
1918     if (qxl->vram32_size < 4096) {
1919         qxl->vram32_size = 4096;
1920     }
1921 
1922     /* vram (surfaces, 64bit, bar 4+5) */
1923     if (qxl->vram_size_mb != -1) {
1924         qxl->vram_size = qxl->vram_size_mb * 1024 * 1024;
1925     }
1926     if (qxl->vram_size < qxl->vram32_size) {
1927         qxl->vram_size = qxl->vram32_size;
1928     }
1929 
1930     if (qxl->revision == 1) {
1931         qxl->vram32_size = 4096;
1932         qxl->vram_size = 4096;
1933     }
1934     qxl->vgamem_size = msb_mask(qxl->vgamem_size * 2 - 1);
1935     qxl->vga.vram_size = msb_mask(qxl->vga.vram_size * 2 - 1);
1936     qxl->vram32_size = msb_mask(qxl->vram32_size * 2 - 1);
1937     qxl->vram_size = msb_mask(qxl->vram_size * 2 - 1);
1938 }
1939 
1940 static int qxl_init_common(PCIQXLDevice *qxl)
1941 {
1942     uint8_t* config = qxl->pci.config;
1943     uint32_t pci_device_rev;
1944     uint32_t io_size;
1945 
1946     qxl->mode = QXL_MODE_UNDEFINED;
1947     qxl->generation = 1;
1948     qxl->num_memslots = NUM_MEMSLOTS;
1949     qemu_mutex_init(&qxl->track_lock);
1950     qemu_mutex_init(&qxl->async_lock);
1951     qxl->current_async = QXL_UNDEFINED_IO;
1952     qxl->guest_bug = 0;
1953 
1954     switch (qxl->revision) {
1955     case 1: /* spice 0.4 -- qxl-1 */
1956         pci_device_rev = QXL_REVISION_STABLE_V04;
1957         io_size = 8;
1958         break;
1959     case 2: /* spice 0.6 -- qxl-2 */
1960         pci_device_rev = QXL_REVISION_STABLE_V06;
1961         io_size = 16;
1962         break;
1963     case 3: /* qxl-3 */
1964         pci_device_rev = QXL_REVISION_STABLE_V10;
1965         io_size = 32; /* PCI region size must be pow2 */
1966         break;
1967     case 4: /* qxl-4 */
1968         pci_device_rev = QXL_REVISION_STABLE_V12;
1969         io_size = msb_mask(QXL_IO_RANGE_SIZE * 2 - 1);
1970         break;
1971     default:
1972         error_report("Invalid revision %d for qxl device (max %d)",
1973                      qxl->revision, QXL_DEFAULT_REVISION);
1974         return -1;
1975     }
1976 
1977     pci_set_byte(&config[PCI_REVISION_ID], pci_device_rev);
1978     pci_set_byte(&config[PCI_INTERRUPT_PIN], 1);
1979 
1980     qxl->rom_size = qxl_rom_size();
1981     memory_region_init_ram(&qxl->rom_bar, OBJECT(qxl), "qxl.vrom",
1982                            qxl->rom_size);
1983     vmstate_register_ram(&qxl->rom_bar, &qxl->pci.qdev);
1984     init_qxl_rom(qxl);
1985     init_qxl_ram(qxl);
1986 
1987     qxl->guest_surfaces.cmds = g_new0(QXLPHYSICAL, qxl->ssd.num_surfaces);
1988     memory_region_init_ram(&qxl->vram_bar, OBJECT(qxl), "qxl.vram",
1989                            qxl->vram_size);
1990     vmstate_register_ram(&qxl->vram_bar, &qxl->pci.qdev);
1991     memory_region_init_alias(&qxl->vram32_bar, OBJECT(qxl), "qxl.vram32",
1992                              &qxl->vram_bar, 0, qxl->vram32_size);
1993 
1994     memory_region_init_io(&qxl->io_bar, OBJECT(qxl), &qxl_io_ops, qxl,
1995                           "qxl-ioports", io_size);
1996     if (qxl->id == 0) {
1997         vga_dirty_log_start(&qxl->vga);
1998     }
1999     memory_region_set_flush_coalesced(&qxl->io_bar);
2000 
2001 
2002     pci_register_bar(&qxl->pci, QXL_IO_RANGE_INDEX,
2003                      PCI_BASE_ADDRESS_SPACE_IO, &qxl->io_bar);
2004 
2005     pci_register_bar(&qxl->pci, QXL_ROM_RANGE_INDEX,
2006                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->rom_bar);
2007 
2008     pci_register_bar(&qxl->pci, QXL_RAM_RANGE_INDEX,
2009                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vga.vram);
2010 
2011     pci_register_bar(&qxl->pci, QXL_VRAM_RANGE_INDEX,
2012                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vram32_bar);
2013 
2014     if (qxl->vram32_size < qxl->vram_size) {
2015         /*
2016          * Make the 64bit vram bar show up only in case it is
2017          * configured to be larger than the 32bit vram bar.
2018          */
2019         pci_register_bar(&qxl->pci, QXL_VRAM64_RANGE_INDEX,
2020                          PCI_BASE_ADDRESS_SPACE_MEMORY |
2021                          PCI_BASE_ADDRESS_MEM_TYPE_64 |
2022                          PCI_BASE_ADDRESS_MEM_PREFETCH,
2023                          &qxl->vram_bar);
2024     }
2025 
2026     /* print pci bar details */
2027     dprint(qxl, 1, "ram/%s: %d MB [region 0]\n",
2028            qxl->id == 0 ? "pri" : "sec",
2029            qxl->vga.vram_size / (1024*1024));
2030     dprint(qxl, 1, "vram/32: %d MB [region 1]\n",
2031            qxl->vram32_size / (1024*1024));
2032     dprint(qxl, 1, "vram/64: %d MB %s\n",
2033            qxl->vram_size / (1024*1024),
2034            qxl->vram32_size < qxl->vram_size ? "[region 4]" : "[unmapped]");
2035 
2036     qxl->ssd.qxl.base.sif = &qxl_interface.base;
2037     if (qemu_spice_add_display_interface(&qxl->ssd.qxl, qxl->vga.con) != 0) {
2038         error_report("qxl interface %d.%d not supported by spice-server",
2039                      SPICE_INTERFACE_QXL_MAJOR, SPICE_INTERFACE_QXL_MINOR);
2040         return -1;
2041     }
2042     qemu_add_vm_change_state_handler(qxl_vm_change_state_handler, qxl);
2043 
2044     qxl->update_irq = qemu_bh_new(qxl_update_irq_bh, qxl);
2045     qxl_reset_state(qxl);
2046 
2047     qxl->update_area_bh = qemu_bh_new(qxl_render_update_area_bh, qxl);
2048 
2049     return 0;
2050 }
2051 
2052 static const GraphicHwOps qxl_ops = {
2053     .invalidate  = qxl_hw_invalidate,
2054     .gfx_update  = qxl_hw_update,
2055     .text_update = qxl_hw_text_update,
2056 };
2057 
2058 static int qxl_init_primary(PCIDevice *dev)
2059 {
2060     PCIQXLDevice *qxl = DO_UPCAST(PCIQXLDevice, pci, dev);
2061     VGACommonState *vga = &qxl->vga;
2062     int rc;
2063 
2064     qxl->id = 0;
2065     qxl_init_ramsize(qxl);
2066     vga->vram_size_mb = qxl->vga.vram_size >> 20;
2067     vga_common_init(vga, OBJECT(dev), true);
2068     vga_init(vga, OBJECT(dev),
2069              pci_address_space(dev), pci_address_space_io(dev), false);
2070     portio_list_init(&qxl->vga_port_list, OBJECT(dev), qxl_vga_portio_list,
2071                      vga, "vga");
2072     portio_list_set_flush_coalesced(&qxl->vga_port_list);
2073     portio_list_add(&qxl->vga_port_list, pci_address_space_io(dev), 0x3b0);
2074 
2075     vga->con = graphic_console_init(DEVICE(dev), 0, &qxl_ops, qxl);
2076     qemu_spice_display_init_common(&qxl->ssd);
2077 
2078     rc = qxl_init_common(qxl);
2079     if (rc != 0) {
2080         return rc;
2081     }
2082 
2083     qxl->ssd.dcl.ops = &display_listener_ops;
2084     qxl->ssd.dcl.con = vga->con;
2085     register_displaychangelistener(&qxl->ssd.dcl);
2086     return rc;
2087 }
2088 
2089 static int qxl_init_secondary(PCIDevice *dev)
2090 {
2091     static int device_id = 1;
2092     PCIQXLDevice *qxl = DO_UPCAST(PCIQXLDevice, pci, dev);
2093 
2094     qxl->id = device_id++;
2095     qxl_init_ramsize(qxl);
2096     memory_region_init_ram(&qxl->vga.vram, OBJECT(dev), "qxl.vgavram",
2097                            qxl->vga.vram_size);
2098     vmstate_register_ram(&qxl->vga.vram, &qxl->pci.qdev);
2099     qxl->vga.vram_ptr = memory_region_get_ram_ptr(&qxl->vga.vram);
2100     qxl->vga.con = graphic_console_init(DEVICE(dev), 0, &qxl_ops, qxl);
2101 
2102     return qxl_init_common(qxl);
2103 }
2104 
2105 static void qxl_pre_save(void *opaque)
2106 {
2107     PCIQXLDevice* d = opaque;
2108     uint8_t *ram_start = d->vga.vram_ptr;
2109 
2110     trace_qxl_pre_save(d->id);
2111     if (d->last_release == NULL) {
2112         d->last_release_offset = 0;
2113     } else {
2114         d->last_release_offset = (uint8_t *)d->last_release - ram_start;
2115     }
2116     assert(d->last_release_offset < d->vga.vram_size);
2117 }
2118 
2119 static int qxl_pre_load(void *opaque)
2120 {
2121     PCIQXLDevice* d = opaque;
2122 
2123     trace_qxl_pre_load(d->id);
2124     qxl_hard_reset(d, 1);
2125     qxl_exit_vga_mode(d);
2126     return 0;
2127 }
2128 
2129 static void qxl_create_memslots(PCIQXLDevice *d)
2130 {
2131     int i;
2132 
2133     for (i = 0; i < NUM_MEMSLOTS; i++) {
2134         if (!d->guest_slots[i].active) {
2135             continue;
2136         }
2137         qxl_add_memslot(d, i, 0, QXL_SYNC);
2138     }
2139 }
2140 
2141 static int qxl_post_load(void *opaque, int version)
2142 {
2143     PCIQXLDevice* d = opaque;
2144     uint8_t *ram_start = d->vga.vram_ptr;
2145     QXLCommandExt *cmds;
2146     int in, out, newmode;
2147 
2148     assert(d->last_release_offset < d->vga.vram_size);
2149     if (d->last_release_offset == 0) {
2150         d->last_release = NULL;
2151     } else {
2152         d->last_release = (QXLReleaseInfo *)(ram_start + d->last_release_offset);
2153     }
2154 
2155     d->modes = (QXLModes*)((uint8_t*)d->rom + d->rom->modes_offset);
2156 
2157     trace_qxl_post_load(d->id, qxl_mode_to_string(d->mode));
2158     newmode = d->mode;
2159     d->mode = QXL_MODE_UNDEFINED;
2160 
2161     switch (newmode) {
2162     case QXL_MODE_UNDEFINED:
2163         qxl_create_memslots(d);
2164         break;
2165     case QXL_MODE_VGA:
2166         qxl_create_memslots(d);
2167         qxl_enter_vga_mode(d);
2168         break;
2169     case QXL_MODE_NATIVE:
2170         qxl_create_memslots(d);
2171         qxl_create_guest_primary(d, 1, QXL_SYNC);
2172 
2173         /* replay surface-create and cursor-set commands */
2174         cmds = g_malloc0(sizeof(QXLCommandExt) * (d->ssd.num_surfaces + 1));
2175         for (in = 0, out = 0; in < d->ssd.num_surfaces; in++) {
2176             if (d->guest_surfaces.cmds[in] == 0) {
2177                 continue;
2178             }
2179             cmds[out].cmd.data = d->guest_surfaces.cmds[in];
2180             cmds[out].cmd.type = QXL_CMD_SURFACE;
2181             cmds[out].group_id = MEMSLOT_GROUP_GUEST;
2182             out++;
2183         }
2184         if (d->guest_cursor) {
2185             cmds[out].cmd.data = d->guest_cursor;
2186             cmds[out].cmd.type = QXL_CMD_CURSOR;
2187             cmds[out].group_id = MEMSLOT_GROUP_GUEST;
2188             out++;
2189         }
2190         qxl_spice_loadvm_commands(d, cmds, out);
2191         g_free(cmds);
2192         if (d->guest_monitors_config) {
2193             qxl_spice_monitors_config_async(d, 1);
2194         }
2195         break;
2196     case QXL_MODE_COMPAT:
2197         /* note: no need to call qxl_create_memslots, qxl_set_mode
2198          * creates the mem slot. */
2199         qxl_set_mode(d, d->shadow_rom.mode, 1);
2200         break;
2201     }
2202     return 0;
2203 }
2204 
2205 #define QXL_SAVE_VERSION 21
2206 
2207 static bool qxl_monitors_config_needed(void *opaque)
2208 {
2209     PCIQXLDevice *qxl = opaque;
2210 
2211     return qxl->guest_monitors_config != 0;
2212 }
2213 
2214 
2215 static VMStateDescription qxl_memslot = {
2216     .name               = "qxl-memslot",
2217     .version_id         = QXL_SAVE_VERSION,
2218     .minimum_version_id = QXL_SAVE_VERSION,
2219     .fields = (VMStateField[]) {
2220         VMSTATE_UINT64(slot.mem_start, struct guest_slots),
2221         VMSTATE_UINT64(slot.mem_end,   struct guest_slots),
2222         VMSTATE_UINT32(active,         struct guest_slots),
2223         VMSTATE_END_OF_LIST()
2224     }
2225 };
2226 
2227 static VMStateDescription qxl_surface = {
2228     .name               = "qxl-surface",
2229     .version_id         = QXL_SAVE_VERSION,
2230     .minimum_version_id = QXL_SAVE_VERSION,
2231     .fields = (VMStateField[]) {
2232         VMSTATE_UINT32(width,      QXLSurfaceCreate),
2233         VMSTATE_UINT32(height,     QXLSurfaceCreate),
2234         VMSTATE_INT32(stride,      QXLSurfaceCreate),
2235         VMSTATE_UINT32(format,     QXLSurfaceCreate),
2236         VMSTATE_UINT32(position,   QXLSurfaceCreate),
2237         VMSTATE_UINT32(mouse_mode, QXLSurfaceCreate),
2238         VMSTATE_UINT32(flags,      QXLSurfaceCreate),
2239         VMSTATE_UINT32(type,       QXLSurfaceCreate),
2240         VMSTATE_UINT64(mem,        QXLSurfaceCreate),
2241         VMSTATE_END_OF_LIST()
2242     }
2243 };
2244 
2245 static VMStateDescription qxl_vmstate_monitors_config = {
2246     .name               = "qxl/monitors-config",
2247     .version_id         = 1,
2248     .minimum_version_id = 1,
2249     .fields = (VMStateField[]) {
2250         VMSTATE_UINT64(guest_monitors_config, PCIQXLDevice),
2251         VMSTATE_END_OF_LIST()
2252     },
2253 };
2254 
2255 static VMStateDescription qxl_vmstate = {
2256     .name               = "qxl",
2257     .version_id         = QXL_SAVE_VERSION,
2258     .minimum_version_id = QXL_SAVE_VERSION,
2259     .pre_save           = qxl_pre_save,
2260     .pre_load           = qxl_pre_load,
2261     .post_load          = qxl_post_load,
2262     .fields = (VMStateField[]) {
2263         VMSTATE_PCI_DEVICE(pci, PCIQXLDevice),
2264         VMSTATE_STRUCT(vga, PCIQXLDevice, 0, vmstate_vga_common, VGACommonState),
2265         VMSTATE_UINT32(shadow_rom.mode, PCIQXLDevice),
2266         VMSTATE_UINT32(num_free_res, PCIQXLDevice),
2267         VMSTATE_UINT32(last_release_offset, PCIQXLDevice),
2268         VMSTATE_UINT32(mode, PCIQXLDevice),
2269         VMSTATE_UINT32(ssd.unique, PCIQXLDevice),
2270         VMSTATE_INT32_EQUAL(num_memslots, PCIQXLDevice),
2271         VMSTATE_STRUCT_ARRAY(guest_slots, PCIQXLDevice, NUM_MEMSLOTS, 0,
2272                              qxl_memslot, struct guest_slots),
2273         VMSTATE_STRUCT(guest_primary.surface, PCIQXLDevice, 0,
2274                        qxl_surface, QXLSurfaceCreate),
2275         VMSTATE_INT32_EQUAL(ssd.num_surfaces, PCIQXLDevice),
2276         VMSTATE_VARRAY_INT32(guest_surfaces.cmds, PCIQXLDevice,
2277                              ssd.num_surfaces, 0,
2278                              vmstate_info_uint64, uint64_t),
2279         VMSTATE_UINT64(guest_cursor, PCIQXLDevice),
2280         VMSTATE_END_OF_LIST()
2281     },
2282     .subsections = (VMStateSubsection[]) {
2283         {
2284             .vmsd = &qxl_vmstate_monitors_config,
2285             .needed = qxl_monitors_config_needed,
2286         }, {
2287             /* empty */
2288         }
2289     }
2290 };
2291 
2292 static Property qxl_properties[] = {
2293         DEFINE_PROP_UINT32("ram_size", PCIQXLDevice, vga.vram_size,
2294                            64 * 1024 * 1024),
2295         DEFINE_PROP_UINT32("vram_size", PCIQXLDevice, vram32_size,
2296                            64 * 1024 * 1024),
2297         DEFINE_PROP_UINT32("revision", PCIQXLDevice, revision,
2298                            QXL_DEFAULT_REVISION),
2299         DEFINE_PROP_UINT32("debug", PCIQXLDevice, debug, 0),
2300         DEFINE_PROP_UINT32("guestdebug", PCIQXLDevice, guestdebug, 0),
2301         DEFINE_PROP_UINT32("cmdlog", PCIQXLDevice, cmdlog, 0),
2302         DEFINE_PROP_UINT32("ram_size_mb",  PCIQXLDevice, ram_size_mb, -1),
2303         DEFINE_PROP_UINT32("vram_size_mb", PCIQXLDevice, vram32_size_mb, -1),
2304         DEFINE_PROP_UINT32("vram64_size_mb", PCIQXLDevice, vram_size_mb, -1),
2305         DEFINE_PROP_UINT32("vgamem_mb", PCIQXLDevice, vgamem_size_mb, 16),
2306         DEFINE_PROP_INT32("surfaces", PCIQXLDevice, ssd.num_surfaces, 1024),
2307         DEFINE_PROP_END_OF_LIST(),
2308 };
2309 
2310 static void qxl_primary_class_init(ObjectClass *klass, void *data)
2311 {
2312     DeviceClass *dc = DEVICE_CLASS(klass);
2313     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2314 
2315     k->init = qxl_init_primary;
2316     k->romfile = "vgabios-qxl.bin";
2317     k->vendor_id = REDHAT_PCI_VENDOR_ID;
2318     k->device_id = QXL_DEVICE_ID_STABLE;
2319     k->class_id = PCI_CLASS_DISPLAY_VGA;
2320     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
2321     dc->desc = "Spice QXL GPU (primary, vga compatible)";
2322     dc->reset = qxl_reset_handler;
2323     dc->vmsd = &qxl_vmstate;
2324     dc->props = qxl_properties;
2325     dc->hotpluggable = false;
2326 }
2327 
2328 static const TypeInfo qxl_primary_info = {
2329     .name          = "qxl-vga",
2330     .parent        = TYPE_PCI_DEVICE,
2331     .instance_size = sizeof(PCIQXLDevice),
2332     .class_init    = qxl_primary_class_init,
2333 };
2334 
2335 static void qxl_secondary_class_init(ObjectClass *klass, void *data)
2336 {
2337     DeviceClass *dc = DEVICE_CLASS(klass);
2338     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2339 
2340     k->init = qxl_init_secondary;
2341     k->vendor_id = REDHAT_PCI_VENDOR_ID;
2342     k->device_id = QXL_DEVICE_ID_STABLE;
2343     k->class_id = PCI_CLASS_DISPLAY_OTHER;
2344     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
2345     dc->desc = "Spice QXL GPU (secondary)";
2346     dc->reset = qxl_reset_handler;
2347     dc->vmsd = &qxl_vmstate;
2348     dc->props = qxl_properties;
2349 }
2350 
2351 static const TypeInfo qxl_secondary_info = {
2352     .name          = "qxl",
2353     .parent        = TYPE_PCI_DEVICE,
2354     .instance_size = sizeof(PCIQXLDevice),
2355     .class_init    = qxl_secondary_class_init,
2356 };
2357 
2358 static void qxl_register_types(void)
2359 {
2360     type_register_static(&qxl_primary_info);
2361     type_register_static(&qxl_secondary_info);
2362 }
2363 
2364 type_init(qxl_register_types)
2365