xref: /openbmc/qemu/hw/display/qxl.c (revision 56c4bfb3)
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 
23 #include "qemu-common.h"
24 #include "qemu/timer.h"
25 #include "qemu/queue.h"
26 #include "qemu/atomic.h"
27 #include "monitor/monitor.h"
28 #include "sysemu/sysemu.h"
29 #include "trace.h"
30 
31 #include "qxl.h"
32 
33 /*
34  * NOTE: SPICE_RING_PROD_ITEM accesses memory on the pci bar and as
35  * such can be changed by the guest, so to avoid a guest trigerrable
36  * abort we just qxl_set_guest_bug and set the return to NULL. Still
37  * it may happen as a result of emulator bug as well.
38  */
39 #undef SPICE_RING_PROD_ITEM
40 #define SPICE_RING_PROD_ITEM(qxl, r, ret) {                             \
41         uint32_t prod = (r)->prod & SPICE_RING_INDEX_MASK(r);           \
42         if (prod >= ARRAY_SIZE((r)->items)) {                           \
43             qxl_set_guest_bug(qxl, "SPICE_RING_PROD_ITEM indices mismatch " \
44                           "%u >= %zu", prod, ARRAY_SIZE((r)->items));   \
45             ret = NULL;                                                 \
46         } else {                                                        \
47             ret = &(r)->items[prod].el;                                 \
48         }                                                               \
49     }
50 
51 #undef SPICE_RING_CONS_ITEM
52 #define SPICE_RING_CONS_ITEM(qxl, r, ret) {                             \
53         uint32_t cons = (r)->cons & SPICE_RING_INDEX_MASK(r);           \
54         if (cons >= ARRAY_SIZE((r)->items)) {                           \
55             qxl_set_guest_bug(qxl, "SPICE_RING_CONS_ITEM indices mismatch " \
56                           "%u >= %zu", cons, ARRAY_SIZE((r)->items));   \
57             ret = NULL;                                                 \
58         } else {                                                        \
59             ret = &(r)->items[cons].el;                                 \
60         }                                                               \
61     }
62 
63 #undef ALIGN
64 #define ALIGN(a, b) (((a) + ((b) - 1)) & ~((b) - 1))
65 
66 #define PIXEL_SIZE 0.2936875 //1280x1024 is 14.8" x 11.9"
67 
68 #define QXL_MODE(_x, _y, _b, _o)                  \
69     {   .x_res = _x,                              \
70         .y_res = _y,                              \
71         .bits  = _b,                              \
72         .stride = (_x) * (_b) / 8,                \
73         .x_mili = PIXEL_SIZE * (_x),              \
74         .y_mili = PIXEL_SIZE * (_y),              \
75         .orientation = _o,                        \
76     }
77 
78 #define QXL_MODE_16_32(x_res, y_res, orientation) \
79     QXL_MODE(x_res, y_res, 16, orientation),      \
80     QXL_MODE(x_res, y_res, 32, orientation)
81 
82 #define QXL_MODE_EX(x_res, y_res)                 \
83     QXL_MODE_16_32(x_res, y_res, 0),              \
84     QXL_MODE_16_32(x_res, y_res, 1)
85 
86 static QXLMode qxl_modes[] = {
87     QXL_MODE_EX(640, 480),
88     QXL_MODE_EX(800, 480),
89     QXL_MODE_EX(800, 600),
90     QXL_MODE_EX(832, 624),
91     QXL_MODE_EX(960, 640),
92     QXL_MODE_EX(1024, 600),
93     QXL_MODE_EX(1024, 768),
94     QXL_MODE_EX(1152, 864),
95     QXL_MODE_EX(1152, 870),
96     QXL_MODE_EX(1280, 720),
97     QXL_MODE_EX(1280, 760),
98     QXL_MODE_EX(1280, 768),
99     QXL_MODE_EX(1280, 800),
100     QXL_MODE_EX(1280, 960),
101     QXL_MODE_EX(1280, 1024),
102     QXL_MODE_EX(1360, 768),
103     QXL_MODE_EX(1366, 768),
104     QXL_MODE_EX(1400, 1050),
105     QXL_MODE_EX(1440, 900),
106     QXL_MODE_EX(1600, 900),
107     QXL_MODE_EX(1600, 1200),
108     QXL_MODE_EX(1680, 1050),
109     QXL_MODE_EX(1920, 1080),
110     /* these modes need more than 8 MB video memory */
111     QXL_MODE_EX(1920, 1200),
112     QXL_MODE_EX(1920, 1440),
113     QXL_MODE_EX(2000, 2000),
114     QXL_MODE_EX(2048, 1536),
115     QXL_MODE_EX(2048, 2048),
116     QXL_MODE_EX(2560, 1440),
117     QXL_MODE_EX(2560, 1600),
118     /* these modes need more than 16 MB video memory */
119     QXL_MODE_EX(2560, 2048),
120     QXL_MODE_EX(2800, 2100),
121     QXL_MODE_EX(3200, 2400),
122     QXL_MODE_EX(3840, 2160), /* 4k mainstream */
123     QXL_MODE_EX(4096, 2160), /* 4k            */
124     QXL_MODE_EX(7680, 4320), /* 8k mainstream */
125     QXL_MODE_EX(8192, 4320), /* 8k            */
126 };
127 
128 static void qxl_send_events(PCIQXLDevice *d, uint32_t events);
129 static int qxl_destroy_primary(PCIQXLDevice *d, qxl_async_io async);
130 static void qxl_reset_memslots(PCIQXLDevice *d);
131 static void qxl_reset_surfaces(PCIQXLDevice *d);
132 static void qxl_ring_set_dirty(PCIQXLDevice *qxl);
133 
134 void qxl_set_guest_bug(PCIQXLDevice *qxl, const char *msg, ...)
135 {
136     trace_qxl_set_guest_bug(qxl->id);
137     qxl_send_events(qxl, QXL_INTERRUPT_ERROR);
138     qxl->guest_bug = 1;
139     if (qxl->guestdebug) {
140         va_list ap;
141         va_start(ap, msg);
142         fprintf(stderr, "qxl-%d: guest bug: ", qxl->id);
143         vfprintf(stderr, msg, ap);
144         fprintf(stderr, "\n");
145         va_end(ap);
146     }
147 }
148 
149 static void qxl_clear_guest_bug(PCIQXLDevice *qxl)
150 {
151     qxl->guest_bug = 0;
152 }
153 
154 void qxl_spice_update_area(PCIQXLDevice *qxl, uint32_t surface_id,
155                            struct QXLRect *area, struct QXLRect *dirty_rects,
156                            uint32_t num_dirty_rects,
157                            uint32_t clear_dirty_region,
158                            qxl_async_io async, struct QXLCookie *cookie)
159 {
160     trace_qxl_spice_update_area(qxl->id, surface_id, area->left, area->right,
161                                 area->top, area->bottom);
162     trace_qxl_spice_update_area_rest(qxl->id, num_dirty_rects,
163                                      clear_dirty_region);
164     if (async == QXL_SYNC) {
165         qxl->ssd.worker->update_area(qxl->ssd.worker, surface_id, area,
166                         dirty_rects, num_dirty_rects, clear_dirty_region);
167     } else {
168         assert(cookie != NULL);
169         spice_qxl_update_area_async(&qxl->ssd.qxl, surface_id, area,
170                                     clear_dirty_region, (uintptr_t)cookie);
171     }
172 }
173 
174 static void qxl_spice_destroy_surface_wait_complete(PCIQXLDevice *qxl,
175                                                     uint32_t id)
176 {
177     trace_qxl_spice_destroy_surface_wait_complete(qxl->id, id);
178     qemu_mutex_lock(&qxl->track_lock);
179     qxl->guest_surfaces.cmds[id] = 0;
180     qxl->guest_surfaces.count--;
181     qemu_mutex_unlock(&qxl->track_lock);
182 }
183 
184 static void qxl_spice_destroy_surface_wait(PCIQXLDevice *qxl, uint32_t id,
185                                            qxl_async_io async)
186 {
187     QXLCookie *cookie;
188 
189     trace_qxl_spice_destroy_surface_wait(qxl->id, id, async);
190     if (async) {
191         cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
192                                 QXL_IO_DESTROY_SURFACE_ASYNC);
193         cookie->u.surface_id = id;
194         spice_qxl_destroy_surface_async(&qxl->ssd.qxl, id, (uintptr_t)cookie);
195     } else {
196         qxl->ssd.worker->destroy_surface_wait(qxl->ssd.worker, id);
197         qxl_spice_destroy_surface_wait_complete(qxl, id);
198     }
199 }
200 
201 static void qxl_spice_flush_surfaces_async(PCIQXLDevice *qxl)
202 {
203     trace_qxl_spice_flush_surfaces_async(qxl->id, qxl->guest_surfaces.count,
204                                          qxl->num_free_res);
205     spice_qxl_flush_surfaces_async(&qxl->ssd.qxl,
206         (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
207                                   QXL_IO_FLUSH_SURFACES_ASYNC));
208 }
209 
210 void qxl_spice_loadvm_commands(PCIQXLDevice *qxl, struct QXLCommandExt *ext,
211                                uint32_t count)
212 {
213     trace_qxl_spice_loadvm_commands(qxl->id, ext, count);
214     qxl->ssd.worker->loadvm_commands(qxl->ssd.worker, ext, count);
215 }
216 
217 void qxl_spice_oom(PCIQXLDevice *qxl)
218 {
219     trace_qxl_spice_oom(qxl->id);
220     qxl->ssd.worker->oom(qxl->ssd.worker);
221 }
222 
223 void qxl_spice_reset_memslots(PCIQXLDevice *qxl)
224 {
225     trace_qxl_spice_reset_memslots(qxl->id);
226     qxl->ssd.worker->reset_memslots(qxl->ssd.worker);
227 }
228 
229 static void qxl_spice_destroy_surfaces_complete(PCIQXLDevice *qxl)
230 {
231     trace_qxl_spice_destroy_surfaces_complete(qxl->id);
232     qemu_mutex_lock(&qxl->track_lock);
233     memset(qxl->guest_surfaces.cmds, 0,
234            sizeof(qxl->guest_surfaces.cmds[0]) * qxl->ssd.num_surfaces);
235     qxl->guest_surfaces.count = 0;
236     qemu_mutex_unlock(&qxl->track_lock);
237 }
238 
239 static void qxl_spice_destroy_surfaces(PCIQXLDevice *qxl, qxl_async_io async)
240 {
241     trace_qxl_spice_destroy_surfaces(qxl->id, async);
242     if (async) {
243         spice_qxl_destroy_surfaces_async(&qxl->ssd.qxl,
244                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
245                                           QXL_IO_DESTROY_ALL_SURFACES_ASYNC));
246     } else {
247         qxl->ssd.worker->destroy_surfaces(qxl->ssd.worker);
248         qxl_spice_destroy_surfaces_complete(qxl);
249     }
250 }
251 
252 static void qxl_spice_monitors_config_async(PCIQXLDevice *qxl, int replay)
253 {
254     trace_qxl_spice_monitors_config(qxl->id);
255     if (replay) {
256         /*
257          * don't use QXL_COOKIE_TYPE_IO:
258          *  - we are not running yet (post_load), we will assert
259          *    in send_events
260          *  - this is not a guest io, but a reply, so async_io isn't set.
261          */
262         spice_qxl_monitors_config_async(&qxl->ssd.qxl,
263                 qxl->guest_monitors_config,
264                 MEMSLOT_GROUP_GUEST,
265                 (uintptr_t)qxl_cookie_new(
266                     QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG,
267                     0));
268     } else {
269         qxl->guest_monitors_config = qxl->ram->monitors_config;
270         spice_qxl_monitors_config_async(&qxl->ssd.qxl,
271                 qxl->ram->monitors_config,
272                 MEMSLOT_GROUP_GUEST,
273                 (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
274                                           QXL_IO_MONITORS_CONFIG_ASYNC));
275     }
276 }
277 
278 void qxl_spice_reset_image_cache(PCIQXLDevice *qxl)
279 {
280     trace_qxl_spice_reset_image_cache(qxl->id);
281     qxl->ssd.worker->reset_image_cache(qxl->ssd.worker);
282 }
283 
284 void qxl_spice_reset_cursor(PCIQXLDevice *qxl)
285 {
286     trace_qxl_spice_reset_cursor(qxl->id);
287     qxl->ssd.worker->reset_cursor(qxl->ssd.worker);
288     qemu_mutex_lock(&qxl->track_lock);
289     qxl->guest_cursor = 0;
290     qemu_mutex_unlock(&qxl->track_lock);
291     if (qxl->ssd.cursor) {
292         cursor_put(qxl->ssd.cursor);
293     }
294     qxl->ssd.cursor = cursor_builtin_hidden();
295 }
296 
297 
298 static inline uint32_t msb_mask(uint32_t val)
299 {
300     uint32_t mask;
301 
302     do {
303         mask = ~(val - 1) & val;
304         val &= ~mask;
305     } while (mask < val);
306 
307     return mask;
308 }
309 
310 static ram_addr_t qxl_rom_size(void)
311 {
312     uint32_t required_rom_size = sizeof(QXLRom) + sizeof(QXLModes) +
313                                  sizeof(qxl_modes);
314     uint32_t rom_size = 8192; /* two pages */
315 
316     required_rom_size = MAX(required_rom_size, TARGET_PAGE_SIZE);
317     required_rom_size = msb_mask(required_rom_size * 2 - 1);
318     assert(required_rom_size <= rom_size);
319     return rom_size;
320 }
321 
322 static void init_qxl_rom(PCIQXLDevice *d)
323 {
324     QXLRom *rom = memory_region_get_ram_ptr(&d->rom_bar);
325     QXLModes *modes = (QXLModes *)(rom + 1);
326     uint32_t ram_header_size;
327     uint32_t surface0_area_size;
328     uint32_t num_pages;
329     uint32_t fb;
330     int i, n;
331 
332     memset(rom, 0, d->rom_size);
333 
334     rom->magic         = cpu_to_le32(QXL_ROM_MAGIC);
335     rom->id            = cpu_to_le32(d->id);
336     rom->log_level     = cpu_to_le32(d->guestdebug);
337     rom->modes_offset  = cpu_to_le32(sizeof(QXLRom));
338 
339     rom->slot_gen_bits = MEMSLOT_GENERATION_BITS;
340     rom->slot_id_bits  = MEMSLOT_SLOT_BITS;
341     rom->slots_start   = 1;
342     rom->slots_end     = NUM_MEMSLOTS - 1;
343     rom->n_surfaces    = cpu_to_le32(d->ssd.num_surfaces);
344 
345     for (i = 0, n = 0; i < ARRAY_SIZE(qxl_modes); i++) {
346         fb = qxl_modes[i].y_res * qxl_modes[i].stride;
347         if (fb > d->vgamem_size) {
348             continue;
349         }
350         modes->modes[n].id          = cpu_to_le32(i);
351         modes->modes[n].x_res       = cpu_to_le32(qxl_modes[i].x_res);
352         modes->modes[n].y_res       = cpu_to_le32(qxl_modes[i].y_res);
353         modes->modes[n].bits        = cpu_to_le32(qxl_modes[i].bits);
354         modes->modes[n].stride      = cpu_to_le32(qxl_modes[i].stride);
355         modes->modes[n].x_mili      = cpu_to_le32(qxl_modes[i].x_mili);
356         modes->modes[n].y_mili      = cpu_to_le32(qxl_modes[i].y_mili);
357         modes->modes[n].orientation = cpu_to_le32(qxl_modes[i].orientation);
358         n++;
359     }
360     modes->n_modes     = cpu_to_le32(n);
361 
362     ram_header_size    = ALIGN(sizeof(QXLRam), 4096);
363     surface0_area_size = ALIGN(d->vgamem_size, 4096);
364     num_pages          = d->vga.vram_size;
365     num_pages         -= ram_header_size;
366     num_pages         -= surface0_area_size;
367     num_pages          = num_pages / TARGET_PAGE_SIZE;
368 
369     rom->draw_area_offset   = cpu_to_le32(0);
370     rom->surface0_area_size = cpu_to_le32(surface0_area_size);
371     rom->pages_offset       = cpu_to_le32(surface0_area_size);
372     rom->num_pages          = cpu_to_le32(num_pages);
373     rom->ram_header_offset  = cpu_to_le32(d->vga.vram_size - ram_header_size);
374 
375     d->shadow_rom = *rom;
376     d->rom        = rom;
377     d->modes      = modes;
378 }
379 
380 static void init_qxl_ram(PCIQXLDevice *d)
381 {
382     uint8_t *buf;
383     uint64_t *item;
384 
385     buf = d->vga.vram_ptr;
386     d->ram = (QXLRam *)(buf + le32_to_cpu(d->shadow_rom.ram_header_offset));
387     d->ram->magic       = cpu_to_le32(QXL_RAM_MAGIC);
388     d->ram->int_pending = cpu_to_le32(0);
389     d->ram->int_mask    = cpu_to_le32(0);
390     d->ram->update_surface = 0;
391     d->ram->monitors_config = 0;
392     SPICE_RING_INIT(&d->ram->cmd_ring);
393     SPICE_RING_INIT(&d->ram->cursor_ring);
394     SPICE_RING_INIT(&d->ram->release_ring);
395     SPICE_RING_PROD_ITEM(d, &d->ram->release_ring, item);
396     assert(item);
397     *item = 0;
398     qxl_ring_set_dirty(d);
399 }
400 
401 /* can be called from spice server thread context */
402 static void qxl_set_dirty(MemoryRegion *mr, ram_addr_t addr, ram_addr_t end)
403 {
404     memory_region_set_dirty(mr, addr, end - addr);
405 }
406 
407 static void qxl_rom_set_dirty(PCIQXLDevice *qxl)
408 {
409     qxl_set_dirty(&qxl->rom_bar, 0, qxl->rom_size);
410 }
411 
412 /* called from spice server thread context only */
413 static void qxl_ram_set_dirty(PCIQXLDevice *qxl, void *ptr)
414 {
415     void *base = qxl->vga.vram_ptr;
416     intptr_t offset;
417 
418     offset = ptr - base;
419     offset &= ~(TARGET_PAGE_SIZE-1);
420     assert(offset < qxl->vga.vram_size);
421     qxl_set_dirty(&qxl->vga.vram, offset, offset + TARGET_PAGE_SIZE);
422 }
423 
424 /* can be called from spice server thread context */
425 static void qxl_ring_set_dirty(PCIQXLDevice *qxl)
426 {
427     ram_addr_t addr = qxl->shadow_rom.ram_header_offset;
428     ram_addr_t end  = qxl->vga.vram_size;
429     qxl_set_dirty(&qxl->vga.vram, addr, end);
430 }
431 
432 /*
433  * keep track of some command state, for savevm/loadvm.
434  * called from spice server thread context only
435  */
436 static int qxl_track_command(PCIQXLDevice *qxl, struct QXLCommandExt *ext)
437 {
438     switch (le32_to_cpu(ext->cmd.type)) {
439     case QXL_CMD_SURFACE:
440     {
441         QXLSurfaceCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
442 
443         if (!cmd) {
444             return 1;
445         }
446         uint32_t id = le32_to_cpu(cmd->surface_id);
447 
448         if (id >= qxl->ssd.num_surfaces) {
449             qxl_set_guest_bug(qxl, "QXL_CMD_SURFACE id %d >= %d", id,
450                               qxl->ssd.num_surfaces);
451             return 1;
452         }
453         if (cmd->type == QXL_SURFACE_CMD_CREATE &&
454             (cmd->u.surface_create.stride & 0x03) != 0) {
455             qxl_set_guest_bug(qxl, "QXL_CMD_SURFACE stride = %d %% 4 != 0\n",
456                               cmd->u.surface_create.stride);
457             return 1;
458         }
459         qemu_mutex_lock(&qxl->track_lock);
460         if (cmd->type == QXL_SURFACE_CMD_CREATE) {
461             qxl->guest_surfaces.cmds[id] = ext->cmd.data;
462             qxl->guest_surfaces.count++;
463             if (qxl->guest_surfaces.max < qxl->guest_surfaces.count)
464                 qxl->guest_surfaces.max = qxl->guest_surfaces.count;
465         }
466         if (cmd->type == QXL_SURFACE_CMD_DESTROY) {
467             qxl->guest_surfaces.cmds[id] = 0;
468             qxl->guest_surfaces.count--;
469         }
470         qemu_mutex_unlock(&qxl->track_lock);
471         break;
472     }
473     case QXL_CMD_CURSOR:
474     {
475         QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
476 
477         if (!cmd) {
478             return 1;
479         }
480         if (cmd->type == QXL_CURSOR_SET) {
481             qemu_mutex_lock(&qxl->track_lock);
482             qxl->guest_cursor = ext->cmd.data;
483             qemu_mutex_unlock(&qxl->track_lock);
484         }
485         break;
486     }
487     }
488     return 0;
489 }
490 
491 /* spice display interface callbacks */
492 
493 static void interface_attach_worker(QXLInstance *sin, QXLWorker *qxl_worker)
494 {
495     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
496 
497     trace_qxl_interface_attach_worker(qxl->id);
498     qxl->ssd.worker = qxl_worker;
499 }
500 
501 static void interface_set_compression_level(QXLInstance *sin, int level)
502 {
503     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
504 
505     trace_qxl_interface_set_compression_level(qxl->id, level);
506     qxl->shadow_rom.compression_level = cpu_to_le32(level);
507     qxl->rom->compression_level = cpu_to_le32(level);
508     qxl_rom_set_dirty(qxl);
509 }
510 
511 static void interface_set_mm_time(QXLInstance *sin, uint32_t mm_time)
512 {
513     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
514 
515     trace_qxl_interface_set_mm_time(qxl->id, mm_time);
516     qxl->shadow_rom.mm_clock = cpu_to_le32(mm_time);
517     qxl->rom->mm_clock = cpu_to_le32(mm_time);
518     qxl_rom_set_dirty(qxl);
519 }
520 
521 static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info)
522 {
523     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
524 
525     trace_qxl_interface_get_init_info(qxl->id);
526     info->memslot_gen_bits = MEMSLOT_GENERATION_BITS;
527     info->memslot_id_bits = MEMSLOT_SLOT_BITS;
528     info->num_memslots = NUM_MEMSLOTS;
529     info->num_memslots_groups = NUM_MEMSLOTS_GROUPS;
530     info->internal_groupslot_id = 0;
531     info->qxl_ram_size = le32_to_cpu(qxl->shadow_rom.num_pages) << TARGET_PAGE_BITS;
532     info->n_surfaces = qxl->ssd.num_surfaces;
533 }
534 
535 static const char *qxl_mode_to_string(int mode)
536 {
537     switch (mode) {
538     case QXL_MODE_COMPAT:
539         return "compat";
540     case QXL_MODE_NATIVE:
541         return "native";
542     case QXL_MODE_UNDEFINED:
543         return "undefined";
544     case QXL_MODE_VGA:
545         return "vga";
546     }
547     return "INVALID";
548 }
549 
550 static const char *io_port_to_string(uint32_t io_port)
551 {
552     if (io_port >= QXL_IO_RANGE_SIZE) {
553         return "out of range";
554     }
555     static const char *io_port_to_string[QXL_IO_RANGE_SIZE + 1] = {
556         [QXL_IO_NOTIFY_CMD]             = "QXL_IO_NOTIFY_CMD",
557         [QXL_IO_NOTIFY_CURSOR]          = "QXL_IO_NOTIFY_CURSOR",
558         [QXL_IO_UPDATE_AREA]            = "QXL_IO_UPDATE_AREA",
559         [QXL_IO_UPDATE_IRQ]             = "QXL_IO_UPDATE_IRQ",
560         [QXL_IO_NOTIFY_OOM]             = "QXL_IO_NOTIFY_OOM",
561         [QXL_IO_RESET]                  = "QXL_IO_RESET",
562         [QXL_IO_SET_MODE]               = "QXL_IO_SET_MODE",
563         [QXL_IO_LOG]                    = "QXL_IO_LOG",
564         [QXL_IO_MEMSLOT_ADD]            = "QXL_IO_MEMSLOT_ADD",
565         [QXL_IO_MEMSLOT_DEL]            = "QXL_IO_MEMSLOT_DEL",
566         [QXL_IO_DETACH_PRIMARY]         = "QXL_IO_DETACH_PRIMARY",
567         [QXL_IO_ATTACH_PRIMARY]         = "QXL_IO_ATTACH_PRIMARY",
568         [QXL_IO_CREATE_PRIMARY]         = "QXL_IO_CREATE_PRIMARY",
569         [QXL_IO_DESTROY_PRIMARY]        = "QXL_IO_DESTROY_PRIMARY",
570         [QXL_IO_DESTROY_SURFACE_WAIT]   = "QXL_IO_DESTROY_SURFACE_WAIT",
571         [QXL_IO_DESTROY_ALL_SURFACES]   = "QXL_IO_DESTROY_ALL_SURFACES",
572         [QXL_IO_UPDATE_AREA_ASYNC]      = "QXL_IO_UPDATE_AREA_ASYNC",
573         [QXL_IO_MEMSLOT_ADD_ASYNC]      = "QXL_IO_MEMSLOT_ADD_ASYNC",
574         [QXL_IO_CREATE_PRIMARY_ASYNC]   = "QXL_IO_CREATE_PRIMARY_ASYNC",
575         [QXL_IO_DESTROY_PRIMARY_ASYNC]  = "QXL_IO_DESTROY_PRIMARY_ASYNC",
576         [QXL_IO_DESTROY_SURFACE_ASYNC]  = "QXL_IO_DESTROY_SURFACE_ASYNC",
577         [QXL_IO_DESTROY_ALL_SURFACES_ASYNC]
578                                         = "QXL_IO_DESTROY_ALL_SURFACES_ASYNC",
579         [QXL_IO_FLUSH_SURFACES_ASYNC]   = "QXL_IO_FLUSH_SURFACES_ASYNC",
580         [QXL_IO_FLUSH_RELEASE]          = "QXL_IO_FLUSH_RELEASE",
581         [QXL_IO_MONITORS_CONFIG_ASYNC]  = "QXL_IO_MONITORS_CONFIG_ASYNC",
582     };
583     return io_port_to_string[io_port];
584 }
585 
586 /* called from spice server thread context only */
587 static int interface_get_command(QXLInstance *sin, struct QXLCommandExt *ext)
588 {
589     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
590     SimpleSpiceUpdate *update;
591     QXLCommandRing *ring;
592     QXLCommand *cmd;
593     int notify, ret;
594 
595     trace_qxl_ring_command_check(qxl->id, qxl_mode_to_string(qxl->mode));
596 
597     switch (qxl->mode) {
598     case QXL_MODE_VGA:
599         ret = false;
600         qemu_mutex_lock(&qxl->ssd.lock);
601         update = QTAILQ_FIRST(&qxl->ssd.updates);
602         if (update != NULL) {
603             QTAILQ_REMOVE(&qxl->ssd.updates, update, next);
604             *ext = update->ext;
605             ret = true;
606         }
607         qemu_mutex_unlock(&qxl->ssd.lock);
608         if (ret) {
609             trace_qxl_ring_command_get(qxl->id, qxl_mode_to_string(qxl->mode));
610             qxl_log_command(qxl, "vga", ext);
611         }
612         return ret;
613     case QXL_MODE_COMPAT:
614     case QXL_MODE_NATIVE:
615     case QXL_MODE_UNDEFINED:
616         ring = &qxl->ram->cmd_ring;
617         if (qxl->guest_bug || SPICE_RING_IS_EMPTY(ring)) {
618             return false;
619         }
620         SPICE_RING_CONS_ITEM(qxl, ring, cmd);
621         if (!cmd) {
622             return false;
623         }
624         ext->cmd      = *cmd;
625         ext->group_id = MEMSLOT_GROUP_GUEST;
626         ext->flags    = qxl->cmdflags;
627         SPICE_RING_POP(ring, notify);
628         qxl_ring_set_dirty(qxl);
629         if (notify) {
630             qxl_send_events(qxl, QXL_INTERRUPT_DISPLAY);
631         }
632         qxl->guest_primary.commands++;
633         qxl_track_command(qxl, ext);
634         qxl_log_command(qxl, "cmd", ext);
635         trace_qxl_ring_command_get(qxl->id, qxl_mode_to_string(qxl->mode));
636         return true;
637     default:
638         return false;
639     }
640 }
641 
642 /* called from spice server thread context only */
643 static int interface_req_cmd_notification(QXLInstance *sin)
644 {
645     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
646     int wait = 1;
647 
648     trace_qxl_ring_command_req_notification(qxl->id);
649     switch (qxl->mode) {
650     case QXL_MODE_COMPAT:
651     case QXL_MODE_NATIVE:
652     case QXL_MODE_UNDEFINED:
653         SPICE_RING_CONS_WAIT(&qxl->ram->cmd_ring, wait);
654         qxl_ring_set_dirty(qxl);
655         break;
656     default:
657         /* nothing */
658         break;
659     }
660     return wait;
661 }
662 
663 /* called from spice server thread context only */
664 static inline void qxl_push_free_res(PCIQXLDevice *d, int flush)
665 {
666     QXLReleaseRing *ring = &d->ram->release_ring;
667     uint64_t *item;
668     int notify;
669 
670 #define QXL_FREE_BUNCH_SIZE 32
671 
672     if (ring->prod - ring->cons + 1 == ring->num_items) {
673         /* ring full -- can't push */
674         return;
675     }
676     if (!flush && d->oom_running) {
677         /* collect everything from oom handler before pushing */
678         return;
679     }
680     if (!flush && d->num_free_res < QXL_FREE_BUNCH_SIZE) {
681         /* collect a bit more before pushing */
682         return;
683     }
684 
685     SPICE_RING_PUSH(ring, notify);
686     trace_qxl_ring_res_push(d->id, qxl_mode_to_string(d->mode),
687            d->guest_surfaces.count, d->num_free_res,
688            d->last_release, notify ? "yes" : "no");
689     trace_qxl_ring_res_push_rest(d->id, ring->prod - ring->cons,
690            ring->num_items, ring->prod, ring->cons);
691     if (notify) {
692         qxl_send_events(d, QXL_INTERRUPT_DISPLAY);
693     }
694     SPICE_RING_PROD_ITEM(d, ring, item);
695     if (!item) {
696         return;
697     }
698     *item = 0;
699     d->num_free_res = 0;
700     d->last_release = NULL;
701     qxl_ring_set_dirty(d);
702 }
703 
704 /* called from spice server thread context only */
705 static void interface_release_resource(QXLInstance *sin,
706                                        struct QXLReleaseInfoExt ext)
707 {
708     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
709     QXLReleaseRing *ring;
710     uint64_t *item, id;
711 
712     if (ext.group_id == MEMSLOT_GROUP_HOST) {
713         /* host group -> vga mode update request */
714         qemu_spice_destroy_update(&qxl->ssd, (void *)(intptr_t)ext.info->id);
715         return;
716     }
717 
718     /*
719      * ext->info points into guest-visible memory
720      * pci bar 0, $command.release_info
721      */
722     ring = &qxl->ram->release_ring;
723     SPICE_RING_PROD_ITEM(qxl, ring, item);
724     if (!item) {
725         return;
726     }
727     if (*item == 0) {
728         /* stick head into the ring */
729         id = ext.info->id;
730         ext.info->next = 0;
731         qxl_ram_set_dirty(qxl, &ext.info->next);
732         *item = id;
733         qxl_ring_set_dirty(qxl);
734     } else {
735         /* append item to the list */
736         qxl->last_release->next = ext.info->id;
737         qxl_ram_set_dirty(qxl, &qxl->last_release->next);
738         ext.info->next = 0;
739         qxl_ram_set_dirty(qxl, &ext.info->next);
740     }
741     qxl->last_release = ext.info;
742     qxl->num_free_res++;
743     trace_qxl_ring_res_put(qxl->id, qxl->num_free_res);
744     qxl_push_free_res(qxl, 0);
745 }
746 
747 /* called from spice server thread context only */
748 static int interface_get_cursor_command(QXLInstance *sin, struct QXLCommandExt *ext)
749 {
750     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
751     QXLCursorRing *ring;
752     QXLCommand *cmd;
753     int notify;
754 
755     trace_qxl_ring_cursor_check(qxl->id, qxl_mode_to_string(qxl->mode));
756 
757     switch (qxl->mode) {
758     case QXL_MODE_COMPAT:
759     case QXL_MODE_NATIVE:
760     case QXL_MODE_UNDEFINED:
761         ring = &qxl->ram->cursor_ring;
762         if (SPICE_RING_IS_EMPTY(ring)) {
763             return false;
764         }
765         SPICE_RING_CONS_ITEM(qxl, ring, cmd);
766         if (!cmd) {
767             return false;
768         }
769         ext->cmd      = *cmd;
770         ext->group_id = MEMSLOT_GROUP_GUEST;
771         ext->flags    = qxl->cmdflags;
772         SPICE_RING_POP(ring, notify);
773         qxl_ring_set_dirty(qxl);
774         if (notify) {
775             qxl_send_events(qxl, QXL_INTERRUPT_CURSOR);
776         }
777         qxl->guest_primary.commands++;
778         qxl_track_command(qxl, ext);
779         qxl_log_command(qxl, "csr", ext);
780         if (qxl->id == 0) {
781             qxl_render_cursor(qxl, ext);
782         }
783         trace_qxl_ring_cursor_get(qxl->id, qxl_mode_to_string(qxl->mode));
784         return true;
785     default:
786         return false;
787     }
788 }
789 
790 /* called from spice server thread context only */
791 static int interface_req_cursor_notification(QXLInstance *sin)
792 {
793     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
794     int wait = 1;
795 
796     trace_qxl_ring_cursor_req_notification(qxl->id);
797     switch (qxl->mode) {
798     case QXL_MODE_COMPAT:
799     case QXL_MODE_NATIVE:
800     case QXL_MODE_UNDEFINED:
801         SPICE_RING_CONS_WAIT(&qxl->ram->cursor_ring, wait);
802         qxl_ring_set_dirty(qxl);
803         break;
804     default:
805         /* nothing */
806         break;
807     }
808     return wait;
809 }
810 
811 /* called from spice server thread context */
812 static void interface_notify_update(QXLInstance *sin, uint32_t update_id)
813 {
814     /*
815      * Called by spice-server as a result of a QXL_CMD_UPDATE which is not in
816      * use by xf86-video-qxl and is defined out in the qxl windows driver.
817      * Probably was at some earlier version that is prior to git start (2009),
818      * and is still guest trigerrable.
819      */
820     fprintf(stderr, "%s: deprecated\n", __func__);
821 }
822 
823 /* called from spice server thread context only */
824 static int interface_flush_resources(QXLInstance *sin)
825 {
826     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
827     int ret;
828 
829     ret = qxl->num_free_res;
830     if (ret) {
831         qxl_push_free_res(qxl, 1);
832     }
833     return ret;
834 }
835 
836 static void qxl_create_guest_primary_complete(PCIQXLDevice *d);
837 
838 /* called from spice server thread context only */
839 static void interface_async_complete_io(PCIQXLDevice *qxl, QXLCookie *cookie)
840 {
841     uint32_t current_async;
842 
843     qemu_mutex_lock(&qxl->async_lock);
844     current_async = qxl->current_async;
845     qxl->current_async = QXL_UNDEFINED_IO;
846     qemu_mutex_unlock(&qxl->async_lock);
847 
848     trace_qxl_interface_async_complete_io(qxl->id, current_async, cookie);
849     if (!cookie) {
850         fprintf(stderr, "qxl: %s: error, cookie is NULL\n", __func__);
851         return;
852     }
853     if (cookie && current_async != cookie->io) {
854         fprintf(stderr,
855                 "qxl: %s: error: current_async = %d != %"
856                 PRId64 " = cookie->io\n", __func__, current_async, cookie->io);
857     }
858     switch (current_async) {
859     case QXL_IO_MEMSLOT_ADD_ASYNC:
860     case QXL_IO_DESTROY_PRIMARY_ASYNC:
861     case QXL_IO_UPDATE_AREA_ASYNC:
862     case QXL_IO_FLUSH_SURFACES_ASYNC:
863     case QXL_IO_MONITORS_CONFIG_ASYNC:
864         break;
865     case QXL_IO_CREATE_PRIMARY_ASYNC:
866         qxl_create_guest_primary_complete(qxl);
867         break;
868     case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
869         qxl_spice_destroy_surfaces_complete(qxl);
870         break;
871     case QXL_IO_DESTROY_SURFACE_ASYNC:
872         qxl_spice_destroy_surface_wait_complete(qxl, cookie->u.surface_id);
873         break;
874     default:
875         fprintf(stderr, "qxl: %s: unexpected current_async %d\n", __func__,
876                 current_async);
877     }
878     qxl_send_events(qxl, QXL_INTERRUPT_IO_CMD);
879 }
880 
881 /* called from spice server thread context only */
882 static void interface_update_area_complete(QXLInstance *sin,
883         uint32_t surface_id,
884         QXLRect *dirty, uint32_t num_updated_rects)
885 {
886     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
887     int i;
888     int qxl_i;
889 
890     qemu_mutex_lock(&qxl->ssd.lock);
891     if (surface_id != 0 || !qxl->render_update_cookie_num) {
892         qemu_mutex_unlock(&qxl->ssd.lock);
893         return;
894     }
895     trace_qxl_interface_update_area_complete(qxl->id, surface_id, dirty->left,
896             dirty->right, dirty->top, dirty->bottom);
897     trace_qxl_interface_update_area_complete_rest(qxl->id, num_updated_rects);
898     if (qxl->num_dirty_rects + num_updated_rects > QXL_NUM_DIRTY_RECTS) {
899         /*
900          * overflow - treat this as a full update. Not expected to be common.
901          */
902         trace_qxl_interface_update_area_complete_overflow(qxl->id,
903                                                           QXL_NUM_DIRTY_RECTS);
904         qxl->guest_primary.resized = 1;
905     }
906     if (qxl->guest_primary.resized) {
907         /*
908          * Don't bother copying or scheduling the bh since we will flip
909          * the whole area anyway on completion of the update_area async call
910          */
911         qemu_mutex_unlock(&qxl->ssd.lock);
912         return;
913     }
914     qxl_i = qxl->num_dirty_rects;
915     for (i = 0; i < num_updated_rects; i++) {
916         qxl->dirty[qxl_i++] = dirty[i];
917     }
918     qxl->num_dirty_rects += num_updated_rects;
919     trace_qxl_interface_update_area_complete_schedule_bh(qxl->id,
920                                                          qxl->num_dirty_rects);
921     qemu_bh_schedule(qxl->update_area_bh);
922     qemu_mutex_unlock(&qxl->ssd.lock);
923 }
924 
925 /* called from spice server thread context only */
926 static void interface_async_complete(QXLInstance *sin, uint64_t cookie_token)
927 {
928     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
929     QXLCookie *cookie = (QXLCookie *)(uintptr_t)cookie_token;
930 
931     switch (cookie->type) {
932     case QXL_COOKIE_TYPE_IO:
933         interface_async_complete_io(qxl, cookie);
934         g_free(cookie);
935         break;
936     case QXL_COOKIE_TYPE_RENDER_UPDATE_AREA:
937         qxl_render_update_area_done(qxl, cookie);
938         break;
939     case QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG:
940         break;
941     default:
942         fprintf(stderr, "qxl: %s: unexpected cookie type %d\n",
943                 __func__, cookie->type);
944         g_free(cookie);
945     }
946 }
947 
948 /* called from spice server thread context only */
949 static void interface_set_client_capabilities(QXLInstance *sin,
950                                               uint8_t client_present,
951                                               uint8_t caps[58])
952 {
953     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
954 
955     if (qxl->revision < 4) {
956         trace_qxl_set_client_capabilities_unsupported_by_revision(qxl->id,
957                                                               qxl->revision);
958         return;
959     }
960 
961     if (runstate_check(RUN_STATE_INMIGRATE) ||
962         runstate_check(RUN_STATE_POSTMIGRATE)) {
963         return;
964     }
965 
966     qxl->shadow_rom.client_present = client_present;
967     memcpy(qxl->shadow_rom.client_capabilities, caps,
968            sizeof(qxl->shadow_rom.client_capabilities));
969     qxl->rom->client_present = client_present;
970     memcpy(qxl->rom->client_capabilities, caps,
971            sizeof(qxl->rom->client_capabilities));
972     qxl_rom_set_dirty(qxl);
973 
974     qxl_send_events(qxl, QXL_INTERRUPT_CLIENT);
975 }
976 
977 static uint32_t qxl_crc32(const uint8_t *p, unsigned len)
978 {
979     /*
980      * zlib xors the seed with 0xffffffff, and xors the result
981      * again with 0xffffffff; Both are not done with linux's crc32,
982      * which we want to be compatible with, so undo that.
983      */
984     return crc32(0xffffffff, p, len) ^ 0xffffffff;
985 }
986 
987 /* called from main context only */
988 static int interface_client_monitors_config(QXLInstance *sin,
989                                         VDAgentMonitorsConfig *monitors_config)
990 {
991     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
992     QXLRom *rom = memory_region_get_ram_ptr(&qxl->rom_bar);
993     int i;
994 
995     if (qxl->revision < 4) {
996         trace_qxl_client_monitors_config_unsupported_by_device(qxl->id,
997                                                                qxl->revision);
998         return 0;
999     }
1000     /*
1001      * Older windows drivers set int_mask to 0 when their ISR is called,
1002      * then later set it to ~0. So it doesn't relate to the actual interrupts
1003      * handled. However, they are old, so clearly they don't support this
1004      * interrupt
1005      */
1006     if (qxl->ram->int_mask == 0 || qxl->ram->int_mask == ~0 ||
1007         !(qxl->ram->int_mask & QXL_INTERRUPT_CLIENT_MONITORS_CONFIG)) {
1008         trace_qxl_client_monitors_config_unsupported_by_guest(qxl->id,
1009                                                             qxl->ram->int_mask,
1010                                                             monitors_config);
1011         return 0;
1012     }
1013     if (!monitors_config) {
1014         return 1;
1015     }
1016     memset(&rom->client_monitors_config, 0,
1017            sizeof(rom->client_monitors_config));
1018     rom->client_monitors_config.count = monitors_config->num_of_monitors;
1019     /* monitors_config->flags ignored */
1020     if (rom->client_monitors_config.count >=
1021             ARRAY_SIZE(rom->client_monitors_config.heads)) {
1022         trace_qxl_client_monitors_config_capped(qxl->id,
1023                                 monitors_config->num_of_monitors,
1024                                 ARRAY_SIZE(rom->client_monitors_config.heads));
1025         rom->client_monitors_config.count =
1026             ARRAY_SIZE(rom->client_monitors_config.heads);
1027     }
1028     for (i = 0 ; i < rom->client_monitors_config.count ; ++i) {
1029         VDAgentMonConfig *monitor = &monitors_config->monitors[i];
1030         QXLURect *rect = &rom->client_monitors_config.heads[i];
1031         /* monitor->depth ignored */
1032         rect->left = monitor->x;
1033         rect->top = monitor->y;
1034         rect->right = monitor->x + monitor->width;
1035         rect->bottom = monitor->y + monitor->height;
1036     }
1037     rom->client_monitors_config_crc = qxl_crc32(
1038             (const uint8_t *)&rom->client_monitors_config,
1039             sizeof(rom->client_monitors_config));
1040     trace_qxl_client_monitors_config_crc(qxl->id,
1041             sizeof(rom->client_monitors_config),
1042             rom->client_monitors_config_crc);
1043 
1044     trace_qxl_interrupt_client_monitors_config(qxl->id,
1045                         rom->client_monitors_config.count,
1046                         rom->client_monitors_config.heads);
1047     qxl_send_events(qxl, QXL_INTERRUPT_CLIENT_MONITORS_CONFIG);
1048     return 1;
1049 }
1050 
1051 static const QXLInterface qxl_interface = {
1052     .base.type               = SPICE_INTERFACE_QXL,
1053     .base.description        = "qxl gpu",
1054     .base.major_version      = SPICE_INTERFACE_QXL_MAJOR,
1055     .base.minor_version      = SPICE_INTERFACE_QXL_MINOR,
1056 
1057     .attache_worker          = interface_attach_worker,
1058     .set_compression_level   = interface_set_compression_level,
1059     .set_mm_time             = interface_set_mm_time,
1060     .get_init_info           = interface_get_init_info,
1061 
1062     /* the callbacks below are called from spice server thread context */
1063     .get_command             = interface_get_command,
1064     .req_cmd_notification    = interface_req_cmd_notification,
1065     .release_resource        = interface_release_resource,
1066     .get_cursor_command      = interface_get_cursor_command,
1067     .req_cursor_notification = interface_req_cursor_notification,
1068     .notify_update           = interface_notify_update,
1069     .flush_resources         = interface_flush_resources,
1070     .async_complete          = interface_async_complete,
1071     .update_area_complete    = interface_update_area_complete,
1072     .set_client_capabilities = interface_set_client_capabilities,
1073     .client_monitors_config = interface_client_monitors_config,
1074 };
1075 
1076 static void qxl_enter_vga_mode(PCIQXLDevice *d)
1077 {
1078     if (d->mode == QXL_MODE_VGA) {
1079         return;
1080     }
1081     trace_qxl_enter_vga_mode(d->id);
1082 #if SPICE_SERVER_VERSION >= 0x000c03 /* release 0.12.3 */
1083     spice_qxl_driver_unload(&d->ssd.qxl);
1084 #endif
1085     qemu_spice_create_host_primary(&d->ssd);
1086     d->mode = QXL_MODE_VGA;
1087     vga_dirty_log_start(&d->vga);
1088     graphic_hw_update(d->vga.con);
1089 }
1090 
1091 static void qxl_exit_vga_mode(PCIQXLDevice *d)
1092 {
1093     if (d->mode != QXL_MODE_VGA) {
1094         return;
1095     }
1096     trace_qxl_exit_vga_mode(d->id);
1097     vga_dirty_log_stop(&d->vga);
1098     qxl_destroy_primary(d, QXL_SYNC);
1099 }
1100 
1101 static void qxl_update_irq(PCIQXLDevice *d)
1102 {
1103     uint32_t pending = le32_to_cpu(d->ram->int_pending);
1104     uint32_t mask    = le32_to_cpu(d->ram->int_mask);
1105     int level = !!(pending & mask);
1106     qemu_set_irq(d->pci.irq[0], level);
1107     qxl_ring_set_dirty(d);
1108 }
1109 
1110 static void qxl_check_state(PCIQXLDevice *d)
1111 {
1112     QXLRam *ram = d->ram;
1113     int spice_display_running = qemu_spice_display_is_running(&d->ssd);
1114 
1115     assert(!spice_display_running || SPICE_RING_IS_EMPTY(&ram->cmd_ring));
1116     assert(!spice_display_running || SPICE_RING_IS_EMPTY(&ram->cursor_ring));
1117 }
1118 
1119 static void qxl_reset_state(PCIQXLDevice *d)
1120 {
1121     QXLRom *rom = d->rom;
1122 
1123     qxl_check_state(d);
1124     d->shadow_rom.update_id = cpu_to_le32(0);
1125     *rom = d->shadow_rom;
1126     qxl_rom_set_dirty(d);
1127     init_qxl_ram(d);
1128     d->num_free_res = 0;
1129     d->last_release = NULL;
1130     memset(&d->ssd.dirty, 0, sizeof(d->ssd.dirty));
1131 }
1132 
1133 static void qxl_soft_reset(PCIQXLDevice *d)
1134 {
1135     trace_qxl_soft_reset(d->id);
1136     qxl_check_state(d);
1137     qxl_clear_guest_bug(d);
1138     d->current_async = QXL_UNDEFINED_IO;
1139 
1140     if (d->id == 0) {
1141         qxl_enter_vga_mode(d);
1142     } else {
1143         d->mode = QXL_MODE_UNDEFINED;
1144     }
1145 }
1146 
1147 static void qxl_hard_reset(PCIQXLDevice *d, int loadvm)
1148 {
1149     trace_qxl_hard_reset(d->id, loadvm);
1150 
1151     qxl_spice_reset_cursor(d);
1152     qxl_spice_reset_image_cache(d);
1153     qxl_reset_surfaces(d);
1154     qxl_reset_memslots(d);
1155 
1156     /* pre loadvm reset must not touch QXLRam.  This lives in
1157      * device memory, is migrated together with RAM and thus
1158      * already loaded at this point */
1159     if (!loadvm) {
1160         qxl_reset_state(d);
1161     }
1162     qemu_spice_create_host_memslot(&d->ssd);
1163     qxl_soft_reset(d);
1164 }
1165 
1166 static void qxl_reset_handler(DeviceState *dev)
1167 {
1168     PCIQXLDevice *d = DO_UPCAST(PCIQXLDevice, pci.qdev, dev);
1169 
1170     qxl_hard_reset(d, 0);
1171 }
1172 
1173 static void qxl_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
1174 {
1175     VGACommonState *vga = opaque;
1176     PCIQXLDevice *qxl = container_of(vga, PCIQXLDevice, vga);
1177 
1178     trace_qxl_io_write_vga(qxl->id, qxl_mode_to_string(qxl->mode), addr, val);
1179     if (qxl->mode != QXL_MODE_VGA) {
1180         qxl_destroy_primary(qxl, QXL_SYNC);
1181         qxl_soft_reset(qxl);
1182     }
1183     vga_ioport_write(opaque, addr, val);
1184 }
1185 
1186 static const MemoryRegionPortio qxl_vga_portio_list[] = {
1187     { 0x04,  2, 1, .read  = vga_ioport_read,
1188                    .write = qxl_vga_ioport_write }, /* 3b4 */
1189     { 0x0a,  1, 1, .read  = vga_ioport_read,
1190                    .write = qxl_vga_ioport_write }, /* 3ba */
1191     { 0x10, 16, 1, .read  = vga_ioport_read,
1192                    .write = qxl_vga_ioport_write }, /* 3c0 */
1193     { 0x24,  2, 1, .read  = vga_ioport_read,
1194                    .write = qxl_vga_ioport_write }, /* 3d4 */
1195     { 0x2a,  1, 1, .read  = vga_ioport_read,
1196                    .write = qxl_vga_ioport_write }, /* 3da */
1197     PORTIO_END_OF_LIST(),
1198 };
1199 
1200 static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
1201                            qxl_async_io async)
1202 {
1203     static const int regions[] = {
1204         QXL_RAM_RANGE_INDEX,
1205         QXL_VRAM_RANGE_INDEX,
1206         QXL_VRAM64_RANGE_INDEX,
1207     };
1208     uint64_t guest_start;
1209     uint64_t guest_end;
1210     int pci_region;
1211     pcibus_t pci_start;
1212     pcibus_t pci_end;
1213     intptr_t virt_start;
1214     QXLDevMemSlot memslot;
1215     int i;
1216 
1217     guest_start = le64_to_cpu(d->guest_slots[slot_id].slot.mem_start);
1218     guest_end   = le64_to_cpu(d->guest_slots[slot_id].slot.mem_end);
1219 
1220     trace_qxl_memslot_add_guest(d->id, slot_id, guest_start, guest_end);
1221 
1222     if (slot_id >= NUM_MEMSLOTS) {
1223         qxl_set_guest_bug(d, "%s: slot_id >= NUM_MEMSLOTS %d >= %d", __func__,
1224                       slot_id, NUM_MEMSLOTS);
1225         return 1;
1226     }
1227     if (guest_start > guest_end) {
1228         qxl_set_guest_bug(d, "%s: guest_start > guest_end 0x%" PRIx64
1229                          " > 0x%" PRIx64, __func__, guest_start, guest_end);
1230         return 1;
1231     }
1232 
1233     for (i = 0; i < ARRAY_SIZE(regions); i++) {
1234         pci_region = regions[i];
1235         pci_start = d->pci.io_regions[pci_region].addr;
1236         pci_end = pci_start + d->pci.io_regions[pci_region].size;
1237         /* mapped? */
1238         if (pci_start == -1) {
1239             continue;
1240         }
1241         /* start address in range ? */
1242         if (guest_start < pci_start || guest_start > pci_end) {
1243             continue;
1244         }
1245         /* end address in range ? */
1246         if (guest_end > pci_end) {
1247             continue;
1248         }
1249         /* passed */
1250         break;
1251     }
1252     if (i == ARRAY_SIZE(regions)) {
1253         qxl_set_guest_bug(d, "%s: finished loop without match", __func__);
1254         return 1;
1255     }
1256 
1257     switch (pci_region) {
1258     case QXL_RAM_RANGE_INDEX:
1259         virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vga.vram);
1260         break;
1261     case QXL_VRAM_RANGE_INDEX:
1262     case 4 /* vram 64bit */:
1263         virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vram_bar);
1264         break;
1265     default:
1266         /* should not happen */
1267         qxl_set_guest_bug(d, "%s: pci_region = %d", __func__, pci_region);
1268         return 1;
1269     }
1270 
1271     memslot.slot_id = slot_id;
1272     memslot.slot_group_id = MEMSLOT_GROUP_GUEST; /* guest group */
1273     memslot.virt_start = virt_start + (guest_start - pci_start);
1274     memslot.virt_end   = virt_start + (guest_end   - pci_start);
1275     memslot.addr_delta = memslot.virt_start - delta;
1276     memslot.generation = d->rom->slot_generation = 0;
1277     qxl_rom_set_dirty(d);
1278 
1279     qemu_spice_add_memslot(&d->ssd, &memslot, async);
1280     d->guest_slots[slot_id].ptr = (void*)memslot.virt_start;
1281     d->guest_slots[slot_id].size = memslot.virt_end - memslot.virt_start;
1282     d->guest_slots[slot_id].delta = delta;
1283     d->guest_slots[slot_id].active = 1;
1284     return 0;
1285 }
1286 
1287 static void qxl_del_memslot(PCIQXLDevice *d, uint32_t slot_id)
1288 {
1289     qemu_spice_del_memslot(&d->ssd, MEMSLOT_GROUP_HOST, slot_id);
1290     d->guest_slots[slot_id].active = 0;
1291 }
1292 
1293 static void qxl_reset_memslots(PCIQXLDevice *d)
1294 {
1295     qxl_spice_reset_memslots(d);
1296     memset(&d->guest_slots, 0, sizeof(d->guest_slots));
1297 }
1298 
1299 static void qxl_reset_surfaces(PCIQXLDevice *d)
1300 {
1301     trace_qxl_reset_surfaces(d->id);
1302     d->mode = QXL_MODE_UNDEFINED;
1303     qxl_spice_destroy_surfaces(d, QXL_SYNC);
1304 }
1305 
1306 /* can be also called from spice server thread context */
1307 void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id)
1308 {
1309     uint64_t phys   = le64_to_cpu(pqxl);
1310     uint32_t slot   = (phys >> (64 -  8)) & 0xff;
1311     uint64_t offset = phys & 0xffffffffffff;
1312 
1313     switch (group_id) {
1314     case MEMSLOT_GROUP_HOST:
1315         return (void *)(intptr_t)offset;
1316     case MEMSLOT_GROUP_GUEST:
1317         if (slot >= NUM_MEMSLOTS) {
1318             qxl_set_guest_bug(qxl, "slot too large %d >= %d", slot,
1319                               NUM_MEMSLOTS);
1320             return NULL;
1321         }
1322         if (!qxl->guest_slots[slot].active) {
1323             qxl_set_guest_bug(qxl, "inactive slot %d\n", slot);
1324             return NULL;
1325         }
1326         if (offset < qxl->guest_slots[slot].delta) {
1327             qxl_set_guest_bug(qxl,
1328                           "slot %d offset %"PRIu64" < delta %"PRIu64"\n",
1329                           slot, offset, qxl->guest_slots[slot].delta);
1330             return NULL;
1331         }
1332         offset -= qxl->guest_slots[slot].delta;
1333         if (offset > qxl->guest_slots[slot].size) {
1334             qxl_set_guest_bug(qxl,
1335                           "slot %d offset %"PRIu64" > size %"PRIu64"\n",
1336                           slot, offset, qxl->guest_slots[slot].size);
1337             return NULL;
1338         }
1339         return qxl->guest_slots[slot].ptr + offset;
1340     }
1341     return NULL;
1342 }
1343 
1344 static void qxl_create_guest_primary_complete(PCIQXLDevice *qxl)
1345 {
1346     /* for local rendering */
1347     qxl_render_resize(qxl);
1348 }
1349 
1350 static void qxl_create_guest_primary(PCIQXLDevice *qxl, int loadvm,
1351                                      qxl_async_io async)
1352 {
1353     QXLDevSurfaceCreate surface;
1354     QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
1355     int size;
1356     int requested_height = le32_to_cpu(sc->height);
1357     int requested_stride = le32_to_cpu(sc->stride);
1358 
1359     size = abs(requested_stride) * requested_height;
1360     if (size > qxl->vgamem_size) {
1361         qxl_set_guest_bug(qxl, "%s: requested primary larger then framebuffer"
1362                                " size", __func__);
1363         return;
1364     }
1365 
1366     if (qxl->mode == QXL_MODE_NATIVE) {
1367         qxl_set_guest_bug(qxl, "%s: nop since already in QXL_MODE_NATIVE",
1368                       __func__);
1369     }
1370     qxl_exit_vga_mode(qxl);
1371 
1372     surface.format     = le32_to_cpu(sc->format);
1373     surface.height     = le32_to_cpu(sc->height);
1374     surface.mem        = le64_to_cpu(sc->mem);
1375     surface.position   = le32_to_cpu(sc->position);
1376     surface.stride     = le32_to_cpu(sc->stride);
1377     surface.width      = le32_to_cpu(sc->width);
1378     surface.type       = le32_to_cpu(sc->type);
1379     surface.flags      = le32_to_cpu(sc->flags);
1380     trace_qxl_create_guest_primary(qxl->id, sc->width, sc->height, sc->mem,
1381                                    sc->format, sc->position);
1382     trace_qxl_create_guest_primary_rest(qxl->id, sc->stride, sc->type,
1383                                         sc->flags);
1384 
1385     if ((surface.stride & 0x3) != 0) {
1386         qxl_set_guest_bug(qxl, "primary surface stride = %d %% 4 != 0",
1387                           surface.stride);
1388         return;
1389     }
1390 
1391     surface.mouse_mode = true;
1392     surface.group_id   = MEMSLOT_GROUP_GUEST;
1393     if (loadvm) {
1394         surface.flags |= QXL_SURF_FLAG_KEEP_DATA;
1395     }
1396 
1397     qxl->mode = QXL_MODE_NATIVE;
1398     qxl->cmdflags = 0;
1399     qemu_spice_create_primary_surface(&qxl->ssd, 0, &surface, async);
1400 
1401     if (async == QXL_SYNC) {
1402         qxl_create_guest_primary_complete(qxl);
1403     }
1404 }
1405 
1406 /* return 1 if surface destoy was initiated (in QXL_ASYNC case) or
1407  * done (in QXL_SYNC case), 0 otherwise. */
1408 static int qxl_destroy_primary(PCIQXLDevice *d, qxl_async_io async)
1409 {
1410     if (d->mode == QXL_MODE_UNDEFINED) {
1411         return 0;
1412     }
1413     trace_qxl_destroy_primary(d->id);
1414     d->mode = QXL_MODE_UNDEFINED;
1415     qemu_spice_destroy_primary_surface(&d->ssd, 0, async);
1416     qxl_spice_reset_cursor(d);
1417     return 1;
1418 }
1419 
1420 static void qxl_set_mode(PCIQXLDevice *d, int modenr, int loadvm)
1421 {
1422     pcibus_t start = d->pci.io_regions[QXL_RAM_RANGE_INDEX].addr;
1423     pcibus_t end   = d->pci.io_regions[QXL_RAM_RANGE_INDEX].size + start;
1424     QXLMode *mode = d->modes->modes + modenr;
1425     uint64_t devmem = d->pci.io_regions[QXL_RAM_RANGE_INDEX].addr;
1426     QXLMemSlot slot = {
1427         .mem_start = start,
1428         .mem_end = end
1429     };
1430     QXLSurfaceCreate surface = {
1431         .width      = mode->x_res,
1432         .height     = mode->y_res,
1433         .stride     = -mode->x_res * 4,
1434         .format     = SPICE_SURFACE_FMT_32_xRGB,
1435         .flags      = loadvm ? QXL_SURF_FLAG_KEEP_DATA : 0,
1436         .mouse_mode = true,
1437         .mem        = devmem + d->shadow_rom.draw_area_offset,
1438     };
1439 
1440     trace_qxl_set_mode(d->id, modenr, mode->x_res, mode->y_res, mode->bits,
1441                        devmem);
1442     if (!loadvm) {
1443         qxl_hard_reset(d, 0);
1444     }
1445 
1446     d->guest_slots[0].slot = slot;
1447     assert(qxl_add_memslot(d, 0, devmem, QXL_SYNC) == 0);
1448 
1449     d->guest_primary.surface = surface;
1450     qxl_create_guest_primary(d, 0, QXL_SYNC);
1451 
1452     d->mode = QXL_MODE_COMPAT;
1453     d->cmdflags = QXL_COMMAND_FLAG_COMPAT;
1454     if (mode->bits == 16) {
1455         d->cmdflags |= QXL_COMMAND_FLAG_COMPAT_16BPP;
1456     }
1457     d->shadow_rom.mode = cpu_to_le32(modenr);
1458     d->rom->mode = cpu_to_le32(modenr);
1459     qxl_rom_set_dirty(d);
1460 }
1461 
1462 static void ioport_write(void *opaque, hwaddr addr,
1463                          uint64_t val, unsigned size)
1464 {
1465     PCIQXLDevice *d = opaque;
1466     uint32_t io_port = addr;
1467     qxl_async_io async = QXL_SYNC;
1468     uint32_t orig_io_port = io_port;
1469 
1470     if (d->guest_bug && io_port != QXL_IO_RESET) {
1471         return;
1472     }
1473 
1474     if (d->revision <= QXL_REVISION_STABLE_V10 &&
1475         io_port > QXL_IO_FLUSH_RELEASE) {
1476         qxl_set_guest_bug(d, "unsupported io %d for revision %d\n",
1477             io_port, d->revision);
1478         return;
1479     }
1480 
1481     switch (io_port) {
1482     case QXL_IO_RESET:
1483     case QXL_IO_SET_MODE:
1484     case QXL_IO_MEMSLOT_ADD:
1485     case QXL_IO_MEMSLOT_DEL:
1486     case QXL_IO_CREATE_PRIMARY:
1487     case QXL_IO_UPDATE_IRQ:
1488     case QXL_IO_LOG:
1489     case QXL_IO_MEMSLOT_ADD_ASYNC:
1490     case QXL_IO_CREATE_PRIMARY_ASYNC:
1491         break;
1492     default:
1493         if (d->mode != QXL_MODE_VGA) {
1494             break;
1495         }
1496         trace_qxl_io_unexpected_vga_mode(d->id,
1497             addr, val, io_port_to_string(io_port));
1498         /* be nice to buggy guest drivers */
1499         if (io_port >= QXL_IO_UPDATE_AREA_ASYNC &&
1500             io_port < QXL_IO_RANGE_SIZE) {
1501             qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
1502         }
1503         return;
1504     }
1505 
1506     /* we change the io_port to avoid ifdeffery in the main switch */
1507     orig_io_port = io_port;
1508     switch (io_port) {
1509     case QXL_IO_UPDATE_AREA_ASYNC:
1510         io_port = QXL_IO_UPDATE_AREA;
1511         goto async_common;
1512     case QXL_IO_MEMSLOT_ADD_ASYNC:
1513         io_port = QXL_IO_MEMSLOT_ADD;
1514         goto async_common;
1515     case QXL_IO_CREATE_PRIMARY_ASYNC:
1516         io_port = QXL_IO_CREATE_PRIMARY;
1517         goto async_common;
1518     case QXL_IO_DESTROY_PRIMARY_ASYNC:
1519         io_port = QXL_IO_DESTROY_PRIMARY;
1520         goto async_common;
1521     case QXL_IO_DESTROY_SURFACE_ASYNC:
1522         io_port = QXL_IO_DESTROY_SURFACE_WAIT;
1523         goto async_common;
1524     case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
1525         io_port = QXL_IO_DESTROY_ALL_SURFACES;
1526         goto async_common;
1527     case QXL_IO_FLUSH_SURFACES_ASYNC:
1528     case QXL_IO_MONITORS_CONFIG_ASYNC:
1529 async_common:
1530         async = QXL_ASYNC;
1531         qemu_mutex_lock(&d->async_lock);
1532         if (d->current_async != QXL_UNDEFINED_IO) {
1533             qxl_set_guest_bug(d, "%d async started before last (%d) complete",
1534                 io_port, d->current_async);
1535             qemu_mutex_unlock(&d->async_lock);
1536             return;
1537         }
1538         d->current_async = orig_io_port;
1539         qemu_mutex_unlock(&d->async_lock);
1540         break;
1541     default:
1542         break;
1543     }
1544     trace_qxl_io_write(d->id, qxl_mode_to_string(d->mode), addr, val, size,
1545                        async);
1546 
1547     switch (io_port) {
1548     case QXL_IO_UPDATE_AREA:
1549     {
1550         QXLCookie *cookie = NULL;
1551         QXLRect update = d->ram->update_area;
1552 
1553         if (d->ram->update_surface > d->ssd.num_surfaces) {
1554             qxl_set_guest_bug(d, "QXL_IO_UPDATE_AREA: invalid surface id %d\n",
1555                               d->ram->update_surface);
1556             break;
1557         }
1558         if (update.left >= update.right || update.top >= update.bottom ||
1559             update.left < 0 || update.top < 0) {
1560             qxl_set_guest_bug(d,
1561                     "QXL_IO_UPDATE_AREA: invalid area (%ux%u)x(%ux%u)\n",
1562                     update.left, update.top, update.right, update.bottom);
1563             break;
1564         }
1565         if (async == QXL_ASYNC) {
1566             cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
1567                                     QXL_IO_UPDATE_AREA_ASYNC);
1568             cookie->u.area = update;
1569         }
1570         qxl_spice_update_area(d, d->ram->update_surface,
1571                               cookie ? &cookie->u.area : &update,
1572                               NULL, 0, 0, async, cookie);
1573         break;
1574     }
1575     case QXL_IO_NOTIFY_CMD:
1576         qemu_spice_wakeup(&d->ssd);
1577         break;
1578     case QXL_IO_NOTIFY_CURSOR:
1579         qemu_spice_wakeup(&d->ssd);
1580         break;
1581     case QXL_IO_UPDATE_IRQ:
1582         qxl_update_irq(d);
1583         break;
1584     case QXL_IO_NOTIFY_OOM:
1585         if (!SPICE_RING_IS_EMPTY(&d->ram->release_ring)) {
1586             break;
1587         }
1588         d->oom_running = 1;
1589         qxl_spice_oom(d);
1590         d->oom_running = 0;
1591         break;
1592     case QXL_IO_SET_MODE:
1593         qxl_set_mode(d, val, 0);
1594         break;
1595     case QXL_IO_LOG:
1596         trace_qxl_io_log(d->id, d->ram->log_buf);
1597         if (d->guestdebug) {
1598             fprintf(stderr, "qxl/guest-%d: %" PRId64 ": %s", d->id,
1599                     qemu_get_clock_ns(vm_clock), d->ram->log_buf);
1600         }
1601         break;
1602     case QXL_IO_RESET:
1603         qxl_hard_reset(d, 0);
1604         break;
1605     case QXL_IO_MEMSLOT_ADD:
1606         if (val >= NUM_MEMSLOTS) {
1607             qxl_set_guest_bug(d, "QXL_IO_MEMSLOT_ADD: val out of range");
1608             break;
1609         }
1610         if (d->guest_slots[val].active) {
1611             qxl_set_guest_bug(d,
1612                         "QXL_IO_MEMSLOT_ADD: memory slot already active");
1613             break;
1614         }
1615         d->guest_slots[val].slot = d->ram->mem_slot;
1616         qxl_add_memslot(d, val, 0, async);
1617         break;
1618     case QXL_IO_MEMSLOT_DEL:
1619         if (val >= NUM_MEMSLOTS) {
1620             qxl_set_guest_bug(d, "QXL_IO_MEMSLOT_DEL: val out of range");
1621             break;
1622         }
1623         qxl_del_memslot(d, val);
1624         break;
1625     case QXL_IO_CREATE_PRIMARY:
1626         if (val != 0) {
1627             qxl_set_guest_bug(d, "QXL_IO_CREATE_PRIMARY (async=%d): val != 0",
1628                           async);
1629             goto cancel_async;
1630         }
1631         d->guest_primary.surface = d->ram->create_surface;
1632         qxl_create_guest_primary(d, 0, async);
1633         break;
1634     case QXL_IO_DESTROY_PRIMARY:
1635         if (val != 0) {
1636             qxl_set_guest_bug(d, "QXL_IO_DESTROY_PRIMARY (async=%d): val != 0",
1637                           async);
1638             goto cancel_async;
1639         }
1640         if (!qxl_destroy_primary(d, async)) {
1641             trace_qxl_io_destroy_primary_ignored(d->id,
1642                                                  qxl_mode_to_string(d->mode));
1643             goto cancel_async;
1644         }
1645         break;
1646     case QXL_IO_DESTROY_SURFACE_WAIT:
1647         if (val >= d->ssd.num_surfaces) {
1648             qxl_set_guest_bug(d, "QXL_IO_DESTROY_SURFACE (async=%d):"
1649                              "%" PRIu64 " >= NUM_SURFACES", async, val);
1650             goto cancel_async;
1651         }
1652         qxl_spice_destroy_surface_wait(d, val, async);
1653         break;
1654     case QXL_IO_FLUSH_RELEASE: {
1655         QXLReleaseRing *ring = &d->ram->release_ring;
1656         if (ring->prod - ring->cons + 1 == ring->num_items) {
1657             fprintf(stderr,
1658                 "ERROR: no flush, full release ring [p%d,%dc]\n",
1659                 ring->prod, ring->cons);
1660         }
1661         qxl_push_free_res(d, 1 /* flush */);
1662         break;
1663     }
1664     case QXL_IO_FLUSH_SURFACES_ASYNC:
1665         qxl_spice_flush_surfaces_async(d);
1666         break;
1667     case QXL_IO_DESTROY_ALL_SURFACES:
1668         d->mode = QXL_MODE_UNDEFINED;
1669         qxl_spice_destroy_surfaces(d, async);
1670         break;
1671     case QXL_IO_MONITORS_CONFIG_ASYNC:
1672         qxl_spice_monitors_config_async(d, 0);
1673         break;
1674     default:
1675         qxl_set_guest_bug(d, "%s: unexpected ioport=0x%x\n", __func__, io_port);
1676     }
1677     return;
1678 cancel_async:
1679     if (async) {
1680         qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
1681         qemu_mutex_lock(&d->async_lock);
1682         d->current_async = QXL_UNDEFINED_IO;
1683         qemu_mutex_unlock(&d->async_lock);
1684     }
1685 }
1686 
1687 static uint64_t ioport_read(void *opaque, hwaddr addr,
1688                             unsigned size)
1689 {
1690     PCIQXLDevice *qxl = opaque;
1691 
1692     trace_qxl_io_read_unexpected(qxl->id);
1693     return 0xff;
1694 }
1695 
1696 static const MemoryRegionOps qxl_io_ops = {
1697     .read = ioport_read,
1698     .write = ioport_write,
1699     .valid = {
1700         .min_access_size = 1,
1701         .max_access_size = 1,
1702     },
1703 };
1704 
1705 static void pipe_read(void *opaque)
1706 {
1707     PCIQXLDevice *d = opaque;
1708     char dummy;
1709     int len;
1710 
1711     do {
1712         len = read(d->pipe[0], &dummy, sizeof(dummy));
1713     } while (len == sizeof(dummy));
1714     qxl_update_irq(d);
1715 }
1716 
1717 static void qxl_send_events(PCIQXLDevice *d, uint32_t events)
1718 {
1719     uint32_t old_pending;
1720     uint32_t le_events = cpu_to_le32(events);
1721 
1722     trace_qxl_send_events(d->id, events);
1723     if (!qemu_spice_display_is_running(&d->ssd)) {
1724         /* spice-server tracks guest running state and should not do this */
1725         fprintf(stderr, "%s: spice-server bug: guest stopped, ignoring\n",
1726                 __func__);
1727         trace_qxl_send_events_vm_stopped(d->id, events);
1728         return;
1729     }
1730     old_pending = atomic_fetch_or(&d->ram->int_pending, le_events);
1731     if ((old_pending & le_events) == le_events) {
1732         return;
1733     }
1734     if (qemu_thread_is_self(&d->main)) {
1735         qxl_update_irq(d);
1736     } else {
1737         if (write(d->pipe[1], d, 1) != 1) {
1738             dprint(d, 1, "%s: write to pipe failed\n", __func__);
1739         }
1740     }
1741 }
1742 
1743 static void init_pipe_signaling(PCIQXLDevice *d)
1744 {
1745     if (pipe(d->pipe) < 0) {
1746         fprintf(stderr, "%s:%s: qxl pipe creation failed\n",
1747                 __FILE__, __func__);
1748         exit(1);
1749     }
1750     fcntl(d->pipe[0], F_SETFL, O_NONBLOCK);
1751     fcntl(d->pipe[1], F_SETFL, O_NONBLOCK);
1752     fcntl(d->pipe[0], F_SETOWN, getpid());
1753 
1754     qemu_thread_get_self(&d->main);
1755     qemu_set_fd_handler(d->pipe[0], pipe_read, NULL, d);
1756 }
1757 
1758 /* graphics console */
1759 
1760 static void qxl_hw_update(void *opaque)
1761 {
1762     PCIQXLDevice *qxl = opaque;
1763     VGACommonState *vga = &qxl->vga;
1764 
1765     switch (qxl->mode) {
1766     case QXL_MODE_VGA:
1767         vga->hw_ops->gfx_update(vga);
1768         break;
1769     case QXL_MODE_COMPAT:
1770     case QXL_MODE_NATIVE:
1771         qxl_render_update(qxl);
1772         break;
1773     default:
1774         break;
1775     }
1776 }
1777 
1778 static void qxl_hw_invalidate(void *opaque)
1779 {
1780     PCIQXLDevice *qxl = opaque;
1781     VGACommonState *vga = &qxl->vga;
1782 
1783     if (qxl->mode == QXL_MODE_VGA) {
1784         vga->hw_ops->invalidate(vga);
1785         return;
1786     }
1787 }
1788 
1789 static void qxl_hw_text_update(void *opaque, console_ch_t *chardata)
1790 {
1791     PCIQXLDevice *qxl = opaque;
1792     VGACommonState *vga = &qxl->vga;
1793 
1794     if (qxl->mode == QXL_MODE_VGA) {
1795         vga->hw_ops->text_update(vga, chardata);
1796         return;
1797     }
1798 }
1799 
1800 static void qxl_dirty_surfaces(PCIQXLDevice *qxl)
1801 {
1802     uintptr_t vram_start;
1803     int i;
1804 
1805     if (qxl->mode != QXL_MODE_NATIVE && qxl->mode != QXL_MODE_COMPAT) {
1806         return;
1807     }
1808 
1809     /* dirty the primary surface */
1810     qxl_set_dirty(&qxl->vga.vram, qxl->shadow_rom.draw_area_offset,
1811                   qxl->shadow_rom.surface0_area_size);
1812 
1813     vram_start = (uintptr_t)memory_region_get_ram_ptr(&qxl->vram_bar);
1814 
1815     /* dirty the off-screen surfaces */
1816     for (i = 0; i < qxl->ssd.num_surfaces; i++) {
1817         QXLSurfaceCmd *cmd;
1818         intptr_t surface_offset;
1819         int surface_size;
1820 
1821         if (qxl->guest_surfaces.cmds[i] == 0) {
1822             continue;
1823         }
1824 
1825         cmd = qxl_phys2virt(qxl, qxl->guest_surfaces.cmds[i],
1826                             MEMSLOT_GROUP_GUEST);
1827         assert(cmd);
1828         assert(cmd->type == QXL_SURFACE_CMD_CREATE);
1829         surface_offset = (intptr_t)qxl_phys2virt(qxl,
1830                                                  cmd->u.surface_create.data,
1831                                                  MEMSLOT_GROUP_GUEST);
1832         assert(surface_offset);
1833         surface_offset -= vram_start;
1834         surface_size = cmd->u.surface_create.height *
1835                        abs(cmd->u.surface_create.stride);
1836         trace_qxl_surfaces_dirty(qxl->id, i, (int)surface_offset, surface_size);
1837         qxl_set_dirty(&qxl->vram_bar, surface_offset, surface_size);
1838     }
1839 }
1840 
1841 static void qxl_vm_change_state_handler(void *opaque, int running,
1842                                         RunState state)
1843 {
1844     PCIQXLDevice *qxl = opaque;
1845 
1846     if (running) {
1847         /*
1848          * if qxl_send_events was called from spice server context before
1849          * migration ended, qxl_update_irq for these events might not have been
1850          * called
1851          */
1852          qxl_update_irq(qxl);
1853     } else {
1854         /* make sure surfaces are saved before migration */
1855         qxl_dirty_surfaces(qxl);
1856     }
1857 }
1858 
1859 /* display change listener */
1860 
1861 static void display_update(DisplayChangeListener *dcl,
1862                            int x, int y, int w, int h)
1863 {
1864     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1865 
1866     if (qxl->mode == QXL_MODE_VGA) {
1867         qemu_spice_display_update(&qxl->ssd, x, y, w, h);
1868     }
1869 }
1870 
1871 static void display_switch(DisplayChangeListener *dcl,
1872                            struct DisplaySurface *surface)
1873 {
1874     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1875 
1876     qxl->ssd.ds = surface;
1877     if (qxl->mode == QXL_MODE_VGA) {
1878         qemu_spice_display_switch(&qxl->ssd, surface);
1879     }
1880 }
1881 
1882 static void display_refresh(DisplayChangeListener *dcl)
1883 {
1884     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1885 
1886     if (qxl->mode == QXL_MODE_VGA) {
1887         qemu_spice_display_refresh(&qxl->ssd);
1888     } else {
1889         qemu_mutex_lock(&qxl->ssd.lock);
1890         qemu_spice_cursor_refresh_unlocked(&qxl->ssd);
1891         qemu_mutex_unlock(&qxl->ssd.lock);
1892     }
1893 }
1894 
1895 static DisplayChangeListenerOps display_listener_ops = {
1896     .dpy_name        = "spice/qxl",
1897     .dpy_gfx_update  = display_update,
1898     .dpy_gfx_switch  = display_switch,
1899     .dpy_refresh     = display_refresh,
1900 };
1901 
1902 static void qxl_init_ramsize(PCIQXLDevice *qxl)
1903 {
1904     /* vga mode framebuffer / primary surface (bar 0, first part) */
1905     if (qxl->vgamem_size_mb < 8) {
1906         qxl->vgamem_size_mb = 8;
1907     }
1908     qxl->vgamem_size = qxl->vgamem_size_mb * 1024 * 1024;
1909 
1910     /* vga ram (bar 0, total) */
1911     if (qxl->ram_size_mb != -1) {
1912         qxl->vga.vram_size = qxl->ram_size_mb * 1024 * 1024;
1913     }
1914     if (qxl->vga.vram_size < qxl->vgamem_size * 2) {
1915         qxl->vga.vram_size = qxl->vgamem_size * 2;
1916     }
1917 
1918     /* vram32 (surfaces, 32bit, bar 1) */
1919     if (qxl->vram32_size_mb != -1) {
1920         qxl->vram32_size = qxl->vram32_size_mb * 1024 * 1024;
1921     }
1922     if (qxl->vram32_size < 4096) {
1923         qxl->vram32_size = 4096;
1924     }
1925 
1926     /* vram (surfaces, 64bit, bar 4+5) */
1927     if (qxl->vram_size_mb != -1) {
1928         qxl->vram_size = qxl->vram_size_mb * 1024 * 1024;
1929     }
1930     if (qxl->vram_size < qxl->vram32_size) {
1931         qxl->vram_size = qxl->vram32_size;
1932     }
1933 
1934     if (qxl->revision == 1) {
1935         qxl->vram32_size = 4096;
1936         qxl->vram_size = 4096;
1937     }
1938     qxl->vgamem_size = msb_mask(qxl->vgamem_size * 2 - 1);
1939     qxl->vga.vram_size = msb_mask(qxl->vga.vram_size * 2 - 1);
1940     qxl->vram32_size = msb_mask(qxl->vram32_size * 2 - 1);
1941     qxl->vram_size = msb_mask(qxl->vram_size * 2 - 1);
1942 }
1943 
1944 static int qxl_init_common(PCIQXLDevice *qxl)
1945 {
1946     uint8_t* config = qxl->pci.config;
1947     uint32_t pci_device_rev;
1948     uint32_t io_size;
1949 
1950     qxl->mode = QXL_MODE_UNDEFINED;
1951     qxl->generation = 1;
1952     qxl->num_memslots = NUM_MEMSLOTS;
1953     qemu_mutex_init(&qxl->track_lock);
1954     qemu_mutex_init(&qxl->async_lock);
1955     qxl->current_async = QXL_UNDEFINED_IO;
1956     qxl->guest_bug = 0;
1957 
1958     switch (qxl->revision) {
1959     case 1: /* spice 0.4 -- qxl-1 */
1960         pci_device_rev = QXL_REVISION_STABLE_V04;
1961         io_size = 8;
1962         break;
1963     case 2: /* spice 0.6 -- qxl-2 */
1964         pci_device_rev = QXL_REVISION_STABLE_V06;
1965         io_size = 16;
1966         break;
1967     case 3: /* qxl-3 */
1968         pci_device_rev = QXL_REVISION_STABLE_V10;
1969         io_size = 32; /* PCI region size must be pow2 */
1970         break;
1971     case 4: /* qxl-4 */
1972         pci_device_rev = QXL_REVISION_STABLE_V12;
1973         io_size = msb_mask(QXL_IO_RANGE_SIZE * 2 - 1);
1974         break;
1975     default:
1976         error_report("Invalid revision %d for qxl device (max %d)",
1977                      qxl->revision, QXL_DEFAULT_REVISION);
1978         return -1;
1979     }
1980 
1981     pci_set_byte(&config[PCI_REVISION_ID], pci_device_rev);
1982     pci_set_byte(&config[PCI_INTERRUPT_PIN], 1);
1983 
1984     qxl->rom_size = qxl_rom_size();
1985     memory_region_init_ram(&qxl->rom_bar, OBJECT(qxl), "qxl.vrom",
1986                            qxl->rom_size);
1987     vmstate_register_ram(&qxl->rom_bar, &qxl->pci.qdev);
1988     init_qxl_rom(qxl);
1989     init_qxl_ram(qxl);
1990 
1991     qxl->guest_surfaces.cmds = g_new0(QXLPHYSICAL, qxl->ssd.num_surfaces);
1992     memory_region_init_ram(&qxl->vram_bar, OBJECT(qxl), "qxl.vram",
1993                            qxl->vram_size);
1994     vmstate_register_ram(&qxl->vram_bar, &qxl->pci.qdev);
1995     memory_region_init_alias(&qxl->vram32_bar, OBJECT(qxl), "qxl.vram32",
1996                              &qxl->vram_bar, 0, qxl->vram32_size);
1997 
1998     memory_region_init_io(&qxl->io_bar, OBJECT(qxl), &qxl_io_ops, qxl,
1999                           "qxl-ioports", io_size);
2000     if (qxl->id == 0) {
2001         vga_dirty_log_start(&qxl->vga);
2002     }
2003     memory_region_set_flush_coalesced(&qxl->io_bar);
2004 
2005 
2006     pci_register_bar(&qxl->pci, QXL_IO_RANGE_INDEX,
2007                      PCI_BASE_ADDRESS_SPACE_IO, &qxl->io_bar);
2008 
2009     pci_register_bar(&qxl->pci, QXL_ROM_RANGE_INDEX,
2010                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->rom_bar);
2011 
2012     pci_register_bar(&qxl->pci, QXL_RAM_RANGE_INDEX,
2013                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vga.vram);
2014 
2015     pci_register_bar(&qxl->pci, QXL_VRAM_RANGE_INDEX,
2016                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vram32_bar);
2017 
2018     if (qxl->vram32_size < qxl->vram_size) {
2019         /*
2020          * Make the 64bit vram bar show up only in case it is
2021          * configured to be larger than the 32bit vram bar.
2022          */
2023         pci_register_bar(&qxl->pci, QXL_VRAM64_RANGE_INDEX,
2024                          PCI_BASE_ADDRESS_SPACE_MEMORY |
2025                          PCI_BASE_ADDRESS_MEM_TYPE_64 |
2026                          PCI_BASE_ADDRESS_MEM_PREFETCH,
2027                          &qxl->vram_bar);
2028     }
2029 
2030     /* print pci bar details */
2031     dprint(qxl, 1, "ram/%s: %d MB [region 0]\n",
2032            qxl->id == 0 ? "pri" : "sec",
2033            qxl->vga.vram_size / (1024*1024));
2034     dprint(qxl, 1, "vram/32: %d MB [region 1]\n",
2035            qxl->vram32_size / (1024*1024));
2036     dprint(qxl, 1, "vram/64: %d MB %s\n",
2037            qxl->vram_size / (1024*1024),
2038            qxl->vram32_size < qxl->vram_size ? "[region 4]" : "[unmapped]");
2039 
2040     qxl->ssd.qxl.base.sif = &qxl_interface.base;
2041     qxl->ssd.qxl.id = qxl->id;
2042     if (qemu_spice_add_interface(&qxl->ssd.qxl.base) != 0) {
2043         error_report("qxl interface %d.%d not supported by spice-server",
2044                      SPICE_INTERFACE_QXL_MAJOR, SPICE_INTERFACE_QXL_MINOR);
2045         return -1;
2046     }
2047     qemu_add_vm_change_state_handler(qxl_vm_change_state_handler, qxl);
2048 
2049     init_pipe_signaling(qxl);
2050     qxl_reset_state(qxl);
2051 
2052     qxl->update_area_bh = qemu_bh_new(qxl_render_update_area_bh, qxl);
2053 
2054     return 0;
2055 }
2056 
2057 static const GraphicHwOps qxl_ops = {
2058     .invalidate  = qxl_hw_invalidate,
2059     .gfx_update  = qxl_hw_update,
2060     .text_update = qxl_hw_text_update,
2061 };
2062 
2063 static int qxl_init_primary(PCIDevice *dev)
2064 {
2065     PCIQXLDevice *qxl = DO_UPCAST(PCIQXLDevice, pci, dev);
2066     VGACommonState *vga = &qxl->vga;
2067     PortioList *qxl_vga_port_list = g_new(PortioList, 1);
2068     int rc;
2069 
2070     qxl->id = 0;
2071     qxl_init_ramsize(qxl);
2072     vga->vram_size_mb = qxl->vga.vram_size >> 20;
2073     vga_common_init(vga, OBJECT(dev));
2074     vga_init(vga, OBJECT(dev),
2075              pci_address_space(dev), pci_address_space_io(dev), false);
2076     portio_list_init(qxl_vga_port_list, OBJECT(dev), qxl_vga_portio_list,
2077                      vga, "vga");
2078     portio_list_add(qxl_vga_port_list, pci_address_space_io(dev), 0x3b0);
2079 
2080     vga->con = graphic_console_init(DEVICE(dev), &qxl_ops, qxl);
2081     qemu_spice_display_init_common(&qxl->ssd);
2082 
2083     rc = qxl_init_common(qxl);
2084     if (rc != 0) {
2085         return rc;
2086     }
2087 
2088     qxl->ssd.dcl.ops = &display_listener_ops;
2089     qxl->ssd.dcl.con = vga->con;
2090     register_displaychangelistener(&qxl->ssd.dcl);
2091     return rc;
2092 }
2093 
2094 static int qxl_init_secondary(PCIDevice *dev)
2095 {
2096     static int device_id = 1;
2097     PCIQXLDevice *qxl = DO_UPCAST(PCIQXLDevice, pci, dev);
2098 
2099     qxl->id = device_id++;
2100     qxl_init_ramsize(qxl);
2101     memory_region_init_ram(&qxl->vga.vram, OBJECT(dev), "qxl.vgavram",
2102                            qxl->vga.vram_size);
2103     vmstate_register_ram(&qxl->vga.vram, &qxl->pci.qdev);
2104     qxl->vga.vram_ptr = memory_region_get_ram_ptr(&qxl->vga.vram);
2105     qxl->vga.con = graphic_console_init(DEVICE(dev), &qxl_ops, qxl);
2106 
2107     return qxl_init_common(qxl);
2108 }
2109 
2110 static void qxl_pre_save(void *opaque)
2111 {
2112     PCIQXLDevice* d = opaque;
2113     uint8_t *ram_start = d->vga.vram_ptr;
2114 
2115     trace_qxl_pre_save(d->id);
2116     if (d->last_release == NULL) {
2117         d->last_release_offset = 0;
2118     } else {
2119         d->last_release_offset = (uint8_t *)d->last_release - ram_start;
2120     }
2121     assert(d->last_release_offset < d->vga.vram_size);
2122 }
2123 
2124 static int qxl_pre_load(void *opaque)
2125 {
2126     PCIQXLDevice* d = opaque;
2127 
2128     trace_qxl_pre_load(d->id);
2129     qxl_hard_reset(d, 1);
2130     qxl_exit_vga_mode(d);
2131     return 0;
2132 }
2133 
2134 static void qxl_create_memslots(PCIQXLDevice *d)
2135 {
2136     int i;
2137 
2138     for (i = 0; i < NUM_MEMSLOTS; i++) {
2139         if (!d->guest_slots[i].active) {
2140             continue;
2141         }
2142         qxl_add_memslot(d, i, 0, QXL_SYNC);
2143     }
2144 }
2145 
2146 static int qxl_post_load(void *opaque, int version)
2147 {
2148     PCIQXLDevice* d = opaque;
2149     uint8_t *ram_start = d->vga.vram_ptr;
2150     QXLCommandExt *cmds;
2151     int in, out, newmode;
2152 
2153     assert(d->last_release_offset < d->vga.vram_size);
2154     if (d->last_release_offset == 0) {
2155         d->last_release = NULL;
2156     } else {
2157         d->last_release = (QXLReleaseInfo *)(ram_start + d->last_release_offset);
2158     }
2159 
2160     d->modes = (QXLModes*)((uint8_t*)d->rom + d->rom->modes_offset);
2161 
2162     trace_qxl_post_load(d->id, qxl_mode_to_string(d->mode));
2163     newmode = d->mode;
2164     d->mode = QXL_MODE_UNDEFINED;
2165 
2166     switch (newmode) {
2167     case QXL_MODE_UNDEFINED:
2168         qxl_create_memslots(d);
2169         break;
2170     case QXL_MODE_VGA:
2171         qxl_create_memslots(d);
2172         qxl_enter_vga_mode(d);
2173         break;
2174     case QXL_MODE_NATIVE:
2175         qxl_create_memslots(d);
2176         qxl_create_guest_primary(d, 1, QXL_SYNC);
2177 
2178         /* replay surface-create and cursor-set commands */
2179         cmds = g_malloc0(sizeof(QXLCommandExt) * (d->ssd.num_surfaces + 1));
2180         for (in = 0, out = 0; in < d->ssd.num_surfaces; in++) {
2181             if (d->guest_surfaces.cmds[in] == 0) {
2182                 continue;
2183             }
2184             cmds[out].cmd.data = d->guest_surfaces.cmds[in];
2185             cmds[out].cmd.type = QXL_CMD_SURFACE;
2186             cmds[out].group_id = MEMSLOT_GROUP_GUEST;
2187             out++;
2188         }
2189         if (d->guest_cursor) {
2190             cmds[out].cmd.data = d->guest_cursor;
2191             cmds[out].cmd.type = QXL_CMD_CURSOR;
2192             cmds[out].group_id = MEMSLOT_GROUP_GUEST;
2193             out++;
2194         }
2195         qxl_spice_loadvm_commands(d, cmds, out);
2196         g_free(cmds);
2197         if (d->guest_monitors_config) {
2198             qxl_spice_monitors_config_async(d, 1);
2199         }
2200         break;
2201     case QXL_MODE_COMPAT:
2202         /* note: no need to call qxl_create_memslots, qxl_set_mode
2203          * creates the mem slot. */
2204         qxl_set_mode(d, d->shadow_rom.mode, 1);
2205         break;
2206     }
2207     return 0;
2208 }
2209 
2210 #define QXL_SAVE_VERSION 21
2211 
2212 static bool qxl_monitors_config_needed(void *opaque)
2213 {
2214     PCIQXLDevice *qxl = opaque;
2215 
2216     return qxl->guest_monitors_config != 0;
2217 }
2218 
2219 
2220 static VMStateDescription qxl_memslot = {
2221     .name               = "qxl-memslot",
2222     .version_id         = QXL_SAVE_VERSION,
2223     .minimum_version_id = QXL_SAVE_VERSION,
2224     .fields = (VMStateField[]) {
2225         VMSTATE_UINT64(slot.mem_start, struct guest_slots),
2226         VMSTATE_UINT64(slot.mem_end,   struct guest_slots),
2227         VMSTATE_UINT32(active,         struct guest_slots),
2228         VMSTATE_END_OF_LIST()
2229     }
2230 };
2231 
2232 static VMStateDescription qxl_surface = {
2233     .name               = "qxl-surface",
2234     .version_id         = QXL_SAVE_VERSION,
2235     .minimum_version_id = QXL_SAVE_VERSION,
2236     .fields = (VMStateField[]) {
2237         VMSTATE_UINT32(width,      QXLSurfaceCreate),
2238         VMSTATE_UINT32(height,     QXLSurfaceCreate),
2239         VMSTATE_INT32(stride,      QXLSurfaceCreate),
2240         VMSTATE_UINT32(format,     QXLSurfaceCreate),
2241         VMSTATE_UINT32(position,   QXLSurfaceCreate),
2242         VMSTATE_UINT32(mouse_mode, QXLSurfaceCreate),
2243         VMSTATE_UINT32(flags,      QXLSurfaceCreate),
2244         VMSTATE_UINT32(type,       QXLSurfaceCreate),
2245         VMSTATE_UINT64(mem,        QXLSurfaceCreate),
2246         VMSTATE_END_OF_LIST()
2247     }
2248 };
2249 
2250 static VMStateDescription qxl_vmstate_monitors_config = {
2251     .name               = "qxl/monitors-config",
2252     .version_id         = 1,
2253     .minimum_version_id = 1,
2254     .fields = (VMStateField[]) {
2255         VMSTATE_UINT64(guest_monitors_config, PCIQXLDevice),
2256         VMSTATE_END_OF_LIST()
2257     },
2258 };
2259 
2260 static VMStateDescription qxl_vmstate = {
2261     .name               = "qxl",
2262     .version_id         = QXL_SAVE_VERSION,
2263     .minimum_version_id = QXL_SAVE_VERSION,
2264     .pre_save           = qxl_pre_save,
2265     .pre_load           = qxl_pre_load,
2266     .post_load          = qxl_post_load,
2267     .fields = (VMStateField[]) {
2268         VMSTATE_PCI_DEVICE(pci, PCIQXLDevice),
2269         VMSTATE_STRUCT(vga, PCIQXLDevice, 0, vmstate_vga_common, VGACommonState),
2270         VMSTATE_UINT32(shadow_rom.mode, PCIQXLDevice),
2271         VMSTATE_UINT32(num_free_res, PCIQXLDevice),
2272         VMSTATE_UINT32(last_release_offset, PCIQXLDevice),
2273         VMSTATE_UINT32(mode, PCIQXLDevice),
2274         VMSTATE_UINT32(ssd.unique, PCIQXLDevice),
2275         VMSTATE_INT32_EQUAL(num_memslots, PCIQXLDevice),
2276         VMSTATE_STRUCT_ARRAY(guest_slots, PCIQXLDevice, NUM_MEMSLOTS, 0,
2277                              qxl_memslot, struct guest_slots),
2278         VMSTATE_STRUCT(guest_primary.surface, PCIQXLDevice, 0,
2279                        qxl_surface, QXLSurfaceCreate),
2280         VMSTATE_INT32_EQUAL(ssd.num_surfaces, PCIQXLDevice),
2281         VMSTATE_VARRAY_INT32(guest_surfaces.cmds, PCIQXLDevice,
2282                              ssd.num_surfaces, 0,
2283                              vmstate_info_uint64, uint64_t),
2284         VMSTATE_UINT64(guest_cursor, PCIQXLDevice),
2285         VMSTATE_END_OF_LIST()
2286     },
2287     .subsections = (VMStateSubsection[]) {
2288         {
2289             .vmsd = &qxl_vmstate_monitors_config,
2290             .needed = qxl_monitors_config_needed,
2291         }, {
2292             /* empty */
2293         }
2294     }
2295 };
2296 
2297 static Property qxl_properties[] = {
2298         DEFINE_PROP_UINT32("ram_size", PCIQXLDevice, vga.vram_size,
2299                            64 * 1024 * 1024),
2300         DEFINE_PROP_UINT32("vram_size", PCIQXLDevice, vram32_size,
2301                            64 * 1024 * 1024),
2302         DEFINE_PROP_UINT32("revision", PCIQXLDevice, revision,
2303                            QXL_DEFAULT_REVISION),
2304         DEFINE_PROP_UINT32("debug", PCIQXLDevice, debug, 0),
2305         DEFINE_PROP_UINT32("guestdebug", PCIQXLDevice, guestdebug, 0),
2306         DEFINE_PROP_UINT32("cmdlog", PCIQXLDevice, cmdlog, 0),
2307         DEFINE_PROP_UINT32("ram_size_mb",  PCIQXLDevice, ram_size_mb, -1),
2308         DEFINE_PROP_UINT32("vram_size_mb", PCIQXLDevice, vram32_size_mb, -1),
2309         DEFINE_PROP_UINT32("vram64_size_mb", PCIQXLDevice, vram_size_mb, -1),
2310         DEFINE_PROP_UINT32("vgamem_mb", PCIQXLDevice, vgamem_size_mb, 16),
2311         DEFINE_PROP_INT32("surfaces", PCIQXLDevice, ssd.num_surfaces, 1024),
2312         DEFINE_PROP_END_OF_LIST(),
2313 };
2314 
2315 static void qxl_primary_class_init(ObjectClass *klass, void *data)
2316 {
2317     DeviceClass *dc = DEVICE_CLASS(klass);
2318     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2319 
2320     k->no_hotplug = 1;
2321     k->init = qxl_init_primary;
2322     k->romfile = "vgabios-qxl.bin";
2323     k->vendor_id = REDHAT_PCI_VENDOR_ID;
2324     k->device_id = QXL_DEVICE_ID_STABLE;
2325     k->class_id = PCI_CLASS_DISPLAY_VGA;
2326     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
2327     dc->desc = "Spice QXL GPU (primary, vga compatible)";
2328     dc->reset = qxl_reset_handler;
2329     dc->vmsd = &qxl_vmstate;
2330     dc->props = qxl_properties;
2331 }
2332 
2333 static const TypeInfo qxl_primary_info = {
2334     .name          = "qxl-vga",
2335     .parent        = TYPE_PCI_DEVICE,
2336     .instance_size = sizeof(PCIQXLDevice),
2337     .class_init    = qxl_primary_class_init,
2338 };
2339 
2340 static void qxl_secondary_class_init(ObjectClass *klass, void *data)
2341 {
2342     DeviceClass *dc = DEVICE_CLASS(klass);
2343     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2344 
2345     k->init = qxl_init_secondary;
2346     k->vendor_id = REDHAT_PCI_VENDOR_ID;
2347     k->device_id = QXL_DEVICE_ID_STABLE;
2348     k->class_id = PCI_CLASS_DISPLAY_OTHER;
2349     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
2350     dc->desc = "Spice QXL GPU (secondary)";
2351     dc->reset = qxl_reset_handler;
2352     dc->vmsd = &qxl_vmstate;
2353     dc->props = qxl_properties;
2354 }
2355 
2356 static const TypeInfo qxl_secondary_info = {
2357     .name          = "qxl",
2358     .parent        = TYPE_PCI_DEVICE,
2359     .instance_size = sizeof(PCIQXLDevice),
2360     .class_init    = qxl_secondary_class_init,
2361 };
2362 
2363 static void qxl_register_types(void)
2364 {
2365     type_register_static(&qxl_primary_info);
2366     type_register_static(&qxl_secondary_info);
2367 }
2368 
2369 type_init(qxl_register_types)
2370