xref: /openbmc/qemu/hw/display/qxl.c (revision 01c22f2c)
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         qemu_spice_destroy_update(&qxl->ssd, (void *)(intptr_t)ext.info->id);
714         return;
715     }
716 
717     /*
718      * ext->info points into guest-visible memory
719      * pci bar 0, $command.release_info
720      */
721     ring = &qxl->ram->release_ring;
722     SPICE_RING_PROD_ITEM(qxl, ring, item);
723     if (!item) {
724         return;
725     }
726     if (*item == 0) {
727         /* stick head into the ring */
728         id = ext.info->id;
729         ext.info->next = 0;
730         qxl_ram_set_dirty(qxl, &ext.info->next);
731         *item = id;
732         qxl_ring_set_dirty(qxl);
733     } else {
734         /* append item to the list */
735         qxl->last_release->next = ext.info->id;
736         qxl_ram_set_dirty(qxl, &qxl->last_release->next);
737         ext.info->next = 0;
738         qxl_ram_set_dirty(qxl, &ext.info->next);
739     }
740     qxl->last_release = ext.info;
741     qxl->num_free_res++;
742     trace_qxl_ring_res_put(qxl->id, qxl->num_free_res);
743     qxl_push_free_res(qxl, 0);
744 }
745 
746 /* called from spice server thread context only */
747 static int interface_get_cursor_command(QXLInstance *sin, struct QXLCommandExt *ext)
748 {
749     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
750     QXLCursorRing *ring;
751     QXLCommand *cmd;
752     int notify;
753 
754     trace_qxl_ring_cursor_check(qxl->id, qxl_mode_to_string(qxl->mode));
755 
756     switch (qxl->mode) {
757     case QXL_MODE_COMPAT:
758     case QXL_MODE_NATIVE:
759     case QXL_MODE_UNDEFINED:
760         ring = &qxl->ram->cursor_ring;
761         if (SPICE_RING_IS_EMPTY(ring)) {
762             return false;
763         }
764         SPICE_RING_CONS_ITEM(qxl, ring, cmd);
765         if (!cmd) {
766             return false;
767         }
768         ext->cmd      = *cmd;
769         ext->group_id = MEMSLOT_GROUP_GUEST;
770         ext->flags    = qxl->cmdflags;
771         SPICE_RING_POP(ring, notify);
772         qxl_ring_set_dirty(qxl);
773         if (notify) {
774             qxl_send_events(qxl, QXL_INTERRUPT_CURSOR);
775         }
776         qxl->guest_primary.commands++;
777         qxl_track_command(qxl, ext);
778         qxl_log_command(qxl, "csr", ext);
779         if (qxl->id == 0) {
780             qxl_render_cursor(qxl, ext);
781         }
782         trace_qxl_ring_cursor_get(qxl->id, qxl_mode_to_string(qxl->mode));
783         return true;
784     default:
785         return false;
786     }
787 }
788 
789 /* called from spice server thread context only */
790 static int interface_req_cursor_notification(QXLInstance *sin)
791 {
792     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
793     int wait = 1;
794 
795     trace_qxl_ring_cursor_req_notification(qxl->id);
796     switch (qxl->mode) {
797     case QXL_MODE_COMPAT:
798     case QXL_MODE_NATIVE:
799     case QXL_MODE_UNDEFINED:
800         SPICE_RING_CONS_WAIT(&qxl->ram->cursor_ring, wait);
801         qxl_ring_set_dirty(qxl);
802         break;
803     default:
804         /* nothing */
805         break;
806     }
807     return wait;
808 }
809 
810 /* called from spice server thread context */
811 static void interface_notify_update(QXLInstance *sin, uint32_t update_id)
812 {
813     /*
814      * Called by spice-server as a result of a QXL_CMD_UPDATE which is not in
815      * use by xf86-video-qxl and is defined out in the qxl windows driver.
816      * Probably was at some earlier version that is prior to git start (2009),
817      * and is still guest trigerrable.
818      */
819     fprintf(stderr, "%s: deprecated\n", __func__);
820 }
821 
822 /* called from spice server thread context only */
823 static int interface_flush_resources(QXLInstance *sin)
824 {
825     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
826     int ret;
827 
828     ret = qxl->num_free_res;
829     if (ret) {
830         qxl_push_free_res(qxl, 1);
831     }
832     return ret;
833 }
834 
835 static void qxl_create_guest_primary_complete(PCIQXLDevice *d);
836 
837 /* called from spice server thread context only */
838 static void interface_async_complete_io(PCIQXLDevice *qxl, QXLCookie *cookie)
839 {
840     uint32_t current_async;
841 
842     qemu_mutex_lock(&qxl->async_lock);
843     current_async = qxl->current_async;
844     qxl->current_async = QXL_UNDEFINED_IO;
845     qemu_mutex_unlock(&qxl->async_lock);
846 
847     trace_qxl_interface_async_complete_io(qxl->id, current_async, cookie);
848     if (!cookie) {
849         fprintf(stderr, "qxl: %s: error, cookie is NULL\n", __func__);
850         return;
851     }
852     if (cookie && current_async != cookie->io) {
853         fprintf(stderr,
854                 "qxl: %s: error: current_async = %d != %"
855                 PRId64 " = cookie->io\n", __func__, current_async, cookie->io);
856     }
857     switch (current_async) {
858     case QXL_IO_MEMSLOT_ADD_ASYNC:
859     case QXL_IO_DESTROY_PRIMARY_ASYNC:
860     case QXL_IO_UPDATE_AREA_ASYNC:
861     case QXL_IO_FLUSH_SURFACES_ASYNC:
862     case QXL_IO_MONITORS_CONFIG_ASYNC:
863         break;
864     case QXL_IO_CREATE_PRIMARY_ASYNC:
865         qxl_create_guest_primary_complete(qxl);
866         break;
867     case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
868         qxl_spice_destroy_surfaces_complete(qxl);
869         break;
870     case QXL_IO_DESTROY_SURFACE_ASYNC:
871         qxl_spice_destroy_surface_wait_complete(qxl, cookie->u.surface_id);
872         break;
873     default:
874         fprintf(stderr, "qxl: %s: unexpected current_async %d\n", __func__,
875                 current_async);
876     }
877     qxl_send_events(qxl, QXL_INTERRUPT_IO_CMD);
878 }
879 
880 /* called from spice server thread context only */
881 static void interface_update_area_complete(QXLInstance *sin,
882         uint32_t surface_id,
883         QXLRect *dirty, uint32_t num_updated_rects)
884 {
885     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
886     int i;
887     int qxl_i;
888 
889     qemu_mutex_lock(&qxl->ssd.lock);
890     if (surface_id != 0 || !qxl->render_update_cookie_num) {
891         qemu_mutex_unlock(&qxl->ssd.lock);
892         return;
893     }
894     trace_qxl_interface_update_area_complete(qxl->id, surface_id, dirty->left,
895             dirty->right, dirty->top, dirty->bottom);
896     trace_qxl_interface_update_area_complete_rest(qxl->id, num_updated_rects);
897     if (qxl->num_dirty_rects + num_updated_rects > QXL_NUM_DIRTY_RECTS) {
898         /*
899          * overflow - treat this as a full update. Not expected to be common.
900          */
901         trace_qxl_interface_update_area_complete_overflow(qxl->id,
902                                                           QXL_NUM_DIRTY_RECTS);
903         qxl->guest_primary.resized = 1;
904     }
905     if (qxl->guest_primary.resized) {
906         /*
907          * Don't bother copying or scheduling the bh since we will flip
908          * the whole area anyway on completion of the update_area async call
909          */
910         qemu_mutex_unlock(&qxl->ssd.lock);
911         return;
912     }
913     qxl_i = qxl->num_dirty_rects;
914     for (i = 0; i < num_updated_rects; i++) {
915         qxl->dirty[qxl_i++] = dirty[i];
916     }
917     qxl->num_dirty_rects += num_updated_rects;
918     trace_qxl_interface_update_area_complete_schedule_bh(qxl->id,
919                                                          qxl->num_dirty_rects);
920     qemu_bh_schedule(qxl->update_area_bh);
921     qemu_mutex_unlock(&qxl->ssd.lock);
922 }
923 
924 /* called from spice server thread context only */
925 static void interface_async_complete(QXLInstance *sin, uint64_t cookie_token)
926 {
927     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
928     QXLCookie *cookie = (QXLCookie *)(uintptr_t)cookie_token;
929 
930     switch (cookie->type) {
931     case QXL_COOKIE_TYPE_IO:
932         interface_async_complete_io(qxl, cookie);
933         g_free(cookie);
934         break;
935     case QXL_COOKIE_TYPE_RENDER_UPDATE_AREA:
936         qxl_render_update_area_done(qxl, cookie);
937         break;
938     case QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG:
939         break;
940     default:
941         fprintf(stderr, "qxl: %s: unexpected cookie type %d\n",
942                 __func__, cookie->type);
943         g_free(cookie);
944     }
945 }
946 
947 /* called from spice server thread context only */
948 static void interface_set_client_capabilities(QXLInstance *sin,
949                                               uint8_t client_present,
950                                               uint8_t caps[58])
951 {
952     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
953 
954     if (qxl->revision < 4) {
955         trace_qxl_set_client_capabilities_unsupported_by_revision(qxl->id,
956                                                               qxl->revision);
957         return;
958     }
959 
960     if (runstate_check(RUN_STATE_INMIGRATE) ||
961         runstate_check(RUN_STATE_POSTMIGRATE)) {
962         return;
963     }
964 
965     qxl->shadow_rom.client_present = client_present;
966     memcpy(qxl->shadow_rom.client_capabilities, caps,
967            sizeof(qxl->shadow_rom.client_capabilities));
968     qxl->rom->client_present = client_present;
969     memcpy(qxl->rom->client_capabilities, caps,
970            sizeof(qxl->rom->client_capabilities));
971     qxl_rom_set_dirty(qxl);
972 
973     qxl_send_events(qxl, QXL_INTERRUPT_CLIENT);
974 }
975 
976 static uint32_t qxl_crc32(const uint8_t *p, unsigned len)
977 {
978     /*
979      * zlib xors the seed with 0xffffffff, and xors the result
980      * again with 0xffffffff; Both are not done with linux's crc32,
981      * which we want to be compatible with, so undo that.
982      */
983     return crc32(0xffffffff, p, len) ^ 0xffffffff;
984 }
985 
986 /* called from main context only */
987 static int interface_client_monitors_config(QXLInstance *sin,
988                                         VDAgentMonitorsConfig *monitors_config)
989 {
990     PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
991     QXLRom *rom = memory_region_get_ram_ptr(&qxl->rom_bar);
992     int i;
993 
994     if (qxl->revision < 4) {
995         trace_qxl_client_monitors_config_unsupported_by_device(qxl->id,
996                                                                qxl->revision);
997         return 0;
998     }
999     /*
1000      * Older windows drivers set int_mask to 0 when their ISR is called,
1001      * then later set it to ~0. So it doesn't relate to the actual interrupts
1002      * handled. However, they are old, so clearly they don't support this
1003      * interrupt
1004      */
1005     if (qxl->ram->int_mask == 0 || qxl->ram->int_mask == ~0 ||
1006         !(qxl->ram->int_mask & QXL_INTERRUPT_CLIENT_MONITORS_CONFIG)) {
1007         trace_qxl_client_monitors_config_unsupported_by_guest(qxl->id,
1008                                                             qxl->ram->int_mask,
1009                                                             monitors_config);
1010         return 0;
1011     }
1012     if (!monitors_config) {
1013         return 1;
1014     }
1015     memset(&rom->client_monitors_config, 0,
1016            sizeof(rom->client_monitors_config));
1017     rom->client_monitors_config.count = monitors_config->num_of_monitors;
1018     /* monitors_config->flags ignored */
1019     if (rom->client_monitors_config.count >=
1020             ARRAY_SIZE(rom->client_monitors_config.heads)) {
1021         trace_qxl_client_monitors_config_capped(qxl->id,
1022                                 monitors_config->num_of_monitors,
1023                                 ARRAY_SIZE(rom->client_monitors_config.heads));
1024         rom->client_monitors_config.count =
1025             ARRAY_SIZE(rom->client_monitors_config.heads);
1026     }
1027     for (i = 0 ; i < rom->client_monitors_config.count ; ++i) {
1028         VDAgentMonConfig *monitor = &monitors_config->monitors[i];
1029         QXLURect *rect = &rom->client_monitors_config.heads[i];
1030         /* monitor->depth ignored */
1031         rect->left = monitor->x;
1032         rect->top = monitor->y;
1033         rect->right = monitor->x + monitor->width;
1034         rect->bottom = monitor->y + monitor->height;
1035     }
1036     rom->client_monitors_config_crc = qxl_crc32(
1037             (const uint8_t *)&rom->client_monitors_config,
1038             sizeof(rom->client_monitors_config));
1039     trace_qxl_client_monitors_config_crc(qxl->id,
1040             sizeof(rom->client_monitors_config),
1041             rom->client_monitors_config_crc);
1042 
1043     trace_qxl_interrupt_client_monitors_config(qxl->id,
1044                         rom->client_monitors_config.count,
1045                         rom->client_monitors_config.heads);
1046     qxl_send_events(qxl, QXL_INTERRUPT_CLIENT_MONITORS_CONFIG);
1047     return 1;
1048 }
1049 
1050 static const QXLInterface qxl_interface = {
1051     .base.type               = SPICE_INTERFACE_QXL,
1052     .base.description        = "qxl gpu",
1053     .base.major_version      = SPICE_INTERFACE_QXL_MAJOR,
1054     .base.minor_version      = SPICE_INTERFACE_QXL_MINOR,
1055 
1056     .attache_worker          = interface_attach_worker,
1057     .set_compression_level   = interface_set_compression_level,
1058     .set_mm_time             = interface_set_mm_time,
1059     .get_init_info           = interface_get_init_info,
1060 
1061     /* the callbacks below are called from spice server thread context */
1062     .get_command             = interface_get_command,
1063     .req_cmd_notification    = interface_req_cmd_notification,
1064     .release_resource        = interface_release_resource,
1065     .get_cursor_command      = interface_get_cursor_command,
1066     .req_cursor_notification = interface_req_cursor_notification,
1067     .notify_update           = interface_notify_update,
1068     .flush_resources         = interface_flush_resources,
1069     .async_complete          = interface_async_complete,
1070     .update_area_complete    = interface_update_area_complete,
1071     .set_client_capabilities = interface_set_client_capabilities,
1072     .client_monitors_config = interface_client_monitors_config,
1073 };
1074 
1075 static void qxl_enter_vga_mode(PCIQXLDevice *d)
1076 {
1077     if (d->mode == QXL_MODE_VGA) {
1078         return;
1079     }
1080     trace_qxl_enter_vga_mode(d->id);
1081 #if SPICE_SERVER_VERSION >= 0x000c03 /* release 0.12.3 */
1082     spice_qxl_driver_unload(&d->ssd.qxl);
1083 #endif
1084     qemu_spice_create_host_primary(&d->ssd);
1085     d->mode = QXL_MODE_VGA;
1086     vga_dirty_log_start(&d->vga);
1087     graphic_hw_update(d->vga.con);
1088 }
1089 
1090 static void qxl_exit_vga_mode(PCIQXLDevice *d)
1091 {
1092     if (d->mode != QXL_MODE_VGA) {
1093         return;
1094     }
1095     trace_qxl_exit_vga_mode(d->id);
1096     vga_dirty_log_stop(&d->vga);
1097     qxl_destroy_primary(d, QXL_SYNC);
1098 }
1099 
1100 static void qxl_update_irq(PCIQXLDevice *d)
1101 {
1102     uint32_t pending = le32_to_cpu(d->ram->int_pending);
1103     uint32_t mask    = le32_to_cpu(d->ram->int_mask);
1104     int level = !!(pending & mask);
1105     pci_set_irq(&d->pci, level);
1106     qxl_ring_set_dirty(d);
1107 }
1108 
1109 static void qxl_check_state(PCIQXLDevice *d)
1110 {
1111     QXLRam *ram = d->ram;
1112     int spice_display_running = qemu_spice_display_is_running(&d->ssd);
1113 
1114     assert(!spice_display_running || SPICE_RING_IS_EMPTY(&ram->cmd_ring));
1115     assert(!spice_display_running || SPICE_RING_IS_EMPTY(&ram->cursor_ring));
1116 }
1117 
1118 static void qxl_reset_state(PCIQXLDevice *d)
1119 {
1120     QXLRom *rom = d->rom;
1121 
1122     qxl_check_state(d);
1123     d->shadow_rom.update_id = cpu_to_le32(0);
1124     *rom = d->shadow_rom;
1125     qxl_rom_set_dirty(d);
1126     init_qxl_ram(d);
1127     d->num_free_res = 0;
1128     d->last_release = NULL;
1129     memset(&d->ssd.dirty, 0, sizeof(d->ssd.dirty));
1130     qxl_update_irq(d);
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     bool startstop = qemu_spice_display_is_running(&d->ssd);
1150 
1151     trace_qxl_hard_reset(d->id, loadvm);
1152 
1153     if (startstop) {
1154         qemu_spice_display_stop();
1155     }
1156 
1157     qxl_spice_reset_cursor(d);
1158     qxl_spice_reset_image_cache(d);
1159     qxl_reset_surfaces(d);
1160     qxl_reset_memslots(d);
1161 
1162     /* pre loadvm reset must not touch QXLRam.  This lives in
1163      * device memory, is migrated together with RAM and thus
1164      * already loaded at this point */
1165     if (!loadvm) {
1166         qxl_reset_state(d);
1167     }
1168     qemu_spice_create_host_memslot(&d->ssd);
1169     qxl_soft_reset(d);
1170 
1171     if (startstop) {
1172         qemu_spice_display_start();
1173     }
1174 }
1175 
1176 static void qxl_reset_handler(DeviceState *dev)
1177 {
1178     PCIQXLDevice *d = DO_UPCAST(PCIQXLDevice, pci.qdev, dev);
1179 
1180     qxl_hard_reset(d, 0);
1181 }
1182 
1183 static void qxl_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
1184 {
1185     VGACommonState *vga = opaque;
1186     PCIQXLDevice *qxl = container_of(vga, PCIQXLDevice, vga);
1187 
1188     trace_qxl_io_write_vga(qxl->id, qxl_mode_to_string(qxl->mode), addr, val);
1189     if (qxl->mode != QXL_MODE_VGA) {
1190         qxl_destroy_primary(qxl, QXL_SYNC);
1191         qxl_soft_reset(qxl);
1192     }
1193     vga_ioport_write(opaque, addr, val);
1194 }
1195 
1196 static const MemoryRegionPortio qxl_vga_portio_list[] = {
1197     { 0x04,  2, 1, .read  = vga_ioport_read,
1198                    .write = qxl_vga_ioport_write }, /* 3b4 */
1199     { 0x0a,  1, 1, .read  = vga_ioport_read,
1200                    .write = qxl_vga_ioport_write }, /* 3ba */
1201     { 0x10, 16, 1, .read  = vga_ioport_read,
1202                    .write = qxl_vga_ioport_write }, /* 3c0 */
1203     { 0x24,  2, 1, .read  = vga_ioport_read,
1204                    .write = qxl_vga_ioport_write }, /* 3d4 */
1205     { 0x2a,  1, 1, .read  = vga_ioport_read,
1206                    .write = qxl_vga_ioport_write }, /* 3da */
1207     PORTIO_END_OF_LIST(),
1208 };
1209 
1210 static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
1211                            qxl_async_io async)
1212 {
1213     static const int regions[] = {
1214         QXL_RAM_RANGE_INDEX,
1215         QXL_VRAM_RANGE_INDEX,
1216         QXL_VRAM64_RANGE_INDEX,
1217     };
1218     uint64_t guest_start;
1219     uint64_t guest_end;
1220     int pci_region;
1221     pcibus_t pci_start;
1222     pcibus_t pci_end;
1223     intptr_t virt_start;
1224     QXLDevMemSlot memslot;
1225     int i;
1226 
1227     guest_start = le64_to_cpu(d->guest_slots[slot_id].slot.mem_start);
1228     guest_end   = le64_to_cpu(d->guest_slots[slot_id].slot.mem_end);
1229 
1230     trace_qxl_memslot_add_guest(d->id, slot_id, guest_start, guest_end);
1231 
1232     if (slot_id >= NUM_MEMSLOTS) {
1233         qxl_set_guest_bug(d, "%s: slot_id >= NUM_MEMSLOTS %d >= %d", __func__,
1234                       slot_id, NUM_MEMSLOTS);
1235         return 1;
1236     }
1237     if (guest_start > guest_end) {
1238         qxl_set_guest_bug(d, "%s: guest_start > guest_end 0x%" PRIx64
1239                          " > 0x%" PRIx64, __func__, guest_start, guest_end);
1240         return 1;
1241     }
1242 
1243     for (i = 0; i < ARRAY_SIZE(regions); i++) {
1244         pci_region = regions[i];
1245         pci_start = d->pci.io_regions[pci_region].addr;
1246         pci_end = pci_start + d->pci.io_regions[pci_region].size;
1247         /* mapped? */
1248         if (pci_start == -1) {
1249             continue;
1250         }
1251         /* start address in range ? */
1252         if (guest_start < pci_start || guest_start > pci_end) {
1253             continue;
1254         }
1255         /* end address in range ? */
1256         if (guest_end > pci_end) {
1257             continue;
1258         }
1259         /* passed */
1260         break;
1261     }
1262     if (i == ARRAY_SIZE(regions)) {
1263         qxl_set_guest_bug(d, "%s: finished loop without match", __func__);
1264         return 1;
1265     }
1266 
1267     switch (pci_region) {
1268     case QXL_RAM_RANGE_INDEX:
1269         virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vga.vram);
1270         break;
1271     case QXL_VRAM_RANGE_INDEX:
1272     case 4 /* vram 64bit */:
1273         virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vram_bar);
1274         break;
1275     default:
1276         /* should not happen */
1277         qxl_set_guest_bug(d, "%s: pci_region = %d", __func__, pci_region);
1278         return 1;
1279     }
1280 
1281     memslot.slot_id = slot_id;
1282     memslot.slot_group_id = MEMSLOT_GROUP_GUEST; /* guest group */
1283     memslot.virt_start = virt_start + (guest_start - pci_start);
1284     memslot.virt_end   = virt_start + (guest_end   - pci_start);
1285     memslot.addr_delta = memslot.virt_start - delta;
1286     memslot.generation = d->rom->slot_generation = 0;
1287     qxl_rom_set_dirty(d);
1288 
1289     qemu_spice_add_memslot(&d->ssd, &memslot, async);
1290     d->guest_slots[slot_id].ptr = (void*)memslot.virt_start;
1291     d->guest_slots[slot_id].size = memslot.virt_end - memslot.virt_start;
1292     d->guest_slots[slot_id].delta = delta;
1293     d->guest_slots[slot_id].active = 1;
1294     return 0;
1295 }
1296 
1297 static void qxl_del_memslot(PCIQXLDevice *d, uint32_t slot_id)
1298 {
1299     qemu_spice_del_memslot(&d->ssd, MEMSLOT_GROUP_HOST, slot_id);
1300     d->guest_slots[slot_id].active = 0;
1301 }
1302 
1303 static void qxl_reset_memslots(PCIQXLDevice *d)
1304 {
1305     qxl_spice_reset_memslots(d);
1306     memset(&d->guest_slots, 0, sizeof(d->guest_slots));
1307 }
1308 
1309 static void qxl_reset_surfaces(PCIQXLDevice *d)
1310 {
1311     trace_qxl_reset_surfaces(d->id);
1312     d->mode = QXL_MODE_UNDEFINED;
1313     qxl_spice_destroy_surfaces(d, QXL_SYNC);
1314 }
1315 
1316 /* can be also called from spice server thread context */
1317 void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id)
1318 {
1319     uint64_t phys   = le64_to_cpu(pqxl);
1320     uint32_t slot   = (phys >> (64 -  8)) & 0xff;
1321     uint64_t offset = phys & 0xffffffffffff;
1322 
1323     switch (group_id) {
1324     case MEMSLOT_GROUP_HOST:
1325         return (void *)(intptr_t)offset;
1326     case MEMSLOT_GROUP_GUEST:
1327         if (slot >= NUM_MEMSLOTS) {
1328             qxl_set_guest_bug(qxl, "slot too large %d >= %d", slot,
1329                               NUM_MEMSLOTS);
1330             return NULL;
1331         }
1332         if (!qxl->guest_slots[slot].active) {
1333             qxl_set_guest_bug(qxl, "inactive slot %d\n", slot);
1334             return NULL;
1335         }
1336         if (offset < qxl->guest_slots[slot].delta) {
1337             qxl_set_guest_bug(qxl,
1338                           "slot %d offset %"PRIu64" < delta %"PRIu64"\n",
1339                           slot, offset, qxl->guest_slots[slot].delta);
1340             return NULL;
1341         }
1342         offset -= qxl->guest_slots[slot].delta;
1343         if (offset > qxl->guest_slots[slot].size) {
1344             qxl_set_guest_bug(qxl,
1345                           "slot %d offset %"PRIu64" > size %"PRIu64"\n",
1346                           slot, offset, qxl->guest_slots[slot].size);
1347             return NULL;
1348         }
1349         return qxl->guest_slots[slot].ptr + offset;
1350     }
1351     return NULL;
1352 }
1353 
1354 static void qxl_create_guest_primary_complete(PCIQXLDevice *qxl)
1355 {
1356     /* for local rendering */
1357     qxl_render_resize(qxl);
1358 }
1359 
1360 static void qxl_create_guest_primary(PCIQXLDevice *qxl, int loadvm,
1361                                      qxl_async_io async)
1362 {
1363     QXLDevSurfaceCreate surface;
1364     QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
1365     uint32_t requested_height = le32_to_cpu(sc->height);
1366     int requested_stride = le32_to_cpu(sc->stride);
1367 
1368     if (requested_stride == INT32_MIN ||
1369         abs(requested_stride) * (uint64_t)requested_height
1370                                         > qxl->vgamem_size) {
1371         qxl_set_guest_bug(qxl, "%s: requested primary larger than framebuffer"
1372                                " stride %d x height %" PRIu32 " > %" PRIu32,
1373                                __func__, requested_stride, requested_height,
1374                                qxl->vgamem_size);
1375         return;
1376     }
1377 
1378     if (qxl->mode == QXL_MODE_NATIVE) {
1379         qxl_set_guest_bug(qxl, "%s: nop since already in QXL_MODE_NATIVE",
1380                       __func__);
1381     }
1382     qxl_exit_vga_mode(qxl);
1383 
1384     surface.format     = le32_to_cpu(sc->format);
1385     surface.height     = le32_to_cpu(sc->height);
1386     surface.mem        = le64_to_cpu(sc->mem);
1387     surface.position   = le32_to_cpu(sc->position);
1388     surface.stride     = le32_to_cpu(sc->stride);
1389     surface.width      = le32_to_cpu(sc->width);
1390     surface.type       = le32_to_cpu(sc->type);
1391     surface.flags      = le32_to_cpu(sc->flags);
1392     trace_qxl_create_guest_primary(qxl->id, sc->width, sc->height, sc->mem,
1393                                    sc->format, sc->position);
1394     trace_qxl_create_guest_primary_rest(qxl->id, sc->stride, sc->type,
1395                                         sc->flags);
1396 
1397     if ((surface.stride & 0x3) != 0) {
1398         qxl_set_guest_bug(qxl, "primary surface stride = %d %% 4 != 0",
1399                           surface.stride);
1400         return;
1401     }
1402 
1403     surface.mouse_mode = true;
1404     surface.group_id   = MEMSLOT_GROUP_GUEST;
1405     if (loadvm) {
1406         surface.flags |= QXL_SURF_FLAG_KEEP_DATA;
1407     }
1408 
1409     qxl->mode = QXL_MODE_NATIVE;
1410     qxl->cmdflags = 0;
1411     qemu_spice_create_primary_surface(&qxl->ssd, 0, &surface, async);
1412 
1413     if (async == QXL_SYNC) {
1414         qxl_create_guest_primary_complete(qxl);
1415     }
1416 }
1417 
1418 /* return 1 if surface destoy was initiated (in QXL_ASYNC case) or
1419  * done (in QXL_SYNC case), 0 otherwise. */
1420 static int qxl_destroy_primary(PCIQXLDevice *d, qxl_async_io async)
1421 {
1422     if (d->mode == QXL_MODE_UNDEFINED) {
1423         return 0;
1424     }
1425     trace_qxl_destroy_primary(d->id);
1426     d->mode = QXL_MODE_UNDEFINED;
1427     qemu_spice_destroy_primary_surface(&d->ssd, 0, async);
1428     qxl_spice_reset_cursor(d);
1429     return 1;
1430 }
1431 
1432 static void qxl_set_mode(PCIQXLDevice *d, unsigned int modenr, int loadvm)
1433 {
1434     pcibus_t start = d->pci.io_regions[QXL_RAM_RANGE_INDEX].addr;
1435     pcibus_t end   = d->pci.io_regions[QXL_RAM_RANGE_INDEX].size + start;
1436     QXLMode *mode = d->modes->modes + modenr;
1437     uint64_t devmem = d->pci.io_regions[QXL_RAM_RANGE_INDEX].addr;
1438     QXLMemSlot slot = {
1439         .mem_start = start,
1440         .mem_end = end
1441     };
1442 
1443     if (modenr >= d->modes->n_modes) {
1444         qxl_set_guest_bug(d, "mode number out of range");
1445         return;
1446     }
1447 
1448     QXLSurfaceCreate surface = {
1449         .width      = mode->x_res,
1450         .height     = mode->y_res,
1451         .stride     = -mode->x_res * 4,
1452         .format     = SPICE_SURFACE_FMT_32_xRGB,
1453         .flags      = loadvm ? QXL_SURF_FLAG_KEEP_DATA : 0,
1454         .mouse_mode = true,
1455         .mem        = devmem + d->shadow_rom.draw_area_offset,
1456     };
1457 
1458     trace_qxl_set_mode(d->id, modenr, mode->x_res, mode->y_res, mode->bits,
1459                        devmem);
1460     if (!loadvm) {
1461         qxl_hard_reset(d, 0);
1462     }
1463 
1464     d->guest_slots[0].slot = slot;
1465     assert(qxl_add_memslot(d, 0, devmem, QXL_SYNC) == 0);
1466 
1467     d->guest_primary.surface = surface;
1468     qxl_create_guest_primary(d, 0, QXL_SYNC);
1469 
1470     d->mode = QXL_MODE_COMPAT;
1471     d->cmdflags = QXL_COMMAND_FLAG_COMPAT;
1472     if (mode->bits == 16) {
1473         d->cmdflags |= QXL_COMMAND_FLAG_COMPAT_16BPP;
1474     }
1475     d->shadow_rom.mode = cpu_to_le32(modenr);
1476     d->rom->mode = cpu_to_le32(modenr);
1477     qxl_rom_set_dirty(d);
1478 }
1479 
1480 static void ioport_write(void *opaque, hwaddr addr,
1481                          uint64_t val, unsigned size)
1482 {
1483     PCIQXLDevice *d = opaque;
1484     uint32_t io_port = addr;
1485     qxl_async_io async = QXL_SYNC;
1486     uint32_t orig_io_port = io_port;
1487 
1488     if (d->guest_bug && io_port != QXL_IO_RESET) {
1489         return;
1490     }
1491 
1492     if (d->revision <= QXL_REVISION_STABLE_V10 &&
1493         io_port > QXL_IO_FLUSH_RELEASE) {
1494         qxl_set_guest_bug(d, "unsupported io %d for revision %d\n",
1495             io_port, d->revision);
1496         return;
1497     }
1498 
1499     switch (io_port) {
1500     case QXL_IO_RESET:
1501     case QXL_IO_SET_MODE:
1502     case QXL_IO_MEMSLOT_ADD:
1503     case QXL_IO_MEMSLOT_DEL:
1504     case QXL_IO_CREATE_PRIMARY:
1505     case QXL_IO_UPDATE_IRQ:
1506     case QXL_IO_LOG:
1507     case QXL_IO_MEMSLOT_ADD_ASYNC:
1508     case QXL_IO_CREATE_PRIMARY_ASYNC:
1509         break;
1510     default:
1511         if (d->mode != QXL_MODE_VGA) {
1512             break;
1513         }
1514         trace_qxl_io_unexpected_vga_mode(d->id,
1515             addr, val, io_port_to_string(io_port));
1516         /* be nice to buggy guest drivers */
1517         if (io_port >= QXL_IO_UPDATE_AREA_ASYNC &&
1518             io_port < QXL_IO_RANGE_SIZE) {
1519             qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
1520         }
1521         return;
1522     }
1523 
1524     /* we change the io_port to avoid ifdeffery in the main switch */
1525     orig_io_port = io_port;
1526     switch (io_port) {
1527     case QXL_IO_UPDATE_AREA_ASYNC:
1528         io_port = QXL_IO_UPDATE_AREA;
1529         goto async_common;
1530     case QXL_IO_MEMSLOT_ADD_ASYNC:
1531         io_port = QXL_IO_MEMSLOT_ADD;
1532         goto async_common;
1533     case QXL_IO_CREATE_PRIMARY_ASYNC:
1534         io_port = QXL_IO_CREATE_PRIMARY;
1535         goto async_common;
1536     case QXL_IO_DESTROY_PRIMARY_ASYNC:
1537         io_port = QXL_IO_DESTROY_PRIMARY;
1538         goto async_common;
1539     case QXL_IO_DESTROY_SURFACE_ASYNC:
1540         io_port = QXL_IO_DESTROY_SURFACE_WAIT;
1541         goto async_common;
1542     case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
1543         io_port = QXL_IO_DESTROY_ALL_SURFACES;
1544         goto async_common;
1545     case QXL_IO_FLUSH_SURFACES_ASYNC:
1546     case QXL_IO_MONITORS_CONFIG_ASYNC:
1547 async_common:
1548         async = QXL_ASYNC;
1549         qemu_mutex_lock(&d->async_lock);
1550         if (d->current_async != QXL_UNDEFINED_IO) {
1551             qxl_set_guest_bug(d, "%d async started before last (%d) complete",
1552                 io_port, d->current_async);
1553             qemu_mutex_unlock(&d->async_lock);
1554             return;
1555         }
1556         d->current_async = orig_io_port;
1557         qemu_mutex_unlock(&d->async_lock);
1558         break;
1559     default:
1560         break;
1561     }
1562     trace_qxl_io_write(d->id, qxl_mode_to_string(d->mode),
1563                        addr, io_port_to_string(addr),
1564                        val, size, async);
1565 
1566     switch (io_port) {
1567     case QXL_IO_UPDATE_AREA:
1568     {
1569         QXLCookie *cookie = NULL;
1570         QXLRect update = d->ram->update_area;
1571 
1572         if (d->ram->update_surface > d->ssd.num_surfaces) {
1573             qxl_set_guest_bug(d, "QXL_IO_UPDATE_AREA: invalid surface id %d\n",
1574                               d->ram->update_surface);
1575             break;
1576         }
1577         if (update.left >= update.right || update.top >= update.bottom ||
1578             update.left < 0 || update.top < 0) {
1579             qxl_set_guest_bug(d,
1580                     "QXL_IO_UPDATE_AREA: invalid area (%ux%u)x(%ux%u)\n",
1581                     update.left, update.top, update.right, update.bottom);
1582             break;
1583         }
1584         if (async == QXL_ASYNC) {
1585             cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
1586                                     QXL_IO_UPDATE_AREA_ASYNC);
1587             cookie->u.area = update;
1588         }
1589         qxl_spice_update_area(d, d->ram->update_surface,
1590                               cookie ? &cookie->u.area : &update,
1591                               NULL, 0, 0, async, cookie);
1592         break;
1593     }
1594     case QXL_IO_NOTIFY_CMD:
1595         qemu_spice_wakeup(&d->ssd);
1596         break;
1597     case QXL_IO_NOTIFY_CURSOR:
1598         qemu_spice_wakeup(&d->ssd);
1599         break;
1600     case QXL_IO_UPDATE_IRQ:
1601         qxl_update_irq(d);
1602         break;
1603     case QXL_IO_NOTIFY_OOM:
1604         if (!SPICE_RING_IS_EMPTY(&d->ram->release_ring)) {
1605             break;
1606         }
1607         d->oom_running = 1;
1608         qxl_spice_oom(d);
1609         d->oom_running = 0;
1610         break;
1611     case QXL_IO_SET_MODE:
1612         qxl_set_mode(d, val, 0);
1613         break;
1614     case QXL_IO_LOG:
1615         trace_qxl_io_log(d->id, d->ram->log_buf);
1616         if (d->guestdebug) {
1617             fprintf(stderr, "qxl/guest-%d: %" PRId64 ": %s", d->id,
1618                     qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), d->ram->log_buf);
1619         }
1620         break;
1621     case QXL_IO_RESET:
1622         qxl_hard_reset(d, 0);
1623         break;
1624     case QXL_IO_MEMSLOT_ADD:
1625         if (val >= NUM_MEMSLOTS) {
1626             qxl_set_guest_bug(d, "QXL_IO_MEMSLOT_ADD: val out of range");
1627             break;
1628         }
1629         if (d->guest_slots[val].active) {
1630             qxl_set_guest_bug(d,
1631                         "QXL_IO_MEMSLOT_ADD: memory slot already active");
1632             break;
1633         }
1634         d->guest_slots[val].slot = d->ram->mem_slot;
1635         qxl_add_memslot(d, val, 0, async);
1636         break;
1637     case QXL_IO_MEMSLOT_DEL:
1638         if (val >= NUM_MEMSLOTS) {
1639             qxl_set_guest_bug(d, "QXL_IO_MEMSLOT_DEL: val out of range");
1640             break;
1641         }
1642         qxl_del_memslot(d, val);
1643         break;
1644     case QXL_IO_CREATE_PRIMARY:
1645         if (val != 0) {
1646             qxl_set_guest_bug(d, "QXL_IO_CREATE_PRIMARY (async=%d): val != 0",
1647                           async);
1648             goto cancel_async;
1649         }
1650         d->guest_primary.surface = d->ram->create_surface;
1651         qxl_create_guest_primary(d, 0, async);
1652         break;
1653     case QXL_IO_DESTROY_PRIMARY:
1654         if (val != 0) {
1655             qxl_set_guest_bug(d, "QXL_IO_DESTROY_PRIMARY (async=%d): val != 0",
1656                           async);
1657             goto cancel_async;
1658         }
1659         if (!qxl_destroy_primary(d, async)) {
1660             trace_qxl_io_destroy_primary_ignored(d->id,
1661                                                  qxl_mode_to_string(d->mode));
1662             goto cancel_async;
1663         }
1664         break;
1665     case QXL_IO_DESTROY_SURFACE_WAIT:
1666         if (val >= d->ssd.num_surfaces) {
1667             qxl_set_guest_bug(d, "QXL_IO_DESTROY_SURFACE (async=%d):"
1668                              "%" PRIu64 " >= NUM_SURFACES", async, val);
1669             goto cancel_async;
1670         }
1671         qxl_spice_destroy_surface_wait(d, val, async);
1672         break;
1673     case QXL_IO_FLUSH_RELEASE: {
1674         QXLReleaseRing *ring = &d->ram->release_ring;
1675         if (ring->prod - ring->cons + 1 == ring->num_items) {
1676             fprintf(stderr,
1677                 "ERROR: no flush, full release ring [p%d,%dc]\n",
1678                 ring->prod, ring->cons);
1679         }
1680         qxl_push_free_res(d, 1 /* flush */);
1681         break;
1682     }
1683     case QXL_IO_FLUSH_SURFACES_ASYNC:
1684         qxl_spice_flush_surfaces_async(d);
1685         break;
1686     case QXL_IO_DESTROY_ALL_SURFACES:
1687         d->mode = QXL_MODE_UNDEFINED;
1688         qxl_spice_destroy_surfaces(d, async);
1689         break;
1690     case QXL_IO_MONITORS_CONFIG_ASYNC:
1691         qxl_spice_monitors_config_async(d, 0);
1692         break;
1693     default:
1694         qxl_set_guest_bug(d, "%s: unexpected ioport=0x%x\n", __func__, io_port);
1695     }
1696     return;
1697 cancel_async:
1698     if (async) {
1699         qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
1700         qemu_mutex_lock(&d->async_lock);
1701         d->current_async = QXL_UNDEFINED_IO;
1702         qemu_mutex_unlock(&d->async_lock);
1703     }
1704 }
1705 
1706 static uint64_t ioport_read(void *opaque, hwaddr addr,
1707                             unsigned size)
1708 {
1709     PCIQXLDevice *qxl = opaque;
1710 
1711     trace_qxl_io_read_unexpected(qxl->id);
1712     return 0xff;
1713 }
1714 
1715 static const MemoryRegionOps qxl_io_ops = {
1716     .read = ioport_read,
1717     .write = ioport_write,
1718     .valid = {
1719         .min_access_size = 1,
1720         .max_access_size = 1,
1721     },
1722 };
1723 
1724 static void qxl_update_irq_bh(void *opaque)
1725 {
1726     PCIQXLDevice *d = opaque;
1727     qxl_update_irq(d);
1728 }
1729 
1730 static void qxl_send_events(PCIQXLDevice *d, uint32_t events)
1731 {
1732     uint32_t old_pending;
1733     uint32_t le_events = cpu_to_le32(events);
1734 
1735     trace_qxl_send_events(d->id, events);
1736     if (!qemu_spice_display_is_running(&d->ssd)) {
1737         /* spice-server tracks guest running state and should not do this */
1738         fprintf(stderr, "%s: spice-server bug: guest stopped, ignoring\n",
1739                 __func__);
1740         trace_qxl_send_events_vm_stopped(d->id, events);
1741         return;
1742     }
1743     old_pending = atomic_fetch_or(&d->ram->int_pending, le_events);
1744     if ((old_pending & le_events) == le_events) {
1745         return;
1746     }
1747     qemu_bh_schedule(d->update_irq);
1748 }
1749 
1750 /* graphics console */
1751 
1752 static void qxl_hw_update(void *opaque)
1753 {
1754     PCIQXLDevice *qxl = opaque;
1755     VGACommonState *vga = &qxl->vga;
1756 
1757     switch (qxl->mode) {
1758     case QXL_MODE_VGA:
1759         vga->hw_ops->gfx_update(vga);
1760         break;
1761     case QXL_MODE_COMPAT:
1762     case QXL_MODE_NATIVE:
1763         qxl_render_update(qxl);
1764         break;
1765     default:
1766         break;
1767     }
1768 }
1769 
1770 static void qxl_hw_invalidate(void *opaque)
1771 {
1772     PCIQXLDevice *qxl = opaque;
1773     VGACommonState *vga = &qxl->vga;
1774 
1775     if (qxl->mode == QXL_MODE_VGA) {
1776         vga->hw_ops->invalidate(vga);
1777         return;
1778     }
1779 }
1780 
1781 static void qxl_hw_text_update(void *opaque, console_ch_t *chardata)
1782 {
1783     PCIQXLDevice *qxl = opaque;
1784     VGACommonState *vga = &qxl->vga;
1785 
1786     if (qxl->mode == QXL_MODE_VGA) {
1787         vga->hw_ops->text_update(vga, chardata);
1788         return;
1789     }
1790 }
1791 
1792 static void qxl_dirty_surfaces(PCIQXLDevice *qxl)
1793 {
1794     uintptr_t vram_start;
1795     int i;
1796 
1797     if (qxl->mode != QXL_MODE_NATIVE && qxl->mode != QXL_MODE_COMPAT) {
1798         return;
1799     }
1800 
1801     /* dirty the primary surface */
1802     qxl_set_dirty(&qxl->vga.vram, qxl->shadow_rom.draw_area_offset,
1803                   qxl->shadow_rom.surface0_area_size);
1804 
1805     vram_start = (uintptr_t)memory_region_get_ram_ptr(&qxl->vram_bar);
1806 
1807     /* dirty the off-screen surfaces */
1808     for (i = 0; i < qxl->ssd.num_surfaces; i++) {
1809         QXLSurfaceCmd *cmd;
1810         intptr_t surface_offset;
1811         int surface_size;
1812 
1813         if (qxl->guest_surfaces.cmds[i] == 0) {
1814             continue;
1815         }
1816 
1817         cmd = qxl_phys2virt(qxl, qxl->guest_surfaces.cmds[i],
1818                             MEMSLOT_GROUP_GUEST);
1819         assert(cmd);
1820         assert(cmd->type == QXL_SURFACE_CMD_CREATE);
1821         surface_offset = (intptr_t)qxl_phys2virt(qxl,
1822                                                  cmd->u.surface_create.data,
1823                                                  MEMSLOT_GROUP_GUEST);
1824         assert(surface_offset);
1825         surface_offset -= vram_start;
1826         surface_size = cmd->u.surface_create.height *
1827                        abs(cmd->u.surface_create.stride);
1828         trace_qxl_surfaces_dirty(qxl->id, i, (int)surface_offset, surface_size);
1829         qxl_set_dirty(&qxl->vram_bar, surface_offset, surface_size);
1830     }
1831 }
1832 
1833 static void qxl_vm_change_state_handler(void *opaque, int running,
1834                                         RunState state)
1835 {
1836     PCIQXLDevice *qxl = opaque;
1837 
1838     if (running) {
1839         /*
1840          * if qxl_send_events was called from spice server context before
1841          * migration ended, qxl_update_irq for these events might not have been
1842          * called
1843          */
1844          qxl_update_irq(qxl);
1845     } else {
1846         /* make sure surfaces are saved before migration */
1847         qxl_dirty_surfaces(qxl);
1848     }
1849 }
1850 
1851 /* display change listener */
1852 
1853 static void display_update(DisplayChangeListener *dcl,
1854                            int x, int y, int w, int h)
1855 {
1856     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1857 
1858     if (qxl->mode == QXL_MODE_VGA) {
1859         qemu_spice_display_update(&qxl->ssd, x, y, w, h);
1860     }
1861 }
1862 
1863 static void display_switch(DisplayChangeListener *dcl,
1864                            struct DisplaySurface *surface)
1865 {
1866     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1867 
1868     qxl->ssd.ds = surface;
1869     if (qxl->mode == QXL_MODE_VGA) {
1870         qemu_spice_display_switch(&qxl->ssd, surface);
1871     }
1872 }
1873 
1874 static void display_refresh(DisplayChangeListener *dcl)
1875 {
1876     PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
1877 
1878     if (qxl->mode == QXL_MODE_VGA) {
1879         qemu_spice_display_refresh(&qxl->ssd);
1880     } else {
1881         qemu_mutex_lock(&qxl->ssd.lock);
1882         qemu_spice_cursor_refresh_unlocked(&qxl->ssd);
1883         qemu_mutex_unlock(&qxl->ssd.lock);
1884     }
1885 }
1886 
1887 static DisplayChangeListenerOps display_listener_ops = {
1888     .dpy_name        = "spice/qxl",
1889     .dpy_gfx_update  = display_update,
1890     .dpy_gfx_switch  = display_switch,
1891     .dpy_refresh     = display_refresh,
1892 };
1893 
1894 static void qxl_init_ramsize(PCIQXLDevice *qxl)
1895 {
1896     /* vga mode framebuffer / primary surface (bar 0, first part) */
1897     if (qxl->vgamem_size_mb < 8) {
1898         qxl->vgamem_size_mb = 8;
1899     }
1900     qxl->vgamem_size = qxl->vgamem_size_mb * 1024 * 1024;
1901 
1902     /* vga ram (bar 0, total) */
1903     if (qxl->ram_size_mb != -1) {
1904         qxl->vga.vram_size = qxl->ram_size_mb * 1024 * 1024;
1905     }
1906     if (qxl->vga.vram_size < qxl->vgamem_size * 2) {
1907         qxl->vga.vram_size = qxl->vgamem_size * 2;
1908     }
1909 
1910     /* vram32 (surfaces, 32bit, bar 1) */
1911     if (qxl->vram32_size_mb != -1) {
1912         qxl->vram32_size = qxl->vram32_size_mb * 1024 * 1024;
1913     }
1914     if (qxl->vram32_size < 4096) {
1915         qxl->vram32_size = 4096;
1916     }
1917 
1918     /* vram (surfaces, 64bit, bar 4+5) */
1919     if (qxl->vram_size_mb != -1) {
1920         qxl->vram_size = qxl->vram_size_mb * 1024 * 1024;
1921     }
1922     if (qxl->vram_size < qxl->vram32_size) {
1923         qxl->vram_size = qxl->vram32_size;
1924     }
1925 
1926     if (qxl->revision == 1) {
1927         qxl->vram32_size = 4096;
1928         qxl->vram_size = 4096;
1929     }
1930     qxl->vgamem_size = msb_mask(qxl->vgamem_size * 2 - 1);
1931     qxl->vga.vram_size = msb_mask(qxl->vga.vram_size * 2 - 1);
1932     qxl->vram32_size = msb_mask(qxl->vram32_size * 2 - 1);
1933     qxl->vram_size = msb_mask(qxl->vram_size * 2 - 1);
1934 }
1935 
1936 static int qxl_init_common(PCIQXLDevice *qxl)
1937 {
1938     uint8_t* config = qxl->pci.config;
1939     uint32_t pci_device_rev;
1940     uint32_t io_size;
1941 
1942     qxl->mode = QXL_MODE_UNDEFINED;
1943     qxl->generation = 1;
1944     qxl->num_memslots = NUM_MEMSLOTS;
1945     qemu_mutex_init(&qxl->track_lock);
1946     qemu_mutex_init(&qxl->async_lock);
1947     qxl->current_async = QXL_UNDEFINED_IO;
1948     qxl->guest_bug = 0;
1949 
1950     switch (qxl->revision) {
1951     case 1: /* spice 0.4 -- qxl-1 */
1952         pci_device_rev = QXL_REVISION_STABLE_V04;
1953         io_size = 8;
1954         break;
1955     case 2: /* spice 0.6 -- qxl-2 */
1956         pci_device_rev = QXL_REVISION_STABLE_V06;
1957         io_size = 16;
1958         break;
1959     case 3: /* qxl-3 */
1960         pci_device_rev = QXL_REVISION_STABLE_V10;
1961         io_size = 32; /* PCI region size must be pow2 */
1962         break;
1963     case 4: /* qxl-4 */
1964         pci_device_rev = QXL_REVISION_STABLE_V12;
1965         io_size = msb_mask(QXL_IO_RANGE_SIZE * 2 - 1);
1966         break;
1967     default:
1968         error_report("Invalid revision %d for qxl device (max %d)",
1969                      qxl->revision, QXL_DEFAULT_REVISION);
1970         return -1;
1971     }
1972 
1973     pci_set_byte(&config[PCI_REVISION_ID], pci_device_rev);
1974     pci_set_byte(&config[PCI_INTERRUPT_PIN], 1);
1975 
1976     qxl->rom_size = qxl_rom_size();
1977     memory_region_init_ram(&qxl->rom_bar, OBJECT(qxl), "qxl.vrom",
1978                            qxl->rom_size);
1979     vmstate_register_ram(&qxl->rom_bar, &qxl->pci.qdev);
1980     init_qxl_rom(qxl);
1981     init_qxl_ram(qxl);
1982 
1983     qxl->guest_surfaces.cmds = g_new0(QXLPHYSICAL, qxl->ssd.num_surfaces);
1984     memory_region_init_ram(&qxl->vram_bar, OBJECT(qxl), "qxl.vram",
1985                            qxl->vram_size);
1986     vmstate_register_ram(&qxl->vram_bar, &qxl->pci.qdev);
1987     memory_region_init_alias(&qxl->vram32_bar, OBJECT(qxl), "qxl.vram32",
1988                              &qxl->vram_bar, 0, qxl->vram32_size);
1989 
1990     memory_region_init_io(&qxl->io_bar, OBJECT(qxl), &qxl_io_ops, qxl,
1991                           "qxl-ioports", io_size);
1992     if (qxl->id == 0) {
1993         vga_dirty_log_start(&qxl->vga);
1994     }
1995     memory_region_set_flush_coalesced(&qxl->io_bar);
1996 
1997 
1998     pci_register_bar(&qxl->pci, QXL_IO_RANGE_INDEX,
1999                      PCI_BASE_ADDRESS_SPACE_IO, &qxl->io_bar);
2000 
2001     pci_register_bar(&qxl->pci, QXL_ROM_RANGE_INDEX,
2002                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->rom_bar);
2003 
2004     pci_register_bar(&qxl->pci, QXL_RAM_RANGE_INDEX,
2005                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vga.vram);
2006 
2007     pci_register_bar(&qxl->pci, QXL_VRAM_RANGE_INDEX,
2008                      PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vram32_bar);
2009 
2010     if (qxl->vram32_size < qxl->vram_size) {
2011         /*
2012          * Make the 64bit vram bar show up only in case it is
2013          * configured to be larger than the 32bit vram bar.
2014          */
2015         pci_register_bar(&qxl->pci, QXL_VRAM64_RANGE_INDEX,
2016                          PCI_BASE_ADDRESS_SPACE_MEMORY |
2017                          PCI_BASE_ADDRESS_MEM_TYPE_64 |
2018                          PCI_BASE_ADDRESS_MEM_PREFETCH,
2019                          &qxl->vram_bar);
2020     }
2021 
2022     /* print pci bar details */
2023     dprint(qxl, 1, "ram/%s: %d MB [region 0]\n",
2024            qxl->id == 0 ? "pri" : "sec",
2025            qxl->vga.vram_size / (1024*1024));
2026     dprint(qxl, 1, "vram/32: %d MB [region 1]\n",
2027            qxl->vram32_size / (1024*1024));
2028     dprint(qxl, 1, "vram/64: %d MB %s\n",
2029            qxl->vram_size / (1024*1024),
2030            qxl->vram32_size < qxl->vram_size ? "[region 4]" : "[unmapped]");
2031 
2032     qxl->ssd.qxl.base.sif = &qxl_interface.base;
2033     if (qemu_spice_add_display_interface(&qxl->ssd.qxl, qxl->vga.con) != 0) {
2034         error_report("qxl interface %d.%d not supported by spice-server",
2035                      SPICE_INTERFACE_QXL_MAJOR, SPICE_INTERFACE_QXL_MINOR);
2036         return -1;
2037     }
2038     qemu_add_vm_change_state_handler(qxl_vm_change_state_handler, qxl);
2039 
2040     qxl->update_irq = qemu_bh_new(qxl_update_irq_bh, qxl);
2041     qxl_reset_state(qxl);
2042 
2043     qxl->update_area_bh = qemu_bh_new(qxl_render_update_area_bh, qxl);
2044 
2045     return 0;
2046 }
2047 
2048 static const GraphicHwOps qxl_ops = {
2049     .invalidate  = qxl_hw_invalidate,
2050     .gfx_update  = qxl_hw_update,
2051     .text_update = qxl_hw_text_update,
2052 };
2053 
2054 static int qxl_init_primary(PCIDevice *dev)
2055 {
2056     PCIQXLDevice *qxl = DO_UPCAST(PCIQXLDevice, pci, dev);
2057     VGACommonState *vga = &qxl->vga;
2058     PortioList *qxl_vga_port_list = g_new(PortioList, 1);
2059     int rc;
2060 
2061     qxl->id = 0;
2062     qxl_init_ramsize(qxl);
2063     vga->vram_size_mb = qxl->vga.vram_size >> 20;
2064     vga_common_init(vga, OBJECT(dev));
2065     vga_init(vga, OBJECT(dev),
2066              pci_address_space(dev), pci_address_space_io(dev), false);
2067     portio_list_init(qxl_vga_port_list, OBJECT(dev), qxl_vga_portio_list,
2068                      vga, "vga");
2069     portio_list_set_flush_coalesced(qxl_vga_port_list);
2070     portio_list_add(qxl_vga_port_list, pci_address_space_io(dev), 0x3b0);
2071 
2072     vga->con = graphic_console_init(DEVICE(dev), 0, &qxl_ops, qxl);
2073     qemu_spice_display_init_common(&qxl->ssd);
2074 
2075     rc = qxl_init_common(qxl);
2076     if (rc != 0) {
2077         return rc;
2078     }
2079 
2080     qxl->ssd.dcl.ops = &display_listener_ops;
2081     qxl->ssd.dcl.con = vga->con;
2082     register_displaychangelistener(&qxl->ssd.dcl);
2083     return rc;
2084 }
2085 
2086 static int qxl_init_secondary(PCIDevice *dev)
2087 {
2088     static int device_id = 1;
2089     PCIQXLDevice *qxl = DO_UPCAST(PCIQXLDevice, pci, dev);
2090 
2091     qxl->id = device_id++;
2092     qxl_init_ramsize(qxl);
2093     memory_region_init_ram(&qxl->vga.vram, OBJECT(dev), "qxl.vgavram",
2094                            qxl->vga.vram_size);
2095     vmstate_register_ram(&qxl->vga.vram, &qxl->pci.qdev);
2096     qxl->vga.vram_ptr = memory_region_get_ram_ptr(&qxl->vga.vram);
2097     qxl->vga.con = graphic_console_init(DEVICE(dev), 0, &qxl_ops, qxl);
2098 
2099     return qxl_init_common(qxl);
2100 }
2101 
2102 static void qxl_pre_save(void *opaque)
2103 {
2104     PCIQXLDevice* d = opaque;
2105     uint8_t *ram_start = d->vga.vram_ptr;
2106 
2107     trace_qxl_pre_save(d->id);
2108     if (d->last_release == NULL) {
2109         d->last_release_offset = 0;
2110     } else {
2111         d->last_release_offset = (uint8_t *)d->last_release - ram_start;
2112     }
2113     assert(d->last_release_offset < d->vga.vram_size);
2114 }
2115 
2116 static int qxl_pre_load(void *opaque)
2117 {
2118     PCIQXLDevice* d = opaque;
2119 
2120     trace_qxl_pre_load(d->id);
2121     qxl_hard_reset(d, 1);
2122     qxl_exit_vga_mode(d);
2123     return 0;
2124 }
2125 
2126 static void qxl_create_memslots(PCIQXLDevice *d)
2127 {
2128     int i;
2129 
2130     for (i = 0; i < NUM_MEMSLOTS; i++) {
2131         if (!d->guest_slots[i].active) {
2132             continue;
2133         }
2134         qxl_add_memslot(d, i, 0, QXL_SYNC);
2135     }
2136 }
2137 
2138 static int qxl_post_load(void *opaque, int version)
2139 {
2140     PCIQXLDevice* d = opaque;
2141     uint8_t *ram_start = d->vga.vram_ptr;
2142     QXLCommandExt *cmds;
2143     int in, out, newmode;
2144 
2145     assert(d->last_release_offset < d->vga.vram_size);
2146     if (d->last_release_offset == 0) {
2147         d->last_release = NULL;
2148     } else {
2149         d->last_release = (QXLReleaseInfo *)(ram_start + d->last_release_offset);
2150     }
2151 
2152     d->modes = (QXLModes*)((uint8_t*)d->rom + d->rom->modes_offset);
2153 
2154     trace_qxl_post_load(d->id, qxl_mode_to_string(d->mode));
2155     newmode = d->mode;
2156     d->mode = QXL_MODE_UNDEFINED;
2157 
2158     switch (newmode) {
2159     case QXL_MODE_UNDEFINED:
2160         qxl_create_memslots(d);
2161         break;
2162     case QXL_MODE_VGA:
2163         qxl_create_memslots(d);
2164         qxl_enter_vga_mode(d);
2165         break;
2166     case QXL_MODE_NATIVE:
2167         qxl_create_memslots(d);
2168         qxl_create_guest_primary(d, 1, QXL_SYNC);
2169 
2170         /* replay surface-create and cursor-set commands */
2171         cmds = g_malloc0(sizeof(QXLCommandExt) * (d->ssd.num_surfaces + 1));
2172         for (in = 0, out = 0; in < d->ssd.num_surfaces; in++) {
2173             if (d->guest_surfaces.cmds[in] == 0) {
2174                 continue;
2175             }
2176             cmds[out].cmd.data = d->guest_surfaces.cmds[in];
2177             cmds[out].cmd.type = QXL_CMD_SURFACE;
2178             cmds[out].group_id = MEMSLOT_GROUP_GUEST;
2179             out++;
2180         }
2181         if (d->guest_cursor) {
2182             cmds[out].cmd.data = d->guest_cursor;
2183             cmds[out].cmd.type = QXL_CMD_CURSOR;
2184             cmds[out].group_id = MEMSLOT_GROUP_GUEST;
2185             out++;
2186         }
2187         qxl_spice_loadvm_commands(d, cmds, out);
2188         g_free(cmds);
2189         if (d->guest_monitors_config) {
2190             qxl_spice_monitors_config_async(d, 1);
2191         }
2192         break;
2193     case QXL_MODE_COMPAT:
2194         /* note: no need to call qxl_create_memslots, qxl_set_mode
2195          * creates the mem slot. */
2196         qxl_set_mode(d, d->shadow_rom.mode, 1);
2197         break;
2198     }
2199     return 0;
2200 }
2201 
2202 #define QXL_SAVE_VERSION 21
2203 
2204 static bool qxl_monitors_config_needed(void *opaque)
2205 {
2206     PCIQXLDevice *qxl = opaque;
2207 
2208     return qxl->guest_monitors_config != 0;
2209 }
2210 
2211 
2212 static VMStateDescription qxl_memslot = {
2213     .name               = "qxl-memslot",
2214     .version_id         = QXL_SAVE_VERSION,
2215     .minimum_version_id = QXL_SAVE_VERSION,
2216     .fields = (VMStateField[]) {
2217         VMSTATE_UINT64(slot.mem_start, struct guest_slots),
2218         VMSTATE_UINT64(slot.mem_end,   struct guest_slots),
2219         VMSTATE_UINT32(active,         struct guest_slots),
2220         VMSTATE_END_OF_LIST()
2221     }
2222 };
2223 
2224 static VMStateDescription qxl_surface = {
2225     .name               = "qxl-surface",
2226     .version_id         = QXL_SAVE_VERSION,
2227     .minimum_version_id = QXL_SAVE_VERSION,
2228     .fields = (VMStateField[]) {
2229         VMSTATE_UINT32(width,      QXLSurfaceCreate),
2230         VMSTATE_UINT32(height,     QXLSurfaceCreate),
2231         VMSTATE_INT32(stride,      QXLSurfaceCreate),
2232         VMSTATE_UINT32(format,     QXLSurfaceCreate),
2233         VMSTATE_UINT32(position,   QXLSurfaceCreate),
2234         VMSTATE_UINT32(mouse_mode, QXLSurfaceCreate),
2235         VMSTATE_UINT32(flags,      QXLSurfaceCreate),
2236         VMSTATE_UINT32(type,       QXLSurfaceCreate),
2237         VMSTATE_UINT64(mem,        QXLSurfaceCreate),
2238         VMSTATE_END_OF_LIST()
2239     }
2240 };
2241 
2242 static VMStateDescription qxl_vmstate_monitors_config = {
2243     .name               = "qxl/monitors-config",
2244     .version_id         = 1,
2245     .minimum_version_id = 1,
2246     .fields = (VMStateField[]) {
2247         VMSTATE_UINT64(guest_monitors_config, PCIQXLDevice),
2248         VMSTATE_END_OF_LIST()
2249     },
2250 };
2251 
2252 static VMStateDescription qxl_vmstate = {
2253     .name               = "qxl",
2254     .version_id         = QXL_SAVE_VERSION,
2255     .minimum_version_id = QXL_SAVE_VERSION,
2256     .pre_save           = qxl_pre_save,
2257     .pre_load           = qxl_pre_load,
2258     .post_load          = qxl_post_load,
2259     .fields = (VMStateField[]) {
2260         VMSTATE_PCI_DEVICE(pci, PCIQXLDevice),
2261         VMSTATE_STRUCT(vga, PCIQXLDevice, 0, vmstate_vga_common, VGACommonState),
2262         VMSTATE_UINT32(shadow_rom.mode, PCIQXLDevice),
2263         VMSTATE_UINT32(num_free_res, PCIQXLDevice),
2264         VMSTATE_UINT32(last_release_offset, PCIQXLDevice),
2265         VMSTATE_UINT32(mode, PCIQXLDevice),
2266         VMSTATE_UINT32(ssd.unique, PCIQXLDevice),
2267         VMSTATE_INT32_EQUAL(num_memslots, PCIQXLDevice),
2268         VMSTATE_STRUCT_ARRAY(guest_slots, PCIQXLDevice, NUM_MEMSLOTS, 0,
2269                              qxl_memslot, struct guest_slots),
2270         VMSTATE_STRUCT(guest_primary.surface, PCIQXLDevice, 0,
2271                        qxl_surface, QXLSurfaceCreate),
2272         VMSTATE_INT32_EQUAL(ssd.num_surfaces, PCIQXLDevice),
2273         VMSTATE_VARRAY_INT32(guest_surfaces.cmds, PCIQXLDevice,
2274                              ssd.num_surfaces, 0,
2275                              vmstate_info_uint64, uint64_t),
2276         VMSTATE_UINT64(guest_cursor, PCIQXLDevice),
2277         VMSTATE_END_OF_LIST()
2278     },
2279     .subsections = (VMStateSubsection[]) {
2280         {
2281             .vmsd = &qxl_vmstate_monitors_config,
2282             .needed = qxl_monitors_config_needed,
2283         }, {
2284             /* empty */
2285         }
2286     }
2287 };
2288 
2289 static Property qxl_properties[] = {
2290         DEFINE_PROP_UINT32("ram_size", PCIQXLDevice, vga.vram_size,
2291                            64 * 1024 * 1024),
2292         DEFINE_PROP_UINT32("vram_size", PCIQXLDevice, vram32_size,
2293                            64 * 1024 * 1024),
2294         DEFINE_PROP_UINT32("revision", PCIQXLDevice, revision,
2295                            QXL_DEFAULT_REVISION),
2296         DEFINE_PROP_UINT32("debug", PCIQXLDevice, debug, 0),
2297         DEFINE_PROP_UINT32("guestdebug", PCIQXLDevice, guestdebug, 0),
2298         DEFINE_PROP_UINT32("cmdlog", PCIQXLDevice, cmdlog, 0),
2299         DEFINE_PROP_UINT32("ram_size_mb",  PCIQXLDevice, ram_size_mb, -1),
2300         DEFINE_PROP_UINT32("vram_size_mb", PCIQXLDevice, vram32_size_mb, -1),
2301         DEFINE_PROP_UINT32("vram64_size_mb", PCIQXLDevice, vram_size_mb, -1),
2302         DEFINE_PROP_UINT32("vgamem_mb", PCIQXLDevice, vgamem_size_mb, 16),
2303         DEFINE_PROP_INT32("surfaces", PCIQXLDevice, ssd.num_surfaces, 1024),
2304         DEFINE_PROP_END_OF_LIST(),
2305 };
2306 
2307 static void qxl_primary_class_init(ObjectClass *klass, void *data)
2308 {
2309     DeviceClass *dc = DEVICE_CLASS(klass);
2310     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2311 
2312     k->init = qxl_init_primary;
2313     k->romfile = "vgabios-qxl.bin";
2314     k->vendor_id = REDHAT_PCI_VENDOR_ID;
2315     k->device_id = QXL_DEVICE_ID_STABLE;
2316     k->class_id = PCI_CLASS_DISPLAY_VGA;
2317     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
2318     dc->desc = "Spice QXL GPU (primary, vga compatible)";
2319     dc->reset = qxl_reset_handler;
2320     dc->vmsd = &qxl_vmstate;
2321     dc->props = qxl_properties;
2322     dc->hotpluggable = false;
2323 }
2324 
2325 static const TypeInfo qxl_primary_info = {
2326     .name          = "qxl-vga",
2327     .parent        = TYPE_PCI_DEVICE,
2328     .instance_size = sizeof(PCIQXLDevice),
2329     .class_init    = qxl_primary_class_init,
2330 };
2331 
2332 static void qxl_secondary_class_init(ObjectClass *klass, void *data)
2333 {
2334     DeviceClass *dc = DEVICE_CLASS(klass);
2335     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2336 
2337     k->init = qxl_init_secondary;
2338     k->vendor_id = REDHAT_PCI_VENDOR_ID;
2339     k->device_id = QXL_DEVICE_ID_STABLE;
2340     k->class_id = PCI_CLASS_DISPLAY_OTHER;
2341     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
2342     dc->desc = "Spice QXL GPU (secondary)";
2343     dc->reset = qxl_reset_handler;
2344     dc->vmsd = &qxl_vmstate;
2345     dc->props = qxl_properties;
2346 }
2347 
2348 static const TypeInfo qxl_secondary_info = {
2349     .name          = "qxl",
2350     .parent        = TYPE_PCI_DEVICE,
2351     .instance_size = sizeof(PCIQXLDevice),
2352     .class_init    = qxl_secondary_class_init,
2353 };
2354 
2355 static void qxl_register_types(void)
2356 {
2357     type_register_static(&qxl_primary_info);
2358     type_register_static(&qxl_secondary_info);
2359 }
2360 
2361 type_init(qxl_register_types)
2362