xref: /openbmc/qemu/hw/display/vmware_vga.c (revision 1d300b5f)
1 /*
2  * QEMU VMware-SVGA "chipset".
3  *
4  * Copyright (c) 2007 Andrzej Zaborowski  <balrog@zabor.org>
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to deal
8  * in the Software without restriction, including without limitation the rights
9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  * copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22  * THE SOFTWARE.
23  */
24 #include "hw/hw.h"
25 #include "hw/loader.h"
26 #include "ui/console.h"
27 #include "hw/pci/pci.h"
28 
29 #undef VERBOSE
30 #define HW_RECT_ACCEL
31 #define HW_FILL_ACCEL
32 #define HW_MOUSE_ACCEL
33 
34 #include "vga_int.h"
35 
36 /* See http://vmware-svga.sf.net/ for some documentation on VMWare SVGA */
37 
38 struct vmsvga_state_s {
39     VGACommonState vga;
40 
41     int invalidated;
42     int enable;
43     int config;
44     struct {
45         int id;
46         int x;
47         int y;
48         int on;
49     } cursor;
50 
51     int index;
52     int scratch_size;
53     uint32_t *scratch;
54     int new_width;
55     int new_height;
56     int new_depth;
57     uint32_t guest;
58     uint32_t svgaid;
59     int syncing;
60 
61     MemoryRegion fifo_ram;
62     uint8_t *fifo_ptr;
63     unsigned int fifo_size;
64 
65     union {
66         uint32_t *fifo;
67         struct QEMU_PACKED {
68             uint32_t min;
69             uint32_t max;
70             uint32_t next_cmd;
71             uint32_t stop;
72             /* Add registers here when adding capabilities.  */
73             uint32_t fifo[0];
74         } *cmd;
75     };
76 
77 #define REDRAW_FIFO_LEN  512
78     struct vmsvga_rect_s {
79         int x, y, w, h;
80     } redraw_fifo[REDRAW_FIFO_LEN];
81     int redraw_fifo_first, redraw_fifo_last;
82 };
83 
84 #define TYPE_VMWARE_SVGA "vmware-svga"
85 
86 #define VMWARE_SVGA(obj) \
87     OBJECT_CHECK(struct pci_vmsvga_state_s, (obj), TYPE_VMWARE_SVGA)
88 
89 struct pci_vmsvga_state_s {
90     /*< private >*/
91     PCIDevice parent_obj;
92     /*< public >*/
93 
94     struct vmsvga_state_s chip;
95     MemoryRegion io_bar;
96 };
97 
98 #define SVGA_MAGIC              0x900000UL
99 #define SVGA_MAKE_ID(ver)       (SVGA_MAGIC << 8 | (ver))
100 #define SVGA_ID_0               SVGA_MAKE_ID(0)
101 #define SVGA_ID_1               SVGA_MAKE_ID(1)
102 #define SVGA_ID_2               SVGA_MAKE_ID(2)
103 
104 #define SVGA_LEGACY_BASE_PORT   0x4560
105 #define SVGA_INDEX_PORT         0x0
106 #define SVGA_VALUE_PORT         0x1
107 #define SVGA_BIOS_PORT          0x2
108 
109 #define SVGA_VERSION_2
110 
111 #ifdef SVGA_VERSION_2
112 # define SVGA_ID                SVGA_ID_2
113 # define SVGA_IO_BASE           SVGA_LEGACY_BASE_PORT
114 # define SVGA_IO_MUL            1
115 # define SVGA_FIFO_SIZE         0x10000
116 # define SVGA_PCI_DEVICE_ID     PCI_DEVICE_ID_VMWARE_SVGA2
117 #else
118 # define SVGA_ID                SVGA_ID_1
119 # define SVGA_IO_BASE           SVGA_LEGACY_BASE_PORT
120 # define SVGA_IO_MUL            4
121 # define SVGA_FIFO_SIZE         0x10000
122 # define SVGA_PCI_DEVICE_ID     PCI_DEVICE_ID_VMWARE_SVGA
123 #endif
124 
125 enum {
126     /* ID 0, 1 and 2 registers */
127     SVGA_REG_ID = 0,
128     SVGA_REG_ENABLE = 1,
129     SVGA_REG_WIDTH = 2,
130     SVGA_REG_HEIGHT = 3,
131     SVGA_REG_MAX_WIDTH = 4,
132     SVGA_REG_MAX_HEIGHT = 5,
133     SVGA_REG_DEPTH = 6,
134     SVGA_REG_BITS_PER_PIXEL = 7,        /* Current bpp in the guest */
135     SVGA_REG_PSEUDOCOLOR = 8,
136     SVGA_REG_RED_MASK = 9,
137     SVGA_REG_GREEN_MASK = 10,
138     SVGA_REG_BLUE_MASK = 11,
139     SVGA_REG_BYTES_PER_LINE = 12,
140     SVGA_REG_FB_START = 13,
141     SVGA_REG_FB_OFFSET = 14,
142     SVGA_REG_VRAM_SIZE = 15,
143     SVGA_REG_FB_SIZE = 16,
144 
145     /* ID 1 and 2 registers */
146     SVGA_REG_CAPABILITIES = 17,
147     SVGA_REG_MEM_START = 18,            /* Memory for command FIFO */
148     SVGA_REG_MEM_SIZE = 19,
149     SVGA_REG_CONFIG_DONE = 20,          /* Set when memory area configured */
150     SVGA_REG_SYNC = 21,                 /* Write to force synchronization */
151     SVGA_REG_BUSY = 22,                 /* Read to check if sync is done */
152     SVGA_REG_GUEST_ID = 23,             /* Set guest OS identifier */
153     SVGA_REG_CURSOR_ID = 24,            /* ID of cursor */
154     SVGA_REG_CURSOR_X = 25,             /* Set cursor X position */
155     SVGA_REG_CURSOR_Y = 26,             /* Set cursor Y position */
156     SVGA_REG_CURSOR_ON = 27,            /* Turn cursor on/off */
157     SVGA_REG_HOST_BITS_PER_PIXEL = 28,  /* Current bpp in the host */
158     SVGA_REG_SCRATCH_SIZE = 29,         /* Number of scratch registers */
159     SVGA_REG_MEM_REGS = 30,             /* Number of FIFO registers */
160     SVGA_REG_NUM_DISPLAYS = 31,         /* Number of guest displays */
161     SVGA_REG_PITCHLOCK = 32,            /* Fixed pitch for all modes */
162 
163     SVGA_PALETTE_BASE = 1024,           /* Base of SVGA color map */
164     SVGA_PALETTE_END  = SVGA_PALETTE_BASE + 767,
165     SVGA_SCRATCH_BASE = SVGA_PALETTE_BASE + 768,
166 };
167 
168 #define SVGA_CAP_NONE                   0
169 #define SVGA_CAP_RECT_FILL              (1 << 0)
170 #define SVGA_CAP_RECT_COPY              (1 << 1)
171 #define SVGA_CAP_RECT_PAT_FILL          (1 << 2)
172 #define SVGA_CAP_LEGACY_OFFSCREEN       (1 << 3)
173 #define SVGA_CAP_RASTER_OP              (1 << 4)
174 #define SVGA_CAP_CURSOR                 (1 << 5)
175 #define SVGA_CAP_CURSOR_BYPASS          (1 << 6)
176 #define SVGA_CAP_CURSOR_BYPASS_2        (1 << 7)
177 #define SVGA_CAP_8BIT_EMULATION         (1 << 8)
178 #define SVGA_CAP_ALPHA_CURSOR           (1 << 9)
179 #define SVGA_CAP_GLYPH                  (1 << 10)
180 #define SVGA_CAP_GLYPH_CLIPPING         (1 << 11)
181 #define SVGA_CAP_OFFSCREEN_1            (1 << 12)
182 #define SVGA_CAP_ALPHA_BLEND            (1 << 13)
183 #define SVGA_CAP_3D                     (1 << 14)
184 #define SVGA_CAP_EXTENDED_FIFO          (1 << 15)
185 #define SVGA_CAP_MULTIMON               (1 << 16)
186 #define SVGA_CAP_PITCHLOCK              (1 << 17)
187 
188 /*
189  * FIFO offsets (seen as an array of 32-bit words)
190  */
191 enum {
192     /*
193      * The original defined FIFO offsets
194      */
195     SVGA_FIFO_MIN = 0,
196     SVGA_FIFO_MAX,      /* The distance from MIN to MAX must be at least 10K */
197     SVGA_FIFO_NEXT_CMD,
198     SVGA_FIFO_STOP,
199 
200     /*
201      * Additional offsets added as of SVGA_CAP_EXTENDED_FIFO
202      */
203     SVGA_FIFO_CAPABILITIES = 4,
204     SVGA_FIFO_FLAGS,
205     SVGA_FIFO_FENCE,
206     SVGA_FIFO_3D_HWVERSION,
207     SVGA_FIFO_PITCHLOCK,
208 };
209 
210 #define SVGA_FIFO_CAP_NONE              0
211 #define SVGA_FIFO_CAP_FENCE             (1 << 0)
212 #define SVGA_FIFO_CAP_ACCELFRONT        (1 << 1)
213 #define SVGA_FIFO_CAP_PITCHLOCK         (1 << 2)
214 
215 #define SVGA_FIFO_FLAG_NONE             0
216 #define SVGA_FIFO_FLAG_ACCELFRONT       (1 << 0)
217 
218 /* These values can probably be changed arbitrarily.  */
219 #define SVGA_SCRATCH_SIZE               0x8000
220 #define SVGA_MAX_WIDTH                  2360
221 #define SVGA_MAX_HEIGHT                 1770
222 
223 #ifdef VERBOSE
224 # define GUEST_OS_BASE          0x5001
225 static const char *vmsvga_guest_id[] = {
226     [0x00] = "Dos",
227     [0x01] = "Windows 3.1",
228     [0x02] = "Windows 95",
229     [0x03] = "Windows 98",
230     [0x04] = "Windows ME",
231     [0x05] = "Windows NT",
232     [0x06] = "Windows 2000",
233     [0x07] = "Linux",
234     [0x08] = "OS/2",
235     [0x09] = "an unknown OS",
236     [0x0a] = "BSD",
237     [0x0b] = "Whistler",
238     [0x0c] = "an unknown OS",
239     [0x0d] = "an unknown OS",
240     [0x0e] = "an unknown OS",
241     [0x0f] = "an unknown OS",
242     [0x10] = "an unknown OS",
243     [0x11] = "an unknown OS",
244     [0x12] = "an unknown OS",
245     [0x13] = "an unknown OS",
246     [0x14] = "an unknown OS",
247     [0x15] = "Windows 2003",
248 };
249 #endif
250 
251 enum {
252     SVGA_CMD_INVALID_CMD = 0,
253     SVGA_CMD_UPDATE = 1,
254     SVGA_CMD_RECT_FILL = 2,
255     SVGA_CMD_RECT_COPY = 3,
256     SVGA_CMD_DEFINE_BITMAP = 4,
257     SVGA_CMD_DEFINE_BITMAP_SCANLINE = 5,
258     SVGA_CMD_DEFINE_PIXMAP = 6,
259     SVGA_CMD_DEFINE_PIXMAP_SCANLINE = 7,
260     SVGA_CMD_RECT_BITMAP_FILL = 8,
261     SVGA_CMD_RECT_PIXMAP_FILL = 9,
262     SVGA_CMD_RECT_BITMAP_COPY = 10,
263     SVGA_CMD_RECT_PIXMAP_COPY = 11,
264     SVGA_CMD_FREE_OBJECT = 12,
265     SVGA_CMD_RECT_ROP_FILL = 13,
266     SVGA_CMD_RECT_ROP_COPY = 14,
267     SVGA_CMD_RECT_ROP_BITMAP_FILL = 15,
268     SVGA_CMD_RECT_ROP_PIXMAP_FILL = 16,
269     SVGA_CMD_RECT_ROP_BITMAP_COPY = 17,
270     SVGA_CMD_RECT_ROP_PIXMAP_COPY = 18,
271     SVGA_CMD_DEFINE_CURSOR = 19,
272     SVGA_CMD_DISPLAY_CURSOR = 20,
273     SVGA_CMD_MOVE_CURSOR = 21,
274     SVGA_CMD_DEFINE_ALPHA_CURSOR = 22,
275     SVGA_CMD_DRAW_GLYPH = 23,
276     SVGA_CMD_DRAW_GLYPH_CLIPPED = 24,
277     SVGA_CMD_UPDATE_VERBOSE = 25,
278     SVGA_CMD_SURFACE_FILL = 26,
279     SVGA_CMD_SURFACE_COPY = 27,
280     SVGA_CMD_SURFACE_ALPHA_BLEND = 28,
281     SVGA_CMD_FRONT_ROP_FILL = 29,
282     SVGA_CMD_FENCE = 30,
283 };
284 
285 /* Legal values for the SVGA_REG_CURSOR_ON register in cursor bypass mode */
286 enum {
287     SVGA_CURSOR_ON_HIDE = 0,
288     SVGA_CURSOR_ON_SHOW = 1,
289     SVGA_CURSOR_ON_REMOVE_FROM_FB = 2,
290     SVGA_CURSOR_ON_RESTORE_TO_FB = 3,
291 };
292 
293 static inline void vmsvga_update_rect(struct vmsvga_state_s *s,
294                 int x, int y, int w, int h)
295 {
296     DisplaySurface *surface = qemu_console_surface(s->vga.con);
297     int line;
298     int bypl;
299     int width;
300     int start;
301     uint8_t *src;
302     uint8_t *dst;
303 
304     if (x < 0) {
305         fprintf(stderr, "%s: update x was < 0 (%d)\n", __func__, x);
306         w += x;
307         x = 0;
308     }
309     if (w < 0) {
310         fprintf(stderr, "%s: update w was < 0 (%d)\n", __func__, w);
311         w = 0;
312     }
313     if (x + w > surface_width(surface)) {
314         fprintf(stderr, "%s: update width too large x: %d, w: %d\n",
315                 __func__, x, w);
316         x = MIN(x, surface_width(surface));
317         w = surface_width(surface) - x;
318     }
319 
320     if (y < 0) {
321         fprintf(stderr, "%s: update y was < 0 (%d)\n",  __func__, y);
322         h += y;
323         y = 0;
324     }
325     if (h < 0) {
326         fprintf(stderr, "%s: update h was < 0 (%d)\n",  __func__, h);
327         h = 0;
328     }
329     if (y + h > surface_height(surface)) {
330         fprintf(stderr, "%s: update height too large y: %d, h: %d\n",
331                 __func__, y, h);
332         y = MIN(y, surface_height(surface));
333         h = surface_height(surface) - y;
334     }
335 
336     bypl = surface_stride(surface);
337     width = surface_bytes_per_pixel(surface) * w;
338     start = surface_bytes_per_pixel(surface) * x + bypl * y;
339     src = s->vga.vram_ptr + start;
340     dst = surface_data(surface) + start;
341 
342     for (line = h; line > 0; line--, src += bypl, dst += bypl) {
343         memcpy(dst, src, width);
344     }
345     dpy_gfx_update(s->vga.con, x, y, w, h);
346 }
347 
348 static inline void vmsvga_update_rect_delayed(struct vmsvga_state_s *s,
349                 int x, int y, int w, int h)
350 {
351     struct vmsvga_rect_s *rect = &s->redraw_fifo[s->redraw_fifo_last++];
352 
353     s->redraw_fifo_last &= REDRAW_FIFO_LEN - 1;
354     rect->x = x;
355     rect->y = y;
356     rect->w = w;
357     rect->h = h;
358 }
359 
360 static inline void vmsvga_update_rect_flush(struct vmsvga_state_s *s)
361 {
362     struct vmsvga_rect_s *rect;
363 
364     if (s->invalidated) {
365         s->redraw_fifo_first = s->redraw_fifo_last;
366         return;
367     }
368     /* Overlapping region updates can be optimised out here - if someone
369      * knows a smart algorithm to do that, please share.  */
370     while (s->redraw_fifo_first != s->redraw_fifo_last) {
371         rect = &s->redraw_fifo[s->redraw_fifo_first++];
372         s->redraw_fifo_first &= REDRAW_FIFO_LEN - 1;
373         vmsvga_update_rect(s, rect->x, rect->y, rect->w, rect->h);
374     }
375 }
376 
377 #ifdef HW_RECT_ACCEL
378 static inline void vmsvga_copy_rect(struct vmsvga_state_s *s,
379                 int x0, int y0, int x1, int y1, int w, int h)
380 {
381     DisplaySurface *surface = qemu_console_surface(s->vga.con);
382     uint8_t *vram = s->vga.vram_ptr;
383     int bypl = surface_stride(surface);
384     int bypp = surface_bytes_per_pixel(surface);
385     int width = bypp * w;
386     int line = h;
387     uint8_t *ptr[2];
388 
389     if (y1 > y0) {
390         ptr[0] = vram + bypp * x0 + bypl * (y0 + h - 1);
391         ptr[1] = vram + bypp * x1 + bypl * (y1 + h - 1);
392         for (; line > 0; line --, ptr[0] -= bypl, ptr[1] -= bypl) {
393             memmove(ptr[1], ptr[0], width);
394         }
395     } else {
396         ptr[0] = vram + bypp * x0 + bypl * y0;
397         ptr[1] = vram + bypp * x1 + bypl * y1;
398         for (; line > 0; line --, ptr[0] += bypl, ptr[1] += bypl) {
399             memmove(ptr[1], ptr[0], width);
400         }
401     }
402 
403     vmsvga_update_rect_delayed(s, x1, y1, w, h);
404 }
405 #endif
406 
407 #ifdef HW_FILL_ACCEL
408 static inline void vmsvga_fill_rect(struct vmsvga_state_s *s,
409                 uint32_t c, int x, int y, int w, int h)
410 {
411     DisplaySurface *surface = qemu_console_surface(s->vga.con);
412     int bypl = surface_stride(surface);
413     int width = surface_bytes_per_pixel(surface) * w;
414     int line = h;
415     int column;
416     uint8_t *fst;
417     uint8_t *dst;
418     uint8_t *src;
419     uint8_t col[4];
420 
421     col[0] = c;
422     col[1] = c >> 8;
423     col[2] = c >> 16;
424     col[3] = c >> 24;
425 
426     fst = s->vga.vram_ptr + surface_bytes_per_pixel(surface) * x + bypl * y;
427 
428     if (line--) {
429         dst = fst;
430         src = col;
431         for (column = width; column > 0; column--) {
432             *(dst++) = *(src++);
433             if (src - col == surface_bytes_per_pixel(surface)) {
434                 src = col;
435             }
436         }
437         dst = fst;
438         for (; line > 0; line--) {
439             dst += bypl;
440             memcpy(dst, fst, width);
441         }
442     }
443 
444     vmsvga_update_rect_delayed(s, x, y, w, h);
445 }
446 #endif
447 
448 struct vmsvga_cursor_definition_s {
449     int width;
450     int height;
451     int id;
452     int bpp;
453     int hot_x;
454     int hot_y;
455     uint32_t mask[1024];
456     uint32_t image[4096];
457 };
458 
459 #define SVGA_BITMAP_SIZE(w, h)          ((((w) + 31) >> 5) * (h))
460 #define SVGA_PIXMAP_SIZE(w, h, bpp)     (((((w) * (bpp)) + 31) >> 5) * (h))
461 
462 #ifdef HW_MOUSE_ACCEL
463 static inline void vmsvga_cursor_define(struct vmsvga_state_s *s,
464                 struct vmsvga_cursor_definition_s *c)
465 {
466     QEMUCursor *qc;
467     int i, pixels;
468 
469     qc = cursor_alloc(c->width, c->height);
470     qc->hot_x = c->hot_x;
471     qc->hot_y = c->hot_y;
472     switch (c->bpp) {
473     case 1:
474         cursor_set_mono(qc, 0xffffff, 0x000000, (void *)c->image,
475                         1, (void *)c->mask);
476 #ifdef DEBUG
477         cursor_print_ascii_art(qc, "vmware/mono");
478 #endif
479         break;
480     case 32:
481         /* fill alpha channel from mask, set color to zero */
482         cursor_set_mono(qc, 0x000000, 0x000000, (void *)c->mask,
483                         1, (void *)c->mask);
484         /* add in rgb values */
485         pixels = c->width * c->height;
486         for (i = 0; i < pixels; i++) {
487             qc->data[i] |= c->image[i] & 0xffffff;
488         }
489 #ifdef DEBUG
490         cursor_print_ascii_art(qc, "vmware/32bit");
491 #endif
492         break;
493     default:
494         fprintf(stderr, "%s: unhandled bpp %d, using fallback cursor\n",
495                 __func__, c->bpp);
496         cursor_put(qc);
497         qc = cursor_builtin_left_ptr();
498     }
499 
500     dpy_cursor_define(s->vga.con, qc);
501     cursor_put(qc);
502 }
503 #endif
504 
505 #define CMD(f)  le32_to_cpu(s->cmd->f)
506 
507 static inline int vmsvga_fifo_length(struct vmsvga_state_s *s)
508 {
509     int num;
510 
511     if (!s->config || !s->enable) {
512         return 0;
513     }
514     num = CMD(next_cmd) - CMD(stop);
515     if (num < 0) {
516         num += CMD(max) - CMD(min);
517     }
518     return num >> 2;
519 }
520 
521 static inline uint32_t vmsvga_fifo_read_raw(struct vmsvga_state_s *s)
522 {
523     uint32_t cmd = s->fifo[CMD(stop) >> 2];
524 
525     s->cmd->stop = cpu_to_le32(CMD(stop) + 4);
526     if (CMD(stop) >= CMD(max)) {
527         s->cmd->stop = s->cmd->min;
528     }
529     return cmd;
530 }
531 
532 static inline uint32_t vmsvga_fifo_read(struct vmsvga_state_s *s)
533 {
534     return le32_to_cpu(vmsvga_fifo_read_raw(s));
535 }
536 
537 static void vmsvga_fifo_run(struct vmsvga_state_s *s)
538 {
539     uint32_t cmd, colour;
540     int args, len;
541     int x, y, dx, dy, width, height;
542     struct vmsvga_cursor_definition_s cursor;
543     uint32_t cmd_start;
544 
545     len = vmsvga_fifo_length(s);
546     while (len > 0) {
547         /* May need to go back to the start of the command if incomplete */
548         cmd_start = s->cmd->stop;
549 
550         switch (cmd = vmsvga_fifo_read(s)) {
551         case SVGA_CMD_UPDATE:
552         case SVGA_CMD_UPDATE_VERBOSE:
553             len -= 5;
554             if (len < 0) {
555                 goto rewind;
556             }
557 
558             x = vmsvga_fifo_read(s);
559             y = vmsvga_fifo_read(s);
560             width = vmsvga_fifo_read(s);
561             height = vmsvga_fifo_read(s);
562             vmsvga_update_rect_delayed(s, x, y, width, height);
563             break;
564 
565         case SVGA_CMD_RECT_FILL:
566             len -= 6;
567             if (len < 0) {
568                 goto rewind;
569             }
570 
571             colour = vmsvga_fifo_read(s);
572             x = vmsvga_fifo_read(s);
573             y = vmsvga_fifo_read(s);
574             width = vmsvga_fifo_read(s);
575             height = vmsvga_fifo_read(s);
576 #ifdef HW_FILL_ACCEL
577             vmsvga_fill_rect(s, colour, x, y, width, height);
578             break;
579 #else
580             args = 0;
581             goto badcmd;
582 #endif
583 
584         case SVGA_CMD_RECT_COPY:
585             len -= 7;
586             if (len < 0) {
587                 goto rewind;
588             }
589 
590             x = vmsvga_fifo_read(s);
591             y = vmsvga_fifo_read(s);
592             dx = vmsvga_fifo_read(s);
593             dy = vmsvga_fifo_read(s);
594             width = vmsvga_fifo_read(s);
595             height = vmsvga_fifo_read(s);
596 #ifdef HW_RECT_ACCEL
597             vmsvga_copy_rect(s, x, y, dx, dy, width, height);
598             break;
599 #else
600             args = 0;
601             goto badcmd;
602 #endif
603 
604         case SVGA_CMD_DEFINE_CURSOR:
605             len -= 8;
606             if (len < 0) {
607                 goto rewind;
608             }
609 
610             cursor.id = vmsvga_fifo_read(s);
611             cursor.hot_x = vmsvga_fifo_read(s);
612             cursor.hot_y = vmsvga_fifo_read(s);
613             cursor.width = x = vmsvga_fifo_read(s);
614             cursor.height = y = vmsvga_fifo_read(s);
615             vmsvga_fifo_read(s);
616             cursor.bpp = vmsvga_fifo_read(s);
617 
618             args = SVGA_BITMAP_SIZE(x, y) + SVGA_PIXMAP_SIZE(x, y, cursor.bpp);
619             if (SVGA_BITMAP_SIZE(x, y) > sizeof cursor.mask ||
620                 SVGA_PIXMAP_SIZE(x, y, cursor.bpp) > sizeof cursor.image) {
621                     goto badcmd;
622             }
623 
624             len -= args;
625             if (len < 0) {
626                 goto rewind;
627             }
628 
629             for (args = 0; args < SVGA_BITMAP_SIZE(x, y); args++) {
630                 cursor.mask[args] = vmsvga_fifo_read_raw(s);
631             }
632             for (args = 0; args < SVGA_PIXMAP_SIZE(x, y, cursor.bpp); args++) {
633                 cursor.image[args] = vmsvga_fifo_read_raw(s);
634             }
635 #ifdef HW_MOUSE_ACCEL
636             vmsvga_cursor_define(s, &cursor);
637             break;
638 #else
639             args = 0;
640             goto badcmd;
641 #endif
642 
643         /*
644          * Other commands that we at least know the number of arguments
645          * for so we can avoid FIFO desync if driver uses them illegally.
646          */
647         case SVGA_CMD_DEFINE_ALPHA_CURSOR:
648             len -= 6;
649             if (len < 0) {
650                 goto rewind;
651             }
652             vmsvga_fifo_read(s);
653             vmsvga_fifo_read(s);
654             vmsvga_fifo_read(s);
655             x = vmsvga_fifo_read(s);
656             y = vmsvga_fifo_read(s);
657             args = x * y;
658             goto badcmd;
659         case SVGA_CMD_RECT_ROP_FILL:
660             args = 6;
661             goto badcmd;
662         case SVGA_CMD_RECT_ROP_COPY:
663             args = 7;
664             goto badcmd;
665         case SVGA_CMD_DRAW_GLYPH_CLIPPED:
666             len -= 4;
667             if (len < 0) {
668                 goto rewind;
669             }
670             vmsvga_fifo_read(s);
671             vmsvga_fifo_read(s);
672             args = 7 + (vmsvga_fifo_read(s) >> 2);
673             goto badcmd;
674         case SVGA_CMD_SURFACE_ALPHA_BLEND:
675             args = 12;
676             goto badcmd;
677 
678         /*
679          * Other commands that are not listed as depending on any
680          * CAPABILITIES bits, but are not described in the README either.
681          */
682         case SVGA_CMD_SURFACE_FILL:
683         case SVGA_CMD_SURFACE_COPY:
684         case SVGA_CMD_FRONT_ROP_FILL:
685         case SVGA_CMD_FENCE:
686         case SVGA_CMD_INVALID_CMD:
687             break; /* Nop */
688 
689         default:
690             args = 0;
691         badcmd:
692             len -= args;
693             if (len < 0) {
694                 goto rewind;
695             }
696             while (args--) {
697                 vmsvga_fifo_read(s);
698             }
699             printf("%s: Unknown command 0x%02x in SVGA command FIFO\n",
700                    __func__, cmd);
701             break;
702 
703         rewind:
704             s->cmd->stop = cmd_start;
705             break;
706         }
707     }
708 
709     s->syncing = 0;
710 }
711 
712 static uint32_t vmsvga_index_read(void *opaque, uint32_t address)
713 {
714     struct vmsvga_state_s *s = opaque;
715 
716     return s->index;
717 }
718 
719 static void vmsvga_index_write(void *opaque, uint32_t address, uint32_t index)
720 {
721     struct vmsvga_state_s *s = opaque;
722 
723     s->index = index;
724 }
725 
726 static uint32_t vmsvga_value_read(void *opaque, uint32_t address)
727 {
728     uint32_t caps;
729     struct vmsvga_state_s *s = opaque;
730     DisplaySurface *surface = qemu_console_surface(s->vga.con);
731     PixelFormat pf;
732     uint32_t ret;
733 
734     switch (s->index) {
735     case SVGA_REG_ID:
736         ret = s->svgaid;
737         break;
738 
739     case SVGA_REG_ENABLE:
740         ret = s->enable;
741         break;
742 
743     case SVGA_REG_WIDTH:
744         ret = s->new_width ? s->new_width : surface_width(surface);
745         break;
746 
747     case SVGA_REG_HEIGHT:
748         ret = s->new_height ? s->new_height : surface_height(surface);
749         break;
750 
751     case SVGA_REG_MAX_WIDTH:
752         ret = SVGA_MAX_WIDTH;
753         break;
754 
755     case SVGA_REG_MAX_HEIGHT:
756         ret = SVGA_MAX_HEIGHT;
757         break;
758 
759     case SVGA_REG_DEPTH:
760         ret = (s->new_depth == 32) ? 24 : s->new_depth;
761         break;
762 
763     case SVGA_REG_BITS_PER_PIXEL:
764     case SVGA_REG_HOST_BITS_PER_PIXEL:
765         ret = s->new_depth;
766         break;
767 
768     case SVGA_REG_PSEUDOCOLOR:
769         ret = 0x0;
770         break;
771 
772     case SVGA_REG_RED_MASK:
773         pf = qemu_default_pixelformat(s->new_depth);
774         ret = pf.rmask;
775         break;
776 
777     case SVGA_REG_GREEN_MASK:
778         pf = qemu_default_pixelformat(s->new_depth);
779         ret = pf.gmask;
780         break;
781 
782     case SVGA_REG_BLUE_MASK:
783         pf = qemu_default_pixelformat(s->new_depth);
784         ret = pf.bmask;
785         break;
786 
787     case SVGA_REG_BYTES_PER_LINE:
788         if (s->new_width) {
789             ret = (s->new_depth * s->new_width) / 8;
790         } else {
791             ret = surface_stride(surface);
792         }
793         break;
794 
795     case SVGA_REG_FB_START: {
796         struct pci_vmsvga_state_s *pci_vmsvga
797             = container_of(s, struct pci_vmsvga_state_s, chip);
798         ret = pci_get_bar_addr(PCI_DEVICE(pci_vmsvga), 1);
799         break;
800     }
801 
802     case SVGA_REG_FB_OFFSET:
803         ret = 0x0;
804         break;
805 
806     case SVGA_REG_VRAM_SIZE:
807         ret = s->vga.vram_size; /* No physical VRAM besides the framebuffer */
808         break;
809 
810     case SVGA_REG_FB_SIZE:
811         ret = s->vga.vram_size;
812         break;
813 
814     case SVGA_REG_CAPABILITIES:
815         caps = SVGA_CAP_NONE;
816 #ifdef HW_RECT_ACCEL
817         caps |= SVGA_CAP_RECT_COPY;
818 #endif
819 #ifdef HW_FILL_ACCEL
820         caps |= SVGA_CAP_RECT_FILL;
821 #endif
822 #ifdef HW_MOUSE_ACCEL
823         if (dpy_cursor_define_supported(s->vga.con)) {
824             caps |= SVGA_CAP_CURSOR | SVGA_CAP_CURSOR_BYPASS_2 |
825                     SVGA_CAP_CURSOR_BYPASS;
826         }
827 #endif
828         ret = caps;
829         break;
830 
831     case SVGA_REG_MEM_START: {
832         struct pci_vmsvga_state_s *pci_vmsvga
833             = container_of(s, struct pci_vmsvga_state_s, chip);
834         ret = pci_get_bar_addr(PCI_DEVICE(pci_vmsvga), 2);
835         break;
836     }
837 
838     case SVGA_REG_MEM_SIZE:
839         ret = s->fifo_size;
840         break;
841 
842     case SVGA_REG_CONFIG_DONE:
843         ret = s->config;
844         break;
845 
846     case SVGA_REG_SYNC:
847     case SVGA_REG_BUSY:
848         ret = s->syncing;
849         break;
850 
851     case SVGA_REG_GUEST_ID:
852         ret = s->guest;
853         break;
854 
855     case SVGA_REG_CURSOR_ID:
856         ret = s->cursor.id;
857         break;
858 
859     case SVGA_REG_CURSOR_X:
860         ret = s->cursor.x;
861         break;
862 
863     case SVGA_REG_CURSOR_Y:
864         ret = s->cursor.x;
865         break;
866 
867     case SVGA_REG_CURSOR_ON:
868         ret = s->cursor.on;
869         break;
870 
871     case SVGA_REG_SCRATCH_SIZE:
872         ret = s->scratch_size;
873         break;
874 
875     case SVGA_REG_MEM_REGS:
876     case SVGA_REG_NUM_DISPLAYS:
877     case SVGA_REG_PITCHLOCK:
878     case SVGA_PALETTE_BASE ... SVGA_PALETTE_END:
879         ret = 0;
880         break;
881 
882     default:
883         if (s->index >= SVGA_SCRATCH_BASE &&
884             s->index < SVGA_SCRATCH_BASE + s->scratch_size) {
885             ret = s->scratch[s->index - SVGA_SCRATCH_BASE];
886             break;
887         }
888         printf("%s: Bad register %02x\n", __func__, s->index);
889         ret = 0;
890         break;
891     }
892 
893     if (s->index >= SVGA_SCRATCH_BASE) {
894         trace_vmware_scratch_read(s->index, ret);
895     } else if (s->index >= SVGA_PALETTE_BASE) {
896         trace_vmware_palette_read(s->index, ret);
897     } else {
898         trace_vmware_value_read(s->index, ret);
899     }
900     return ret;
901 }
902 
903 static void vmsvga_value_write(void *opaque, uint32_t address, uint32_t value)
904 {
905     struct vmsvga_state_s *s = opaque;
906 
907     if (s->index >= SVGA_SCRATCH_BASE) {
908         trace_vmware_scratch_write(s->index, value);
909     } else if (s->index >= SVGA_PALETTE_BASE) {
910         trace_vmware_palette_write(s->index, value);
911     } else {
912         trace_vmware_value_write(s->index, value);
913     }
914     switch (s->index) {
915     case SVGA_REG_ID:
916         if (value == SVGA_ID_2 || value == SVGA_ID_1 || value == SVGA_ID_0) {
917             s->svgaid = value;
918         }
919         break;
920 
921     case SVGA_REG_ENABLE:
922         s->enable = !!value;
923         s->invalidated = 1;
924         s->vga.hw_ops->invalidate(&s->vga);
925         if (s->enable && s->config) {
926             vga_dirty_log_stop(&s->vga);
927         } else {
928             vga_dirty_log_start(&s->vga);
929         }
930         break;
931 
932     case SVGA_REG_WIDTH:
933         if (value <= SVGA_MAX_WIDTH) {
934             s->new_width = value;
935             s->invalidated = 1;
936         } else {
937             printf("%s: Bad width: %i\n", __func__, value);
938         }
939         break;
940 
941     case SVGA_REG_HEIGHT:
942         if (value <= SVGA_MAX_HEIGHT) {
943             s->new_height = value;
944             s->invalidated = 1;
945         } else {
946             printf("%s: Bad height: %i\n", __func__, value);
947         }
948         break;
949 
950     case SVGA_REG_BITS_PER_PIXEL:
951         if (value != 32) {
952             printf("%s: Bad bits per pixel: %i bits\n", __func__, value);
953             s->config = 0;
954             s->invalidated = 1;
955         }
956         break;
957 
958     case SVGA_REG_CONFIG_DONE:
959         if (value) {
960             s->fifo = (uint32_t *) s->fifo_ptr;
961             /* Check range and alignment.  */
962             if ((CMD(min) | CMD(max) | CMD(next_cmd) | CMD(stop)) & 3) {
963                 break;
964             }
965             if (CMD(min) < (uint8_t *) s->cmd->fifo - (uint8_t *) s->fifo) {
966                 break;
967             }
968             if (CMD(max) > SVGA_FIFO_SIZE) {
969                 break;
970             }
971             if (CMD(max) < CMD(min) + 10 * 1024) {
972                 break;
973             }
974             vga_dirty_log_stop(&s->vga);
975         }
976         s->config = !!value;
977         break;
978 
979     case SVGA_REG_SYNC:
980         s->syncing = 1;
981         vmsvga_fifo_run(s); /* Or should we just wait for update_display? */
982         break;
983 
984     case SVGA_REG_GUEST_ID:
985         s->guest = value;
986 #ifdef VERBOSE
987         if (value >= GUEST_OS_BASE && value < GUEST_OS_BASE +
988             ARRAY_SIZE(vmsvga_guest_id)) {
989             printf("%s: guest runs %s.\n", __func__,
990                    vmsvga_guest_id[value - GUEST_OS_BASE]);
991         }
992 #endif
993         break;
994 
995     case SVGA_REG_CURSOR_ID:
996         s->cursor.id = value;
997         break;
998 
999     case SVGA_REG_CURSOR_X:
1000         s->cursor.x = value;
1001         break;
1002 
1003     case SVGA_REG_CURSOR_Y:
1004         s->cursor.y = value;
1005         break;
1006 
1007     case SVGA_REG_CURSOR_ON:
1008         s->cursor.on |= (value == SVGA_CURSOR_ON_SHOW);
1009         s->cursor.on &= (value != SVGA_CURSOR_ON_HIDE);
1010 #ifdef HW_MOUSE_ACCEL
1011         if (value <= SVGA_CURSOR_ON_SHOW) {
1012             dpy_mouse_set(s->vga.con, s->cursor.x, s->cursor.y, s->cursor.on);
1013         }
1014 #endif
1015         break;
1016 
1017     case SVGA_REG_DEPTH:
1018     case SVGA_REG_MEM_REGS:
1019     case SVGA_REG_NUM_DISPLAYS:
1020     case SVGA_REG_PITCHLOCK:
1021     case SVGA_PALETTE_BASE ... SVGA_PALETTE_END:
1022         break;
1023 
1024     default:
1025         if (s->index >= SVGA_SCRATCH_BASE &&
1026                 s->index < SVGA_SCRATCH_BASE + s->scratch_size) {
1027             s->scratch[s->index - SVGA_SCRATCH_BASE] = value;
1028             break;
1029         }
1030         printf("%s: Bad register %02x\n", __func__, s->index);
1031     }
1032 }
1033 
1034 static uint32_t vmsvga_bios_read(void *opaque, uint32_t address)
1035 {
1036     printf("%s: what are we supposed to return?\n", __func__);
1037     return 0xcafe;
1038 }
1039 
1040 static void vmsvga_bios_write(void *opaque, uint32_t address, uint32_t data)
1041 {
1042     printf("%s: what are we supposed to do with (%08x)?\n", __func__, data);
1043 }
1044 
1045 static inline void vmsvga_check_size(struct vmsvga_state_s *s)
1046 {
1047     DisplaySurface *surface = qemu_console_surface(s->vga.con);
1048 
1049     if (s->new_width != surface_width(surface) ||
1050         s->new_height != surface_height(surface) ||
1051         s->new_depth != surface_bits_per_pixel(surface)) {
1052         int stride = (s->new_depth * s->new_width) / 8;
1053         trace_vmware_setmode(s->new_width, s->new_height, s->new_depth);
1054         surface = qemu_create_displaysurface_from(s->new_width, s->new_height,
1055                                                   s->new_depth, stride,
1056                                                   s->vga.vram_ptr, false);
1057         dpy_gfx_replace_surface(s->vga.con, surface);
1058         s->invalidated = 1;
1059     }
1060 }
1061 
1062 static void vmsvga_update_display(void *opaque)
1063 {
1064     struct vmsvga_state_s *s = opaque;
1065     DisplaySurface *surface;
1066     bool dirty = false;
1067 
1068     if (!s->enable) {
1069         s->vga.hw_ops->gfx_update(&s->vga);
1070         return;
1071     }
1072 
1073     vmsvga_check_size(s);
1074     surface = qemu_console_surface(s->vga.con);
1075 
1076     vmsvga_fifo_run(s);
1077     vmsvga_update_rect_flush(s);
1078 
1079     /*
1080      * Is it more efficient to look at vram VGA-dirty bits or wait
1081      * for the driver to issue SVGA_CMD_UPDATE?
1082      */
1083     if (memory_region_is_logging(&s->vga.vram)) {
1084         vga_sync_dirty_bitmap(&s->vga);
1085         dirty = memory_region_get_dirty(&s->vga.vram, 0,
1086             surface_stride(surface) * surface_height(surface),
1087             DIRTY_MEMORY_VGA);
1088     }
1089     if (s->invalidated || dirty) {
1090         s->invalidated = 0;
1091         dpy_gfx_update(s->vga.con, 0, 0,
1092                    surface_width(surface), surface_height(surface));
1093     }
1094     if (dirty) {
1095         memory_region_reset_dirty(&s->vga.vram, 0,
1096             surface_stride(surface) * surface_height(surface),
1097             DIRTY_MEMORY_VGA);
1098     }
1099 }
1100 
1101 static void vmsvga_reset(DeviceState *dev)
1102 {
1103     struct pci_vmsvga_state_s *pci = VMWARE_SVGA(dev);
1104     struct vmsvga_state_s *s = &pci->chip;
1105 
1106     s->index = 0;
1107     s->enable = 0;
1108     s->config = 0;
1109     s->svgaid = SVGA_ID;
1110     s->cursor.on = 0;
1111     s->redraw_fifo_first = 0;
1112     s->redraw_fifo_last = 0;
1113     s->syncing = 0;
1114 
1115     vga_dirty_log_start(&s->vga);
1116 }
1117 
1118 static void vmsvga_invalidate_display(void *opaque)
1119 {
1120     struct vmsvga_state_s *s = opaque;
1121     if (!s->enable) {
1122         s->vga.hw_ops->invalidate(&s->vga);
1123         return;
1124     }
1125 
1126     s->invalidated = 1;
1127 }
1128 
1129 static void vmsvga_text_update(void *opaque, console_ch_t *chardata)
1130 {
1131     struct vmsvga_state_s *s = opaque;
1132 
1133     if (s->vga.hw_ops->text_update) {
1134         s->vga.hw_ops->text_update(&s->vga, chardata);
1135     }
1136 }
1137 
1138 static int vmsvga_post_load(void *opaque, int version_id)
1139 {
1140     struct vmsvga_state_s *s = opaque;
1141 
1142     s->invalidated = 1;
1143     if (s->config) {
1144         s->fifo = (uint32_t *) s->fifo_ptr;
1145     }
1146     return 0;
1147 }
1148 
1149 static const VMStateDescription vmstate_vmware_vga_internal = {
1150     .name = "vmware_vga_internal",
1151     .version_id = 0,
1152     .minimum_version_id = 0,
1153     .minimum_version_id_old = 0,
1154     .post_load = vmsvga_post_load,
1155     .fields      = (VMStateField[]) {
1156         VMSTATE_INT32_EQUAL(new_depth, struct vmsvga_state_s),
1157         VMSTATE_INT32(enable, struct vmsvga_state_s),
1158         VMSTATE_INT32(config, struct vmsvga_state_s),
1159         VMSTATE_INT32(cursor.id, struct vmsvga_state_s),
1160         VMSTATE_INT32(cursor.x, struct vmsvga_state_s),
1161         VMSTATE_INT32(cursor.y, struct vmsvga_state_s),
1162         VMSTATE_INT32(cursor.on, struct vmsvga_state_s),
1163         VMSTATE_INT32(index, struct vmsvga_state_s),
1164         VMSTATE_VARRAY_INT32(scratch, struct vmsvga_state_s,
1165                              scratch_size, 0, vmstate_info_uint32, uint32_t),
1166         VMSTATE_INT32(new_width, struct vmsvga_state_s),
1167         VMSTATE_INT32(new_height, struct vmsvga_state_s),
1168         VMSTATE_UINT32(guest, struct vmsvga_state_s),
1169         VMSTATE_UINT32(svgaid, struct vmsvga_state_s),
1170         VMSTATE_INT32(syncing, struct vmsvga_state_s),
1171         VMSTATE_UNUSED(4), /* was fb_size */
1172         VMSTATE_END_OF_LIST()
1173     }
1174 };
1175 
1176 static const VMStateDescription vmstate_vmware_vga = {
1177     .name = "vmware_vga",
1178     .version_id = 0,
1179     .minimum_version_id = 0,
1180     .minimum_version_id_old = 0,
1181     .fields      = (VMStateField[]) {
1182         VMSTATE_PCI_DEVICE(parent_obj, struct pci_vmsvga_state_s),
1183         VMSTATE_STRUCT(chip, struct pci_vmsvga_state_s, 0,
1184                        vmstate_vmware_vga_internal, struct vmsvga_state_s),
1185         VMSTATE_END_OF_LIST()
1186     }
1187 };
1188 
1189 static const GraphicHwOps vmsvga_ops = {
1190     .invalidate  = vmsvga_invalidate_display,
1191     .gfx_update  = vmsvga_update_display,
1192     .text_update = vmsvga_text_update,
1193 };
1194 
1195 static void vmsvga_init(DeviceState *dev, struct vmsvga_state_s *s,
1196                         MemoryRegion *address_space, MemoryRegion *io)
1197 {
1198     s->scratch_size = SVGA_SCRATCH_SIZE;
1199     s->scratch = g_malloc(s->scratch_size * 4);
1200 
1201     s->vga.con = graphic_console_init(dev, &vmsvga_ops, s);
1202 
1203     s->fifo_size = SVGA_FIFO_SIZE;
1204     memory_region_init_ram(&s->fifo_ram, NULL, "vmsvga.fifo", s->fifo_size);
1205     vmstate_register_ram_global(&s->fifo_ram);
1206     s->fifo_ptr = memory_region_get_ram_ptr(&s->fifo_ram);
1207 
1208     vga_common_init(&s->vga, OBJECT(dev));
1209     vga_init(&s->vga, OBJECT(dev), address_space, io, true);
1210     vmstate_register(NULL, 0, &vmstate_vga_common, &s->vga);
1211     s->new_depth = 32;
1212 }
1213 
1214 static uint64_t vmsvga_io_read(void *opaque, hwaddr addr, unsigned size)
1215 {
1216     struct vmsvga_state_s *s = opaque;
1217 
1218     switch (addr) {
1219     case SVGA_IO_MUL * SVGA_INDEX_PORT: return vmsvga_index_read(s, addr);
1220     case SVGA_IO_MUL * SVGA_VALUE_PORT: return vmsvga_value_read(s, addr);
1221     case SVGA_IO_MUL * SVGA_BIOS_PORT: return vmsvga_bios_read(s, addr);
1222     default: return -1u;
1223     }
1224 }
1225 
1226 static void vmsvga_io_write(void *opaque, hwaddr addr,
1227                             uint64_t data, unsigned size)
1228 {
1229     struct vmsvga_state_s *s = opaque;
1230 
1231     switch (addr) {
1232     case SVGA_IO_MUL * SVGA_INDEX_PORT:
1233         vmsvga_index_write(s, addr, data);
1234         break;
1235     case SVGA_IO_MUL * SVGA_VALUE_PORT:
1236         vmsvga_value_write(s, addr, data);
1237         break;
1238     case SVGA_IO_MUL * SVGA_BIOS_PORT:
1239         vmsvga_bios_write(s, addr, data);
1240         break;
1241     }
1242 }
1243 
1244 static const MemoryRegionOps vmsvga_io_ops = {
1245     .read = vmsvga_io_read,
1246     .write = vmsvga_io_write,
1247     .endianness = DEVICE_LITTLE_ENDIAN,
1248     .valid = {
1249         .min_access_size = 4,
1250         .max_access_size = 4,
1251         .unaligned = true,
1252     },
1253     .impl = {
1254         .unaligned = true,
1255     },
1256 };
1257 
1258 static int pci_vmsvga_initfn(PCIDevice *dev)
1259 {
1260     struct pci_vmsvga_state_s *s = VMWARE_SVGA(dev);
1261 
1262     dev->config[PCI_CACHE_LINE_SIZE] = 0x08;
1263     dev->config[PCI_LATENCY_TIMER] = 0x40;
1264     dev->config[PCI_INTERRUPT_LINE] = 0xff;          /* End */
1265 
1266     memory_region_init_io(&s->io_bar, NULL, &vmsvga_io_ops, &s->chip,
1267                           "vmsvga-io", 0x10);
1268     memory_region_set_flush_coalesced(&s->io_bar);
1269     pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io_bar);
1270 
1271     vmsvga_init(DEVICE(dev), &s->chip,
1272                 pci_address_space(dev), pci_address_space_io(dev));
1273 
1274     pci_register_bar(dev, 1, PCI_BASE_ADDRESS_MEM_PREFETCH,
1275                      &s->chip.vga.vram);
1276     pci_register_bar(dev, 2, PCI_BASE_ADDRESS_MEM_PREFETCH,
1277                      &s->chip.fifo_ram);
1278 
1279     if (!dev->rom_bar) {
1280         /* compatibility with pc-0.13 and older */
1281         vga_init_vbe(&s->chip.vga, OBJECT(dev), pci_address_space(dev));
1282     }
1283 
1284     return 0;
1285 }
1286 
1287 static Property vga_vmware_properties[] = {
1288     DEFINE_PROP_UINT32("vgamem_mb", struct pci_vmsvga_state_s,
1289                        chip.vga.vram_size_mb, 16),
1290     DEFINE_PROP_END_OF_LIST(),
1291 };
1292 
1293 static void vmsvga_class_init(ObjectClass *klass, void *data)
1294 {
1295     DeviceClass *dc = DEVICE_CLASS(klass);
1296     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1297 
1298     k->no_hotplug = 1;
1299     k->init = pci_vmsvga_initfn;
1300     k->romfile = "vgabios-vmware.bin";
1301     k->vendor_id = PCI_VENDOR_ID_VMWARE;
1302     k->device_id = SVGA_PCI_DEVICE_ID;
1303     k->class_id = PCI_CLASS_DISPLAY_VGA;
1304     k->subsystem_vendor_id = PCI_VENDOR_ID_VMWARE;
1305     k->subsystem_id = SVGA_PCI_DEVICE_ID;
1306     dc->reset = vmsvga_reset;
1307     dc->vmsd = &vmstate_vmware_vga;
1308     dc->props = vga_vmware_properties;
1309     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
1310 }
1311 
1312 static const TypeInfo vmsvga_info = {
1313     .name          = TYPE_VMWARE_SVGA,
1314     .parent        = TYPE_PCI_DEVICE,
1315     .instance_size = sizeof(struct pci_vmsvga_state_s),
1316     .class_init    = vmsvga_class_init,
1317 };
1318 
1319 static void vmsvga_register_types(void)
1320 {
1321     type_register_static(&vmsvga_info);
1322 }
1323 
1324 type_init(vmsvga_register_types)
1325