1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
|
/*****************************************************************************
Copyright (c) 2024 Jaroslav Hensl <emulator@emulace.cz>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*****************************************************************************/
/*
* Code for QEMU is inspired by boxvmini.asm by Philip Kelley
*/
#ifndef VXD32
#error VXD32 not defined!
#endif
#define VXD_MAIN
#ifndef SVGA
# ifndef VESA
# define VBE
# endif
#endif
#include "winhack.h"
#include "vmm.h"
#include "vxd.h"
#include "vxd_lib.h"
#include "3d_accel.h"
#include "vxd_vdd.h"
#ifdef SVGA
# include "svga_all.h"
# include "vxd_svga.h"
#endif
#include "version.h"
#include "code32.h"
void VXD_control();
void VXD_API_entry();
void __stdcall Device_Init_proc(DWORD VM);
void __stdcall Device_Exit_proc(DWORD VM);
void __stdcall Device_Init_Complete(DWORD VM);
void __stdcall win32_destroy_process_proc(DWORD pid);
#define SERVICE_TABLE_CNT (FBHDA__OVERLAY_UNLOCK+1)
extern DWORD service_table[SERVICE_TABLE_CNT];
/*
VXD structure
this variable must be in first address in code segment.
In other cases VXD isn't loadable (WLINK bug?)
*/
DDB VXD_DDB = {
NULL, // must be NULL
DDK_VERSION, // DDK_Version
VXD_DEVICE_ID, // Device ID
VXD_MAJOR_VER, // Major Version
VXD_MINOR_VER, // Minor Version
NULL,
VXD_DEVICE_NAME,
VDD_Init_Order,
(DWORD)VXD_control,
(DWORD)VXD_API_entry,
(DWORD)VXD_API_entry,
NULL,// CS:IP of API entry point
NULL,// CS:IP of API entry point
NULL,// Reference data from real mode
(DWORD)&service_table,// Pointer to service table
SERVICE_TABLE_CNT,// Number of services
NULL, // DDB_Win32_Service_Table
'Prev', //NULL, // prev
sizeof(DDB),
'Rsv1',
'Rsv2',
'Rsv3',
};
#include "vxd_strings.h"
DWORD *DispatchTable = 0;
DWORD DispatchTableLength = 0;
DWORD ThisVM = 0;
#ifdef QEMU
/**
* This is fix of broken screen when open DOS window
*
**/
void __declspec(naked) virtual_0x1ce()
{
/*
* AX/AL contains the value to be read or written on the port.
* EBX contains the handle of the VM accessing the port.
* ECX contains the direction (in/out) and size (byte/word) of the operation.
* EDX contains the port number, which for us will either be 1CEh or 1CFh.
*/
VxDCall(VDD, Get_VM_Info); // esi = result
_asm{
cmp edi, ThisVM ; Is the CRTC controlled by Windows?
jne _Virtual1CEPhysical ; If not, we should allow the I/O
cmp ebx, edi ; Is the calling VM Windows?
je _Virtual1CEPhysical ; If not, we should eat the I/O
ret
_Virtual1CEPhysical:
}
VxDJmp(VDD, Do_Physical_IO);
}
#endif /* QEMU */
/**
* VDD calls wrapers
**/
void VDD_Get_Mini_Dispatch_Table()
{
VxDCall(VDD, Get_Mini_Dispatch_Table);
_asm mov [DispatchTable],edi
_asm mov [DispatchTableLength],ecx
}
/**
* Control Handles
**/
void Sys_Critical_Init_proc()
{
// nop
}
DWORD __stdcall Device_IO_Control_proc(DWORD vmhandle, struct DIOCParams *params);
/*
* 32-bit DeviceIoControl ends here
*
*/
void __declspec(naked) Device_IO_Control_entry()
{
_asm {
push esi /* struct DIOCParams */
push ebx /* VMHandle */
call Device_IO_Control_proc
retn
}
}
void __stdcall print_ctrl(DWORD type)
{
dbg_printf("VXD_control: %d\n", type);
}
/*
* service module calls (init, exit, deviceIoControl, ...)
* clear carry if succes (this is always success)
*/
void __declspec(naked) VXD_control()
{
// eax = 0x00 - Sys Critical Init
// eax = 0x01 - sys dynamic init
// eax = 0x1B - dynamic init
// eax = 0x1C - dynamic exit
// eax = 0x23 - device IO control
_asm {
cmp eax,Sys_Critical_Init
jnz control_1
pushad
call Sys_Critical_Init_proc
popad
clc
ret
control_1:
cmp eax,Device_Init
jnz control_2
push ebx ; VM handle
call Device_Init_proc
popad
clc
ret
control_2:
cmp eax,Init_Complete
jnz control_3
pushad
push ebx ; VM handle
call Device_Init_Complete
popad
clc
ret
control_3:
cmp eax,Sys_Dynamic_Device_Init
jnz control_4
pushad
push ebx ; VM handle
call Device_Init_proc
popad
clc
ret
control_4:
cmp eax,W32_DEVICEIOCONTROL
jnz control_5
jmp Device_IO_Control_entry
control_5:
cmp eax,System_Exit
jnz control_6
pushad
push ebx ; VM handle
call Device_Exit_proc
popad
clc
ret
/*
https://www.codeproject.com/Articles/3874/The-Ultimate-Process-Thread-spy-for-Windows-9x
"You will find the definition of CREATE_PROCESS, but wont find how to get the
PID of a newly created process. For thread (CREATE_THREAD), the thread ID is
passed in EDI register, but for CREATE_PROCESS it's not there. At last, by
trial and error I found where it is, the PID value, it is in EDX reg."
*/
control_6:
cmp eax,DESTROY_PROCESS
jnz control_7
pushad
push edx ; PID
call win32_destroy_process_proc
popad
clc
ret
control_7:
; pushad
; push eax
; call print_ctrl
; popad
clc
ret
};
}
/* process V86/PM16 calls */
WORD __stdcall VXD_API_Proc(PCRS_32 state)
{
WORD rc = 0xFFFF;
WORD service = state->Client_EDX & 0xFFFF;
//dbg_printf("VXD_API_Proc, service: %X\n", service);
//Begin_Critical_Section(0);
switch(service)
{
case VXD_PM16_VERSION:
rc = (VXD_MAJOR_VER << 8) | VXD_MINOR_VER;
break;
case VXD_PM16_VMM_VERSION:
rc = Get_VMM_Version();
break;
case OP_FBHDA_SETUP:
{
DWORD dptr = (DWORD)FBHDA_setup();
if(dptr)
{
state->Client_ECX = dptr;
rc = 1;
}
break;
}
case OP_FBHDA_ACCESS_BEGIN:
FBHDA_access_begin(state->Client_ECX);
rc = 1;
break;
case OP_FBHDA_ACCESS_END:
FBHDA_access_end(state->Client_ECX);
rc = 1;
break;
case OP_FBHDA_ACCESS_RECT:
FBHDA_access_rect(state->Client_EBX, state->Client_ECX, state->Client_ESI, state->Client_EDI);
rc = 1;
break;
case OP_FBHDA_SWAP:
{
BOOL rs;
rs = FBHDA_swap(state->Client_ECX);
state->Client_ECX = (DWORD)rs;
rc = 1;
break;
}
case OP_FBHDA_CLEAN:
FBHDA_clean();
rc = 1;
break;
case OP_FBHDA_PALETTE_SET:
FBHDA_palette_set(state->Client_ECX & 0xFF, state->Client_EDI);
rc = 1;
break;
case OP_FBHDA_PALETTE_GET:
{
DWORD color;
color = FBHDA_palette_get(state->Client_ECX & 0xFF);
state->Client_EDI = color;
rc = 1;
break;
}
case OP_FBHDA_GAMMA_GET:
state->Client_ECX = FBHDA_gamma_get((void *)state->Client_EDI, state->Client_ECX);
rc = 1;
break;
case OP_FBHDA_GAMMA_SET:
state->Client_ECX = FBHDA_gamma_set((void *)state->Client_ESI, state->Client_ECX);
rc = 1;
break;
/* mouse */
case OP_MOUSE_LOAD:
state->Client_ECX = mouse_load();
rc = 1;
break;
case OP_MOUSE_BUFFER:
state->Client_ECX = (DWORD)mouse_buffer();
rc = 1;
break;
case OP_MOUSE_MOVE:
mouse_move(state->Client_ESI, state->Client_EDI);
rc = 1;
break;
case OP_MOUSE_SHOW:
mouse_show();
rc = 1;
break;
case OP_MOUSE_HIDE:
mouse_hide();
rc = 1;
break;
#ifdef SVGA
case OP_SVGA_VALID:
{
BOOL rs;
rs = SVGA_valid();
state->Client_ECX = (DWORD)rs;
rc = 1;
break;
}
case OP_SVGA_SETMODE:
{
BOOL rs;
Begin_Critical_Section(0);
rs = SVGA_setmode(state->Client_ESI, state->Client_EDI, state->Client_ECX);
End_Critical_Section();
state->Client_ECX = (DWORD)rs;
rc = 1;
break;
}
case OP_SVGA_VALIDMODE:
{
BOOL rs;
rs = SVGA_validmode(state->Client_ESI, state->Client_EDI, state->Client_ECX);
state->Client_ECX = (DWORD)rs;
rc = 1;
break;
}
case OP_SVGA_HW_ENABLE:
SVGA_HW_enable();
rc = 1;
break;
case OP_SVGA_HW_DISABLE:
SVGA_HW_disable();
rc = 1;
break;
#endif
#ifdef VBE
case OP_VBE_VALID:
{
BOOL rs;
rs = VBE_valid();
state->Client_ECX = (DWORD)rs;
rc = 1;
break;
}
case OP_VBE_SETMODE:
{
BOOL rs;
Begin_Critical_Section(0);
rs = VBE_setmode(state->Client_ESI, state->Client_EDI, state->Client_ECX);
End_Critical_Section();
state->Client_ECX = (DWORD)rs;
rc = 1;
break;
}
case OP_VBE_VALIDMODE:
{
BOOL rs;
rs = VBE_validmode(state->Client_ESI, state->Client_EDI, state->Client_ECX);
state->Client_ECX = (DWORD)rs;
rc = 1;
break;
}
#endif
}
if(rc == 0xFFFF)
{
state->Client_EFlags |= 0x1; // set carry
}
else
{
state->Client_EFlags &= 0xFFFFFFFEUL; // clear carry
}
//dbg_printf("VXD_API_Proc end\n");
//End_Critical_Section();
return rc;
}
/*
* Service calls from protected mode (usually 16 bit) and virtual 86 mode
* CPU state before call is already on stack (EBP points it).
* Converts the call to __stdcall and call 'VXD_API_Proc', result of this
* function is placed to saved AX register.
*
*/
void __declspec(naked) VXD_API_entry()
{
_asm {
push ebp
mov eax,cr3 ; TLB bug here? Looks like...
mov cr3,eax
call VXD_API_Proc
mov [ebp+1Ch], ax
retn
}
}
const char reg_path[] = "Software\\vmdisp9x";
extern DWORD gamma_quirk;
static void configure_FBHDA()
{
FBHDA_t *fbhda;
DWORD force_sw = 0;
DWORD force_qemu3dfx = 0;
int i;
char buf[32];
fbhda = FBHDA_setup();
if(fbhda)
{
DWORD size_mb;
RegReadConf(HKEY_LOCAL_MACHINE, reg_path, "FORCE_SOFTWARE", &force_sw);
RegReadConf(HKEY_LOCAL_MACHINE, reg_path, "FORCE_QEMU3DFX", &force_qemu3dfx);
RegReadConf(HKEY_LOCAL_MACHINE, reg_path, "GAMMA_QUIRK", &gamma_quirk);
for(i = 1; i < FBHA_OVERLAYS_MAX; i++)
{
char *ptr;
strcpy(buf, "OVERLAY_");
ptr = buf + strlen(buf);
if(i >= 10)
{
*ptr = '0' + (i/10);
ptr++;
}
*ptr = '0' + (i % 10);
ptr++;
*ptr = '\0';
strcat(buf, "_SIZE");
size_mb = 0;
RegReadConf(HKEY_LOCAL_MACHINE, reg_path, buf, &size_mb);
fbhda->overlays[i].size = size_mb*(1024*1024);
if(fbhda->overlays[i].size > 0)
{
fbhda->overlays_size += fbhda->overlays[i].size;
fbhda->overlays[i].ptr = ((BYTE*)fbhda->vram_pm32) + fbhda->vram_size - fbhda->overlays_size;
}
else
{
fbhda->overlays[i].ptr = 0;
}
dbg_printf("Overlay #%ld: %ld\n", i, fbhda->overlays[i].size);
}
if(force_sw)
{
fbhda->flags |= FB_FORCE_SOFTWARE;
}
if(force_qemu3dfx)
{
fbhda->flags |= FB_ACCEL_QEMU3DFX;
}
}
}
/* generate all entry pro VDD function */
#define VDDFUNC(_fnname, _procname) void __declspec(naked) _procname ## _entry() { \
_asm { push ebp }; \
_asm { call _procname ## _proc }; \
_asm { retn }; \
}
#define VDDNAKED(_fnname, _procname) void __declspec(naked) _procname ## _entry() { \
_asm { pushad }; \
_asm { mov eax, esp }; \
_asm { add eax, 32 }; \
_asm { push eax }; \
_asm { call _procname ## _proc }; \
_asm { popad }; \
_asm { retn }; \
}
#include "vxd_vdd_list.h"
#undef VDDFUNC
#undef VDDNAKED
#define VDDFUNC(id, procname) DispatchTable[id] = (DWORD)(procname ## _entry);
#define VDDNAKED VDDFUNC
/* init device and fill dispatch table */
void Device_Init_proc(DWORD VM)
{
Begin_Critical_Section(0);
dbg_printf(dbg_Device_Init_proc);
VMMCall(_Allocate_Device_CB_Area);
ThisVM = VM;
#ifdef SVGA
SVGA_init_hw();
#endif
#ifdef VBE
VBE_init_hw();
#endif
#ifdef QEMU
Install_IO_Handler(0x1ce, (DWORD)virtual_0x1ce);
Disable_Global_Trapping(0x1ce);
Install_IO_Handler(0x1cf, (DWORD)virtual_0x1ce);
Disable_Global_Trapping(0x1cf);
#endif
/* register miniVDD functions */
VDD_Get_Mini_Dispatch_Table();
if(DispatchTableLength >= 0x31)
{
#include "vxd_vdd_list.h"
}
configure_FBHDA();
End_Critical_Section();
}
#undef VDDFUNC
#undef VDDNAKED
static DWORD io_open_cnt = 0;
/* process user space (PM32, RING-3) call */
DWORD __stdcall Device_IO_Control_proc(DWORD vmhandle, struct DIOCParams *params)
{
DWORD *inBuf = (DWORD*)params->lpInBuffer;
DWORD *outBuf = (DWORD*)params->lpOutBuffer;
DWORD rc = 1;
//Begin_Critical_Section(0);
//dbg_printf("I%x\n", params->dwIoControlCode);
switch(params->dwIoControlCode)
{
/* DX */
case DIOC_OPEN:
dbg_printf("DIOC_OPEN\n");
io_open_cnt++;
rc = 0;
break;
case DIOC_CLOSEHANDLE:
io_open_cnt--;
#ifdef SVGA
if(io_open_cnt == 0)
{
// JH: too aggressive - cause problems
//dbg_printf("Zero reference, do ALL cleanup!\n");
//SVGA_AllProcessCleanup();
}
#endif
rc = 0;
break;
case OP_FBHDA_SETUP:
outBuf[0] = (DWORD)FBHDA_setup();
rc = 0;
break;
case OP_FBHDA_ACCESS_BEGIN:
FBHDA_access_begin(inBuf[0]);
rc = 0;
break;
case OP_FBHDA_ACCESS_END:
FBHDA_access_end(inBuf[0]);
rc = 0;
break;
case OP_FBHDA_ACCESS_RECT:
FBHDA_access_rect(inBuf[0], inBuf[1], inBuf[2], inBuf[3]);
rc = 0;
break;
case OP_FBHDA_SWAP:
outBuf[0] = FBHDA_swap(inBuf[0]);
rc = 0;
break;
case OP_FBHDA_CLEAN:
FBHDA_clean();
rc = 0;
break;
case OP_FBHDA_PALETTE_SET:
FBHDA_palette_set(inBuf[0], inBuf[1]);
rc = 0;
break;
case OP_FBHDA_PALETTE_GET:
outBuf[0] = FBHDA_palette_get(inBuf[0]);
rc = 0;
break;
case OP_FBHDA_OVERLAY_SETUP:
outBuf[0] = FBHDA_overlay_setup(inBuf[0], inBuf[1], inBuf[2], inBuf[3]);
rc = 0;
break;
case OP_FBHDA_OVERLAY_LOCK:
FBHDA_overlay_lock(inBuf[0], inBuf[1], inBuf[2], inBuf[3]);
rc = 0;
break;
case OP_FBHDA_OVERLAY_UNLOCK:
FBHDA_overlay_unlock(inBuf[0]);
rc = 0;
break;
#ifdef SVGA
case OP_SVGA_VALID:
outBuf[0] = SVGA_valid();
rc = 0;
break;
case OP_SVGA_CMB_ALLOC:
outBuf[0] = (DWORD)SVGA_CMB_alloc();
rc = 0;
break;
case OP_SVGA_CMB_FREE:
SVGA_CMB_free((DWORD*)inBuf[0]);
rc = 0;
break;
case OP_SVGA_CMB_SUBMIT:
{
SVGA_CMB_submit_io_t *inio = (SVGA_CMB_submit_io_t*)inBuf;
SVGA_CMB_status_t *status = (SVGA_CMB_status_t*)outBuf;
SVGA_CMB_submit(inio->cmb, inio->cmb_size, status, inio->flags, inio->DXCtxId);
rc = 0;
break;
}
case OP_SVGA_FENCE_GET:
outBuf[0] = SVGA_fence_get();
rc = 0;
break;
case OP_SVGA_FENCE_QUERY:
SVGA_fence_query(&outBuf[0], &outBuf[1]);
rc = 0;
break;
case OP_SVGA_FENCE_WAIT:
SVGA_fence_wait(inBuf[0]);
rc = 0;
break;
case OP_SVGA_REGION_CREATE:
{
SVGA_region_info_t *inio = (SVGA_region_info_t*)inBuf;
SVGA_region_info_t *outio = (SVGA_region_info_t*)outBuf;
if(outio != inio)
{
memcpy(outio, inio, sizeof(SVGA_region_info_t));
}
outio->address = NULL;
if(!SVGA_region_create(outio))
{
SVGA_flushcache();
SVGA_region_create(outio);
}
rc = 0;
break;
}
case OP_SVGA_REGION_FREE:
{
SVGA_region_info_t *inio = (SVGA_region_info_t*)inBuf;
SVGA_region_free(inio);
rc = 0;
break;
}
case OP_SVGA_QUERY:
outBuf[0] = SVGA_query(inBuf[0], inBuf[1]);
rc = 0;
break;
case OP_SVGA_QUERY_VECTOR:
SVGA_query_vector(inBuf[0], inBuf[1], inBuf[2], outBuf);
rc = 0;
break;
case OP_SVGA_DB_SETUP:
outBuf[0] = (DWORD)SVGA_DB_setup();
rc = 0;
break;
case OP_SVGA_OT_SETUP:
outBuf[0] = (DWORD)SVGA_OT_setup();
rc = 0;
break;
case OP_SVGA_FLUSHCACHE:
SVGA_flushcache();
rc = 0;
break;
case OP_SVGA_VXDCMD:
outBuf[0] = (DWORD)SVGA_vxdcmd(inBuf[0], inBuf[1]);
rc = 0;
break;
#ifdef DBGPRINT
/* export some mouse function for debuging */
case OP_MOUSE_MOVE:
mouse_move(inBuf[0], inBuf[1]);
rc = 0;
break;
case OP_MOUSE_SHOW:
mouse_show();
rc = 0;
break;
case OP_MOUSE_HIDE:
mouse_hide();
rc = 0;
break;
#endif /*DBGPRINT */
#endif /* SVGA */
default:
dbg_printf("DeviceIOControl: Unknown: %d\n", params->dwIoControlCode);
break;
}
//dbg_printf("IL\n");
//End_Critical_Section();
return rc;
}
void Device_Init_Complete(DWORD VM)
{
#ifdef QEMU
/*
* At Windows shutdown time, the display driver calls VDD_DRIVER_UNREGISTER,
* which calls our DisplayDriverDisabling callback, and soon thereafter
* does an INT 10h (AH=0) to mode 3 (and then 13) in V86 mode. However, the
* memory ranges for display memory are not always mapped!
*
* If the VGA ROM BIOS, during execution of such a set video mode call, tries to
* clear the screen, and the appropriate memory range isn't mapped, then we end
* up in a page fault handler, which I guess maps the memory and then resumes
* execution in V86 mode. But strangely, in QEMU, this fault & resume mechanism
* does not work with KVM or WHPX assist, at least on Intel. The machine hangs
* instead (I have not root caused why).
*
* We can dodge this problem by setting up real mappings up front.
*
* At entry, EBX contains a Windows VM handle.
*
*/
_PhysIntoV86(0xA0, VM, 0xA0, 16, 0);
_PhysIntoV86(0xB8, VM, 0xB8, 8, 0);
#endif
}
/* shutdown procedure */
void Device_Exit_proc(DWORD VM)
{
#ifdef SVGA
SVGA_HW_disable();
#endif
dbg_printf(dbg_destroy);
// TODO: free memory
}
static DWORD __stdcall service_get_ver()
{
return API_3DACCEL_VER;
}
static FBHDA_t *__stdcall service_setup()
{
return FBHDA_setup();
}
static DWORD __stdcall service_overlay_setup(DWORD overlay, DWORD width, DWORD height, DWORD bpp)
{
return FBHDA_overlay_setup(overlay, width, height, bpp);
}
static void __stdcall service_overlay_lock(DWORD left, DWORD top, DWORD right, DWORD bottom)
{
FBHDA_overlay_lock(left, top, right, bottom);
}
static void __stdcall service_overlay_unlock(DWORD flags)
{
FBHDA_overlay_unlock(flags);
}
DWORD service_table[SERVICE_TABLE_CNT] = {
(DWORD)&service_get_ver, // 0
(DWORD)&service_setup, // 1
0, // 2
0, // 3
0, // 4
0, // 5
0, // 6
0, // 7
0, // 8
(DWORD)&service_overlay_setup, // 9
(DWORD)&service_overlay_lock, // 10
(DWORD)&service_overlay_unlock, // 11
};
void __stdcall win32_destroy_process_proc(DWORD pid)
{
dbg_printf("DESTROY_PROCESS: %lX\n", pid);
#ifdef SVGA
SVGA_ProcessCleanup(pid);
#endif
}
|