2 * VMM VxD implementation
4 * Copyright 1998 Marcus Meissner
5 * Copyright 1998 Ulrich Weigand
6 * Copyright 1998 Patrik Stridvall
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 #include "wine/port.h"
33 #include "wine/debug.h"
35 WINE_DEFAULT_DEBUG_CHANNEL(vxd);
38 * VMM VxDCall service names are (mostly) taken from Stan Mitchell's
39 * "Inside the Windows 95 File System"
42 #define N_VMM_SERVICE 41
44 static const char * const VMM_Service_Name[N_VMM_SERVICE] =
46 "PageReserve", /* 0x0000 */
47 "PageCommit", /* 0x0001 */
48 "PageDecommit", /* 0x0002 */
49 "PagerRegister", /* 0x0003 */
50 "PagerQuery", /* 0x0004 */
51 "HeapAllocate", /* 0x0005 */
52 "ContextCreate", /* 0x0006 */
53 "ContextDestroy", /* 0x0007 */
54 "PageAttach", /* 0x0008 */
55 "PageFlush", /* 0x0009 */
56 "PageFree", /* 0x000A */
57 "ContextSwitch", /* 0x000B */
58 "HeapReAllocate", /* 0x000C */
59 "PageModifyPermissions", /* 0x000D */
60 "PageQuery", /* 0x000E */
61 "GetCurrentContext", /* 0x000F */
62 "HeapFree", /* 0x0010 */
63 "RegOpenKey", /* 0x0011 */
64 "RegCreateKey", /* 0x0012 */
65 "RegCloseKey", /* 0x0013 */
66 "RegDeleteKey", /* 0x0014 */
67 "RegSetValue", /* 0x0015 */
68 "RegDeleteValue", /* 0x0016 */
69 "RegQueryValue", /* 0x0017 */
70 "RegEnumKey", /* 0x0018 */
71 "RegEnumValue", /* 0x0019 */
72 "RegQueryValueEx", /* 0x001A */
73 "RegSetValueEx", /* 0x001B */
74 "RegFlushKey", /* 0x001C */
75 "RegQueryInfoKey", /* 0x001D */
76 "GetDemandPageInfo", /* 0x001E */
77 "BlockOnID", /* 0x001F */
78 "SignalID", /* 0x0020 */
79 "RegLoadKey", /* 0x0021 */
80 "RegUnLoadKey", /* 0x0022 */
81 "RegSaveKey", /* 0x0023 */
82 "RegRemapPreDefKey", /* 0x0024 */
83 "PageChangePager", /* 0x0025 */
84 "RegQueryMultipleValues", /* 0x0026 */
85 "RegReplaceKey", /* 0x0027 */
86 "<KERNEL32.101>" /* 0x0028 -- What does this do??? */
89 /* PageReserve arena values */
90 #define PR_PRIVATE 0x80000400 /* anywhere in private arena */
91 #define PR_SHARED 0x80060000 /* anywhere in shared arena */
92 #define PR_SYSTEM 0x80080000 /* anywhere in system arena */
94 /* PageReserve flags */
95 #define PR_FIXED 0x00000008 /* don't move during PageReAllocate */
96 #define PR_4MEG 0x00000001 /* allocate on 4mb boundary */
97 #define PR_STATIC 0x00000010 /* see PageReserve documentation */
99 /* PageCommit default pager handle values */
100 #define PD_ZEROINIT 0x00000001 /* swappable zero-initialized pages */
101 #define PD_NOINIT 0x00000002 /* swappable uninitialized pages */
102 #define PD_FIXEDZERO 0x00000003 /* fixed zero-initialized pages */
103 #define PD_FIXED 0x00000004 /* fixed uninitialized pages */
105 /* PageCommit flags */
106 #define PC_FIXED 0x00000008 /* pages are permanently locked */
107 #define PC_LOCKED 0x00000080 /* pages are made present and locked */
108 #define PC_LOCKEDIFDP 0x00000100 /* pages are locked if swap via DOS */
109 #define PC_WRITABLE 0x00020000 /* make the pages writable */
110 #define PC_USER 0x00040000 /* make the pages ring 3 accessible */
111 #define PC_INCR 0x40000000 /* increment "pagerdata" each page */
112 #define PC_PRESENT 0x80000000 /* make pages initially present */
113 #define PC_STATIC 0x20000000 /* allow commit in PR_STATIC object */
114 #define PC_DIRTY 0x08000000 /* make pages initially dirty */
115 #define PC_CACHEDIS 0x00100000 /* Allocate uncached pages - new for WDM */
116 #define PC_CACHEWT 0x00080000 /* Allocate write through cache pages - new for WDM */
117 #define PC_PAGEFLUSH 0x00008000 /* Touch device mapped pages on alloc - new for WDM */
119 /* PageCommitContig additional flags */
120 #define PCC_ZEROINIT 0x00000001 /* zero-initialize new pages */
121 #define PCC_NOLIN 0x10000000 /* don't map to any linear address */
124 /* Pop a DWORD from the 32-bit stack */
125 static inline DWORD stack32_pop( CONTEXT86 *context )
127 DWORD ret = *(DWORD *)context->Esp;
128 context->Esp += sizeof(DWORD);
133 /***********************************************************************
134 * VxDCall (VMM.VXD.@)
136 DWORD WINAPI VMM_VxDCall( DWORD service, CONTEXT86 *context )
140 switch ( LOWORD(service) )
142 case 0x0000: /* PageReserve */
146 DWORD psize = getpagesize();
147 ULONG page = (ULONG) stack32_pop( context );
148 ULONG npages = (ULONG) stack32_pop( context );
149 ULONG flags = (ULONG) stack32_pop( context );
151 TRACE("PageReserve: page: %08x, npages: %08x, flags: %08x partial stub!\n",
152 page, npages, flags );
154 if ( page == PR_SYSTEM ) {
155 ERR("Can't reserve ring 1 memory\n");
158 /* FIXME: This has to be handled separately for the separate
159 address-spaces we now have */
160 if ( page == PR_PRIVATE || page == PR_SHARED ) page = 0;
161 /* FIXME: Handle flags in some way */
162 address = (LPVOID )(page * psize);
163 ret = VirtualAlloc ( address, ( npages * psize ), MEM_RESERVE, 0 );
164 TRACE("PageReserve: returning: %p\n", ret );
171 case 0x0001: /* PageCommit */
176 DWORD psize = getpagesize();
177 ULONG page = (ULONG) stack32_pop( context );
178 ULONG npages = (ULONG) stack32_pop( context );
179 ULONG hpd = (ULONG) stack32_pop( context );
180 ULONG pagerdata = (ULONG) stack32_pop( context );
181 ULONG flags = (ULONG) stack32_pop( context );
183 TRACE("PageCommit: page: %08x, npages: %08x, hpd: %08x pagerdata: "
184 "%08x, flags: %08x partial stub\n",
185 page, npages, hpd, pagerdata, flags );
187 if ( flags & PC_USER )
188 if ( flags & PC_WRITABLE )
189 virt_perm = PAGE_EXECUTE_READWRITE;
191 virt_perm = PAGE_EXECUTE_READ;
193 virt_perm = PAGE_NOACCESS;
195 address = (LPVOID )(page * psize);
196 ret = VirtualAlloc ( address, ( npages * psize ), MEM_COMMIT, virt_perm );
197 TRACE("PageCommit: Returning: %p\n", ret );
202 case 0x0002: /* PageDecommit */
206 DWORD psize = getpagesize();
207 ULONG page = (ULONG) stack32_pop( context );
208 ULONG npages = (ULONG) stack32_pop( context );
209 ULONG flags = (ULONG) stack32_pop( context );
211 TRACE("PageDecommit: page: %08x, npages: %08x, flags: %08x partial stub\n",
212 page, npages, flags );
213 address = (LPVOID )( page * psize );
214 ret = VirtualFree ( address, ( npages * psize ), MEM_DECOMMIT );
215 TRACE("PageDecommit: Returning: %s\n", ret ? "TRUE" : "FALSE" );
219 case 0x000d: /* PageModifyPermissions */
225 MEMORY_BASIC_INFORMATION mbi;
227 DWORD psize = getpagesize();
228 ULONG page = stack32_pop ( context );
229 ULONG npages = stack32_pop ( context );
230 ULONG permand = stack32_pop ( context );
231 ULONG permor = stack32_pop ( context );
233 TRACE("PageModifyPermissions %08x %08x %08x %08x partial stub\n",
234 page, npages, permand, permor );
235 address = (LPVOID )( page * psize );
237 VirtualQuery ( address, &mbi, sizeof ( MEMORY_BASIC_INFORMATION ));
238 virt_old_perm = mbi.Protect;
240 switch ( virt_old_perm & mbi.Protect ) {
243 case PAGE_EXECUTE_READ:
244 pg_old_perm = PC_USER;
248 case PAGE_EXECUTE_READWRITE:
249 case PAGE_EXECUTE_WRITECOPY:
250 pg_old_perm = PC_USER | PC_WRITABLE;
257 pg_new_perm = pg_old_perm;
258 pg_new_perm &= permand & ~PC_STATIC;
259 pg_new_perm |= permor & ~PC_STATIC;
261 virt_new_perm = ( virt_old_perm ) & ~0xff;
262 if ( pg_new_perm & PC_USER )
264 if ( pg_new_perm & PC_WRITABLE )
265 virt_new_perm |= PAGE_EXECUTE_READWRITE;
267 virt_new_perm |= PAGE_EXECUTE_READ;
270 if ( ! VirtualProtect ( address, ( npages * psize ), virt_new_perm, &virt_old_perm ) ) {
271 ERR("Can't change page permissions for %p\n", address );
274 TRACE("Returning: %08x\n", pg_old_perm );
278 case 0x000a: /* PageFree */
281 LPVOID hmem = (LPVOID) stack32_pop( context );
282 DWORD flags = (DWORD ) stack32_pop( context );
284 TRACE("PageFree: hmem: %p, flags: %08x partial stub\n",
287 ret = VirtualFree ( hmem, 0, MEM_RELEASE );
288 TRACE("Returning: %d\n", ret );
292 case 0x0011: /* RegOpenKey */
293 stack32_pop( context ); /* kkey */
294 stack32_pop( context ); /* lpszSubKey */
295 stack32_pop( context ); /* retkey */
296 /* return RegOpenKeyExA( hkey, lpszSubKey, 0, KEY_ALL_ACCESS, retkey ); */
299 ERR( "Using the native Win95 advapi32.dll is no longer supported.\n" );
300 ERR( "Please configure advapi32 to builtin.\n" );
303 return ERROR_CALL_NOT_IMPLEMENTED;
305 case 0x0012: /* RegCreateKey */
306 stack32_pop( context ); /* hkey */
307 stack32_pop( context ); /* lpszSubKey */
308 stack32_pop( context ); /* retkey */
309 /* return RegCreateKeyA( hkey, lpszSubKey, retkey ); */
312 ERR( "Using the native Win95 advapi32.dll is no longer supported.\n" );
313 ERR( "Please configure advapi32 to builtin.\n" );
316 return ERROR_CALL_NOT_IMPLEMENTED;
318 case 0x0013: /* RegCloseKey */
319 stack32_pop( context ); /* hkey */
320 /* return RegCloseKey( hkey ); */
321 return ERROR_CALL_NOT_IMPLEMENTED;
323 case 0x0014: /* RegDeleteKey */
324 stack32_pop( context ); /* hkey */
325 stack32_pop( context ); /* lpszSubKey */
326 /* return RegDeleteKeyA( hkey, lpszSubKey ); */
327 return ERROR_CALL_NOT_IMPLEMENTED;
329 case 0x0015: /* RegSetValue */
330 stack32_pop( context ); /* hkey */
331 stack32_pop( context ); /* lpszSubKey */
332 stack32_pop( context ); /* dwType */
333 stack32_pop( context ); /* lpszData */
334 stack32_pop( context ); /* cbData */
335 /* return RegSetValueA( hkey, lpszSubKey, dwType, lpszData, cbData ); */
336 return ERROR_CALL_NOT_IMPLEMENTED;
338 case 0x0016: /* RegDeleteValue */
339 stack32_pop( context ); /* hkey */
340 stack32_pop( context ); /* lpszValue */
341 /* return RegDeleteValueA( hkey, lpszValue ); */
342 return ERROR_CALL_NOT_IMPLEMENTED;
344 case 0x0017: /* RegQueryValue */
345 stack32_pop( context ); /* hkey */
346 stack32_pop( context ); /* lpszSubKey */
347 stack32_pop( context ); /* lpszData */
348 stack32_pop( context ); /* lpcbData */
349 /* return RegQueryValueA( hkey, lpszSubKey, lpszData, lpcbData ); */
350 return ERROR_CALL_NOT_IMPLEMENTED;
352 case 0x0018: /* RegEnumKey */
353 stack32_pop( context ); /* hkey */
354 stack32_pop( context ); /* iSubkey */
355 stack32_pop( context ); /* lpszName */
356 stack32_pop( context ); /* lpcchName */
357 /* return RegEnumKeyA( hkey, iSubkey, lpszName, lpcchName ); */
358 return ERROR_CALL_NOT_IMPLEMENTED;
360 case 0x0019: /* RegEnumValue */
361 stack32_pop( context ); /* hkey */
362 stack32_pop( context ); /* iValue */
363 stack32_pop( context ); /* lpszValue */
364 stack32_pop( context ); /* lpcchValue */
365 stack32_pop( context ); /* lpReserved */
366 stack32_pop( context ); /* lpdwType */
367 stack32_pop( context ); /* lpbData */
368 stack32_pop( context ); /* lpcbData */
369 /* return RegEnumValueA( hkey, iValue, lpszValue, lpcchValue, lpReserved, lpdwType, lpbData, lpcbData ); */
370 return ERROR_CALL_NOT_IMPLEMENTED;
372 case 0x001A: /* RegQueryValueEx */
373 stack32_pop( context ); /* hkey */
374 stack32_pop( context ); /* lpszValue */
375 stack32_pop( context ); /* lpReserved */
376 stack32_pop( context ); /* lpdwType */
377 stack32_pop( context ); /* lpbData */
378 stack32_pop( context ); /* lpcbData */
379 /* return RegQueryValueExA( hkey, lpszValue, lpReserved, lpdwType, lpbData, lpcbData ); */
380 return ERROR_CALL_NOT_IMPLEMENTED;
382 case 0x001B: /* RegSetValueEx */
383 stack32_pop( context ); /* hkey */
384 stack32_pop( context ); /* lpszValue */
385 stack32_pop( context ); /* dwReserved */
386 stack32_pop( context ); /* dwType */
387 stack32_pop( context ); /* lpbData */
388 stack32_pop( context ); /* cbData */
389 /* return RegSetValueExA( hkey, lpszValue, dwReserved, dwType, lpbData, cbData ); */
390 return ERROR_CALL_NOT_IMPLEMENTED;
392 case 0x001C: /* RegFlushKey */
393 stack32_pop( context ); /* hkey */
394 /* return RegFlushKey( hkey ); */
395 return ERROR_CALL_NOT_IMPLEMENTED;
397 case 0x001D: /* RegQueryInfoKey */
398 /* NOTE: This VxDCall takes only a subset of the parameters that the
399 corresponding Win32 API call does. The implementation in Win95
400 ADVAPI32 sets all output parameters not mentioned here to zero. */
401 stack32_pop( context ); /* hkey */
402 stack32_pop( context ); /* lpcSubKeys */
403 stack32_pop( context ); /* lpcchMaxSubKey */
404 stack32_pop( context ); /* lpcValues */
405 stack32_pop( context ); /* lpcchMaxValueName */
406 stack32_pop( context ); /* lpcchMaxValueData */
407 /* return RegQueryInfoKeyA( hkey, lpcSubKeys, lpcchMaxSubKey, lpcValues, lpcchMaxValueName, lpcchMaxValueData ); */
408 return ERROR_CALL_NOT_IMPLEMENTED;
410 case 0x001e: /* GetDemandPageInfo */
412 DWORD dinfo = (DWORD)stack32_pop( context );
413 DWORD flags = (DWORD)stack32_pop( context );
415 /* GetDemandPageInfo is supposed to fill out the struct at
416 * "dinfo" with various low-level memory management information.
417 * Apps are certainly not supposed to call this, although it's
418 * demoed and documented by Pietrek on pages 441-443 of "Windows
419 * 95 System Programming Secrets" if any program needs a real
420 * implementation of this.
423 FIXME("GetDemandPageInfo(%08x %08x): stub!\n", dinfo, flags);
428 case 0x0021: /* RegLoadKey */
430 HKEY hkey = (HKEY) stack32_pop( context );
431 LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
432 LPCSTR lpszFile = (LPCSTR)stack32_pop( context );
433 FIXME("RegLoadKey(%p,%s,%s): stub\n",hkey, debugstr_a(lpszSubKey), debugstr_a(lpszFile));
434 return ERROR_CALL_NOT_IMPLEMENTED;
437 case 0x0022: /* RegUnLoadKey */
439 HKEY hkey = (HKEY) stack32_pop( context );
440 LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
441 FIXME("RegUnLoadKey(%p,%s): stub\n",hkey, debugstr_a(lpszSubKey));
442 return ERROR_CALL_NOT_IMPLEMENTED;
445 case 0x0023: /* RegSaveKey */
447 HKEY hkey = (HKEY) stack32_pop( context );
448 LPCSTR lpszFile = (LPCSTR)stack32_pop( context );
449 LPSECURITY_ATTRIBUTES sa = (LPSECURITY_ATTRIBUTES)stack32_pop( context );
450 FIXME("RegSaveKey(%p,%s,%p): stub\n",hkey, debugstr_a(lpszFile),sa);
451 return ERROR_CALL_NOT_IMPLEMENTED;
454 #if 0 /* Functions are not yet implemented in misc/registry.c */
455 case 0x0024: /* RegRemapPreDefKey */
456 case 0x0026: /* RegQueryMultipleValues */
459 case 0x0027: /* RegReplaceKey */
461 HKEY hkey = (HKEY) stack32_pop( context );
462 LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
463 LPCSTR lpszNewFile= (LPCSTR)stack32_pop( context );
464 LPCSTR lpszOldFile= (LPCSTR)stack32_pop( context );
465 FIXME("RegReplaceKey(%p,%s,%s,%s): stub\n", hkey, debugstr_a(lpszSubKey),
466 debugstr_a(lpszNewFile),debugstr_a(lpszOldFile));
467 return ERROR_CALL_NOT_IMPLEMENTED;
471 if (LOWORD(service) < N_VMM_SERVICE)
472 FIXME( "Unimplemented service %s (%08x)\n",
473 VMM_Service_Name[LOWORD(service)], service);
475 FIXME( "Unknown service %08x\n", service);
476 return 0xffffffff; /* FIXME */