PDMDriver.cpp@ 5283

Last change on this file since 5283 was 5283, checked in by vboxsync, 17 years ago
internal networking fixes.
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File size: 40.0 KB

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1	/* $Id: PDMDriver.cpp 5283 2007-10-12 23:21:09Z vboxsync $ */
2	/** @file
3	* PDM - Pluggable Device and Driver Manager, Driver parts.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 innotek GmbH
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License as published by the Free Software Foundation,
13	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14	* distribution. VirtualBox OSE is distributed in the hope that it will
15	* be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*******************************************************************************
20	* Header Files *
21	*******************************************************************************/
22	#define LOG_GROUP LOG_GROUP_PDM_DRIVER
23	#include "PDMInternal.h"
24	#include <VBox/pdm.h>
25	#include <VBox/mm.h>
26	#include <VBox/cfgm.h>
27	#include <VBox/vmm.h>
28	#include <VBox/sup.h>
29	#include <VBox/vm.h>
30	#include <VBox/version.h>
31	#include <VBox/err.h>
32
33	#include <VBox/log.h>
34	#include <iprt/assert.h>
35	#include <iprt/thread.h>
36	#include <iprt/string.h>
37	#include <iprt/asm.h>
38	#include <iprt/alloc.h>
39	#include <iprt/path.h>
40
41
42	/*******************************************************************************
43	* Structures and Typedefs *
44	*******************************************************************************/
45	/**
46	* Internal callback structure pointer.
47	*
48	* The main purpose is to define the extra data we associate
49	* with PDMDRVREGCB so we can find the VM instance and so on.
50	*/
51	typedef struct PDMDRVREGCBINT
52	{
53	/** The callback structure. */
54	PDMDRVREGCB Core;
55	/** A bit of padding. */
56	uint32_t u32[4];
57	/** VM Handle. */
58	PVM pVM;
59	} PDMDRVREGCBINT, *PPDMDRVREGCBINT;
60	typedef const PDMDRVREGCBINT *PCPDMDRVREGCBINT;
61
62
63	/*******************************************************************************
64	* Internal Functions *
65	*******************************************************************************/
66	/** @name Driver Helpers
67	* @{
68	*/
69	static DECLCALLBACK(int) pdmR3DrvHlp_Attach(PPDMDRVINS pDrvIns, PPDMIBASE *ppBaseInterface);
70	static DECLCALLBACK(int) pdmR3DrvHlp_Detach(PPDMDRVINS pDrvIns);
71	static DECLCALLBACK(int) pdmR3DrvHlp_DetachSelf(PPDMDRVINS pDrvIns);
72	static DECLCALLBACK(int) pdmR3DrvHlp_MountPrepare(PPDMDRVINS pDrvIns, const char pszFilename, const char pszCoreDriver);
73	static DECLCALLBACK(int) pdmR3DrvHlp_VMSetError(PPDMDRVINS pDrvIns, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...);
74	static DECLCALLBACK(int) pdmR3DrvHlp_VMSetErrorV(PPDMDRVINS pDrvIns, int rc, RT_SRC_POS_DECL, const char *pszFormat, va_list va);
75	static DECLCALLBACK(int) pdmR3DrvHlp_VMSetRuntimeError(PPDMDRVINS pDrvIns, bool fFatal, const char pszErrorID, const char pszFormat, ...);
76	static DECLCALLBACK(int) pdmR3DrvHlp_VMSetRuntimeErrorV(PPDMDRVINS pDrvIns, bool fFatal, const char pszErrorID, const char pszFormat, va_list va);
77	static DECLCALLBACK(bool) pdmR3DrvHlp_AssertEMT(PPDMDRVINS pDrvIns, const char pszFile, unsigned iLine, const char pszFunction);
78	static DECLCALLBACK(bool) pdmR3DrvHlp_AssertOther(PPDMDRVINS pDrvIns, const char pszFile, unsigned iLine, const char pszFunction);
79	static DECLCALLBACK(int) pdmR3DrvHlp_PDMQueueCreate(PPDMDRVINS pDrvIns, RTUINT cbItem, RTUINT cItems, uint32_t cMilliesInterval, PFNPDMQUEUEDRV pfnCallback, PPDMQUEUE *ppQueue);
80	static DECLCALLBACK(int) pdmR3DrvHlp_PDMPollerRegister(PPDMDRVINS pDrvIns, PFNPDMDRVPOLLER pfnPoller);
81	static DECLCALLBACK(uint64_t) pdmR3DrvHlp_TMGetVirtualFreq(PPDMDRVINS pDrvIns);
82	static DECLCALLBACK(uint64_t) pdmR3DrvHlp_TMGetVirtualTime(PPDMDRVINS pDrvIns);
83	static DECLCALLBACK(int) pdmR3DrvHlp_TMTimerCreate(PPDMDRVINS pDrvIns, TMCLOCK enmClock, PFNTMTIMERDRV pfnCallback, const char *pszDesc, PPTMTIMERR3 ppTimer);
84	static DECLCALLBACK(int) pdmR3DrvHlp_SSMRegister(PPDMDRVINS pDrvIns, const char *pszName, uint32_t u32Instance, uint32_t u32Version, size_t cbGuess,
85	PFNSSMDRVSAVEPREP pfnSavePrep, PFNSSMDRVSAVEEXEC pfnSaveExec, PFNSSMDRVSAVEDONE pfnSaveDone,
86	PFNSSMDRVLOADPREP pfnLoadPrep, PFNSSMDRVLOADEXEC pfnLoadExec, PFNSSMDRVLOADDONE pfnLoadDone);
87	static DECLCALLBACK(int) pdmR3DrvHlp_SSMDeregister(PPDMDRVINS pDrvIns, const char *pszName, uint32_t u32Instance);
88	static DECLCALLBACK(void) pdmR3DrvHlp_STAMRegister(PPDMDRVINS pDrvIns, void pvSample, STAMTYPE enmType, const char pszName, STAMUNIT enmUnit, const char *pszDesc);
89	static DECLCALLBACK(void) pdmR3DrvHlp_STAMRegisterF(PPDMDRVINS pDrvIns, void pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit, const char pszDesc, const char *pszName, ...);
90	static DECLCALLBACK(void) pdmR3DrvHlp_STAMRegisterV(PPDMDRVINS pDrvIns, void pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit, const char pszDesc, const char *pszName, va_list args);
91	static DECLCALLBACK(int) pdmR3DrvHlp_SUPCallVMMR0Ex(PPDMDRVINS pDrvIns, unsigned uOperation, void *pvArg, unsigned cbArg);
92	static DECLCALLBACK(int) pdmR3DrvHlp_USBRegisterHub(PPDMDRVINS pDrvIns, void pvReservedIn, void *ppvReservedHlp);
93	static DECLCALLBACK(int) pdmR3DrvHlp_PDMThreadCreate(PPDMDRVINS pDrvIns, PPPDMTHREAD ppThread, void *pvUser, PFNPDMTHREADDRV pfnThread,
94	PFNPDMTHREADWAKEUPDRV pfnWakeup, size_t cbStack, RTTHREADTYPE enmType, const char *pszName);
95
96	/** @def PDMDRV_ASSERT_DRVINS
97	* Asserts the validity of the driver instance.
98	*/
99	#ifdef VBOX_STRICT
100	# define PDMDRV_ASSERT_DRVINS(pDrvIns) do { Assert(pDrvIns); Assert(pDrvIns->u32Version == PDM_DRVINS_VERSION); Assert(pDrvIns->pvInstanceData == (void *)&pDrvIns->achInstanceData[0]); } while (0)
101	#else
102	# define PDMDRV_ASSERT_DRVINS(pDrvIns) do { } while (0)
103	#endif
104	/** @} */
105
106	static DECLCALLBACK(int) pdmR3DrvRegister(PCPDMDRVREGCB pCallbacks, PCPDMDRVREG pDrvReg);
107	static int pdmR3DrvLoad(PVM pVM, PPDMDRVREGCBINT pRegCB, const char pszFilename, const char pszName);
108
109
110	/*******************************************************************************
111	* Global Variables *
112	*******************************************************************************/
113	/**
114	* The driver helper structure.
115	*/
116	const PDMDRVHLP g_pdmR3DrvHlp =
117	{
118	PDM_DRVHLP_VERSION,
119	pdmR3DrvHlp_Attach,
120	pdmR3DrvHlp_Detach,
121	pdmR3DrvHlp_DetachSelf,
122	pdmR3DrvHlp_MountPrepare,
123	pdmR3DrvHlp_AssertEMT,
124	pdmR3DrvHlp_AssertOther,
125	pdmR3DrvHlp_VMSetError,
126	pdmR3DrvHlp_VMSetErrorV,
127	pdmR3DrvHlp_VMSetRuntimeError,
128	pdmR3DrvHlp_VMSetRuntimeErrorV,
129	pdmR3DrvHlp_PDMQueueCreate,
130	pdmR3DrvHlp_PDMPollerRegister,
131	pdmR3DrvHlp_TMGetVirtualFreq,
132	pdmR3DrvHlp_TMGetVirtualTime,
133	pdmR3DrvHlp_TMTimerCreate,
134	pdmR3DrvHlp_SSMRegister,
135	pdmR3DrvHlp_SSMDeregister,
136	pdmR3DrvHlp_STAMRegister,
137	pdmR3DrvHlp_STAMRegisterF,
138	pdmR3DrvHlp_STAMRegisterV,
139	pdmR3DrvHlp_SUPCallVMMR0Ex,
140	pdmR3DrvHlp_USBRegisterHub,
141	pdmR3DrvHlp_PDMThreadCreate,
142	0 /* the end */
143	};
144
145
146	/**
147	* Register external drivers
148	*
149	* @returns VBox status code.
150	* @param pVM The VM to operate on.
151	* @param pfnCallback Driver registration callback
152	*/
153	PDMR3DECL(int) PDMR3RegisterDrivers(PVM pVM, FNPDMVBOXDRIVERSREGISTER pfnCallback)
154	{
155	/*
156	* The registration callbacks.
157	*/
158	PDMDRVREGCBINT RegCB;
159	RegCB.Core.u32Version = PDM_DRVREG_CB_VERSION;
160	RegCB.Core.pfnRegister = pdmR3DrvRegister;
161	RegCB.pVM = pVM;
162
163	int rc = pfnCallback(&RegCB.Core, VBOX_VERSION);
164	if (VBOX_FAILURE(rc))
165	AssertMsgFailed(("VBoxDriversRegister failed with rc=%Vrc\n"));
166
167	return rc;
168	}
169
170	/**
171	* This function will initialize the drivers for this VM instance.
172	*
173	* First of all this mean loading the builtin drivers and letting them
174	* register themselves. Beyond that any additional driver modules are
175	* loaded and called for registration.
176	*
177	* @returns VBox status code.
178	* @param pVM VM Handle.
179	*/
180	int pdmR3DrvInit(PVM pVM)
181	{
182	LogFlow(("pdmR3DrvInit:\n"));
183
184	AssertRelease(!(RT_OFFSETOF(PDMDRVINS, achInstanceData) & 15));
185	PPDMDRVINS pDrvInsAssert;
186	AssertRelease(sizeof(pDrvInsAssert->Internal.s) <= sizeof(pDrvInsAssert->Internal.padding));
187
188	/*
189	* The registration callbacks.
190	*/
191	PDMDRVREGCBINT RegCB;
192	RegCB.Core.u32Version = PDM_DRVREG_CB_VERSION;
193	RegCB.Core.pfnRegister = pdmR3DrvRegister;
194	RegCB.pVM = pVM;
195
196	/*
197	* Load the builtin module
198	*/
199	PCFGMNODE pDriversNode = CFGMR3GetChild(CFGMR3GetRoot(pVM), "PDM/Drivers");
200	bool fLoadBuiltin;
201	int rc = CFGMR3QueryBool(pDriversNode, "LoadBuiltin", &fLoadBuiltin);
202	if (rc == VERR_CFGM_VALUE_NOT_FOUND \|\| rc == VERR_CFGM_NO_PARENT)
203	fLoadBuiltin = true;
204	else if (VBOX_FAILURE(rc))
205	{
206	AssertMsgFailed(("Configuration error: Querying boolean \"LoadBuiltin\" failed with %Vrc\n", rc));
207	return rc;
208	}
209	if (fLoadBuiltin)
210	{
211	/* make filename */
212	char pszFilename = pdmR3FileR3("VBoxDD", /fShared=*/true);
213	if (!pszFilename)
214	return VERR_NO_TMP_MEMORY;
215	rc = pdmR3DrvLoad(pVM, &RegCB, pszFilename, "VBoxDD");
216	RTMemTmpFree(pszFilename);
217	if (VBOX_FAILURE(rc))
218	return rc;
219	}
220
221	/*
222	* Load additional driver modules.
223	*/
224	for (PCFGMNODE pCur = CFGMR3GetFirstChild(pDriversNode); pCur; pCur = CFGMR3GetNextChild(pCur))
225	{
226	/*
227	* Get the name and path.
228	*/
229	char szName[PDMMOD_NAME_LEN];
230	rc = CFGMR3GetName(pCur, &szName[0], sizeof(szName));
231	if (rc == VERR_CFGM_NOT_ENOUGH_SPACE)
232	{
233	AssertMsgFailed(("configuration error: The module name is too long, cchName=%d.\n", CFGMR3GetNameLen(pCur)));
234	return VERR_PDM_MODULE_NAME_TOO_LONG;
235	}
236	else if (VBOX_FAILURE(rc))
237	{
238	AssertMsgFailed(("CFGMR3GetName -> %Vrc.\n", rc));
239	return rc;
240	}
241
242	/* the path is optional, if no path the module name + path is used. */
243	char szFilename[RTPATH_MAX];
244	rc = CFGMR3QueryString(pCur, "Path", &szFilename[0], sizeof(szFilename));
245	if (rc == VERR_CFGM_VALUE_NOT_FOUND \|\| rc == VERR_CFGM_NO_PARENT)
246	strcpy(szFilename, szName);
247	else if (VBOX_FAILURE(rc))
248	{
249	AssertMsgFailed(("configuration error: Failure to query the module path, rc=%Vrc.\n", rc));
250	return rc;
251	}
252
253	/* prepend path? */
254	if (!RTPathHavePath(szFilename))
255	{
256	char *psz = pdmR3FileR3(szFilename);
257	if (!psz)
258	return VERR_NO_TMP_MEMORY;
259	size_t cch = strlen(psz) + 1;
260	if (cch > sizeof(szFilename))
261	{
262	RTMemTmpFree(psz);
263	AssertMsgFailed(("Filename too long! cch=%d '%s'\n", cch, psz));
264	return VERR_FILENAME_TOO_LONG;
265	}
266	memcpy(szFilename, psz, cch);
267	RTMemTmpFree(psz);
268	}
269
270	/*
271	* Load the module and register it's drivers.
272	*/
273	rc = pdmR3DrvLoad(pVM, &RegCB, szFilename, szName);
274	if (VBOX_FAILURE(rc))
275	return rc;
276	}
277
278	LogFlow(("pdmR3DrvInit: returns VINF_SUCCESS\n"));
279	return VINF_SUCCESS;
280	}
281
282
283	/**
284	* Loads one driver module and call the registration entry point.
285	*
286	* @returns VBox status code.
287	* @param pVM VM handle.
288	* @param pRegCB The registration callback stuff.
289	* @param pszFilename Module filename.
290	* @param pszName Module name.
291	*/
292	static int pdmR3DrvLoad(PVM pVM, PPDMDRVREGCBINT pRegCB, const char pszFilename, const char pszName)
293	{
294	/*
295	* Load it.
296	*/
297	int rc = pdmR3LoadR3(pVM, pszFilename, pszName);
298	if (VBOX_SUCCESS(rc))
299	{
300	/*
301	* Get the registration export and call it.
302	*/
303	FNPDMVBOXDRIVERSREGISTER *pfnVBoxDriversRegister;
304	rc = PDMR3GetSymbolR3(pVM, pszName, "VBoxDriversRegister", (void **)&pfnVBoxDriversRegister);
305	if (VBOX_SUCCESS(rc))
306	{
307	Log(("PDM: Calling VBoxDriversRegister (%p) of %s (%s)\n", pfnVBoxDriversRegister, pszName, pszFilename));
308	rc = pfnVBoxDriversRegister(&pRegCB->Core, VBOX_VERSION);
309	if (VBOX_SUCCESS(rc))
310	Log(("PDM: Successfully loaded driver module %s (%s).\n", pszName, pszFilename));
311	else
312	AssertMsgFailed(("VBoxDriversRegister failed with rc=%Vrc\n"));
313	}
314	else
315	{
316	AssertMsgFailed(("Failed to locate 'VBoxDriversRegister' in %s (%s) rc=%Vrc\n", pszName, pszFilename, rc));
317	if (rc == VERR_SYMBOL_NOT_FOUND)
318	rc = VERR_PDM_NO_REGISTRATION_EXPORT;
319	}
320	}
321	else
322	AssertMsgFailed(("Failed to load %s (%s) rc=%Vrc!\n", pszName, pszFilename, rc));
323	return rc;
324	}
325
326
327	/** @copydoc PDMDRVREGCB::pfnRegister */
328	static DECLCALLBACK(int) pdmR3DrvRegister(PCPDMDRVREGCB pCallbacks, PCPDMDRVREG pDrvReg)
329	{
330	/*
331	* Validate the registration structure.
332	*/
333	Assert(pDrvReg);
334	if (pDrvReg->u32Version != PDM_DRVREG_VERSION)
335	{
336	AssertMsgFailed(("Unknown struct version %#x!\n", pDrvReg->u32Version));
337	return VERR_PDM_UNKNOWN_DRVREG_VERSION;
338	}
339	if ( !pDrvReg->szDriverName[0]
340	\|\| strlen(pDrvReg->szDriverName) >= sizeof(pDrvReg->szDriverName))
341	{
342	AssertMsgFailed(("Invalid name '%s'\n", pDrvReg->szDriverName));
343	return VERR_PDM_INVALID_DRIVER_REGISTRATION;
344	}
345	if ((pDrvReg->fFlags & PDM_DRVREG_FLAGS_HOST_BITS_MASK) != PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT)
346	{
347	AssertMsgFailed(("Invalid host bits flags! fFlags=%#x (Driver %s)\n", pDrvReg->fFlags, pDrvReg->szDriverName));
348	return VERR_PDM_INVALID_DRIVER_HOST_BITS;
349	}
350	if (pDrvReg->cMaxInstances <= 0)
351	{
352	AssertMsgFailed(("Max instances %u! (Driver %s)\n", pDrvReg->cMaxInstances, pDrvReg->szDriverName));
353	return VERR_PDM_INVALID_DRIVER_REGISTRATION;
354	}
355	if (pDrvReg->cbInstance > _1M)
356	{
357	AssertMsgFailed(("Instance size above 1MB, %d bytes! (Driver %s)\n", pDrvReg->cbInstance, pDrvReg->szDriverName));
358	return VERR_PDM_INVALID_DRIVER_REGISTRATION;
359	}
360	if (!pDrvReg->pfnConstruct)
361	{
362	AssertMsgFailed(("No constructore! (Driver %s)\n", pDrvReg->szDriverName));
363	return VERR_PDM_INVALID_DRIVER_REGISTRATION;
364	}
365
366	/*
367	* Check for duplicate and find FIFO entry at the same time.
368	*/
369	PCPDMDRVREGCBINT pRegCB = (PCPDMDRVREGCBINT)pCallbacks;
370	PPDMDRV pDrvPrev = NULL;
371	PPDMDRV pDrv = pRegCB->pVM->pdm.s.pDrvs;
372	for (; pDrv; pDrvPrev = pDrv, pDrv = pDrv->pNext)
373	{
374	if (!strcmp(pDrv->pDrvReg->szDriverName, pDrvReg->szDriverName))
375	{
376	AssertMsgFailed(("Driver '%s' already exists\n", pDrvReg->szDriverName));
377	return VERR_PDM_DRIVER_NAME_CLASH;
378	}
379	}
380
381	/*
382	* Allocate new driver structure and insert it into the list.
383	*/
384	pDrv = (PPDMDRV)MMR3HeapAlloc(pRegCB->pVM, MM_TAG_PDM_DRIVER, sizeof(*pDrv));
385	if (pDrv)
386	{
387	pDrv->pNext = NULL;
388	pDrv->cInstances = 0;
389	pDrv->pDrvReg = pDrvReg;
390
391	if (pDrvPrev)
392	pDrvPrev->pNext = pDrv;
393	else
394	pRegCB->pVM->pdm.s.pDrvs = pDrv;
395	Log(("PDM: Registered driver '%s'\n", pDrvReg->szDriverName));
396	return VINF_SUCCESS;
397	}
398	return VERR_NO_MEMORY;
399	}
400
401
402	/**
403	* Lookups a driver structure by name.
404	* @internal
405	*/
406	PPDMDRV pdmR3DrvLookup(PVM pVM, const char *pszName)
407	{
408	for (PPDMDRV pDrv = pVM->pdm.s.pDrvs; pDrv; pDrv = pDrv->pNext)
409	if (!strcmp(pDrv->pDrvReg->szDriverName, pszName))
410	return pDrv;
411	return NULL;
412	}
413
414
415	/**
416	* Detaches a driver from whatever it's attached to.
417	* This will of course lead to the destruction of the driver and all drivers below it in the chain.
418	*
419	* @returns VINF_SUCCESS
420	* @param pDrvIns The driver instance to detach.
421	*/
422	int pdmR3DrvDetach(PPDMDRVINS pDrvIns)
423	{
424	PDMDRV_ASSERT_DRVINS(pDrvIns);
425	LogFlow(("pdmR3DrvDetach: pDrvIns=%p '%s'/%d\n", pDrvIns, pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
426	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
427
428	/*
429	* Check that we're not doing this recursively, that could have unwanted sideeffects!
430	*/
431	if (pDrvIns->Internal.s.fDetaching)
432	{
433	AssertMsgFailed(("Recursive detach! '%s'/%d\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
434	return VINF_SUCCESS;
435	}
436
437	/*
438	* Check that we actually can detach this instance.
439	* The requirement is that the driver/device above have a detach method.
440	*/
441	if (pDrvIns->Internal.s.pUp
442	? !pDrvIns->Internal.s.pUp->pDrvReg->pfnDetach
443	: !pDrvIns->Internal.s.pLun->pDevIns->pDevReg->pfnDetach)
444	{
445	AssertMsgFailed(("Cannot detach driver instance because the driver/device above doesn't support it!\n"));
446	return VERR_PDM_DRIVER_DETACH_NOT_POSSIBLE;
447	}
448
449	/*
450	* Detach the bottom most driver until we've detached pDrvIns.
451	*/
452	pDrvIns->Internal.s.fDetaching = true;
453	PPDMDRVINS pCur;
454	do
455	{
456	/* find the driver to detach. */
457	pCur = pDrvIns;
458	while (pCur->Internal.s.pDown)
459	pCur = pCur->Internal.s.pDown;
460	LogFlow(("pdmR3DrvDetach: pCur=%p '%s'/%d\n", pCur, pCur->pDrvReg->szDriverName, pCur->iInstance));
461
462	/*
463	* Unlink it and notify parent.
464	*/
465	pCur->Internal.s.fDetaching = true;
466	if (pCur->Internal.s.pUp)
467	{
468	/* driver parent */
469	PPDMDRVINS pParent = pCur->Internal.s.pUp;
470	pCur->Internal.s.pUp = NULL;
471	pParent->Internal.s.pDown = NULL;
472
473	if (pParent->pDrvReg->pfnDetach)
474	pParent->pDrvReg->pfnDetach(pParent);
475
476	pParent->pDownBase = NULL;
477	}
478	else
479	{
480	/* device parent */
481	PPDMLUN pLun = pCur->Internal.s.pLun;
482	pLun->pTop = NULL;
483	if (pLun->pDevIns->pDevReg->pfnDetach)
484	pLun->pDevIns->pDevReg->pfnDetach(pLun->pDevIns, pLun->iLun);
485	}
486
487	/*
488	* Call destructor.
489	*/
490	pCur->pUpBase = NULL;
491	if (pCur->pDrvReg->pfnDestruct)
492	pCur->pDrvReg->pfnDestruct(pCur);
493
494	/*
495	* Free all resources allocated by the driver.
496	*/
497	/* Queues. */
498	int rc = PDMR3QueueDestroyDriver(pCur->Internal.s.pVM, pCur);
499	AssertRC(rc);
500	/* Timers. */
501	rc = TMR3TimerDestroyDriver(pCur->Internal.s.pVM, pCur);
502	AssertRC(rc);
503	/* SSM data units. */
504	rc = SSMR3DeregisterDriver(pCur->Internal.s.pVM, pCur, NULL, 0);
505	AssertRC(rc);
506	/* PDM threads. */
507	rc = pdmR3ThreadDestroyDriver(pCur->Internal.s.pVM, pCur);
508	AssertRC(rc);
509	/* Finally, the driver it self. */
510	ASMMemFill32(pCur, RT_OFFSETOF(PDMDRVINS, achInstanceData[pCur->pDrvReg->cbInstance]), 0xdeadd0d0);
511	MMR3HeapFree(pCur);
512
513	} while (pCur != pDrvIns);
514
515	return VINF_SUCCESS;
516	}
517
518
519	/** @copydoc PDMDRVHLP::pfnAttach */
520	static DECLCALLBACK(int) pdmR3DrvHlp_Attach(PPDMDRVINS pDrvIns, PPDMIBASE *ppBaseInterface)
521	{
522	PDMDRV_ASSERT_DRVINS(pDrvIns);
523	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
524	LogFlow(("pdmR3DrvHlp_Attach: caller='%s'/%d:\n",
525	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
526
527	/*
528	* Check that there isn't anything attached already.
529	*/
530	int rc;
531	if (!pDrvIns->Internal.s.pDown)
532	{
533	/*
534	* Get the attached driver configuration.
535	*/
536	PCFGMNODE pNode = CFGMR3GetChild(pDrvIns->Internal.s.pCfgHandle, "AttachedDriver");
537	if (pNode)
538	{
539	char *pszName;
540	rc = CFGMR3QueryStringAlloc(pNode, "Driver", &pszName);
541	if (VBOX_SUCCESS(rc))
542	{
543	/*
544	* Find the driver and allocate instance data.
545	*/
546	PVM pVM = pDrvIns->Internal.s.pVM;
547	PPDMDRV pDrv = pdmR3DrvLookup(pVM, pszName);
548	if (pDrv)
549	{
550	/* config node */
551	PCFGMNODE pConfigNode = CFGMR3GetChild(pNode, "Config");
552	if (!pConfigNode)
553	rc = CFGMR3InsertNode(pNode, "Config", &pConfigNode);
554	if (VBOX_SUCCESS(rc))
555	{
556	CFGMR3SetRestrictedRoot(pConfigNode);
557
558	size_t cb = RT_OFFSETOF(PDMDRVINS, achInstanceData[pDrv->pDrvReg->cbInstance]);
559	cb = RT_ALIGN_Z(cb, 16);
560	PPDMDRVINS pNew = (PPDMDRVINS)MMR3HeapAllocZ(pVM, MM_TAG_PDM_DRIVER, cb);
561	if (pNew)
562	{
563	/*
564	* Initialize the instance structure (declaration order).
565	*/
566	pNew->u32Version = PDM_DRVINS_VERSION;
567	pNew->Internal.s.pUp = pDrvIns;
568	pNew->Internal.s.pDown = NULL;
569	pNew->Internal.s.pLun = pDrvIns->Internal.s.pLun;
570	pNew->Internal.s.pDrv = pDrv;
571	pNew->Internal.s.pVM = pVM;
572	pNew->Internal.s.fDetaching = false;
573	pNew->Internal.s.pCfgHandle = pNode;
574	pNew->pDrvHlp = &g_pdmR3DrvHlp;
575	pNew->pDrvReg = pDrv->pDrvReg;
576	pNew->pCfgHandle = pConfigNode;
577	pNew->iInstance = pDrv->cInstances++;
578	pNew->pUpBase = &pDrvIns->IBase; /* This ain't safe, you can calc the pDrvIns of the up/down driver! */
579	pNew->pDownBase = NULL;
580	pNew->IBase.pfnQueryInterface = NULL;
581	pNew->pvInstanceData = &pNew->achInstanceData[0];
582
583	/*
584	* Hook it onto the chain and call the constructor.
585	*/
586	pDrvIns->Internal.s.pDown = pNew;
587	Log(("PDM: Constructing driver '%s' instance %d...\n", pNew->pDrvReg->szDriverName, pNew->iInstance));
588	rc = pDrv->pDrvReg->pfnConstruct(pNew, pNew->pCfgHandle);
589	if (VBOX_SUCCESS(rc))
590	{
591	*ppBaseInterface = &pNew->IBase;
592	rc = VINF_SUCCESS;
593	}
594	else
595	{
596	/*
597	* Unlink and free the data.
598	*/
599	pDrvIns->Internal.s.pDown = NULL;
600	ASMMemFill32(pNew, cb, 0xdeadd0d0);
601	MMR3HeapFree(pNew);
602	pDrv->cInstances--;
603	}
604	}
605	else
606	{
607	AssertMsgFailed(("Failed to allocate %d bytes for instantiating driver '%s'\n", cb, pszName));
608	rc = VERR_NO_MEMORY;
609	}
610	}
611	else
612	AssertMsgFailed(("Failed to create Config node! rc=%Vrc\n", rc));
613	}
614	else
615	{
616	AssertMsgFailed(("Driver '%s' wasn't found!\n", pszName));
617	rc = VERR_PDM_DRIVER_NOT_FOUND;
618	}
619	MMR3HeapFree(pszName);
620	}
621	else
622	{
623	AssertMsgFailed(("Query for string value of \"Driver\" -> %Vrc\n", rc));
624	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
625	rc = VERR_PDM_CFG_MISSING_DRIVER_NAME;
626	}
627	}
628	else
629	rc = VERR_PDM_NO_ATTACHED_DRIVER;
630	}
631	else
632	{
633	AssertMsgFailed(("Already got a driver attached. The driver should keep track of such things!\n"));
634	rc = VERR_PDM_DRIVER_ALREADY_ATTACHED;
635	}
636
637	LogFlow(("pdmR3DrvHlp_Attach: caller='%s'/%d: return %Vrc\n",
638	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc));
639	return rc;
640	}
641
642
643	/** @copydoc PDMDRVHLP::pfnDetach */
644	static DECLCALLBACK(int) pdmR3DrvHlp_Detach(PPDMDRVINS pDrvIns)
645	{
646	PDMDRV_ASSERT_DRVINS(pDrvIns);
647	LogFlow(("pdmR3DrvHlp_Detach: caller='%s'/%d:\n",
648	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
649	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
650
651	/*
652	* Anything attached?
653	*/
654	int rc;
655	if (pDrvIns->Internal.s.pDown)
656	{
657	rc = pdmR3DrvDetach(pDrvIns->Internal.s.pDown);
658	}
659	else
660	{
661	AssertMsgFailed(("Nothing attached!\n"));
662	rc = VERR_PDM_NO_DRIVER_ATTACHED;
663	}
664
665	LogFlow(("pdmR3DrvHlp_Detach: caller='%s'/%d: returns %Vrc\n",
666	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc));
667	return rc;
668	}
669
670
671	/** @copydoc PDMDRVHLP::pfnDetachSelf */
672	static DECLCALLBACK(int) pdmR3DrvHlp_DetachSelf(PPDMDRVINS pDrvIns)
673	{
674	PDMDRV_ASSERT_DRVINS(pDrvIns);
675	LogFlow(("pdmR3DrvHlp_DetachSelf: caller='%s'/%d:\n",
676	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
677	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
678
679	int rc = pdmR3DrvDetach(pDrvIns);
680
681	LogFlow(("pdmR3DrvHlp_Detach: returns %Vrc\n", rc)); /* pDrvIns is freed by now. */
682	return rc;
683	}
684
685
686	/** @copydoc PDMDRVHLP::pfnMountPrepare */
687	static DECLCALLBACK(int) pdmR3DrvHlp_MountPrepare(PPDMDRVINS pDrvIns, const char pszFilename, const char pszCoreDriver)
688	{
689	PDMDRV_ASSERT_DRVINS(pDrvIns);
690	LogFlow(("pdmR3DrvHlp_MountPrepare: caller='%s'/%d: pszFilename=%p:{%s} pszCoreDriver=%p:{%s}\n",
691	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pszFilename, pszFilename, pszCoreDriver, pszCoreDriver));
692	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
693
694	/*
695	* Do the caller have anything attached below itself?
696	*/
697	if (pDrvIns->Internal.s.pDown)
698	{
699	AssertMsgFailed(("Cannot prepare a mount when something's attached to you!\n"));
700	return VERR_PDM_DRIVER_ALREADY_ATTACHED;
701	}
702
703	/*
704	* We're asked to prepare, so we'll start off by nuking the
705	* attached configuration tree.
706	*/
707	PCFGMNODE pNode = CFGMR3GetChild(pDrvIns->Internal.s.pCfgHandle, "AttachedDriver");
708	if (pNode)
709	CFGMR3RemoveNode(pNode);
710
711	/*
712	* If there is no core driver, we'll have to probe for it.
713	*/
714	if (!pszCoreDriver)
715	{
716	/** @todo implement image probing. */
717	AssertReleaseMsgFailed(("Not implemented!\n"));
718	return VERR_NOT_IMPLEMENTED;
719	}
720
721	/*
722	* Construct the basic attached driver configuration.
723	*/
724	int rc = CFGMR3InsertNode(pDrvIns->Internal.s.pCfgHandle, "AttachedDriver", &pNode);
725	if (VBOX_SUCCESS(rc))
726	{
727	rc = CFGMR3InsertString(pNode, "Driver", pszCoreDriver);
728	if (VBOX_SUCCESS(rc))
729	{
730	PCFGMNODE pCfg;
731	rc = CFGMR3InsertNode(pNode, "Config", &pCfg);
732	if (VBOX_SUCCESS(rc))
733	{
734	rc = CFGMR3InsertString(pCfg, "Path", pszFilename);
735	if (VBOX_SUCCESS(rc))
736	{
737	LogFlow(("pdmR3DrvHlp_MountPrepare: caller='%s'/%d: returns %Vrc (Driver=%s)\n",
738	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc, pszCoreDriver));
739	return rc;
740	}
741	else
742	AssertMsgFailed(("Path string insert failed, rc=%Vrc\n", rc));
743	}
744	else
745	AssertMsgFailed(("Config node failed, rc=%Vrc\n", rc));
746	}
747	else
748	AssertMsgFailed(("Driver string insert failed, rc=%Vrc\n", rc));
749	CFGMR3RemoveNode(pNode);
750	}
751	else
752	AssertMsgFailed(("AttachedDriver node insert failed, rc=%Vrc\n", rc));
753
754	LogFlow(("pdmR3DrvHlp_MountPrepare: caller='%s'/%d: returns %Vrc\n",
755	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc));
756	return rc;
757	}
758
759
760	/** @copydoc PDMDRVHLP::pfnAssertEMT */
761	static DECLCALLBACK(bool) pdmR3DrvHlp_AssertEMT(PPDMDRVINS pDrvIns, const char pszFile, unsigned iLine, const char pszFunction)
762	{
763	PDMDRV_ASSERT_DRVINS(pDrvIns);
764	if (VM_IS_EMT(pDrvIns->Internal.s.pVM))
765	return true;
766
767	char szMsg[100];
768	RTStrPrintf(szMsg, sizeof(szMsg), "AssertEMT '%s'/%d\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance);
769	AssertMsg1(szMsg, iLine, pszFile, pszFunction);
770	AssertBreakpoint();
771	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
772	return false;
773	}
774
775
776	/** @copydoc PDMDRVHLP::pfnAssertOther */
777	static DECLCALLBACK(bool) pdmR3DrvHlp_AssertOther(PPDMDRVINS pDrvIns, const char pszFile, unsigned iLine, const char pszFunction)
778	{
779	PDMDRV_ASSERT_DRVINS(pDrvIns);
780	if (!VM_IS_EMT(pDrvIns->Internal.s.pVM))
781	return true;
782
783	char szMsg[100];
784	RTStrPrintf(szMsg, sizeof(szMsg), "AssertOther '%s'/%d\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance);
785	AssertMsg1(szMsg, iLine, pszFile, pszFunction);
786	AssertBreakpoint();
787	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
788	return false;
789	}
790
791
792	/** @copydoc PDMDRVHLP::pfnVMSetError */
793	static DECLCALLBACK(int) pdmR3DrvHlp_VMSetError(PPDMDRVINS pDrvIns, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
794	{
795	PDMDRV_ASSERT_DRVINS(pDrvIns);
796	va_list args;
797	va_start(args, pszFormat);
798	int rc2 = VMSetErrorV(pDrvIns->Internal.s.pVM, rc, RT_SRC_POS_ARGS, pszFormat, args); Assert(rc2 == rc); NOREF(rc2);
799	va_end(args);
800	return rc;
801	}
802
803
804	/** @copydoc PDMDRVHLP::pfnVMSetErrorV */
805	static DECLCALLBACK(int) pdmR3DrvHlp_VMSetErrorV(PPDMDRVINS pDrvIns, int rc, RT_SRC_POS_DECL, const char *pszFormat, va_list va)
806	{
807	PDMDRV_ASSERT_DRVINS(pDrvIns);
808	int rc2 = VMSetErrorV(pDrvIns->Internal.s.pVM, rc, RT_SRC_POS_ARGS, pszFormat, va); Assert(rc2 == rc); NOREF(rc2);
809	return rc;
810	}
811
812
813	/** @copydoc PDMDRVHLP::pfnVMSetRuntimeError */
814	static DECLCALLBACK(int) pdmR3DrvHlp_VMSetRuntimeError(PPDMDRVINS pDrvIns, bool fFatal, const char pszErrorID, const char pszFormat, ...)
815	{
816	PDMDRV_ASSERT_DRVINS(pDrvIns);
817	va_list args;
818	va_start(args, pszFormat);
819	int rc = VMSetRuntimeErrorV(pDrvIns->Internal.s.pVM, fFatal, pszErrorID, pszFormat, args);
820	va_end(args);
821	return rc;
822	}
823
824
825	/** @copydoc PDMDRVHLP::pfnVMSetRuntimeErrorV */
826	static DECLCALLBACK(int) pdmR3DrvHlp_VMSetRuntimeErrorV(PPDMDRVINS pDrvIns, bool fFatal, const char pszErrorID, const char pszFormat, va_list va)
827	{
828	PDMDRV_ASSERT_DRVINS(pDrvIns);
829	int rc = VMSetRuntimeErrorV(pDrvIns->Internal.s.pVM, fFatal, pszErrorID, pszFormat, va);
830	return rc;
831	}
832
833
834	/** @copydoc PDMDRVHLP::pfnPDMQueueCreate */
835	static DECLCALLBACK(int) pdmR3DrvHlp_PDMQueueCreate(PPDMDRVINS pDrvIns, RTUINT cbItem, RTUINT cItems, uint32_t cMilliesInterval, PFNPDMQUEUEDRV pfnCallback, PPDMQUEUE *ppQueue)
836	{
837	PDMDRV_ASSERT_DRVINS(pDrvIns);
838	LogFlow(("pdmR3DrvHlp_PDMQueueCreate: caller='%s'/%d: cbItem=%d cItems=%d cMilliesInterval=%d pfnCallback=%p ppQueue=%p\n",
839	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, cbItem, cItems, cMilliesInterval, pfnCallback, ppQueue, ppQueue));
840	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
841
842	int rc = PDMR3QueueCreateDriver(pDrvIns->Internal.s.pVM, pDrvIns, cbItem, cItems, cMilliesInterval, pfnCallback, ppQueue);
843
844	LogFlow(("pdmR3DrvHlp_PDMQueueCreate: caller='%s'/%d: returns %Vrc ppQueue=%p\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc, ppQueue));
845	return rc;
846	}
847
848
849
850	/** @copydoc PDMDRVHLP::pfnPDMPollerRegister */
851	static DECLCALLBACK(int) pdmR3DrvHlp_PDMPollerRegister(PPDMDRVINS pDrvIns, PFNPDMDRVPOLLER pfnPoller)
852	{
853	PDMDRV_ASSERT_DRVINS(pDrvIns);
854	LogFlow(("pdmR3DrvHlp_PDMPollerRegister: caller='%s'/%d: pfnPoller=%p\n",
855	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pfnPoller));
856	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
857
858	int rc = VINF_SUCCESS;
859	PVM pVM = pDrvIns->Internal.s.pVM;
860	if (pVM->pdm.s.cPollers < ELEMENTS(pVM->pdm.s.apfnPollers))
861	{
862	pVM->pdm.s.apfnPollers[pVM->pdm.s.cPollers] = pfnPoller;
863	pVM->pdm.s.aDrvInsPollers[pVM->pdm.s.cPollers] = pDrvIns;
864	pVM->pdm.s.cPollers++;
865	if (pVM->pdm.s.cPollers == 1)
866	TMTimerSetMillies(pVM->pdm.s.pTimerPollers, 5);
867	}
868	else
869	{
870	AssertMsgFailed(("Too many pollers!\n"));
871	rc = VERR_INTERNAL_ERROR;
872	}
873
874	LogFlow(("pdmR3DrvHlp_PDMPollerRegister: caller='%s'/%d: returns %Vrc\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc));
875	return rc;
876	}
877
878
879	/** @copydoc PDMDRVHLP::pfnTMGetVirtualFreq */
880	static DECLCALLBACK(uint64_t) pdmR3DrvHlp_TMGetVirtualFreq(PPDMDRVINS pDrvIns)
881	{
882	PDMDRV_ASSERT_DRVINS(pDrvIns);
883
884	return TMVirtualGetFreq(pDrvIns->Internal.s.pVM);
885	}
886
887
888	/** @copydoc PDMDRVHLP::pfnTMGetVirtualTime */
889	static DECLCALLBACK(uint64_t) pdmR3DrvHlp_TMGetVirtualTime(PPDMDRVINS pDrvIns)
890	{
891	PDMDRV_ASSERT_DRVINS(pDrvIns);
892
893	return TMVirtualGet(pDrvIns->Internal.s.pVM);
894	}
895
896	/** @copydoc PDMDRVHLP::pfnTMTimerCreate */
897	static DECLCALLBACK(int) pdmR3DrvHlp_TMTimerCreate(PPDMDRVINS pDrvIns, TMCLOCK enmClock, PFNTMTIMERDRV pfnCallback, const char *pszDesc, PPTMTIMERR3 ppTimer)
898	{
899	PDMDRV_ASSERT_DRVINS(pDrvIns);
900	LogFlow(("pdmR3DrvHlp_TMTimerCreate: caller='%s'/%d: enmClock=%d pfnCallback=%p pszDesc=%p:{%s} ppTimer=%p\n",
901	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, enmClock, pfnCallback, pszDesc, pszDesc, ppTimer));
902
903	int rc = TMR3TimerCreateDriver(pDrvIns->Internal.s.pVM, pDrvIns, enmClock, pfnCallback, pszDesc, ppTimer);
904
905	LogFlow(("pdmR3DrvHlp_TMTimerCreate: caller='%s'/%d: returns %Vrc ppTimer=%p\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc, ppTimer));
906	return rc;
907	}
908
909
910
911	/** @copydoc PDMDRVHLP::pfnSSMRegister */
912	static DECLCALLBACK(int) pdmR3DrvHlp_SSMRegister(PPDMDRVINS pDrvIns, const char *pszName, uint32_t u32Instance, uint32_t u32Version, size_t cbGuess,
913	PFNSSMDRVSAVEPREP pfnSavePrep, PFNSSMDRVSAVEEXEC pfnSaveExec, PFNSSMDRVSAVEDONE pfnSaveDone,
914	PFNSSMDRVLOADPREP pfnLoadPrep, PFNSSMDRVLOADEXEC pfnLoadExec, PFNSSMDRVLOADDONE pfnLoadDone)
915	{
916	PDMDRV_ASSERT_DRVINS(pDrvIns);
917	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
918	LogFlow(("pdmR3DrvHlp_SSMRegister: caller='%s'/%d: pszName=%p:{%s} u32Instance=%#x u32Version=#x cbGuess=%#x pfnSavePrep=%p pfnSaveExec=%p pfnSaveDone=%p pszLoadPrep=%p pfnLoadExec=%p pfnLoaddone=%p\n",
919	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pszName, pszName, u32Instance, u32Version, cbGuess, pfnSavePrep, pfnSaveExec, pfnSaveDone, pfnLoadPrep, pfnLoadExec, pfnLoadDone));
920
921	int rc = SSMR3RegisterDriver(pDrvIns->Internal.s.pVM, pDrvIns, pszName, u32Instance, u32Version, cbGuess,
922	pfnSavePrep, pfnSaveExec, pfnSaveDone,
923	pfnLoadPrep, pfnLoadExec, pfnLoadDone);
924
925	LogFlow(("pdmR3DrvHlp_SSMRegister: caller='%s'/%d: returns %Vrc\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc));
926	return rc;
927	}
928
929
930	/** @copydoc PDMDRVHLP::pfnSSMDeregister */
931	static DECLCALLBACK(int) pdmR3DrvHlp_SSMDeregister(PPDMDRVINS pDrvIns, const char *pszName, uint32_t u32Instance)
932	{
933	PDMDRV_ASSERT_DRVINS(pDrvIns);
934	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
935	LogFlow(("pdmR3DrvHlp_SSMDeregister: caller='%s'/%d: pszName=%p:{%s} u32Instance=%#x\n",
936	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pszName, pszName, u32Instance));
937
938	int rc = SSMR3DeregisterDriver(pDrvIns->Internal.s.pVM, pDrvIns, pszName, u32Instance);
939
940	LogFlow(("pdmR3DrvHlp_SSMDeregister: caller='%s'/%d: returns %Vrc\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc));
941	return rc;
942	}
943
944
945	/** @copydoc PDMDRVHLP::pfnSTAMRegister */
946	static DECLCALLBACK(void) pdmR3DrvHlp_STAMRegister(PPDMDRVINS pDrvIns, void pvSample, STAMTYPE enmType, const char pszName, STAMUNIT enmUnit, const char *pszDesc)
947	{
948	PDMDRV_ASSERT_DRVINS(pDrvIns);
949	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
950
951	STAM_REG(pDrvIns->Internal.s.pVM, pvSample, enmType, pszName, enmUnit, pszDesc);
952	/** @todo track the samples so they can be dumped & deregistered when the driver instance is destroyed.
953	* For now we just have to be careful not to use this call for drivers which can be unloaded. */
954	}
955
956
957	/** @copydoc PDMDRVHLP::pfnSTAMRegisterF */
958	static DECLCALLBACK(void) pdmR3DrvHlp_STAMRegisterF(PPDMDRVINS pDrvIns, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility,
959	STAMUNIT enmUnit, const char pszDesc, const char pszName, ...)
960	{
961	PDMDRV_ASSERT_DRVINS(pDrvIns);
962	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
963
964	va_list args;
965	va_start(args, pszName);
966	int rc = STAMR3RegisterV(pDrvIns->Internal.s.pVM, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, args);
967	va_end(args);
968	AssertRC(rc);
969	}
970
971
972	/** @copydoc PDMDRVHLP::pfnSTAMRegisterV */
973	static DECLCALLBACK(void) pdmR3DrvHlp_STAMRegisterV(PPDMDRVINS pDrvIns, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility,
974	STAMUNIT enmUnit, const char pszDesc, const char pszName, va_list args)
975	{
976	PDMDRV_ASSERT_DRVINS(pDrvIns);
977	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
978
979	int rc = STAMR3RegisterV(pDrvIns->Internal.s.pVM, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, args);
980	AssertRC(rc);
981	}
982
983
984	/** @copydoc PDMDRVHLP::pfnSUPCallVMMR0Ex */
985	static DECLCALLBACK(int) pdmR3DrvHlp_SUPCallVMMR0Ex(PPDMDRVINS pDrvIns, unsigned uOperation, void *pvArg, unsigned cbArg)
986	{
987	PDMDRV_ASSERT_DRVINS(pDrvIns);
988	LogFlow(("pdmR3DrvHlp_SSMCallVMMR0Ex: caller='%s'/%d: uOperation=%u pvArg=%p cbArg=%d\n",
989	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, uOperation, pvArg, cbArg));
990	int rc;
991	if ( uOperation >= VMMR0_DO_SRV_START
992	&& uOperation < VMMR0_DO_SRV_END)
993	rc = SUPCallVMMR0Ex(pDrvIns->Internal.s.pVM->pVMR0, uOperation, 0, (PSUPVMMR0REQHDR)pvArg);
994	else
995	{
996	AssertMsgFailed(("Invalid uOperation=%u\n", uOperation));
997	rc = VERR_INVALID_PARAMETER;
998	}
999
1000	LogFlow(("pdmR3DrvHlp_SUPCallVMMR0Ex: caller='%s'/%d: returns %Vrc\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc));
1001	return rc;
1002	}
1003
1004
1005	/** @copydoc PDMDRVHLP::pfnUSBRegisterHub */
1006	static DECLCALLBACK(int) pdmR3DrvHlp_USBRegisterHub(PPDMDRVINS pDrvIns, void pvReservedIn, void *ppvReservedHlp)
1007	{
1008	PDMDRV_ASSERT_DRVINS(pDrvIns);
1009	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
1010	LogFlow(("pdmR3DrvHlp_USBRegisterHub: caller='%s'/%d: pvReservedIn=%p ppvReservedHlp=%p\n",
1011	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pvReservedIn, ppvReservedHlp));
1012
1013	/// @todo int rc = PDMUSBRegisterHub(pDrvIns->Internal.s.pVM, pvReservedIn, ppvReservedHlp);
1014	int rc = VINF_SUCCESS;
1015
1016	LogFlow(("pdmR3DrvHlp_USBRegisterHub: caller='%s'/%d: returns %Vrc\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc));
1017	return rc;
1018	}
1019
1020
1021	/** @copydoc PDMDRVHLP::pfnPDMThreadCreate */
1022	static DECLCALLBACK(int) pdmR3DrvHlp_PDMThreadCreate(PPDMDRVINS pDrvIns, PPPDMTHREAD ppThread, void *pvUser, PFNPDMTHREADDRV pfnThread,
1023	PFNPDMTHREADWAKEUPDRV pfnWakeup, size_t cbStack, RTTHREADTYPE enmType, const char *pszName)
1024	{
1025	PDMDRV_ASSERT_DRVINS(pDrvIns);
1026	VM_ASSERT_EMT(pDrvIns->Internal.s.pVM);
1027	LogFlow(("pdmR3DrvHlp_PDMThreadCreate: caller='%s'/%d: ppThread=%p pvUser=%p pfnThread=%p pfnWakeup=%p cbStack=%#zx enmType=%d pszName=%p:{%s}\n",
1028	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, ppThread, pvUser, pfnThread, pfnWakeup, cbStack, enmType, pszName, pszName));
1029
1030	int rc = pdmR3ThreadCreateDriver(pDrvIns->Internal.s.pVM, pDrvIns, ppThread, pvUser, pfnThread, pfnWakeup, cbStack, enmType, pszName);
1031
1032	LogFlow(("pdmR3DrvHlp_PDMThreadCreate: caller='%s'/%d: returns %Vrc *ppThread=%RTthrd\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance,
1033	rc, *ppThread));
1034	return rc;
1035	}
1036

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source: vbox/trunk/src/VBox/VMM/PDMDriver.cpp@ 5283

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