PDMInternal.h@ 1995

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1	/* $Id: PDMInternal.h 1447 2007-03-13 15:52:59Z vboxsync $ */
2	/** @file
3	* PDM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2006 InnoTek Systemberatung 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	* If you received this file as part of a commercial VirtualBox
18	* distribution, then only the terms of your commercial VirtualBox
19	* license agreement apply instead of the previous paragraph.
20	*/
21
22	#ifndef __PDMInternal_h__
23	#define __PDMInternal_h__
24
25	#include <VBox/cdefs.h>
26	#include <VBox/types.h>
27	#include <VBox/param.h>
28	#include <VBox/cfgm.h>
29	#include <VBox/stam.h>
30	#include <iprt/critsect.h>
31
32	__BEGIN_DECLS
33
34
35	/** @defgroup grp_pdm_int Internal
36	* @ingroup grp_pdm
37	* @internal
38	* @{
39	*/
40
41	/** Pointer to a PDM Device. */
42	typedef struct PDMDEV *PPDMDEV;
43	/** Pointer to a pointer to a PDM Device. */
44	typedef PPDMDEV *PPPDMDEV;
45
46	/** Pointer to a PDM Driver. */
47	typedef struct PDMDRV *PPDMDRV;
48	/** Pointer to a pointer to a PDM Driver. */
49	typedef PPDMDRV *PPPDMDRV;
50
51	/** Pointer to a PDM Logical Unit. */
52	typedef struct PDMLUN *PPDMLUN;
53	/** Pointer to a pointer to a PDM Logical Unit. */
54	typedef PPDMLUN *PPPDMLUN;
55
56	/** Pointer to a PDM PCI Bus instance. */
57	typedef struct PDMPCIBUS *PPDMPCIBUS;
58	/** Pointer to a DMAC instance. */
59	typedef struct PDMDMAC *PPDMDMAC;
60	/** Pointer to a RTC instance. */
61	typedef struct PDMRTC *PPDMRTC;
62
63
64	/**
65	* Private instance data.
66	*/
67	typedef struct PDMDEVINSINT
68	{
69	/** Pointer to the next instance (HC Ptr).
70	* (Head is pointed to by PDM::pDevInstances.) */
71	HCPTRTYPE(PPDMDEVINS) pNextHC;
72	/** Pointer to the next per device instance (HC Ptr).
73	* (Head is pointed to by PDMDEV::pInstances.) */
74	HCPTRTYPE(PPDMDEVINS) pPerDeviceNextHC;
75
76	/** Pointer to device structure - HC Ptr. */
77	HCPTRTYPE(PPDMDEV) pDevHC;
78
79	/** Pointer to the VM this instance was created for - HC Ptr. */
80	HCPTRTYPE(PVM) pVMHC;
81	/** Pointer to the list of logical units associated with the device. (FIFO) */
82	HCPTRTYPE(PPDMLUN) pLunsHC;
83	/** Configuration handle to the instance node. */
84	HCPTRTYPE(PCFGMNODE) pCfgHandle;
85	/** HC pointer to associated PCI device structure. */
86	HCPTRTYPE(struct PCIDevice *) pPciDeviceHC;
87	/** HC pointer to associated PCI bus structure. */
88	HCPTRTYPE(PPDMPCIBUS) pPciBusHC;
89
90	/** GC pointer to associated PCI device structure. */
91	GCPTRTYPE(struct PCIDevice *) pPciDeviceGC;
92	/** Pointer to the VM this instance was created for - GC Ptr. */
93	GCPTRTYPE(PVM) pVMGC;
94	/** GC pointer to associated PCI bus structure. */
95	GCPTRTYPE(PPDMPCIBUS) pPciBusGC;
96	#if GC_ARCH_BITS == 32
97	uint32_t Alignment0;
98	#endif
99	} PDMDEVINSINT;
100
101
102	/**
103	* Private instance data.
104	*/
105	typedef struct PDMDRVINSINT
106	{
107	/** Pointer to the driver instance above.
108	* This is NULL for the topmost drive. */
109	PPDMDRVINS pUp;
110	/** Pointer to the driver instance below.
111	* This is NULL for the bottommost driver. */
112	PPDMDRVINS pDown;
113	/** Pointer to the logical unit this driver chained on. */
114	PPDMLUN pLun;
115	/** Pointer to driver structure from which this was instantiated. */
116	PPDMDRV pDrv;
117	/** Pointer to the VM this instance was created for. */
118	PVM pVM;
119	/** Flag indicating that the driver is being detached and destroyed.
120	* (Helps detect potential recursive detaching.) */
121	bool fDetaching;
122	/** Configuration handle to the instance node. */
123	PCFGMNODE pCfgHandle;
124
125	} PDMDRVINSINT;
126
127
128	/**
129	* Private critical section data.
130	*/
131	typedef struct PDMCRITSECTINT
132	{
133	/** The critical section core which is shared with IPRT. */
134	RTCRITSECT Core;
135	/** Pointer to the next critical section.
136	* This chain is used for relocating pVMGC and device cleanup. */
137	R3PTRTYPE(struct PDMCRITSECTINT *) pNext;
138	/** Owner identifier.
139	* This is pDevIns if the owner is a device. Similarily for a driver or service.
140	* PDMR3CritSectInit() sets this to point to the critsect itself. */
141	RTR3PTR pvKey;
142	/** Pointer to the VM - R3Ptr. */
143	R3PTRTYPE(PVM) pVMR3;
144	/** Pointer to the VM - R0Ptr. */
145	R0PTRTYPE(PVM) pVMR0;
146	/** Pointer to the VM - GCPtr. */
147	GCPTRTYPE(PVM) pVMGC;
148	#if GC_ARCH_BITS == 32
149	uint32_t u32Padding;
150	#endif
151	/** R0/GC lock contention. */
152	STAMCOUNTER StatContentionR0GCLock;
153	/** R0/GC unlock contention. */
154	STAMCOUNTER StatContentionR0GCUnlock;
155	/** R3 lock contention. */
156	STAMCOUNTER StatContentionR3;
157	/** Profiling the time the section is locked. */
158	STAMPROFILEADV StatLocked;
159	} PDMCRITSECTINT, *PPDMCRITSECTINT;
160
161
162	/* Must be included after PDMDEVINSINT is defined. */
163	#define PDMDEVINSINT_DECLARED
164	#define PDMDRVINSINT_DECLARED
165	#define PDMCRITSECTINT_DECLARED
166	#ifdef __VBox_pdm_h__
167	# error "Invalid header PDM order. Include PDMInternal.h before VBox/pdm.h!"
168	#endif
169	#include <VBox/pdm.h>
170
171
172
173	/**
174	* PDM Logical Unit.
175	*
176	* This typically the representation of a physical port on a
177	* device, like for instance the PS/2 keyboard port on the
178	* keyboard controller device. The LUNs are chained on the
179	* device the belong to (PDMDEVINSINT::pLunsHC).
180	*/
181	typedef struct PDMLUN
182	{
183	/** The LUN - The Logical Unit Number. */
184	RTUINT iLun;
185	/** Pointer to the next LUN. */
186	PPDMLUN pNext;
187	/** Pointer to the top driver in the driver chain. */
188	PPDMDRVINS pTop;
189	/** Pointer to the device instance which the LUN belongs to. */
190	PPDMDEVINS pDevIns;
191	/** Pointer to the device base interface. */
192	PPDMIBASE pBase;
193	/** Description of this LUN. */
194	const char *pszDesc;
195	} PDMLUN;
196
197
198	/**
199	* PDM Device.
200	*/
201	typedef struct PDMDEV
202	{
203	/** Pointer to the next device (HC Ptr). */
204	HCPTRTYPE(PPDMDEV) pNext;
205	/** Device name length. (search optimization) */
206	RTUINT cchName;
207	/** Registration structure. */
208	HCPTRTYPE(const struct PDMDEVREG *) pDevReg;
209	/** Number of instances. */
210	RTUINT cInstances;
211	/** Pointer to chain of instances (HC Ptr). */
212	HCPTRTYPE(PPDMDEVINS) pInstances;
213
214	} PDMDEV;
215
216
217	/**
218	* PDM Driver.
219	*/
220	typedef struct PDMDRV
221	{
222	/** Pointer to the next device. */
223	PPDMDRV pNext;
224	/** Registration structure. */
225	const struct PDMDRVREG *pDrvReg;
226	/** Number of instances. */
227	RTUINT cInstances;
228
229	} PDMDRV;
230
231
232	/**
233	* PDM registered PIC device.
234	*/
235	typedef struct PDMPIC
236	{
237	/** Pointer to the PIC device instance - HC. */
238	HCPTRTYPE(PPDMDEVINS) pDevInsR3;
239	/** @copydoc PDMPICREG::pfnSetIrqHC */
240	DECLR3CALLBACKMEMBER(void, pfnSetIrqR3,(PPDMDEVINS pDevIns, int iIrq, int iLevel));
241	/** @copydoc PDMPICREG::pfnGetInterruptHC */
242	DECLR3CALLBACKMEMBER(int, pfnGetInterruptR3,(PPDMDEVINS pDevIns));
243
244	/** Pointer to the PIC device instance - R0. */
245	R0PTRTYPE(PPDMDEVINS) pDevInsR0;
246	/** @copydoc PDMPICREG::pfnSetIrqHC */
247	DECLR0CALLBACKMEMBER(void, pfnSetIrqR0,(PPDMDEVINS pDevIns, int iIrq, int iLevel));
248	/** @copydoc PDMPICREG::pfnGetInterruptHC */
249	DECLR0CALLBACKMEMBER(int, pfnGetInterruptR0,(PPDMDEVINS pDevIns));
250
251	/** Pointer to the PIC device instance - GC. */
252	GCPTRTYPE(PPDMDEVINS) pDevInsGC;
253	/** @copydoc PDMPICREG::pfnSetIrqHC */
254	DECLGCCALLBACKMEMBER(void, pfnSetIrqGC,(PPDMDEVINS pDevIns, int iIrq, int iLevel));
255	/** @copydoc PDMPICREG::pfnGetInterruptHC */
256	DECLGCCALLBACKMEMBER(int, pfnGetInterruptGC,(PPDMDEVINS pDevIns));
257	#if GC_ARCH_BITS == 32
258	RTGCPTR GCPtrPadding; /*< Alignment padding. /
259	#endif
260	} PDMPIC;
261
262
263	/**
264	* PDM registered APIC device.
265	*/
266	typedef struct PDMAPIC
267	{
268	/** Pointer to the APIC device instance - HC Ptr. */
269	PPDMDEVINSHC pDevInsR3;
270	/** @copydoc PDMAPICREG::pfnGetInterruptHC */
271	DECLR3CALLBACKMEMBER(int, pfnGetInterruptR3,(PPDMDEVINS pDevIns));
272	/** @copydoc PDMAPICREG::pfnSetBaseHC */
273	DECLR3CALLBACKMEMBER(void, pfnSetBaseR3,(PPDMDEVINS pDevIns, uint64_t u64Base));
274	/** @copydoc PDMAPICREG::pfnGetBaseHC */
275	DECLR3CALLBACKMEMBER(uint64_t, pfnGetBaseR3,(PPDMDEVINS pDevIns));
276	/** @copydoc PDMAPICREG::pfnSetTPRHC */
277	DECLR3CALLBACKMEMBER(void, pfnSetTPRR3,(PPDMDEVINS pDevIns, uint8_t u8TPR));
278	/** @copydoc PDMAPICREG::pfnGetTPRHC */
279	DECLR3CALLBACKMEMBER(uint8_t, pfnGetTPRR3,(PPDMDEVINS pDevIns));
280	/** @copydoc PDMAPICREG::pfnBusDeliverHC */
281	DECLR3CALLBACKMEMBER(void, pfnBusDeliverR3,(PPDMDEVINS pDevIns, uint8_t u8Dest, uint8_t u8DestMode, uint8_t u8DeliveryMode,
282	uint8_t iVector, uint8_t u8Polarity, uint8_t u8TriggerMode));
283
284	/** Pointer to the PIC device instance - R0. */
285	R0PTRTYPE(PPDMDEVINS) pDevInsR0;
286	/** @copydoc PDMAPICREG::pfnGetInterruptHC */
287	DECLR0CALLBACKMEMBER(int, pfnGetInterruptR0,(PPDMDEVINS pDevIns));
288	/** @copydoc PDMAPICREG::pfnSetBaseHC */
289	DECLR0CALLBACKMEMBER(void, pfnSetBaseR0,(PPDMDEVINS pDevIns, uint64_t u64Base));
290	/** @copydoc PDMAPICREG::pfnGetBaseHC */
291	DECLR0CALLBACKMEMBER(uint64_t, pfnGetBaseR0,(PPDMDEVINS pDevIns));
292	/** @copydoc PDMAPICREG::pfnSetTPRHC */
293	DECLR0CALLBACKMEMBER(void, pfnSetTPRR0,(PPDMDEVINS pDevIns, uint8_t u8TPR));
294	/** @copydoc PDMAPICREG::pfnGetTPRHC */
295	DECLR0CALLBACKMEMBER(uint8_t, pfnGetTPRR0,(PPDMDEVINS pDevIns));
296	/** @copydoc PDMAPICREG::pfnBusDeliverHC */
297	DECLR0CALLBACKMEMBER(void, pfnBusDeliverR0,(PPDMDEVINS pDevIns, uint8_t u8Dest, uint8_t u8DestMode, uint8_t u8DeliveryMode,
298	uint8_t iVector, uint8_t u8Polarity, uint8_t u8TriggerMode));
299
300	/** Pointer to the APIC device instance - GC Ptr. */
301	PPDMDEVINSGC pDevInsGC;
302	/** @copydoc PDMAPICREG::pfnGetInterruptHC */
303	DECLGCCALLBACKMEMBER(int, pfnGetInterruptGC,(PPDMDEVINS pDevIns));
304	/** @copydoc PDMAPICREG::pfnSetBaseHC */
305	DECLGCCALLBACKMEMBER(void, pfnSetBaseGC,(PPDMDEVINS pDevIns, uint64_t u64Base));
306	/** @copydoc PDMAPICREG::pfnGetBaseHC */
307	DECLGCCALLBACKMEMBER(uint64_t, pfnGetBaseGC,(PPDMDEVINS pDevIns));
308	/** @copydoc PDMAPICREG::pfnSetTPRHC */
309	DECLGCCALLBACKMEMBER(void, pfnSetTPRGC,(PPDMDEVINS pDevIns, uint8_t u8TPR));
310	/** @copydoc PDMAPICREG::pfnGetTPRHC */
311	DECLGCCALLBACKMEMBER(uint8_t, pfnGetTPRGC,(PPDMDEVINS pDevIns));
312	/** @copydoc PDMAPICREG::pfnBusDeliverHC */
313	DECLGCCALLBACKMEMBER(void, pfnBusDeliverGC,(PPDMDEVINS pDevIns, uint8_t u8Dest, uint8_t u8DestMode, uint8_t u8DeliveryMode,
314	uint8_t iVector, uint8_t u8Polarity, uint8_t u8TriggerMode));
315	#if GC_ARCH_BITS == 32
316	RTGCPTR GCPtrPadding; /*< Alignment padding. /
317	#endif
318	} PDMAPIC;
319
320
321	/**
322	* PDM registered I/O APIC device.
323	*/
324	typedef struct PDMIOAPIC
325	{
326	/** Pointer to the APIC device instance - HC Ptr. */
327	PPDMDEVINSHC pDevInsR3;
328	/** @copydoc PDMIOAPICREG::pfnSetIrqHC */
329	DECLR3CALLBACKMEMBER(void, pfnSetIrqR3,(PPDMDEVINS pDevIns, int iIrq, int iLevel));
330
331	/** Pointer to the PIC device instance - R0. */
332	R0PTRTYPE(PPDMDEVINS) pDevInsR0;
333	/** @copydoc PDMIOAPICREG::pfnSetIrqHC */
334	DECLR0CALLBACKMEMBER(void, pfnSetIrqR0,(PPDMDEVINS pDevIns, int iIrq, int iLevel));
335
336	/** Pointer to the APIC device instance - GC Ptr. */
337	PPDMDEVINSGC pDevInsGC;
338	/** @copydoc PDMIOAPICREG::pfnSetIrqHC */
339	DECLGCCALLBACKMEMBER(void, pfnSetIrqGC,(PPDMDEVINS pDevIns, int iIrq, int iLevel));
340	} PDMIOAPIC;
341
342
343	/**
344	* PDM PCI Bus instance.
345	*/
346	typedef struct PDMPCIBUS
347	{
348	/** PCI bus number. */
349	RTUINT iBus;
350	RTUINT uPadding0; /*< Alignment padding./
351
352	/** Pointer to PCI Bus device instance. */
353	PPDMDEVINSHC pDevInsR3;
354	/** @copydoc PDMPCIBUSREG::pfnSetIrqHC */
355	DECLR3CALLBACKMEMBER(void, pfnSetIrqR3,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, int iIrq, int iLevel));
356	/** @copydoc PDMPCIBUSREG::pfnRegisterHC */
357	DECLR3CALLBACKMEMBER(int, pfnRegisterR3,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, const char *pszName, int iDev));
358	/** @copydoc PDMPCIBUSREG::pfnIORegionRegisterHC */
359	DECLR3CALLBACKMEMBER(int, pfnIORegionRegisterR3,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, int iRegion, uint32_t cbRegion,
360	PCIADDRESSSPACE enmType, PFNPCIIOREGIONMAP pfnCallback));
361	/** @copydoc PDMPCIBUSREG::pfnSaveExecHC */
362	DECLR3CALLBACKMEMBER(int, pfnSaveExecR3,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, PSSMHANDLE pSSMHandle));
363	/** @copydoc PDMPCIBUSREG::pfnLoadExecHC */
364	DECLR3CALLBACKMEMBER(int, pfnLoadExecR3,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, PSSMHANDLE pSSMHandle));
365	/** @copydoc PDMPCIBUSREG::pfnFakePCIBIOSHC */
366	DECLR3CALLBACKMEMBER(int, pfnFakePCIBIOSR3,(PPDMDEVINS pDevIns));
367
368	/** Pointer to the PIC device instance - R0. */
369	R0PTRTYPE(PPDMDEVINS) pDevInsR0;
370	/** @copydoc PDMPCIBUSREG::pfnSetIrqHC */
371	DECLR0CALLBACKMEMBER(void, pfnSetIrqR0,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, int iIrq, int iLevel));
372
373	/** Pointer to PCI Bus device instance. */
374	PPDMDEVINSGC pDevInsGC;
375	/** @copydoc PDMPCIBUSREG::pfnSetIrqHC */
376	DECLGCCALLBACKMEMBER(void, pfnSetIrqGC,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, int iIrq, int iLevel));
377	} PDMPCIBUS;
378
379
380	#ifdef IN_RING3
381	/**
382	* PDM registered DMAC (DMA Controller) device.
383	*/
384	typedef struct PDMDMAC
385	{
386	/** Pointer to the DMAC device instance. */
387	PPDMDEVINS pDevIns;
388	/** Copy of the registration structure. */
389	PDMDMACREG Reg;
390	} PDMDMAC;
391
392
393	/**
394	* PDM registered RTC (Real Time Clock) device.
395	*/
396	typedef struct PDMRTC
397	{
398	/** Pointer to the RTC device instance. */
399	PPDMDEVINS pDevIns;
400	/** Copy of the registration structure. */
401	PDMRTCREG Reg;
402	} PDMRTC;
403
404	#endif /* IN_RING3 */
405
406	/**
407	* Module type.
408	*/
409	typedef enum PDMMODTYPE
410	{
411	/** Guest context module. */
412	PDMMOD_TYPE_GC,
413	/** Ring-0 (host) context module. */
414	PDMMOD_TYPE_R0,
415	/** Ring-3 (host) context module. */
416	PDMMOD_TYPE_R3
417	} PDMMODTYPE, *PPDMMODTYPE;
418
419
420	/** The module name length including the terminator. */
421	#define PDMMOD_NAME_LEN 32
422
423	/**
424	* Loaded module instance.
425	*/
426	typedef struct PDMMOD
427	{
428	/** Module name. This is used for refering to
429	* the module internally, sort of like a handle. */
430	char szName[PDMMOD_NAME_LEN];
431	/** Module type. */
432	PDMMODTYPE eType;
433	/** Loader module handle. Not used for R0 modules. */
434	RTLDRMOD hLdrMod;
435	/** Loaded address.
436	* This is the 'handle' for R0 modules. */
437	RTUINTPTR ImageBase;
438	/** Old loaded address.
439	* This is used during relocation of GC modules. Not used for R0 modules. */
440	RTUINTPTR OldImageBase;
441	/** Where the R3 HC bits are stored.
442	* This can be equal to ImageBase but doesn't have to. Not used for R0 modules. */
443	void *pvBits;
444
445	/** Pointer to next module. */
446	struct PDMMOD *pNext;
447	/** Module filename. */
448	char szFilename[1];
449	} PDMMOD;
450	/** Pointer to loaded module instance. */
451	typedef PDMMOD *PPDMMOD;
452
453
454
455	/** Extra space in the free array. */
456	#define PDMQUEUE_FREE_SLACK 16
457
458	/**
459	* Queue type.
460	*/
461	typedef enum PDMQUEUETYPE
462	{
463	/** Device consumer. */
464	PDMQUEUETYPE_DEV = 1,
465	/** Driver consumer. */
466	PDMQUEUETYPE_DRV,
467	/** Internal consumer. */
468	PDMQUEUETYPE_INTERNAL,
469	/** External consumer. */
470	PDMQUEUETYPE_EXTERNAL
471	} PDMQUEUETYPE;
472
473	/** Pointer to a PDM Queue. */
474	typedef struct PDMQUEUE *PPDMQUEUE;
475
476	/**
477	* PDM Queue.
478	*/
479	typedef struct PDMQUEUE
480	{
481	/** Pointer to the next queue in the list. */
482	HCPTRTYPE(PPDMQUEUE) pNext;
483	/** Type specific data. */
484	union
485	{
486	/** PDMQUEUETYPE_DEV */
487	struct
488	{
489	/** Pointer to consumer function. */
490	HCPTRTYPE(PFNPDMQUEUEDEV) pfnCallback;
491	/** Pointer to the device instance owning the queue. */
492	HCPTRTYPE(PPDMDEVINS) pDevIns;
493	} Dev;
494	/** PDMQUEUETYPE_DRV */
495	struct
496	{
497	/** Pointer to consumer function. */
498	HCPTRTYPE(PFNPDMQUEUEDRV) pfnCallback;
499	/** Pointer to the driver instance owning the queue. */
500	HCPTRTYPE(PPDMDRVINS) pDrvIns;
501	} Drv;
502	/** PDMQUEUETYPE_INTERNAL */
503	struct
504	{
505	/** Pointer to consumer function. */
506	HCPTRTYPE(PFNPDMQUEUEINT) pfnCallback;
507	} Int;
508	/** PDMQUEUETYPE_EXTERNAL */
509	struct
510	{
511	/** Pointer to consumer function. */
512	HCPTRTYPE(PFNPDMQUEUEEXT) pfnCallback;
513	/** Pointer to user argument. */
514	HCPTRTYPE(void *) pvUser;
515	} Ext;
516	} u;
517	/** Queue type. */
518	PDMQUEUETYPE enmType;
519	/** The interval between checking the queue for events.
520	* The realtime timer below is used to do the waiting.
521	* If 0, the queue will use the VM_FF_PDM_QUEUE forced action. */
522	uint32_t cMilliesInterval;
523	/** Interval timer. Only used if cMilliesInterval is non-zero. */
524	PTMTIMERHC pTimer;
525	/** Pointer to the VM. */
526	HCPTRTYPE(PVM) pVMHC;
527	/** LIFO of pending items - HC. */
528	HCPTRTYPE(PPDMQUEUEITEMCORE) volatile pPendingHC;
529	/** Pointer to the GC VM and indicator for GC enabled queue.
530	* If this is NULL, the queue cannot be used in GC.
531	*/
532	GCPTRTYPE(PVM) pVMGC;
533	/** LIFO of pending items - GC. */
534	GCPTRTYPE(PPDMQUEUEITEMCORE) pPendingGC;
535	/** Item size (bytes). */
536	RTUINT cbItem;
537	/** Number of items in the queue. */
538	RTUINT cItems;
539	/** Index to the free head (where we insert). */
540	uint32_t volatile iFreeHead;
541	/** Index to the free tail (where we remove). */
542	uint32_t volatile iFreeTail;
543	/** Array of pointers to free items. Variable size. */
544	struct PDMQUEUEFREEITEM
545	{
546	/** Pointer to the free item - HC Ptr. */
547	HCPTRTYPE(PPDMQUEUEITEMCORE) volatile pItemHC;
548	/** Pointer to the free item - GC Ptr. */
549	GCPTRTYPE(PPDMQUEUEITEMCORE) volatile pItemGC;
550	#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
551	uint32_t Alignment0;
552	#endif
553	} aFreeItems[1];
554	} PDMQUEUE;
555
556
557	/**
558	* Queue device helper task operation.
559	*/
560	typedef enum PDMDEVHLPTASKOP
561	{
562	/** The usual invalid 0 entry. */
563	PDMDEVHLPTASKOP_INVALID = 0,
564	/** ISASetIrq */
565	PDMDEVHLPTASKOP_ISA_SET_IRQ,
566	/** PCISetIrq */
567	PDMDEVHLPTASKOP_PCI_SET_IRQ,
568	/** PCISetIrq */
569	PDMDEVHLPTASKOP_IOAPIC_SET_IRQ,
570	/** The usual 32-bit hack. */
571	PDMDEVHLPTASKOP_32BIT_HACK = 0x7fffffff
572	} PDMDEVHLPTASKOP;
573
574	/**
575	* Queued Device Helper Task.
576	*/
577	typedef struct PDMDEVHLPTASK
578	{
579	/** The queue item core (don't touch). */
580	PDMQUEUEITEMCORE Core;
581	/** Pointer to the device instance (HC Ptr). */
582	HCPTRTYPE(PPDMDEVINS) pDevInsHC;
583	/** This operation to perform. */
584	PDMDEVHLPTASKOP enmOp;
585	#if HC_ARCH_BITS == 64
586	uint32_t Alignment0;
587	#endif
588	/** Parameters to the operation. */
589	union PDMDEVHLPTASKPARAMS
590	{
591	/**
592	* PDMDEVHLPTASKOP_ISA_SET_IRQ and PDMDEVHLPTASKOP_PCI_SET_IRQ.
593	*/
594	struct PDMDEVHLPTASKSETIRQ
595	{
596	/** The IRQ */
597	int iIrq;
598	/** The new level. */
599	int iLevel;
600	} SetIRQ;
601	} u;
602	} PDMDEVHLPTASK;
603	/** Pointer to a queued Device Helper Task. */
604	typedef PDMDEVHLPTASK *PPDMDEVHLPTASK;
605	/** Pointer to a const queued Device Helper Task. */
606	typedef const PDMDEVHLPTASK *PCPDMDEVHLPTASK;
607
608
609
610	/**
611	* Converts a PDM pointer into a VM pointer.
612	* @returns Pointer to the VM structure the PDM is part of.
613	* @param pPDM Pointer to PDM instance data.
614	*/
615	#define PDM2VM(pPDM) ( (PVM)((char*)pPDM - pPDM->offVM) )
616
617
618	/**
619	* PDM VM Instance data.
620	* Changes to this must checked against the padding of the cfgm union in VM!
621	*/
622	typedef struct PDM
623	{
624	/** Offset to the VM structure.
625	* See PDM2VM(). */
626	RTUINT offVM;
627	RTUINT uPadding0; /*< Alignment padding./
628
629	/** Pointer to list of loaded modules. This is HC only! */
630	HCPTRTYPE(PPDMMOD) pModules;
631
632	/** List of registered devices. (FIFO) */
633	HCPTRTYPE(PPDMDEV) pDevs;
634	/** List of devices instances. (FIFO) */
635	HCPTRTYPE(PPDMDEVINS) pDevInstances;
636	/** List of registered drivers. (FIFO) */
637	HCPTRTYPE(PPDMDRV) pDrvs;
638	/** List of initialized critical sections. (LIFO) */
639	HCPTRTYPE(PPDMCRITSECTINT) pCritSects;
640	/** PCI Buses. */
641	PDMPCIBUS aPciBuses[1];
642	/** The register PIC device. */
643	PDMPIC Pic;
644	/** The registerd APIC device. */
645	PDMAPIC Apic;
646	/** The registerd I/O APIC device. */
647	PDMIOAPIC IoApic;
648	/** The registered DMAC device. */
649	HCPTRTYPE(PPDMDMAC) pDmac;
650	/** The registered RTC device. */
651	HCPTRTYPE(PPDMRTC) pRtc;
652
653	/** Queue in which devhlp tasks are queued for R3 execution - HC Ptr. */
654	HCPTRTYPE(PPDMQUEUE) pDevHlpQueueHC;
655	/** Queue in which devhlp tasks are queued for R3 execution - GC Ptr. */
656	GCPTRTYPE(PPDMQUEUE) pDevHlpQueueGC;
657
658	/** The number of entries in the apQueuedCritSectsLeaves table that's currnetly in use. */
659	RTUINT cQueuedCritSectLeaves;
660	/** Critical sections queued in GC/R0 because of contention preventing leave to complete. (R3 Ptrs)
661	* We will return to Ring-3 ASAP, so this queue doesn't has to be very long. */
662	R3PTRTYPE(PPDMCRITSECT) apQueuedCritSectsLeaves[8];
663
664	/** Linked list of timer driven PDM queues. */
665	HCPTRTYPE(struct PDMQUEUE *) pQueuesTimer;
666	/** Linked list of force action driven PDM queues. */
667	HCPTRTYPE(struct PDMQUEUE *) pQueuesForced;
668	/** Pointer to the queue which should be manually flushed - HCPtr.
669	* Only touched by EMT. */
670	HCPTRTYPE(struct PDMQUEUE *) pQueueFlushHC;
671	/** Pointer to the queue which should be manually flushed - GCPtr. */
672	GCPTRTYPE(struct PDMQUEUE *) pQueueFlushGC;
673
674	/** TEMPORARY HACKS FOR NETWORK POLLING.
675	* @todo fix NAT and kill this!
676	* @{ */
677	RTUINT cPollers;
678	HCPTRTYPE(PFNPDMDRVPOLLER) apfnPollers[16];
679	HCPTRTYPE(PPDMDRVINS) aDrvInsPollers[16];
680	PTMTIMERHC pTimerPollers;
681	/** @} */
682
683	#ifdef VBOX_WITH_PDM_LOCK
684	/** The PDM lock.
685	* This is used to protect everything that deals with interrupts, i.e.
686	* the PIC, APIC, IOAPIC and PCI devices pluss some PDM functions. */
687	PDMCRITSECT CritSect;
688	#endif
689
690
691	/** Number of times a critical section leave requesed needed to be queued for ring-3 execution. */
692	STAMCOUNTER StatQueuedCritSectLeaves;
693	} PDM;
694	/** Pointer to PDM VM instance data. */
695	typedef PDM *PPDM;
696
697
698
699	/*******************************************************************************
700	* Global Variables *
701	*******************************************************************************/
702	#ifdef IN_RING3
703	extern const PDMDRVHLP g_pdmR3DrvHlp;
704	#endif
705
706
707	/*******************************************************************************
708	* Internal Functions *
709	*******************************************************************************/
710	int pdmR3CritSectInit(PVM pVM);
711	int pdmR3CritSectTerm(PVM pVM);
712	void pdmR3CritSectRelocate(PVM pVM);
713	int pdmR3CritSectInitDevice(PVM pVM, PPDMDEVINS pDevIns, PPDMCRITSECT pCritSect, const char *pszName);
714	int pdmR3CritSectDeleteDevice(PVM pVM, PPDMDEVINS pDevIns);
715
716	int pdmR3DevInit(PVM pVM);
717	PPDMDEV pdmR3DevLookup(PVM pVM, const char *pszName);
718	int pdmR3DevFindLun(PVM pVM, const char pszDevice, unsigned iInstance, unsigned iLun, PPDMLUN ppLun);
719
720	int pdmR3DrvInit(PVM pVM);
721	int pdmR3DrvDetach(PPDMDRVINS pDrvIns);
722	PPDMDRV pdmR3DrvLookup(PVM pVM, const char *pszName);
723
724	int pdmR3LdrInit(PVM pVM);
725	void pdmR3LdrTerm(PVM pVM);
726	char * pdmR3FileR3(const char *pszFile, bool fShared = false);
727	int pdmR3LoadR3(PVM pVM, const char pszFilename, const char pszName);
728
729	void pdmR3QueueRelocate(PVM pVM, RTGCINTPTR offDelta);
730
731	#ifdef VBOX_WITH_PDM_LOCK
732	void pdmLock(PVM pVM);
733	int pdmLockEx(PVM pVM, int rc);
734	void pdmUnlock(PVM pVM);
735	#else
736	# define pdmLock(pVM) do {} while (0)
737	# define pdmLockEx(pVM, rc) (VINF_SUCCESS)
738	# define pdmUnlock(pVM) do {} while (0)
739	#endif
740
741	/** @} */
742
743	__END_DECLS
744
745	#endif

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source: vbox/trunk/src/VBox/VMM/PDMInternal.h@ 1995

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