PDMInternal.h@ 382

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1	/* $Id: PDMInternal.h 161 2007-01-18 18:25:45Z 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 VM this instance was created for - GC Ptr. */
82	GCPTRTYPE(PVM) pVMGC;
83
84	/** Pointer to the list of logical units associated with the device. (FIFO) */
85	HCPTRTYPE(PPDMLUN) pLunsHC;
86
87	/** Configuration handle to the instance node. */
88	HCPTRTYPE(PCFGMNODE) pCfgHandle;
89
90	/** HC pointer to associated PCI device structure. */
91	HCPTRTYPE(struct PCIDevice *) pPciDeviceHC;
92	/** GC pointer to associated PCI device structure. */
93	GCPTRTYPE(struct PCIDevice *) pPciDeviceGC;
94	/** HC pointer to associated PCI bus structure. */
95	HCPTRTYPE(PPDMPCIBUS) pPciBusHC;
96	/** GC pointer to associated PCI bus structure. */
97	GCPTRTYPE(PPDMPCIBUS) pPciBusGC;
98	} PDMDEVINSINT;
99
100
101	/**
102	* Private instance data.
103	*/
104	typedef struct PDMDRVINSINT
105	{
106	/** Pointer to the driver instance above.
107	* This is NULL for the topmost drive. */
108	PPDMDRVINS pUp;
109	/** Pointer to the driver instance below.
110	* This is NULL for the bottommost driver. */
111	PPDMDRVINS pDown;
112	/** Pointer to the logical unit this driver chained on. */
113	PPDMLUN pLun;
114	/** Pointer to driver structure from which this was instantiated. */
115	PPDMDRV pDrv;
116	/** Pointer to the VM this instance was created for. */
117	PVM pVM;
118	/** Flag indicating that the driver is being detached and destroyed.
119	* (Helps detect potential recursive detaching.) */
120	bool fDetaching;
121	/** Configuration handle to the instance node. */
122	PCFGMNODE pCfgHandle;
123
124	} PDMDRVINSINT;
125
126
127	/**
128	* Private critical section data.
129	*/
130	typedef struct PDMCRITSECTINT
131	{
132	/** The critical section core which is shared with IPRT. */
133	RTCRITSECT Core;
134	/** Pointer to the next critical section.
135	* This chain is used for relocating pVMGC and device cleanup. */
136	R3PTRTYPE(struct PDMCRITSECTINT *) pNext;
137	/** Owner identifier.
138	* This is pDevIns if the owner is a device. Similarily for a driver or service.
139	* PDMR3CritSectInit() sets this to point to the critsect itself. */
140	RTR3PTR pvKey;
141	/** Pointer to the VM - R3Ptr. */
142	R3PTRTYPE(PVM) pVMR3;
143	/** Pointer to the VM - R0Ptr. */
144	R0PTRTYPE(PVM) pVMR0;
145	/** Pointer to the VM - GCPtr. */
146	GCPTRTYPE(PVM) pVMGC;
147	#if GC_ARCH_BITS == 32
148	uint32_t u32Padding;
149	#endif
150	/** R0/GC lock contention. */
151	STAMCOUNTER StatContentionR0GCLock;
152	/** R0/GC unlock contention. */
153	STAMCOUNTER StatContentionR0GCUnlock;
154	/** R3 lock contention. */
155	STAMCOUNTER StatContentionR3;
156	/** Profiling the time the section is locked. */
157	STAMPROFILEADV StatLocked;
158	} PDMCRITSECTINT, *PPDMCRITSECTINT;
159
160
161	/* Must be included after PDMDEVINSINT is defined. */
162	#define PDMDEVINSINT_DECLARED
163	#define PDMDRVINSINT_DECLARED
164	#define PDMCRITSECTINT_DECLARED
165	#ifdef __VBox_pdm_h__
166	# error "Invalid header PDM order. Include PDMInternal.h before VBox/pdm.h!"
167	#endif
168	#include <VBox/pdm.h>
169
170
171
172	/**
173	* PDM Logical Unit.
174	*
175	* This typically the representation of a physical port on a
176	* device, like for instance the PS/2 keyboard port on the
177	* keyboard controller device. The LUNs are chained on the
178	* device the belong to (PDMDEVINSINT::pLunsHC).
179	*/
180	typedef struct PDMLUN
181	{
182	/** The LUN - The Logical Unit Number. */
183	RTUINT iLun;
184	/** Pointer to the next LUN. */
185	PPDMLUN pNext;
186	/** Pointer to the top driver in the driver chain. */
187	PPDMDRVINS pTop;
188	/** Pointer to the device instance which the LUN belongs to. */
189	PPDMDEVINS pDevIns;
190	/** Pointer to the device base interface. */
191	PPDMIBASE pBase;
192	/** Description of this LUN. */
193	const char *pszDesc;
194	} PDMLUN;
195
196
197	/**
198	* PDM Device.
199	*/
200	typedef struct PDMDEV
201	{
202	/** Pointer to the next device (HC Ptr). */
203	HCPTRTYPE(PPDMDEV) pNext;
204	/** Device name length. (search optimization) */
205	RTUINT cchName;
206	/** Registration structure. */
207	HCPTRTYPE(const struct PDMDEVREG *) pDevReg;
208	/** Number of instances. */
209	RTUINT cInstances;
210	/** Pointer to chain of instances (HC Ptr). */
211	HCPTRTYPE(PPDMDEVINS) pInstances;
212
213	} PDMDEV;
214
215
216	/**
217	* PDM Driver.
218	*/
219	typedef struct PDMDRV
220	{
221	/** Pointer to the next device. */
222	PPDMDRV pNext;
223	/** Registration structure. */
224	const struct PDMDRVREG *pDrvReg;
225	/** Number of instances. */
226	RTUINT cInstances;
227
228	} PDMDRV;
229
230
231	/**
232	* PDM registered PIC device.
233	*/
234	typedef struct PDMPIC
235	{
236	/** Pointer to the PIC device instance - HC. */
237	HCPTRTYPE(PPDMDEVINS) pDevInsR3;
238	/** @copydoc PDMPICREG::pfnSetIrqHC */
239	DECLR3CALLBACKMEMBER(void, pfnSetIrqR3,(PPDMDEVINS pDevIns, int iIrq, int iLevel));
240	/** @copydoc PDMPICREG::pfnGetInterruptHC */
241	DECLR3CALLBACKMEMBER(int, pfnGetInterruptR3,(PPDMDEVINS pDevIns));
242
243	/** Pointer to the PIC device instance - R0. */
244	R0PTRTYPE(PPDMDEVINS) pDevInsR0;
245	/** @copydoc PDMPICREG::pfnSetIrqHC */
246	DECLR0CALLBACKMEMBER(void, pfnSetIrqR0,(PPDMDEVINS pDevIns, int iIrq, int iLevel));
247	/** @copydoc PDMPICREG::pfnGetInterruptHC */
248	DECLR0CALLBACKMEMBER(int, pfnGetInterruptR0,(PPDMDEVINS pDevIns));
249
250	/** Pointer to the PIC device instance - GC. */
251	GCPTRTYPE(PPDMDEVINS) pDevInsGC;
252	/** @copydoc PDMPICREG::pfnSetIrqHC */
253	DECLGCCALLBACKMEMBER(void, pfnSetIrqGC,(PPDMDEVINS pDevIns, int iIrq, int iLevel));
254	/** @copydoc PDMPICREG::pfnGetInterruptHC */
255	DECLGCCALLBACKMEMBER(int, pfnGetInterruptGC,(PPDMDEVINS pDevIns));
256	#if GC_ARCH_BITS == 32
257	RTGCPTR GCPtrPadding; /*< Alignment padding. /
258	#endif
259	} PDMPIC;
260
261
262	/**
263	* PDM registered APIC device.
264	*/
265	typedef struct PDMAPIC
266	{
267	/** Pointer to the APIC device instance - HC Ptr. */
268	PPDMDEVINSHC pDevInsR3;
269	/** @copydoc PDMAPICREG::pfnGetInterruptHC */
270	DECLR3CALLBACKMEMBER(int, pfnGetInterruptR3,(PPDMDEVINS pDevIns));
271	/** @copydoc PDMAPICREG::pfnSetBaseHC */
272	DECLR3CALLBACKMEMBER(void, pfnSetBaseR3,(PPDMDEVINS pDevIns, uint64_t u64Base));
273	/** @copydoc PDMAPICREG::pfnGetBaseHC */
274	DECLR3CALLBACKMEMBER(uint64_t, pfnGetBaseR3,(PPDMDEVINS pDevIns));
275	/** @copydoc PDMAPICREG::pfnSetTPRHC */
276	DECLR3CALLBACKMEMBER(void, pfnSetTPRR3,(PPDMDEVINS pDevIns, uint8_t u8TPR));
277	/** @copydoc PDMAPICREG::pfnGetTPRHC */
278	DECLR3CALLBACKMEMBER(uint8_t, pfnGetTPRR3,(PPDMDEVINS pDevIns));
279	/** @copydoc PDMAPICREG::pfnBusDeliverHC */
280	DECLR3CALLBACKMEMBER(void, pfnBusDeliverR3,(PPDMDEVINS pDevIns, uint8_t u8Dest, uint8_t u8DestMode, uint8_t u8DeliveryMode,
281	uint8_t iVector, uint8_t u8Polarity, uint8_t u8TriggerMode));
282
283	/** Pointer to the PIC device instance - R0. */
284	R0PTRTYPE(PPDMDEVINS) pDevInsR0;
285	/** @copydoc PDMAPICREG::pfnGetInterruptHC */
286	DECLR0CALLBACKMEMBER(int, pfnGetInterruptR0,(PPDMDEVINS pDevIns));
287	/** @copydoc PDMAPICREG::pfnSetBaseHC */
288	DECLR0CALLBACKMEMBER(void, pfnSetBaseR0,(PPDMDEVINS pDevIns, uint64_t u64Base));
289	/** @copydoc PDMAPICREG::pfnGetBaseHC */
290	DECLR0CALLBACKMEMBER(uint64_t, pfnGetBaseR0,(PPDMDEVINS pDevIns));
291	/** @copydoc PDMAPICREG::pfnSetTPRHC */
292	DECLR0CALLBACKMEMBER(void, pfnSetTPRR0,(PPDMDEVINS pDevIns, uint8_t u8TPR));
293	/** @copydoc PDMAPICREG::pfnGetTPRHC */
294	DECLR0CALLBACKMEMBER(uint8_t, pfnGetTPRR0,(PPDMDEVINS pDevIns));
295	/** @copydoc PDMAPICREG::pfnBusDeliverHC */
296	DECLR0CALLBACKMEMBER(void, pfnBusDeliverR0,(PPDMDEVINS pDevIns, uint8_t u8Dest, uint8_t u8DestMode, uint8_t u8DeliveryMode,
297	uint8_t iVector, uint8_t u8Polarity, uint8_t u8TriggerMode));
298
299	/** Pointer to the APIC device instance - GC Ptr. */
300	PPDMDEVINSGC pDevInsGC;
301	/** @copydoc PDMAPICREG::pfnGetInterruptHC */
302	DECLGCCALLBACKMEMBER(int, pfnGetInterruptGC,(PPDMDEVINS pDevIns));
303	/** @copydoc PDMAPICREG::pfnSetBaseHC */
304	DECLGCCALLBACKMEMBER(void, pfnSetBaseGC,(PPDMDEVINS pDevIns, uint64_t u64Base));
305	/** @copydoc PDMAPICREG::pfnGetBaseHC */
306	DECLGCCALLBACKMEMBER(uint64_t, pfnGetBaseGC,(PPDMDEVINS pDevIns));
307	/** @copydoc PDMAPICREG::pfnSetTPRHC */
308	DECLGCCALLBACKMEMBER(void, pfnSetTPRGC,(PPDMDEVINS pDevIns, uint8_t u8TPR));
309	/** @copydoc PDMAPICREG::pfnGetTPRHC */
310	DECLGCCALLBACKMEMBER(uint8_t, pfnGetTPRGC,(PPDMDEVINS pDevIns));
311	/** @copydoc PDMAPICREG::pfnBusDeliverHC */
312	DECLGCCALLBACKMEMBER(void, pfnBusDeliverGC,(PPDMDEVINS pDevIns, uint8_t u8Dest, uint8_t u8DestMode, uint8_t u8DeliveryMode,
313	uint8_t iVector, uint8_t u8Polarity, uint8_t u8TriggerMode));
314	#if GC_ARCH_BITS == 32
315	RTGCPTR GCPtrPadding; /*< Alignment padding. /
316	#endif
317	} PDMAPIC;
318
319
320	/**
321	* PDM registered I/O APIC device.
322	*/
323	typedef struct PDMIOAPIC
324	{
325	/** Pointer to the APIC device instance - HC Ptr. */
326	PPDMDEVINSHC pDevInsR3;
327	/** @copydoc PDMIOAPICREG::pfnSetIrqHC */
328	DECLR3CALLBACKMEMBER(void, pfnSetIrqR3,(PPDMDEVINS pDevIns, int iIrq, int iLevel));
329
330	/** Pointer to the PIC device instance - R0. */
331	R0PTRTYPE(PPDMDEVINS) pDevInsR0;
332	/** @copydoc PDMIOAPICREG::pfnSetIrqHC */
333	DECLR0CALLBACKMEMBER(void, pfnSetIrqR0,(PPDMDEVINS pDevIns, int iIrq, int iLevel));
334
335	/** Pointer to the APIC device instance - GC Ptr. */
336	PPDMDEVINSGC pDevInsGC;
337	/** @copydoc PDMIOAPICREG::pfnSetIrqHC */
338	DECLGCCALLBACKMEMBER(void, pfnSetIrqGC,(PPDMDEVINS pDevIns, int iIrq, int iLevel));
339	} PDMIOAPIC;
340
341
342	/**
343	* PDM PCI Bus instance.
344	*/
345	typedef struct PDMPCIBUS
346	{
347	/** PCI bus number. */
348	RTUINT iBus;
349	RTUINT uPadding0; /*< Alignment padding./
350
351	/** Pointer to PCI Bus device instance. */
352	PPDMDEVINSHC pDevInsR3;
353	/** @copydoc PDMPCIBUSREG::pfnSetIrqHC */
354	DECLR3CALLBACKMEMBER(void, pfnSetIrqR3,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, int iIrq, int iLevel));
355	/** @copydoc PDMPCIBUSREG::pfnRegisterHC */
356	DECLR3CALLBACKMEMBER(int, pfnRegisterR3,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, const char *pszName, int iDev));
357	/** @copydoc PDMPCIBUSREG::pfnIORegionRegisterHC */
358	DECLR3CALLBACKMEMBER(int, pfnIORegionRegisterR3,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, int iRegion, uint32_t cbRegion,
359	PCIADDRESSSPACE enmType, PFNPCIIOREGIONMAP pfnCallback));
360	/** @copydoc PDMPCIBUSREG::pfnSaveExecHC */
361	DECLR3CALLBACKMEMBER(int, pfnSaveExecR3,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, PSSMHANDLE pSSMHandle));
362	/** @copydoc PDMPCIBUSREG::pfnLoadExecHC */
363	DECLR3CALLBACKMEMBER(int, pfnLoadExecR3,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, PSSMHANDLE pSSMHandle));
364	/** @copydoc PDMPCIBUSREG::pfnFakePCIBIOSHC */
365	DECLR3CALLBACKMEMBER(int, pfnFakePCIBIOSR3,(PPDMDEVINS pDevIns));
366
367	/** Pointer to the PIC device instance - R0. */
368	R0PTRTYPE(PPDMDEVINS) pDevInsR0;
369	/** @copydoc PDMPCIBUSREG::pfnSetIrqHC */
370	DECLR0CALLBACKMEMBER(void, pfnSetIrqR0,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, int iIrq, int iLevel));
371
372	/** Pointer to PCI Bus device instance. */
373	PPDMDEVINSGC pDevInsGC;
374	/** @copydoc PDMPCIBUSREG::pfnSetIrqHC */
375	DECLGCCALLBACKMEMBER(void, pfnSetIrqGC,(PPDMDEVINS pDevIns, PPCIDEVICE pPciDev, int iIrq, int iLevel));
376	} PDMPCIBUS;
377
378
379	#ifdef IN_RING3
380	/**
381	* PDM registered DMAC (DMA Controller) device.
382	*/
383	typedef struct PDMDMAC
384	{
385	/** Pointer to the DMAC device instance. */
386	PPDMDEVINS pDevIns;
387	/** Copy of the registration structure. */
388	PDMDMACREG Reg;
389	} PDMDMAC;
390
391
392	/**
393	* PDM registered RTC (Real Time Clock) device.
394	*/
395	typedef struct PDMRTC
396	{
397	/** Pointer to the RTC device instance. */
398	PPDMDEVINS pDevIns;
399	/** Copy of the registration structure. */
400	PDMRTCREG Reg;
401	} PDMRTC;
402
403	#endif /* IN_RING3 */
404
405	/**
406	* Module type.
407	*/
408	typedef enum PDMMODTYPE
409	{
410	/** Guest context module. */
411	PDMMOD_TYPE_GC,
412	/** Ring-0 (host) context module. */
413	PDMMOD_TYPE_R0,
414	/** Ring-3 (host) context module. */
415	PDMMOD_TYPE_R3
416	} PDMMODTYPE, *PPDMMODTYPE;
417
418
419	/** The module name length including the terminator. */
420	#define PDMMOD_NAME_LEN 32
421
422	/**
423	* Loaded module instance.
424	*/
425	typedef struct PDMMOD
426	{
427	/** Module name. This is used for refering to
428	* the module internally, sort of like a handle. */
429	char szName[PDMMOD_NAME_LEN];
430	/** Module type. */
431	PDMMODTYPE eType;
432	/** Loader module handle. Not used for R0 modules. */
433	RTLDRMOD hLdrMod;
434	/** Loaded address.
435	* This is the 'handle' for R0 modules. */
436	RTUINTPTR ImageBase;
437	/** Old loaded address.
438	* This is used during relocation of GC modules. Not used for R0 modules. */
439	RTUINTPTR OldImageBase;
440	/** Where the R3 HC bits are stored.
441	* This can be equal to ImageBase but doesn't have to. Not used for R0 modules. */
442	void *pvBits;
443
444	/** Pointer to next module. */
445	struct PDMMOD *pNext;
446	/** Module filename. */
447	char szFilename[1];
448	} PDMMOD;
449	/** Pointer to loaded module instance. */
450	typedef PDMMOD *PPDMMOD;
451
452
453
454	/** Extra space in the free array. */
455	#define PDMQUEUE_FREE_SLACK 16
456
457	/**
458	* Queue type.
459	*/
460	typedef enum PDMQUEUETYPE
461	{
462	/** Device consumer. */
463	PDMQUEUETYPE_DEV = 1,
464	/** Driver consumer. */
465	PDMQUEUETYPE_DRV,
466	/** Internal consumer. */
467	PDMQUEUETYPE_INTERNAL,
468	/** External consumer. */
469	PDMQUEUETYPE_EXTERNAL
470	} PDMQUEUETYPE;
471
472	/** Pointer to a PDM Queue. */
473	typedef struct PDMQUEUE *PPDMQUEUE;
474
475	/**
476	* PDM Queue.
477	*/
478	typedef struct PDMQUEUE
479	{
480	/** Pointer to the next queue in the list. */
481	HCPTRTYPE(PPDMQUEUE) pNext;
482	/** Queue type. */
483	PDMQUEUETYPE enmType;
484	/** Type specific data. */
485	union
486	{
487	/** PDMQUEUETYPE_DEV */
488	struct
489	{
490	/** Pointer to consumer function. */
491	HCPTRTYPE(PFNPDMQUEUEDEV) pfnCallback;
492	/** Pointer to the device instance owning the queue. */
493	HCPTRTYPE(PPDMDEVINS) pDevIns;
494	} Dev;
495	/** PDMQUEUETYPE_DRV */
496	struct
497	{
498	/** Pointer to consumer function. */
499	HCPTRTYPE(PFNPDMQUEUEDRV) pfnCallback;
500	/** Pointer to the driver instance owning the queue. */
501	HCPTRTYPE(PPDMDRVINS) pDrvIns;
502	} Drv;
503	/** PDMQUEUETYPE_INTERNAL */
504	struct
505	{
506	/** Pointer to consumer function. */
507	HCPTRTYPE(PFNPDMQUEUEINT) pfnCallback;
508	} Int;
509	/** PDMQUEUETYPE_EXTERNAL */
510	struct
511	{
512	/** Pointer to consumer function. */
513	HCPTRTYPE(PFNPDMQUEUEEXT) pfnCallback;
514	/** Pointer to user argument. */
515	HCPTRTYPE(void *) pvUser;
516	} Ext;
517	} u;
518	/** Pointer to the VM. */
519	HCPTRTYPE(PVM) pVMHC;
520	/** Pointer to the GC VM and indicator for GC enabled queue.
521	* If this is NULL, the queue cannot be used in GC.
522	*/
523	GCPTRTYPE(PVM) pVMGC;
524	/** The interval between checking the queue for events.
525	* The realtime timer below is used to do the waiting.
526	* If 0, the queue will use the VM_FF_PDM_QUEUE forced action. */
527	uint32_t cMilliesInterval;
528	/** Interval timer. Only used if cMilliesInterval is non-zero. */
529	PTMTIMERHC pTimer;
530	/** Item size (bytes). */
531	RTUINT cbItem;
532	/** Number of items in the queue. */
533	RTUINT cItems;
534	/** LIFO of pending items - HC. */
535	HCPTRTYPE(PPDMQUEUEITEMCORE) volatile pPendingHC;
536	/** LIFO of pending items - GC. */
537	GCPTRTYPE(PPDMQUEUEITEMCORE) pPendingGC;
538	/** Index to the free head (where we insert). */
539	uint32_t volatile iFreeHead;
540	/** Index to the free tail (where we remove). */
541	uint32_t volatile iFreeTail;
542	/** Array of pointers to free items. Variable size. */
543	struct PDMQUEUEFREEITEM
544	{
545	/** Pointer to the free item - HC Ptr. */
546	HCPTRTYPE(PPDMQUEUEITEMCORE) volatile pItemHC;
547	/** Pointer to the free item - GC Ptr. */
548	GCPTRTYPE(PPDMQUEUEITEMCORE) volatile pItemGC;
549	} aFreeItems[1];
550	} PDMQUEUE;
551
552
553	/**
554	* Queue device helper task operation.
555	*/
556	typedef enum PDMDEVHLPTASKOP
557	{
558	/** The usual invalid 0 entry. */
559	PDMDEVHLPTASKOP_INVALID = 0,
560	/** ISASetIrq */
561	PDMDEVHLPTASKOP_ISA_SET_IRQ,
562	/** PCISetIrq */
563	PDMDEVHLPTASKOP_PCI_SET_IRQ,
564	/** PCISetIrq */
565	PDMDEVHLPTASKOP_IOAPIC_SET_IRQ,
566	/** The usual 32-bit hack. */
567	PDMDEVHLPTASKOP_32BIT_HACK = 0x7fffffff
568	} PDMDEVHLPTASKOP;
569
570	/**
571	* Queued Device Helper Task.
572	*/
573	typedef struct PDMDEVHLPTASK
574	{
575	/** The queue item core (don't touch). */
576	PDMQUEUEITEMCORE Core;
577	/** Pointer to the device instance (HC Ptr). */
578	HCPTRTYPE(PPDMDEVINS) pDevInsHC;
579	/** This operation to perform. */
580	PDMDEVHLPTASKOP enmOp;
581	/** Parameters to the operation. */
582	union PDMDEVHLPTASKPARAMS
583	{
584	/**
585	* PDMDEVHLPTASKOP_ISA_SET_IRQ and PDMDEVHLPTASKOP_PCI_SET_IRQ.
586	*/
587	struct PDMDEVHLPTASKSETIRQ
588	{
589	/** The IRQ */
590	int iIrq;
591	/** The new level. */
592	int iLevel;
593	} SetIRQ;
594	} u;
595	} PDMDEVHLPTASK;
596	/** Pointer to a queued Device Helper Task. */
597	typedef PDMDEVHLPTASK *PPDMDEVHLPTASK;
598	/** Pointer to a const queued Device Helper Task. */
599	typedef const PDMDEVHLPTASK *PCPDMDEVHLPTASK;
600
601
602
603	/**
604	* Converts a PDM pointer into a VM pointer.
605	* @returns Pointer to the VM structure the PDM is part of.
606	* @param pPDM Pointer to PDM instance data.
607	*/
608	#define PDM2VM(pPDM) ( (PVM)((char*)pPDM - pPDM->offVM) )
609
610
611	/**
612	* PDM VM Instance data.
613	* Changes to this must checked against the padding of the cfgm union in VM!
614	*/
615	typedef struct PDM
616	{
617	/** Offset to the VM structure.
618	* See PDM2VM(). */
619	RTUINT offVM;
620	RTUINT uPadding0; /*< Alignment padding./
621
622	/** Pointer to list of loaded modules. This is HC only! */
623	HCPTRTYPE(PPDMMOD) pModules;
624
625	/** List of registered devices. (FIFO) */
626	HCPTRTYPE(PPDMDEV) pDevs;
627	/** List of devices instances. (FIFO) */
628	HCPTRTYPE(PPDMDEVINS) pDevInstances;
629	/** List of registered drivers. (FIFO) */
630	HCPTRTYPE(PPDMDRV) pDrvs;
631	/** List of initialized critical sections. (LIFO) */
632	HCPTRTYPE(PPDMCRITSECTINT) pCritSects;
633	/** PCI Buses. */
634	PDMPCIBUS aPciBuses[1];
635	/** The register PIC device. */
636	PDMPIC Pic;
637	/** The registerd APIC device. */
638	PDMAPIC Apic;
639	/** The registerd I/O APIC device. */
640	PDMIOAPIC IoApic;
641	/** The registered DMAC device. */
642	HCPTRTYPE(PPDMDMAC) pDmac;
643	/** The registered RTC device. */
644	HCPTRTYPE(PPDMRTC) pRtc;
645
646	/** Queue in which devhlp tasks are queued for R3 execution - HC Ptr. */
647	HCPTRTYPE(PPDMQUEUE) pDevHlpQueueHC;
648	/** Queue in which devhlp tasks are queued for R3 execution - GC Ptr. */
649	GCPTRTYPE(PPDMQUEUE) pDevHlpQueueGC;
650
651	/** The number of entries in the apQueuedCritSectsLeaves table that's currnetly in use. */
652	RTUINT cQueuedCritSectLeaves;
653	/** Critical sections queued in GC/R0 because of contention preventing leave to complete. (R3 Ptrs)
654	* We will return to Ring-3 ASAP, so this queue doesn't has to be very long. */
655	R3PTRTYPE(PPDMCRITSECT) apQueuedCritSectsLeaves[8];
656
657	/** Linked list of timer driven PDM queues. */
658	HCPTRTYPE(struct PDMQUEUE *) pQueuesTimer;
659	/** Linked list of force action driven PDM queues. */
660	HCPTRTYPE(struct PDMQUEUE *) pQueuesForced;
661	/** Pointer to the queue which should be manually flushed - HCPtr.
662	* Only touched by EMT. */
663	HCPTRTYPE(struct PDMQUEUE *) pQueueFlushHC;
664	/** Pointer to the queue which should be manually flushed - GCPtr. */
665	GCPTRTYPE(struct PDMQUEUE *) pQueueFlushGC;
666
667	/** TEMPORARY HACKS FOR NETWORK POLLING.
668	* @todo fix NAT and kill this!
669	* @{ */
670	RTUINT cPollers;
671	HCPTRTYPE(PFNPDMDRVPOLLER) apfnPollers[16];
672	HCPTRTYPE(PPDMDRVINS) aDrvInsPollers[16];
673	PTMTIMERHC pTimerPollers;
674	/** @} */
675
676	#ifdef VBOX_WITH_PDM_LOCK
677	/** The PDM lock.
678	* This is used to protect everything that deals with interrupts, i.e.
679	* the PIC, APIC, IOAPIC and PCI devices pluss some PDM functions. */
680	PDMCRITSECT CritSect;
681	#endif
682
683
684	/** Number of times a critical section leave requesed needed to be queued for ring-3 execution. */
685	STAMCOUNTER StatQueuedCritSectLeaves;
686	} PDM;
687	/** Pointer to PDM VM instance data. */
688	typedef PDM *PPDM;
689
690
691
692	/*******************************************************************************
693	* Global Variables *
694	*******************************************************************************/
695	#ifdef IN_RING3
696	extern const PDMDRVHLP g_pdmR3DrvHlp;
697	#endif
698
699
700	/*******************************************************************************
701	* Internal Functions *
702	*******************************************************************************/
703	int pdmR3CritSectInit(PVM pVM);
704	int pdmR3CritSectTerm(PVM pVM);
705	void pdmR3CritSectRelocate(PVM pVM);
706	int pdmR3CritSectInitDevice(PVM pVM, PPDMDEVINS pDevIns, PPDMCRITSECT pCritSect, const char *pszName);
707	int pdmR3CritSectDeleteDevice(PVM pVM, PPDMDEVINS pDevIns);
708
709	int pdmR3DevInit(PVM pVM);
710	PPDMDEV pdmR3DevLookup(PVM pVM, const char *pszName);
711	int pdmR3DevFindLun(PVM pVM, const char pszDevice, unsigned iInstance, unsigned iLun, PPDMLUN ppLun);
712
713	int pdmR3DrvInit(PVM pVM);
714	int pdmR3DrvDetach(PPDMDRVINS pDrvIns);
715	PPDMDRV pdmR3DrvLookup(PVM pVM, const char *pszName);
716
717	int pdmR3LdrInit(PVM pVM);
718	void pdmR3LdrTerm(PVM pVM);
719	char * pdmR3FileR3(const char *pszFile);
720	int pdmR3LoadR3(PVM pVM, const char pszFilename, const char pszName);
721
722	void pdmR3QueueRelocate(PVM pVM, RTGCINTPTR offDelta);
723
724	#ifdef VBOX_WITH_PDM_LOCK
725	void pdmLock(PVM pVM);
726	int pdmLockEx(PVM pVM, int rc);
727	void pdmUnlock(PVM pVM);
728	#else
729	# define pdmLock(pVM) do {} while (0)
730	# define pdmLockEx(pVM, rc) (VINF_SUCCESS)
731	# define pdmUnlock(pVM) do {} while (0)
732	#endif
733
734	/** @} */
735
736	__END_DECLS
737
738	#endif

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source: vbox/trunk/src/VBox/VMM/PDMInternal.h@ 382

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