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source: vbox/trunk/include/VBox/iom.h@ 28800

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1/** @file
2 * IOM - Input / Output Monitor. (VMM)
3 */
4
5/*
6 * Copyright (C) 2006-2007 Oracle Corporation
7 *
8 * This file is part of VirtualBox Open Source Edition (OSE), as
9 * available from http://www.virtualbox.org. This file is free software;
10 * you can redistribute it and/or modify it under the terms of the GNU
11 * General Public License (GPL) as published by the Free Software
12 * Foundation, in version 2 as it comes in the "COPYING" file of the
13 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15 *
16 * The contents of this file may alternatively be used under the terms
17 * of the Common Development and Distribution License Version 1.0
18 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
19 * VirtualBox OSE distribution, in which case the provisions of the
20 * CDDL are applicable instead of those of the GPL.
21 *
22 * You may elect to license modified versions of this file under the
23 * terms and conditions of either the GPL or the CDDL or both.
24 */
25
26#ifndef ___VBox_iom_h
27#define ___VBox_iom_h
28
29#include <VBox/cdefs.h>
30#include <VBox/types.h>
31#include <VBox/dis.h>
32
33RT_C_DECLS_BEGIN
34
35
36/** @defgroup grp_iom The Input / Ouput Monitor API
37 * @{
38 */
39
40/** @def IOM_NO_PDMINS_CHECKS
41 * Until all devices have been fully adjusted to PDM style, the pPdmIns
42 * parameter is not checked by IOM.
43 * @todo Check this again, now.
44 */
45#define IOM_NO_PDMINS_CHECKS
46
47/**
48 * Macro for checking if an I/O or MMIO emulation call succeeded.
49 *
50 * This macro shall only be used with the IOM APIs where it's mentioned
51 * in the return value description. And there is must be used to correctly
52 * determin if the call succeeded and things like the EIP needs updating.
53 *
54 *
55 * @returns Success indicator (true/false).
56 *
57 * @param rc The status code. This may be evaluated
58 * more than once!
59 *
60 * @remark To avoid making assumptions about the layout of the
61 * VINF_EM_FIRST...VINF_EM_LAST range we're checking
62 * explicitly for each for exach the exceptions.
63 * However, for efficieny we ASSUME that the
64 * VINF_EM_LAST is smaller than most of the relevant
65 * status codes. We also ASSUME that the
66 * VINF_EM_RESCHEDULE_REM status code is the most
67 * frequent status code we'll enounter in this range.
68 *
69 * @todo Will have to add VINF_EM_DBG_HYPER_BREAKPOINT if the
70 * I/O port and MMIO breakpoints should trigger before
71 * the I/O is done. Currently, we don't implement these
72 * kind of breakpoints.
73 */
74#define IOM_SUCCESS(rc) ( (rc) == VINF_SUCCESS \
75 || ( (rc) <= VINF_EM_LAST \
76 && (rc) != VINF_EM_RESCHEDULE_REM \
77 && (rc) >= VINF_EM_FIRST \
78 && (rc) != VINF_EM_RESCHEDULE_RAW \
79 && (rc) != VINF_EM_RESCHEDULE_HWACC \
80 ) \
81 )
82
83
84/**
85 * Port I/O Handler for IN operations.
86 *
87 * @returns VINF_SUCCESS or VINF_EM_*.
88 * @returns VERR_IOM_IOPORT_UNUSED if the port is really unused and a ~0 value should be returned.
89 *
90 * @param pDevIns The device instance.
91 * @param pvUser User argument.
92 * @param uPort Port number used for the IN operation.
93 * @param pu32 Where to store the result.
94 * @param cb Number of bytes read.
95 */
96typedef DECLCALLBACK(int) FNIOMIOPORTIN(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t *pu32, unsigned cb);
97/** Pointer to a FNIOMIOPORTIN(). */
98typedef FNIOMIOPORTIN *PFNIOMIOPORTIN;
99
100/**
101 * Port I/O Handler for string IN operations.
102 *
103 * @returns VINF_SUCCESS or VINF_EM_*.
104 * @returns VERR_IOM_IOPORT_UNUSED if the port is really unused and a ~0 value should be returned.
105 *
106 * @param pDevIns The device instance.
107 * @param pvUser User argument.
108 * @param uPort Port number used for the IN operation.
109 * @param pGCPtrDst Pointer to the destination buffer (GC, incremented appropriately).
110 * @param pcTransfers Pointer to the number of transfer units to read, on return remaining transfer units.
111 * @param cb Size of the transfer unit (1, 2 or 4 bytes).
112 */
113typedef DECLCALLBACK(int) FNIOMIOPORTINSTRING(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, RTGCPTR *pGCPtrDst, PRTGCUINTREG pcTransfers, unsigned cb);
114/** Pointer to a FNIOMIOPORTINSTRING(). */
115typedef FNIOMIOPORTINSTRING *PFNIOMIOPORTINSTRING;
116
117/**
118 * Port I/O Handler for OUT operations.
119 *
120 * @returns VINF_SUCCESS or VINF_EM_*.
121 *
122 * @param pDevIns The device instance.
123 * @param pvUser User argument.
124 * @param uPort Port number used for the OUT operation.
125 * @param u32 The value to output.
126 * @param cb The value size in bytes.
127 */
128typedef DECLCALLBACK(int) FNIOMIOPORTOUT(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb);
129/** Pointer to a FNIOMIOPORTOUT(). */
130typedef FNIOMIOPORTOUT *PFNIOMIOPORTOUT;
131
132/**
133 * Port I/O Handler for string OUT operations.
134 *
135 * @returns VINF_SUCCESS or VINF_EM_*.
136 *
137 * @param pDevIns The device instance.
138 * @param pvUser User argument.
139 * @param uPort Port number used for the OUT operation.
140 * @param pGCPtrSrc Pointer to the source buffer (GC, incremented appropriately).
141 * @param pcTransfers Pointer to the number of transfer units to write, on return remaining transfer units.
142 * @param cb Size of the transfer unit (1, 2 or 4 bytes).
143 */
144typedef DECLCALLBACK(int) FNIOMIOPORTOUTSTRING(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, RTGCPTR *pGCPtrSrc, PRTGCUINTREG pcTransfers, unsigned cb);
145/** Pointer to a FNIOMIOPORTOUTSTRING(). */
146typedef FNIOMIOPORTOUTSTRING *PFNIOMIOPORTOUTSTRING;
147
148
149/**
150 * Memory mapped I/O Handler for read operations.
151 *
152 * @returns VBox status code.
153 *
154 * @param pDevIns The device instance.
155 * @param pvUser User argument.
156 * @param GCPhysAddr Physical address (in GC) where the read starts.
157 * @param pv Where to store the result.
158 * @param cb Number of bytes read.
159 *
160 * @remark wonder if we could merge the IOMMMIO* and IOMPORT* callbacks...
161 */
162typedef DECLCALLBACK(int) FNIOMMMIOREAD(PPDMDEVINS pDevIns, void *pvUser, RTGCPHYS GCPhysAddr, void *pv, unsigned cb);
163/** Pointer to a FNIOMMMIOREAD(). */
164typedef FNIOMMMIOREAD *PFNIOMMMIOREAD;
165
166/**
167 * Port I/O Handler for write operations.
168 *
169 * @returns VBox status code.
170 *
171 * @param pDevIns The device instance.
172 * @param pvUser User argument.
173 * @param GCPhysAddr Physical address (in GC) where the read starts.
174 * @param pv Where to fetch the result.
175 * @param cb Number of bytes to write.
176 *
177 * @remark wonder if we could merge the IOMMMIO* and IOMPORT* callbacks...
178 */
179typedef DECLCALLBACK(int) FNIOMMMIOWRITE(PPDMDEVINS pDevIns, void *pvUser, RTGCPHYS GCPhysAddr, void *pv, unsigned cb);
180/** Pointer to a FNIOMMMIOWRITE(). */
181typedef FNIOMMMIOWRITE *PFNIOMMMIOWRITE;
182
183/**
184 * Port I/O Handler for memset operations, actually for REP STOS* instructions handling.
185 *
186 * @returns VBox status code.
187 *
188 * @param pDevIns The device instance.
189 * @param pvUser User argument.
190 * @param GCPhysAddr Physical address (in GC) where the write starts.
191 * @param u32Item Byte/Word/Dword data to fill.
192 * @param cbItem Size of data in u32Item parameter, restricted to 1/2/4 bytes.
193 * @param cItems Number of iterations.
194 */
195typedef DECLCALLBACK(int) FNIOMMMIOFILL(PPDMDEVINS pDevIns, void *pvUser, RTGCPHYS GCPhysAddr, uint32_t u32Item, unsigned cbItem, unsigned cItems);
196/** Pointer to a FNIOMMMIOFILL(). */
197typedef FNIOMMMIOFILL *PFNIOMMMIOFILL;
198
199VMMDECL(VBOXSTRICTRC) IOMIOPortRead(PVM pVM, RTIOPORT Port, uint32_t *pu32Value, size_t cbValue);
200VMMDECL(VBOXSTRICTRC) IOMIOPortWrite(PVM pVM, RTIOPORT Port, uint32_t u32Value, size_t cbValue);
201VMMDECL(VBOXSTRICTRC) IOMInterpretOUT(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu);
202VMMDECL(VBOXSTRICTRC) IOMInterpretIN(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu);
203VMMDECL(VBOXSTRICTRC) IOMIOPortReadString(PVM pVM, RTIOPORT Port, PRTGCPTR pGCPtrDst, PRTGCUINTREG pcTransfers, unsigned cb);
204VMMDECL(VBOXSTRICTRC) IOMIOPortWriteString(PVM pVM, RTIOPORT Port, PRTGCPTR pGCPtrSrc, PRTGCUINTREG pcTransfers, unsigned cb);
205VMMDECL(VBOXSTRICTRC) IOMInterpretINS(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu);
206VMMDECL(VBOXSTRICTRC) IOMInterpretINSEx(PVM pVM, PCPUMCTXCORE pRegFrame, uint32_t uPort, uint32_t uPrefix, uint32_t cbTransfer);
207VMMDECL(VBOXSTRICTRC) IOMInterpretOUTS(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu);
208VMMDECL(VBOXSTRICTRC) IOMInterpretOUTSEx(PVM pVM, PCPUMCTXCORE pRegFrame, uint32_t uPort, uint32_t uPrefix, uint32_t cbTransfer);
209VMMDECL(VBOXSTRICTRC) IOMMMIORead(PVM pVM, RTGCPHYS GCPhys, uint32_t *pu32Value, size_t cbValue);
210VMMDECL(VBOXSTRICTRC) IOMMMIOWrite(PVM pVM, RTGCPHYS GCPhys, uint32_t u32Value, size_t cbValue);
211VMMDECL(VBOXSTRICTRC) IOMMMIOPhysHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pCtxCore, RTGCPHYS GCPhysFault);
212VMMDECL(VBOXSTRICTRC) IOMInterpretCheckPortIOAccess(PVM pVM, PCPUMCTXCORE pCtxCore, RTIOPORT Port, unsigned cb);
213VMMDECL(int) IOMMMIOMapMMIO2Page(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS GCPhysRemapped, uint64_t fPageFlags);
214VMMDECL(int) IOMMMIOMapMMIOHCPage(PVM pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint64_t fPageFlags);
215VMMDECL(int) IOMMMIOResetRegion(PVM pVM, RTGCPHYS GCPhys);
216VMMDECL(bool) IOMIsLockOwner(PVM pVM);
217
218#ifdef IN_RC
219/** @defgroup grp_iom_gc The IOM Guest Context API
220 * @ingroup grp_iom
221 * @{
222 */
223VMMRCDECL(VBOXSTRICTRC) IOMGCIOPortHandler(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu);
224/** @} */
225#endif /* IN_RC */
226
227
228
229#ifdef IN_RING3
230/** @defgroup grp_iom_r3 The IOM Host Context Ring-3 API
231 * @ingroup grp_iom
232 * @{
233 */
234VMMR3DECL(int) IOMR3Init(PVM pVM);
235VMMR3DECL(void) IOMR3Reset(PVM pVM);
236VMMR3DECL(void) IOMR3Relocate(PVM pVM, RTGCINTPTR offDelta);
237VMMR3DECL(int) IOMR3Term(PVM pVM);
238VMMR3DECL(int) IOMR3IOPortRegisterR3(PVM pVM, PPDMDEVINS pDevIns, RTIOPORT PortStart, RTUINT cPorts, RTHCPTR pvUser,
239 R3PTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback, R3PTRTYPE(PFNIOMIOPORTIN) pfnInCallback,
240 R3PTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStringCallback, R3PTRTYPE(PFNIOMIOPORTINSTRING) pfnInStringCallback,
241 const char *pszDesc);
242VMMR3DECL(int) IOMR3IOPortRegisterRC(PVM pVM, PPDMDEVINS pDevIns, RTIOPORT PortStart, RTUINT cPorts, RTRCPTR pvUser,
243 RCPTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback, RCPTRTYPE(PFNIOMIOPORTIN) pfnInCallback,
244 RCPTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback, RCPTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback,
245 const char *pszDesc);
246VMMR3DECL(int) IOMR3IOPortRegisterR0(PVM pVM, PPDMDEVINS pDevIns, RTIOPORT PortStart, RTUINT cPorts, RTR0PTR pvUser,
247 R0PTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback, R0PTRTYPE(PFNIOMIOPORTIN) pfnInCallback,
248 R0PTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback, R0PTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback,
249 const char *pszDesc);
250VMMR3DECL(int) IOMR3IOPortDeregister(PVM pVM, PPDMDEVINS pDevIns, RTIOPORT PortStart, RTUINT cPorts);
251
252VMMR3DECL(int) IOMR3MMIORegisterR3(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhysStart, RTUINT cbRange, RTHCPTR pvUser,
253 R3PTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallback,
254 R3PTRTYPE(PFNIOMMMIOREAD) pfnReadCallback,
255 R3PTRTYPE(PFNIOMMMIOFILL) pfnFillCallback, const char *pszDesc);
256VMMR3DECL(int) IOMR3MMIORegisterR0(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhysStart, RTUINT cbRange, RTR0PTR pvUser,
257 R0PTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallback,
258 R0PTRTYPE(PFNIOMMMIOREAD) pfnReadCallback,
259 R0PTRTYPE(PFNIOMMMIOFILL) pfnFillCallback);
260VMMR3DECL(int) IOMR3MMIORegisterRC(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhysStart, RTUINT cbRange, RTGCPTR pvUser,
261 RCPTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallback,
262 RCPTRTYPE(PFNIOMMMIOREAD) pfnReadCallback,
263 RCPTRTYPE(PFNIOMMMIOFILL) pfnFillCallback);
264VMMR3DECL(int) IOMR3MMIODeregister(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhysStart, RTUINT cbRange);
265
266VMMR3DECL(void) IOMR3ReleaseOwnedLocks(PVM pVM);
267VMMR3DECL(PPDMCRITSECT) IOMR3GetCritSect(PVM pVM);
268
269/** @} */
270#endif /* IN_RING3 */
271
272
273/** @} */
274
275RT_C_DECLS_END
276
277#endif
278
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