1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/** @file
* GIM - Guest Interface Manager.
*/
/*
* Copyright (C) 2014-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
#ifndef VBOX_INCLUDED_vmm_gim_h
#define VBOX_INCLUDED_vmm_gim_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <VBox/cdefs.h>
#include <VBox/types.h>
#include <VBox/param.h>
#include <VBox/vmm/cpum.h>
#include <VBox/vmm/pdmifs.h>
/** The value used to specify that VirtualBox must use the newest
* implementation version of the GIM provider. */
#define GIM_VERSION_LATEST UINT32_C(0)
RT_C_DECLS_BEGIN
/** @defgroup grp_gim The Guest Interface Manager API
* @ingroup grp_vmm
* @{
*/
/**
* GIM Provider Identifiers.
* @remarks Part of saved state!
*/
typedef enum GIMPROVIDERID
{
/** None. */
GIMPROVIDERID_NONE = 0,
/** Minimal. */
GIMPROVIDERID_MINIMAL,
/** Microsoft Hyper-V. */
GIMPROVIDERID_HYPERV,
/** Linux KVM Interface. */
GIMPROVIDERID_KVM
} GIMPROVIDERID;
AssertCompileSize(GIMPROVIDERID, sizeof(uint32_t));
/**
* A GIM MMIO2 region record.
*/
typedef struct GIMMMIO2REGION
{
/** The region index. */
uint8_t iRegion;
/** Whether an RC mapping is required. */
bool fRCMapping;
/** Whether this region has been registered. */
bool fRegistered;
/** Whether this region is currently mapped. */
bool fMapped;
/** Alignment padding. */
uint8_t au8Alignment0[3];
/** Size of the region (must be page aligned). */
uint32_t cbRegion;
/** Alignment padding. */
uint32_t u32Alignment0;
/** The host ring-0 address of the first page in the region. */
R0PTRTYPE(void *) pvPageR0;
/** The host ring-3 address of the first page in the region. */
R3PTRTYPE(void *) pvPageR3;
/** The ring-context address of the first page in the region. */
RCPTRTYPE(void *) pvPageRC;
/** The guest-physical address of the first page in the region. */
RTGCPHYS GCPhysPage;
/** The description of the region. */
char szDescription[32];
} GIMMMIO2REGION;
/** Pointer to a GIM MMIO2 region. */
typedef GIMMMIO2REGION *PGIMMMIO2REGION;
/** Pointer to a const GIM MMIO2 region. */
typedef GIMMMIO2REGION const *PCGIMMMIO2REGION;
AssertCompileMemberAlignment(GIMMMIO2REGION, cbRegion, 8);
AssertCompileMemberAlignment(GIMMMIO2REGION, pvPageR0, 8);
/**
* Debug data buffer available callback over the GIM debug connection.
*
* @param pVM The cross context VM structure.
*/
typedef DECLCALLBACK(void) FNGIMDEBUGBUFAVAIL(PVM pVM);
/** Pointer to GIM debug buffer available callback. */
typedef FNGIMDEBUGBUFAVAIL *PFNGIMDEBUGBUFAVAIL;
/**
* GIM debug setup.
*
* These are parameters/options filled in by the GIM provider and passed along
* to the GIM device.
*/
typedef struct GIMDEBUGSETUP
{
/** The callback to invoke when the receive buffer has data. */
PFNGIMDEBUGBUFAVAIL pfnDbgRecvBufAvail;
/** The size of the receive buffer as specified by the GIM provider. */
uint32_t cbDbgRecvBuf;
} GIMDEBUGSETUP;
/** Pointer to a GIM debug setup struct. */
typedef struct GIMDEBUGSETUP *PGIMDEBUGSETUP;
/** Pointer to a const GIM debug setup struct. */
typedef struct GIMDEBUGSETUP const *PCGGIMDEBUGSETUP;
/**
* GIM debug structure (common to the GIM device and GIM).
*
* This is used to exchanging data between the GIM provider and the GIM device.
*/
typedef struct GIMDEBUG
{
/** The receive buffer. */
void *pvDbgRecvBuf;
/** The debug I/O stream driver. */
PPDMISTREAM pDbgDrvStream;
/** Number of bytes pending to be read from the receive buffer. */
size_t cbDbgRecvBufRead;
/** The flag synchronizing reads of the receive buffer from EMT. */
volatile bool fDbgRecvBufRead;
/** The receive thread wakeup semaphore. */
RTSEMEVENTMULTI hDbgRecvThreadSem;
} GIMDEBUG;
/** Pointer to a GIM debug struct. */
typedef struct GIMDEBUG *PGIMDEBUG;
/** Pointer to a const GIM debug struct. */
typedef struct GIMDEBUG const *PCGIMDEBUG;
#ifdef IN_RC
/** @defgroup grp_gim_rc The GIM Raw-mode Context API
* @{
*/
/** @} */
#endif /* IN_RC */
#ifdef IN_RING0
/** @defgroup grp_gim_r0 The GIM Host Context Ring-0 API
* @{
*/
VMMR0_INT_DECL(int) GIMR0InitVM(PVM pVM);
VMMR0_INT_DECL(int) GIMR0TermVM(PVM pVM);
VMMR0_INT_DECL(int) GIMR0UpdateParavirtTsc(PVM pVM, uint64_t u64Offset);
/** @} */
#endif /* IN_RING0 */
#ifdef IN_RING3
/** @defgroup grp_gim_r3 The GIM Host Context Ring-3 API
* @{
*/
VMMR3_INT_DECL(int) GIMR3Init(PVM pVM);
VMMR3_INT_DECL(int) GIMR3InitCompleted(PVM pVM);
VMMR3_INT_DECL(void) GIMR3Relocate(PVM pVM, RTGCINTPTR offDelta);
VMMR3_INT_DECL(int) GIMR3Term(PVM pVM);
VMMR3_INT_DECL(void) GIMR3Reset(PVM pVM);
VMMR3DECL(void) GIMR3GimDeviceRegister(PVM pVM, PPDMDEVINS pDevInsR3, PGIMDEBUG pDbg);
VMMR3DECL(int) GIMR3GetDebugSetup(PVM pVM, PGIMDEBUGSETUP pDbgSetup);
VMMR3DECL(PGIMMMIO2REGION) GIMR3GetMmio2Regions(PVM pVM, uint32_t *pcRegions);
/** @} */
#endif /* IN_RING3 */
VMMDECL(bool) GIMIsEnabled(PVM pVM);
VMMDECL(GIMPROVIDERID) GIMGetProvider(PVM pVM);
VMM_INT_DECL(bool) GIMIsParavirtTscEnabled(PVM pVM);
VMM_INT_DECL(bool) GIMAreHypercallsEnabled(PVMCPU pVCpu);
VMM_INT_DECL(VBOXSTRICTRC) GIMHypercall(PVMCPU pVCpu, PCPUMCTX pCtx);
VMM_INT_DECL(VBOXSTRICTRC) GIMHypercallEx(PVMCPU pVCpu, PCPUMCTX pCtx, unsigned uDisOpcode, uint8_t cbInstr);
VMM_INT_DECL(VBOXSTRICTRC) GIMExecHypercallInstr(PVMCPU pVCpu, PCPUMCTX pCtx, uint8_t *pcbInstr);
VMM_INT_DECL(VBOXSTRICTRC) GIMXcptUD(PVMCPU pVCpu, PCPUMCTX pCtx, PDISCPUSTATE pDis, uint8_t *pcbInstr);
VMM_INT_DECL(bool) GIMShouldTrapXcptUD(PVMCPU pVCpu);
VMM_INT_DECL(VBOXSTRICTRC) GIMReadMsr(PVMCPU pVCpu, uint32_t idMsr, PCCPUMMSRRANGE pRange, uint64_t *puValue);
VMM_INT_DECL(VBOXSTRICTRC) GIMWriteMsr(PVMCPU pVCpu, uint32_t idMsr, PCCPUMMSRRANGE pRange, uint64_t uValue, uint64_t uRawValue);
VMM_INT_DECL(int) GIMQueryHypercallOpcodeBytes(PVM pVM, void *pvBuf, size_t cbBuf,
size_t *pcbWritten, uint16_t *puDisOpcode);
/** @} */
RT_C_DECLS_END
#endif /* !VBOX_INCLUDED_vmm_gim_h */
|
