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
|
/** @file
* PDM - Pluggable Device Manager, Tasks.
*/
/*
* Copyright (C) 2019-2020 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_pdmtask_h
#define VBOX_INCLUDED_vmm_pdmtask_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <VBox/types.h>
RT_C_DECLS_BEGIN
/** @defgroup grp_pdm_task The PDM Tasks API
* @ingroup grp_pdm
*
* A task is a predefined asynchronous procedure call that can be triggered from
* any context.
*
* @{
*/
/** PDM task handle. */
typedef uint64_t PDMTASKHANDLE;
/** NIL PDM task handle. */
#define NIL_PDMTASKHANDLE UINT64_MAX
/**
* Task worker callback for devices.
*
* @param pDevIns The device instance.
* @param pvUser The user parameter.
* @thread Task worker thread.
* @remarks The device critical section will NOT be entered before calling the
* callback. No other locks will be held either.
*/
typedef DECLCALLBACK(void) FNPDMTASKDEV(PPDMDEVINS pDevIns, void *pvUser);
/** Pointer to a FNPDMTASKDEV(). */
typedef FNPDMTASKDEV *PFNPDMTASKDEV;
/**
* Task worker callback for drivers.
*
* @param pDrvIns The driver instance.
* @param pvUser The user parameter.
* @thread Task worker thread.
* @remarks No other locks will be held.
*/
typedef DECLCALLBACK(void) FNPDMTASKDRV(PPDMDRVINS pDrvIns, void *pvUser);
/** Pointer to a FNPDMTASKDRV(). */
typedef FNPDMTASKDRV *PFNPDMTASKDRV;
/**
* Task worker callback for USB devices.
*
* @param pUsbIns The USB device instance.
* @param pvUser The user parameter.
* @thread Task worker thread.
* @remarks No other locks will be held.
*/
typedef DECLCALLBACK(void) FNPDMTASKUSB(PPDMUSBINS pUsbIns, void *pvUser);
/** Pointer to a FNPDMTASKUSB(). */
typedef FNPDMTASKUSB *PFNPDMTASKUSB;
/**
* Task worker callback for internal components.
*
* @param pVM The cross context VM structure.
* @param pvUser The user parameter.
* @thread Task worker thread.
* @remarks No other locks will be held.
*/
typedef DECLCALLBACK(void) FNPDMTASKINT(PVM pVM, void *pvUser);
/** Pointer to a FNPDMTASKINT(). */
typedef FNPDMTASKINT *PFNPDMTASKINT;
/** @name PDMTASK_F_XXX - Task creation flags.
* @{ */
/** Create a ring-0 triggerable task. */
#define PDMTASK_F_R0 RT_BIT_32(0)
/** Create a raw-mode triggerable task. */
#define PDMTASK_F_RC RT_BIT_32(1)
/** Create a ring-0 and raw-mode triggerable task. */
#define PDMTASK_F_RZ (PDMTASK_F_R0 | PDMTASK_F_RC)
/** Valid flags. */
#define PDMTASK_F_VALID_MASK UINT32_C(0x00000003)
/** @} */
#ifdef VBOX_IN_VMM
/**
* Task owner type.
*/
typedef enum PDMTASKTYPE
{
/** Invalid zero value. */
PDMTASKTYPE_INVALID = 0,
/** Device consumer. */
PDMTASKTYPE_DEV,
/** Driver consumer. */
PDMTASKTYPE_DRV,
/** USB device consumer. */
PDMTASKTYPE_USB,
/** Internal consumer. */
PDMTASKTYPE_INTERNAL,
/** End of valid values. */
PDMTASKTYPE_END,
/** Typical 32-bit type blowup. */
PDMTASKTYPE_32BIT_HACK = 0x7fffffff
} PDMTASKTYPE;
VMMR3_INT_DECL(int) PDMR3TaskCreate(PVM pVM, uint32_t fFlags, const char *pszName, PDMTASKTYPE enmType, void *pvOwner,
PFNRT pfnCallback, void *pvUser, PDMTASKHANDLE *phTask);
VMMR3_INT_DECL(int) PDMR3TaskCreateInternal(PVM pVM, uint32_t fFlags, const char *pszName,
PFNPDMTASKINT pfnCallback, void *pvUser, PDMTASKHANDLE *phTask);
VMMR3_INT_DECL(int) PDMR3TaskDestroyAllByOwner(PVM pVM, PDMTASKTYPE enmType, void *pvOwner);
VMMR3_INT_DECL(int) PDMR3TaskDestroySpecific(PVM pVM, PDMTASKTYPE enmType, void *pvOwner, PDMTASKHANDLE hTask);
VMMR3_INT_DECL(int) PDMR3TaskDestroyInternal(PVM pVM, PDMTASKHANDLE hTask);
VMM_INT_DECL(int) PDMTaskTrigger(PVMCC pVM, PDMTASKTYPE enmType, RTR3PTR pvOwner, PDMTASKHANDLE hTask);
VMM_INT_DECL(int) PDMTaskTriggerInternal(PVMCC pVM, PDMTASKHANDLE hTask);
#endif /* VBOX_IN_VMM */
/** @} */
RT_C_DECLS_END
#endif /* !VBOX_INCLUDED_vmm_pdmtask_h */
|
