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
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/* $Id: Virtio-solaris.c $ */
/** @file
* VirtualBox Guest Additions - Virtio Driver for Solaris.
*/
/*
* Copyright (C) 2010-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox 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.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "Virtio-solaris.h"
#include <iprt/assert.h>
#include <iprt/mem.h>
#include <VBox/log.h>
/**
* Virtio Attach routine that should be called from all Virtio drivers' attach
* routines.
*
* @param pDip The module structure instance.
* @param enmCmd Operation type (attach/resume).
* @param pDeviceOps Pointer to device ops structure.
* @param pHyperOps Pointer to hypervisor ops structure.
*
* @return Solaris DDI error code. DDI_SUCCESS or DDI_FAILURE.
*/
int VirtioAttach(dev_info_t *pDip, ddi_attach_cmd_t enmCmd, PVIRTIODEVICEOPS pDeviceOps, PVIRTIOHYPEROPS pHyperOps)
{
LogFlowFunc((VIRTIOLOGNAME ":VirtioAttach: pDip=%p enmCmd=%d pDeviceOps=%p pHyperOps=%p\n", pDip, enmCmd, pDeviceOps, pHyperOps));
AssertReturn(pDip, DDI_EINVAL);
AssertReturn(pDeviceOps, DDI_EINVAL);
AssertReturn(pHyperOps, DDI_EINVAL);
if (enmCmd != DDI_ATTACH)
{
LogRel((VIRTIOLOGNAME ":VirtioAttach: Invalid enmCmd=%#x expected DDI_ATTACH\n", enmCmd));
return DDI_FAILURE;
}
int rc = DDI_FAILURE;
PVIRTIODEVICE pDevice = RTMemAllocZ(sizeof(VIRTIODEVICE));
if (RT_LIKELY(pDevice))
{
pDevice->pDip = pDip;
pDevice->pDeviceOps = pDeviceOps;
pDevice->pHyperOps = pHyperOps;
pDevice->pvDevice = pDevice->pDeviceOps->pfnAlloc(pDevice);
if (RT_LIKELY(pDevice->pvDevice))
{
pDevice->pvHyper = pDevice->pHyperOps->pfnAlloc(pDevice);
if (RT_LIKELY(pDevice->pvHyper))
{
/*
* Attach hypervisor interface and obtain features supported by host.
*/
rc = pDevice->pHyperOps->pfnAttach(pDevice);
if (rc == DDI_SUCCESS)
{
pDevice->fHostFeatures = pDevice->pHyperOps->pfnGetFeatures(pDevice);
LogFlow((VIRTIOLOGNAME ":VirtioAttach: Host features=%#x\n", pDevice->fHostFeatures));
/*
* Attach the device type interface.
*/
rc = pDevice->pDeviceOps->pfnAttach(pDevice);
if (rc == DDI_SUCCESS)
{
ddi_set_driver_private(pDip, pDevice);
return DDI_SUCCESS;
}
else
LogRel((VIRTIOLOGNAME ":VirtioAttach: DeviceOps pfnAttach failed. rc=%d\n", rc));
pDevice->pHyperOps->pfnDetach(pDevice);
}
else
LogRel((VIRTIOLOGNAME ":VirtioAttach: HyperOps pfnAttach failed. rc=%d\n", rc));
pDevice->pHyperOps->pfnFree(pDevice);
}
else
LogRel((VIRTIOLOGNAME ":VirtioAttach: HyperOps->pfnAlloc failed!\n"));
pDevice->pDeviceOps->pfnFree(pDevice);
}
else
LogRel((VIRTIOLOGNAME ":VirtioAttach: DeviceOps->pfnAlloc failed!\n"));
RTMemFree(pDevice);
}
else
LogRel((VIRTIOLOGNAME ":VirtioAttach: failed to alloc %u bytes for device structure.\n", sizeof(VIRTIODEVICE)));
return DDI_FAILURE;
}
/**
* Virtio Detach routine that should be called from all Virtio drivers' detach
* routines.
*
* @param pDip The module structure instance.
* @param enmCmd Operation type (detach/suspend).
*
* @return Solaris DDI error code. DDI_SUCCESS or DDI_FAILURE.
*/
int VirtioDetach(dev_info_t *pDip, ddi_detach_cmd_t enmCmd)
{
LogFlowFunc((VIRTIOLOGNAME ":VirtioDetach pDip=%p enmCmd=%d\n", pDip, enmCmd));
PVIRTIODEVICE pDevice = ddi_get_driver_private(pDip);
if (RT_UNLIKELY(!pDevice))
return DDI_FAILURE;
if (enmCmd != DDI_DETACH)
{
LogRel((VIRTIOLOGNAME ":VirtioDetach: Invalid enmCmd=%#x expected DDI_DETACH.\n", enmCmd));
return DDI_FAILURE;
}
int rc = pDevice->pDeviceOps->pfnDetach(pDevice);
if (rc == DDI_SUCCESS)
{
pDevice->pHyperOps->pfnDetach(pDevice);
pDevice->pDeviceOps->pfnFree(pDevice);
pDevice->pvDevice = NULL;
pDevice->pHyperOps->pfnFree(pDevice);
pDevice->pvHyper = NULL;
ddi_set_driver_private(pDevice->pDip, NULL);
RTMemFree(pDevice);
return DDI_SUCCESS;
}
else
LogRel((VIRTIOLOGNAME ":VirtioDetach: DeviceOps pfnDetach failed. rc=%d\n", rc));
return DDI_FAILURE;
}
/**
* Allocates a Virtio Queue object and assigns it an index.
*
* @param pDevice Pointer to the Virtio device instance.
* @param Index Queue index.
*
* @return A pointer to a Virtio Queue instance.
*/
PVIRTIOQUEUE VirtioGetQueue(PVIRTIODEVICE pDevice, uint16_t Index)
{
PVIRTIOQUEUE pQueue = RTMemAllocZ(sizeof(VIRTIOQUEUE));
if (RT_UNLIKELY(!pQueue))
{
LogRel((VIRTIOLOGNAME ":VirtioGetQueue: failed to alloc memory for %u bytes.\n", sizeof(VIRTIOQUEUE)));
return NULL;
}
pQueue->QueueIndex = Index;
pQueue->pvData = pDevice->pHyperOps->pfnGetQueue(pDevice, pQueue);
if (RT_UNLIKELY(!pQueue->pvData))
{
LogRel((VIRTIOLOGNAME ":VirtioGetQueue: HyperOps GetQueue failed!\n"));
RTMemFree(pQueue);
return NULL;
}
AssertReturn(pQueue->pQueue, NULL);
AssertReturn(pQueue->Ring.cDesc > 0, NULL);
/** @todo enable interrupt. */
return pQueue;
}
/**
* Puts a queue and destroys the instance.
*
* @param pDevice Pointer to the Virtio device instance.
* @param pQueue Pointer to the Virtio queue.
*/
void VirtioPutQueue(PVIRTIODEVICE pDevice, PVIRTIOQUEUE pQueue)
{
AssertReturnVoid(pDevice);
AssertReturnVoid(pQueue);
pDevice->pHyperOps->pfnPutQueue(pDevice, pQueue);
RTMemFree(pQueue);
}
|
