ReactOS 0.4.15-dev-8222-g9164419
VirtIOPCIModern.c
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1/*
2 * Virtio PCI driver - modern (virtio 1.0) device support
3 *
4 * Copyright IBM Corp. 2007
5 * Copyright Red Hat, Inc. 2014
6 *
7 * Authors:
8 * Anthony Liguori <aliguori@us.ibm.com>
9 * Rusty Russell <rusty@rustcorp.com.au>
10 * Michael S. Tsirkin <mst@redhat.com>
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met :
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and / or other materials provided with the distribution.
20 * 3. Neither the names of the copyright holders nor the names of their contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35#include "osdep.h"
36#define VIRTIO_PCI_NO_LEGACY
37#include "virtio_pci.h"
38#include "VirtIO.h"
39#include "kdebugprint.h"
40#include "virtio_ring.h"
41#include "virtio_pci_common.h"
43#include <stddef.h>
44
45#ifdef WPP_EVENT_TRACING
46#include "VirtIOPCIModern.tmh"
47#endif
48
49static void *vio_modern_map_capability(VirtIODevice *vdev, int cap_offset,
50 size_t minlen, u32 alignment,
51 u32 start, u32 size, size_t *len)
52{
53 u8 bar;
54 u32 bar_offset, bar_length;
55 void *addr;
56
57 pci_read_config_byte(vdev, cap_offset + offsetof(struct virtio_pci_cap, bar), &bar);
58 pci_read_config_dword(vdev, cap_offset + offsetof(struct virtio_pci_cap, offset), &bar_offset);
59 pci_read_config_dword(vdev, cap_offset + offsetof(struct virtio_pci_cap, length), &bar_length);
60
61 if (start + minlen > bar_length) {
62 DPrintf(0, "bar %i cap is not large enough to map %zu bytes at offset %u\n", bar, minlen, start);
63 return NULL;
64 }
65
66 bar_length -= start;
67 bar_offset += start;
68
69 if (bar_offset & (alignment - 1)) {
70 DPrintf(0, "bar %i offset %u not aligned to %u\n", bar, bar_offset, alignment);
71 return NULL;
72 }
73
74 if (bar_length > size) {
75 bar_length = size;
76 }
77
78 if (len) {
79 *len = bar_length;
80 }
81
82 if (bar_offset + minlen > pci_get_resource_len(vdev, bar)) {
83 DPrintf(0, "bar %i is not large enough to map %zu bytes at offset %u\n", bar, minlen, bar_offset);
84 return NULL;
85 }
86
87 addr = pci_map_address_range(vdev, bar, bar_offset, bar_length);
88 if (!addr) {
89 DPrintf(0, "unable to map %u bytes at bar %i offset %u\n", bar_length, bar, bar_offset);
90 }
91 return addr;
92}
93
94static void *vio_modern_map_simple_capability(VirtIODevice *vdev, int cap_offset, size_t length, u32 alignment)
95{
97 vdev,
98 cap_offset,
99 length, // minlen
100 alignment,
101 0, // offset
102 (u32)length, // size is equal to minlen
103 NULL); // not interested in the full length
104}
105
106static void vio_modern_get_config(VirtIODevice *vdev, unsigned offset,
107 void *buf, unsigned len)
108{
109 if (!vdev->config) {
110 ASSERT(!"Device has no config to read");
111 return;
112 }
113 if (offset + len > vdev->config_len) {
114 ASSERT(!"Can't read beyond the config length");
115 return;
116 }
117
118 switch (len) {
119 case 1:
120 *(u8 *)buf = ioread8(vdev, vdev->config + offset);
121 break;
122 case 2:
123 *(u16 *)buf = ioread16(vdev, vdev->config + offset);
124 break;
125 case 4:
126 *(u32 *)buf = ioread32(vdev, vdev->config + offset);
127 break;
128 default:
129 ASSERT(!"Only 1, 2, 4 byte config reads are supported");
130 }
131}
132
133static void vio_modern_set_config(VirtIODevice *vdev, unsigned offset,
134 const void *buf, unsigned len)
135{
136 if (!vdev->config) {
137 ASSERT(!"Device has no config to write");
138 return;
139 }
140 if (offset + len > vdev->config_len) {
141 ASSERT(!"Can't write beyond the config length");
142 return;
143 }
144
145 switch (len) {
146 case 1:
147 iowrite8(vdev, *(u8 *)buf, vdev->config + offset);
148 break;
149 case 2:
150 iowrite16(vdev, *(u16 *)buf, vdev->config + offset);
151 break;
152 case 4:
153 iowrite32(vdev, *(u32 *)buf, vdev->config + offset);
154 break;
155 default:
156 ASSERT(!"Only 1, 2, 4 byte config writes are supported");
157 }
158}
159
161{
162 return ioread8(vdev, &vdev->common->config_generation);
163}
164
166{
167 return ioread8(vdev, &vdev->common->device_status);
168}
169
171{
172 /* We should never be setting status to 0. */
173 ASSERT(status != 0);
174 iowrite8(vdev, status, &vdev->common->device_status);
175}
176
178{
179 /* 0 status means a reset. */
180 iowrite8(vdev, 0, &vdev->common->device_status);
181 /* After writing 0 to device_status, the driver MUST wait for a read of
182 * device_status to return 0 before reinitializing the device.
183 * This will flush out the status write, and flush in device writes,
184 * including MSI-X interrupts, if any.
185 */
186 while (ioread8(vdev, &vdev->common->device_status)) {
187 u16 val;
188 if (pci_read_config_word(vdev, 0, &val) || val == 0xffff) {
189 DPrintf(0, "PCI config space is not readable, probably the device is removed\n", 0);
190 break;
191 }
192 vdev_sleep(vdev, 1);
193 }
194}
195
197{
198 u64 features;
199
200 iowrite32(vdev, 0, &vdev->common->device_feature_select);
201 features = ioread32(vdev, &vdev->common->device_feature);
202 iowrite32(vdev, 1, &vdev->common->device_feature_select);
203 features |= ((u64)ioread32(vdev, &vdev->common->device_feature) << 32);
204
205 return features;
206}
207
209{
210 /* Give virtio_ring a chance to accept features. */
211 vring_transport_features(vdev, &features);
212
214 DPrintf(0, "virtio: device uses modern interface but does not have VIRTIO_F_VERSION_1\n", 0);
216 }
217
218 iowrite32(vdev, 0, &vdev->common->guest_feature_select);
219 iowrite32(vdev, (u32)features, &vdev->common->guest_feature);
220 iowrite32(vdev, 1, &vdev->common->guest_feature_select);
221 iowrite32(vdev, features >> 32, &vdev->common->guest_feature);
222
223 return STATUS_SUCCESS;
224}
225
227{
228 /* Setup the vector used for configuration events */
229 iowrite16(vdev, vector, &vdev->common->msix_config);
230 /* Verify we had enough resources to assign the vector */
231 /* Will also flush the write out to device */
232 return ioread16(vdev, &vdev->common->msix_config);
233}
234
236{
237 VirtIODevice *vdev = vq->vdev;
238 volatile struct virtio_pci_common_cfg *cfg = vdev->common;
239
240 iowrite16(vdev, (u16)vq->index, &cfg->queue_select);
241 iowrite16(vdev, vector, &cfg->queue_msix_vector);
242 return ioread16(vdev, &cfg->queue_msix_vector);
243}
244
245static size_t vring_pci_size(u16 num, bool packed)
246{
247 /* We only need a cacheline separation. */
249}
250
252 unsigned index,
253 unsigned short *pNumEntries,
254 unsigned long *pRingSize,
255 unsigned long *pHeapSize)
256{
257 volatile struct virtio_pci_common_cfg *cfg = vdev->common;
258 u16 num;
259
260 if (index >= ioread16(vdev, &cfg->num_queues)) {
261 return STATUS_NOT_FOUND;
262 }
263
264 /* Select the queue we're interested in */
265 iowrite16(vdev, (u16)index, &cfg->queue_select);
266
267 /* Check if queue is either not available or already active. */
268 num = ioread16(vdev, &cfg->queue_size);
269 /* QEMU has a bug where queues don't revert to inactive on device
270 * reset. Skip checking the queue_enable field until it is fixed.
271 */
272 if (!num /*|| ioread16(vdev, &cfg->queue_enable)*/) {
273 return STATUS_NOT_FOUND;
274 }
275
276 if (num & (num - 1)) {
277 DPrintf(0, "%p: bad queue size %u", vdev, num);
279 }
280
281 *pNumEntries = num;
282 *pRingSize = (unsigned long)vring_pci_size(num, vdev->packed_ring);
283 *pHeapSize = vring_control_block_size(num, vdev->packed_ring);
284
285 return STATUS_SUCCESS;
286}
287
289 VirtIODevice *vdev,
291 unsigned index,
292 u16 msix_vec)
293{
294 volatile struct virtio_pci_common_cfg *cfg = vdev->common;
295 struct virtqueue *vq;
296 void *vq_addr;
297 u16 off;
298 unsigned long ring_size, heap_size;
300
301 /* select the queue and query allocation parameters */
302 status = vio_modern_query_vq_alloc(vdev, index, &info->num, &ring_size, &heap_size);
303 if (!NT_SUCCESS(status)) {
304 return status;
305 }
306
307 /* get offset of notification word for this vq */
308 off = ioread16(vdev, &cfg->queue_notify_off);
309
310 /* try to allocate contiguous pages, scale down on failure */
312 if (info->num > 0) {
313 info->num /= 2;
314 } else {
316 }
317 }
318
319 vq_addr = mem_alloc_nonpaged_block(vdev, heap_size);
320 if (vq_addr == NULL) {
322 }
323
324 /* create the vring */
325 if (vdev->packed_ring) {
328 info->queue, vp_notify, vq_addr);
329 } else {
332 info->queue, vp_notify, vq_addr);
333 }
334
335 if (!vq) {
337 goto err_new_queue;
338 }
339
340 /* activate the queue */
341 iowrite16(vdev, info->num, &cfg->queue_size);
343 &cfg->queue_desc_lo, &cfg->queue_desc_hi);
345 &cfg->queue_avail_lo, &cfg->queue_avail_hi);
347 &cfg->queue_used_lo, &cfg->queue_used_hi);
348
349 if (vdev->notify_base) {
350 /* offset should not wrap */
351 if ((u64)off * vdev->notify_offset_multiplier + 2
352 > vdev->notify_len) {
353 DPrintf(0,
354 "%p: bad notification offset %u (x %u) "
355 "for queue %u > %zd",
356 vdev,
360 goto err_map_notify;
361 }
362 vq->notification_addr = (void *)(vdev->notify_base +
364 } else {
366 vdev->notify_map_cap, 2, 2,
368 NULL);
369 }
370
371 if (!vq->notification_addr) {
373 goto err_map_notify;
374 }
375
376 if (msix_vec != VIRTIO_MSI_NO_VECTOR) {
377 msix_vec = vdev->device->set_queue_vector(vq, msix_vec);
378 if (msix_vec == VIRTIO_MSI_NO_VECTOR) {
380 goto err_assign_vector;
381 }
382 }
383
384 /* enable the queue */
385 iowrite16(vdev, 1, &vdev->common->queue_enable);
386
387 *queue = vq;
388 return STATUS_SUCCESS;
389
390err_assign_vector:
391err_map_notify:
393err_new_queue:
396 return status;
397}
398
400{
401 struct virtqueue *vq = info->vq;
402 VirtIODevice *vdev = vq->vdev;
403
404 iowrite16(vdev, (u16)vq->index, &vdev->common->queue_select);
405
406 if (vdev->msix_used) {
407 iowrite16(vdev, VIRTIO_MSI_NO_VECTOR, &vdev->common->queue_msix_vector);
408 /* Flush the write out to device */
409 ioread16(vdev, &vdev->common->queue_msix_vector);
410 }
411
413
416}
417
419 /* .get_config = */ vio_modern_get_config,
420 /* .set_config = */ vio_modern_set_config,
421 /* .get_config_generation = */ vio_modern_get_generation,
422 /* .get_status = */ vio_modern_get_status,
423 /* .set_status = */ vio_modern_set_status,
424 /* .reset = */ vio_modern_reset,
425 /* .get_features = */ vio_modern_get_features,
426 /* .set_features = */ vio_modern_set_features,
427 /* .set_config_vector = */ vio_modern_set_config_vector,
428 /* .set_queue_vector = */ vio_modern_set_queue_vector,
429 /* .query_queue_alloc = */ vio_modern_query_vq_alloc,
430 /* .setup_queue = */ vio_modern_setup_vq,
431 /* .delete_queue = */ vio_modern_del_vq,
432};
433
435{
436 u8 id = 0;
437 int iterations = 48;
438
439 if (pci_read_config_byte(vdev, offset, &offset) != 0) {
440 return 0;
441 }
442
443 while (iterations-- && offset >= 0x40) {
444 offset &= ~3;
446 CapabilityID), &id) != 0) {
447 break;
448 }
449 if (id == 0xFF) {
450 break;
451 }
453 return offset;
454 }
456 Next), &offset) != 0) {
457 break;
458 }
459 }
460 return 0;
461}
462
464{
465 u8 hdr_type, offset;
466 u16 status;
467
468 if (pci_read_config_byte(vdev, offsetof(PCI_COMMON_HEADER, HeaderType), &hdr_type) != 0) {
469 return 0;
470 }
472 return 0;
473 }
475 return 0;
476 }
477
478 switch (hdr_type & ~PCI_MULTIFUNCTION) {
479 case PCI_BRIDGE_TYPE:
480 offset = offsetof(PCI_COMMON_HEADER, u.type1.CapabilitiesPtr);
481 break;
483 offset = offsetof(PCI_COMMON_HEADER, u.type2.CapabilitiesPtr);
484 break;
485 default:
486 offset = offsetof(PCI_COMMON_HEADER, u.type0.CapabilitiesPtr);
487 break;
488 }
489
490 if (offset != 0) {
492 }
493 return offset;
494}
495
496/* Populate Offsets with virtio vendor capability offsets within the PCI config space */
497static void find_pci_vendor_capabilities(VirtIODevice *vdev, int *Offsets, size_t nOffsets)
498{
500 while (offset > 0) {
501 u8 cfg_type, bar;
502 pci_read_config_byte(vdev, offset + offsetof(struct virtio_pci_cap, cfg_type), &cfg_type);
504
505 if (bar < PCI_TYPE0_ADDRESSES &&
506 cfg_type < nOffsets &&
507 pci_get_resource_len(vdev, bar) > 0) {
508 Offsets[cfg_type] = offset;
509 }
510
512 }
513}
514
515/* Modern device initialization */
517{
518 int capabilities[VIRTIO_PCI_CAP_PCI_CFG];
519
520 u32 notify_length;
521 u32 notify_offset;
522
523 RtlZeroMemory(capabilities, sizeof(capabilities));
525
526 /* Check for a common config, if not found use legacy mode */
527 if (!capabilities[VIRTIO_PCI_CAP_COMMON_CFG]) {
528 DPrintf(0, "%s(%p): device not found\n", __FUNCTION__, vdev);
530 }
531
532 /* Check isr and notify caps, if not found fail */
533 if (!capabilities[VIRTIO_PCI_CAP_ISR_CFG] || !capabilities[VIRTIO_PCI_CAP_NOTIFY_CFG]) {
534 DPrintf(0, "%s(%p): missing capabilities %i/%i/%i\n",
535 __FUNCTION__, vdev,
536 capabilities[VIRTIO_PCI_CAP_COMMON_CFG],
537 capabilities[VIRTIO_PCI_CAP_ISR_CFG],
538 capabilities[VIRTIO_PCI_CAP_NOTIFY_CFG]);
540 }
541
542 /* Map bars according to the capabilities */
544 capabilities[VIRTIO_PCI_CAP_COMMON_CFG],
545 sizeof(struct virtio_pci_common_cfg), 4);
546 if (!vdev->common) {
548 }
549
551 capabilities[VIRTIO_PCI_CAP_ISR_CFG],
552 sizeof(u8), 1);
553 if (!vdev->isr) {
555 }
556
557 /* Read notify_off_multiplier from config space. */
560 notify_off_multiplier),
562
563 /* Read notify length and offset from config space. */
566 cap.length),
567 &notify_length);
570 cap.offset),
571 &notify_offset);
572
573 /* Map the notify capability if it's small enough.
574 * Otherwise, map each VQ individually later.
575 */
576 if (notify_length + (notify_offset % PAGE_SIZE) <= PAGE_SIZE) {
578 capabilities[VIRTIO_PCI_CAP_NOTIFY_CFG], 2, 2,
579 0, notify_length,
580 &vdev->notify_len);
581 if (!vdev->notify_base) {
583 }
584 } else {
585 vdev->notify_map_cap = capabilities[VIRTIO_PCI_CAP_NOTIFY_CFG];
586 }
587
588 /* Map the device config capability, the PAGE_SIZE size is a guess */
589 if (capabilities[VIRTIO_PCI_CAP_DEVICE_CFG]) {
591 capabilities[VIRTIO_PCI_CAP_DEVICE_CFG], 0, 4,
592 0, PAGE_SIZE,
593 &vdev->config_len);
594 if (!vdev->config) {
596 }
597 }
598
600
601 return STATUS_SUCCESS;
602}
static u8 vio_modern_get_status(VirtIODevice *vdev)
static void * vio_modern_map_simple_capability(VirtIODevice *vdev, int cap_offset, size_t length, u32 alignment)
static u8 find_first_pci_vendor_capability(VirtIODevice *vdev)
static u32 vio_modern_get_generation(VirtIODevice *vdev)
static u64 vio_modern_get_features(VirtIODevice *vdev)
static u16 vio_modern_set_queue_vector(struct virtqueue *vq, u16 vector)
static u8 find_next_pci_vendor_capability(VirtIODevice *vdev, u8 offset)
static void find_pci_vendor_capabilities(VirtIODevice *vdev, int *Offsets, size_t nOffsets)
static const struct virtio_device_ops virtio_pci_device_ops
static u16 vio_modern_set_config_vector(VirtIODevice *vdev, u16 vector)
static void vio_modern_get_config(VirtIODevice *vdev, unsigned offset, void *buf, unsigned len)
static void vio_modern_reset(VirtIODevice *vdev)
static void vio_modern_del_vq(VirtIOQueueInfo *info)
NTSTATUS vio_modern_initialize(VirtIODevice *vdev)
static void * vio_modern_map_capability(VirtIODevice *vdev, int cap_offset, size_t minlen, u32 alignment, u32 start, u32 size, size_t *len)
static NTSTATUS vio_modern_setup_vq(struct virtqueue **queue, VirtIODevice *vdev, VirtIOQueueInfo *info, unsigned index, u16 msix_vec)
static void vio_modern_set_status(VirtIODevice *vdev, u8 status)
static void vio_modern_set_config(VirtIODevice *vdev, unsigned offset, const void *buf, unsigned len)
static NTSTATUS vio_modern_query_vq_alloc(VirtIODevice *vdev, unsigned index, unsigned short *pNumEntries, unsigned long *pRingSize, unsigned long *pHeapSize)
static NTSTATUS vio_modern_set_features(VirtIODevice *vdev, u64 features)
static size_t vring_pci_size(u16 num, bool packed)
struct virtqueue * vring_new_virtqueue_packed(unsigned int index, unsigned int num, unsigned int vring_align, VirtIODevice *vdev, void *pages, void(*notify)(struct virtqueue *), void *control)
struct virtqueue * vring_new_virtqueue_split(unsigned int index, unsigned int num, unsigned int vring_align, VirtIODevice *vdev, void *pages, void(*notify)(struct virtqueue *), void *control)
Definition: VirtIORing.c:486
unsigned int vring_control_block_size(u16 qsize, bool packed)
Definition: VirtIORing.c:474
static void virtqueue_shutdown(struct virtqueue *vq)
Definition: VirtIO.h:120
LONG NTSTATUS
Definition: precomp.h:26
ULONG32 u32
Definition: btrfs.h:14
ULONG64 u64
Definition: btrfs.h:15
UCHAR u8
Definition: btrfs.h:12
USHORT u16
Definition: btrfs.h:13
Definition: _queue.h:67
#define NULL
Definition: types.h:112
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define __FUNCTION__
Definition: types.h:116
#define DPrintf(Level, Fmt)
Definition: kdebugprint.h:61
void bar()
Definition: ehthrow.cxx:142
#define PAGE_SIZE
Definition: env_spec_w32.h:49
Status
Definition: gdiplustypes.h:25
GLuint start
Definition: gl.h:1545
GLsizeiptr size
Definition: glext.h:5919
GLuint index
Definition: glext.h:6031
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
GLuint GLsizei GLsizei * length
Definition: glext.h:6040
GLenum const GLvoid * addr
Definition: glext.h:9621
GLuint GLfloat * val
Definition: glext.h:7180
GLuint GLuint num
Definition: glext.h:9618
GLenum GLsizei len
Definition: glext.h:6722
GLuint GLenum GLsizei GLsizei GLint GLint GLboolean packed
Definition: glext.h:9271
GLenum cap
Definition: glext.h:9639
GLintptr offset
Definition: glext.h:5920
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble * u
Definition: glfuncs.h:240
#define ASSERT(a)
Definition: mode.c:44
#define SMP_CACHE_BYTES
Definition: osdep.h:41
#define long
Definition: qsort.c:33
#define offsetof(TYPE, MEMBER)
#define u64
Definition: types.h:10
#define STATUS_SUCCESS
Definition: shellext.h:65
#define STATUS_NOT_FOUND
Definition: shellext.h:72
Definition: ps.c:97
volatile unsigned char * config
Definition: virtio_pci.h:264
volatile u8 * isr
Definition: virtio_pci.h:260
volatile struct virtio_pci_common_cfg * common
Definition: virtio_pci.h:263
size_t notify_len
Definition: virtio_pci.h:270
int notify_map_cap
Definition: virtio_pci.h:266
const struct virtio_device_ops * device
Definition: virtio_pci.h:251
volatile unsigned char * notify_base
Definition: virtio_pci.h:265
size_t config_len
Definition: virtio_pci.h:269
u32 notify_offset_multiplier
Definition: virtio_pci.h:267
bool packed_ring
Definition: virtio_pci.h:248
void * notification_addr
Definition: VirtIO.h:47
unsigned int index
Definition: VirtIO.h:45
void * avail_va
Definition: VirtIO.h:48
void * used_va
Definition: VirtIO.h:49
VirtIODevice * vdev
Definition: VirtIO.h:44
#define RtlZeroMemory(Destination, Length)
Definition: typedefs.h:262
#define STATUS_DEVICE_NOT_CONNECTED
Definition: udferr_usr.h:160
#define STATUS_INVALID_PARAMETER
Definition: udferr_usr.h:135
#define STATUS_DEVICE_BUSY
Definition: udferr_usr.h:129
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
#define VIRTIO_F_VERSION_1
Definition: virtio_config.h:63
#define VIRTIO_PCI_CAP_PCI_CFG
Definition: virtio_pci.h:111
#define VIRTIO_PCI_CAP_DEVICE_CFG
Definition: virtio_pci.h:109
#define virtio_is_feature_enabled(FeaturesList, Feature)
Definition: virtio_pci.h:311
#define VIRTIO_MSI_NO_VECTOR
Definition: virtio_pci.h:98
#define VIRTIO_PCI_CAP_ISR_CFG
Definition: virtio_pci.h:107
#define VIRTIO_PCI_CAP_NOTIFY_CFG
Definition: virtio_pci.h:105
#define VIRTIO_PCI_CAP_COMMON_CFG
Definition: virtio_pci.h:103
#define pci_read_config_byte(vdev, where, bVal)
#define mem_get_physical_address(vdev, virt)
#define mem_free_nonpaged_block(vdev, addr)
#define ioread16(vdev, addr)
#define pci_read_config_word(vdev, where, wVal)
#define mem_alloc_nonpaged_block(vdev, size)
#define pci_map_address_range(vdev, bar, offset, maxlen)
#define iowrite64_twopart(vdev, val, lo_addr, hi_addr)
#define mem_alloc_contiguous_pages(vdev, size)
#define mem_free_contiguous_pages(vdev, virt)
#define iowrite32(vdev, val, addr)
#define vdev_sleep(vdev, msecs)
#define pci_read_config_dword(vdev, where, dwVal)
void vp_notify(struct virtqueue *vq)
#define pci_get_resource_len(vdev, bar)
#define iowrite16(vdev, val, addr)
#define ioread8(vdev, addr)
#define iowrite8(vdev, val, addr)
#define ioread32(vdev, addr)
unsigned long vring_size(unsigned int num, unsigned long align, bool packed)
Definition: VirtIORing.c:555
void vring_transport_features(VirtIODevice *vdev, u64 *features)
Definition: VirtIORing.c:534
#define PCI_MULTIFUNCTION
Definition: iotypes.h:3604
#define PCI_TYPE0_ADDRESSES
Definition: iotypes.h:3500
#define PCI_CAPABILITY_ID_VENDOR_SPECIFIC
Definition: iotypes.h:3655
#define PCI_BRIDGE_TYPE
Definition: iotypes.h:3606
#define PCI_STATUS_CAPABILITIES_LIST
Definition: iotypes.h:3630
#define PCI_CARDBUS_BRIDGE_TYPE
Definition: iotypes.h:3607
#define ROUND_TO_PAGES(Size)