]>
Commit | Line | Data |
---|---|---|
fc4d1ce5 OM |
1 | /** @file\r |
2 | Virtio Device\r | |
3 | \r | |
4 | DISCLAIMER: the VIRTIO_DEVICE_PROTOCOL introduced here is a work in progress,\r | |
5 | and should not be used outside of the EDK II tree.\r | |
6 | \r | |
7 | Copyright (c) 2013, ARM Ltd. All rights reserved.<BR>\r | |
87811526 | 8 | Copyright (c) 2017, AMD Inc, All rights reserved.<BR>\r |
fc4d1ce5 | 9 | \r |
b26f0cf9 | 10 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
fc4d1ce5 OM |
11 | \r |
12 | **/\r | |
13 | \r | |
14 | #ifndef __VIRTIO_DEVICE_H__\r | |
15 | #define __VIRTIO_DEVICE_H__\r | |
16 | \r | |
07af4eee LE |
17 | #include <IndustryStandard/Virtio.h>\r |
18 | \r | |
a136bc3c BS |
19 | //\r |
20 | // VirtIo Specification Revision: Major[31:24].Minor[23:16].Revision[15:0]\r | |
21 | //\r | |
fc4d1ce5 OM |
22 | #define VIRTIO_SPEC_REVISION(major,minor,revision) \\r |
23 | ((((major) & 0xFF) << 24) | (((minor) & 0xFF) << 16) | ((revision) & 0xFFFF))\r | |
24 | \r | |
25 | #define VIRTIO_DEVICE_PROTOCOL_GUID { \\r | |
26 | 0xfa920010, 0x6785, 0x4941, {0xb6, 0xec, 0x49, 0x8c, 0x57, 0x9f, 0x16, 0x0a }\\r | |
27 | }\r | |
28 | \r | |
29 | typedef struct _VIRTIO_DEVICE_PROTOCOL VIRTIO_DEVICE_PROTOCOL;\r | |
30 | \r | |
87811526 BS |
31 | //\r |
32 | // VIRTIO Operation for VIRTIO_MAP_SHARED\r | |
33 | //\r | |
34 | typedef enum {\r | |
35 | //\r | |
36 | // A read operation from system memory by a bus master\r | |
37 | //\r | |
38 | VirtioOperationBusMasterRead,\r | |
39 | //\r | |
40 | // A write operation to system memory by a bus master\r | |
41 | //\r | |
42 | VirtioOperationBusMasterWrite,\r | |
43 | //\r | |
44 | // Provides both read and write access to system memory by both the\r | |
45 | // processor and a bus master\r | |
46 | //\r | |
47 | VirtioOperationBusMasterCommonBuffer,\r | |
48 | } VIRTIO_MAP_OPERATION;\r | |
49 | \r | |
fc4d1ce5 OM |
50 | /**\r |
51 | \r | |
52 | Read a word from the device-specific I/O region of the Virtio Header.\r | |
53 | \r | |
54 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
55 | \r | |
56 | @param[in] FieldOffset Source offset.\r | |
57 | \r | |
58 | @param[in] FieldSize Source field size in bytes, must be in {1, 2, 4, 8}.\r | |
59 | \r | |
60 | @param[in] BufferSize Number of bytes available in the target buffer. Must\r | |
61 | equal FieldSize.\r | |
62 | \r | |
63 | @param[out] Buffer Target buffer.\r | |
64 | \r | |
65 | @retval EFI_SUCCESS The data was read successfully.\r | |
66 | @retval EFI_UNSUPPORTED The underlying IO device doesn't support the\r | |
67 | provided address offset and read size.\r | |
68 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a\r | |
69 | lack of resources.\r | |
70 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r | |
71 | \r | |
72 | **/\r | |
73 | typedef\r | |
74 | EFI_STATUS\r | |
75 | (EFIAPI *VIRTIO_DEVICE_READ) (\r | |
76 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
77 | IN UINTN FieldOffset,\r | |
78 | IN UINTN FieldSize,\r | |
79 | IN UINTN BufferSize,\r | |
80 | OUT VOID *Buffer\r | |
81 | );\r | |
82 | \r | |
83 | /**\r | |
84 | \r | |
85 | Write a word to the device-specific I/O region of the Virtio Header.\r | |
86 | \r | |
87 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
88 | \r | |
89 | @param[in] FieldOffset Destination offset.\r | |
90 | \r | |
91 | @param[in] FieldSize Destination field size in bytes,\r | |
92 | must be in {1, 2, 4, 8}.\r | |
93 | \r | |
94 | @param[out] Value Value to write.\r | |
95 | \r | |
96 | @retval EFI_SUCCESS The data was written successfully.\r | |
97 | @retval EFI_UNSUPPORTED The underlying IO device doesn't support the\r | |
98 | provided address offset and write size.\r | |
99 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a\r | |
100 | lack of resources.\r | |
101 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r | |
102 | \r | |
103 | **/\r | |
104 | typedef\r | |
105 | EFI_STATUS\r | |
106 | (EFIAPI *VIRTIO_DEVICE_WRITE) (\r | |
107 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
108 | IN UINTN FieldOffset,\r | |
109 | IN UINTN FieldSize,\r | |
110 | IN UINT64 Value\r | |
111 | );\r | |
112 | \r | |
113 | /**\r | |
114 | Read the device features field from the Virtio Header.\r | |
115 | \r | |
116 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
117 | \r | |
bc8fde6f | 118 | @param[out] DeviceFeatures The device features field.\r |
fc4d1ce5 OM |
119 | \r |
120 | @retval EFI_SUCCESS The data was read successfully.\r | |
121 | @retval EFI_UNSUPPORTED The underlying IO device doesn't support the\r | |
122 | provided address offset and read size.\r | |
123 | @retval EFI_INVALID_PARAMETER DeviceFeatures is NULL\r | |
124 | **/\r | |
125 | typedef\r | |
126 | EFI_STATUS\r | |
127 | (EFIAPI *VIRTIO_GET_DEVICE_FEATURES) (\r | |
128 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
bc8fde6f | 129 | OUT UINT64 *DeviceFeatures\r |
fc4d1ce5 OM |
130 | );\r |
131 | \r | |
132 | /**\r | |
133 | Write the guest features field in the Virtio Header.\r | |
134 | \r | |
135 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
136 | \r | |
bc8fde6f | 137 | @param[in] Features The guest features field\r |
fc4d1ce5 OM |
138 | \r |
139 | **/\r | |
140 | typedef\r | |
141 | EFI_STATUS\r | |
142 | (EFIAPI *VIRTIO_SET_GUEST_FEATURES) (\r | |
143 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
bc8fde6f | 144 | IN UINT64 Features\r |
fc4d1ce5 OM |
145 | );\r |
146 | \r | |
fc4d1ce5 | 147 | /**\r |
07af4eee | 148 | Write the queue address field(s) in the Virtio Header.\r |
fc4d1ce5 OM |
149 | \r |
150 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
151 | \r | |
07af4eee | 152 | @param[in] Ring The initialized VRING object to take the\r |
53a4c604 BS |
153 | addresses from. The caller is responsible for\r |
154 | ensuring that on input, all Ring->NumPages pages,\r | |
155 | starting at Ring->Base, have been successfully\r | |
156 | mapped with a single call to\r | |
157 | This->MapSharedBuffer() for CommonBuffer bus\r | |
158 | master operation.\r | |
159 | \r | |
160 | @param[in] RingBaseShift Adding this value using UINT64 arithmetic to the\r | |
161 | addresses found in Ring translates them from\r | |
162 | system memory to bus addresses. The caller shall\r | |
163 | calculate RingBaseShift as\r | |
164 | (DeviceAddress - (UINT64)(UINTN)HostAddress),\r | |
165 | where DeviceAddress and HostAddress (i.e.,\r | |
166 | Ring->Base) were output and input parameters of\r | |
167 | This->MapSharedBuffer(), respectively.\r | |
fc4d1ce5 OM |
168 | \r |
169 | @retval EFI_SUCCESS The data was written successfully.\r | |
170 | @retval EFI_UNSUPPORTED The underlying IO device doesn't support the\r | |
171 | provided address offset and write size.\r | |
172 | **/\r | |
173 | typedef\r | |
174 | EFI_STATUS\r | |
175 | (EFIAPI *VIRTIO_SET_QUEUE_ADDRESS) (\r | |
176 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
53a4c604 BS |
177 | IN VRING *Ring,\r |
178 | IN UINT64 RingBaseShift\r | |
fc4d1ce5 OM |
179 | );\r |
180 | \r | |
181 | /**\r | |
182 | \r | |
183 | Write the queue select field in the Virtio Header.\r | |
184 | \r | |
185 | Writing to the queue select field sets the index of the queue to which\r | |
186 | operations such as SetQueueAlign and GetQueueNumMax apply.\r | |
187 | \r | |
188 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
189 | \r | |
190 | @param[in] Index The index of the queue to select\r | |
191 | \r | |
192 | @retval EFI_SUCCESS The data was written successfully.\r | |
193 | @retval EFI_UNSUPPORTED The underlying IO device doesn't support the\r | |
194 | provided address offset and write size.\r | |
195 | **/\r | |
196 | typedef\r | |
197 | EFI_STATUS\r | |
198 | (EFIAPI *VIRTIO_SET_QUEUE_SEL) (\r | |
199 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
200 | IN UINT16 Index\r | |
201 | );\r | |
202 | \r | |
203 | /**\r | |
204 | \r | |
205 | Write the queue notify field in the Virtio Header.\r | |
206 | \r | |
207 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
208 | \r | |
209 | @param[in] Address The 32-bit Queue Notify field\r | |
210 | \r | |
211 | @retval EFI_SUCCESS The data was written successfully.\r | |
212 | @retval EFI_UNSUPPORTED The underlying IO device doesn't support the\r | |
213 | provided address offset and write size.\r | |
214 | **/\r | |
215 | typedef\r | |
216 | EFI_STATUS\r | |
217 | (EFIAPI *VIRTIO_SET_QUEUE_NOTIFY) (\r | |
218 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
219 | IN UINT16 Index\r | |
220 | );\r | |
221 | \r | |
222 | /**\r | |
223 | Write the queue alignment field in the Virtio Header.\r | |
224 | \r | |
225 | The queue to which the alignment applies is selected by the Queue Select\r | |
226 | field.\r | |
227 | \r | |
228 | Note: This operation is not implemented by the VirtIo over PCI. The PCI\r | |
229 | implementation of this protocol returns EFI_SUCCESS.\r | |
230 | \r | |
231 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
232 | \r | |
233 | @param[in] Alignment The alignment boundary of the Used Ring in bytes.\r | |
234 | Must be a power of 2.\r | |
235 | \r | |
236 | @retval EFI_SUCCESS The data was written successfully.\r | |
237 | @retval EFI_UNSUPPORTED The underlying IO device doesn't support the\r | |
238 | provided address offset and write size.\r | |
239 | **/\r | |
240 | typedef\r | |
241 | EFI_STATUS\r | |
242 | (EFIAPI *VIRTIO_SET_QUEUE_ALIGN) (\r | |
243 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
244 | IN UINT32 Alignment\r | |
245 | );\r | |
246 | \r | |
247 | /**\r | |
248 | Write the guest page size.\r | |
249 | \r | |
250 | Note: This operation is not implemented by the VirtIo over PCI. The PCI\r | |
251 | implementation of this protocol returns EFI_SUCCESS.\r | |
252 | \r | |
253 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
254 | \r | |
255 | @param[in] PageSize Size of the Guest page in bytes.\r | |
256 | Must be a power of 2.\r | |
257 | \r | |
258 | @retval EFI_SUCCESS The data was written successfully.\r | |
259 | @retval EFI_UNSUPPORTED The underlying IO device doesn't support the\r | |
260 | provided address offset and write size.\r | |
261 | **/\r | |
262 | typedef\r | |
263 | EFI_STATUS\r | |
264 | (EFIAPI *VIRTIO_SET_PAGE_SIZE) (\r | |
265 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
266 | IN UINT32 PageSize\r | |
267 | );\r | |
268 | \r | |
269 | /**\r | |
270 | \r | |
271 | Get the size of the virtqueue selected by the queue select field.\r | |
272 | \r | |
273 | See Virtio spec Section 2.3\r | |
274 | \r | |
275 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
276 | \r | |
277 | @param[out] QueueNumMax The size of the virtqueue in bytes.\r | |
278 | Always a power of 2.\r | |
279 | \r | |
280 | @retval EFI_SUCCESS The data was read successfully.\r | |
281 | @retval EFI_UNSUPPORTED The underlying IO device doesn't support the\r | |
282 | provided address offset and read size.\r | |
283 | @retval EFI_INVALID_PARAMETER QueueNumMax is NULL\r | |
284 | **/\r | |
285 | typedef\r | |
286 | EFI_STATUS\r | |
287 | (EFIAPI *VIRTIO_GET_QUEUE_NUM_MAX) (\r | |
288 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
289 | OUT UINT16 *QueueNumMax\r | |
290 | );\r | |
291 | \r | |
292 | /**\r | |
293 | \r | |
294 | Write to the QueueNum field in the Virtio Header.\r | |
295 | \r | |
296 | This function only applies to Virtio-MMIO and may be a stub for other\r | |
297 | implementations. See Virtio Spec appendix X.\r | |
298 | \r | |
299 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
300 | \r | |
301 | @param[in] QueueSize The number of elements in the queue.\r | |
302 | \r | |
303 | @retval EFI_SUCCESS The data was written successfully.\r | |
304 | @retval EFI_UNSUPPORTED The underlying IO device doesn't support the\r | |
305 | provided address offset and write size.\r | |
306 | **/\r | |
307 | typedef\r | |
308 | EFI_STATUS\r | |
309 | (EFIAPI *VIRTIO_SET_QUEUE_NUM) (\r | |
310 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
311 | IN UINT16 QueueSize\r | |
312 | );\r | |
313 | \r | |
314 | /**\r | |
315 | \r | |
316 | Get the DeviceStatus field from the Virtio Header.\r | |
317 | \r | |
318 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
319 | \r | |
320 | @param[out] DeviceStatus The 8-bit value for the Device status field\r | |
321 | \r | |
322 | @retval EFI_SUCCESS The data was read successfully.\r | |
323 | @retval EFI_UNSUPPORTED The underlying IO device doesn't support the\r | |
324 | provided address offset and read size.\r | |
325 | @retval EFI_INVALID_PARAMETER DeviceStatus is NULL\r | |
326 | **/\r | |
327 | typedef\r | |
328 | EFI_STATUS\r | |
329 | (EFIAPI *VIRTIO_GET_DEVICE_STATUS) (\r | |
330 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
331 | OUT UINT8 *DeviceStatus\r | |
332 | );\r | |
333 | \r | |
334 | /**\r | |
335 | \r | |
336 | Write the DeviceStatus field in the Virtio Header.\r | |
337 | \r | |
338 | @param[in] This This instance of VIRTIO_DEVICE_PROTOCOL\r | |
339 | \r | |
340 | @param[in] DeviceStatus The 8-bit value for the Device status field\r | |
341 | \r | |
342 | @retval EFI_SUCCESS The data was written successfully.\r | |
343 | @retval EFI_UNSUPPORTED The underlying IO device doesn't support the\r | |
344 | provided address offset and write size.\r | |
345 | **/\r | |
346 | typedef\r | |
347 | EFI_STATUS\r | |
348 | (EFIAPI *VIRTIO_SET_DEVICE_STATUS) (\r | |
349 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
350 | IN UINT8 DeviceStatus\r | |
351 | );\r | |
352 | \r | |
87811526 BS |
353 | /**\r |
354 | \r | |
355 | Allocates pages that are suitable for an VirtioOperationBusMasterCommonBuffer\r | |
356 | mapping. This means that the buffer allocated by this function supports\r | |
357 | simultaneous access by both the processor and the bus master. The device\r | |
358 | address that the bus master uses to access the buffer must be retrieved with\r | |
359 | a call to VIRTIO_MAP_SHARED.\r | |
360 | \r | |
361 | @param[in] This The protocol instance pointer.\r | |
362 | \r | |
363 | @param[in] Pages The number of pages to allocate.\r | |
364 | \r | |
365 | @param[in,out] HostAddress A pointer to store the system memory base\r | |
366 | address of the allocated range.\r | |
367 | \r | |
368 | @retval EFI_SUCCESS The requested memory pages were allocated.\r | |
369 | @retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.\r | |
370 | \r | |
371 | **/\r | |
372 | typedef\r | |
373 | EFI_STATUS\r | |
374 | (EFIAPI *VIRTIO_ALLOCATE_SHARED)(\r | |
375 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
376 | IN UINTN Pages,\r | |
377 | IN OUT VOID **HostAddress\r | |
378 | );\r | |
379 | \r | |
380 | /**\r | |
381 | Frees memory that was allocated with VIRTIO_ALLOCATE_SHARED.\r | |
382 | \r | |
383 | @param[in] This The protocol instance pointer.\r | |
384 | \r | |
385 | @param[in] Pages The number of pages to free.\r | |
386 | \r | |
387 | @param[in] HostAddress The system memory base address of the allocated\r | |
388 | range.\r | |
389 | \r | |
390 | **/\r | |
391 | typedef\r | |
392 | VOID\r | |
393 | (EFIAPI *VIRTIO_FREE_SHARED)(\r | |
394 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
395 | IN UINTN Pages,\r | |
396 | IN VOID *HostAddress\r | |
397 | );\r | |
398 | \r | |
399 | /**\r | |
400 | Provides the virtio device address required to access system memory from a\r | |
401 | DMA bus master.\r | |
402 | \r | |
403 | The interface follows the same usage pattern as defined in UEFI spec 2.6\r | |
404 | (Section 13.2 PCI Root Bridge I/O Protocol)\r | |
405 | \r | |
406 | @param[in] This The protocol instance pointer.\r | |
407 | \r | |
408 | @param[in] Operation Indicates if the bus master is going to\r | |
409 | read or write to system memory.\r | |
410 | \r | |
411 | @param[in] HostAddress The system memory address to map to shared\r | |
412 | buffer address.\r | |
413 | \r | |
414 | @param[in,out] NumberOfBytes On input the number of bytes to map.\r | |
415 | On output the number of bytes that were\r | |
416 | mapped.\r | |
417 | \r | |
418 | @param[out] DeviceAddress The resulting shared map address for the\r | |
419 | bus master to access the hosts HostAddress.\r | |
420 | \r | |
421 | @param[out] Mapping A resulting token to pass to\r | |
422 | VIRTIO_UNMAP_SHARED.\r | |
423 | \r | |
424 | @retval EFI_SUCCESS The range was mapped for the returned\r | |
425 | NumberOfBytes.\r | |
426 | @retval EFI_UNSUPPORTED The HostAddress cannot be mapped as a\r | |
427 | common buffer.\r | |
428 | @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r | |
429 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to\r | |
430 | a lack of resources.\r | |
431 | @retval EFI_DEVICE_ERROR The system hardware could not map the\r | |
432 | requested address.\r | |
433 | **/\r | |
434 | \r | |
435 | typedef\r | |
436 | EFI_STATUS\r | |
437 | (EFIAPI *VIRTIO_MAP_SHARED) (\r | |
438 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
439 | IN VIRTIO_MAP_OPERATION Operation,\r | |
440 | IN VOID *HostAddress,\r | |
441 | IN OUT UINTN *NumberOfBytes,\r | |
442 | OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,\r | |
443 | OUT VOID **Mapping\r | |
444 | );\r | |
445 | \r | |
446 | /**\r | |
447 | Completes the VIRTIO_MAP_SHARED operation and releases any corresponding\r | |
448 | resources.\r | |
449 | \r | |
450 | @param[in] This The protocol instance pointer.\r | |
451 | \r | |
452 | @param[in] Mapping The mapping token returned from\r | |
453 | VIRTIO_MAP_SHARED.\r | |
454 | \r | |
455 | @retval EFI_SUCCESS The range was unmapped.\r | |
456 | @retval EFI_INVALID_PARAMETER Mapping is not a value that was returned by\r | |
457 | VIRTIO_MAP_SHARED. Passing an invalid Mapping\r | |
458 | token can cause undefined behavior.\r | |
459 | @retval EFI_DEVICE_ERROR The data was not committed to the target\r | |
460 | system memory.\r | |
461 | **/\r | |
462 | typedef\r | |
463 | EFI_STATUS\r | |
464 | (EFIAPI *VIRTIO_UNMAP_SHARED)(\r | |
465 | IN VIRTIO_DEVICE_PROTOCOL *This,\r | |
466 | IN VOID *Mapping\r | |
467 | );\r | |
fc4d1ce5 OM |
468 | \r |
469 | ///\r | |
470 | /// This protocol provides an abstraction over the VirtIo transport layer\r | |
471 | ///\r | |
472 | /// DISCLAIMER: this protocol is a work in progress, and should not be used\r | |
473 | /// outside of the EDK II tree.\r | |
474 | ///\r | |
475 | struct _VIRTIO_DEVICE_PROTOCOL {\r | |
a136bc3c BS |
476 | //\r |
477 | // VirtIo Specification Revision encoded with VIRTIO_SPEC_REVISION()\r | |
478 | //\r | |
fc4d1ce5 | 479 | UINT32 Revision;\r |
a136bc3c BS |
480 | //\r |
481 | // From the Virtio Spec\r | |
482 | //\r | |
fc4d1ce5 OM |
483 | INT32 SubSystemDeviceId;\r |
484 | \r | |
485 | VIRTIO_GET_DEVICE_FEATURES GetDeviceFeatures;\r | |
486 | VIRTIO_SET_GUEST_FEATURES SetGuestFeatures;\r | |
487 | \r | |
fc4d1ce5 OM |
488 | VIRTIO_SET_QUEUE_ADDRESS SetQueueAddress;\r |
489 | \r | |
490 | VIRTIO_SET_QUEUE_SEL SetQueueSel;\r | |
491 | \r | |
492 | VIRTIO_SET_QUEUE_NOTIFY SetQueueNotify;\r | |
493 | \r | |
494 | VIRTIO_SET_QUEUE_ALIGN SetQueueAlign;\r | |
495 | VIRTIO_SET_PAGE_SIZE SetPageSize;\r | |
496 | \r | |
497 | VIRTIO_GET_QUEUE_NUM_MAX GetQueueNumMax;\r | |
498 | VIRTIO_SET_QUEUE_NUM SetQueueNum;\r | |
499 | \r | |
500 | VIRTIO_GET_DEVICE_STATUS GetDeviceStatus;\r | |
501 | VIRTIO_SET_DEVICE_STATUS SetDeviceStatus;\r | |
502 | \r | |
a136bc3c | 503 | //\r |
fc4d1ce5 | 504 | // Functions to read/write Device Specific headers\r |
a136bc3c | 505 | //\r |
fc4d1ce5 OM |
506 | VIRTIO_DEVICE_WRITE WriteDevice;\r |
507 | VIRTIO_DEVICE_READ ReadDevice;\r | |
87811526 BS |
508 | \r |
509 | //\r | |
510 | // Functions to allocate, free, map and unmap shared buffer\r | |
511 | //\r | |
512 | VIRTIO_ALLOCATE_SHARED AllocateSharedPages;\r | |
513 | VIRTIO_FREE_SHARED FreeSharedPages;\r | |
514 | VIRTIO_MAP_SHARED MapSharedBuffer;\r | |
515 | VIRTIO_UNMAP_SHARED UnmapSharedBuffer;\r | |
fc4d1ce5 OM |
516 | };\r |
517 | \r | |
518 | extern EFI_GUID gVirtioDeviceProtocolGuid;\r | |
519 | \r | |
520 | #endif\r |