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1e57a462 | 1 | /** @file\r |
2 | *\r | |
6f711615 | 3 | * Copyright (c) 2011-2013, ARM Limited. All rights reserved.\r |
1e57a462 | 4 | * \r |
5 | * This program and the accompanying materials \r | |
6 | * are licensed and made available under the terms and conditions of the BSD License \r | |
7 | * which accompanies this distribution. The full text of the license may be found at \r | |
8 | * http://opensource.org/licenses/bsd-license.php \r | |
9 | *\r | |
10 | * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
11 | * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
12 | *\r | |
13 | **/\r | |
14 | \r | |
15 | #include "BdsInternal.h"\r | |
16 | \r | |
17 | #include <Protocol/UsbIo.h>\r | |
18 | #include <Protocol/DiskIo.h>\r | |
19 | #include <Protocol/LoadedImage.h>\r | |
20 | \r | |
21 | #define IS_DEVICE_PATH_NODE(node,type,subtype) (((node)->Type == (type)) && ((node)->SubType == (subtype)))\r | |
22 | \r | |
23 | // Extract the FilePath from the Device Path\r | |
24 | CHAR16*\r | |
25 | BdsExtractFilePathFromDevicePath (\r | |
26 | IN CONST CHAR16 *StrDevicePath,\r | |
27 | IN UINTN NumberDevicePathNode\r | |
28 | )\r | |
29 | {\r | |
30 | UINTN Node;\r | |
31 | CHAR16 *Str;\r | |
32 | \r | |
33 | Str = (CHAR16*)StrDevicePath;\r | |
34 | Node = 0;\r | |
35 | while ((Str != NULL) && (*Str != L'\0') && (Node < NumberDevicePathNode)) {\r | |
36 | if ((*Str == L'/') || (*Str == L'\\')) {\r | |
37 | Node++;\r | |
38 | }\r | |
39 | Str++;\r | |
40 | }\r | |
41 | \r | |
42 | if (*Str == L'\0') {\r | |
43 | return NULL;\r | |
44 | } else {\r | |
45 | return Str;\r | |
46 | }\r | |
47 | }\r | |
48 | \r | |
49 | BOOLEAN\r | |
50 | BdsIsRemovableUsb (\r | |
51 | IN EFI_DEVICE_PATH* DevicePath\r | |
52 | )\r | |
53 | {\r | |
54 | return ((DevicePathType (DevicePath) == MESSAGING_DEVICE_PATH) &&\r | |
55 | ((DevicePathSubType (DevicePath) == MSG_USB_CLASS_DP) ||\r | |
56 | (DevicePathSubType (DevicePath) == MSG_USB_WWID_DP)));\r | |
57 | }\r | |
58 | \r | |
59 | EFI_STATUS\r | |
60 | BdsGetDeviceUsb (\r | |
61 | IN EFI_DEVICE_PATH* RemovableDevicePath,\r | |
62 | OUT EFI_HANDLE* DeviceHandle,\r | |
63 | OUT EFI_DEVICE_PATH** NewDevicePath\r | |
64 | )\r | |
65 | {\r | |
66 | EFI_STATUS Status;\r | |
67 | UINTN Index;\r | |
68 | UINTN UsbIoHandleCount;\r | |
69 | EFI_HANDLE *UsbIoBuffer;\r | |
70 | EFI_DEVICE_PATH* UsbIoDevicePath;\r | |
71 | EFI_DEVICE_PATH* TmpDevicePath;\r | |
72 | USB_WWID_DEVICE_PATH* WwidDevicePath1;\r | |
73 | USB_WWID_DEVICE_PATH* WwidDevicePath2;\r | |
74 | USB_CLASS_DEVICE_PATH* UsbClassDevicePath1;\r | |
75 | USB_CLASS_DEVICE_PATH* UsbClassDevicePath2;\r | |
76 | \r | |
77 | // Get all the UsbIo handles\r | |
78 | UsbIoHandleCount = 0;\r | |
79 | Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiUsbIoProtocolGuid, NULL, &UsbIoHandleCount, &UsbIoBuffer);\r | |
6f711615 | 80 | if (EFI_ERROR (Status) || (UsbIoHandleCount == 0)) {\r |
1e57a462 | 81 | return Status;\r |
82 | }\r | |
83 | \r | |
84 | // Check if one of the handles matches the USB description\r | |
85 | for (Index = 0; Index < UsbIoHandleCount; Index++) {\r | |
86 | Status = gBS->HandleProtocol (UsbIoBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID **) &UsbIoDevicePath);\r | |
6f711615 | 87 | if (!EFI_ERROR (Status)) {\r |
1e57a462 | 88 | TmpDevicePath = UsbIoDevicePath;\r |
89 | while (!IsDevicePathEnd (TmpDevicePath)) {\r | |
90 | // Check if the Device Path node is a USB Removable device Path node\r | |
91 | if (BdsIsRemovableUsb (TmpDevicePath)) {\r | |
92 | if (TmpDevicePath->SubType == MSG_USB_WWID_DP) {\r | |
93 | WwidDevicePath1 = (USB_WWID_DEVICE_PATH*)RemovableDevicePath;\r | |
94 | WwidDevicePath2 = (USB_WWID_DEVICE_PATH*)TmpDevicePath;\r | |
95 | if ((WwidDevicePath1->VendorId == WwidDevicePath2->VendorId) &&\r | |
96 | (WwidDevicePath1->ProductId == WwidDevicePath2->ProductId) &&\r | |
6f711615 | 97 | (CompareMem (WwidDevicePath1+1, WwidDevicePath2+1, DevicePathNodeLength(WwidDevicePath1)-sizeof (USB_WWID_DEVICE_PATH)) == 0))\r |
1e57a462 | 98 | {\r |
99 | *DeviceHandle = UsbIoBuffer[Index];\r | |
100 | // Add the additional original Device Path Nodes (eg: FilePath Device Path Node) to the new Device Path\r | |
6f711615 | 101 | *NewDevicePath = AppendDevicePath (UsbIoDevicePath, NextDevicePathNode (RemovableDevicePath));\r |
1e57a462 | 102 | return EFI_SUCCESS;\r |
103 | }\r | |
104 | } else {\r | |
105 | UsbClassDevicePath1 = (USB_CLASS_DEVICE_PATH*)RemovableDevicePath;\r | |
106 | UsbClassDevicePath2 = (USB_CLASS_DEVICE_PATH*)TmpDevicePath;\r | |
107 | if ((UsbClassDevicePath1->VendorId != 0xFFFF) && (UsbClassDevicePath1->VendorId == UsbClassDevicePath2->VendorId) &&\r | |
108 | (UsbClassDevicePath1->ProductId != 0xFFFF) && (UsbClassDevicePath1->ProductId == UsbClassDevicePath2->ProductId) &&\r | |
109 | (UsbClassDevicePath1->DeviceClass != 0xFF) && (UsbClassDevicePath1->DeviceClass == UsbClassDevicePath2->DeviceClass) &&\r | |
110 | (UsbClassDevicePath1->DeviceSubClass != 0xFF) && (UsbClassDevicePath1->DeviceSubClass == UsbClassDevicePath2->DeviceSubClass) &&\r | |
111 | (UsbClassDevicePath1->DeviceProtocol != 0xFF) && (UsbClassDevicePath1->DeviceProtocol == UsbClassDevicePath2->DeviceProtocol))\r | |
112 | {\r | |
113 | *DeviceHandle = UsbIoBuffer[Index];\r | |
114 | // Add the additional original Device Path Nodes (eg: FilePath Device Path Node) to the new Device Path\r | |
6f711615 | 115 | *NewDevicePath = AppendDevicePath (UsbIoDevicePath, NextDevicePathNode (RemovableDevicePath));\r |
1e57a462 | 116 | return EFI_SUCCESS;\r |
117 | }\r | |
118 | }\r | |
119 | }\r | |
120 | TmpDevicePath = NextDevicePathNode (TmpDevicePath);\r | |
121 | }\r | |
122 | \r | |
123 | }\r | |
124 | }\r | |
125 | \r | |
126 | return EFI_NOT_FOUND;\r | |
127 | }\r | |
128 | \r | |
129 | BOOLEAN\r | |
130 | BdsIsRemovableHd (\r | |
131 | IN EFI_DEVICE_PATH* DevicePath\r | |
132 | )\r | |
133 | {\r | |
6f711615 | 134 | return IS_DEVICE_PATH_NODE (DevicePath, MEDIA_DEVICE_PATH, MEDIA_HARDDRIVE_DP);\r |
1e57a462 | 135 | }\r |
136 | \r | |
137 | EFI_STATUS\r | |
138 | BdsGetDeviceHd (\r | |
139 | IN EFI_DEVICE_PATH* RemovableDevicePath,\r | |
140 | OUT EFI_HANDLE* DeviceHandle,\r | |
141 | OUT EFI_DEVICE_PATH** NewDevicePath\r | |
142 | )\r | |
143 | {\r | |
144 | EFI_STATUS Status;\r | |
145 | UINTN Index;\r | |
146 | UINTN PartitionHandleCount;\r | |
147 | EFI_HANDLE *PartitionBuffer;\r | |
148 | EFI_DEVICE_PATH* PartitionDevicePath;\r | |
149 | EFI_DEVICE_PATH* TmpDevicePath;\r | |
150 | HARDDRIVE_DEVICE_PATH* HardDriveDevicePath1;\r | |
151 | HARDDRIVE_DEVICE_PATH* HardDriveDevicePath2;\r | |
152 | \r | |
153 | // Get all the DiskIo handles\r | |
154 | PartitionHandleCount = 0;\r | |
155 | Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiDiskIoProtocolGuid, NULL, &PartitionHandleCount, &PartitionBuffer);\r | |
6f711615 | 156 | if (EFI_ERROR (Status) || (PartitionHandleCount == 0)) {\r |
1e57a462 | 157 | return Status;\r |
158 | }\r | |
159 | \r | |
160 | // Check if one of the handles matches the Hard Disk Description\r | |
161 | for (Index = 0; Index < PartitionHandleCount; Index++) {\r | |
162 | Status = gBS->HandleProtocol (PartitionBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID **) &PartitionDevicePath);\r | |
6f711615 | 163 | if (!EFI_ERROR (Status)) {\r |
1e57a462 | 164 | TmpDevicePath = PartitionDevicePath;\r |
165 | while (!IsDevicePathEnd (TmpDevicePath)) {\r | |
166 | // Check if the Device Path node is a HD Removable device Path node\r | |
167 | if (BdsIsRemovableHd (TmpDevicePath)) {\r | |
168 | HardDriveDevicePath1 = (HARDDRIVE_DEVICE_PATH*)RemovableDevicePath;\r | |
169 | HardDriveDevicePath2 = (HARDDRIVE_DEVICE_PATH*)TmpDevicePath;\r | |
170 | if ((HardDriveDevicePath1->SignatureType == HardDriveDevicePath2->SignatureType) &&\r | |
6f711615 | 171 | (CompareGuid ((EFI_GUID *)HardDriveDevicePath1->Signature, (EFI_GUID *)HardDriveDevicePath2->Signature) == TRUE) &&\r |
1e57a462 | 172 | (HardDriveDevicePath1->PartitionNumber == HardDriveDevicePath2->PartitionNumber))\r |
173 | {\r | |
174 | *DeviceHandle = PartitionBuffer[Index];\r | |
175 | // Add the additional original Device Path Nodes (eg: FilePath Device Path Node) to the new Device Path\r | |
6f711615 | 176 | *NewDevicePath = AppendDevicePath (PartitionDevicePath, NextDevicePathNode (RemovableDevicePath));\r |
1e57a462 | 177 | return EFI_SUCCESS;\r |
178 | }\r | |
179 | }\r | |
180 | TmpDevicePath = NextDevicePathNode (TmpDevicePath);\r | |
181 | }\r | |
182 | \r | |
183 | }\r | |
184 | }\r | |
185 | \r | |
186 | return EFI_NOT_FOUND;\r | |
187 | }\r | |
188 | \r | |
189 | /*BOOLEAN\r | |
190 | BdsIsRemovableCdrom (\r | |
191 | IN EFI_DEVICE_PATH* DevicePath\r | |
192 | )\r | |
193 | {\r | |
6f711615 | 194 | return IS_DEVICE_PATH_NODE (DevicePath, MEDIA_DEVICE_PATH, MEDIA_CDROM_DP);\r |
1e57a462 | 195 | }\r |
196 | \r | |
197 | EFI_STATUS\r | |
198 | BdsGetDeviceCdrom (\r | |
199 | IN EFI_DEVICE_PATH* RemovableDevicePath,\r | |
200 | OUT EFI_HANDLE* DeviceHandle,\r | |
201 | OUT EFI_DEVICE_PATH** DevicePath\r | |
202 | )\r | |
203 | {\r | |
204 | ASSERT(0);\r | |
205 | return EFI_UNSUPPORTED;\r | |
206 | }*/\r | |
207 | \r | |
208 | typedef BOOLEAN\r | |
209 | (*BDS_IS_REMOVABLE) (\r | |
210 | IN EFI_DEVICE_PATH* DevicePath\r | |
211 | );\r | |
212 | \r | |
213 | typedef EFI_STATUS\r | |
214 | (*BDS_GET_DEVICE) (\r | |
215 | IN EFI_DEVICE_PATH* RemovableDevicePath,\r | |
216 | OUT EFI_HANDLE* DeviceHandle,\r | |
217 | OUT EFI_DEVICE_PATH** DevicePath\r | |
218 | );\r | |
219 | \r | |
220 | typedef struct {\r | |
221 | BDS_IS_REMOVABLE IsRemovable;\r | |
222 | BDS_GET_DEVICE GetDevice;\r | |
223 | } BDS_REMOVABLE_DEVICE_SUPPORT;\r | |
224 | \r | |
225 | BDS_REMOVABLE_DEVICE_SUPPORT RemovableDeviceSupport[] = {\r | |
226 | { BdsIsRemovableUsb, BdsGetDeviceUsb },\r | |
227 | { BdsIsRemovableHd, BdsGetDeviceHd },\r | |
228 | //{ BdsIsRemovableCdrom, BdsGetDeviceCdrom }\r | |
229 | };\r | |
230 | \r | |
231 | STATIC\r | |
232 | BOOLEAN\r | |
233 | IsRemovableDevice (\r | |
234 | IN EFI_DEVICE_PATH* DevicePath\r | |
235 | )\r | |
236 | {\r | |
237 | UINTN Index;\r | |
238 | EFI_DEVICE_PATH* TmpDevicePath;\r | |
239 | \r | |
240 | TmpDevicePath = DevicePath;\r | |
241 | while (!IsDevicePathEnd (TmpDevicePath)) {\r | |
6f711615 | 242 | for (Index = 0; Index < sizeof (RemovableDeviceSupport) / sizeof (BDS_REMOVABLE_DEVICE_SUPPORT); Index++) {\r |
243 | if (RemovableDeviceSupport[Index].IsRemovable (TmpDevicePath)) {\r | |
1e57a462 | 244 | return TRUE;\r |
245 | }\r | |
246 | }\r | |
247 | TmpDevicePath = NextDevicePathNode (TmpDevicePath);\r | |
248 | }\r | |
249 | \r | |
250 | return FALSE;\r | |
251 | }\r | |
252 | \r | |
253 | STATIC\r | |
254 | EFI_STATUS\r | |
255 | TryRemovableDevice (\r | |
256 | IN EFI_DEVICE_PATH* DevicePath,\r | |
257 | OUT EFI_HANDLE* DeviceHandle,\r | |
258 | OUT EFI_DEVICE_PATH** NewDevicePath\r | |
259 | )\r | |
260 | {\r | |
261 | EFI_STATUS Status;\r | |
262 | UINTN Index;\r | |
263 | EFI_DEVICE_PATH* TmpDevicePath;\r | |
264 | BDS_REMOVABLE_DEVICE_SUPPORT* RemovableDevice;\r | |
265 | EFI_DEVICE_PATH* RemovableDevicePath;\r | |
266 | BOOLEAN RemovableFound;\r | |
267 | \r | |
268 | RemovableDevice = NULL;\r | |
269 | RemovableDevicePath = NULL;\r | |
270 | RemovableFound = FALSE;\r | |
271 | TmpDevicePath = DevicePath;\r | |
272 | \r | |
273 | while (!IsDevicePathEnd (TmpDevicePath) && !RemovableFound) {\r | |
6f711615 | 274 | for (Index = 0; Index < sizeof (RemovableDeviceSupport) / sizeof (BDS_REMOVABLE_DEVICE_SUPPORT); Index++) {\r |
1e57a462 | 275 | RemovableDevice = &RemovableDeviceSupport[Index];\r |
6f711615 | 276 | if (RemovableDevice->IsRemovable (TmpDevicePath)) {\r |
1e57a462 | 277 | RemovableDevicePath = TmpDevicePath;\r |
278 | RemovableFound = TRUE;\r | |
279 | break;\r | |
280 | }\r | |
281 | }\r | |
282 | TmpDevicePath = NextDevicePathNode (TmpDevicePath);\r | |
283 | }\r | |
284 | \r | |
285 | if (!RemovableFound) {\r | |
286 | return EFI_NOT_FOUND;\r | |
287 | }\r | |
288 | \r | |
289 | // Search into the current started drivers\r | |
290 | Status = RemovableDevice->GetDevice (RemovableDevicePath, DeviceHandle, NewDevicePath);\r | |
291 | if (Status == EFI_NOT_FOUND) {\r | |
292 | // Connect all the drivers\r | |
293 | BdsConnectAllDrivers ();\r | |
294 | \r | |
295 | // Search again into all the drivers\r | |
296 | Status = RemovableDevice->GetDevice (RemovableDevicePath, DeviceHandle, NewDevicePath);\r | |
297 | }\r | |
298 | \r | |
299 | return Status;\r | |
300 | }\r | |
301 | \r | |
302 | /**\r | |
303 | Connect a Device Path and return the handle of the driver that support this DevicePath\r | |
304 | \r | |
305 | @param DevicePath Device Path of the File to connect\r | |
306 | @param Handle Handle of the driver that support this DevicePath\r | |
307 | @param RemainingDevicePath Remaining DevicePath nodes that do not match the driver DevicePath\r | |
308 | \r | |
309 | @retval EFI_SUCCESS A driver that matches the Device Path has been found\r | |
310 | @retval EFI_NOT_FOUND No handles match the search.\r | |
311 | @retval EFI_INVALID_PARAMETER DevicePath or Handle is NULL\r | |
312 | \r | |
313 | **/\r | |
314 | EFI_STATUS\r | |
315 | BdsConnectDevicePath (\r | |
316 | IN EFI_DEVICE_PATH_PROTOCOL* DevicePath,\r | |
317 | OUT EFI_HANDLE *Handle,\r | |
318 | OUT EFI_DEVICE_PATH_PROTOCOL **RemainingDevicePath\r | |
319 | )\r | |
320 | {\r | |
321 | EFI_DEVICE_PATH* Remaining;\r | |
322 | EFI_DEVICE_PATH* NewDevicePath;\r | |
323 | EFI_STATUS Status;\r | |
324 | \r | |
325 | if ((DevicePath == NULL) || (Handle == NULL)) {\r | |
326 | return EFI_INVALID_PARAMETER;\r | |
327 | }\r | |
328 | \r | |
329 | do {\r | |
330 | Remaining = DevicePath;\r | |
331 | // The LocateDevicePath() function locates all devices on DevicePath that support Protocol and returns\r | |
332 | // the handle to the device that is closest to DevicePath. On output, the device path pointer is modified\r | |
333 | // to point to the remaining part of the device path\r | |
334 | Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &Remaining, Handle);\r | |
335 | if (!EFI_ERROR (Status)) {\r | |
336 | // Recursive = FALSE: We do not want to start all the device tree\r | |
337 | Status = gBS->ConnectController (*Handle, NULL, Remaining, FALSE);\r | |
338 | }\r | |
339 | \r | |
340 | /*// We need to check if RemainingDevicePath does not point on the last node. Otherwise, calling\r | |
6f711615 | 341 | // NextDevicePathNode () will return an undetermined Device Path Node\r |
1e57a462 | 342 | if (!IsDevicePathEnd (RemainingDevicePath)) {\r |
343 | RemainingDevicePath = NextDevicePathNode (RemainingDevicePath);\r | |
344 | }*/\r | |
345 | } while (!EFI_ERROR (Status) && !IsDevicePathEnd (Remaining));\r | |
346 | \r | |
347 | if (!EFI_ERROR (Status)) {\r | |
348 | // Now, we have got the whole Device Path connected, call again ConnectController to ensure all the supported Driver\r | |
349 | // Binding Protocol are connected (such as DiskIo and SimpleFileSystem)\r | |
350 | Remaining = DevicePath;\r | |
6f711615 | 351 | Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &Remaining, Handle);\r |
1e57a462 | 352 | if (!EFI_ERROR (Status)) {\r |
353 | Status = gBS->ConnectController (*Handle, NULL, Remaining, FALSE);\r | |
354 | if (EFI_ERROR (Status)) {\r | |
355 | // If the last node is a Memory Map Device Path just return EFI_SUCCESS.\r | |
356 | if ((Remaining->Type == HARDWARE_DEVICE_PATH) && (Remaining->SubType == HW_MEMMAP_DP)) {\r | |
357 | Status = EFI_SUCCESS;\r | |
358 | }\r | |
359 | }\r | |
360 | }\r | |
361 | } else if (!IsDevicePathEnd (Remaining) && !IsRemovableDevice (Remaining)) {\r | |
362 | \r | |
363 | /*// If the remaining Device Path is a FilePath or MemoryMap then we consider the Device Path has been loaded correctly\r | |
364 | if ((Remaining->Type == MEDIA_DEVICE_PATH) && (Remaining->SubType == MEDIA_FILEPATH_DP)) {\r | |
365 | Status = EFI_SUCCESS;\r | |
366 | } else if ((Remaining->Type == HARDWARE_DEVICE_PATH) && (Remaining->SubType == HW_MEMMAP_DP)) {\r | |
367 | Status = EFI_SUCCESS;\r | |
368 | }*/\r | |
369 | \r | |
370 | //TODO: Should we just return success and leave the caller decide if it is the expected RemainingPath\r | |
371 | Status = EFI_SUCCESS;\r | |
372 | } else {\r | |
373 | Status = TryRemovableDevice (DevicePath, Handle, &NewDevicePath);\r | |
374 | if (!EFI_ERROR (Status)) {\r | |
375 | return BdsConnectDevicePath (NewDevicePath, Handle, RemainingDevicePath);\r | |
376 | }\r | |
377 | }\r | |
378 | \r | |
379 | if (RemainingDevicePath) {\r | |
380 | *RemainingDevicePath = Remaining;\r | |
381 | }\r | |
382 | \r | |
383 | return Status;\r | |
384 | }\r | |
385 | \r | |
386 | BOOLEAN\r | |
387 | BdsFileSystemSupport (\r | |
388 | IN EFI_DEVICE_PATH *DevicePath,\r | |
389 | IN EFI_HANDLE Handle,\r | |
390 | IN EFI_DEVICE_PATH *RemainingDevicePath\r | |
391 | )\r | |
392 | {\r | |
393 | EFI_STATUS Status;\r | |
394 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *FsProtocol;\r | |
395 | \r | |
6f711615 | 396 | Status = gBS->HandleProtocol (Handle, &gEfiSimpleFileSystemProtocolGuid, (VOID **)&FsProtocol);\r |
1e57a462 | 397 | \r |
6f711615 | 398 | return (!EFI_ERROR (Status) && IS_DEVICE_PATH_NODE (RemainingDevicePath, MEDIA_DEVICE_PATH, MEDIA_FILEPATH_DP));\r |
1e57a462 | 399 | }\r |
400 | \r | |
401 | EFI_STATUS\r | |
402 | BdsFileSystemLoadImage (\r | |
403 | IN EFI_DEVICE_PATH *DevicePath,\r | |
404 | IN EFI_HANDLE Handle,\r | |
405 | IN EFI_DEVICE_PATH *RemainingDevicePath,\r | |
406 | IN EFI_ALLOCATE_TYPE Type,\r | |
407 | IN OUT EFI_PHYSICAL_ADDRESS* Image,\r | |
408 | OUT UINTN *ImageSize\r | |
409 | )\r | |
410 | {\r | |
411 | FILEPATH_DEVICE_PATH* FilePathDevicePath;\r | |
412 | EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *FsProtocol;\r | |
413 | EFI_FILE_PROTOCOL *Fs;\r | |
414 | EFI_STATUS Status;\r | |
415 | EFI_FILE_INFO *FileInfo;\r | |
416 | EFI_FILE_PROTOCOL *File;\r | |
417 | UINTN Size;\r | |
418 | \r | |
6f711615 | 419 | ASSERT (IS_DEVICE_PATH_NODE (RemainingDevicePath, MEDIA_DEVICE_PATH, MEDIA_FILEPATH_DP));\r |
1e57a462 | 420 | \r |
421 | FilePathDevicePath = (FILEPATH_DEVICE_PATH*)RemainingDevicePath;\r | |
422 | \r | |
6f711615 | 423 | Status = gBS->HandleProtocol (Handle, &gEfiSimpleFileSystemProtocolGuid, (VOID **)&FsProtocol);\r |
424 | if (EFI_ERROR (Status)) {\r | |
1e57a462 | 425 | return Status;\r |
426 | }\r | |
427 | \r | |
428 | // Try to Open the volume and get root directory\r | |
429 | Status = FsProtocol->OpenVolume (FsProtocol, &Fs);\r | |
6f711615 | 430 | if (EFI_ERROR (Status)) {\r |
1e57a462 | 431 | return Status;\r |
432 | }\r | |
433 | \r | |
434 | File = NULL;\r | |
6f711615 | 435 | Status = Fs->Open (Fs, &File, FilePathDevicePath->PathName, EFI_FILE_MODE_READ, 0);\r |
436 | if (EFI_ERROR (Status)) {\r | |
1e57a462 | 437 | return Status;\r |
438 | }\r | |
439 | \r | |
440 | Size = 0;\r | |
6f711615 | 441 | File->GetInfo (File, &gEfiFileInfoGuid, &Size, NULL);\r |
1e57a462 | 442 | FileInfo = AllocatePool (Size);\r |
6f711615 | 443 | Status = File->GetInfo (File, &gEfiFileInfoGuid, &Size, FileInfo);\r |
444 | if (EFI_ERROR (Status)) {\r | |
1e57a462 | 445 | return Status;\r |
446 | }\r | |
447 | \r | |
448 | // Get the file size\r | |
449 | Size = FileInfo->FileSize;\r | |
450 | if (ImageSize) {\r | |
451 | *ImageSize = Size;\r | |
452 | }\r | |
6f711615 | 453 | FreePool (FileInfo);\r |
1e57a462 | 454 | \r |
455 | Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(Size), Image);\r | |
456 | // Try to allocate in any pages if failed to allocate memory at the defined location\r | |
457 | if ((Status == EFI_OUT_OF_RESOURCES) && (Type != AllocateAnyPages)) {\r | |
458 | Status = gBS->AllocatePages (AllocateAnyPages, EfiBootServicesCode, EFI_SIZE_TO_PAGES(Size), Image);\r | |
459 | }\r | |
6f711615 | 460 | if (!EFI_ERROR (Status)) {\r |
1e57a462 | 461 | Status = File->Read (File, &Size, (VOID*)(UINTN)(*Image));\r |
462 | }\r | |
463 | \r | |
464 | return Status;\r | |
465 | }\r | |
466 | \r | |
467 | BOOLEAN\r | |
468 | BdsMemoryMapSupport (\r | |
469 | IN EFI_DEVICE_PATH *DevicePath,\r | |
470 | IN EFI_HANDLE Handle,\r | |
471 | IN EFI_DEVICE_PATH *RemainingDevicePath\r | |
472 | )\r | |
473 | {\r | |
6f711615 | 474 | return IS_DEVICE_PATH_NODE (DevicePath, HARDWARE_DEVICE_PATH, HW_MEMMAP_DP) ||\r |
475 | IS_DEVICE_PATH_NODE (RemainingDevicePath, HARDWARE_DEVICE_PATH, HW_MEMMAP_DP);\r | |
1e57a462 | 476 | }\r |
477 | \r | |
478 | EFI_STATUS\r | |
479 | BdsMemoryMapLoadImage (\r | |
480 | IN EFI_DEVICE_PATH *DevicePath,\r | |
481 | IN EFI_HANDLE Handle,\r | |
482 | IN EFI_DEVICE_PATH *RemainingDevicePath,\r | |
483 | IN EFI_ALLOCATE_TYPE Type,\r | |
484 | IN OUT EFI_PHYSICAL_ADDRESS* Image,\r | |
485 | OUT UINTN *ImageSize\r | |
486 | )\r | |
487 | {\r | |
488 | EFI_STATUS Status;\r | |
489 | MEMMAP_DEVICE_PATH* MemMapPathDevicePath;\r | |
490 | UINTN Size;\r | |
491 | \r | |
6f711615 | 492 | if (IS_DEVICE_PATH_NODE (RemainingDevicePath, HARDWARE_DEVICE_PATH, HW_MEMMAP_DP)) {\r |
1e57a462 | 493 | MemMapPathDevicePath = (MEMMAP_DEVICE_PATH*)RemainingDevicePath;\r |
494 | } else {\r | |
6f711615 | 495 | ASSERT (IS_DEVICE_PATH_NODE (DevicePath, HARDWARE_DEVICE_PATH, HW_MEMMAP_DP));\r |
1e57a462 | 496 | MemMapPathDevicePath = (MEMMAP_DEVICE_PATH*)DevicePath;\r |
497 | }\r | |
498 | \r | |
499 | Size = MemMapPathDevicePath->EndingAddress - MemMapPathDevicePath->StartingAddress;\r | |
500 | if (Size == 0) {\r | |
501 | return EFI_INVALID_PARAMETER;\r | |
502 | }\r | |
503 | \r | |
504 | Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(Size), Image);\r | |
505 | // Try to allocate in any pages if failed to allocate memory at the defined location\r | |
506 | if ((Status == EFI_OUT_OF_RESOURCES) && (Type != AllocateAnyPages)) {\r | |
507 | Status = gBS->AllocatePages (AllocateAnyPages, EfiBootServicesCode, EFI_SIZE_TO_PAGES(Size), Image);\r | |
508 | }\r | |
6f711615 | 509 | if (!EFI_ERROR (Status)) {\r |
1e57a462 | 510 | CopyMem ((VOID*)(UINTN)(*Image), (CONST VOID*)(UINTN)MemMapPathDevicePath->StartingAddress, Size);\r |
511 | \r | |
512 | if (ImageSize != NULL) {\r | |
513 | *ImageSize = Size;\r | |
514 | }\r | |
515 | }\r | |
516 | \r | |
517 | return Status;\r | |
518 | }\r | |
519 | \r | |
520 | BOOLEAN\r | |
521 | BdsFirmwareVolumeSupport (\r | |
522 | IN EFI_DEVICE_PATH *DevicePath,\r | |
523 | IN EFI_HANDLE Handle,\r | |
524 | IN EFI_DEVICE_PATH *RemainingDevicePath\r | |
525 | )\r | |
526 | {\r | |
6f711615 | 527 | return IS_DEVICE_PATH_NODE (RemainingDevicePath, MEDIA_DEVICE_PATH, MEDIA_PIWG_FW_FILE_DP);\r |
1e57a462 | 528 | }\r |
529 | \r | |
530 | EFI_STATUS\r | |
531 | BdsFirmwareVolumeLoadImage (\r | |
532 | IN EFI_DEVICE_PATH *DevicePath,\r | |
533 | IN EFI_HANDLE Handle,\r | |
534 | IN EFI_DEVICE_PATH *RemainingDevicePath,\r | |
535 | IN EFI_ALLOCATE_TYPE Type,\r | |
536 | IN OUT EFI_PHYSICAL_ADDRESS* Image,\r | |
537 | OUT UINTN *ImageSize\r | |
538 | )\r | |
539 | {\r | |
540 | EFI_STATUS Status;\r | |
541 | EFI_FIRMWARE_VOLUME2_PROTOCOL *FwVol;\r | |
542 | EFI_GUID *FvNameGuid;\r | |
543 | EFI_SECTION_TYPE SectionType;\r | |
544 | EFI_FV_FILETYPE FvType;\r | |
545 | EFI_FV_FILE_ATTRIBUTES Attrib;\r | |
546 | UINT32 AuthenticationStatus;\r | |
547 | VOID* ImageBuffer;\r | |
548 | \r | |
6f711615 | 549 | ASSERT (IS_DEVICE_PATH_NODE (RemainingDevicePath, MEDIA_DEVICE_PATH, MEDIA_PIWG_FW_FILE_DP));\r |
1e57a462 | 550 | \r |
6f711615 | 551 | Status = gBS->HandleProtocol (Handle, &gEfiFirmwareVolume2ProtocolGuid, (VOID **)&FwVol);\r |
552 | if (EFI_ERROR (Status)) {\r | |
1e57a462 | 553 | return Status;\r |
554 | }\r | |
555 | \r | |
556 | FvNameGuid = EfiGetNameGuidFromFwVolDevicePathNode ((CONST MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *)RemainingDevicePath);\r | |
557 | if (FvNameGuid == NULL) {\r | |
558 | Status = EFI_INVALID_PARAMETER;\r | |
559 | }\r | |
560 | \r | |
561 | SectionType = EFI_SECTION_PE32;\r | |
562 | AuthenticationStatus = 0;\r | |
563 | //Note: ReadSection at the opposite of ReadFile does not allow to pass ImageBuffer == NULL to get the size of the file.\r | |
564 | ImageBuffer = NULL;\r | |
565 | Status = FwVol->ReadSection (\r | |
566 | FwVol,\r | |
567 | FvNameGuid,\r | |
568 | SectionType,\r | |
569 | 0,\r | |
570 | &ImageBuffer,\r | |
571 | ImageSize,\r | |
572 | &AuthenticationStatus\r | |
573 | );\r | |
574 | if (!EFI_ERROR (Status)) {\r | |
575 | #if 0\r | |
576 | // In case the buffer has some address requirements, we must copy the buffer to a buffer following the requirements\r | |
577 | if (Type != AllocateAnyPages) {\r | |
578 | Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(*ImageSize),Image);\r | |
6f711615 | 579 | if (!EFI_ERROR (Status)) {\r |
1e57a462 | 580 | CopyMem ((VOID*)(UINTN)(*Image), ImageBuffer, *ImageSize);\r |
581 | FreePool (ImageBuffer);\r | |
582 | }\r | |
583 | }\r | |
584 | #else\r | |
585 | // We must copy the buffer into a page allocations. Otherwise, the caller could call gBS->FreePages() on the pool allocation\r | |
586 | Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(*ImageSize), Image);\r | |
587 | // Try to allocate in any pages if failed to allocate memory at the defined location\r | |
588 | if ((Status == EFI_OUT_OF_RESOURCES) && (Type != AllocateAnyPages)) {\r | |
589 | Status = gBS->AllocatePages (AllocateAnyPages, EfiBootServicesCode, EFI_SIZE_TO_PAGES(*ImageSize), Image);\r | |
590 | }\r | |
6f711615 | 591 | if (!EFI_ERROR (Status)) {\r |
1e57a462 | 592 | CopyMem ((VOID*)(UINTN)(*Image), ImageBuffer, *ImageSize);\r |
593 | FreePool (ImageBuffer);\r | |
594 | }\r | |
595 | #endif\r | |
596 | } else {\r | |
597 | // Try a raw file, since a PE32 SECTION does not exist\r | |
598 | Status = FwVol->ReadFile (\r | |
599 | FwVol,\r | |
600 | FvNameGuid,\r | |
601 | NULL,\r | |
602 | ImageSize,\r | |
603 | &FvType,\r | |
604 | &Attrib,\r | |
605 | &AuthenticationStatus\r | |
606 | );\r | |
6f711615 | 607 | if (!EFI_ERROR (Status)) {\r |
1e57a462 | 608 | Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(*ImageSize), Image);\r |
609 | // Try to allocate in any pages if failed to allocate memory at the defined location\r | |
610 | if ((Status == EFI_OUT_OF_RESOURCES) && (Type != AllocateAnyPages)) {\r | |
611 | Status = gBS->AllocatePages (AllocateAnyPages, EfiBootServicesCode, EFI_SIZE_TO_PAGES(*ImageSize), Image);\r | |
612 | }\r | |
6f711615 | 613 | if (!EFI_ERROR (Status)) {\r |
1e57a462 | 614 | Status = FwVol->ReadFile (\r |
615 | FwVol,\r | |
616 | FvNameGuid,\r | |
617 | (VOID*)(UINTN)(*Image),\r | |
618 | ImageSize,\r | |
619 | &FvType,\r | |
620 | &Attrib,\r | |
621 | &AuthenticationStatus\r | |
622 | );\r | |
623 | }\r | |
624 | }\r | |
625 | }\r | |
626 | return Status;\r | |
627 | }\r | |
628 | \r | |
629 | BOOLEAN\r | |
630 | BdsPxeSupport (\r | |
631 | IN EFI_DEVICE_PATH* DevicePath,\r | |
632 | IN EFI_HANDLE Handle,\r | |
633 | IN EFI_DEVICE_PATH* RemainingDevicePath\r | |
634 | )\r | |
635 | {\r | |
636 | EFI_STATUS Status;\r | |
637 | EFI_PXE_BASE_CODE_PROTOCOL* PxeBcProtocol;\r | |
638 | \r | |
6f711615 | 639 | if (!IsDevicePathEnd (RemainingDevicePath)) {\r |
1e57a462 | 640 | return FALSE;\r |
641 | }\r | |
642 | \r | |
643 | Status = gBS->HandleProtocol (Handle, &gEfiPxeBaseCodeProtocolGuid, (VOID **)&PxeBcProtocol);\r | |
644 | if (EFI_ERROR (Status)) {\r | |
645 | return FALSE;\r | |
646 | } else {\r | |
647 | return TRUE;\r | |
648 | }\r | |
649 | }\r | |
650 | \r | |
651 | EFI_STATUS\r | |
652 | BdsPxeLoadImage (\r | |
653 | IN EFI_DEVICE_PATH* DevicePath,\r | |
654 | IN EFI_HANDLE Handle,\r | |
655 | IN EFI_DEVICE_PATH* RemainingDevicePath,\r | |
656 | IN EFI_ALLOCATE_TYPE Type,\r | |
657 | IN OUT EFI_PHYSICAL_ADDRESS *Image,\r | |
658 | OUT UINTN *ImageSize\r | |
659 | )\r | |
660 | {\r | |
661 | EFI_STATUS Status;\r | |
662 | EFI_LOAD_FILE_PROTOCOL *LoadFileProtocol;\r | |
663 | UINTN BufferSize;\r | |
664 | \r | |
665 | // Get Load File Protocol attached to the PXE protocol\r | |
666 | Status = gBS->HandleProtocol (Handle, &gEfiLoadFileProtocolGuid, (VOID **)&LoadFileProtocol);\r | |
667 | if (EFI_ERROR (Status)) {\r | |
668 | return Status;\r | |
669 | }\r | |
670 | \r | |
671 | Status = LoadFileProtocol->LoadFile (LoadFileProtocol, DevicePath, TRUE, &BufferSize, NULL);\r | |
672 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
673 | Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(BufferSize), Image);\r | |
6f711615 | 674 | if (EFI_ERROR (Status)) {\r |
1e57a462 | 675 | return Status;\r |
676 | }\r | |
677 | \r | |
678 | Status = LoadFileProtocol->LoadFile (LoadFileProtocol, DevicePath, TRUE, &BufferSize, (VOID*)(UINTN)(*Image));\r | |
6f711615 | 679 | if (!EFI_ERROR (Status) && (ImageSize != NULL)) {\r |
1e57a462 | 680 | *ImageSize = BufferSize;\r |
681 | }\r | |
682 | }\r | |
683 | \r | |
684 | return Status;\r | |
685 | }\r | |
686 | \r | |
687 | BOOLEAN\r | |
688 | BdsTftpSupport (\r | |
689 | IN EFI_DEVICE_PATH* DevicePath,\r | |
690 | IN EFI_HANDLE Handle,\r | |
691 | IN EFI_DEVICE_PATH* RemainingDevicePath\r | |
692 | )\r | |
693 | {\r | |
694 | EFI_STATUS Status;\r | |
695 | EFI_DEVICE_PATH *NextDevicePath;\r | |
696 | EFI_PXE_BASE_CODE_PROTOCOL *PxeBcProtocol;\r | |
697 | \r | |
698 | // Validate the Remaining Device Path\r | |
6f711615 | 699 | if (IsDevicePathEnd (RemainingDevicePath)) {\r |
1e57a462 | 700 | return FALSE;\r |
701 | }\r | |
6f711615 | 702 | if (!IS_DEVICE_PATH_NODE (RemainingDevicePath, MESSAGING_DEVICE_PATH, MSG_IPv4_DP) &&\r |
703 | !IS_DEVICE_PATH_NODE (RemainingDevicePath, MESSAGING_DEVICE_PATH, MSG_IPv6_DP)) {\r | |
1e57a462 | 704 | return FALSE;\r |
705 | }\r | |
706 | NextDevicePath = NextDevicePathNode (RemainingDevicePath);\r | |
6f711615 | 707 | if (IsDevicePathEnd (NextDevicePath)) {\r |
1e57a462 | 708 | return FALSE;\r |
709 | }\r | |
6f711615 | 710 | if (!IS_DEVICE_PATH_NODE (NextDevicePath, MEDIA_DEVICE_PATH, MEDIA_FILEPATH_DP)) {\r |
1e57a462 | 711 | return FALSE;\r |
712 | }\r | |
713 | \r | |
714 | Status = gBS->HandleProtocol (Handle, &gEfiPxeBaseCodeProtocolGuid, (VOID **)&PxeBcProtocol);\r | |
715 | if (EFI_ERROR (Status)) {\r | |
716 | return FALSE;\r | |
717 | } else {\r | |
718 | return TRUE;\r | |
719 | }\r | |
720 | }\r | |
721 | \r | |
722 | EFI_STATUS\r | |
723 | BdsTftpLoadImage (\r | |
724 | IN EFI_DEVICE_PATH* DevicePath,\r | |
725 | IN EFI_HANDLE Handle,\r | |
726 | IN EFI_DEVICE_PATH* RemainingDevicePath,\r | |
727 | IN EFI_ALLOCATE_TYPE Type,\r | |
728 | IN OUT EFI_PHYSICAL_ADDRESS *Image,\r | |
729 | OUT UINTN *ImageSize\r | |
730 | )\r | |
731 | {\r | |
732 | EFI_STATUS Status;\r | |
733 | EFI_PXE_BASE_CODE_PROTOCOL *Pxe;\r | |
734 | UINT64 TftpBufferSize;\r | |
735 | VOID* TftpBuffer;\r | |
736 | EFI_IP_ADDRESS ServerIp;\r | |
737 | IPv4_DEVICE_PATH* IPv4DevicePathNode;\r | |
738 | FILEPATH_DEVICE_PATH* FilePathDevicePath;\r | |
739 | EFI_IP_ADDRESS LocalIp;\r | |
740 | \r | |
6f711615 | 741 | ASSERT(IS_DEVICE_PATH_NODE (RemainingDevicePath, MESSAGING_DEVICE_PATH, MSG_IPv4_DP));\r |
1e57a462 | 742 | \r |
743 | IPv4DevicePathNode = (IPv4_DEVICE_PATH*)RemainingDevicePath;\r | |
744 | FilePathDevicePath = (FILEPATH_DEVICE_PATH*)(IPv4DevicePathNode + 1);\r | |
745 | \r | |
746 | Status = gBS->LocateProtocol (&gEfiPxeBaseCodeProtocolGuid, NULL, (VOID **)&Pxe);\r | |
6f711615 | 747 | if (EFI_ERROR (Status)) {\r |
1e57a462 | 748 | return Status;\r |
749 | }\r | |
750 | \r | |
751 | Status = Pxe->Start (Pxe, FALSE);\r | |
6f711615 | 752 | if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {\r |
1e57a462 | 753 | return Status;\r |
754 | }\r | |
755 | \r | |
756 | if (!IPv4DevicePathNode->StaticIpAddress) {\r | |
757 | Status = Pxe->Dhcp(Pxe, TRUE);\r | |
758 | } else {\r | |
759 | CopyMem (&LocalIp.v4, &IPv4DevicePathNode->LocalIpAddress, sizeof (EFI_IPv4_ADDRESS));\r | |
760 | Status = Pxe->SetStationIp (Pxe, &LocalIp, NULL);\r | |
761 | }\r | |
6f711615 | 762 | if (EFI_ERROR (Status)) {\r |
1e57a462 | 763 | return Status;\r |
764 | }\r | |
765 | \r | |
766 | CopyMem (&ServerIp.v4, &IPv4DevicePathNode->RemoteIpAddress, sizeof (EFI_IPv4_ADDRESS));\r | |
767 | \r | |
768 | Status = Pxe->Mtftp (\r | |
769 | Pxe,\r | |
770 | EFI_PXE_BASE_CODE_TFTP_GET_FILE_SIZE,\r | |
771 | NULL,\r | |
772 | FALSE,\r | |
773 | &TftpBufferSize,\r | |
774 | NULL,\r | |
775 | &ServerIp,\r | |
776 | (UINT8 *)FilePathDevicePath->PathName,\r | |
777 | NULL,\r | |
778 | TRUE\r | |
779 | );\r | |
6f711615 | 780 | if (EFI_ERROR (Status)) {\r |
1e57a462 | 781 | return Status;\r |
782 | }\r | |
783 | \r | |
784 | // Allocate a buffer to hold the whole file.\r | |
6f711615 | 785 | TftpBuffer = AllocatePool (TftpBufferSize);\r |
1e57a462 | 786 | if (TftpBuffer == NULL) {\r |
787 | return EFI_OUT_OF_RESOURCES;\r | |
788 | }\r | |
789 | \r | |
790 | Status = Pxe->Mtftp (\r | |
791 | Pxe,\r | |
792 | EFI_PXE_BASE_CODE_TFTP_READ_FILE,\r | |
793 | TftpBuffer,\r | |
794 | FALSE,\r | |
795 | &TftpBufferSize,\r | |
796 | NULL,\r | |
797 | &ServerIp,\r | |
798 | (UINT8 *)FilePathDevicePath->PathName,\r | |
799 | NULL,\r | |
800 | FALSE\r | |
801 | );\r | |
6f711615 | 802 | if (EFI_ERROR (Status)) {\r |
803 | FreePool (TftpBuffer);\r | |
1e57a462 | 804 | } else if (ImageSize != NULL) {\r |
805 | *ImageSize = (UINTN)TftpBufferSize;\r | |
806 | }\r | |
807 | \r | |
808 | return Status;\r | |
809 | }\r | |
810 | \r | |
811 | BDS_FILE_LOADER FileLoaders[] = {\r | |
812 | { BdsFileSystemSupport, BdsFileSystemLoadImage },\r | |
813 | { BdsFirmwareVolumeSupport, BdsFirmwareVolumeLoadImage },\r | |
814 | //{ BdsLoadFileSupport, BdsLoadFileLoadImage },\r | |
815 | { BdsMemoryMapSupport, BdsMemoryMapLoadImage },\r | |
816 | { BdsPxeSupport, BdsPxeLoadImage },\r | |
817 | { BdsTftpSupport, BdsTftpLoadImage },\r | |
818 | { NULL, NULL }\r | |
819 | };\r | |
820 | \r | |
821 | EFI_STATUS\r | |
822 | BdsLoadImage (\r | |
823 | IN EFI_DEVICE_PATH *DevicePath,\r | |
824 | IN EFI_ALLOCATE_TYPE Type,\r | |
825 | IN OUT EFI_PHYSICAL_ADDRESS* Image,\r | |
826 | OUT UINTN *FileSize\r | |
827 | )\r | |
828 | {\r | |
829 | EFI_STATUS Status;\r | |
830 | EFI_HANDLE Handle;\r | |
831 | EFI_DEVICE_PATH *RemainingDevicePath;\r | |
832 | BDS_FILE_LOADER* FileLoader;\r | |
833 | \r | |
834 | Status = BdsConnectDevicePath (DevicePath, &Handle, &RemainingDevicePath);\r | |
835 | if (EFI_ERROR (Status)) {\r | |
836 | return Status;\r | |
837 | }\r | |
838 | \r | |
839 | FileLoader = FileLoaders;\r | |
840 | while (FileLoader->Support != NULL) {\r | |
841 | if (FileLoader->Support (DevicePath, Handle, RemainingDevicePath)) {\r | |
842 | return FileLoader->LoadImage (DevicePath, Handle, RemainingDevicePath, Type, Image, FileSize);\r | |
843 | }\r | |
844 | FileLoader++;\r | |
845 | }\r | |
846 | \r | |
847 | return EFI_UNSUPPORTED;\r | |
848 | }\r | |
849 | \r | |
850 | /**\r | |
851 | Start an EFI Application from a Device Path\r | |
852 | \r | |
853 | @param ParentImageHandle Handle of the calling image\r | |
854 | @param DevicePath Location of the EFI Application\r | |
855 | \r | |
856 | @retval EFI_SUCCESS All drivers have been connected\r | |
857 | @retval EFI_NOT_FOUND The Linux kernel Device Path has not been found\r | |
858 | @retval EFI_OUT_OF_RESOURCES There is not enough resource memory to store the matching results.\r | |
859 | \r | |
860 | **/\r | |
861 | EFI_STATUS\r | |
862 | BdsStartEfiApplication (\r | |
863 | IN EFI_HANDLE ParentImageHandle,\r | |
864 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
865 | IN UINTN LoadOptionsSize,\r | |
866 | IN VOID* LoadOptions\r | |
867 | )\r | |
868 | {\r | |
869 | EFI_STATUS Status;\r | |
870 | EFI_HANDLE ImageHandle;\r | |
871 | EFI_PHYSICAL_ADDRESS BinaryBuffer;\r | |
872 | UINTN BinarySize;\r | |
873 | EFI_LOADED_IMAGE_PROTOCOL* LoadedImage;\r | |
874 | \r | |
875 | // Find the nearest supported file loader\r | |
876 | Status = BdsLoadImage (DevicePath, AllocateAnyPages, &BinaryBuffer, &BinarySize);\r | |
6f711615 | 877 | if (EFI_ERROR (Status)) {\r |
1e57a462 | 878 | return Status;\r |
879 | }\r | |
880 | \r | |
881 | // Load the image from the Buffer with Boot Services function\r | |
882 | Status = gBS->LoadImage (TRUE, ParentImageHandle, DevicePath, (VOID*)(UINTN)BinaryBuffer, BinarySize, &ImageHandle);\r | |
6f711615 | 883 | if (EFI_ERROR (Status)) {\r |
1e57a462 | 884 | return Status;\r |
885 | }\r | |
886 | \r | |
887 | // Passed LoadOptions to the EFI Application\r | |
888 | if (LoadOptionsSize != 0) {\r | |
889 | Status = gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **) &LoadedImage);\r | |
6f711615 | 890 | if (EFI_ERROR (Status)) {\r |
1e57a462 | 891 | return Status;\r |
892 | }\r | |
893 | \r | |
894 | LoadedImage->LoadOptionsSize = LoadOptionsSize;\r | |
895 | LoadedImage->LoadOptions = LoadOptions;\r | |
896 | }\r | |
897 | \r | |
898 | // Before calling the image, enable the Watchdog Timer for the 5 Minute period\r | |
899 | gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL);\r | |
900 | // Start the image\r | |
901 | Status = gBS->StartImage (ImageHandle, NULL, NULL);\r | |
902 | // Clear the Watchdog Timer after the image returns\r | |
903 | gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL);\r | |
904 | \r | |
905 | return Status;\r | |
906 | }\r |