]>
Commit | Line | Data |
---|---|---|
f6755908 OM |
1 | /** @file\r |
2 | \r | |
bd9a5182 | 3 | Copyright (c) 2013-2015, ARM Ltd. All rights reserved.<BR>\r |
f6755908 | 4 | \r |
878b807a | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
f6755908 OM |
6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include "AndroidFastbootApp.h"\r | |
10 | \r | |
11 | #include <Protocol/DevicePath.h>\r | |
fcf41edf | 12 | #include <Protocol/LoadedImage.h>\r |
f6755908 | 13 | \r |
f6755908 | 14 | #include <Library/DevicePathLib.h>\r |
bd9a5182 OM |
15 | #include <Library/UefiBootServicesTableLib.h>\r |
16 | #include <Library/UefiLib.h>\r | |
f6755908 | 17 | \r |
f6755908 OM |
18 | // Device Path representing an image in memory\r |
19 | #pragma pack(1)\r | |
20 | typedef struct {\r | |
e7108d0e MK |
21 | MEMMAP_DEVICE_PATH Node1;\r |
22 | EFI_DEVICE_PATH_PROTOCOL End;\r | |
f6755908 OM |
23 | } MEMORY_DEVICE_PATH;\r |
24 | #pragma pack()\r | |
25 | \r | |
e7108d0e | 26 | STATIC CONST MEMORY_DEVICE_PATH MemoryDevicePathTemplate =\r |
f6755908 OM |
27 | {\r |
28 | {\r | |
29 | {\r | |
30 | HARDWARE_DEVICE_PATH,\r | |
31 | HW_MEMMAP_DP,\r | |
32 | {\r | |
33 | (UINT8)(sizeof (MEMMAP_DEVICE_PATH)),\r | |
34 | (UINT8)((sizeof (MEMMAP_DEVICE_PATH)) >> 8),\r | |
35 | },\r | |
36 | }, // Header\r | |
37 | 0, // StartingAddress (set at runtime)\r | |
38 | 0 // EndingAddress (set at runtime)\r | |
39 | }, // Node1\r | |
40 | {\r | |
41 | END_DEVICE_PATH_TYPE,\r | |
42 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
b0fdce95 | 43 | { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 }\r |
f6755908 OM |
44 | } // End\r |
45 | };\r | |
46 | \r | |
fcf41edf AB |
47 | /**\r |
48 | Start an EFI Application from a Device Path\r | |
49 | \r | |
50 | @param ParentImageHandle Handle of the calling image\r | |
51 | @param DevicePath Location of the EFI Application\r | |
52 | \r | |
53 | @retval EFI_SUCCESS All drivers have been connected\r | |
54 | @retval EFI_NOT_FOUND The Linux kernel Device Path has not been found\r | |
55 | @retval EFI_OUT_OF_RESOURCES There is not enough resource memory to store the matching results.\r | |
56 | \r | |
57 | **/\r | |
58 | STATIC\r | |
59 | EFI_STATUS\r | |
60 | StartEfiApplication (\r | |
e7108d0e MK |
61 | IN EFI_HANDLE ParentImageHandle,\r |
62 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
63 | IN UINTN LoadOptionsSize,\r | |
64 | IN VOID *LoadOptions\r | |
fcf41edf AB |
65 | )\r |
66 | {\r | |
e7108d0e MK |
67 | EFI_STATUS Status;\r |
68 | EFI_HANDLE ImageHandle;\r | |
69 | EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;\r | |
fcf41edf AB |
70 | \r |
71 | // Load the image from the device path with Boot Services function\r | |
e7108d0e MK |
72 | Status = gBS->LoadImage (\r |
73 | TRUE,\r | |
74 | ParentImageHandle,\r | |
75 | DevicePath,\r | |
76 | NULL,\r | |
77 | 0,\r | |
78 | &ImageHandle\r | |
79 | );\r | |
fcf41edf | 80 | if (EFI_ERROR (Status)) {\r |
82e0c422 DB |
81 | //\r |
82 | // With EFI_SECURITY_VIOLATION retval, the Image was loaded and an ImageHandle was created\r | |
83 | // with a valid EFI_LOADED_IMAGE_PROTOCOL, but the image can not be started right now.\r | |
84 | // If the caller doesn't have the option to defer the execution of an image, we should\r | |
85 | // unload image for the EFI_SECURITY_VIOLATION to avoid resource leak.\r | |
86 | //\r | |
87 | if (Status == EFI_SECURITY_VIOLATION) {\r | |
88 | gBS->UnloadImage (ImageHandle);\r | |
89 | }\r | |
e7108d0e | 90 | \r |
fcf41edf AB |
91 | return Status;\r |
92 | }\r | |
93 | \r | |
94 | // Passed LoadOptions to the EFI Application\r | |
95 | if (LoadOptionsSize != 0) {\r | |
e7108d0e MK |
96 | Status = gBS->HandleProtocol (\r |
97 | ImageHandle,\r | |
98 | &gEfiLoadedImageProtocolGuid,\r | |
99 | (VOID **)&LoadedImage\r | |
100 | );\r | |
fcf41edf AB |
101 | if (EFI_ERROR (Status)) {\r |
102 | return Status;\r | |
103 | }\r | |
104 | \r | |
e7108d0e MK |
105 | LoadedImage->LoadOptionsSize = LoadOptionsSize;\r |
106 | LoadedImage->LoadOptions = LoadOptions;\r | |
fcf41edf AB |
107 | }\r |
108 | \r | |
109 | // Before calling the image, enable the Watchdog Timer for the 5 Minute period\r | |
110 | gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL);\r | |
111 | // Start the image\r | |
112 | Status = gBS->StartImage (ImageHandle, NULL, NULL);\r | |
113 | // Clear the Watchdog Timer after the image returns\r | |
114 | gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL);\r | |
115 | \r | |
116 | return Status;\r | |
117 | }\r | |
118 | \r | |
f6755908 OM |
119 | EFI_STATUS\r |
120 | BootAndroidBootImg (\r | |
e7108d0e MK |
121 | IN UINTN BufferSize,\r |
122 | IN VOID *Buffer\r | |
f6755908 OM |
123 | )\r |
124 | {\r | |
e7108d0e MK |
125 | EFI_STATUS Status;\r |
126 | CHAR8 KernelArgs[ANDROID_BOOTIMG_KERNEL_ARGS_SIZE];\r | |
127 | VOID *Kernel;\r | |
128 | UINTN KernelSize;\r | |
129 | VOID *Ramdisk;\r | |
130 | UINTN RamdiskSize;\r | |
131 | MEMORY_DEVICE_PATH KernelDevicePath;\r | |
132 | CHAR16 *LoadOptions, *NewLoadOptions;\r | |
f6755908 OM |
133 | \r |
134 | Status = ParseAndroidBootImg (\r | |
e7108d0e MK |
135 | Buffer,\r |
136 | &Kernel,\r | |
137 | &KernelSize,\r | |
138 | &Ramdisk,\r | |
139 | &RamdiskSize,\r | |
140 | KernelArgs\r | |
141 | );\r | |
f6755908 OM |
142 | if (EFI_ERROR (Status)) {\r |
143 | return Status;\r | |
144 | }\r | |
145 | \r | |
146 | KernelDevicePath = MemoryDevicePathTemplate;\r | |
147 | \r | |
148 | // Have to cast to UINTN before casting to EFI_PHYSICAL_ADDRESS in order to\r | |
149 | // appease GCC.\r | |
e7108d0e MK |
150 | KernelDevicePath.Node1.StartingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)Kernel;\r |
151 | KernelDevicePath.Node1.EndingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)Kernel + KernelSize;\r | |
f6755908 | 152 | \r |
34e0bcea AB |
153 | // Initialize Linux command line\r |
154 | LoadOptions = CatSPrint (NULL, L"%a", KernelArgs);\r | |
155 | if (LoadOptions == NULL) {\r | |
bd9a5182 OM |
156 | return EFI_OUT_OF_RESOURCES;\r |
157 | }\r | |
158 | \r | |
34e0bcea | 159 | if (RamdiskSize != 0) {\r |
e7108d0e MK |
160 | NewLoadOptions = CatSPrint (\r |
161 | LoadOptions,\r | |
162 | L" initrd=0x%x,0x%x",\r | |
163 | (UINTN)Ramdisk,\r | |
164 | RamdiskSize\r | |
165 | );\r | |
34e0bcea AB |
166 | FreePool (LoadOptions);\r |
167 | if (NewLoadOptions == NULL) {\r | |
168 | return EFI_OUT_OF_RESOURCES;\r | |
169 | }\r | |
e7108d0e | 170 | \r |
34e0bcea | 171 | LoadOptions = NewLoadOptions;\r |
bd9a5182 OM |
172 | }\r |
173 | \r | |
e7108d0e MK |
174 | Status = StartEfiApplication (\r |
175 | gImageHandle,\r | |
176 | (EFI_DEVICE_PATH_PROTOCOL *)&KernelDevicePath,\r | |
34e0bcea | 177 | StrSize (LoadOptions),\r |
e7108d0e MK |
178 | LoadOptions\r |
179 | );\r | |
f6755908 | 180 | if (EFI_ERROR (Status)) {\r |
a1878955 | 181 | DEBUG ((DEBUG_ERROR, "Couldn't Boot Linux: %d\n", Status));\r |
34e0bcea AB |
182 | Status = EFI_DEVICE_ERROR;\r |
183 | goto FreeLoadOptions;\r | |
f6755908 OM |
184 | }\r |
185 | \r | |
186 | // If we got here we do a confused face because BootLinuxFdt returned,\r | |
187 | // reporting success.\r | |
a1878955 | 188 | DEBUG ((DEBUG_ERROR, "WARNING: BdsBootLinuxFdt returned EFI_SUCCESS.\n"));\r |
f6755908 | 189 | return EFI_SUCCESS;\r |
34e0bcea AB |
190 | \r |
191 | FreeLoadOptions:\r | |
192 | FreePool (LoadOptions);\r | |
193 | return Status;\r | |
f6755908 | 194 | }\r |