/** @file\r
Misc library functions.\r
\r
-Copyright (c) 2011 - 2015, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2011 - 2017, Intel Corporation. All rights reserved.<BR>\r
+(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
\r
/**\r
This routine adjust the memory information for different memory type and \r
- save them into the variables for next boot.\r
+ save them into the variables for next boot. It resets the system when\r
+ memory information is updated and the current boot option belongs to\r
+ boot category instead of application category. It doesn't count the\r
+ reserved memory occupied by RAM Disk.\r
+\r
+ @param Boot TRUE if current boot option belongs to boot\r
+ category instead of application category.\r
**/\r
VOID\r
BmSetMemoryTypeInformationVariable (\r
- VOID\r
+ IN BOOLEAN Boot\r
)\r
{\r
EFI_STATUS Status;\r
//\r
return;\r
}\r
- PreviousMemoryTypeInformation = GET_GUID_HOB_DATA (GuidHob);\r
- VariableSize = GET_GUID_HOB_DATA_SIZE (GuidHob);\r
+ VariableSize = GET_GUID_HOB_DATA_SIZE (GuidHob);\r
+ PreviousMemoryTypeInformation = AllocateCopyPool (VariableSize, GET_GUID_HOB_DATA (GuidHob));\r
+ if (PreviousMemoryTypeInformation == NULL) {\r
+ return;\r
+ }\r
\r
//\r
// Use a heuristic to adjust the Memory Type Information for the next boot\r
\r
if (!EFI_ERROR (Status)) {\r
//\r
- // If the Memory Type Information settings have been modified, then reset the platform\r
- // so the new Memory Type Information setting will be used to guarantee that an S4\r
+ // If the Memory Type Information settings have been modified and the boot option belongs to boot category,\r
+ // then reset the platform so the new Memory Type Information setting will be used to guarantee that an S4\r
// entry/resume cycle will not fail.\r
//\r
if (MemoryTypeInformationModified) {\r
- DEBUG ((EFI_D_INFO, "Memory Type Information settings change. Warm Reset!!!\n"));\r
- gRT->ResetSystem (EfiResetWarm, EFI_SUCCESS, 0, NULL);\r
+ DEBUG ((EFI_D_INFO, "Memory Type Information settings change.\n"));\r
+ if (Boot && PcdGetBool (PcdResetOnMemoryTypeInformationChange)) {\r
+ DEBUG ((EFI_D_INFO, "...Warm Reset!!!\n"));\r
+ gRT->ResetSystem (EfiResetWarm, EFI_SUCCESS, 0, NULL);\r
+ }\r
}\r
} else {\r
DEBUG ((EFI_D_ERROR, "Memory Type Information settings cannot be saved. OS S4 may fail!\n"));\r
}\r
}\r
+ FreePool (PreviousMemoryTypeInformation);\r
}\r
\r
/**\r
FreePool (Str);\r
}\r
}\r
+\r
+/**\r
+ Convert a single character to number.\r
+ It assumes the input Char is in the scope of L'0' ~ L'9' and L'A' ~ L'F'\r
+\r
+ @param Char The input char which need to convert to int.\r
+\r
+ @return The converted 8-bit number or (UINTN) -1 if conversion failed.\r
+**/\r
+UINTN\r
+BmCharToUint (\r
+ IN CHAR16 Char\r
+ )\r
+{\r
+ if ((Char >= L'0') && (Char <= L'9')) {\r
+ return (Char - L'0');\r
+ }\r
+\r
+ if ((Char >= L'A') && (Char <= L'F')) {\r
+ return (Char - L'A' + 0xA);\r
+ }\r
+\r
+ ASSERT (FALSE);\r
+ return (UINTN) -1;\r
+}\r
+\r
+/**\r
+ Dispatch the deferred images that are returned from all DeferredImageLoad instances.\r
+\r
+ @retval EFI_SUCCESS At least one deferred image is loaded successfully and started.\r
+ @retval EFI_NOT_FOUND There is no deferred image.\r
+ @retval EFI_ACCESS_DENIED There are deferred images but all of them are failed to load.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+EfiBootManagerDispatchDeferredImages (\r
+ VOID\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_DEFERRED_IMAGE_LOAD_PROTOCOL *DeferredImage;\r
+ UINTN HandleCount;\r
+ EFI_HANDLE *Handles;\r
+ UINTN Index;\r
+ UINTN ImageIndex;\r
+ EFI_DEVICE_PATH_PROTOCOL *ImageDevicePath;\r
+ VOID *Image;\r
+ UINTN ImageSize;\r
+ BOOLEAN BootOption;\r
+ EFI_HANDLE ImageHandle;\r
+ UINTN ExitDataSize;\r
+ CHAR16 *ExitData;\r
+ UINTN ImageCount;\r
+ UINTN LoadCount;\r
+\r
+ //\r
+ // Find all the deferred image load protocols.\r
+ //\r
+ HandleCount = 0;\r
+ Handles = NULL;\r
+ Status = gBS->LocateHandleBuffer (\r
+ ByProtocol,\r
+ &gEfiDeferredImageLoadProtocolGuid,\r
+ NULL,\r
+ &HandleCount,\r
+ &Handles\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+\r
+ ImageCount = 0;\r
+ LoadCount = 0;\r
+ for (Index = 0; Index < HandleCount; Index++) {\r
+ Status = gBS->HandleProtocol (Handles[Index], &gEfiDeferredImageLoadProtocolGuid, (VOID **) &DeferredImage);\r
+ if (EFI_ERROR (Status)) {\r
+ continue;\r
+ }\r
+\r
+ for (ImageIndex = 0; ;ImageIndex++) {\r
+ //\r
+ // Load all the deferred images in this protocol instance.\r
+ //\r
+ Status = DeferredImage->GetImageInfo (\r
+ DeferredImage,\r
+ ImageIndex,\r
+ &ImageDevicePath,\r
+ (VOID **) &Image,\r
+ &ImageSize,\r
+ &BootOption\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ break;\r
+ }\r
+ ImageCount++;\r
+ //\r
+ // Load and start the image.\r
+ //\r
+ Status = gBS->LoadImage (\r
+ BootOption,\r
+ gImageHandle,\r
+ ImageDevicePath,\r
+ NULL,\r
+ 0,\r
+ &ImageHandle\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ LoadCount++;\r
+ //\r
+ // Before calling the image, enable the Watchdog Timer for\r
+ // a 5 Minute period\r
+ //\r
+ gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL);\r
+ Status = gBS->StartImage (ImageHandle, &ExitDataSize, &ExitData);\r
+ if (ExitData != NULL) {\r
+ FreePool (ExitData);\r
+ }\r
+\r
+ //\r
+ // Clear the Watchdog Timer after the image returns.\r
+ //\r
+ gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL);\r
+ }\r
+ }\r
+ }\r
+ if (Handles != NULL) {\r
+ FreePool (Handles);\r
+ }\r
+\r
+ if (ImageCount == 0) {\r
+ return EFI_NOT_FOUND;\r
+ } else {\r
+ if (LoadCount == 0) {\r
+ return EFI_ACCESS_DENIED;\r
+ } else {\r
+ return EFI_SUCCESS;\r
+ }\r
+ }\r
+}\r
projects / mirror_edk2.git / blobdiff