+++ /dev/null
-/*++\r
-\r
-Copyright (c) 2006, Intel Corporation \r
-All rights reserved. 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
-http://opensource.org/licenses/bsd-license.php \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
-Module Name:\r
-\r
- Capsules.c\r
-\r
-Abstract:\r
-\r
- BDS routines to handle capsules.\r
-\r
---*/\r
-\r
-\r
-#include <Common/FlashMap.H>\r
-\r
-VOID\r
-BdsLockFv (\r
- IN EFI_CPU_IO_PROTOCOL *CpuIo,\r
- IN EFI_FLASH_SUBAREA_ENTRY *FlashEntry\r
- );\r
-\r
-VOID\r
-BdsLockFv (\r
- IN EFI_CPU_IO_PROTOCOL *CpuIo,\r
- IN EFI_FLASH_SUBAREA_ENTRY *FlashEntry\r
- )\r
-{\r
- EFI_FV_BLOCK_MAP_ENTRY *BlockMap;\r
- EFI_FIRMWARE_VOLUME_HEADER *FvHeader;\r
- UINT64 BaseAddress;\r
- UINT8 Data;\r
- UINT32 BlockLength;\r
- UINTN Index;\r
-\r
- BaseAddress = FlashEntry->Base - 0x400000 + 2;\r
- FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) ((UINTN) (FlashEntry->Base));\r
- BlockMap = &(FvHeader->FvBlockMap[0]);\r
-\r
- while ((BlockMap->NumBlocks != 0) && (BlockMap->BlockLength != 0)) {\r
- BlockLength = BlockMap->BlockLength;\r
- for (Index = 0; Index < BlockMap->NumBlocks; Index++) {\r
- CpuIo->Mem.Read (\r
- CpuIo,\r
- EfiCpuIoWidthUint8,\r
- BaseAddress,\r
- 1,\r
- &Data\r
- );\r
- Data = (UINT8) (Data | 0x3);\r
- CpuIo->Mem.Write (\r
- CpuIo,\r
- EfiCpuIoWidthUint8,\r
- BaseAddress,\r
- 1,\r
- &Data\r
- );\r
- BaseAddress += BlockLength;\r
- }\r
-\r
- BlockMap++;\r
- }\r
-}\r
-\r
-VOID\r
-BdsLockNonUpdatableFlash (\r
- VOID\r
- )\r
-{\r
- EFI_FLASH_MAP_ENTRY_DATA *FlashMapEntryData;\r
- EFI_PEI_HOB_POINTERS GuidHob;\r
- EFI_STATUS Status;\r
- EFI_CPU_IO_PROTOCOL *CpuIo;\r
-\r
- Status = gBS->LocateProtocol (&gEfiCpuIoProtocolGuid, NULL, &CpuIo);\r
- ASSERT_EFI_ERROR (Status);\r
- \r
- GuidHob.Raw = GetHobList ();\r
- while ((GuidHob.Raw = GetNextGuidHob (&gEfiFlashMapHobGuid, GuidHob.Raw)) != NULL) {\r
- FlashMapEntryData = (EFI_FLASH_MAP_ENTRY_DATA *) GET_GUID_HOB_DATA (GuidHob.Guid);\r
-\r
- //\r
- // Get the variable store area\r
- //\r
- if ((FlashMapEntryData->AreaType == EFI_FLASH_AREA_RECOVERY_BIOS) ||\r
- (FlashMapEntryData->AreaType == EFI_FLASH_AREA_MAIN_BIOS)\r
- ) {\r
- BdsLockFv (CpuIo, &(FlashMapEntryData->Entries[0]));\r
- }\r
- GuidHob.Raw = GET_NEXT_HOB (GuidHob);\r
- }\r
-\r
- return ;\r
-}\r
-\r
-EFI_STATUS\r
-ProcessCapsules (\r
- EFI_BOOT_MODE BootMode\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- This routine is called to see if there are any capsules we need to process.\r
- If the boot mode is not UPDATE, then we do nothing. Otherwise find the\r
- capsule HOBS and produce firmware volumes for them via the DXE service.\r
- Then call the dispatcher to dispatch drivers from them. Finally, check\r
- the status of the updates.\r
-\r
-Arguments:\r
-\r
- BootMode - the current boot mode\r
-\r
-Returns:\r
- \r
- EFI_INVALID_PARAMETER - boot mode is not correct for an update\r
-\r
-Note:\r
- \r
- This function should be called by BDS in case we need to do some\r
- sort of processing even if there is no capsule to process. We\r
- need to do this if an earlier update went awry and we need to\r
- clear the capsule variable so on the next reset PEI does not see it and \r
- think there is a capsule available.\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- EFI_HOB_CAPSULE_VOLUME *CvHob;\r
- EFI_PHYSICAL_ADDRESS BaseAddress;\r
- UINT64 Length;\r
- EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r
- EFI_HANDLE FvProtocolHandle;\r
-\r
- //\r
- // We don't do anything else if the boot mode is not flash-update\r
- //\r
- if (BootMode != BOOT_ON_FLASH_UPDATE) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- //\r
- // Only one capsule HOB allowed.\r
- //\r
- CvHob = GetFirstHob (EFI_HOB_TYPE_CV);\r
- if (CvHob == NULL) {\r
- //\r
- // We didn't find a hob, so had no errors.\r
- //\r
- BdsLockNonUpdatableFlash ();\r
- return EFI_SUCCESS;\r
- }\r
- \r
- BaseAddress = CvHob->BaseAddress;\r
- Length = CvHob->Length;\r
-\r
- Status = EFI_SUCCESS;\r
- //\r
- // Now walk the capsule and call the core to process each\r
- // firmware volume in it.\r
- //\r
- while (Length != 0) {\r
- //\r
- // Point to the next firmware volume header, and then\r
- // call the DXE service to process it.\r
- //\r
- FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) BaseAddress;\r
- if (FwVolHeader->FvLength > Length) {\r
- //\r
- // Notes: need to stuff this status somewhere so that the\r
- // error can be detected at OS runtime\r
- //\r
- Status = EFI_VOLUME_CORRUPTED;\r
- break;\r
- }\r
-\r
- Status = gDS->ProcessFirmwareVolume (\r
- (VOID *) (UINTN) BaseAddress,\r
- (UINTN) FwVolHeader->FvLength,\r
- &FvProtocolHandle\r
- );\r
- if (EFI_ERROR (Status)) {\r
- break;\r
- }\r
- //\r
- // Call the dispatcher to dispatch any drivers from the produced firmware volume\r
- //\r
- gDS->Dispatch ();\r
- //\r
- // On to the next FV in the capsule\r
- //\r
- Length -= FwVolHeader->FvLength;\r
- BaseAddress = (EFI_PHYSICAL_ADDRESS) ((UINTN) BaseAddress + FwVolHeader->FvLength);\r
- //\r
- // Notes: when capsule spec is finalized, if the requirement is made to\r
- // have each FV in a capsule aligned, then we will need to align the\r
- // BaseAddress and Length here.\r
- //\r
- }\r
- \r
-\r
- BdsLockNonUpdatableFlash ();\r
-\r
- return Status;\r
-}\r
-\r
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