/** @file\r
Implementations for Firmware Volume Block protocol.\r
\r
- It consumes FV HOBs and creates read-lonly Firmare Volume Block protocol\r
+ It consumes FV HOBs and creates read-only Firmare Volume Block protocol\r
instances for each of them.\r
\r
-Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<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
0,\r
NULL,\r
0,\r
+ 0,\r
0\r
};\r
\r
\r
if (Offset > FvbDevice->LbaCache[LbaIndex].Length) {\r
//\r
- // all exceed boundry, read nothing.\r
+ // all exceed boundary, read nothing.\r
//\r
*NumBytes = 0;\r
return EFI_BAD_BUFFER_SIZE;\r
NumOfBytesRead = *NumBytes;\r
if (Offset + NumOfBytesRead > FvbDevice->LbaCache[LbaIndex].Length) {\r
//\r
- // partial exceed boundry, read data from current postion to end.\r
+ // partial exceed boundary, read data from current postion to end.\r
//\r
NumOfBytesRead = FvbDevice->LbaCache[LbaIndex].Length - Offset;\r
}\r
return EFI_SUCCESS;\r
}\r
\r
+/**\r
+\r
+ Get FVB authentication status\r
+\r
+ @param FvbProtocol FVB protocol.\r
+\r
+ @return Authentication status.\r
+\r
+**/\r
+UINT32\r
+GetFvbAuthenticationStatus (\r
+ IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol\r
+ )\r
+{\r
+ EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r
+ UINT32 AuthenticationStatus;\r
+\r
+ AuthenticationStatus = 0;\r
+ FvbDevice = BASE_CR (FvbProtocol, EFI_FW_VOL_BLOCK_DEVICE, FwVolBlockInstance);\r
+ if (FvbDevice->Signature == FVB_DEVICE_SIGNATURE) {\r
+ AuthenticationStatus = FvbDevice->AuthenticationStatus;\r
+ }\r
\r
+ return AuthenticationStatus;\r
+}\r
\r
/**\r
This routine produces a firmware volume block protocol on a given\r
@param BaseAddress base address of the firmware volume image\r
@param Length length of the firmware volume image\r
@param ParentHandle handle of parent firmware volume, if this image\r
- came from an FV image file in another firmware\r
+ came from an FV image file and section in another firmware\r
volume (ala capsules)\r
+ @param AuthenticationStatus Authentication status inherited, if this image\r
+ came from an FV image file and section in another firmware volume.\r
@param FvProtocol Firmware volume block protocol produced.\r
\r
@retval EFI_VOLUME_CORRUPTED Volume corrupted.\r
IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
IN UINT64 Length,\r
IN EFI_HANDLE ParentHandle,\r
+ IN UINT32 AuthenticationStatus,\r
OUT EFI_HANDLE *FvProtocol OPTIONAL\r
)\r
{\r
if (FwVolHeader->Signature != EFI_FVH_SIGNATURE) {\r
return EFI_VOLUME_CORRUPTED;\r
}\r
+\r
//\r
- // Get FvHeader alignment\r
- //\r
- FvAlignment = 1 << ((FwVolHeader->Attributes & EFI_FVB2_ALIGNMENT) >> 16);\r
- //\r
- // FvAlignment must be greater than or equal to 8 bytes of the minimum FFS alignment value. \r
+ // If EFI_FVB2_WEAK_ALIGNMENT is set in the volume header then the first byte of the volume\r
+ // can be aligned on any power-of-two boundary. A weakly aligned volume can not be moved from\r
+ // its initial linked location and maintain its alignment.\r
//\r
- if (FvAlignment < 8) {\r
- FvAlignment = 8;\r
- }\r
- if ((UINTN)BaseAddress % FvAlignment != 0) {\r
+ if ((FwVolHeader->Attributes & EFI_FVB2_WEAK_ALIGNMENT) != EFI_FVB2_WEAK_ALIGNMENT) {\r
//\r
- // FvImage buffer is not at its required alignment.\r
+ // Get FvHeader alignment\r
//\r
- return EFI_VOLUME_CORRUPTED;\r
+ FvAlignment = 1 << ((FwVolHeader->Attributes & EFI_FVB2_ALIGNMENT) >> 16);\r
+ //\r
+ // FvAlignment must be greater than or equal to 8 bytes of the minimum FFS alignment value.\r
+ //\r
+ if (FvAlignment < 8) {\r
+ FvAlignment = 8;\r
+ }\r
+ if ((UINTN)BaseAddress % FvAlignment != 0) {\r
+ //\r
+ // FvImage buffer is not at its required alignment.\r
+ //\r
+ return EFI_VOLUME_CORRUPTED;\r
+ }\r
}\r
+\r
//\r
// Allocate EFI_FW_VOL_BLOCK_DEVICE\r
//\r
FvbDev->BaseAddress = BaseAddress;\r
FvbDev->FvbAttributes = FwVolHeader->Attributes;\r
FvbDev->FwVolBlockInstance.ParentHandle = ParentHandle;\r
+ if (ParentHandle != NULL) {\r
+ FvbDev->AuthenticationStatus = AuthenticationStatus;\r
+ }\r
\r
//\r
// Init the block caching fields of the device\r
PtrBlockMapEntry++) {\r
FvbDev->NumBlocks += PtrBlockMapEntry->NumBlocks;\r
}\r
+\r
//\r
// Second, allocate the cache\r
//\r
+ if (FvbDev->NumBlocks >= (MAX_ADDRESS / sizeof (LBA_CACHE))) {\r
+ CoreFreePool (FvbDev);\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
FvbDev->LbaCache = AllocatePool (FvbDev->NumBlocks * sizeof (LBA_CACHE));\r
if (FvbDev->LbaCache == NULL) {\r
CoreFreePool (FvbDev);\r
//\r
// Produce an FVB protocol for it\r
//\r
- ProduceFVBProtocolOnBuffer (FvHob.FirmwareVolume->BaseAddress, FvHob.FirmwareVolume->Length, NULL, NULL);\r
+ ProduceFVBProtocolOnBuffer (FvHob.FirmwareVolume->BaseAddress, FvHob.FirmwareVolume->Length, NULL, 0, NULL);\r
FvHob.Raw = GET_NEXT_HOB (FvHob);\r
}\r
\r
particular, it can be called by BDS to process a single firmware\r
volume found in a capsule.\r
\r
+ Caution: The caller need validate the input firmware volume to follow\r
+ PI specification.\r
+ DxeCore will trust the input data and process firmware volume directly.\r
+\r
@param FvHeader pointer to a firmware volume header\r
@param Size the size of the buffer pointed to by FvHeader\r
@param FVProtocolHandle the handle on which a firmware volume protocol\r
(EFI_PHYSICAL_ADDRESS) (UINTN) FvHeader,\r
(UINT64)Size,\r
NULL,\r
+ 0,\r
FVProtocolHandle\r
);\r
//\r
// somehow.\r
//\r
if (!EFI_ERROR(Status)) {\r
+ ASSERT (*FVProtocolHandle != NULL);\r
Ptr = NULL;\r
Status = CoreHandleProtocol (*FVProtocolHandle, &gEfiFirmwareVolume2ProtocolGuid, (VOID **) &Ptr);\r
if (EFI_ERROR(Status) || (Ptr == NULL)) {\r
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