/** @file\r
Provide Hob Library functions for Pei phase.\r
\r
-Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2007 - 2016, 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
Hob->EntryPoint = EntryPoint;\r
}\r
\r
+/**\r
+ Builds a HOB that describes a chunk of system memory with Owner GUID.\r
+\r
+ This function builds a HOB that describes a chunk of system memory.\r
+ It can only be invoked during PEI phase;\r
+ for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
+ \r
+ If there is no additional space for HOB creation, then ASSERT().\r
+\r
+ @param ResourceType The type of resource described by this HOB.\r
+ @param ResourceAttribute The resource attributes of the memory described by this HOB.\r
+ @param PhysicalStart The 64 bit physical address of memory described by this HOB.\r
+ @param NumberOfBytes The length of the memory described by this HOB in bytes.\r
+ @param OwnerGUID GUID for the owner of this resource.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+BuildResourceDescriptorWithOwnerHob (\r
+ IN EFI_RESOURCE_TYPE ResourceType,\r
+ IN EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute,\r
+ IN EFI_PHYSICAL_ADDRESS PhysicalStart,\r
+ IN UINT64 NumberOfBytes,\r
+ IN EFI_GUID *OwnerGUID\r
+ )\r
+{\r
+ EFI_HOB_RESOURCE_DESCRIPTOR *Hob;\r
+\r
+ Hob = InternalPeiCreateHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, (UINT16) sizeof (EFI_HOB_RESOURCE_DESCRIPTOR));\r
+ if (Hob == NULL) {\r
+ return;\r
+ }\r
+\r
+ Hob->ResourceType = ResourceType;\r
+ Hob->ResourceAttribute = ResourceAttribute;\r
+ Hob->PhysicalStart = PhysicalStart;\r
+ Hob->ResourceLength = NumberOfBytes;\r
+\r
+ CopyGuid (&Hob->Owner, OwnerGUID);\r
+}\r
+\r
/**\r
Builds a HOB that describes a chunk of system memory.\r
\r
Hob->ResourceAttribute = ResourceAttribute;\r
Hob->PhysicalStart = PhysicalStart;\r
Hob->ResourceLength = NumberOfBytes;\r
+ ZeroMem (&(Hob->Owner), sizeof (EFI_GUID));\r
}\r
\r
/**\r
\r
If Guid is NULL, then ASSERT().\r
If there is no additional space for HOB creation, then ASSERT().\r
- If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().\r
+ If DataLength > (0xFFF8 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().\r
+ HobLength is UINT16 and multiples of 8 bytes, so the max HobLength is 0xFFF8.\r
\r
@param Guid The GUID to tag the customized HOB.\r
@param DataLength The size of the data payload for the GUID HOB.\r
//\r
// Make sure that data length is not too long.\r
//\r
- ASSERT (DataLength <= (0xffff - sizeof (EFI_HOB_GUID_TYPE)));\r
+ ASSERT (DataLength <= (0xFFF8 - sizeof (EFI_HOB_GUID_TYPE)));\r
\r
Hob = InternalPeiCreateHob (EFI_HOB_TYPE_GUID_EXTENSION, (UINT16) (sizeof (EFI_HOB_GUID_TYPE) + DataLength));\r
if (Hob == NULL) {\r
If Guid is NULL, then ASSERT().\r
If Data is NULL and DataLength > 0, then ASSERT().\r
If there is no additional space for HOB creation, then ASSERT().\r
- If DataLength >= (0x10000 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().\r
+ If DataLength > (0xFFF8 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().\r
+ HobLength is UINT16 and multiples of 8 bytes, so the max HobLength is 0xFFF8.\r
\r
@param Guid The GUID to tag the customized HOB.\r
@param Data The data to be copied into the data field of the GUID HOB.\r
return CopyMem (HobData, Data, DataLength);\r
}\r
\r
+/**\r
+ Check FV alignment.\r
+\r
+ @param BaseAddress The base address of the Firmware Volume.\r
+ @param Length The size of the Firmware Volume in bytes.\r
+\r
+ @retval TRUE FvImage buffer is at its required alignment.\r
+ @retval FALSE FvImage buffer is not at its required alignment.\r
+\r
+**/\r
+BOOLEAN\r
+InternalCheckFvAlignment (\r
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
+ IN UINT64 Length\r
+ )\r
+{\r
+ EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r
+ UINT32 FvAlignment;\r
+\r
+ FvAlignment = 0;\r
+ FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) BaseAddress;\r
+\r
+ //\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 ((FwVolHeader->Attributes & EFI_FVB2_WEAK_ALIGNMENT) != EFI_FVB2_WEAK_ALIGNMENT) {\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
+ //\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
+ DEBUG ((\r
+ DEBUG_ERROR,\r
+ "Unaligned FvImage found at 0x%lx:0x%lx, the required alignment is 0x%x\n",\r
+ BaseAddress,\r
+ Length,\r
+ FvAlignment\r
+ ));\r
+ return FALSE;\r
+ }\r
+ }\r
+\r
+ return TRUE;\r
+}\r
+\r
/**\r
Builds a Firmware Volume HOB.\r
\r
for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
\r
If there is no additional space for HOB creation, then ASSERT().\r
+ If the FvImage buffer is not at its required alignment, then ASSERT().\r
\r
@param BaseAddress The base address of the Firmware Volume.\r
@param Length The size of the Firmware Volume in bytes.\r
{\r
EFI_HOB_FIRMWARE_VOLUME *Hob;\r
\r
+ if (!InternalCheckFvAlignment (BaseAddress, Length)) {\r
+ ASSERT (FALSE);\r
+ return;\r
+ }\r
+\r
Hob = InternalPeiCreateHob (EFI_HOB_TYPE_FV, (UINT16) sizeof (EFI_HOB_FIRMWARE_VOLUME));\r
if (Hob == NULL) {\r
return;\r
for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.\r
\r
If there is no additional space for HOB creation, then ASSERT().\r
+ If the FvImage buffer is not at its required alignment, then ASSERT().\r
\r
@param BaseAddress The base address of the Firmware Volume.\r
@param Length The size of the Firmware Volume in bytes.\r
{\r
EFI_HOB_FIRMWARE_VOLUME2 *Hob;\r
\r
+ if (!InternalCheckFvAlignment (BaseAddress, Length)) {\r
+ ASSERT (FALSE);\r
+ return;\r
+ }\r
+\r
Hob = InternalPeiCreateHob (EFI_HOB_TYPE_FV2, (UINT16) sizeof (EFI_HOB_FIRMWARE_VOLUME2));\r
if (Hob == NULL) {\r
return;\r
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