allows the PEI phase to pass information to the DXE phase. HOBs are position \r
independent and can be relocated easily to different memory memory locations.\r
\r
-Copyright (c) 2006 - 2008, Intel Corporation<BR>\r
-All rights reserved. This program and the accompanying materials\r
+Copyright (c) 2006 - 2011, 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
http://opensource.org/licenses/bsd-license.php\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
- @return The start address of GUID HOB data.\r
+ @retval NULL The GUID HOB could not be allocated.\r
+ @retval others The start address of GUID HOB data.\r
\r
**/\r
VOID *\r
@param Data The data to be copied into the data field of the GUID HOB.\r
@param DataLength The size of the data payload for the GUID HOB.\r
\r
- @return The start address of GUID HOB data.\r
+ @retval NULL The GUID HOB could not be allocated.\r
+ @retval others The start address of GUID HOB data.\r
\r
**/\r
VOID *\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 the platform does not support Capsule Volume HOBs, then ASSERT().\r
If there is no additional space for HOB creation, then ASSERT().\r
\r
@param BaseAddress The base address of the Capsule Volume.\r
Returns the type of a HOB.\r
\r
This macro returns the HobType field from the HOB header for the \r
- HOB specified by Hob.\r
+ HOB specified by HobStart.\r
\r
- @param Hob A pointer to a HOB.\r
+ @param HobStart A pointer to a HOB.\r
\r
- @return HobType\r
+ @return HobType.\r
\r
**/\r
-#define GET_HOB_TYPE(Hob) ((Hob).Header->HobType)\r
+#define GET_HOB_TYPE(HobStart) \\r
+ ((*(EFI_HOB_GENERIC_HEADER **)&(HobStart))->HobType)\r
\r
/**\r
Returns the length, in bytes, of a HOB.\r
\r
This macro returns the HobLength field from the HOB header for the \r
- HOB specified by Hob.\r
+ HOB specified by HobStart.\r
\r
- @param Hob A pointer to a HOB.\r
+ @param HobStart A pointer to a HOB.\r
\r
- @return HobLength\r
+ @return HobLength.\r
\r
**/\r
-#define GET_HOB_LENGTH(Hob) ((Hob).Header->HobLength)\r
+#define GET_HOB_LENGTH(HobStart) \\r
+ ((*(EFI_HOB_GENERIC_HEADER **)&(HobStart))->HobLength)\r
\r
/**\r
Returns a pointer to the next HOB in the HOB list.\r
\r
This macro returns a pointer to HOB that follows the \r
- HOB specified by Hob in the HOB List.\r
+ HOB specified by HobStart in the HOB List.\r
\r
- @param Hob A pointer to a HOB.\r
+ @param HobStart A pointer to a HOB.\r
\r
@return A pointer to the next HOB in the HOB list.\r
\r
**/\r
-#define GET_NEXT_HOB(Hob) ((Hob).Raw + GET_HOB_LENGTH (Hob))\r
+#define GET_NEXT_HOB(HobStart) \\r
+ (VOID *)(*(UINT8 **)&(HobStart) + GET_HOB_LENGTH (HobStart))\r
\r
/**\r
Determines if a HOB is the last HOB in the HOB list.\r
\r
- This macro determine if the HOB specified by Hob is the \r
- last HOB in the HOB list. If Hob is last HOB in the HOB list, \r
+ This macro determine if the HOB specified by HobStart is the \r
+ last HOB in the HOB list. If HobStart is last HOB in the HOB list, \r
then TRUE is returned. Otherwise, FALSE is returned.\r
\r
- @param Hob A pointer to a HOB.\r
+ @param HobStart A pointer to a HOB.\r
\r
- @retval TRUE The HOB specified by Hob is the last HOB in the HOB list.\r
- @retval FALSE The HOB specified by Hob is not the last HOB in the HOB list.\r
+ @retval TRUE The HOB specified by HobStart is the last HOB in the HOB list.\r
+ @retval FALSE The HOB specified by HobStart is not the last HOB in the HOB list.\r
\r
**/\r
-#define END_OF_HOB_LIST(Hob) (GET_HOB_TYPE (Hob) == (UINT16)EFI_HOB_TYPE_END_OF_HOB_LIST)\r
+#define END_OF_HOB_LIST(HobStart) (GET_HOB_TYPE (HobStart) == (UINT16)EFI_HOB_TYPE_END_OF_HOB_LIST)\r
\r
/**\r
Returns a pointer to data buffer from a HOB of type EFI_HOB_TYPE_GUID_EXTENSION.\r
\r
- This macro returns a pointer to the data buffer in a HOB specified by Hob.\r
- Hob is assumed to be a HOB of type EFI_HOB_TYPE_GUID_EXTENSION. \r
+ This macro returns a pointer to the data buffer in a HOB specified by HobStart.\r
+ HobStart is assumed to be a HOB of type EFI_HOB_TYPE_GUID_EXTENSION. \r
\r
- @param Hob A pointer to a HOB.\r
+ @param GuidHob A pointer to a HOB.\r
\r
- @return A pointer to the data buffer in a HOB\r
+ @return A pointer to the data buffer in a HOB.\r
\r
**/\r
-#define GET_GUID_HOB_DATA(GuidHob) ((VOID *) (((UINT8 *) &((GuidHob)->Name)) + sizeof (EFI_GUID)))\r
+#define GET_GUID_HOB_DATA(HobStart) \\r
+ (VOID *)(*(UINT8 **)&(HobStart) + sizeof (EFI_HOB_GUID_TYPE))\r
\r
/**\r
Returns the size of the data buffer from a HOB of type EFI_HOB_TYPE_GUID_EXTENSION.\r
\r
- This macro returns the size, in bytes, of the data buffer in a HOB specified by Hob.\r
- Hob is assumed to be a HOB of type EFI_HOB_TYPE_GUID_EXTENSION.\r
+ This macro returns the size, in bytes, of the data buffer in a HOB specified by HobStart.\r
+ HobStart is assumed to be a HOB of type EFI_HOB_TYPE_GUID_EXTENSION.\r
\r
- @param Hob A pointer to a HOB.\r
+ @param GuidHob A pointer to a HOB.\r
\r
- @return The size of the data buffer\r
+ @return The size of the data buffer.\r
**/\r
-#define GET_GUID_HOB_DATA_SIZE(GuidHob) (((GuidHob)->Header).HobLength - sizeof (EFI_HOB_GUID_TYPE))\r
+#define GET_GUID_HOB_DATA_SIZE(HobStart) \\r
+ (UINT16)(GET_HOB_LENGTH (HobStart) - sizeof (EFI_HOB_GUID_TYPE))\r
\r
#endif\r
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