diff options
Diffstat (limited to 'MdeModulePkg/Include/Guid')
-rw-r--r-- | MdeModulePkg/Include/Guid/CapsuleVendor.h | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/MdeModulePkg/Include/Guid/CapsuleVendor.h b/MdeModulePkg/Include/Guid/CapsuleVendor.h index 5bbccd3652..b326018c49 100644 --- a/MdeModulePkg/Include/Guid/CapsuleVendor.h +++ b/MdeModulePkg/Include/Guid/CapsuleVendor.h @@ -1,7 +1,8 @@ /** @file
- This file defines capsule update guid, capsule variable name and
- capsule guid hob data structure, which are required by capsule update feature.
+ This file defines capsule vendor guid, capsule variable name
+ and capsule guid hob data structure.
+ They are used by EDKII implementation of capsule update across a system reset.
Copyright (c) 2006 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
@@ -18,9 +19,11 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #define __EFI_CAPSULE_VENDOR_GUID_H__
///
-/// This guid is used as a variable GUID (depending on implementation)
-/// for the capsule variable if the capsule pointer is passes through reset
-/// via a variable.
+/// This guid is used as a variable GUID for the capsule variable
+/// if the capsule pointer is passed through reset via a variable.
+///
+/// This guid is also used as a hob GUID for the capsule data
+/// when the capsule pointer is passed from PEI phase to DXE phase.
///
#define EFI_CAPSULE_VENDOR_GUID \
{ 0x711C703F, 0xC285, 0x4B10, { 0xA3, 0xB0, 0x36, 0xEC, 0xBD, 0x3C, 0x8B, 0xE2 } }
@@ -30,14 +33,14 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. ///
#define EFI_CAPSULE_VARIABLE_NAME L"CapsuleUpdateData"
-extern EFI_GUID gEfiCapsuleVendorGuid;
-
///
/// Data structure of capsule guid hob entry
///
typedef struct {
- EFI_PHYSICAL_ADDRESS BaseAddress; /// Capsule data start address
- UINT32 Length; /// Length of capsule data.
+ EFI_PHYSICAL_ADDRESS BaseAddress; ///> Capsule data start address
+ UINT32 Length; ///> Length of capsule data.
} CAPSULE_HOB_INFO;
+extern EFI_GUID gEfiCapsuleVendorGuid;
+
#endif // #ifndef _EFI_CAPSULE_VENDOR_GUID_H_
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