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Add SMM Variable implementation.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11151 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
gdong1
2010-12-10 09:27:54 +00:00
parent d3b4af2bca
commit 8a2d49964e
24 changed files with 3914 additions and 1334 deletions
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86
MdeModulePkg/Include/Guid/VariableFormat.h
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@@ -157,4 +157,90 @@ struct _VARIABLE_INFO_ENTRY {
BOOLEAN Volatile; ///< TRUE if volatile, FALSE if non-volatile.
};
//
// This structure is used for SMM variable. the collected statistics data is saved in SMRAM. It can be got from
// SMI handler. The communication buffer should be:
// EFI_SMM_COMMUNICATE_HEADER + SMM_VARIABLE_COMMUNICATE_HEADER + payload.
//
typedef struct {
UINTN Function;
EFI_STATUS ReturnStatus;
UINT8 Data[1];
} SMM_VARIABLE_COMMUNICATE_HEADER;
//
// The payload for this function is SMM_VARIABLE_COMMUNICATE_ACCESS_VARIABLE.
//
#define SMM_VARIABLE_FUNCTION_GET_VARIABLE 1
//
// The payload for this function is SMM_VARIABLE_COMMUNICATE_GET_NEXT_VARIABLE_NAME.
//
#define SMM_VARIABLE_FUNCTION_GET_NEXT_VARIABLE_NAME 2
//
// The payload for this function is SMM_VARIABLE_COMMUNICATE_ACCESS_VARIABLE.
//
#define SMM_VARIABLE_FUNCTION_SET_VARIABLE 3
//
// The payload for this function is SMM_VARIABLE_COMMUNICATE_QUERY_VARIABLE_INFO.
//
#define SMM_VARIABLE_FUNCTION_QUERY_VARIABLE_INFO 4
//
// It is a notify event, no extra payload for this function.
//
#define SMM_VARIABLE_FUNCTION_READY_TO_BOOT 5
//
// It is a notify event, no extra payload for this function.
//
#define SMM_VARIABLE_FUNCTION_EXIT_BOOT_SERVICE 6
//
// The payload for this function is VARIABLE_INFO_ENTRY. The GUID in EFI_SMM_COMMUNICATE_HEADER
// is gEfiSmmVariableProtocolGuid.
//
#define SMM_VARIABLE_FUNCTION_GET_STATISTICS 7
///
/// Size of SMM communicate header, without including the payload.
///
#define SMM_COMMUNICATE_HEADER_SIZE (OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data))
///
/// Size of SMM variable communicate header, without including the payload.
///
#define SMM_VARIABLE_COMMUNICATE_HEADER_SIZE (OFFSET_OF (SMM_VARIABLE_COMMUNICATE_HEADER, Data))
///
/// This structure is used to communicate with SMI handler by SetVariable and GetVariable.
///
typedef struct {
EFI_GUID Guid;
UINTN DataSize;
UINTN NameSize;
UINT32 Attributes;
CHAR16 Name[1];
} SMM_VARIABLE_COMMUNICATE_ACCESS_VARIABLE;
///
/// This structure is used to communicate with SMI handler by GetNextVariableName.
///
typedef struct {
EFI_GUID Guid;
UINTN NameSize;
CHAR16 Name[1];
} SMM_VARIABLE_COMMUNICATE_GET_NEXT_VARIABLE_NAME;
///
/// This structure is used to communicate with SMI handler by QueryVariableInfo.
///
typedef struct {
UINT64 MaximumVariableStorageSize;
UINT64 RemainingVariableStorageSize;
UINT64 MaximumVariableSize;
UINT32 Attributes;
} SMM_VARIABLE_COMMUNICATE_QUERY_VARIABLE_INFO;
///
/// This structure is used to communicate with SMI handler to get variable statistics information.
///
typedef VARIABLE_INFO_ENTRY SMM_VARIABLE_COMMUNICATE_VARIABLE_INFO_ENTRY;
#endif // _EFI_VARIABLE_H_