diff options
| author | gdong1 <gdong1@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-12-10 09:27:54 +0000 |
|---|---|---|
| committer | gdong1 <gdong1@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-12-10 09:27:54 +0000 |
| commit | 8a2d49964e371b1715beb3225fde47edfcaa51ca (patch) | |
| tree | aea338b8c4f23b4909acb28389006ee7c543beec /MdeModulePkg/Include/Guid | |
| parent | d3b4af2bca5b70a870148f1358b6babae5d36c88 (diff) | |
| download | edk2-platforms-8a2d49964e371b1715beb3225fde47edfcaa51ca.tar.xz | |
Add SMM Variable implementation.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11151 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Include/Guid')
| -rw-r--r-- | MdeModulePkg/Include/Guid/VariableFormat.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/MdeModulePkg/Include/Guid/VariableFormat.h b/MdeModulePkg/Include/Guid/VariableFormat.h index 2276262a3b..0db3a22f34 100644 --- a/MdeModulePkg/Include/Guid/VariableFormat.h +++ b/MdeModulePkg/Include/Guid/VariableFormat.h @@ -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_
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