#ifndef _SMM_ACCESS2_H_\r
#define _SMM_ACCESS2_H_\r
\r
-#define EFI_SMM_ACCESS2_PROTOCOL_GUID \\r
- { \\r
- 0xc2702b74, 0x800c, 0x4131, {0x87, 0x46, 0x8f, 0xb5, 0xb8, 0x9c, 0xe4, 0xac } \\r
- }\r
+#include <Protocol/MmAccess.h>\r
\r
+#define EFI_SMM_ACCESS2_PROTOCOL_GUID EFI_MM_ACCESS_PROTOCOL_GUID\r
\r
-typedef struct _EFI_SMM_ACCESS2_PROTOCOL EFI_SMM_ACCESS2_PROTOCOL;\r
+typedef EFI_MM_ACCESS_PROTOCOL EFI_SMM_ACCESS2_PROTOCOL;\r
\r
-/**\r
- Opens the SMRAM area to be accessible by a boot-service driver.\r
+typedef EFI_MM_OPEN EFI_SMM_OPEN2;\r
\r
- This function "opens" SMRAM so that it is visible while not inside of SMM. The function should \r
- return EFI_UNSUPPORTED if the hardware does not support hiding of SMRAM. The function \r
- should return EFI_DEVICE_ERROR if the SMRAM configuration is locked.\r
+typedef EFI_MM_CLOSE EFI_SMM_CLOSE2;\r
\r
- @param[in] This The EFI_SMM_ACCESS2_PROTOCOL instance.\r
-\r
- @retval EFI_SUCCESS The operation was successful.\r
- @retval EFI_UNSUPPORTED The system does not support opening and closing of SMRAM.\r
- @retval EFI_DEVICE_ERROR SMRAM cannot be opened, perhaps because it is locked.\r
-**/\r
-typedef\r
-EFI_STATUS\r
-(EFIAPI *EFI_SMM_OPEN2)(\r
- IN EFI_SMM_ACCESS2_PROTOCOL *This\r
- );\r
-\r
-/**\r
- Inhibits access to the SMRAM.\r
-\r
- This function "closes" SMRAM so that it is not visible while outside of SMM. The function should \r
- return EFI_UNSUPPORTED if the hardware does not support hiding of SMRAM.\r
-\r
- @param[in] This The EFI_SMM_ACCESS2_PROTOCOL instance.\r
-\r
- @retval EFI_SUCCESS The operation was successful.\r
- @retval EFI_UNSUPPORTED The system does not support opening and closing of SMRAM.\r
- @retval EFI_DEVICE_ERROR SMRAM cannot be closed.\r
-**/\r
-typedef\r
-EFI_STATUS\r
-(EFIAPI *EFI_SMM_CLOSE2)(\r
- IN EFI_SMM_ACCESS2_PROTOCOL *This\r
- );\r
-\r
-/**\r
- Inhibits access to the SMRAM.\r
-\r
- This function prohibits access to the SMRAM region. This function is usually implemented such \r
- that it is a write-once operation. \r
-\r
- @param[in] This The EFI_SMM_ACCESS2_PROTOCOL instance.\r
-\r
- @retval EFI_SUCCESS The device was successfully locked.\r
- @retval EFI_UNSUPPORTED The system does not support locking of SMRAM.\r
-**/\r
-typedef\r
-EFI_STATUS\r
-(EFIAPI *EFI_SMM_LOCK2)(\r
- IN EFI_SMM_ACCESS2_PROTOCOL *This\r
- );\r
-\r
-/**\r
- Queries the memory controller for the possible regions that will support SMRAM.\r
-\r
- @param[in] This The EFI_SMM_ACCESS2_PROTOCOL instance.\r
- @param[in,out] SmramMapSize A pointer to the size, in bytes, of the SmramMemoryMap buffer.\r
- @param[in,out] SmramMap A pointer to the buffer in which firmware places the current memory map.\r
-\r
- @retval EFI_SUCCESS The chipset supported the given resource.\r
- @retval EFI_BUFFER_TOO_SMALL The SmramMap parameter was too small. The current buffer size \r
- needed to hold the memory map is returned in SmramMapSize.\r
-**/\r
-typedef\r
-EFI_STATUS\r
-(EFIAPI *EFI_SMM_CAPABILITIES2)(\r
- IN CONST EFI_SMM_ACCESS2_PROTOCOL *This,\r
- IN OUT UINTN *SmramMapSize,\r
- IN OUT EFI_SMRAM_DESCRIPTOR *SmramMap\r
- );\r
-\r
-///\r
-/// EFI SMM Access2 Protocol is used to control the visibility of the SMRAM on the platform.\r
-/// It abstracts the location and characteristics of SMRAM. The platform should report all \r
-/// MMRAM via EFI_MM_ACCESS_PROTOCOL. The expectation is that the north bridge or memory \r
-/// controller would publish this protocol.\r
-/// \r
-struct _EFI_SMM_ACCESS2_PROTOCOL {\r
- EFI_SMM_OPEN2 Open;\r
- EFI_SMM_CLOSE2 Close;\r
- EFI_SMM_LOCK2 Lock;\r
- EFI_SMM_CAPABILITIES2 GetCapabilities;\r
- ///\r
- /// Indicates the current state of the SMRAM. Set to TRUE if SMRAM is locked.\r
- ///\r
- BOOLEAN LockState;\r
- ///\r
- /// Indicates the current state of the SMRAM. Set to TRUE if SMRAM is open.\r
- ///\r
- BOOLEAN OpenState;\r
-};\r
+typedef EFI_MM_LOCK EFI_SMM_LOCK2;\r
\r
+typedef EFI_MM_CAPABILITIES EFI_SMM_CAPABILITIES2;\r
extern EFI_GUID gEfiSmmAccess2ProtocolGuid;\r
\r
#endif\r
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