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MdePkg: Reference new definitions for Management Mode.

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In PI 1.5 version, system management mode name(SMM) has been changed
to Management Mode(MM). It impacts the current code which still use
SMM/Smram/SMI keywords. This patch update the original files which
related to old SMM modules, also keep the compatible with old SMM
related drivers.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Eric Dong
2017-08-28 14:35:08 +08:00
parent 07c6a47e70
commit 2f208e59e4
23 changed files with 248 additions and 1351 deletions
Download Patch File Download Diff File Expand all files Collapse all files

103
MdePkg/Include/Protocol/SmmAccess2.h
View File

@@ -25,108 +25,19 @@
#ifndef _SMM_ACCESS2_H_
#define _SMM_ACCESS2_H_
#define EFI_SMM_ACCESS2_PROTOCOL_GUID \
{ \
0xc2702b74, 0x800c, 0x4131, {0x87, 0x46, 0x8f, 0xb5, 0xb8, 0x9c, 0xe4, 0xac } \
}
#include <Protocol/MmAccess.h>
#define EFI_SMM_ACCESS2_PROTOCOL_GUID EFI_MM_ACCESS_PROTOCOL_GUID
typedef struct _EFI_SMM_ACCESS2_PROTOCOL EFI_SMM_ACCESS2_PROTOCOL;
typedef EFI_MM_ACCESS_PROTOCOL EFI_SMM_ACCESS2_PROTOCOL;
/**
Opens the SMRAM area to be accessible by a boot-service driver.
typedef EFI_MM_OPEN EFI_SMM_OPEN2;
This function "opens" SMRAM so that it is visible while not inside of SMM. The function should
return EFI_UNSUPPORTED if the hardware does not support hiding of SMRAM. The function
should return EFI_DEVICE_ERROR if the SMRAM configuration is locked.
typedef EFI_MM_CLOSE EFI_SMM_CLOSE2;
@param[in] This The EFI_SMM_ACCESS2_PROTOCOL instance.
@retval EFI_SUCCESS The operation was successful.
@retval EFI_UNSUPPORTED The system does not support opening and closing of SMRAM.
@retval EFI_DEVICE_ERROR SMRAM cannot be opened, perhaps because it is locked.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SMM_OPEN2)(
IN EFI_SMM_ACCESS2_PROTOCOL *This
);
/**
Inhibits access to the SMRAM.
This function "closes" SMRAM so that it is not visible while outside of SMM. The function should
return EFI_UNSUPPORTED if the hardware does not support hiding of SMRAM.
@param[in] This The EFI_SMM_ACCESS2_PROTOCOL instance.
@retval EFI_SUCCESS The operation was successful.
@retval EFI_UNSUPPORTED The system does not support opening and closing of SMRAM.
@retval EFI_DEVICE_ERROR SMRAM cannot be closed.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SMM_CLOSE2)(
IN EFI_SMM_ACCESS2_PROTOCOL *This
);
/**
Inhibits access to the SMRAM.
This function prohibits access to the SMRAM region. This function is usually implemented such
that it is a write-once operation.
@param[in] This The EFI_SMM_ACCESS2_PROTOCOL instance.
@retval EFI_SUCCESS The device was successfully locked.
@retval EFI_UNSUPPORTED The system does not support locking of SMRAM.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SMM_LOCK2)(
IN EFI_SMM_ACCESS2_PROTOCOL *This
);
/**
Queries the memory controller for the possible regions that will support SMRAM.
@param[in] This The EFI_SMM_ACCESS2_PROTOCOL instance.
@param[in,out] SmramMapSize A pointer to the size, in bytes, of the SmramMemoryMap buffer.
@param[in,out] SmramMap A pointer to the buffer in which firmware places the current memory map.
@retval EFI_SUCCESS The chipset supported the given resource.
@retval EFI_BUFFER_TOO_SMALL The SmramMap parameter was too small. The current buffer size
needed to hold the memory map is returned in SmramMapSize.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SMM_CAPABILITIES2)(
IN CONST EFI_SMM_ACCESS2_PROTOCOL *This,
IN OUT UINTN *SmramMapSize,
IN OUT EFI_SMRAM_DESCRIPTOR *SmramMap
);
///
/// EFI SMM Access2 Protocol is used to control the visibility of the SMRAM on the platform.
/// It abstracts the location and characteristics of SMRAM. The platform should report all
/// MMRAM via EFI_MM_ACCESS_PROTOCOL. The expectation is that the north bridge or memory
/// controller would publish this protocol.
///
struct _EFI_SMM_ACCESS2_PROTOCOL {
EFI_SMM_OPEN2 Open;
EFI_SMM_CLOSE2 Close;
EFI_SMM_LOCK2 Lock;
EFI_SMM_CAPABILITIES2 GetCapabilities;
///
/// Indicates the current state of the SMRAM. Set to TRUE if SMRAM is locked.
///
BOOLEAN LockState;
///
/// Indicates the current state of the SMRAM. Set to TRUE if SMRAM is open.
///
BOOLEAN OpenState;
};
typedef EFI_MM_LOCK EFI_SMM_LOCK2;
typedef EFI_MM_CAPABILITIES EFI_SMM_CAPABILITIES2;
extern EFI_GUID gEfiSmmAccess2ProtocolGuid;
#endif