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9344f09215
https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/** @file
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EFI SMM Access2 Protocol as defined in the PI 1.2 specification.
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This protocol is used to control the visibility of the SMRAM on the platform.
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It abstracts the location and characteristics of SMRAM. The expectation is
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that the north bridge or memory controller would publish this protocol.
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The principal functionality found in the memory controller includes the following:
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- Exposing the SMRAM to all non-SMM agents, or the "open" state
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- Shrouding the SMRAM to all but the SMM agents, or the "closed" state
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- Preserving the system integrity, or "locking" the SMRAM, such that the settings cannot be
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perturbed by either boot service or runtime agents
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Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _SMM_ACCESS2_H_
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#define _SMM_ACCESS2_H_
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#include <Protocol/MmAccess.h>
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#define EFI_SMM_ACCESS2_PROTOCOL_GUID EFI_MM_ACCESS_PROTOCOL_GUID
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typedef EFI_MM_ACCESS_PROTOCOL EFI_SMM_ACCESS2_PROTOCOL;
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typedef EFI_MM_OPEN EFI_SMM_OPEN2;
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typedef EFI_MM_CLOSE EFI_SMM_CLOSE2;
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typedef EFI_MM_LOCK EFI_SMM_LOCK2;
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typedef EFI_MM_CAPABILITIES EFI_SMM_CAPABILITIES2;
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extern EFI_GUID gEfiSmmAccess2ProtocolGuid;
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#endif
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