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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>
58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/** @file
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MM Services Table Library.
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Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2018, Linaro, Ltd. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <PiMm.h>
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#include <Protocol/MmBase.h>
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#include <Library/MmServicesTableLib.h>
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#include <Library/DebugLib.h>
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EFI_MM_SYSTEM_TABLE *gMmst = NULL;
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/**
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The constructor function caches the pointer of the MM Services Table.
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@param ImageHandle The firmware allocated handle for the EFI image.
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@param SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
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**/
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EFI_STATUS
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EFIAPI
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MmServicesTableLibConstructor (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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EFI_MM_BASE_PROTOCOL *InternalMmBase;
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InternalMmBase = NULL;
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//
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// Retrieve MM Base Protocol, Do not use gBS from UefiBootServicesTableLib on purpose
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// to prevent inclusion of gBS, gST, and gImageHandle from SMM Drivers unless the
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// MM driver explicity declares that dependency.
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//
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Status = SystemTable->BootServices->LocateProtocol (
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&gEfiMmBaseProtocolGuid,
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NULL,
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(VOID **)&InternalMmBase
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);
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ASSERT_EFI_ERROR (Status);
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ASSERT (InternalMmBase != NULL);
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//
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// We are in MM, retrieve the pointer to MM System Table
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//
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InternalMmBase->GetMmstLocation (InternalMmBase, &gMmst);
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ASSERT (gMmst != NULL);
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return EFI_SUCCESS;
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}
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