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96 lines
3.8 KiB
C
96 lines
3.8 KiB
C
/** @file
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Entry point to a the PEI Core.
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Copyright (c) 2006 - 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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#include <PiPei.h>
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//
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// The Library classes this module produced
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//
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#include <Library/PeiCoreEntryPoint.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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/**
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The entry point of PE/COFF Image for the PEI Core.
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This function is the entry point for the PEI Foundation, which allows the SEC phase
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to pass information about the stack, temporary RAM and the Boot Firmware Volume.
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In addition, it also allows the SEC phase to pass services and data forward for use
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during the PEI phase in the form of one or more PPIs.
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There is no limit to the number of additional PPIs that can be passed from SEC into
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the PEI Foundation. As part of its initialization phase, the PEI Foundation will add
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these SEC-hosted PPIs to its PPI database such that both the PEI Foundation and any
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modules can leverage the associated service calls and/or code in these early PPIs.
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This function is required to call ProcessModuleEntryPointList() with the Context
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parameter set to NULL. ProcessModuleEntryPoint() is never expected to return.
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The PEI Core is responsible for calling ProcessLibraryConstructorList() as soon as
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the PEI Services Table and the file handle for the PEI Core itself have been established.
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If ProcessModuleEntryPointList() returns, then ASSERT() and halt the system.
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@param SecCoreData Points to a data structure containing information about the
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PEI core's operating environment, such as the size and
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location of temporary RAM, the stack location and the BFV
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location.
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@param PpiList Points to a list of one or more PPI descriptors to be
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installed initially by the PEI core. An empty PPI list
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consists of a single descriptor with the end-tag
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EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST.
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As part of its initialization phase, the PEI Foundation will
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add these SEC-hosted PPIs to its PPI database, such that both
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the PEI Foundation and any modules can leverage the associated
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service calls and/or code in these early PPIs.
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**/
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VOID
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EFIAPI
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_ModuleEntryPoint(
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IN CONST EFI_SEC_PEI_HAND_OFF *SecCoreData,
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IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList
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)
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{
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ProcessModuleEntryPointList (SecCoreData, PpiList, NULL);
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//
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// Should never return
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//
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ASSERT(FALSE);
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CpuDeadLoop ();
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}
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/**
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Required by the EBC compiler and identical in functionality to _ModuleEntryPoint().
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This function is required to call _ModuleEntryPoint() passing in SecCoreData and PpiList.
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@param SecCoreData Points to a data structure containing information about the PEI core's
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operating environment, such as the size and location of temporary RAM,
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the stack location and the BFV location.
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@param PpiList Points to a list of one or more PPI descriptors to be installed
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initially by the PEI core. An empty PPI list consists of
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a single descriptor with the end-tag
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EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST.
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As part of its initialization phase, the PEI Foundation will
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add these SEC-hosted PPIs to its PPI database, such that both
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the PEI Foundationand any modules can leverage the associated
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service calls and/or code in these early PPIs.
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**/
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VOID
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EFIAPI
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EfiMain (
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IN CONST EFI_SEC_PEI_HAND_OFF *SecCoreData,
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IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList
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)
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{
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_ModuleEntryPoint (SecCoreData, PpiList);
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}
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