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82 lines
3.3 KiB
C
82 lines
3.3 KiB
C
/** @file
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This file declares Recovery Module PPI. This PPI is used to find and load the
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recovery files.
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A module that produces this PPI has many roles and is responsible for the following:
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-# Calling the driver recovery PPI EFI_PEI_DEVICE_RECOVERY_MODULE_PPI.
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GetNumberRecoveryCapsules() to determine if one or more DXE recovery
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entities exist.
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-# If no capsules exist, then performing appropriate error handling.
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-# Allocating a buffer of MaxRecoveryCapsuleSize as determined by
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EFI_PEI_DEVICE_RECOVERY_MODULE_PPI.GetRecoveryCapsuleInfo() or
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larger.
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-# Determining the policy in which DXE recovery capsules are loaded.
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-# Calling the driver recovery PPI EFI_PEI_DEVICE_RECOVERY_MODULE_PPI.
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LoadRecoveryCapsule() for capsule number x.
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-# If the load failed, performing appropriate error handling.
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-# Performing security checks for a loaded DXE recovery capsule.
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-# If the security checks failed, then logging the failure in a data HOB.
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-# If the security checks failed, then determining the next
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EFI_PEI_DEVICE_RECOVERY_MODULE_PPI.LoadRecoveryCapsule()capsule number;
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otherwise, go to step 11.
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-# If more DXE recovery capsules exist, then go to step 5; otherwise, perform
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error handling.
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-# Decomposing the capsule loaded by EFI_PEI_DEVICE_RECOVERY_MODULE_PPI.
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LoadRecoveryCapsule() into its components. It is assumed that the path
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parameters are redundant for recovery and Setup parameters are either
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redundant or canned.
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-# Invalidating all HOB entries for updateable firmware volume entries.
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This invalidation prevents possible errant drivers from being executed.
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-# Updating the HOB table with the recovery DXE firmware volume information
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generated from the capsule decomposition.
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-# Returning to the PEI Dispatcher.
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Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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@par Revision Reference:
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This PPI is defined in UEFI Platform Initialization Specification 1.2 Errata B Volume 1:
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Pre-EFI Initalization Core Interface
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**/
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#ifndef __PEI_RECOVERY_MODULE_PPI_H__
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#define __PEI_RECOVERY_MODULE_PPI_H__
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#define EFI_PEI_RECOVERY_MODULE_PPI_GUID \
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{ \
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0xFB6D9542, 0x612D, 0x4f45, {0x87, 0x2F, 0x5C, 0xFF, 0x52, 0xE9, 0x3D, 0xCF } \
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}
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typedef struct _EFI_PEI_RECOVERY_MODULE_PPI EFI_PEI_RECOVERY_MODULE_PPI;
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/**
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Loads a DXE capsule from some media into memory and updates the HOB table
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with the DXE firmware volume information.
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@param PeiServices General-purpose services that are available to every PEIM.
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@param This Indicates the EFI_PEI_RECOVERY_MODULE_PPI instance.
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@retval EFI_SUCCESS The capsule was loaded correctly.
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@retval EFI_DEVICE_ERROR A device error occurred.
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@retval EFI_NOT_FOUND A recovery DXE capsule cannot be found.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_PEI_LOAD_RECOVERY_CAPSULE)(
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IN EFI_PEI_SERVICES **PeiServices,
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IN EFI_PEI_RECOVERY_MODULE_PPI *This
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);
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///
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/// Finds and loads the recovery files.
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///
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struct _EFI_PEI_RECOVERY_MODULE_PPI {
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EFI_PEI_LOAD_RECOVERY_CAPSULE LoadRecoveryCapsule; ///< Loads a DXE binary capsule into memory.
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};
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extern EFI_GUID gEfiPeiRecoveryModulePpiGuid;
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#endif
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