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69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
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/** @file
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This file declares FindFv PPI, which is used to locate FVs that contain PEIMs in PEI.
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Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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@par Revision Reference:
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This PPI is defined in PEI CIS
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Version 0.91.
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**/
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#ifndef _FIND_FV_H_
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#define _FIND_FV_H_
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///
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/// Inconsistent with specification here:
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/// GUID value format has been changed to the standard GUID format.
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///
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#define EFI_PEI_FIND_FV_PPI_GUID \
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{ \
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0x36164812, 0xa023, 0x44e5, {0xbd, 0x85, 0x5, 0xbf, 0x3c, 0x77, 0x0, 0xaa } \
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}
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typedef struct _EFI_PEI_FIND_FV_PPI EFI_PEI_FIND_FV_PPI;
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/**
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This interface returns the base address of the firmware volume whose index
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was passed in FvNumber. Once this function reports a firmware volume
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index/base address pair, that index/address pairing must continue throughout PEI.
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@param PeiServices The pointer to the PEI Services Table.
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@param This Interface pointer that implements the Find FV service.
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@param FvNumber The index of the firmware volume to locate.
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@param FvAddress The address of the volume to discover.
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@retval EFI_SUCCESS An additional firmware volume was found.
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@retval EFI_OUT_OF_RESOURCES There are no firmware volumes for the given FvNumber.
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@retval EFI_INVALID_PARAMETER *FvAddress is NULL.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_PEI_FIND_FV_FINDFV)(
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IN EFI_PEI_FIND_FV_PPI *This,
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IN EFI_PEI_SERVICES **PeiServices,
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IN UINT8 *FvNumber,
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IN OUT EFI_FIRMWARE_VOLUME_HEADER **FVAddress
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);
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/**
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Hardware mechanisms for locating FVs in a platform vary widely.
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EFI_PEI_FIND_FV_PPI serves to abstract this variation so that the
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PEI Foundation can remain standard across a wide variety of platforms.
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**/
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struct _EFI_PEI_FIND_FV_PPI {
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EFI_PEI_FIND_FV_FINDFV FindFv; ///< Service that abstracts the location of additional firmware volumes.
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};
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extern EFI_GUID gEfiFindFvPpiGuid;
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#endif
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