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70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/** @file
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This file declares Vector Handoff Info PPI that describes an array of
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interrupt and/or exception vectors that are in use and need to persist.
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This is an optional PPI that may be produced by SEC. If present, it provides
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a description of the interrupt and/or exception vectors that were established
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in the SEC Phase and need to persist into PEI and DXE.
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Copyright (c) 2013 - 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 introduced in PI Version 1.2.1.
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**/
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#ifndef __VECTOR_HANDOFF_INFO_H__
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#define __VECTOR_HANDOFF_INFO_H__
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///
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/// NOTE: EFI_PEI_VECTOR_HANDOFF_INFO_PPI_GUID can also be used in the PEI Phase
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/// to build a GUIDed HOB that contains an array of EFI_VECTOR_HANDOFF_INFO.
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///
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#define EFI_PEI_VECTOR_HANDOFF_INFO_PPI_GUID \
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{ 0x3cd652b4, 0x6d33, 0x4dce, { 0x89, 0xdb, 0x83, 0xdf, 0x97, 0x66, 0xfc, 0xca }}
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///
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/// Vector Handoff Info Attributes
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///@{
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#define EFI_VECTOR_HANDOFF_DO_NOT_HOOK 0x00000000
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#define EFI_VECTOR_HANDOFF_HOOK_BEFORE 0x00000001
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#define EFI_VECTOR_HANDOFF_HOOK_AFTER 0x00000002
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#define EFI_VECTOR_HANDOFF_LAST_ENTRY 0x80000000
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///@}
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///
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/// EFI_VECTOR_HANDOFF_INFO entries that describes the interrupt and/or
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/// exception vectors in use in the PEI Phase.
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///
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typedef struct {
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//
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// The interrupt or exception vector that is in use and must be preserved.
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//
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UINT32 VectorNumber;
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//
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// A bitmask that describes the attributes ofthe interrupt or exception vector.
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//
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UINT32 Attribute;
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//
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// The GUID identifies the party who created the entry. For the
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// EFI_VECTOR_HANDOFF_DO_NOT_HOOK case, this establishes the single owner.
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//
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EFI_GUID Owner;
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} EFI_VECTOR_HANDOFF_INFO;
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///
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/// Provides a description of the interrupt and/or exception vectors that
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/// were established in the SEC Phase and need to persist into PEI and DXE.
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///
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typedef struct _EFI_PEI_VECTOR_HANDOFF_INFO_PPI {
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//
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// Pointer to an array of interrupt and /or exception vectors.
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//
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EFI_VECTOR_HANDOFF_INFO *Info;
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} EFI_PEI_VECTOR_HANDOFF_INFO_PPI;
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extern EFI_GUID gEfiVectorHandoffInfoPpiGuid;
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#endif
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