mirror of https://github.com/acidanthera/audk.git
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/** @file
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The definition for VTD information PPI.
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This is a lightweight VTd information report in PEI phase.
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Copyright (c) 2017, 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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#ifndef __VTD_INFO_PPI_H__
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#define __VTD_INFO_PPI_H__
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#include <IndustryStandard/DmaRemappingReportingTable.h>
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#define EDKII_VTD_INFO_PPI_GUID \
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{ \
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0x8a59fcb3, 0xf191, 0x400c, { 0x97, 0x67, 0x67, 0xaf, 0x2b, 0x25, 0x68, 0x4a } \
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}
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//
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// VTD info PPI just use same data structure as DMAR table.
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//
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// The reported information must include what is needed in PEI phase, e.g.
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// the VTd engine (such as DRHD)
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// the reserved DMA address in PEI for eary graphic (such as RMRR for graphic UMA)
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//
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// The reported information can be and might be a subset of full DMAR table, e.g.
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// if some data is not avaiable (such as ANDD),
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// if some data is not needed (such as RMRR for legacy USB).
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//
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typedef EFI_ACPI_DMAR_HEADER EDKII_VTD_INFO_PPI;
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extern EFI_GUID gEdkiiVTdInfoPpiGuid;
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#endif
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