2 The definition for VTD information PPI.
4 This is a lightweight VTd information report in PEI phase.
6 Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
7 SPDX-License-Identifier: BSD-2-Clause-Patent
11 #ifndef __VTD_INFO_PPI_H__
12 #define __VTD_INFO_PPI_H__
14 #include <IndustryStandard/DmaRemappingReportingTable.h>
16 #define EDKII_VTD_INFO_PPI_GUID \
18 0x8a59fcb3, 0xf191, 0x400c, { 0x97, 0x67, 0x67, 0xaf, 0x2b, 0x25, 0x68, 0x4a } \
22 // VTD info PPI just use same data structure as DMAR table.
24 // The reported information must include what is needed in PEI phase, e.g.
25 // the VTd engine (such as DRHD)
26 // the reserved DMA address in PEI for eary graphic (such as RMRR for graphic UMA)
28 // The reported information can be and might be a subset of full DMAR table, e.g.
29 // if some data is not avaiable (such as ANDD),
30 // if some data is not needed (such as RMRR for legacy USB).
32 typedef EFI_ACPI_DMAR_HEADER EDKII_VTD_INFO_PPI
;
34 extern EFI_GUID gEdkiiVTdInfoPpiGuid
;