/** @file
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The GUID definition for Vtd Data Hob
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Copyright (c) 2021, 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_DATA_HOB_H_
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#define _VTD_DATA_HOB_H_
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#include <Library/VtdInfoLib.h>
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#include <Base.h>
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extern EFI_GUID gVtdDataHobGuid;
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#pragma pack (push,1)
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///
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/// The data elements should be initialized by a Platform Module.
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/// The data structure is for VT-d driver initialization
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///
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typedef struct {
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EFI_HOB_GUID_TYPE EfiHobGuidType; ///< GUID Hob type structure for gVtdDataHobGuid
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BOOLEAN VtdDisable; ///< 1 = Avoids programming Vtd bars, Vtd overrides and DMAR table
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UINT32 BaseAddress[VTD_ENGINE_NUMBER]; ///< This field is used to describe the base addresses for VT-d function
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BOOLEAN X2ApicOptOut; ///< This field is used to enable the X2APIC_OPT_OUT bit in the DMAR table. <b>1=Enable/Set</b> and 0=Disable/Clear
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BOOLEAN DmaControlGuarantee; ///< This field is used to enable the DMA_CONTROL_GUARANTEE bit in the DMAR table. <b>1=Enable/Set</b> and 0=Disable/Clear
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BOOLEAN InterruptRemappingSupport; ///< This field is used to indicate Interrupt Remapping supported or not
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UINT32 DmaBufferBase; ///< Iommu PEI DMA buffer base in low memory region, in Mbytes units
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} VTD_DATA_HOB;
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#pragma pack (pop)
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#endif
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