/** @file
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VT-d policy definitions.
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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_CONFIG_H_
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#define _VTD_CONFIG_H_
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#pragma pack(push, 1)
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#define SA_VTD_ENGINE_NUMBER 2
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#define VTD_CONFIG_REVISION 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\n
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<b>Revision 1</b>:
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- Initial version.
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**/
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typedef struct {
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CONFIG_BLOCK_HEADER Header; ///< Offset 0-27 Config Block Header
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/**
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Offset 28:0 :
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VT-D Support can be verified by reading CAP ID register as expalined in BIOS Spec.
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This policy is for debug purpose only.
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If VT-D is not supported, all other policies in this config block will be ignored.
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<b>0 = To use Vt-d</b>;
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1 = Avoids programming Vtd bars, Vtd overrides and DMAR table.
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**/
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UINT32 VtdDisable : 1;
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UINT32 X2ApicOptOut : 1; ///< Offset 28:1 :This field is used to enable the X2APIC_OPT_OUT bit in the DMAR table. 1=Enable/Set and <b>0=Disable/Clear</b>
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UINT32 RsvdBits0 : 30; ///< Offset 28:2 :Reserved bits for future use
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UINT32 BaseAddress[SA_VTD_ENGINE_NUMBER]; ///< Offset 32: This field is used to describe the base addresses for VT-d function: <b>BaseAddress[0]=0xFED90000, BaseAddress[0]=0xFED91000 </b>
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} VTD_CONFIG;
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#pragma pack(pop)
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#endif // _VTD_CONFIG_H_
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