/** @file
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Protocol used for specifying platform related Silicon information and policy setting.
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Copyright (c) 2019 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 _SI_POLICY_PROTOCOL_H_
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#define _SI_POLICY_PROTOCOL_H_
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#include <IndustryStandard/Hsti.h>
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//
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// DXE_SI_POLICY_PROTOCOL revisions
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//
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#define DXE_SI_POLICY_PROTOCOL_REVISION 2
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extern EFI_GUID gDxeSiPolicyProtocolGuid;
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#pragma pack (push,1)
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/**
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The protocol allows the platform code to publish a set of configuration information that the
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Silicon drivers will use to configure the processor in the DXE phase.
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This Policy Protocol needs to be initialized for Silicon configuration.
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@note The Protocol has to be published before processor DXE drivers are dispatched.
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**/
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typedef struct {
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/**
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This member specifies the revision of the Si Policy protocol. This field is used to indicate backward
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compatible changes to the protocol. Any such changes to this protocol will result in an update in the revision number.
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<b>Revision 1</b>:
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- Initial version
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<b>Revision 2</b>:
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- Added SmbiosOemTypeFirmwareVersionInfo to determines the SMBIOS OEM type
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**/
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UINT8 Revision;
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/**
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SmbiosOemTypeFirmwareVersionInfo determines the SMBIOS OEM type (0x80 to 0xFF) defined in SMBIOS,
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values 0-0x7F will be treated as disable FVI reporting.
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FVI structure uses it as SMBIOS OEM type to provide version information.
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**/
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UINT8 SmbiosOemTypeFirmwareVersionInfo;
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UINT8 ReservedByte[6]; ///< Reserved bytes, align to multiple 8.
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/**
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This member describes a pointer to Hsti results from previous boot. In order to mitigate the large performance cost
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of performing all of the platform security tests on each boot, we can save the results across boots and retrieve
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and point this policy to them prior to the launch of HstiSiliconDxe. Logic should be implemented to not populate this
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upon major platform changes (i.e changes to setup option or platform hw)to ensure that results accurately reflect the
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configuration of the platform.
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**/
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ADAPTER_INFO_PLATFORM_SECURITY *Hsti; ///< This is a pointer to Hsti results from previous boot
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UINTN HstiSize; ///< Size of results, if setting Hsti policy to point to previous results
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} DXE_SI_POLICY_PROTOCOL;
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#pragma pack (pop)
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#endif
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