e5efcf8be8
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the UefiPayloadPkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Ray Ni <ray.ni@intel.com>
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/** @file
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This file defines the SMM S3 communication hob structure.
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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 PAYLOAD_S3_COMMUNICATION_GUID_H_
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#define PAYLOAD_S3_COMMUNICATION_GUID_H_
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extern EFI_GUID gS3CommunicationGuid;
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#pragma pack(1)
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typedef struct {
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EFI_SMRAM_DESCRIPTOR CommBuffer;
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BOOLEAN PldAcpiS3Enable;
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} PLD_S3_COMMUNICATION;
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///
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/// The information below is used for communication between bootloader and payload.
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/// It is used to save/store some registers in S3 path
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///
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/// This region exists only when gEfiAcpiVariableGuid HOB exist.
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/// when PLD_S3_INFO.PldAcpiS3Enable is false, the communication buffer is defined as below.
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///
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typedef struct {
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UINT32 ApicId;
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UINT32 SmmBase;
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} CPU_SMMBASE;
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typedef struct {
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UINT8 SwSmiData;
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UINT8 SwSmiTriggerValue;
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UINT16 Reserved;
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UINT32 CpuCount;
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CPU_SMMBASE SmmBase[0];
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} SMM_S3_INFO;
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//
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// Payload would save this structure to S3 communication area in normal boot.
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// In S3 path, bootloader need restore SMM base and writie IO port 0xB2 with SwSmiTriggerValue
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// to trigger SMI to let payload to restore S3.
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//
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typedef struct {
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EFI_HOB_GUID_TYPE Header;
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SMM_S3_INFO S3Info;
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} PLD_TO_BL_SMM_INFO;
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#pragma pack()
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#endif
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