AmdSev.c File Reference

#include "MpLib.h"

Go to the source code of this file.

Functions
VOID	SevSnpCreateSaveArea (IN CPU_MP_DATA *CpuMpData, IN CPU_AP_DATA *CpuData, UINT32 ApicId)
VOID	SevSnpCreateAP (IN CPU_MP_DATA *CpuMpData, IN INTN ProcessorNumber)
UINT32	SevSnpRmpAdjust (IN EFI_PHYSICAL_ADDRESS PageAddress, IN BOOLEAN VmsaPage)

Detailed Description

AMD SEV helper function.

Copyright (c) 2021, AMD Incorporated. All rights reserved.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file AmdSev.c.

Function Documentation

SevSnpCreateAP()

VOID SevSnpCreateAP	(	IN CPU_MP_DATA *	CpuMpData,
		IN INTN	ProcessorNumber
	)

Create SEV-SNP APs.

Parameters

[in]	CpuMpData	Pointer to CPU MP Data
[in]	ProcessorNumber	The handle number of specified processor (-1 for all APs)

Definition at line 41 of file AmdSev.c.

SevSnpCreateSaveArea()

VOID SevSnpCreateSaveArea	(	IN CPU_MP_DATA *	CpuMpData,
		IN CPU_AP_DATA *	CpuData,
		UINT32	ApicId
	)

Create an SEV-SNP AP save area (VMSA) for use in running the vCPU.

Parameters

[in]	CpuMpData	Pointer to CPU MP Data
[in]	CpuData	Pointer to CPU AP Data
[in]	ApicId	APIC ID of the vCPU

Definition at line 21 of file AmdSev.c.

SevSnpRmpAdjust()

UINT32 SevSnpRmpAdjust	(	IN EFI_PHYSICAL_ADDRESS	PageAddress,
		IN BOOLEAN	VmsaPage
	)

Issue RMPADJUST to adjust the VMSA attribute of an SEV-SNP page.

Parameters

[in]	PageAddress
[in]	VmsaPage

Returns

RMPADJUST return value

Definition at line 61 of file AmdSev.c.