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/** @file
AMD SEV helper function.
Copyright (c) 2021, AMD Incorporated. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "MpLib.h"
/**
Create an SEV-SNP AP save area (VMSA) for use in running the vCPU.
@param[in] CpuMpData Pointer to CPU MP Data
@param[in] CpuData Pointer to CPU AP Data
@param[in] ApicId APIC ID of the vCPU
**/
VOID
SevSnpCreateSaveArea (
IN CPU_MP_DATA *CpuMpData,
IN CPU_AP_DATA *CpuData,
UINT32 ApicId
)
{
//
// SEV-SNP is not support on 32-bit build.
//
ASSERT (FALSE);
}
/**
Create SEV-SNP APs.
@param[in] CpuMpData Pointer to CPU MP Data
@param[in] ProcessorNumber The handle number of specified processor
(-1 for all APs)
**/
VOID
SevSnpCreateAP (
IN CPU_MP_DATA *CpuMpData,
IN INTN ProcessorNumber
)
{
//
// SEV-SNP is not support on 32-bit build.
//
ASSERT (FALSE);
}
/**
Issue RMPADJUST to adjust the VMSA attribute of an SEV-SNP page.
@param[in] PageAddress
@param[in] VmsaPage
@return RMPADJUST return value
**/
UINT32
SevSnpRmpAdjust (
IN EFI_PHYSICAL_ADDRESS PageAddress,
IN BOOLEAN VmsaPage
)
{
//
// RMPADJUST is not supported in 32-bit mode
//
return RETURN_UNSUPPORTED;
}
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