mirror of https://github.com/acidanthera/audk.git
71 lines
1.4 KiB
C
71 lines
1.4 KiB
C
/** @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;
|
|
}
|