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/** @file
Implementation of Fsp PCH Policy Initialization.
Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <PeiFspPolicyInitLib.h>
#include <Ppi/CpuPolicy.h>
#include <Ppi/ReadOnlyVariable2.h>
#include <Library/CpuPolicyLib.h>
/**
Performs FSP CPU PEI Policy initialization.
@param[in, out] FspmUpd Pointer to FSP UPD Data.
@retval EFI_SUCCESS FSP UPD Data is updated.
@retval EFI_NOT_FOUND Fail to locate required PPI.
@retval Other FSP UPD Data update process fail.
**/
EFI_STATUS
EFIAPI
PeiFspCpuPolicyInitPreMem (
IN OUT FSPM_UPD *FspmUpd
)
{
EFI_STATUS Status;
SI_CPU_POLICY_PPI *SiCpuPolicyPpi;
//
// Locate SiCpuPolicyPpi
//
SiCpuPolicyPpi = NULL;
Status = PeiServicesLocatePpi (
&gSiCpuPolicyPpiGuid,
0,
NULL,
(VOID **) &SiCpuPolicyPpi
);
if (EFI_ERROR (Status)) {
return EFI_NOT_FOUND;
}
return EFI_SUCCESS;
}
/**
Performs FSP CPU PEI Policy post memory initialization.
@param[in, out] FspsUpd Pointer to FSP UPD Data.
@retval EFI_SUCCESS FSP UPD Data is updated.
@retval EFI_NOT_FOUND Fail to locate required PPI.
@retval Other FSP UPD Data update process fail.
**/
EFI_STATUS
EFIAPI
PeiFspCpuPolicyInit (
IN OUT FSPS_UPD *FspsUpd
)
{
SYSTEM_CONFIGURATION *SystemConfiguration;
EFI_PEI_READ_ONLY_VARIABLE2_PPI *VariableServices;
UINTN VariableSize = 0;
EFI_STATUS Status;
DEBUG ((DEBUG_INFO, "Update FspsUpd from setup option...\n"));
Status = PeiServicesLocatePpi (
&gEfiPeiReadOnlyVariable2PpiGuid,
0,
NULL,
(VOID **) &VariableServices
);
ASSERT_EFI_ERROR (Status);
VariableSize = sizeof (SYSTEM_CONFIGURATION);
SystemConfiguration = AllocateZeroPool (VariableSize);
Status = VariableServices->GetVariable (
VariableServices,
PLATFORM_SETUP_VARIABLE_NAME,
&gEfiSetupVariableGuid,
NULL,
&VariableSize,
SystemConfiguration
);
if (Status == EFI_SUCCESS) {
FspsUpd->FspsConfig.ActiveProcessorCores = SystemConfiguration->ActiveProcessorCores;
FspsUpd->FspsConfig.DisableCore1 = SystemConfiguration->Core1;
FspsUpd->FspsConfig.DisableCore2 = SystemConfiguration->Core2;
FspsUpd->FspsConfig.DisableCore3 = SystemConfiguration->Core3;
FspsUpd->FspsConfig.VmxEnable = SystemConfiguration->ProcessorVmxEnable;
FspsUpd->FspsConfig.ProcTraceMemSize = SystemConfiguration->ProcTraceMemSize;
FspsUpd->FspsConfig.ProcTraceEnable = SystemConfiguration->ProcTraceEnable;
FspsUpd->FspsConfig.Eist = SystemConfiguration->EnableGv;
FspsUpd->FspsConfig.BootPState = SystemConfiguration->BootPState;
FspsUpd->FspsConfig.EnableCx = SystemConfiguration->EnableCx;
FspsUpd->FspsConfig.C1e = SystemConfiguration->EnableCxe;
FspsUpd->FspsConfig.BiProcHot = SystemConfiguration->EnableProcHot;
FspsUpd->FspsConfig.PkgCStateLimit = (MAX_PKG_C_STATE) PcdGet8 (PcdMaxPkgCState);
FspsUpd->FspsConfig.EnableCx = SystemConfiguration->EnableCx;
FspsUpd->FspsConfig.CStateAutoDemotion = SystemConfiguration->CStateAutoDemotion;
FspsUpd->FspsConfig.CStateUnDemotion = SystemConfiguration->CStateUnDemotion;
FspsUpd->FspsConfig.MaxCoreCState = SystemConfiguration->MaxCoreCState;
FspsUpd->FspsConfig.PkgCStateDemotion = SystemConfiguration->PkgCStateDemotion;
FspsUpd->FspsConfig.PkgCStateUnDemotion = SystemConfiguration->PkgCStateUnDemotion;
FspsUpd->FspsConfig.TurboMode = SystemConfiguration->TurboModeEnable;
}
return EFI_SUCCESS;
}
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