#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include <Library/PeiServicesLib.h>
#include <Library/QemuFwCfgLib.h>
#include <Ppi/MpServices.h>
#include <Register/ArchitecturalMsr.h>
#include <IndustryStandard/Tdx.h>
#include "Platform.h"

Functions
STATIC VOID EFIAPI	WriteFeatureControl (IN OUT VOID *WorkSpace)

STATIC EFI_STATUS EFIAPI	OnMpServicesAvailable (IN EFI_PEI_SERVICES *PeiServices, IN EFI_PEI_NOTIFY_DESCRIPTOR NotifyDescriptor, IN VOID *Ppi)

VOID	InstallFeatureControlCallback (IN OUT EFI_HOB_PLATFORM_INFO *PlatformInfoHob)

Variables
STATIC CONST EFI_PEI_NOTIFY_DESCRIPTOR	mMpServicesNotify

Detailed Description

Install a callback when necessary for setting the Feature Control MSR on all processors.

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

Definition in file FeatureControl.c.

Function Documentation

◆ InstallFeatureControlCallback()

VOID InstallFeatureControlCallback ( IN OUT EFI_HOB_PLATFORM_INFO * PlatformInfoHob )

Definition at line 126 of file FeatureControl.c.

◆ OnMpServicesAvailable()

STATIC EFI_STATUS EFIAPI OnMpServicesAvailable	(	IN EFI_PEI_SERVICES **	PeiServices,
		IN EFI_PEI_NOTIFY_DESCRIPTOR *	NotifyDescriptor,
		IN VOID *	Ppi
	)

Notification function called when EFI_PEI_MP_SERVICES_PPI becomes available.

Parameters

[in]	PeiServices	Indirect reference to the PEI Services Table.
[in]	NotifyDescriptor	Address of the notification descriptor data structure.
[in]	Ppi	Address of the PPI that was installed.

Returns: Status of the notification. The status code returned from this function is ignored.

Definition at line 70 of file FeatureControl.c.

◆ WriteFeatureControl()

STATIC VOID EFIAPI WriteFeatureControl ( IN OUT VOID * WorkSpace )

Write the Feature Control MSR on an Application Processor or the Boot Processor.

All APs execute this function in parallel. The BSP executes the function separately.

Parameters

[in,out] WorkSpace Pointer to the input/output argument workspace shared by all processors.

Definition at line 33 of file FeatureControl.c.

Variable Documentation

◆ mMpServicesNotify

STATIC CONST EFI_PEI_NOTIFY_DESCRIPTOR mMpServicesNotify

Initial value:

= {
  EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | 
  EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
  &gEfiPeiMpServicesPpiGuid,               
  OnMpServicesAvailable                    
}

Definition at line 118 of file FeatureControl.c.

Functions