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/**@file
Install a callback to do smm relocation.
Copyright (c) 2024, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Library/DebugLib.h>
#include <Library/PeiServicesLib.h>
#include <Library/SmmRelocationLib.h>
#include <Ppi/MpServices2.h>
#include "Platform.h"
/**
Notification function called when EDKII_PEI_MP_SERVICES2_PPI becomes available.
@param[in] PeiServices Indirect reference to the PEI Services Table.
@param[in] NotifyDescriptor Address of the notification descriptor data
structure.
@param[in] Ppi Address of the PPI that was installed.
@return Status of the notification. The status code returned from this
function is ignored.
**/
STATIC
EFI_STATUS
EFIAPI
OnMpServices2Available (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
IN VOID *Ppi
)
{
EDKII_PEI_MP_SERVICES2_PPI *MpServices2;
EFI_STATUS Status;
DEBUG ((DEBUG_INFO, "%a: %a\n", gEfiCallerBaseName, __func__));
MpServices2 = Ppi;
//
// Smm Relocation Initialize.
//
Status = SmmRelocationInit (MpServices2);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_WARN, "OnMpServices2Available: Not able to execute Smm Relocation Init. Status: %r\n", Status));
}
return EFI_SUCCESS;
}
//
// Notification object for registering the callback, for when
// EDKII_PEI_MP_SERVICES2_PPI becomes available.
//
STATIC CONST EFI_PEI_NOTIFY_DESCRIPTOR mMpServices2Notify = {
EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | // Flags
EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
&gEdkiiPeiMpServices2PpiGuid, // Guid
OnMpServices2Available // Notify
};
VOID
RelocateSmBase (
VOID
)
{
EFI_STATUS Status;
Status = PeiServicesNotifyPpi (&mMpServices2Notify);
if (EFI_ERROR (Status)) {
DEBUG ((
DEBUG_ERROR,
"%a: failed to set up MP Services2 callback: %r\n",
__func__,
Status
));
}
}
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