VariableTraditionalMm.c

Go to the documentation of this file.

 
#include <Library/UefiBootServicesTableLib.h>
#include <Library/SmmMemLib.h>
#include "Variable.h"
 
BOOLEAN
VariableSmmIsPrimaryBufferValid (
  IN EFI_PHYSICAL_ADDRESS  Buffer,
  IN UINT64                Length
  )
{
  return SmmIsBufferOutsideSmmValid (Buffer, Length);
}
 
BOOLEAN
VariableSmmIsNonPrimaryBufferValid (
  IN EFI_PHYSICAL_ADDRESS  Buffer,
  IN UINT64                Length
  )
{
  return SmmIsBufferOutsideSmmValid (Buffer, Length);
}
 
VOID
VariableNotifySmmReady (
  VOID
  )
{
  EFI_STATUS  Status;
  EFI_HANDLE  Handle;
 
  Handle = NULL;
  Status = gBS->InstallProtocolInterface (
                  &Handle,
                  &gEfiSmmVariableProtocolGuid,
                  EFI_NATIVE_INTERFACE,
                  NULL
                  );
  ASSERT_EFI_ERROR (Status);
}
 
VOID
VariableNotifySmmWriteReady (
  VOID
  )
{
  EFI_STATUS  Status;
  EFI_HANDLE  Handle;
 
  Handle = NULL;
  Status = gBS->InstallProtocolInterface (
                  &Handle,
                  &gSmmVariableWriteGuid,
                  EFI_NATIVE_INTERFACE,
                  NULL
                  );
  ASSERT_EFI_ERROR (Status);
}
 
EFI_STATUS
EFIAPI
VariableServiceInitialize (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  return MmVariableServiceInitialize ();
}
 
BOOLEAN
VariableIsMorVariableLegitimate (
  VOID
  )
{
  EFI_STATUS  Status;
  VOID        *Interface;
 
  Status = gBS->LocateProtocol (
                  &gEfiTcg2ProtocolGuid,
                  NULL,                     // Registration
                  &Interface
                  );
  if (!EFI_ERROR (Status)) {
    return TRUE;
  }
 
  Status = gBS->LocateProtocol (
                  &gEfiTcgProtocolGuid,
                  NULL,                     // Registration
                  &Interface
                  );
  return !EFI_ERROR (Status);
}