SmmMp.c

Go to the documentation of this file.

 
#include "PiSmmCpuCommon.h"
#include "SmmMp.h"
 
EFI_MM_MP_PROTOCOL  mSmmMp = {
  EFI_MM_MP_PROTOCOL_REVISION,
  0,
  SmmMpGetNumberOfProcessors,
  SmmMpDispatchProcedure,
  SmmMpBroadcastProcedure,
  SmmMpSetStartupProcedure,
  SmmMpCheckForProcedure,
  SmmMpWaitForProcedure
};
 
EFI_STATUS
EFIAPI
SmmMpGetNumberOfProcessors (
  IN CONST EFI_MM_MP_PROTOCOL  *This,
  OUT      UINTN               *NumberOfProcessors
  )
{
  if (NumberOfProcessors == NULL) {
    return EFI_INVALID_PARAMETER;
  }
 
  *NumberOfProcessors = gSmmCpuPrivate->SmmCoreEntryContext.NumberOfCpus;
 
  return EFI_SUCCESS;
}
 
EFI_STATUS
EFIAPI
SmmMpDispatchProcedure (
  IN CONST EFI_MM_MP_PROTOCOL  *This,
  IN       EFI_AP_PROCEDURE2   Procedure,
  IN       UINTN               CpuNumber,
  IN       UINTN               TimeoutInMicroseconds,
  IN OUT   VOID                *ProcedureArguments OPTIONAL,
  IN OUT   MM_COMPLETION       *Token,
  IN OUT   EFI_STATUS          *CPUStatus
  )
{
  return InternalSmmStartupThisAp (
           Procedure,
           CpuNumber,
           ProcedureArguments,
           Token,
           TimeoutInMicroseconds,
           CPUStatus
           );
}
 
EFI_STATUS
EFIAPI
SmmMpBroadcastProcedure (
  IN CONST EFI_MM_MP_PROTOCOL  *This,
  IN       EFI_AP_PROCEDURE2   Procedure,
  IN       UINTN               TimeoutInMicroseconds,
  IN OUT   VOID                *ProcedureArguments OPTIONAL,
  IN OUT   MM_COMPLETION       *Token,
  IN OUT   EFI_STATUS          *CPUStatus
  )
{
  return InternalSmmStartupAllAPs (
           Procedure,
           TimeoutInMicroseconds,
           ProcedureArguments,
           Token,
           CPUStatus
           );
}
 
EFI_STATUS
EFIAPI
SmmMpSetStartupProcedure (
  IN CONST EFI_MM_MP_PROTOCOL  *This,
  IN       EFI_AP_PROCEDURE    Procedure,
  IN OUT   VOID                *ProcedureArguments OPTIONAL
  )
{
  return RegisterStartupProcedure (Procedure, ProcedureArguments);
}
 
EFI_STATUS
EFIAPI
SmmMpCheckForProcedure (
  IN CONST EFI_MM_MP_PROTOCOL  *This,
  IN       MM_COMPLETION       Token
  )
{
  if (Token == NULL) {
    return EFI_INVALID_PARAMETER;
  }
 
  if (!IsTokenInUse ((SPIN_LOCK *)Token)) {
    return EFI_NOT_FOUND;
  }
 
  return IsApReady ((SPIN_LOCK *)Token);
}
 
EFI_STATUS
EFIAPI
SmmMpWaitForProcedure (
  IN CONST EFI_MM_MP_PROTOCOL  *This,
  IN       MM_COMPLETION       Token
  )
{
  EFI_STATUS  Status;
 
  do {
    Status = SmmMpCheckForProcedure (This, Token);
  } while (Status == EFI_NOT_READY);
 
  return Status;
}