OvmfPkg/Include/Library/TdxMailboxLib.h

   1 /** @file
   2
   3   Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
   4
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #ifndef TDX_MAILBOX_LIB_H_
  10 #define TDX_MAILBOX_LIB_H_
  11
  12 #include <Library/BaseLib.h>
  13 #include <Uefi/UefiBaseType.h>
  14 #include <Uefi/UefiSpec.h>
  15 #include <Pi/PiPeiCis.h>
  16 #include <Library/DebugLib.h>
  17 #include <Protocol/DebugSupport.h>
  18
  19 /**
  20   This function will be called by BSP to get the CPU number.
  21
  22   @retval   CPU number
  23 **/
  24 UINT32
  25 EFIAPI
  26 GetCpusNum (
  27   VOID
  28   );
  29
  30 /**
  31   Get the address of Td mailbox.
  32 **/
  33 volatile VOID *
  34 EFIAPI
  35 GetTdxMailBox (
  36   VOID
  37   );
  38
  39 /**
  40   This function will be called by BSP to wakeup APs the are spinning on mailbox
  41   in protected mode
  42
  43   @param[in] Command          Command to send APs
  44   @param[in] WakeupVector     If used, address for APs to start executing
  45   @param[in] WakeArgsX        Args to pass to APs for excuting commands
  46 **/
  47 VOID
  48 EFIAPI
  49 MpSendWakeupCommand (
  50   IN UINT16  Command,
  51   IN UINT64  WakeupVector,
  52   IN UINT64  WakeupArgs1,
  53   IN UINT64  WakeupArgs2,
  54   IN UINT64  WakeupArgs3,
  55   IN UINT64  WakeupArgs4
  56   );
  57
  58 /**
  59   BSP wait until all the APs arriving. It means the task triggered by BSP is started.
  60 **/
  61 VOID
  62 EFIAPI
  63 MpSerializeStart (
  64   VOID
  65   );
  66
  67 /**
  68   BSP wait until all the APs arriving. It means the task triggered by BSP is ended.
  69 **/
  70 VOID
  71 EFIAPI
  72 MpSerializeEnd (
  73   VOID
  74   );
  75
  76 #endif