OvmfPkg/TdxDxe/TdxAcpiTable.h

   1 /** @file
   2
   3   Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
   4   SPDX-License-Identifier: BSD-2-Clause-Patent
   5
   6 **/
   7
   8 #ifndef TDX_ACPI_TABLE_H_
   9 #define TDX_ACPI_TABLE_H_
  10
  11 #include <PiDxe.h>
  12
  13 #include <Protocol/AcpiTable.h>
  14 #include <Protocol/FirmwareVolume2.h>
  15 #include <Protocol/PciIo.h>
  16
  17 #include <Library/BaseLib.h>
  18 #include <Library/UefiBootServicesTableLib.h>
  19 #include <Library/DebugLib.h>
  20 #include <Library/PcdLib.h>
  21 #include <IndustryStandard/IntelTdx.h>
  22 #include <IndustryStandard/Acpi.h>
  23
  24 VOID
  25 EFIAPI
  26 AsmGetRelocationMap (
  27   OUT MP_RELOCATION_MAP  *AddressMap
  28   );
  29
  30 /**
  31   At the beginning of system boot, a 4K-aligned, 4K-size memory (Td mailbox) is
  32   pre-allocated by host VMM. BSP & APs do the page accept together in that memory
  33   region.
  34
  35   After that TDVF is designed to relocate the mailbox to a 4K-aligned, 4K-size
  36   memory block which is allocated in the ACPI Nvs memory. APs are waken up and
  37   spin around the relocated mailbox for further command.
  38
  39   @return   EFI_PHYSICAL_ADDRESS    Address of the relocated mailbox
  40 **/
  41 EFI_PHYSICAL_ADDRESS
  42 EFIAPI
  43 RelocateMailbox (
  44   VOID
  45   );
  46
  47 /**
  48   Alter the MADT when ACPI Table from QEMU is available.
  49
  50   @param[in]  Event     Event whose notification function is being invoked
  51   @param[in]  Context   Pointer to the notification function's context
  52 **/
  53 VOID
  54 EFIAPI
  55 AlterAcpiTable (
  56   IN EFI_EVENT  Event,
  57   IN VOID       *Context
  58   );
  59
  60 #endif