audk/ArmVirtPkg/ArmVirtPkg.dec

#/** @file
#
#  Copyright (c) 2014, Linaro Limited. All rights reserved.
#
#  This program and the accompanying materials
#  are licensed and made available under the terms and conditions of the BSD License
#  which accompanies this distribution.  The full text of the license may be found at
#  http://opensource.org/licenses/bsd-license.php
#
#  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
#  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#**/

[Defines]
  DEC_SPECIFICATION              = 0x00010005
  PACKAGE_NAME                   = ArmVirtPkg
  PACKAGE_GUID                   = A0B31216-508E-4025-BEAB-56D836C66F0A
  PACKAGE_VERSION                = 0.1

################################################################################
#
# Include Section - list of Include Paths that are provided by this package.
#                   Comments are used for Keywords and Module Types.
#
# Supported Module Types:
#  BASE SEC PEI_CORE PEIM DXE_CORE DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER DXE_SAL_DRIVER UEFI_DRIVER UEFI_APPLICATION
#
################################################################################
[Includes.common]
  Include                        # Root include for the package

[Guids.common]
  gArmVirtTokenSpaceGuid = { 0x0B6F5CA7, 0x4F53, 0x445A, { 0xB7, 0x6E, 0x2E, 0x36, 0x5B, 0x80, 0x63, 0x66 } }
  gEarlyPL011BaseAddressGuid       = { 0xB199DEA9, 0xFD5C, 0x4A84, { 0x80, 0x82, 0x2F, 0x41, 0x70, 0x78, 0x03, 0x05 } }

[PcdsFixedAtBuild, PcdsPatchableInModule]
  #
  # This is the physical address where the device tree is expected to be stored
  # upon first entry into UEFI. This needs to be a FixedAtBuild PCD, so that we
  # can do a first pass over the device tree in the SEC phase to discover the
  # UART base address.
  #
  gArmVirtTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress|0x0|UINT64|0x00000001

  #
  # Padding in bytes to add to the device tree allocation, so that the DTB can
  # be modified in place (default: 256 bytes)
  #
  gArmVirtTokenSpaceGuid.PcdDeviceTreeAllocationPadding|256|UINT32|0x00000002

[PcdsDynamic, PcdsFixedAtBuild]
  #
  # ARM PSCI function invocations can be done either through hypervisor
  # calls (HVC) or secure monitor calls (SMC).
  # PcdArmPsciMethod == 1 : use HVC
  # PcdArmPsciMethod == 2 : use SMC
  #
  gArmVirtTokenSpaceGuid.PcdArmPsciMethod|0|UINT32|0x00000003

  gArmVirtTokenSpaceGuid.PcdFwCfgSelectorAddress|0x0|UINT64|0x00000004
  gArmVirtTokenSpaceGuid.PcdFwCfgDataAddress|0x0|UINT64|0x00000005

[PcdsFeatureFlag]
  #
  # "Map PCI MMIO as Cached"
  #
  # Due to the way Stage1 and Stage2 mappings are combined on Aarch64, and
  # because KVM -- for the time being -- does not try to interfere with the
  # Stage1 mappings, we must not set EFI_MEMORY_UC for emulated PCI MMIO
  # regions.
  #
  # EFI_MEMORY_UC is mapped to Device-nGnRnE, and that Stage1 attribute would
  # direct guest writes to host DRAM immediately, bypassing the cache
  # regardless of Stage2 attributes. However, QEMU's reads of the same range
  # can easily be served from the (stale) CPU cache.
  #
  # Setting this PCD to TRUE will use EFI_MEMORY_WB for mapping PCI MMIO
  # regions, which ensures that guest writes to such regions go through the CPU
  # cache. Strictly speaking this is wrong, but it is needed as a temporary
  # workaround for emulated PCI devices. Setting the PCD to FALSE results in
  # the theoretically correct EFI_MEMORY_UC mapping, and should be the long
  # term choice, especially with assigned devices.
  #
  # The default is to turn off the kludge; DSC's can selectively enable it.
  #
  gArmVirtTokenSpaceGuid.PcdKludgeMapPciMmioAsCached|FALSE|BOOLEAN|0x00000006