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ArmPlatformPkg/ArmVirtualizationPkg: introduce PCDs for device tree base address 

Introduce gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeBaseAddress and
PcdDeviceTreeInitialBaseAddress, which will be used by virtual machine ports
that discover the system configuration from a flattened device tree DTB image.

The latter is FixedPcd only, and should contain the initial offset of the DTB,
the former may be declared as dynamic, and updated at runtime if the DTB is
relocated before the DXE phase.

Contributed-under: TianoCore Contribution Agreement 1.0
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16135 6f19259b-4bc3-4df7-8a09-765794883524
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Ard Biesheuvel 2014-09-18 17:56:44 +00:00 committed by oliviermartin
parent ad90df8ac0
commit ad6f3dafb8
1 changed files with 46 additions and 0 deletions
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46
ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec Normal file
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#/** @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 = ArmVirtualizationPkg
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]
gArmVirtualizationTokenSpaceGuid = { 0x0B6F5CA7, 0x4F53, 0x445A, { 0xB7, 0x6E, 0x2E, 0x36, 0x5B, 0x80, 0x63, 0x66 } }
[PcdsFixedAtBuild]
#
# 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.
#
gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress|0x0|UINT64|0x00000001
[PcdsDynamic,PcdsFixedAtBuild]
gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeBaseAddress|0x0|UINT64|0x00000002