616ea9daea
Our primary user QEMU/mach-virt presents us with a FDT blob padded to 64 KB with plenty of room to set additional properties. However, in the general case, we should only add properties after making sure there is enough room available. Contributed-under: TianoCore Contribution Agreement 1.0 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Olivier Martin <olivier.martin@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16960 6f19259b-4bc3-4df7-8a09-765794883524
88 lines
3.8 KiB
Plaintext
88 lines
3.8 KiB
Plaintext
#/** @file
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#
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# Copyright (c) 2014, Linaro Limited. All rights reserved.
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#
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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#**/
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[Defines]
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DEC_SPECIFICATION = 0x00010005
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PACKAGE_NAME = ArmVirtualizationPkg
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PACKAGE_GUID = A0B31216-508E-4025-BEAB-56D836C66F0A
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PACKAGE_VERSION = 0.1
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################################################################################
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#
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# Include Section - list of Include Paths that are provided by this package.
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# Comments are used for Keywords and Module Types.
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#
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# Supported Module Types:
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# BASE SEC PEI_CORE PEIM DXE_CORE DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER DXE_SAL_DRIVER UEFI_DRIVER UEFI_APPLICATION
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#
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################################################################################
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[Includes.common]
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Include # Root include for the package
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[Guids.common]
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gArmVirtualizationTokenSpaceGuid = { 0x0B6F5CA7, 0x4F53, 0x445A, { 0xB7, 0x6E, 0x2E, 0x36, 0x5B, 0x80, 0x63, 0x66 } }
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gEarlyPL011BaseAddressGuid = { 0xB199DEA9, 0xFD5C, 0x4A84, { 0x80, 0x82, 0x2F, 0x41, 0x70, 0x78, 0x03, 0x05 } }
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[PcdsFixedAtBuild, PcdsPatchableInModule]
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#
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# This is the physical address where the device tree is expected to be stored
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# upon first entry into UEFI. This needs to be a FixedAtBuild PCD, so that we
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# can do a first pass over the device tree in the SEC phase to discover the
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# UART base address.
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#
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gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress|0x0|UINT64|0x00000001
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#
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# Padding in bytes to add to the device tree allocation, so that the DTB can
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# be modified in place (default: 256 bytes)
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#
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gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeAllocationPadding|256|UINT32|0x00000002
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[PcdsDynamic, PcdsFixedAtBuild]
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#
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# ARM PSCI function invocations can be done either through hypervisor
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# calls (HVC) or secure monitor calls (SMC).
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# PcdArmPsciMethod == 1 : use HVC
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# PcdArmPsciMethod == 2 : use SMC
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#
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gArmVirtualizationTokenSpaceGuid.PcdArmPsciMethod|0|UINT32|0x00000003
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gArmVirtualizationTokenSpaceGuid.PcdFwCfgSelectorAddress|0x0|UINT64|0x00000004
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gArmVirtualizationTokenSpaceGuid.PcdFwCfgDataAddress|0x0|UINT64|0x00000005
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[PcdsFeatureFlag]
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#
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# "Map PCI MMIO as Cached"
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#
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# Due to the way Stage1 and Stage2 mappings are combined on Aarch64, and
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# because KVM -- for the time being -- does not try to interfere with the
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# Stage1 mappings, we must not set EFI_MEMORY_UC for emulated PCI MMIO
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# regions.
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#
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# EFI_MEMORY_UC is mapped to Device-nGnRnE, and that Stage1 attribute would
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# direct guest writes to host DRAM immediately, bypassing the cache
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# regardless of Stage2 attributes. However, QEMU's reads of the same range
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# can easily be served from the (stale) CPU cache.
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#
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# Setting this PCD to TRUE will use EFI_MEMORY_WB for mapping PCI MMIO
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# regions, which ensures that guest writes to such regions go through the CPU
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# cache. Strictly speaking this is wrong, but it is needed as a temporary
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# workaround for emulated PCI devices. Setting the PCD to FALSE results in
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# the theoretically correct EFI_MEMORY_UC mapping, and should be the long
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# term choice, especially with assigned devices.
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#
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# The default is to turn off the kludge; DSC's can selectively enable it.
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#
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gArmVirtualizationTokenSpaceGuid.PcdKludgeMapPciMmioAsCached|FALSE|BOOLEAN|0x00000006
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