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ArmVirtualizationPkg: use a HOB to store device tree blob
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1 #/** @file
2 #
3 # Copyright (c) 2014, Linaro Limited. All rights reserved.
4 #
5 # This program and the accompanying materials
6 # are licensed and made available under the terms and conditions of the BSD License
7 # which accompanies this distribution. The full text of the license may be found at
8 # http://opensource.org/licenses/bsd-license.php
9 #
10 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12 #
13 #**/
14
15 [Defines]
16 DEC_SPECIFICATION = 0x00010005
17 PACKAGE_NAME = ArmVirtualizationPkg
18 PACKAGE_GUID = A0B31216-508E-4025-BEAB-56D836C66F0A
19 PACKAGE_VERSION = 0.1
20
21 ################################################################################
22 #
23 # Include Section - list of Include Paths that are provided by this package.
24 # Comments are used for Keywords and Module Types.
25 #
26 # Supported Module Types:
27 # BASE SEC PEI_CORE PEIM DXE_CORE DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER DXE_SAL_DRIVER UEFI_DRIVER UEFI_APPLICATION
28 #
29 ################################################################################
30 [Includes.common]
31 Include # Root include for the package
32
33 [Guids.common]
34 gArmVirtualizationTokenSpaceGuid = { 0x0B6F5CA7, 0x4F53, 0x445A, { 0xB7, 0x6E, 0x2E, 0x36, 0x5B, 0x80, 0x63, 0x66 } }
35 gEarlyPL011BaseAddressGuid = { 0xB199DEA9, 0xFD5C, 0x4A84, { 0x80, 0x82, 0x2F, 0x41, 0x70, 0x78, 0x03, 0x05 } }
36
37 [PcdsFixedAtBuild, PcdsPatchableInModule]
38 #
39 # This is the physical address where the device tree is expected to be stored
40 # upon first entry into UEFI. This needs to be a FixedAtBuild PCD, so that we
41 # can do a first pass over the device tree in the SEC phase to discover the
42 # UART base address.
43 #
44 gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress|0x0|UINT64|0x00000001
45
46 [PcdsDynamic, PcdsFixedAtBuild]
47 #
48 # ARM PSCI function invocations can be done either through hypervisor
49 # calls (HVC) or secure monitor calls (SMC).
50 # PcdArmPsciMethod == 1 : use HVC
51 # PcdArmPsciMethod == 2 : use SMC
52 #
53 gArmVirtualizationTokenSpaceGuid.PcdArmPsciMethod|0|UINT32|0x00000003
54
55 gArmVirtualizationTokenSpaceGuid.PcdFwCfgSelectorAddress|0x0|UINT64|0x00000004
56 gArmVirtualizationTokenSpaceGuid.PcdFwCfgDataAddress|0x0|UINT64|0x00000005
57
58 [PcdsFeatureFlag]
59 #
60 # "Map PCI MMIO as Cached"
61 #
62 # Due to the way Stage1 and Stage2 mappings are combined on Aarch64, and
63 # because KVM -- for the time being -- does not try to interfere with the
64 # Stage1 mappings, we must not set EFI_MEMORY_UC for emulated PCI MMIO
65 # regions.
66 #
67 # EFI_MEMORY_UC is mapped to Device-nGnRnE, and that Stage1 attribute would
68 # direct guest writes to host DRAM immediately, bypassing the cache
69 # regardless of Stage2 attributes. However, QEMU's reads of the same range
70 # can easily be served from the (stale) CPU cache.
71 #
72 # Setting this PCD to TRUE will use EFI_MEMORY_WB for mapping PCI MMIO
73 # regions, which ensures that guest writes to such regions go through the CPU
74 # cache. Strictly speaking this is wrong, but it is needed as a temporary
75 # workaround for emulated PCI devices. Setting the PCD to FALSE results in
76 # the theoretically correct EFI_MEMORY_UC mapping, and should be the long
77 # term choice, especially with assigned devices.
78 #
79 # The default is to turn off the kludge; DSC's can selectively enable it.
80 #
81 gArmVirtualizationTokenSpaceGuid.PcdKludgeMapPciMmioAsCached|FALSE|BOOLEAN|0x00000006