From: Sami Mujawar <sami.muja...@arm.com>

A Configuration Manager that uses the Dynamic Tables framework
to generate ACPI tables for Kvmtool Guests has been provided.
This Configuration Manager uses the FdtHwInfoParser module to
parse the Kvmtool Device Tree and generate the required
Configuration Manager objects for generating the ACPI tables.

Therefore, enable ACPI table generation for Kvmtool.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3742
Signed-off-by: Sami Mujawar <sami.muja...@arm.com>
Signed-off-by: Pierre Gondois <pierre.gond...@arm.com>
---

Notes:
    v2:
    - Remove Pcds that are redefined to their default value,
      and modules already included in ArmVirtPkg/ArmVirt.dsc.inc
      [Laszlo]
    - Use guards as '!if $(ARCH) == AARCH64' to conditionnaly
      generate ACPI tables. This allows to prevent the 32bits
      ARM/ACPI combination without restricting the DynamicTablesPkg
      to AARCH64. This means that KvmTool on ARM will use the DT.
      Not adding Laszlo's Acked-by since this is not exactly what
      was suggested. [Laszlo/Pierre]

 ArmVirtPkg/ArmVirtKvmTool.dsc | 17 ++++++++++++++---
 ArmVirtPkg/ArmVirtKvmTool.fdf | 15 ++++++++++++++-
 2 files changed, 28 insertions(+), 4 deletions(-)

diff --git a/ArmVirtPkg/ArmVirtKvmTool.dsc b/ArmVirtPkg/ArmVirtKvmTool.dsc
index 4a54d13735e9..4b6090ab6075 100644
--- a/ArmVirtPkg/ArmVirtKvmTool.dsc
+++ b/ArmVirtPkg/ArmVirtKvmTool.dsc
@@ -29,6 +29,10 @@ [Defines]
 
 !include ArmVirtPkg/ArmVirt.dsc.inc
 
+!if $(ARCH) == AARCH64
+!include DynamicTablesPkg/DynamicTables.dsc.inc
+!endif
+
 !include MdePkg/MdeLibs.dsc.inc
 
 [LibraryClasses.common]
@@ -71,6 +75,9 @@ [LibraryClasses.common]
   
PlatformHookLib|ArmVirtPkg/Library/Fdt16550SerialPortHookLib/Fdt16550SerialPortHookLib.inf
   
SerialPortLib|MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.inf
 
+  
HwInfoParserLib|DynamicTablesPkg/Library/FdtHwInfoParserLib/FdtHwInfoParserLib.inf
+  
DynamicPlatRepoLib|DynamicTablesPkg/Library/Common/DynamicPlatRepoLib/DynamicPlatRepoLib.inf
+
 [LibraryClasses.common.SEC, LibraryClasses.common.PEI_CORE, 
LibraryClasses.common.PEIM]
   PciExpressLib|MdePkg/Library/BasePciExpressLib/BasePciExpressLib.inf
   
PlatformHookLib|ArmVirtPkg/Library/Fdt16550SerialPortHookLib/EarlyFdt16550SerialPortHookLib.inf
@@ -195,9 +202,6 @@ [PcdsDynamicDefault.common]
   gEfiMdeModulePkgTokenSpaceGuid.PcdSetupVideoHorizontalResolution|640
   gEfiMdeModulePkgTokenSpaceGuid.PcdSetupVideoVerticalResolution|480
 
-  ## Force DTB
-  gArmVirtTokenSpaceGuid.PcdForceNoAcpi|TRUE
-
   # Setup Flash storage variables
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x40000
@@ -353,3 +357,10 @@ [Components.common]
   }
   OvmfPkg/VirtioPciDeviceDxe/VirtioPciDeviceDxe.inf
   OvmfPkg/Virtio10Dxe/Virtio10.inf
+
+!if $(ARCH) == AARCH64
+  #
+  # ACPI Support
+  #
+  ArmVirtPkg/KvmtoolCfgMgrDxe/ConfigurationManagerDxe.inf
+!endif
diff --git a/ArmVirtPkg/ArmVirtKvmTool.fdf b/ArmVirtPkg/ArmVirtKvmTool.fdf
index 14a5fce43a09..9e006e83ee5c 100644
--- a/ArmVirtPkg/ArmVirtKvmTool.fdf
+++ b/ArmVirtPkg/ArmVirtKvmTool.fdf
@@ -1,5 +1,5 @@
 #
-#  Copyright (c) 2018 - 2021, ARM Limited. All rights reserved.
+#  Copyright (c) 2018 - 2022, ARM Limited. All rights reserved.
 #
 #  SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -201,6 +201,19 @@ [FV.FvMain]
   INF OvmfPkg/VirtioPciDeviceDxe/VirtioPciDeviceDxe.inf
   INF OvmfPkg/Virtio10Dxe/Virtio10.inf
 
+!if $(ARCH) == AARCH64
+  #
+  # ACPI Support
+  #
+  INF MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf
+  #
+  # Dynamic Table fdf
+  #
+  !include DynamicTablesPkg/DynamicTables.fdf.inc
+
+  INF ArmVirtPkg/KvmtoolCfgMgrDxe/ConfigurationManagerDxe.inf
+!endif
+
   #
   # TianoCore logo (splash screen)
   #
-- 
2.25.1



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