ArmVirtPkg: Add Ramdisk support to ArmVirtPkg platforms

Adds the RAMDisk support to ArmVirtPkg platforms.
This patch actually ports OvmfPkg commit 259d87146b to
ArmVirtPkg.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Vikas C Sajjan <vikas.cha.sajjan@hpe.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>

ArmVirtPkg/ArmVirt.dsc.inc

@@ -274,6 +274,12 @@
 
   gEfiMdeModulePkgTokenSpaceGuid.PcdTurnOffUsbLegacySupport|TRUE
 
+[PcdsFeatureFlag.AARCH64]
+  #
+  # Activate AcpiSdtProtocol
+  #
+  gEfiMdeModulePkgTokenSpaceGuid.PcdInstallAcpiSdtProtocol|TRUE
+
 [PcdsFixedAtBuild.common]
   gEfiMdePkgTokenSpaceGuid.PcdMaximumUnicodeStringLength|1000000
   gEfiMdePkgTokenSpaceGuid.PcdMaximumAsciiStringLength|1000000
@@ -382,6 +388,11 @@
   MdeModulePkg/Universal/Network/UefiPxeBcDxe/UefiPxeBcDxe.inf
   MdeModulePkg/Universal/Network/IScsiDxe/IScsiDxe.inf
 
+  #
+  # Ramdisk support
+  #
+  MdeModulePkg/Universal/Disk/RamDiskDxe/RamDiskDxe.inf
+
   #
   # UEFI application (Shell Embedded Boot Loader)
   #

ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc

@@ -177,3 +177,8 @@ READ_LOCK_STATUS   = TRUE
   FILE FREEFORM = PCD(gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdLogoFile) {
     SECTION RAW = MdeModulePkg/Logo/Logo.bmp
   }
+
+  #
+  # Ramdisk support
+  #
+  INF MdeModulePkg/Universal/Disk/RamDiskDxe/RamDiskDxe.inf

ArmVirtPkg/ArmVirtRules.fdf.inc

@@ -85,6 +85,8 @@
     DXE_DEPEX    DXE_DEPEX              Optional $(INF_OUTPUT)/$(MODULE_NAME).depex
     PE32         PE32                   $(INF_OUTPUT)/$(MODULE_NAME).efi
     UI           STRING="$(MODULE_NAME)" Optional
+    RAW          ACPI  Optional               |.acpi
+    RAW          ASL   Optional               |.aml
   }
 
 [Rule.Common.DXE_RUNTIME_DRIVER]

ArmVirtPkg/ArmVirtXen.fdf

@@ -188,6 +188,11 @@ READ_LOCK_STATUS   = TRUE
   INF ArmVirtPkg/XenAcpiPlatformDxe/XenAcpiPlatformDxe.inf
 !endif
 
+ #
+ # Ramdisk support
+ #
+ INF MdeModulePkg/Universal/Disk/RamDiskDxe/RamDiskDxe.inf
+
 [FV.FVMAIN_COMPACT]
 FvAlignment        = 16
 ERASE_POLARITY     = 1