[PATCH] Platforms/ARM/Juno: limit ACPI support to v5.0 and higher

[Sudeep Holla <sudeep.holla@arm.com>]

The ACPI spec predates the AARCH64 architecture by 5 versions, so there
is no point in supporting anything below v5.0. So set the PCD that
controls the ACPI table generation to the appropriate value.

Based on the commit e0692789058e ("ArmVirtPkg/ArmVirtQemu: limit ACPI
support to v5.0 and higher") in the upstream TianoCore by Ard Biesheuvel

Contributed-under: TianoCore Contribution Agreement 1.0
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Evan Lloyd <Evan.Lloyd@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
 Platforms/ARM/Juno/ArmJuno.dsc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Platforms/ARM/Juno/ArmJuno.dsc b/Platforms/ARM/Juno/ArmJuno.dsc
index c51d8f2e21ab..3029999bc66f 100644
--- a/Platforms/ARM/Juno/ArmJuno.dsc
+++ b/Platforms/ARM/Juno/ArmJuno.dsc
@@ -183,6 +183,10 @@
   #
   gEfiMdeModulePkgTokenSpaceGuid.PcdSmbiosVersion|0x0300
   gEfiMdeModulePkgTokenSpaceGuid.PcdSmbiosDocRev|0x0
+  #
+  # ACPI Table Version
+  #
+  gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiExposedTableVersions|0x20
 
 [PcdsPatchableInModule]
   # Console Resolution (Full HD)
-- 
2.7.4