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

[Evan Lloyd <Evan.Lloyd@arm.com>]

>-----Original Message-----
>From: Sudeep Holla [mailto:sudeep.holla@arm.com]
>Sent: 25 August 2016 18:09
>To: edk2-devel@lists.01.org; Linaro UEFI; Evan Lloyd; Leif Lindholm
>Cc: Sudeep Holla; ard.biesheuvel@linaro.org
>Subject: [PATCH] Platforms/ARM/Juno: limit ACPI support to v5.0 and higher
>
>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
Reviewed-by: Evan Lloyd <Evan.Lloyd@arm.com>

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