[Arm-dev] [PATCH] redhat: configs: Enable 48 bit VA

Jim Perrin jperrin at centos.org
Fri Nov 18 14:49:41 UTC 2016


Yes, that convention should still be followed. Jeremy, are you able to
resubmit this patch with the modification to config-centos-sig please?

Phong, apart from that correction, are you okay with this change?

On 11/18/2016 03:20 AM, Phong Vo wrote:
> +-----Original Message-----
> +From: arm-dev-bounces at centos.org [mailto:arm-dev-bounces at centos.org] On
> +Behalf Of Jeremy Linton
> +Sent: Friday, November 18, 2016 6:00 AM
> +To: arm-dev at centos.org
> +Subject: [Arm-dev] [PATCH] redhat: configs: Enable 48 bit VA
> +
> +The current RHELSA kernel is using a 42bit VA which is too limiting for
> +possible near future workloads.
> +Update this to 48 bits. This patch has a dependency on mozjs versions in
> +the distro being patched to work with virtual address spaces >47 bits.
> +
> +Signed-off-by: Jeremy Linton <jeremy.linton at arm.com>
> +---
> + SOURCES/config-arm64 | 2 ++
> + 1 file changed, 2 insertions(+)
> +
> +diff --git a/SOURCES/config-arm64 b/SOURCES/config-arm64 index
> +9f0895a..f30229d 100644
> +--- a/SOURCES/config-arm64
> ++++ b/SOURCES/config-arm64
> +@@ -1,5 +1,7 @@
> + CONFIG_64BIT=y
> + CONFIG_ARM64=y
> ++CONFIG_ARM64_VA_BITS_48=y
> ++CONFIG_ARM64_VA_BITS=48
> + CONFIG_DEBUG_RODATA=y
> +
> +
> +--
> +2.5.5
> 
> The convention for CentOS 7.2 is that any overriding of the default
> config's inherited from
> Redhat would go into config-centos-sig.  Do we still follow that for
> CentOS 7.3?
> 
> -Phong
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-- 
Jim Perrin
The CentOS Project | http://www.centos.org
twitter: @BitIntegrity | GPG Key: FA09AD77


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