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

[Jeremy Linton]

On 11/18/2016 08:49 AM, Jim Perrin wrote:
> Yes, that convention should still be followed. Jeremy, are you able to
> resubmit this patch with the modification to config-centos-sig please?

Sure...


>
> 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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>