[dpdk-dev] [PATCH] eal: change max hugepage sizes to 4

Steve Capper Steve.Capper at arm.com
Thu Aug 8 14:29:02 CEST 2019


Hello,

On Thu, Aug 08, 2019 at 10:37:20AM +0000, Hemant Agrawal wrote:
> Hi David,
> 
> > > VPP usages in-memory option. So, VPP on ARM with kernel 5.2 wont' work
> > without this patch.
> > >
> > 
> > I have been looking at the changes in the linux kernel.
> > Can you pinpoint at the commit that changed this in 5.2?
> > 
> > I can see a change in the code, but in 5.0, or maybe something changed in the
> > configuration.
> 
> [Hemant] I am not aware of exact patch, which changed the behavior. May be Honnappa/Steve can help here.
> 

All the possible hugetlb sizes being advertised was added in v5.0 by:
a21b0b78eaf7 arm64: hugetlb: Register hugepages during arch init

(Some more recent patches changed the constants used but the logic
remained the same).

Cheers,
-- 
Steve


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