Re: [PATCH V4 6/6] arm64: mm: Allow forcing all userspace addresses to 52-bit

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On Thu, Dec 06, 2018 at 11:51:33AM +0000, Catalin Marinas wrote:
> On Wed, Dec 05, 2018 at 04:41:45PM +0000, Steve Capper wrote:
> > On arm64 52-bit VAs are provided to userspace when a hint is supplied to
> > mmap. This helps maintain compatibility with software that expects at
> > most 48-bit VAs to be returned.
> > 
> > In order to help identify software that has 48-bit VA assumptions, this
> > patch allows one to compile a kernel where 52-bit VAs are returned by
> > default on HW that supports it.
> > 
> > This feature is intended to be for development systems only.
> > 
> > Signed-off-by: Steve Capper <steve.capper@xxxxxxx>
> 
> Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>

Thanks Catalin.





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