Re: [Xen-devel] [PATCH 5/5] xen: arm: flush TLB after overwriting 1:1 mapping in boot page tables

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2014-07-16 at 19:11 +0100, Julien Grall wrote:
> Hi Ian,
> 
> On 14/07/14 17:39, Ian Campbell wrote:
> > Otherwise a stale TLB entry can shadow the fixmap/UART or DTB mapping
> >
> > Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
> 
> Good catch! I guess this could also happen on Xen 4.4. I would consider 
> to backport it :)

I noticed when moving the PRINT(- Ready -) to right after x32 (for debug
purposes) was reloaded with the UART address failed.

I've added this to my backports list.

> Acked-by: Julien Grall <julien.grall@xxxxxxxxxx>

Cheers.

Ian.



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