Re: [Xen-devel] [PATCH v3 10/15] xen/arm: Data abort exception (R/W) mem_events.

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2014-09-08 at 13:41 -0700, Julien Grall wrote:
> 
> On 03/09/14 14:56, Tamas K Lengyel wrote:
>   > I'm not entirely sure I could easily extend
> > apply_one_level/apply_p2m_changes without significant changes and a
> > potential to affect something else along the way.. I can give it a try
> > though but I'm a bit hesitant.. Do you see an immediate performance
> > reason to try to hook it into those functions instead of keeping it
> > separate? The current function is pretty straight forward in what it is
> > doing as it is.
> 
> I would like to avoid standalone function that manipulate the p2m. It 
> will be easier to fix bug, hence the code if everything is using the 
> same code.

Agreed, having two functions which do essentially the same thing (walk
the p2m and manipulate it) is not good from a maintenance point of view.
There would need to be a more compelling reason for this than a worry
about breaking the existing code.

Ian.


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