Re: [Xen-devel] [PATCH v5 08/15] xen: arm: drop cache maintenance by set/way trap handling

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Mon, 2015-03-30 at 13:28 +0100, Julien Grall wrote:
> Hi Ian,
> 
> On 30/03/15 12:12, Ian Campbell wrote:
> > We do not set HCR_EL2.TSW so we will never see these.
> > 
> > This is undoubtedly wrong, but for now remove the dead code.
> 
> Would it be better to trap and ignore them?

Yes, but this patch retains the status quo (while removing a thing to
think about in later patches). Doing something better is on my todo list
(as I said in the cover letter).

> Even though it wouldn't be entirely correct, it would be better than
> letting the guest using it.



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