Re: [Xen-devel] Xen ARM community call - meeting minutes and date for the next one

[Julien Grall <julien.grall@xxxxxxx>]

Hi Volodymyr

On 30/03/2017 20:19, Volodymyr Babchuk wrote:
> On 30 March 2017 at 21:52, Stefano Stabellini <sstabellini@xxxxxxxxxx> wrote:
> > On Thu, 30 Mar 2017, Volodymyr Babchuk wrote:
> And yes, my profiler shows that there are ways to further decrease
> latency. Most obvious way is to get rid of 2nd stage translation and
> thus eliminate p2m code from the call chain. Currently hypervisor
> spends 20% of time in spinlocks code and about ~10-15% in p2m. So
> there definitely are areas to improve :)
Correct me if I am wrong. You are suggesting to remove stage-2 MMU 
translation, right? If so, what are the benefits to have some Xen code 
running at EL0?
Cheers,

--
Julien Grall

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