Re: [XenARM] Regarding ARMv7a architecture boards :: Xen-Unstable

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Thu, 2012-02-09 at 12:54 +0000, See-Hwan Yoo wrote:
> Thanks for the information wrt. Fast Model.
> It would be better if you can upload some screenshot so that I can
> have the same configuration with others.

Perhaps you could try and run through the written instructions and
produce whichever screenshots you think would be useful for the benefit
of those who come after?

If there is anything which is unclear in the text I'd be happy to
clarify.

> BTW, can I do some experiments with other peripherals such as netdev or 
> blkdev?

> In addition, can we profile and measure the basic performance such as
> context switching or TLB flush overhead?

The status at the moment is that the port will boot a dom0 kernel but we
do not yet have support for booting guests so there probably isn't very
much to measure just yet.

> Is there performance counter for emulator that is similar to other ARM
> processors?

This isn't something we've looked at yet.

Ian.

> 2012/2/9 Ian Campbell <Ian.Campbell@xxxxxxxxxx>:
> > On Mon, 2012-02-06 at 02:16 +0000, See-Hwan Yoo wrote:
> >> Hi, Ian:
> >>
> >> In last week, I've downloaded and compiled xen-arm and dom0 linux from
> >> stabelini's git tree.
> >>
> >> 1. Regarding the hardware platform, do you use iMX53, Xen-ARM dev farm?
> >> or stick to "Fast Model" emulator?
> >
> > Fast Model all the way -- the processor used on the iMX53 platform does
> > not support hardware virtualisation.
> >
> >> (BTW. how fast it is?)
> >
> > It's ok for booting the h/v and kernel with a small userspace. I
> > wouldn't want to use it e.g. for self-hosting compilation or anything
> > like that.
> >
> >> I actually downloaded the emulator, but failed to run it over my pc.
> >> (looks very difficult to build up an emulator board in the emulator)
> >
> > We are using the example projects shipped with FastModels. I have just
> > created a wiki page which runs through the procedure for building one of
> > those. Please see:
> > http://wiki.xen.org/wiki/Xen_ARMv7_with_Virtualization_Extensions/FastModels
> >
> >>
> >> 2. At the beginning of xen-arm, it would fail if the hardware does not
> >> have Hyp mode.
> >> Does that mean iMx 53 supports Hyp mode?
> >
> > It means that this processor does not support Hyp mode (which is
> > expected).
> >
> > Ian.
> >
> >



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