Re: [Xen-devel] [RFC v4 0/2] x86/xen: add xen hypercall preemption

From: Luis R. Rodriguez
Date: Fri Jan 23 2015 - 13:58:53 EST


On Fri, Jan 23, 2015 at 11:51:09AM +0000, David Vrabel wrote:
> On 23/01/15 00:29, Luis R. Rodriguez wrote:
> > From: "Luis R. Rodriguez" <mcgrof@xxxxxxxx>
> >
> > This v4 addresses some of the cleanups recommended and adds
> > tracing option for when we do actually preempt a hypercall.
> > I kept the NOKPROBE_SYMBOL() for now but did remove the 'notrace'
> > stuff.
> >
> > This goes out as RFC still as I have not been able to test 32-bit.
> > Can anyone test that or at least confirm that the 32-bit point
> > we do the upcall is definitely not on the IRQ stack?
>
> You can omit fixing this for 32-bit guests (provided you note as such in
> the commit message).

I'll be happy to do that.

Luis
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