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Re: [Qemu-arm] [Qemu-devel] [PATCH for 4.1] aspeed/timer: Provide back-p
Re: [Qemu-arm] [Qemu-devel] [PATCH for 4.1] aspeed/timer: Provide back-pressure information for short periods
Tue, 16 Jul 2019 07:00:43 +0000
On Tue, 16 Jul 2019 at 06:54, Joel Stanley <address@hidden> wrote:
> Hi Peter,
> On Thu, 4 Jul 2019 at 12:26, Paolo Bonzini <address@hidden> wrote:
> > On 04/07/19 12:13, Stefan Hajnoczi wrote:
> > > On Thu, Jul 04, 2019 at 11:26:53AM +0200, Philippe Mathieu-Daudé wrote:
> > >> CC'ing Stefan & Paolo for a non-ARM view on this...
> > >
> > > I'm not familiar with the various clock smoothing techniques implemented
> > > in QEMU and KVM, but this looks okay given that Linux guests expect
> > > this.
> > Yeah, even KVM applies a minimum period of 200us to the x86 LAPIC timer.
> Can we please merge this so guests can boot on 4.1?
Cédric pointed out this lacks my reviewed by. I had not provided it in
the past as I wondered if we could come up with a better fix. However,
I consider this a good fix for 4.1, and if sometime finds time to
further rework the timer model in the future then we can do that work
Reviewed-by: Joel Stanley <address@hidden>
Tested-by: Joel Stanley <address@hidden>