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X-Received-From: 2607:f8b0:4864:20::242 Subject: Re: [Qemu-devel] [PATCH for 4.1] aspeed/timer: Provide back-pressure information for short periods X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrew Jeffery , QEMU Developers , qemu-arm , =?UTF-8?Q?C=C3=A9dric_Le_Goater?= , Stefan Hajnoczi , Paolo Bonzini , =?UTF-8?Q?Philippe_Mathieu=2DDaud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Wed, 21 Aug 2019 at 04:16, Joel Stanley wrote: > > On Tue, 16 Jul 2019 at 07:02, Philippe Mathieu-Daud=C3=A9 wrote: > > On 7/16/19 9:00 AM, Joel Stanley wrote: > > > On Tue, 16 Jul 2019 at 06:54, Joel Stanley wrote: > > >> On Thu, 4 Jul 2019 at 12:26, Paolo Bonzini wro= te: > > >>> On 04/07/19 12:13, Stefan Hajnoczi wrote: > > >>>> On Thu, Jul 04, 2019 at 11:26:53AM +0200, Philippe Mathieu-Daud=C3= =A9 wrote: > > >>>>> CC'ing Stefan & Paolo for a non-ARM view on this... > > >>>> > > >>>> I'm not familiar with the various clock smoothing techniques imple= mented > > >>>> in QEMU and KVM, but this looks okay given that Linux guests expec= t > > >>>> this. > > >>> > > >>> Yeah, even KVM applies a minimum period of 200us to the x86 LAPIC t= imer. > > >> > > >> Can we please merge this so guests can boot on 4.1? > > > > > > C=C3=A9dric 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 > > > later. > > > > Agreed. > > > > > > > > Reviewed-by: Joel Stanley > > > Tested-by: Joel Stanley > > > > Reviewed-by: Philippe Mathieu-Daud=C3=A9 > > HI Peter, > > Is this one still in your queue? Applied to target-arm.next, thanks. -- PMM