From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6C0F1C3A589 for ; Wed, 21 Aug 2019 03:19:16 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3667F22DD3 for ; Wed, 21 Aug 2019 03:19:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=jms.id.au header.i=@jms.id.au header.b="Wwx1eqz4" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3667F22DD3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=jms.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:43658 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i0H9X-0001tj-4j for qemu-devel@archiver.kernel.org; Tue, 20 Aug 2019 23:19:15 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43642) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i0H7L-00018e-9C for qemu-devel@nongnu.org; Tue, 20 Aug 2019 23:17:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1i0H7K-0008PN-6K for qemu-devel@nongnu.org; Tue, 20 Aug 2019 23:16:59 -0400 Received: from mail-qt1-x843.google.com ([2607:f8b0:4864:20::843]:40085) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1i0H7H-0008NA-KN; Tue, 20 Aug 2019 23:16:55 -0400 Received: by mail-qt1-x843.google.com with SMTP id e8so1328644qtp.7; Tue, 20 Aug 2019 20:16:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=jms.id.au; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=HefSvfC8MkuDZ3t3Fra2/mWNZ34tCHmc7DbjtKktUlg=; b=Wwx1eqz4a34jRLEMFkT67o7h6p+5u6DkCPdNp/SyGtSlThBv8BMFVxRGBYevzw+s/h U2NeRr5CN/msQxu9W+o+d9tmQ51nxiNd1KXPQx0cssydDUSMGeUMdCYmYJ/p7rDJwD6B mmpsOrtpMjmPck1KEb0kmEYPt1akRFgHDFTNM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=HefSvfC8MkuDZ3t3Fra2/mWNZ34tCHmc7DbjtKktUlg=; b=XNiDcyYm3mA7cnyGRKbnWGNRBWQkgoMkUrKCgzwSC5n5m26HDNWyWqCkfKq5PTA4Xb ioDOEKJy9rKssQ/SakqhubZ6ajs6KdU7GOJs3EL1fJIagFeyDo2BSXocwCq3JbXRaaNG e9kcmW9MgOc8T7V2H/MQLwLXhI61QDOs0ewsDtADGXpENOh1jON4VM4F0iBC6SSZjhxI MbAOr/Y8h8mkor57BK9luhObM+1rJZ/DBOPw74JzJhoEstOEm9vyuLIdMlFfYJqVPpTV t1OnOdCjYaZCRJhJuHXvuaWhYrqSCNaTtatqThdzy+MzKuy8fb/dEPPrefYDMCVRRx3V OShQ== X-Gm-Message-State: APjAAAXtX2qRw9d6VmyD6l4OBq/hiXBhq1hhToDJDMGMEV6FF7WZX/L5 qwWzPvPi8u+mPDo3+YIHEMTw3mzo0jelRuxoXgE= X-Google-Smtp-Source: APXvYqxcaAdtiB0NAU9+vzab644npVO1OHqmatimmknY2cCQHL/2CgLF4z+MTiiyzbNzVb2eNgIegHhsu9DACJJI1Cg= X-Received: by 2002:a05:6214:12ad:: with SMTP id w13mr7153220qvu.172.1566357414548; Tue, 20 Aug 2019 20:16:54 -0700 (PDT) MIME-Version: 1.0 References: <20190704055150.4899-1-clg@kaod.org> <20190704101345.GC1609@stefanha-x1.localdomain> In-Reply-To: From: Joel Stanley Date: Wed, 21 Aug 2019 03:16:42 +0000 Message-ID: To: Peter Maydell Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::843 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 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 wrote= : > >>> 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 impleme= nted > >>>> 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 tim= er. > >> > >> 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 i= t 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? Cheers, Joel