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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 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 32B7CC432C0 for ; Tue, 19 Nov 2019 14:31:44 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 AF64D222B0 for ; Tue, 19 Nov 2019 14:31:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=posteo.de header.i=@posteo.de header.b="nUJVjFJF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AF64D222B0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=posteo.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1iX4XJ-0008RN-Eq; Tue, 19 Nov 2019 14:31:21 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1iX4XH-0008RI-1e for xen-devel@lists.xenproject.org; Tue, 19 Nov 2019 14:31:19 +0000 X-Inumbo-ID: 3f301a4c-0ad9-11ea-a2fa-12813bfff9fa Received: from mout02.posteo.de (unknown [185.67.36.66]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 3f301a4c-0ad9-11ea-a2fa-12813bfff9fa; Tue, 19 Nov 2019 14:31:17 +0000 (UTC) Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id 5A14F2400FE for ; Tue, 19 Nov 2019 15:31:16 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1574173876; bh=rUCXOYXd7UjSFbCFZ3p6rSyWgaOwn6IzuB+f+S339uQ=; h=Subject:To:From:Date:From; b=nUJVjFJFG0h+7d/8mVisUQt5aVGZdjoVHeE1dnW/+m3vi9WLXhWyT/dpcPvvNTYSb ihlbYhSaIv9jMuwv5dCjm7EfxBdlp501yDwece7lDUr5nQL0rQWPGn69V8Vw4Loq7v 1VeyYzZvXBzdzp/kjlB3Zvz2QbLE7yPRvm+Xy+RTPulP0nj/LsIQ+iBUfShINGyE/n Ob1NkFCoyAZYQlumqPw2Ntl31MHyYEj+xh03tjEzupeuM/Coa6sJAfbRmuFTRjbZ/H yBtxErEsF6lnnjdiQ1ifwGDhZV8AxGe2db+9ojAk/wfoZ/CjqPOGRhP0P1dE4tOqjU X/OEQD1c4y5bQ== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 47HStW06Pzz9rxZ; Tue, 19 Nov 2019 15:31:14 +0100 (CET) To: Jan Beulich , xen-devel@lists.xenproject.org References: <4bc44777-103b-ada5-839a-809da33ba00c@posteo.de> <10fe632c-0f08-5399-0342-f6dfd9ca9b19@posteo.de> <9d781f63-c565-01fa-b289-10b31c9ad4f1@posteo.de> <5991e76e-f4bd-971f-110e-d87fbc19a437@posteo.de> From: Andreas Kinzler Message-ID: <3d021741-17eb-4d88-9628-23170ce38b0c@posteo.de> Date: Tue, 19 Nov 2019 15:31:29 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Subject: Re: [Xen-devel] wall clock drift on Coffee Lake / C24x mainboard (HPET broken?), best practices X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gMTkuMTEuMjAxOSAxMDoyOSwgSmFuIEJldWxpY2ggd3JvdGU6Cj4gT24gMTguMTEuMjAxOSAy MDozNSwgQW5kcmVhcyBLaW56bGVyIHdyb3RlOgo+PiBPbiAxNS4xMS4yMDE5IDEyOjAxLCBBbmRy ZWFzIEtpbnpsZXIgd3JvdGU6Cj4+PiBPbiAxNC4xMS4yMDE5IDEyOjI5LCBKYW4gQmV1bGljaCB3 cm90ZToKPj4+PiBPbiAxNC4xMS4yMDE5IDAwOjEwLCBBbmRyZWFzIEtpbnpsZXIgd3JvdGU6Cj4+ Pj4+IEkgY2FtZSBhY3Jvc3MgdGhlIGZvbGxvd2luZzogaHR0cHM6Ly9sa21sLm9yZy9sa21sLzIw MTkvOC8yOS81MzYKPj4+Pj4gQ291bGQgdGhhdCBiZSB0aGUgcmVhc29uIGZvciB0aGUgcHJvYmxl bSBtZW50aW9uZWQgYmVsb3c/IFhlbiBpcyB1c2luZwo+Pj4+PiBIUEVUIGFzIGNsb2Nrc291cmNl IG9uIHRoZSBwbGF0Zm9ybS9tYWluYm9hcmQuIElzIHRoZXJlIGFuIChlYXN5KSB3YXkgdG8KPj4+ Pj4gdmVyaWZ5IGlmIFhlbiB1c2VzIFBDMTA/Cj4+Pj4gSGVuY2UgSSBjYW4gb25seSBzdWdnZXN0 IHRoYXQgeW91IHRyeSBhZ2FpbiB3aXRoIGxpbWl0ZWQgb3Igbm8KPj4+PiB1c2Ugb2YgQyBzdGF0 ZXMsIHRvIGF0IGxlYXN0IGdldCBhIGhpbnQgYXMgdG8gYSBwb3NzaWJsZQo+Pj4gSSBjaGFuZ2Vk IHRoZSBCSU9TIHNldHRpbmcgdG8gYSBsaW1pdCBvZiBQQzcgYW5kIGl0IGlzIG5vdyBydW5uaW5n LiBJCj4+PiBoYXZlIHRvIHdhaXQgZm9yIHRoZSByZXN1bHQuIFRoYW5rcy4KPj4KPj4gUHJldmlv dXNseSB0aGUgZHJpZnQgYWZ0ZXIgNCBkYXlzIHVwdGltZSB3YXMgNjAgc2VjLiBOb3cgYWZ0ZXIg NCBkYXlzCj4+IHVwdGltZSBkcmlmdCBpcyA5IHNlYy4gU28gc2V0dGluZyB0aGUgcGFja2FnZSBj LXN0YXRlIGxpbWl0IHRvIFBDNyB3YXMgYQo+PiBzdWNjZXNzLgo+IAo+IDlzIHN0aWxsIHNlZW1z IHF1aXRlIGEgbG90IHRvIG1lLCBidXQgeWVzLCBpdCdzIGFuIGltcHJvdmVtZW50LgoKSXQgc2Vl bXMgaXQgaXMgZXZlbiBiZXR0ZXIgdGhhbiBzb21lIG90aGVyIHBsYXRmb3JtcyBub3cuIFNvbWUg c25hcHNob3QgCm1lYXN1cmVtZW50cyBmcm9tIHJ1bm5pbmcgc3lzdGVtczoKWGVvbiBFMy0xMjMw djUgKFNreWxha2UpOiBkcmlmdCBvZiA0IHNlYyBwZXIgZGF5ICgyMy45OTlNSHogSFBFVCkKWGVv biBFMy0xMjQwdjYgKEthYnkgTGFrZSk6IGRyaWZ0IG9mIDEuOSBzZWMgcGVyIGRheSAoMjMuOTk5 TUh6IEhQRVQpClhlb24gRTMtMTI0MHY1IChTa3lsYWtlKTogZHJpZnQgb2YgNC44NSBzZWMgcGVy IGRheSAoMjMuOTk5TUh6IEhQRVQpClhlb24gRTUtMTYyMHY0IChCcm9hZHdlbGwpOiBkcmlmdCBv ZiAyLjcgc2VjIHBlciBkYXkgKDE0LjMxOE1IeiBIUEVUKQoKQWxsIHRoZXNlIHZhbHVlcyBhcmUg bm90IGdyZWF0LCBidXQgaXQgaXMgT0sgZm9yIG1lLgoKPiBOb3cgd291bGQgeW91IGJlIHVwIHRv IGNoZWNraW5nIHdoZXRoZXIsIHJhdGhlciB0aGFuIHZpYSBCSU9TCj4gc2V0dGluZ3MgKHdoaWNo IG5vdCBhbGwgQklPU2VzIG1heSBvZmZlcikgdGhlIHNhbWUgY2FuIGJlCj4gYWNoaWV2ZWQgYnkg dXNpbmcgWGVuJ3MgY29tbWFuZCBsaW5lIG9wdGlvbiAibWF4X2NzdGF0ZT0iPwo+IEFsc28gZGlk IHlvdSBjaGVjayB3aGV0aGVyIGZ1cnRoZXIgbGltaXRpbmcgQyBzdGF0ZSB1c2Ugd291bGQKCkkg Y2Fubm90IHRyeSBvbiBwcm9kdWN0aW9uIG1hY2hpbmVzLiBJIG1heSBoYXZlIGEgc2xvdCBvbiBs YWIgbWFjaGluZXMgCmJ1dCBJIGNhbm5vdCBwcm9taXNlLgoKID4gZnVydGhlciBpbXByb3ZlIHRo ZSBzaXR1YXRpb24/IEFuZCBkaWQgeW91IHBvc3NpYmx5IGFsc28gY2hlY2sKID4gd2hldGhlciB0 ZWxsaW5nIFhlbiBub3QgdG8gdXNlIHRoZSBIUEVUIHdvdWxkIG1ha2UgYSBkaWZmZXJlbmNlPwoK V2hpY2ggb3RoZXIgY2xvY2tzb3VyY2UgZG8geW91IHByZWZlcj8gSXMgWGVuIHRlc3RlZCAoZmll bGQtcHJvdmVuKSBvbiAKdGhhdCBvdGhlciBjbG9ja3NvdXJjZT8KClJlZ2FyZHMgQW5kcmVhcwoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0 cy54ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA==