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=-2.2 required=3.0 tests=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 6B929C432C3 for ; Fri, 15 Nov 2019 15:34:32 +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 47C6E20715 for ; Fri, 15 Nov 2019 15:34:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 47C6E20715 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com 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 1iVdc6-0006KB-MG; Fri, 15 Nov 2019 15:34:22 +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 1iVdc5-0006Jf-LD for xen-devel@lists.xenproject.org; Fri, 15 Nov 2019 15:34:21 +0000 X-Inumbo-ID: 6473144a-07bd-11ea-a276-12813bfff9fa Received: from mx1.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 6473144a-07bd-11ea-a276-12813bfff9fa; Fri, 15 Nov 2019 15:34:20 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 1E479B1CF; Fri, 15 Nov 2019 15:34:20 +0000 (UTC) To: George Dunlap References: <20191115105739.20333-1-george.dunlap@citrix.com> <1573828317.2460.0@crc.id.au> <35ea5459-fbe7-a2f1-0fb5-40408fad13ab@citrix.com> From: Jan Beulich Message-ID: Date: Fri, 15 Nov 2019 16:34:37 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1 MIME-Version: 1.0 In-Reply-To: <35ea5459-fbe7-a2f1-0fb5-40408fad13ab@citrix.com> Content-Language: en-US Subject: Re: [Xen-devel] [PATCH RFC] x86: Add hack to disable "Fake HT" mode 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: , Cc: Steven Haigh , Andrew Cooper , Andreas Kinzler , IanJackson , Anthony Perard , xen-devel@lists.xenproject.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gMTUuMTEuMjAxOSAxNjozMCwgR2VvcmdlIER1bmxhcCB3cm90ZToKPiBPbiAxMS8xNS8xOSAz OjI3IFBNLCBKYW4gQmV1bGljaCB3cm90ZToKPj4gT24gMTUuMTEuMjAxOSAxNjowNSwgR2Vvcmdl IER1bmxhcCB3cm90ZToKPj4+IEZUUiwgcGxlYXNlIGF2b2lkIHRvcC1wb3N0aW5nLiA6LSkKPj4+ Cj4+PiBPbiAxMS8xNS8xOSAyOjMxIFBNLCBTdGV2ZW4gSGFpZ2ggd3JvdGU6Cj4+Pj4gSnVzdCBy ZWdhcmRpbmcgdGhlIHVzZSBvZiBhIHN5c3RlbSBlbnZpcm9ubWVudCB2YXJpYWJsZSB0byB0dXJu IHRoaXMKPj4+PiBmZWF0dXJlIC8gYnVnZml4IC8gaGFjayBvbiBhbmQgb2ZmIC0gdGhpcyB3b3Vs ZCBwcm9iYWJseSBicmVhayBzdGFydGluZwo+Pj4+IHRoZSBWTSB2aWEgdGhlIHhlbmRvbWFpbnMg c2NyaXB0Lgo+Pj4+Cj4+Pj4gSWYgdGhlIFZNIGRlZmluaXRpb24gaXMgaW4gL2V0Yy94ZW4vYXV0 by8sIHRoZW4gdGhlcmUgd291bGQgYmUgbm90aGluZwo+Pj4+IHRvIHNldCB0aGUgZW52aXJvbm1l bnQgdmFyaWFibGUgYmVmb3JlIHRoZSBWTSBpcyBsYXVuY2hlZCAtIGhlbmNlIGl0Cj4+Pj4gd291 bGQgbm90IGJlIGFwcGxpZWQgYW5kIGEgZ3Vlc3QgY3Jhc2ggd291bGQgb2NjdXIuLi4KPj4+Pgo+ Pj4+IERlcGVuZGluZyBvbiB0aGUgVk0ncyBzZXR0aW5ncywgdGhpcyB3b3VsZCBlaXRoZXIgY29u dGludWUgdG8gc3RhcnQgJgo+Pj4+IGNyYXNoIC0gb3IganVzdCBzdG9wIGFnYWluIHVudGlsIGl0 IGNvdWxkIGJlIHN0YXJ0ZWQgd2l0aCB0aGUgRU5WIHZhcmlhYmxlLgo+Pj4KPj4+IFJpZ2h0LiAg U28gYSBjb3VwbGUgb2Ygb3B0aW9uczoKPj4+Cj4+PiAxLiBVc2VycyBvZiB4ZW5kb21haW5zIGNv dWxkIHNldCB0aGUgZW52aXJvbm1lbnQgdmFyaWFibGUgaW4gdGhlaXIKPj4+IHhlbmRvbWFpbnMg c2NyaXB0Cj4+Pgo+Pj4gMi4gV2UgY291bGQgYWRkIGEgeGwuY2ZnIG9wdGlvbi4gIFVua25vd24g eGwuY2ZnIGVudHJpZXMgYXJlIGlnbm9yZWQKPj4+IChmb3IgYmV0dGVyIG9yIGZvciB3b3JzZSk7 IGluIHRoZSBmdXR1cmUsIHdoZW4gdGhlICJmYWtlIGh0IiB0aGluZyBpcwo+Pj4gcmVwbGFjZWQs IHdlIGNhbiBlaXRoZXIgY29udGludWUgaWdub3JpbmcgaXQsIG9yIGdpdmUgYSB1c2VmdWwgZXJy b3IKPj4+IG1lc3NhZ2Ugc2F5aW5nIGhvdyBpdCBzaG91bGQgYmUgY2hhbmdlZC4KPj4+Cj4+PiAy YS4gIFdlIGNvdWxkIGhhdmUgdGhlIGNvbmZpZyBvcHRpb24gKnJlcGxhY2UqIHRoZSBlbnZpcm9u bWVudCB2YXJpYWJsZTsKPj4+IGluIHdoaWNoIGNhc2Ugd2UnZCBsZWF2ZSBsaWJ2aXJ0IHVzZXJz IGhpZ2ggYW5kIGRyeQo+Pj4KPj4+IDJiLiBXZSBjb3VsZCBoYXZlIHRoZSBjb25maWcgb3B0aW9u IGNhdXNlIHhsIHRvICpzZXQqIHRoZSBlbnZpcm9ubWVudAo+Pj4gdmFyaWFibGUsIHdoaWNoIHNo b3VsZCBjb250aW51ZSB0byBhbGxvdyBvdGhlciB0b29sc3RhY2tzIChldmVuIHRob3NlCj4+PiBu b3QgdXNpbmcgbGlieGwpIHRvIHBvdGVudGlhbGx5IHdvcmsgYXJvdW5kIHRoZSBpc3N1ZS4KPj4K Pj4gQW5kIGhvdyB3b3VsZCBhbnkgb2YgdGhlc2UgYWxsb3cgdG8gZGVhbCB3aXRoIGhldGVyb2dl bmVvdXMgc2V0cyBvZgo+PiBndWVzdHM/Cj4gCj4gQXJlIHlvdSBwZXJoYXBzIGNvbmZ1c2luZyAn eGwuY2ZnJyAod2hpY2ggaXMgdGhlIHBlci1kb21haW4KPiBjb25maWd1cmF0aW9uIGZpbGUpIHdp dGggJ3hsLmNvbmYnICh3aGljaCBpcyB0aGUgc3lzdGVtLXdpZGUKPiBjb25maWd1cmF0aW9uIGZp bGUpPwoKT2gsIGluZGVlZCBJIHdhcy4gSSdtIG5vdCB1c2VkIHRvIGFueSBzdWZmaXhlcyBvbiBk b21haW4gY29uZmlnCmZpbGVzLiBJJ20gc29ycnkuCgpKYW4KCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRl dmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFp bG1hbi9saXN0aW5mby94ZW4tZGV2ZWw=