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[209.132.180.67]) by mx.google.com with ESMTP id s20si15763086eja.63.2019.10.16.09.18.25; Wed, 16 Oct 2019 09:18:48 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2393882AbfJPOOv (ORCPT + 99 others); Wed, 16 Oct 2019 10:14:51 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:43973 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733190AbfJPOOv (ORCPT ); Wed, 16 Oct 2019 10:14:51 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-42-n70HJVILM5a2mE4Rqq_eYQ-1; Wed, 16 Oct 2019 15:14:46 +0100 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Wed, 16 Oct 2019 15:14:45 +0100 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Wed, 16 Oct 2019 15:14:45 +0100 From: David Laight To: 'Paolo Bonzini' , Xiaoyao Li , Thomas Gleixner CC: Sean Christopherson , Fenghua Yu , Ingo Molnar , Borislav Petkov , H Peter Anvin , Peter Zijlstra , Andrew Morton , "Dave Hansen" , Radim Krcmar , Ashok Raj , Tony Luck , Dan Williams , Sai Praneeth Prakhya , Ravi V Shankar , linux-kernel , x86 , "kvm@vger.kernel.org" Subject: RE: [PATCH v9 09/17] x86/split_lock: Handle #AC exception for split lock Thread-Topic: [PATCH v9 09/17] x86/split_lock: Handle #AC exception for split lock Thread-Index: AQHVhCstE/dfMnN6K0OvT2lXBD77H6ddTnvg Date: Wed, 16 Oct 2019 14:14:45 +0000 Message-ID: <053924e2d08b4744b9fd10337e83ab2d@AcuMS.aculab.com> References: <1560897679-228028-1-git-send-email-fenghua.yu@intel.com> <1560897679-228028-10-git-send-email-fenghua.yu@intel.com> <20190626203637.GC245468@romley-ivt3.sc.intel.com> <20190925180931.GG31852@linux.intel.com> <3ec328dc-2763-9da5-28d6-e28970262c58@redhat.com> <57f40083-9063-5d41-f06d-fa1ae4c78ec6@redhat.com> <3a12810b-1196-b70a-aa2e-9fe17dc7341a@redhat.com> In-Reply-To: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 X-MC-Unique: n70HJVILM5a2mE4Rqq_eYQ-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Rm9yIHRoZSBzbXQgY2FzZSwgY2FuIHlvdSBtYWtlICNBQyBlbmFibGUgYSBwcm9wZXJ0eSBvZiB0 aGUgcHJvY2Vzcz8NClRoZW4gZGlzYWJsZSBpdCBvbiB0aGUgY29yZSBpZiBlaXRoZXIgc210IHBy b2Nlc3MgcmVxdWlyZXMgaXQgYmUgZGlzYWJsZWQ/DQoNClRoaXMgd291bGQgbWVhbiB0aGF0IGlz IGEgJ21peGVkIGVudmlyb25tZW50JyBub3QgYWxsIHNwbGl0IGFjY2Vzc2VzDQp3b3VsZCBhY3R1 YWxseSBnZW5lcmF0ZSAjQUMgLSBidXQgZW5vdWdoIHdvdWxkIHRvIGRldGVjdCBicm9rZW4gY29k ZQ0KdGhhdCBkb2Vzbid0IGhhdmUgI0FDIGV4cGxpY2l0bHkgZGlzYWJsZWQuDQoNCkknbSBub3Qg c3VyZSB5b3UnZCB3YW50IGEgZ3Vlc3QgdG8gZmxpcCAjQUMgZW5hYmxlIGJhc2VkIG9uIHRoZSBw cm9jZXNzDQppdCBpcyBzY2hlZHVsaW5nLCBidXQgaXQgbWlnaHQgd29yayBmb3IgdGhlIGJhc2Ug bWV0YWwgc2NoZWR1bGVyLg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExha2Vz aWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQsIFVL DQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K