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[2620:137:e000::1:20]) by mx.google.com with ESMTP id d10-20020a63734a000000b00478e3c07ee0si1584978pgn.385.2022.12.06.06.49.49; Tue, 06 Dec 2022 06:50:08 -0800 (PST) Received-SPF: pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234618AbiLFOoZ (ORCPT + 99 others); Tue, 6 Dec 2022 09:44:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43644 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234139AbiLFOoY (ORCPT ); Tue, 6 Dec 2022 09:44:24 -0500 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.86.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5351C23399 for ; Tue, 6 Dec 2022 06:44:21 -0800 (PST) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-281-LsLMPZAZOU6vU66casKxsQ-1; Tue, 06 Dec 2022 14:44:18 +0000 X-MC-Unique: LsLMPZAZOU6vU66casKxsQ-1 Received: from AcuMS.Aculab.com (10.202.163.6) by AcuMS.aculab.com (10.202.163.6) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Tue, 6 Dec 2022 14:44:17 +0000 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.044; Tue, 6 Dec 2022 14:44:17 +0000 From: David Laight To: 'Peter Lafreniere' , Herbert Xu CC: "Elliott, Robert (Servers)" , "Jason A. Donenfeld" , "davem@davemloft.net" , "tim.c.chen@linux.intel.com" , "ap420073@gmail.com" , "ardb@kernel.org" , "ebiggers@kernel.org" , "linux-crypto@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: RE: [PATCH v4 10/24] crypto: x86/poly - limit FPU preemption Thread-Topic: [PATCH v4 10/24] crypto: x86/poly - limit FPU preemption Thread-Index: AQHZCXuUthnlIbrum024abYi187HBa5g7Jiw Date: Tue, 6 Dec 2022 14:44:17 +0000 Message-ID: <4f72e36f960347b29d1d6b3e59cdb8a2@AcuMS.aculab.com> References: <20221103042740.6556-1-elliott@hpe.com> <20221116041342.3841-1-elliott@hpe.com> <20221116041342.3841-11-elliott@hpe.com> <5TnEjVPNm7Eyw-GH7C0LeJJvgRSpOLb2NUshnG407s3TGTXL1lq4RpsoAMTpVGKWk7tVxDI5f2G9aH6lDbATR6QqXXkE7q54o7TUzO91ibI=@n8pjl.ca> In-Reply-To: <5TnEjVPNm7Eyw-GH7C0LeJJvgRSpOLb2NUshnG407s3TGTXL1lq4RpsoAMTpVGKWk7tVxDI5f2G9aH6lDbATR6QqXXkE7q54o7TUzO91ibI=@n8pjl.ca> Accept-Language: en-GB, 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-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org RnJvbTogUGV0ZXIgTGFmcmVuaWVyZQ0KPiBTZW50OiAwNiBEZWNlbWJlciAyMDIyIDE0OjA0DQo+ DQo+ID4gPiA+IEJUVywganVzdCBhIG1pbm9yIG5pdCBidXQgeW91IGNhbiBkZWxldGUgdGhlIGNv bmRfcmVzY2hlZCgpIGNhbGwNCj4gPiA+ID4gYmVjYXVzZSBrZXJuZWxfZnB1X2VuZCgpL3ByZWVt cHRfZW5hYmxlKCkgd2lsbCBkbyBpdCBhbnl3YXkuDQo+ID4gPg0KPiA+ID4gVGhhdCBoYXBwZW5z IHVuZGVyDQo+ID4gPiBDT05GSUdfUFJFRU1QVElPTj15DQo+ID4gPiAoZnJvbSBpbmNsdWRlL0xp bnV4L3ByZWVtcHQuaCBhbmQgYXJjaC94ODYvaW5jbHVkZS9hc20vcHJlZW1wdC5oKQ0KPiA+ID4N Cj4gPiA+IElzIGNhbGxpbmcgY29uZF9yZXNjaGVkKCkgc3RpbGwgaGVscGZ1bCBpZiB0aGF0IGlz IG5vdCB0aGUgY29uZmlndXJhdGlvbj8NCj4gPg0KPiA+DQo+ID4gUGVyaGFwcywgYnV0IHRoZW4g YWdhaW4gcGVyaGFwcyBpZiBwcmVlbXB0aW9uIGlzIG9mZiwgbWF5YmUgd2UNCj4gPiBzaG91bGRu J3QgZXZlbiBib3RoZXIgd2l0aCB0aGUgNEsgc3BsaXQuIFdlcmUgdGhlIGluaXRpYWwNCj4gPiB3 YXJuaW5ncyB3aXRoIG9yIHdpdGhvdXQgcHJlZW1wdGlvbj8NCj4gPg0KPiA+IFBlcnNvbmFsbHkg SSBkb24ndCByZWFsbHkgY2FyZSBzaW5jZSBJIGFsd2F5cyB1c2UgcHJlZW1wdGlvbi4NCj4gPg0K PiA+IFRoZSBQUkVFTVBUIEtjb25maWdzIGRvIHByb3ZpZGUgYSBiaXQgb2YgbnVhbmNlIHdpdGgg dGhlIHNwbGl0DQo+ID4gYmV0d2VlbiBQUkVFTVBUX05PTkUgdnMuIFBSRUVNUFRfVk9MVU5UQVJZ LiBCdXQgcGVyaGFwcyB0aGF0IGlzDQo+ID4ganVzdCBvdmVya2lsbCBmb3Igb3VyIHNpdHVhdGlv bi4NCj4gDQo+IEkgd2FzIHRoaW5raW5nIGFib3V0IHRoaXMgYSBmZXcgZGF5cyBhZ28sIGFuZCBt eSAywqIgaXMgdGhhdCBpdCdzDQo+IHByb2JhYmx5IGJlc3QgdG8gbm90IHByZWVtcHQgdGhlIGtl cm5lbCBpbiB0aGUgbWlkZGxlIG9mIGEgY3J5cHRvDQo+IG9wZXJhdGlvbiB1bmRlciBQUkVFTVBU X1ZPTFVOVEFSWS4gV2UncmUgYWxyZWFkeSBub3QgcHJlZW1wdGluZyBkdXJpbmcNCj4gdGhlc2Ug b3BlcmF0aW9ucywgYW5kIHRoZXJlIGhhdmVuJ3QgYmVlbiBjb21wbGFpbnRzIG9mIGV4Y2Vzc2l2 ZSBsYXRlbmN5DQo+IGJlY2F1c2Ugb2YgdGhlc2UgY3J5cHRvIG9wZXJhdGlvbnMuDQouLi4NCg0K UHJvYmFibHkgYmVjYXVzZSB0aGUgcGVvcGxlIHdobyBoYXZlIGJlZW4gc3VmZmVyaW5nIGZyb20g KGFuZA0KbG9va2luZyBmb3IpIGxhdGVuY3kgaXNzdWVzIGFyZW4ndCBydW5uaW5nIGNyeXB0byB0 ZXN0cy4NCg0KSSd2ZSBmb3VuZCBzb21lIHRlcnJpYmxlIHByZS1lbXB0aW9uIGxhdGVuY3kgaXNz dWVzIHRyeWluZw0KdG8gZ2V0IFJUIHByb2Nlc3NlcyBzY2hlZHVsZWQgaW4gYSBzZW5zaWJsZSB0 aW1lZnJhbWUuDQpJIHdvdWxkbid0IHdvcnJ5IGFib3V0IDEwMHVzIC0gSSdtIGRvaW5nIGF1ZGlv IHByb2Nlc3NpbmcNCmV2ZXJ5IDEwbXMsIGJ1dCBhbnl0aGluZyBtdWNoIGxvbmdlciBjYXVzZXMg cHJvYmxlbXMgd2hlbg0KdHJ5aW5nIHRvIHVzZSA5MCslIG9mIHRoZSBjcHUgdGltZSBmb3IgbG90 cyBvZiBhdWRpbyBjaGFubmVscy4NCg0KSSBkaWRuJ3QgdHJ5IGEgQ09ORklHX1JUIGtlcm5lbCwg dGhlIGFwcGxpY2F0aW9uIG5lZWRzIHRvIHJ1bg0Kb24gYSBzdGFuZGFyZCAnZGlzdHJvJyBrZXJu ZWwuIEluIGFueSBjYXNlIEkgc3VzcGVjdCBhbGwgdGhlDQpleHRyYSBwcm9jZXNzZXMgc3dpdGNo ZXMgKGV0YykgdGhlIFJUIGtlcm5lbCBhZGRzIHdpbGwgY29tcGxldGVseQ0Ka2lsbCBwZXJmb3Jt YW5jZS4NCg0KSSB3b25kZXIgaG93IG11Y2ggaXQgd291bGQgY29zdCB0byBtZWFzdXJlIHRoZSB0 aW1lIHNwZW50IHdpdGgNCnByZS1lbXB0IGRpc2FibGVkIChhbmQgbm90IGNoZWNrZWQpIGFuZCB0 byB0cmFjZSBsb25nIGludGVydmFscy4NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVz cyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEg MVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==