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=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 E54D0C00523 for ; Wed, 8 Jan 2020 08:37:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C3557206DA for ; Wed, 8 Jan 2020 08:37:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727408AbgAHIhy (ORCPT ); Wed, 8 Jan 2020 03:37:54 -0500 Received: from szxga01-in.huawei.com ([45.249.212.187]:2921 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726313AbgAHIhx (ORCPT ); Wed, 8 Jan 2020 03:37:53 -0500 Received: from DGGEMM402-HUB.china.huawei.com (unknown [172.30.72.56]) by Forcepoint Email with ESMTP id 7B7B13D67110E36FE76C; Wed, 8 Jan 2020 16:37:49 +0800 (CST) Received: from dggeme766-chm.china.huawei.com (10.3.19.112) by DGGEMM402-HUB.china.huawei.com (10.3.20.210) with Microsoft SMTP Server (TLS) id 14.3.439.0; Wed, 8 Jan 2020 16:37:49 +0800 Received: from dggeme763-chm.china.huawei.com (10.3.19.109) by dggeme766-chm.china.huawei.com (10.3.19.112) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Wed, 8 Jan 2020 16:37:48 +0800 Received: from dggeme763-chm.china.huawei.com ([10.6.66.36]) by dggeme763-chm.china.huawei.com ([10.6.66.36]) with mapi id 15.01.1713.004; Wed, 8 Jan 2020 16:37:48 +0800 From: linmiaohe To: Sean Christopherson , Paolo Bonzini CC: Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , "kvm@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] KVM: x86/mmu: Fix a benign Bitwise vs. Logical OR mixup Thread-Topic: [PATCH] KVM: x86/mmu: Fix a benign Bitwise vs. Logical OR mixup Thread-Index: AdXF/gTC8Mase5IDSN6uFk3TkzmHmw== Date: Wed, 8 Jan 2020 08:37:48 +0000 Message-ID: <09ad7e0c69264929a5508eab8833abdc@huawei.com> Accept-Language: en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.173.221.158] Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org SGmjug0KPg0KPlVzZSBhIExvZ2ljYWwgT1IgaW4gX19pc19yc3ZkX2JpdHNfc2V0KCkgdG8gY29t YmluZSB0aGUgdHdvIHJlc2VydmVkIGJpdCBjaGVja3MsIHdoaWNoIGFyZSBvYnZpb3VzbHkgaW50 ZW5kZWQgdG8gYmUgbG9naWNhbCBzdGF0ZW1lbnRzLiAgU3dpdGNoaW5nIHRvIGEgTG9naWNhbCBP UiBpcyBmdW5jdGlvbmFsbHkgYSBub3AsIGJ1dCBhbGxvd3MgdGhlIGNvbXBpbGVyIHRvIGJldHRl ciBvcHRpbWl6ZSB0aGUgY2hlY2tzLg0KPg0KPlNpZ25lZC1vZmYtYnk6IFNlYW4gQ2hyaXN0b3Bo ZXJzb24gPHNlYW4uai5jaHJpc3RvcGhlcnNvbkBpbnRlbC5jb20+DQo+LS0tDQo+IGFyY2gveDg2 L2t2bS9tbXUvbW11LmMgfCAyICstDQo+IDEgZmlsZSBjaGFuZ2VkLCAxIGluc2VydGlvbigrKSwg MSBkZWxldGlvbigtKQ0KPg0KPmRpZmYgLS1naXQgYS9hcmNoL3g4Ni9rdm0vbW11L21tdS5jIGIv YXJjaC94ODYva3ZtL21tdS9tbXUuYyBpbmRleCA3MjY5MTMwZWE1ZTIuLjcyZTg0NTcwOTAyNyAx MDA2NDQNCj4tLS0gYS9hcmNoL3g4Ni9rdm0vbW11L21tdS5jDQo+KysrIGIvYXJjaC94ODYva3Zt L21tdS9tbXUuYw0KPkBAIC0zOTcwLDcgKzM5NzAsNyBAQCBfX2lzX3JzdmRfYml0c19zZXQoc3Ry dWN0IHJzdmRfYml0c192YWxpZGF0ZSAqcnN2ZF9jaGVjaywgdTY0IHB0ZSwgaW50IGxldmVsKSAg ew0KPiAJaW50IGJpdDcgPSAocHRlID4+IDcpICYgMSwgbG93NiA9IHB0ZSAmIDB4M2Y7DQo+IA0K Pi0JcmV0dXJuIChwdGUgJiByc3ZkX2NoZWNrLT5yc3ZkX2JpdHNfbWFza1tiaXQ3XVtsZXZlbC0x XSkgfA0KPisJcmV0dXJuIChwdGUgJiByc3ZkX2NoZWNrLT5yc3ZkX2JpdHNfbWFza1tiaXQ3XVts ZXZlbC0xXSkgfHwNCj4gCQkoKHJzdmRfY2hlY2stPmJhZF9tdF94d3IgJiAoMXVsbCA8PCBsb3c2 KSkgIT0gMCk7ICB9DQo+IA0KPi0tDQo+Mi4yNC4xDQoNCk9uIHRoZSBjYWxsIGNoYWluIHdhbGtf c2hhZG93X3BhZ2VfZ2V0X21taW9fc3B0ZSAtLT4gaXNfc2hhZG93X3plcm9fYml0c19zZXQgLS0+ IF9faXNfcnN2ZF9iaXRzX3NldCwgdGhlDQpyZXR1cm4gdmFsdWUgaXMgdXNlZCBhczoNCglyZXNl cnZlZCB8PSBpc19zaGFkb3dfemVyb19iaXRzX3NldCh2Y3B1LT5hcmNoLm1tdSwgc3B0ZSwNCgkJ aXRlcmF0b3IubGV2ZWwpOw0KDQpCdXQgdGhpcyBzZWVtcyBvayBiZWNhdXNlIHZhbCByZXNlcnZl ZCBpcyBib29sIHR5cGUuDQoNClRoYW5rcy4NCg==