From nobody Tue Apr 7 16:36:36 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5F652ECAAA1 for ; Tue, 30 Aug 2022 12:40:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229658AbiH3MkD (ORCPT ); Tue, 30 Aug 2022 08:40:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51396 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229673AbiH3Mj6 (ORCPT ); Tue, 30 Aug 2022 08:39:58 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 341481100; Tue, 30 Aug 2022 05:39:47 -0700 (PDT) Received: from dggpeml500024.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4MH6GL1ycTzYcmn; Tue, 30 Aug 2022 20:35:22 +0800 (CST) Received: from dggpeml500010.china.huawei.com (7.185.36.155) by dggpeml500024.china.huawei.com (7.185.36.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Tue, 30 Aug 2022 20:39:45 +0800 Received: from huawei.com (10.67.175.33) by dggpeml500010.china.huawei.com (7.185.36.155) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Tue, 30 Aug 2022 20:39:45 +0800 From: Lin Yujun To: , , , , , , , , , CC: , Subject: [PATCH -next] Documentation/hw-vuln: Update spectre doc Date: Tue, 30 Aug 2022 20:36:14 +0800 Message-ID: <20220830123614.23007-1-linyujun809@huawei.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [10.67.175.33] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpeml500010.china.huawei.com (7.185.36.155) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" commit 7c693f54c873691 ("x86/speculation: Add spectre_v2=3Dibrs option to support Kernel IBRS") adds the "ibrs " option in Documentation/admin-guide/kernel-parameters.txt but omits it to Documentation/admin-guide/hw-vuln/spectre.rst, add it. Signed-off-by: Lin Yujun --- Documentation/admin-guide/hw-vuln/spectre.rst | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/admin-guide/hw-vuln/spectre.rst b/Documentation/= admin-guide/hw-vuln/spectre.rst index 2ce2a38cdd55..c4dcdb3d0d45 100644 --- a/Documentation/admin-guide/hw-vuln/spectre.rst +++ b/Documentation/admin-guide/hw-vuln/spectre.rst @@ -613,6 +613,7 @@ kernel command line. eibrs enhanced IBRS eibrs,retpoline enhanced IBRS + Retpolines eibrs,lfence enhanced IBRS + LFENCE + ibrs use IBRS to protect kernel =20 Not specifying this option is equivalent to spectre_v2=3Dauto. --=20 2.17.1