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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 5FAADC2BA2B for ; Thu, 16 Apr 2020 20:58:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 468CE221F7 for ; Thu, 16 Apr 2020 20:58:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728806AbgDPU6E (ORCPT ); Thu, 16 Apr 2020 16:58:04 -0400 Received: from mga03.intel.com ([134.134.136.65]:8859 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727983AbgDPU6A (ORCPT ); Thu, 16 Apr 2020 16:58:00 -0400 IronPort-SDR: dVOww/gUG3nahn+hxtXmDfRwDIGJZBxE2pIZUtg7nxcRPyTtIB2lEXgHh6YXq/vPJ+Gv14OuE1 xi5yHl4W9R+g== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Apr 2020 13:57:56 -0700 IronPort-SDR: EapNLMT0sdeJVT8AAYK4BgkWIX1d4l15yqiyzp8Ss1n6DvQ0E1XYZ4Eu+Q8M/6WHAP3v0zXtfG JxQzMn3uLqHQ== X-IronPort-AV: E=Sophos;i="5.72,392,1580803200"; d="scan'208";a="427982534" Received: from agluck-desk2.sc.intel.com ([10.3.52.68]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Apr 2020 13:57:55 -0700 From: Tony Luck To: Thomas Gleixner Cc: Tony Luck , Ingo Molnar , Fenghua Yu , Borislav Petkov , H Peter Anvin , Ashok Raj , Ravi V Shankar , Sean Christopherson , Andy Lutomirski , linux-kernel@vger.kernel.org, x86@kernel.org Subject: [PATCH 3/3] x86/split_lock: Add Tremont family CPU models Date: Thu, 16 Apr 2020 13:57:54 -0700 Message-Id: <20200416205754.21177-4-tony.luck@intel.com> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200416205754.21177-1-tony.luck@intel.com> References: <20200416205754.21177-1-tony.luck@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tremont CPUs support IA32_CORE_CAPABILITIES bits to indicate whether speciifc SKUs have support for split lock detection. Fixes: 6650cdd9a8cc ("x86/split_lock: Enable split lock detection by kernel") Cc: Signed-off-by: Tony Luck --- arch/x86/kernel/cpu/intel.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 3b43b2c91054..d559481b54a6 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -1130,6 +1130,9 @@ void switch_to_sld(unsigned long tifn) static const struct x86_cpu_id split_lock_cpu_ids[] __initconst = { X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_X, 0), X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, 0), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT, 1), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D, 1), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_L, 1), {} }; -- 2.21.1