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=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,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 66C80C43142 for ; Tue, 26 Jun 2018 14:26:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 21D9A26C49 for ; Tue, 26 Jun 2018 14:26:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 21D9A26C49 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935850AbeFZO0T (ORCPT ); Tue, 26 Jun 2018 10:26:19 -0400 Received: from mga11.intel.com ([192.55.52.93]:6711 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935975AbeFZOW4 (ORCPT ); Tue, 26 Jun 2018 10:22:56 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Jun 2018 07:22:55 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,274,1526367600"; d="scan'208";a="240770221" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga006.fm.intel.com with ESMTP; 26 Jun 2018 07:22:53 -0700 Received: by black.fi.intel.com (Postfix, from userid 1000) id 28CD6951; Tue, 26 Jun 2018 17:22:52 +0300 (EEST) From: "Kirill A. Shutemov" To: Ingo Molnar , x86@kernel.org, Thomas Gleixner , "H. Peter Anvin" , Tom Lendacky Cc: Dave Hansen , Kai Huang , Jacob Pan , linux-kernel@vger.kernel.org, linux-mm@kvack.org, "Kirill A. Shutemov" Subject: [PATCHv4 14/18] x86/mm: Detect MKTME early Date: Tue, 26 Jun 2018 17:22:41 +0300 Message-Id: <20180626142245.82850-15-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180626142245.82850-1-kirill.shutemov@linux.intel.com> References: <20180626142245.82850-1-kirill.shutemov@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We need to know number of KeyIDs before KALSR is initialized. Number of KeyIDs would determinate how much address space would be needed for per-KeyID direct mapping. KALSR initialization happens before full CPU initizliation is complete. Move detect_tme() call to early_init_intel(). Signed-off-by: Kirill A. Shutemov --- arch/x86/kernel/cpu/intel.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 75e3b2602b4a..39830806dd42 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -158,6 +158,8 @@ static bool bad_spectre_microcode(struct cpuinfo_x86 *c) return false; } +static void detect_tme(struct cpuinfo_x86 *c); + static void early_init_intel(struct cpuinfo_x86 *c) { u64 misc_enable; @@ -301,6 +303,9 @@ static void early_init_intel(struct cpuinfo_x86 *c) } check_mpx_erratum(c); + + if (cpu_has(c, X86_FEATURE_TME)) + detect_tme(c); } #ifdef CONFIG_X86_32 @@ -766,9 +771,6 @@ static void init_intel(struct cpuinfo_x86 *c) if (cpu_has(c, X86_FEATURE_VMX)) detect_vmx_virtcap(c); - if (cpu_has(c, X86_FEATURE_TME)) - detect_tme(c); - init_intel_energy_perf(c); init_intel_misc_features(c); -- 2.18.0