From patchwork Fri Oct 27 02:25:22 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Haozhong Zhang X-Patchwork-Id: 10028977 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C49206022E for ; Fri, 27 Oct 2017 02:26:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B026D28EC4 for ; Fri, 27 Oct 2017 02:26:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A39B428EC9; Fri, 27 Oct 2017 02:26:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4AD0E28EC4 for ; Fri, 27 Oct 2017 02:26:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932345AbdJ0C0H (ORCPT ); Thu, 26 Oct 2017 22:26:07 -0400 Received: from mga07.intel.com ([134.134.136.100]:5877 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751960AbdJ0C0F (ORCPT ); Thu, 26 Oct 2017 22:26:05 -0400 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga105.jf.intel.com with ESMTP; 26 Oct 2017 19:26:04 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.44,303,1505804400"; d="scan'208";a="914265531" Received: from hz-desktop.sh.intel.com (HELO localhost) ([10.239.159.142]) by FMSMGA003.fm.intel.com with ESMTP; 26 Oct 2017 19:25:58 -0700 From: Haozhong Zhang To: kvm@vger.kernel.org, x86@kernel.org Cc: linux-kernel@vger.kernel.org, Paolo Bonzini , rkrcmar@redhat.com, Xiao Guangrong , Dan Williams , ivan.d.cuevas.escareno@intel.com, karthik.kumar@intel.com, Haozhong Zhang , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Borislav Petkov , Tom Lendacky , Mikulas Patocka Subject: [PATCH 1/3] x86/mm: expose track_pfn_insert() Date: Fri, 27 Oct 2017 10:25:22 +0800 Message-Id: <20171027022524.22589-2-haozhong.zhang@intel.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20171027022524.22589-1-haozhong.zhang@intel.com> References: <20171027022524.22589-1-haozhong.zhang@intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP KVM MMU will use it to get the cache mode of the host pfn. Signed-off-by: Haozhong Zhang --- arch/x86/mm/pat.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index fe7d57a8fb60..cab593ea8956 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -998,6 +998,7 @@ void track_pfn_insert(struct vm_area_struct *vma, pgprot_t *prot, pfn_t pfn) *prot = __pgprot((pgprot_val(*prot) & (~_PAGE_CACHE_MASK)) | cachemode2protval(pcm)); } +EXPORT_SYMBOL_GPL(track_pfn_insert); /* * untrack_pfn is called while unmapping a pfnmap for a region.