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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 333C6C07E95 for ; Fri, 2 Jul 2021 22:06:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 162BC6144B for ; Fri, 2 Jul 2021 22:06:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234018AbhGBWIw (ORCPT ); Fri, 2 Jul 2021 18:08:52 -0400 Received: from mga12.intel.com ([192.55.52.136]:50197 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233218AbhGBWIA (ORCPT ); Fri, 2 Jul 2021 18:08:00 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10033"; a="188472754" X-IronPort-AV: E=Sophos;i="5.83,320,1616482800"; d="scan'208";a="188472754" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2021 15:05:27 -0700 X-IronPort-AV: E=Sophos;i="5.83,320,1616482800"; d="scan'208";a="642814805" Received: from ls.sc.intel.com (HELO localhost) ([143.183.96.54]) by fmsmga006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2021 15:05:26 -0700 From: isaku.yamahata@intel.com To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H . Peter Anvin" , Paolo Bonzini , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , erdemaktas@google.com, Connor Kuehl , Sean Christopherson , x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: isaku.yamahata@intel.com, isaku.yamahata@gmail.com, Sean Christopherson Subject: [RFC PATCH v2 40/69] KVM: Export kvm_is_reserved_pfn() for use by TDX Date: Fri, 2 Jul 2021 15:04:46 -0700 Message-Id: <1ef40d74af89c4e347e46412a5d07f6e7eebf839.1625186503.git.isaku.yamahata@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sean Christopherson TDX will use kvm_is_reserved_pfn() to prevent installing a reserved PFN int SEPT. Or rather, to prevent such an attempt, as reserved PFNs are not covered by TDMRs. Signed-off-by: Sean Christopherson Signed-off-by: Isaku Yamahata --- virt/kvm/kvm_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 8b075b5e7303..dd6492b526c9 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -188,6 +188,7 @@ bool kvm_is_reserved_pfn(kvm_pfn_t pfn) return true; } +EXPORT_SYMBOL_GPL(kvm_is_reserved_pfn); bool kvm_is_transparent_hugepage(kvm_pfn_t pfn) { -- 2.25.1