From patchwork Tue Feb 16 02:12:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Isaku Yamahata X-Patchwork-Id: 12089423 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=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 DDD5FC433DB for ; Tue, 16 Feb 2021 02:16:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B109764DE8 for ; Tue, 16 Feb 2021 02:16:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229912AbhBPCQM (ORCPT ); Mon, 15 Feb 2021 21:16:12 -0500 Received: from mga06.intel.com ([134.134.136.31]:39372 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229917AbhBPCQA (ORCPT ); Mon, 15 Feb 2021 21:16:00 -0500 IronPort-SDR: OYNQ6fj47iEVKCaiNZ93vA3Z9sAoMs//4564C/GFGfpOikwj3elFlpnED3WBq9Qk1T1ED1dpGD TzyZ552Imt7g== X-IronPort-AV: E=McAfee;i="6000,8403,9896"; a="244270195" X-IronPort-AV: E=Sophos;i="5.81,182,1610438400"; d="scan'208";a="244270195" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Feb 2021 18:14:50 -0800 IronPort-SDR: 88S/oG2rYJg2xdPWaXvCFlX3HqKmlM8Ss/MBBUfayAfAiDqClhEX847js5vB1fRc+BXgEGdm2j lwoBExg6gACQ== X-IronPort-AV: E=Sophos;i="5.81,182,1610438400"; d="scan'208";a="591705386" Received: from ls.sc.intel.com (HELO localhost) ([143.183.96.54]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Feb 2021 18:14:50 -0800 From: Isaku Yamahata To: qemu-devel@nongnu.org, pbonzini@redhat.com, alistair@alistair23.me, ehabkost@redhat.com, marcel.apfelbaum@gmail.com, mst@redhat.com, cohuck@redhat.com, mtosatti@redhat.com, xiaoyao.li@intel.com, seanjc@google.com Cc: kvm@vger.kernel.org, isaku.yamahata@gmail.com, isaku.yamahata@intel.com Subject: [RFC PATCH 02/23] kvm: Switch KVM_CAP_READONLY_MEM to a per-VM ioctl() Date: Mon, 15 Feb 2021 18:12:58 -0800 Message-Id: <1c93f5dabe2ef573302ff362c0c6c525bbe8af43.1613188118.git.isaku.yamahata@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Switch to making a VM ioctl() call for KVM_CAP_READONLY_MEM, which may be conditional on VM type in recent versions of KVM, e.g. when TDX is supported. Signed-off-by: Isaku Yamahata --- accel/kvm/kvm-all.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 47516913b7..351c25a5cb 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -2164,7 +2164,7 @@ static int kvm_init(MachineState *ms) } kvm_readonly_mem_allowed = - (kvm_check_extension(s, KVM_CAP_READONLY_MEM) > 0); + (kvm_vm_check_extension(s, KVM_CAP_READONLY_MEM) > 0); kvm_eventfds_allowed = (kvm_check_extension(s, KVM_CAP_IOEVENTFD) > 0);