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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 E4DDDC04AB4 for ; Fri, 17 May 2019 09:11:59 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B837B20818 for ; Fri, 17 May 2019 09:11:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B837B20818 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([127.0.0.1]:44975 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hRYuE-0000bX-W5 for qemu-devel@archiver.kernel.org; Fri, 17 May 2019 05:11:59 -0400 Received: from eggs.gnu.org ([209.51.188.92]:35491) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hRYt4-00088e-71 for qemu-devel@nongnu.org; Fri, 17 May 2019 05:10:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hRYt3-0005vJ-7y for qemu-devel@nongnu.org; Fri, 17 May 2019 05:10:46 -0400 Received: from indium.canonical.com ([91.189.90.7]:43790) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hRYt3-0005ug-2Q for qemu-devel@nongnu.org; Fri, 17 May 2019 05:10:45 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1hRYt0-000213-Nl for ; Fri, 17 May 2019 09:10:42 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id AA7EB2E806D for ; Fri, 17 May 2019 09:10:42 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Fri, 17 May 2019 09:00:37 -0000 From: Jakub Jermar <1825311@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=In Progress; importance=Undecided; assignee=None; X-Launchpad-Bug-Tags: mips X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: jakub philmd X-Launchpad-Bug-Reporter: Jakub Jermar (jakub) X-Launchpad-Bug-Modifier: Jakub Jermar (jakub) References: <155557460746.17507.17649109204793492383.malonedeb@soybean.canonical.com> Message-Id: <155808363776.26203.151057070751763125.malone@soybean.canonical.com> X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="18962"; Instance="launchpad-lazr.conf" X-Launchpad-Hash: 995f708793e3456b513854911479a7cd1d762359 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 91.189.90.7 Subject: [Qemu-devel] [Bug 1825311] Re: mips_cpu_handle_mmu_fault renders all accessed pages executable X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1825311 <1825311@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Also attaching the 64-bit version of the reproducer. ** Attachment added: "64-bit version of the reproducer" https://bugs.launchpad.net/qemu/+bug/1825311/+attachment/5264428/+files/= reproducer64.tar.xz -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1825311 Title: mips_cpu_handle_mmu_fault renders all accessed pages executable Status in QEMU: In Progress Bug description: On MIPS, data accesses to pages mapped in the TLB result in mips_cpu_handle_mmu_fault() marking the page unconditionally executable, even if the TLB entry has the XI bit set. Later on, when there is an attempt to execute this page, no exception is generated, even though TLBXI is expected. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1825311/+subscriptions