From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:34247) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hH6Bs-0002Uo-UG for qemu-devel@nongnu.org; Thu, 18 Apr 2019 08:30:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hH6Br-0002gf-U7 for qemu-devel@nongnu.org; Thu, 18 Apr 2019 08:30:56 -0400 Received: from indium.canonical.com ([91.189.90.7]:51666) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hH6Bp-0002cM-SJ for qemu-devel@nongnu.org; Thu, 18 Apr 2019 08:30:55 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1hH6Bm-0004A7-57 for ; Thu, 18 Apr 2019 12:30:50 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 244F42E80CD for ; Thu, 18 Apr 2019 12:30:50 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Thu, 18 Apr 2019 12:20:37 -0000 From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <1825311@bugs.launchpad.net> Reply-To: Bug 1825311 <1825311@bugs.launchpad.net> Sender: bounces@canonical.com References: <155557460746.17507.17649109204793492383.malonedeb@soybean.canonical.com> Message-Id: <155559003801.6930.14918513300290532894.launchpad@chaenomeles.canonical.com> Errors-To: bounces@canonical.com Subject: [Qemu-devel] [Bug 1825311] Re: mips_cpu_handle_mmu_fault renders all accessed pages executable List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org ** Tags added: mips -- = 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: New 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 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=-0.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 6D38BC10F0E for ; Thu, 18 Apr 2019 12:32:38 +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 E019221479 for ; Thu, 18 Apr 2019 12:32:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E019221479 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]:40887 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hH6DV-0003Ee-0B for qemu-devel@archiver.kernel.org; Thu, 18 Apr 2019 08:32:37 -0400 Received: from eggs.gnu.org ([209.51.188.92]:34247) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hH6Bs-0002Uo-UG for qemu-devel@nongnu.org; Thu, 18 Apr 2019 08:30:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hH6Br-0002gf-U7 for qemu-devel@nongnu.org; Thu, 18 Apr 2019 08:30:56 -0400 Received: from indium.canonical.com ([91.189.90.7]:51666) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hH6Bp-0002cM-SJ for qemu-devel@nongnu.org; Thu, 18 Apr 2019 08:30:55 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1hH6Bm-0004A7-57 for ; Thu, 18 Apr 2019 12:30:50 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 244F42E80CD for ; Thu, 18 Apr 2019 12:30:50 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Date: Thu, 18 Apr 2019 12:20:37 -0000 From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <1825311@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=New; 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 X-Launchpad-Bug-Reporter: Jakub Jermar (jakub) X-Launchpad-Bug-Modifier: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9_=28philmd?= =?utf-8?q?=29?= References: <155557460746.17507.17649109204793492383.malonedeb@soybean.canonical.com> Message-Id: <155559003801.6930.14918513300290532894.launchpad@chaenomeles.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="18928"; Instance="launchpad-lazr.conf" X-Launchpad-Hash: e8e41604707cc92d798202250b620f3393ac80d9 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" Message-ID: <20190418122037.NS_d90w6usjMW1ze12fJujhJxW09RrmGucVfHfb4bDM@z> ** Tags added: mips -- = 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: New 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