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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 DEADEC0650F for ; Tue, 30 Jul 2019 15:13:00 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B0AE820657 for ; Tue, 30 Jul 2019 15:13:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B0AE820657 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:33788 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hsToA-0004W8-IQ for qemu-devel@archiver.kernel.org; Tue, 30 Jul 2019 11:13:00 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41629) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hsTmL-00040l-JG for qemu-devel@nongnu.org; Tue, 30 Jul 2019 11:11:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hsTmK-0005oo-Cv for qemu-devel@nongnu.org; Tue, 30 Jul 2019 11:11:05 -0400 Received: from indium.canonical.com ([91.189.90.7]:42430) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hsTmK-0005oC-70 for qemu-devel@nongnu.org; Tue, 30 Jul 2019 11:11:04 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1hsTmI-0002Gy-IS for ; Tue, 30 Jul 2019 15:11:02 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 1FB442E80CC for ; Tue, 30 Jul 2019 15:11:02 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Tue, 30 Jul 2019 15:00:09 -0000 From: Peter Maydell 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: arm tcg X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: elouan-appere pmaydell X-Launchpad-Bug-Reporter: =?utf-8?q?Elouan_App=C3=A9r=C3=A9_=28elouan-apper?= =?utf-8?q?e=29?= X-Launchpad-Bug-Modifier: Peter Maydell (pmaydell) References: <156441235921.17753.6613889826588806043.malonedeb@gac.canonical.com> Message-Id: <156449881062.20461.4065179426121337713.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="19012"; Instance="launchpad-lazr.conf" X-Launchpad-Hash: 08908e8bcef4b6bfeb851d74c12a06b2bdae8ea9 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 1838277] Re: qemu-system-aarch64: regression in 3.1: breakpoint instructions always routed to EL_D even when current EL is higher X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1838277 <1838277@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" ** Changed in: qemu Status: New =3D> In Progress -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1838277 Title: qemu-system-aarch64: regression in 3.1: breakpoint instructions always routed to EL_D even when current EL is higher Status in QEMU: In Progress Bug description: Affects 3.1.0 (latest stable release) and latest commit (893dc8300c80e3dc32f31e968cf7aa0904da50c3) but did *not* affect 2.11 (qemu from bionic ubuntu LTS). With the following code and shell commands: test.s: .text mov x0, #0x60000000 msr vbar_el2, x0 dsb sy isb sy $ aarch64-none-elf-as test.s -o test.o $ aarch64-none-elf-objcopy -S -O binary test.o test.bin $ qemu-system-aarch64 -nographic -machine virt,virtualization=3Don -cpu c= ortex-a57 -kernel test.bin -s -S vbar_el2 is still 0 after the code, instead of being the expected 0x60000000. (see screenshot). This regression doesn't seem to happen for vbar_el1 & virtualization=3Doff. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1838277/+subscriptions