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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, 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 B72E0C433B4 for ; Sun, 9 May 2021 15:51:51 +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 305DD610CD for ; Sun, 9 May 2021 15:51:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 305DD610CD 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 ([::1]:59774 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lflig-0008WJ-AA for qemu-devel@archiver.kernel.org; Sun, 09 May 2021 11:51:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49068) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lflhX-0006TS-DJ for qemu-devel@nongnu.org; Sun, 09 May 2021 11:50:39 -0400 Received: from indium.canonical.com ([91.189.90.7]:58244) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lflhV-000160-S1 for qemu-devel@nongnu.org; Sun, 09 May 2021 11:50:39 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.93 #5 (Debian)) id 1lflhU-0003nX-Ch for ; Sun, 09 May 2021 15:50:36 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 5F1C72E8139 for ; Sun, 9 May 2021 15:50:36 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Sun, 09 May 2021 15:45:07 -0000 From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <1879646@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=Invalid; importance=Undecided; assignee=None; X-Launchpad-Bug-Tags: i386 X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: philmd X-Launchpad-Bug-Reporter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9_=28philmd?= =?utf-8?q?=29?= X-Launchpad-Bug-Modifier: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9_=28philmd?= =?utf-8?q?=29?= References: <158996169456.22050.5633849401809444729.malonedeb@wampee.canonical.com> Message-Id: <162057510740.7144.17393221593080458391.malone@gac.canonical.com> Subject: [Bug 1879646] Re: [Feature request] x86: dump MSR features in human form 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="dccd804998035922efb3da0a725ecc923e2255f3"; Instance="production" X-Launchpad-Hash: ebb13921522c84e9c1de1055d7adbe9f95e9a89c Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-Spam_score_int: -66 X-Spam_score: -6.7 X-Spam_bar: ------ X-Spam_report: (-6.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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 1879646 <1879646@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is an automated cleanup. This bug report has been moved to QEMU's new bug tracker on gitlab.com and thus gets marked as 'invalid' now. Please continue with the discussion here: https://gitlab.com/qemu-project/qemu/-/issues/237 ** Changed in: qemu Status: New =3D> Invalid ** Bug watch added: gitlab.com/qemu-project/qemu/-/issues #237 https://gitlab.com/qemu-project/qemu/-/issues/237 -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1879646 Title: [Feature request] x86: dump MSR features in human form Status in QEMU: Invalid Bug description: QEMU might fail because host/guest cpu features are not properly configured: qemu-system-x86_64: error: failed to set MSR 0x48f to 0x7fefff00036dfb qemu-system-x86_64: /root/qemu-master/target/i386/kvm.c:2695: kvm_buf_set_msrs: Assertion `ret =3D=3D cpu->kvm_msr_buf->nmsrs' failed. To ease debugging, it the MSR features bit could be dumped. Example in this thread: https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05593.html The high 32 bits are 0111 1111 1110 1111 1111 1111. The low 32 bits are 0000 0011 0110 1101 1111 1011. The features that are set are the xor, so 0111 1100 1000 0010 0000 0100: - bit 2, vmx-exit-nosave-debugctl - bit 9, host address space size, is handled automatically by QEMU - bit 15, vmx-exit-ack-intr - bit 17, vmx-exit-save-pat - bit 18, vmx-exit-load-pat - bit 19, vmx-exit-save-efer - bit 20, vmx-exit-load-efer - bit 21, vmx-exit-save-preemption-timer This output ^^^ is easier to digest. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1879646/+subscriptions