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=-11.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 36BF0C433E6 for ; Mon, 15 Mar 2021 22:11:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F200364F58 for ; Mon, 15 Mar 2021 22:11:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232457AbhCOWKm (ORCPT ); Mon, 15 Mar 2021 18:10:42 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:31353 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232051AbhCOWKd (ORCPT ); Mon, 15 Mar 2021 18:10:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1615846232; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=GO4Svw6p1VObWYcp8yWMtHx+jBqxgLew+cAErGqrrHw=; b=iOHocxDKW/7tzVk3v7vggwlFHrV+L445G6a2xu41UO9KsVBrRhHCTuMd46Yjf1UBysdtwZ UYvo8ZXprAE/m2KkGDHAhGpN3lXzGGQx0gk2bR+az36Qq/coLvn4pZ6rvstjwGOwc/HhsX e3PhNEWNyaMJ/N67Qd0IylmSNGQXZVw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-205-dg5EnmfcNuaKPeeqVJjVGw-1; Mon, 15 Mar 2021 18:10:29 -0400 X-MC-Unique: dg5EnmfcNuaKPeeqVJjVGw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D693C801817; Mon, 15 Mar 2021 22:10:26 +0000 (UTC) Received: from localhost.localdomain (unknown [10.35.207.30]) by smtp.corp.redhat.com (Postfix) with ESMTP id EAD6C5C261; Mon, 15 Mar 2021 22:10:21 +0000 (UTC) From: Maxim Levitsky To: kvm@vger.kernel.org Cc: Vitaly Kuznetsov , linux-kernel@vger.kernel.org, Thomas Gleixner , Wanpeng Li , Kieran Bingham , Jessica Yu , Jan Kiszka , Andrew Morton , x86@kernel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)), Joerg Roedel , Sean Christopherson , Jim Mattson , Borislav Petkov , Stefano Garzarella , Maxim Levitsky , "H. Peter Anvin" , Paolo Bonzini , Ingo Molnar Subject: [PATCH 0/3] KVM: my debug patch queue Date: Tue, 16 Mar 2021 00:10:17 +0200 Message-Id: <20210315221020.661693-1-mlevitsk@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi!=0D =0D I would like to publish two debug features which were needed for other stuf= f=0D I work on.=0D =0D One is the reworked lx-symbols script which now actually works on at least= =0D gdb 9.1 (gdb 9.2 was reported to fail to load the debug symbols from the ke= rnel=0D for some reason, not related to this patch) and upstream qemu.=0D =0D The other feature is the ability to trap all guest exceptions (on SVM for n= ow)=0D and see them in kvmtrace prior to potential merge to double/triple fault.=0D =0D This can be very useful and I already had to manually patch KVM a few=0D times for this.=0D I will, once time permits, implement this feature on Intel as well.=0D =0D Best regards,=0D Maxim Levitsky=0D =0D Maxim Levitsky (3):=0D scripts/gdb: rework lx-symbols gdb script=0D KVM: x86: guest debug: don't inject interrupts while single stepping=0D KVM: SVM: allow to intercept all exceptions for debug=0D =0D arch/x86/include/asm/kvm_host.h | 2 +=0D arch/x86/kvm/svm/svm.c | 77 ++++++++++++++++++++++-=0D arch/x86/kvm/svm/svm.h | 5 +-=0D arch/x86/kvm/x86.c | 11 +++-=0D kernel/module.c | 8 ++-=0D scripts/gdb/linux/symbols.py | 106 +++++++++++++++++++++++---------=0D 6 files changed, 174 insertions(+), 35 deletions(-)=0D =0D -- =0D 2.26.2=0D =0D