From patchwork Fri Jul 3 12:01:43 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Denis V. Lunev" X-Patchwork-Id: 6714771 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id AAEC4C05AC for ; Fri, 3 Jul 2015 12:02:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CAF8D207AE for ; Fri, 3 Jul 2015 12:02:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EE7A820770 for ; Fri, 3 Jul 2015 12:02:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932133AbbGCMCZ (ORCPT ); Fri, 3 Jul 2015 08:02:25 -0400 Received: from mailhub.sw.ru ([195.214.232.25]:22266 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755022AbbGCMCR (ORCPT ); Fri, 3 Jul 2015 08:02:17 -0400 Received: from hades.sw.ru ([10.30.8.132]) by relay.sw.ru (8.13.4/8.13.4) with ESMTP id t63C1kbr011894; Fri, 3 Jul 2015 15:02:05 +0300 (MSK) From: "Denis V. Lunev" Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, Andrey Smetanin , "Denis V. Lunev" , Paolo Bonzini , =?UTF-8?q?Andreas=20F=C3=A4rber?= Subject: [PATCH 10/12] kvm: Add kvm system event crash handler Date: Fri, 3 Jul 2015 15:01:43 +0300 Message-Id: <1435924905-8926-11-git-send-email-den@openvz.org> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1435924905-8926-1-git-send-email-den@openvz.org> References: <1435924905-8926-1-git-send-email-den@openvz.org> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Andrey Smetanin KVM kernel can send guest crash events into userspace. Appropriate guest crash handler is called when kernel guest crash event received. Guest crash event recognized by a KVM_SYSTEM_EVENT_CRASH type of system event. Signed-off-by: Andrey Smetanin Signed-off-by: Denis V. Lunev CC: Paolo Bonzini CC: Andreas Färber --- kvm-all.c | 4 ++++ linux-headers/linux/kvm.h | 1 + 2 files changed, 5 insertions(+) diff --git a/kvm-all.c b/kvm-all.c index 53e01d4..7a959b6 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -1844,6 +1844,10 @@ int kvm_cpu_exec(CPUState *cpu) qemu_system_reset_request(); ret = EXCP_INTERRUPT; break; + case KVM_SYSTEM_EVENT_CRASH: + qemu_system_guest_panicked(); + ret = 0; + break; default: DPRINTF("kvm_arch_handle_exit\n"); ret = kvm_arch_handle_exit(cpu, run); diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h index fad9e5c..409be37 100644 --- a/linux-headers/linux/kvm.h +++ b/linux-headers/linux/kvm.h @@ -317,6 +317,7 @@ struct kvm_run { struct { #define KVM_SYSTEM_EVENT_SHUTDOWN 1 #define KVM_SYSTEM_EVENT_RESET 2 +#define KVM_SYSTEM_EVENT_CRASH 3 __u32 type; __u64 flags; } system_event;