From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Daniel P. Berrange" Subject: Re: [Qemu-devel] [PATCH v3 0/9] HyperV equivalent of pvpanic driver Date: Tue, 30 Jun 2015 13:26:19 +0100 Message-ID: <20150630122619.GF14025@redhat.com> References: <1435664007-4965-1-git-send-email-den@openvz.org> Reply-To: "Daniel P. Berrange" Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: kvm@vger.kernel.org, Gleb Natapov , qemu-devel@nongnu.org, Paolo Bonzini , Andrey Smetanin To: "Denis V. Lunev" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:55473 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751203AbbF3M0Y (ORCPT ); Tue, 30 Jun 2015 08:26:24 -0400 Content-Disposition: inline In-Reply-To: <1435664007-4965-1-git-send-email-den@openvz.org> Sender: kvm-owner@vger.kernel.org List-ID: On Tue, Jun 30, 2015 at 02:33:18PM +0300, Denis V. Lunev wrote: > Windows 2012 guests can notify hypervisor about occurred guest crash > (Windows bugcheck(BSOD)) by writing specific Hyper-V msrs. This patch does > handling of this MSR's by KVM and sending notification to user space that > allows to gather Windows guest crash dump by QEMU/LIBVIRT. > > The idea is to provide functionality equal to pvpanic device without > QEMU guest agent for Windows. That's nice - do you know if the Linux kernel (or any other non-Win2k12 kernels) have support for notifying hypevisors via this Hyper-V msr, when running as a guest ? Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|