From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59293) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1alcOi-00071x-2n for qemu-devel@nongnu.org; Thu, 31 Mar 2016 09:12:28 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1alcOe-0000Sc-ST for qemu-devel@nongnu.org; Thu, 31 Mar 2016 09:12:27 -0400 Received: from mx-v6.kamp.de ([2a02:248:0:51::16]:53916 helo=mx01.kamp.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1alcOe-0000SG-IP for qemu-devel@nongnu.org; Thu, 31 Mar 2016 09:12:24 -0400 References: <1459371583-4824-1-git-send-email-pbonzini@redhat.com> <56FD1E68.5020604@redhat.com> From: Peter Lieven Message-ID: <56FD2233.1050708@kamp.de> Date: Thu, 31 Mar 2016 15:12:19 +0200 MIME-Version: 1.0 In-Reply-To: <56FD1E68.5020604@redhat.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Qemu-stable] [PATCH] target-i386: do not read/write MSR_TSC_AUX from KVM if CPUID bit is not set List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Laszlo Ersek , Paolo Bonzini , qemu-devel@nongnu.org Cc: Michael Roth , ehabkost@redhat.com, qemu-stable@nongnu.org Am 31.03.2016 um 14:56 schrieb Laszlo Ersek: > On 03/30/16 22:59, Paolo Bonzini wrote: >> KVM does not let you read or write this MSR if the corresponding CPUID >> bit is not set. This in turn causes MSRs that come after MSR_TSC_AUX >> to be ignored by KVM_SET_MRSS. Is it possible that this causes a freeze when migrating vom qemu 2.2.0 to 2.5.1? Thanks, Peter