From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751984AbbIQPXX (ORCPT ); Thu, 17 Sep 2015 11:23:23 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:46775 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751663AbbIQPXV (ORCPT ); Thu, 17 Sep 2015 11:23:21 -0400 Date: Thu, 17 Sep 2015 17:17:57 +0200 From: Peter Zijlstra To: Andy Lutomirski Cc: Paolo Bonzini , xen-devel , Arjan van de Ven , "linux-kernel@vger.kernel.org" , X86 ML , KVM list Subject: Re: [PATCH 0/3] x86/paravirt: Fix baremetal paravirt MSR ops Message-ID: <20150917151757.GM3816@twins.programming.kicks-ass.net> References: <20150917085807.GH3816@twins.programming.kicks-ass.net> <55FAA6AE.9050503@redhat.com> <20150917122750.GH3604@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 17, 2015 at 08:17:18AM -0700, Andy Lutomirski wrote: > > Ah, that would be good news. Andy earlier argued I could not rely on > > rdmsr_safe() faulting on unknown MSRs. If practically we can there's > > some code I can simplify :-) > > I was taking about QEMU TCG, not KVM. Just for my education, TCG is the thing without _any_ hardware assist? The thing you fear to use because it cannot boot a kernel this side of tomorrow etc.. ?