From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761759Ab2COLqd (ORCPT ); Thu, 15 Mar 2012 07:46:33 -0400 Received: from mx1.redhat.com ([209.132.183.28]:29900 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761690Ab2COLqb (ORCPT ); Thu, 15 Mar 2012 07:46:31 -0400 Message-ID: <4F61D688.5040406@redhat.com> Date: Thu, 15 Mar 2012 13:46:16 +0200 From: Avi Kivity User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120216 Thunderbird/10.0.1 MIME-Version: 1.0 To: Jan Kiszka CC: Gleb Natapov , Eric Northup , Wen Congyang , "Daniel P. Berrange" , kvm list , qemu-devel , "linux-kernel@vger.kernel.org" , KAMEZAWA Hiroyuki , Amit Shah Subject: Re: [PATCH 0/2 v3] kvm: notify host when guest panicked References: <4F60726E.3090807@cn.fujitsu.com> <4F607325.6050607@redhat.com> <20120314104608.GU2304@redhat.com> <4F607789.4010109@redhat.com> <4F607CE4.2060809@cn.fujitsu.com> <4F609822.7050502@redhat.com> <20120314131415.GB2304@redhat.com> <4F609A15.5020902@redhat.com> <20120314132552.GC2304@redhat.com> <20120315103923.GL2304@redhat.com> <4F61D1AF.4040603@siemens.com> In-Reply-To: <4F61D1AF.4040603@siemens.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/15/2012 01:25 PM, Jan Kiszka wrote: > >> > > There was such vm exit (KVM_EXIT_HYPERCALL), but it was deemed to be a > > bad idea. > > BTW, this would help a lot in emulating hypercalls of other hypervisors > (or of KVM's VAPIC in the absence of in-kernel irqchip - I had to jump > through hoops therefore) in user space. Not all those hypercall handlers > actually have to reside in the KVM module. > That is true. On the other hand the hypercall ABI might go to pieces if there was no central implementation. -- error compiling committee.c: too many arguments to function