Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753124Ab0AUJH4 (ORCPT ); Thu, 21 Jan 2010 04:07:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752015Ab0AUJHz (ORCPT ); Thu, 21 Jan 2010 04:07:55 -0500 Received: from mx1.redhat.com ([209.132.183.28]:63036 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751953Ab0AUJHx (ORCPT ); Thu, 21 Jan 2010 04:07:53 -0500 Message-ID: <4B5818EA.10709@redhat.com> Date: Thu, 21 Jan 2010 11:05:46 +0200 From: Avi Kivity User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.5) Gecko/20091209 Fedora/3.0-4.fc12 Thunderbird/3.0 MIME-Version: 1.0 To: Gleb Natapov CC: "H. Peter Anvin" , Peter Zijlstra , kvm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, mingo@elte.hu, tglx@linutronix.de, riel@redhat.com, cl@linux-foundation.org Subject: Re: [PATCH v3 04/12] Add "handle page fault" PV helper. References: <4B541D08.9040802@zytor.com> <20100118085022.GA30698@redhat.com> <4B5510B1.9010202@zytor.com> <20100119065537.GF14345@redhat.com> <4B55E5D8.1070402@zytor.com> <20100119174438.GA19450@redhat.com> <4B5611A9.4050301@zytor.com> <20100120100254.GC5238@redhat.com> <4B5740CD.4020005@zytor.com> <4B58181B.60405@redhat.com> <20100121090421.GS5238@redhat.com> In-Reply-To: <20100121090421.GS5238@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 934 Lines: 24 On 01/21/2010 11:04 AM, Gleb Natapov wrote: > >> Do you mean create the stack frame manually? I'd really like to >> avoid that for many reasons, one of which is performance (need to do >> all the virt-to-phys walks manually), the other is that we're >> certain to end up with something horribly underspecified. I'd >> really like to keep as close as possible to the hardware. For the >> alternative approach, see Xen. >> >> > That and our event injection path can't play with guest memory right now > since it is done from atomic context. > That's true (I'd like to fix that though, for the real mode stuff). -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/