From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760608Ab0JGNZz (ORCPT ); Thu, 7 Oct 2010 09:25:55 -0400 Received: from mx1.redhat.com ([209.132.183.28]:46951 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754137Ab0JGNZx (ORCPT ); Thu, 7 Oct 2010 09:25:53 -0400 Message-ID: <4CADCA1E.1080207@redhat.com> Date: Thu, 07 Oct 2010 09:24:46 -0400 From: Rik van Riel User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.8) Gecko/20100806 Fedora/3.1.2-1.fc13 Lightning/1.0b2pre Thunderbird/3.1.2 MIME-Version: 1.0 To: Avi Kivity CC: Gleb Natapov , kvm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, mingo@elte.hu, a.p.zijlstra@chello.nl, tglx@linutronix.de, hpa@zytor.com, cl@linux-foundation.org, mtosatti@redhat.com Subject: Re: [PATCH v6 02/12] Halt vcpu if page it tries to access is swapped out. References: <1286207794-16120-1-git-send-email-gleb@redhat.com> <1286207794-16120-3-git-send-email-gleb@redhat.com> <4CAD97D0.70100@redhat.com> In-Reply-To: <4CAD97D0.70100@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/07/2010 05:50 AM, Avi Kivity wrote: >> +static bool can_do_async_pf(struct kvm_vcpu *vcpu) >> +{ >> + if (unlikely(!irqchip_in_kernel(vcpu->kvm) || >> + kvm_event_needs_reinjection(vcpu))) >> + return false; >> + >> + return kvm_x86_ops->interrupt_allowed(vcpu); >> +} > > Strictly speaking, if the cpu can handle NMIs it can take an apf? Strictly speaking, yes. However, it may not be able to DO anything with it, since it won't be able to reschedule the context it's running :) -- All rights reversed