From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail191.messagelabs.com (mail191.messagelabs.com [216.82.242.19]) by kanga.kvack.org (Postfix) with SMTP id 51DEE6B0085 for ; Thu, 7 Oct 2010 09:25:08 -0400 (EDT) Message-ID: <4CADCA1E.1080207@redhat.com> Date: Thu, 07 Oct 2010 09:24:46 -0400 From: Rik van Riel MIME-Version: 1.0 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: owner-linux-mm@kvack.org 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 List-ID: 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org