From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gleb Natapov <gleb@redhat.com>
Subject: Re: [PATCH 13/15] Add NMI injection support to SVM.
Date: Sun, 19 Apr 2009 16:40:05 +0300
Message-ID: <20090419134005.GL10126@redhat.com>
References: <1239616545-25199-1-git-send-email-gleb@redhat.com> <1239616545-25199-14-git-send-email-gleb@redhat.com> <49E8DEC1.4030802@web.de> <20090419131735.GG10126@redhat.com> <49EB2559.4000704@redhat.com> <20090419132434.GH10126@redhat.com> <49EB26E9.4060002@redhat.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Cc: Jan Kiszka <jan.kiszka@web.de>, kvm@vger.kernel.org,
	joerg.roedel@amd.com, sheng@linux.intel.com,
	Dmitry Baryshkov <dbaryshkov@gmail.com>
To: Avi Kivity <avi@redhat.com>
Return-path: <kvm-owner@vger.kernel.org>
Received: from mx2.redhat.com ([66.187.237.31]:37512 "EHLO mx2.redhat.com"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1757855AbZDSNkL (ORCPT <rfc822;kvm@vger.kernel.org>);
	Sun, 19 Apr 2009 09:40:11 -0400
Content-Disposition: inline
In-Reply-To: <49EB26E9.4060002@redhat.com>
Sender: kvm-owner@vger.kernel.org
List-ID: <kvm.vger.kernel.org>

On Sun, Apr 19, 2009 at 04:28:09PM +0300, Avi Kivity wrote:
> Gleb Natapov wrote:
>>> There may not be a next entry if the guest is in a tight loop.  Given 
>>>  NMIs are used for watchdogs, that's not good.
>>>
>>>     
>> We don't exit a guest after kvm time slice ends?
>>   
>
> There are no time slices any more.  If there's only once thread for a  
> vcpu, you might have no exits at all with a tickless kernel.
>
Well, KVM may request some kind of even (timer) that will cause exit to
VCPU. This looks hacky though.

--
			Gleb.