From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: How to handle TLB shootdown IPI on Xen Date: Mon, 12 Aug 2013 17:24:36 +0100 Message-ID: <5209286402000078000EB527@nat28.tlf.novell.com> References: <5208BAAF02000078000EB097@nat28.tlf.novell.com> <5208FF4902000078000EB342@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1V8uvB-0004YT-5G for xen-devel@lists.xenproject.org; Mon, 12 Aug 2013 16:24:41 +0000 In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: J Ahn Cc: xen-devel List-Id: xen-devel@lists.xenproject.org >>> On 12.08.13 at 18:04, J Ahn wrote: > I was wondering how Xen works when the guest sends the TLB shootdown IPI. > You mean that there is no need to intercept the IPI on Xen. > Is my understanding right? Xen is just involved in the delivery of the virtual interrupt, but doesn't participate in its handling. Jan