Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932853AbcJNTAu convert rfc822-to-8bit (ORCPT ); Fri, 14 Oct 2016 15:00:50 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:34522 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753947AbcJNTAo (ORCPT ); Fri, 14 Oct 2016 15:00:44 -0400 Subject: Re: [Xen-devel] [PATCH 8/8] xen/pvh: Enable CPU hotplug To: Andrew Cooper , david.vrabel@citrix.com, JGross@suse.com References: <1476468318-24422-1-git-send-email-boris.ostrovsky@oracle.com> <1476468318-24422-9-git-send-email-boris.ostrovsky@oracle.com> Cc: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, roger.pau@citrix.com From: Boris Ostrovsky Message-ID: Date: Fri, 14 Oct 2016 15:01:39 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT X-Source-IP: userv0021.oracle.com [156.151.31.71] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 484 Lines: 13 On 10/14/2016 02:41 PM, Andrew Cooper wrote: > On 14/10/16 19:05, Boris Ostrovsky wrote: >> PVH guests don't receive ACPI hotplug interrupts and therefore >> need to monitor xenstore for CPU hotplug event. > Why not? If they don't, they should. As we are providing ACPI anyway, > we should provide all bits of it. We don't have IOAPIC, which is how these interrupts are typically delivered. I suppose we might be able to specify it as something else. I'll look into this. -boris