From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gordan Bobic Subject: Re: Xen 4.3 development update Date: Mon, 17 Jun 2013 12:17:12 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: George Dunlap Cc: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org On Mon, 17 Jun 2013 11:58:23 +0100, George Dunlap wrote: > There are basically two issues we're waiting to sort out (see below > for more info): > * cpu hotplug in qemu-upsream > * The MMIO hole issue Does that mean that the PCI hole mis-map issue is going to be fixed in 4.3? Or is this a different issue? I've been thinking about a domU workaround for this. I haven't yet had a chance to try it due to too many other things happening, but I was pondering something along the following lines. For Linux domU, something like memmap=2G$2G on the kernel command line. For Windows domU, use something like: bcdedit /set badmemorylist $page1 $page2 ... to mark the whole 2GB-4GB area as not usable. It's a gross hack, but it might just get things working for now. Gordan