From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Jackson Subject: Re: [PATCH v4 7/8] hvmloader: Remove minimum size for BARs to relocate to 64-bit space Date: Fri, 21 Jun 2013 12:22:47 +0100 Message-ID: <20932.14215.943655.209451@mariner.uk.xensource.com> References: <1371811594-31135-1-git-send-email-george.dunlap@eu.citrix.com> <1371811594-31135-8-git-send-email-george.dunlap@eu.citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1371811594-31135-8-git-send-email-george.dunlap@eu.citrix.com> 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: Keir Fraser , Hanweidong , Stefano Stabellini , Ian Campbell , xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org George Dunlap writes ("[PATCH v4 7/8] hvmloader: Remove minimum size for BARs to relocate to 64-bit space"): > Allow devices with BARs less than 512MiB to be relocated to high > memory. > > This will only be invoked if there is not enough low MMIO space to map > the device, and will be done preferentially to large devices first; so > in all likelihood only large devices will be remapped anyway. > > This is needed to work-around the issue of qemu-xen not being able to > handle moving guest memory around to resize the MMIO hole. The > default MMIO hole size is less than 256MiB. Assuming a good answer to my responses to 5/8 and 6/8, this is fine and in line with what your 0/8 claims. Acked-by: Ian Jackson Ian.