From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH 1/1] direct mmio for passthrough - kernel part Date: Tue, 01 Apr 2008 22:22:51 +0300 Message-ID: <47F28B8B.6080707@qumranet.com> References: <1207050734-13166-1-git-send-email-benami@il.ibm.com> <1207050734-13166-2-git-send-email-benami@il.ibm.com> <47F238D8.7040608@qumranet.com> <47F249C3.6000300@codemonkey.ws> <47F26AD2.8000406@qumranet.com> <47F27D31.5050604@codemonkey.ws> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel@lists.sourceforge.net, andrea@qumranet.com, allen.m.kay@intel.com, benami@il.ibm.com To: Anthony Liguori Return-path: In-Reply-To: <47F27D31.5050604@codemonkey.ws> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces@lists.sourceforge.net Errors-To: kvm-devel-bounces@lists.sourceforge.net List-Id: kvm.vger.kernel.org Anthony Liguori wrote: > I looked at Andrea's patches and I didn't see any special handling for > non-RAM pages. Something Muli mentioned that kept them from doing > /sys/devices/pci/.../region to begin with was the fact that IO pages do > not have a struct page backing them so get_user_pages() will fail in > gfn_to_page(). > It's just something we discussed, not code. -- Any sufficiently difficult bug is indistinguishable from a feature. ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace