> -----Original Message----- > From: Konrad Rzeszutek Wilk [mailto:konrad.w...@oracle.com] > Sent: Friday, May 16, 2014 10:35 PM > To: Chen, Tiejun > Cc: anthony.per...@citrix.com; stefano.stabell...@eu.citrix.com; > m...@redhat.com; kelly.zyta...@amd.com; peter.mayd...@linaro.org; > xen-de...@lists.xensource.com; weidong....@intel.com; Kay, Allen M; > qemu-devel@nongnu.org; jean.guya...@eu.citrix.com; > anth...@codemonkey.ws; Zhang, Yang Z > Subject: Re: [Xen-devel] [v2][PATCH 6/8] xen, gfx passthrough: support Intel > IGD passthrough with VT-D > > On Fri, May 16, 2014 at 06:53:42PM +0800, Tiejun Chen wrote: > > Some registers of Intel IGD are mapped in host bridge, so it needs to > > passthrough these registers of physical host bridge to guest because > > emulated host bridge in guest doesn't have these mappings. > > When you say mapped - you mean they are aliased - so if I change the value in > the IGD they will change in the host bridge as well, right? >
Loos Yang already address some most points, so I just correct others based on your comments. Thanks Tiejun
