> From: Alex Williamson > Sent: Wednesday, January 27, 2016 12:13 AM > > b) adding other information. For example, for the OpRegion, QEMU need > > to do more than mmap a region, it has to: > > > > - allocate a region > > - copy contents from somewhere in host to that region > > - mmap it to guest > > > > > > I remember you already have a prototype for this? > > Yes, I'm working on this currently, it will by a device specific region > and QEMU can either copy the contents to a new buffer in guest memory > or provided trapped access to the host opregion. I thought vgpus > weren't going to need opregions though, I figured it was more for GVT-d > support. Thanks, >
It's beneficial to vgpu too. Anyway same graphics driver runs inside VM for both cases, so any driver assumption on passthru also applies to vgpu. Thanks Kevin
