On Fri, 14 Oct 2016 19:06:47 +0200 Greg KH <greg@xxxxxxxxx> wrote: > On Fri, Oct 14, 2016 at 09:43:52AM -0700, Stephen Hemminger wrote: > > From: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx> > > > > This is a staging driver to enable userspace networking on VMBus. > > Hyper-V does not support guest IOMMU, so this is an alternative > > to allow for applications using DPDK. > > > > This is based on earlier GPL driver developed for DPDK by Brocade. > > > > Signed-off-by: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx> > > --- > > drivers/hv/connection.c | 1 + > > drivers/staging/Kconfig | 2 + > > drivers/staging/Makefile | 1 + > > drivers/staging/hv_uio/Kconfig | 6 ++ > > drivers/staging/hv_uio/Makefile | 4 + > > drivers/staging/hv_uio/hv_uio.c | 222 ++++++++++++++++++++++++++++++++++++++++ > > Why staging? If you do this, I need a TODO file to list what needs to > be done to it in order to get it out of staging... I think this needs to go into staging because not convinced that it is completely secure. For example, a malicious userspace driver could certainly break other VMBus drivers on the system (shared notification areas). Also, the ABI is not stable; new features are certain to break compatibility. Longer term, a better solution is to support something like VFIO which provides a better API. But would have to be like VFIO-noiommu and VFIO is specific to PCI right now. _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
