On 10/01/2015 01:07 PM, Michael S. Tsirkin wrote: > On Thu, Oct 01, 2015 at 12:38:51PM +0300, Avi Kivity wrote: >> The sad thing is that you can do this since forever on a non-virtualized >> system, or on a virtualized system if you don't need interrupt support. All >> you're doing is blocking interrupt support on virtualized systems. > True, Linux could do more to prevent this kind of abuse. > In fact IIRC, if you enable secureboot, it does exactly that. > > A generic uio driver isn't a good interface because it relies on these > sysfs files. We are luckly it doesn't work for VFs, I don't think we > should do anything that relies on this interface in future applications. >
I agree that uio is not a good solution. But for some users, which we are discussing now, it is the only solution. A bad solution is better than no solution.
