On Sun, Jul 20, 2014 at 9:18 AM, Marcel Holtmann <[email protected]> wrote: > Hello, > > the commit d9e7972619334656 ends up being responsible that using "-device > virtio-rng-pci" in KVM no longer works. > > From: Kees Cook <[email protected]> > Date: Mon, 3 Mar 2014 15:51:48 -0800 > Subject: [PATCH] hwrng: add randomness to system from rng sources > > When bringing a new RNG source online, it seems like it would make > sense > to use some of its bytes to make the system entropy pool more random, > as done with all sorts of other devices that contain per-device or > per-boot differences. > > When providing "-device virtio-rng-pci" to a kernel with the above commit, > the kernel never finishes booting. It just stops. My guess it is waiting for > some magic entropy to appear. > > Maybe this is something that should be fixed in virtio-rng driver instead of > reverting this patch, but I leave this to the experts in this area.
Yup, this has already been handled. See various threads around: https://lkml.org/lkml/2014/7/5/14 -Kees -- Kees Cook Chrome OS Security -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
