Proposed F19 Feature: Virtio RNG

[Matthew Garrett]

On Fri, Feb 01, 2013 at 08:19:30PM -0500, Paul Wouters wrote:
> On Fri, 1 Feb 2013, Matthew Garrett wrote:
> 
> >other than providing other sources of entropy, and long-term this is
> >going to be fixed once everyone's moved to Ivy Bridge and has an
> >unprivileged instruction to hand out entropy.
> 
> uhm I know intel really wants us to use it directly and trust them, but
> we're going to run it through the kernel right? And just expose it via
> /dev/random to userland yes?

rngd calls rdrand and seeds /dev/random with it. The kernel doesn't use 
rdrand directly, but does have some setup code to ensure that it's 
reseeded before userspace starts.

-- 
Matthew Garrett | mjg59 at srcf.ucam.org