diff options
| author | Amit Shah <amit.shah@redhat.com> | 2014-08-12 00:05:41 +0530 |
|---|---|---|
| committer | Amit Shah <amit.shah@redhat.com> | 2014-08-15 10:26:01 +0530 |
| commit | 34679ec7a0c45da8161507e1f2e1f72749dfd85c (patch) | |
| tree | 32d2bbfdfbf2104e2eff82086afde2fcec235cf0 /drivers/char/random.c | |
| parent | c9d26423e56ce1ab4d786f92aebecf859d419293 (diff) | |
virtio: rng: add derating factor for use by hwrng core
The khwrngd thread is started when a hwrng device of sufficient
quality is registered. The virtio-rng device is backed by the
hypervisor, and we trust the hypervisor to provide real entropy.
A malicious or badly-implemented hypervisor is a scenario that's
irrelevant -- such a setup is bound to cause all sorts of badness, and a
compromised hwrng is the least of the user's worries.
Given this, we might as well assume that the quality of randomness we
receive is perfectly trustworthy. Hence, we use 100% for the factor,
indicating maximum confidence in the source.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: H. Peter Anvin <hpa@linux.intel.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/char/random.c')
0 files changed, 0 insertions, 0 deletions