tree bde69d0da868b299cbdb8ede0f1949a8510e30ef
parent fc4f6529c2981116dd638bbe05ab6a5f557045fb
author Andrew Krieger <andrewkrieger@google.com> 1505166119 -0700
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1505236487 +0000

[virtio][entropy] Basic virtio-rng driver

The driver draws entropy from the host system on qemu. Since there
isn't a mechanism for the kernel to pull entropy from the driver or to
control the driver's rate of activity, for now the driver just launches
its own thread to push entropy to the kernel periodically.

Change-Id: I950518db4a5776f041856b05ad0277b970aa6bc5