[PATCH 1/4] x86,kvm: Add MSR_KVM_GET_RNG_SEED and a matching feature bit

2014-07-15 Thread Andy Lutomirski
This adds a simple interface to allow a guest to request 64 bits of host nonblocking entropy. This is independent of virtio-rng for a couple of reasons: - It's intended to be usable during early boot, when a trivial synchronous interface is needed. - virtio-rng gives blocking entropy, and

[PATCH 1/4] x86,kvm: Add MSR_KVM_GET_RNG_SEED and a matching feature bit

2014-07-15 Thread Andy Lutomirski
This adds a simple interface to allow a guest to request 64 bits of host nonblocking entropy. This is independent of virtio-rng for a couple of reasons: - It's intended to be usable during early boot, when a trivial synchronous interface is needed. - virtio-rng gives blocking entropy, and