From 16c915ba42b45df7a64a6908287f03bfa3764bed Mon Sep 17 00:00:00 2001 From: Amit Shah Date: Wed, 20 Jun 2012 12:29:32 +0530 Subject: virtio-rng: hardware random number generator device The Linux kernel already has a virtio-rng driver, this is the device implementation. When the guest asks for entropy from the virtio hwrng, it puts a buffer in the vq. We then put entropy into that buffer, and push it back to the guest. Signed-off-by: Amit Shah Signed-off-by: Anthony Liguori --- aliguori: converted to new RngBackend interface aliguori: remove entropy needed event aliguori: fix migration --- hw/virtio-rng.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 hw/virtio-rng.h (limited to 'hw/virtio-rng.h') diff --git a/hw/virtio-rng.h b/hw/virtio-rng.h new file mode 100644 index 0000000000..fbb01048ba --- /dev/null +++ b/hw/virtio-rng.h @@ -0,0 +1,24 @@ +/* + * Virtio RNG Support + * + * Copyright Red Hat, Inc. 2012 + * Copyright Amit Shah + * + * This work is licensed under the terms of the GNU GPL, version 2 or + * (at your option) any later version. See the COPYING file in the + * top-level directory. + */ + +#ifndef _QEMU_VIRTIO_RNG_H +#define _QEMU_VIRTIO_RNG_H + +#include "qemu/rng.h" + +/* The Virtio ID for the virtio rng device */ +#define VIRTIO_ID_RNG 4 + +struct VirtIORNGConf { + RngBackend *rng; +}; + +#endif -- cgit 1.4.1