From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/include/hw/virtio/virtio-rng.h | 50 +++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 qemu/include/hw/virtio/virtio-rng.h (limited to 'qemu/include/hw/virtio/virtio-rng.h') diff --git a/qemu/include/hw/virtio/virtio-rng.h b/qemu/include/hw/virtio/virtio-rng.h new file mode 100644 index 000000000..3f07de70c --- /dev/null +++ b/qemu/include/hw/virtio/virtio-rng.h @@ -0,0 +1,50 @@ +/* + * 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 "sysemu/rng.h" +#include "sysemu/rng-random.h" +#include "standard-headers/linux/virtio_rng.h" + +#define TYPE_VIRTIO_RNG "virtio-rng-device" +#define VIRTIO_RNG(obj) \ + OBJECT_CHECK(VirtIORNG, (obj), TYPE_VIRTIO_RNG) +#define VIRTIO_RNG_GET_PARENT_CLASS(obj) \ + OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_RNG) + +struct VirtIORNGConf { + RngBackend *rng; + uint64_t max_bytes; + uint32_t period_ms; + RndRandom *default_backend; +}; + +typedef struct VirtIORNG { + VirtIODevice parent_obj; + + /* Only one vq - guest puts buffer(s) on it when it needs entropy */ + VirtQueue *vq; + + VirtIORNGConf conf; + + RngBackend *rng; + + /* We purposefully don't migrate this state. The quota will reset on the + * destination as a result. Rate limiting is host state, not guest state. + */ + QEMUTimer *rate_limit_timer; + int64_t quota_remaining; + bool activate_timer; +} VirtIORNG; + +#endif -- cgit 1.2.3-korg