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[Qemu-devel] [PATCH 8/8] virtio-rng-pci: create a default backend if non
From: |
Anthony Liguori |
Subject: |
[Qemu-devel] [PATCH 8/8] virtio-rng-pci: create a default backend if none exists |
Date: |
Wed, 31 Oct 2012 17:00:34 -0500 |
This allows you to specify:
$ qemu -device virtio-rng-pci
And things will Just Work with a reasonable default.
Signed-off-by: Anthony Liguori <address@hidden>
---
hw/virtio-pci.c | 13 +++++++++++++
hw/virtio-rng.h | 2 ++
2 files changed, 15 insertions(+)
diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
index f90296d..71f4fb5 100644
--- a/hw/virtio-pci.c
+++ b/hw/virtio-pci.c
@@ -857,6 +857,19 @@ static int virtio_rng_init_pci(PCIDevice *pci_dev)
VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
VirtIODevice *vdev;
+ if (proxy->rng.rng == NULL) {
+ proxy->rng.default_backend = RNG_RANDOM(object_new(TYPE_RNG_RANDOM));
+
+ object_property_add_child(OBJECT(pci_dev),
+ "default-backend",
+ OBJECT(proxy->rng.default_backend),
+ NULL);
+
+ object_property_set_link(OBJECT(pci_dev),
+ OBJECT(proxy->rng.default_backend),
+ "rng", NULL);
+ }
+
vdev = virtio_rng_init(&pci_dev->qdev, &proxy->rng);
if (!vdev) {
return -1;
diff --git a/hw/virtio-rng.h b/hw/virtio-rng.h
index 7324d0a..f42d748 100644
--- a/hw/virtio-rng.h
+++ b/hw/virtio-rng.h
@@ -13,6 +13,7 @@
#define _QEMU_VIRTIO_RNG_H
#include "qemu/rng.h"
+#include "qemu/rng-random.h"
/* The Virtio ID for the virtio rng device */
#define VIRTIO_ID_RNG 4
@@ -21,6 +22,7 @@ struct VirtIORNGConf {
RngBackend *rng;
uint64_t max_bytes;
uint32_t period_ms;
+ RndRandom *default_backend;
};
#endif
--
1.8.0
- [Qemu-devel] [PATCH 0/8] add paravirtualization hwrng support (v3), Anthony Liguori, 2012/10/31
- [Qemu-devel] [PATCH 1/8] vl: add -object option to create QOM objects from the command line, Anthony Liguori, 2012/10/31
- [Qemu-devel] [PATCH 3/8] rng: add RndBackend abstract object class, Anthony Liguori, 2012/10/31
- [Qemu-devel] [PATCH 5/8] rng-egd: introduce EGD compliant RNG backend, Anthony Liguori, 2012/10/31
- [Qemu-devel] [PATCH 7/8] virtio-rng: add rate limiting support, Anthony Liguori, 2012/10/31
- [Qemu-devel] [PATCH 8/8] virtio-rng-pci: create a default backend if none exists,
Anthony Liguori <=
- [Qemu-devel] [PATCH 2/8] object: add object_property_add_bool (v2), Anthony Liguori, 2012/10/31
- [Qemu-devel] [PATCH 4/8] rng-random: add an RNG backend that uses /dev/random (v3), Anthony Liguori, 2012/10/31
- [Qemu-devel] [PATCH 6/8] virtio-rng: hardware random number generator device, Anthony Liguori, 2012/10/31