Re: [libvirt] [PATCHv2 5/8] qemu: Implement support for default 'random' backend for virtio-rng
On 02/21/2013 07:47 AM, Peter Krempa wrote:
This patch implements support for the virtio-rng-pci device and the
rng-random backend in qemu.
Two capabilities bits are added to track support for those:
QEMU_CAPS_DEVICE_VIRTIO_RNG - for the device support and
QEMU_CAPS_OBJECT_RNG_RANDOM - for the backend support.
Is there ever going to be a qemu with backend support but not the
device? I guess the opposite is possible though - having the device,
but being built with only one backend out of a set of backends available
in qemu source code. I guess keeping this as two capability bits makes
sense.
qemu is invoked with these additional parameters if the device is
enabled:
-object rng-random,id=rng0,filename=/test/phile (to add the backend)
-device virtio-rng-pci,rng=rng0,bus=pci.0,addr=0x4 (to add the device)
---
Notes:
Version 2:
- don't use different error messages for similar issues
ACK.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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