On 09/11/2015 03:17 AM, Thomas Huth wrote: > The PAPR interface defines a hypercall to pass high-quality > hardware generated random numbers to guests. Recent kernels can > already provide this hypercall to the guest if the right hardware > random number generator is available. But in case the user wants > to use another source like EGD, or QEMU is running with an older > kernel, we should also have this call in QEMU, so that guests that > do not support virtio-rng yet can get good random numbers, too. > > This patch now adds a new pseude-device to QEMU that either s/pseude/pseudo/ > directly provides this hypercall to the guest or is able to > enable the in-kernel hypercall if available. The in-kernel > hypercall can be enabled with the use-kvm property, e.g.: > > qemu-system-ppc64 -device spapr-rng,use-kvm=true > -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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