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virtio-rng: hardware random number generator device

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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 <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
aliguori: converted to new RngBackend interface
aliguori: remove entropy needed event
aliguori: fix migration
This commit is contained in:
Amit Shah 2012-06-20 12:29:32 +05:30 • committed by Anthony Liguori
parent 1da2738f55
commit 16c915ba42
9 changed files with 341 additions and 0 deletions
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1
hw/Makefile.objs
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@ -1,6 +1,7 @@
common-obj-y = usb/ ide/
common-obj-y += loader.o
common-obj-$(CONFIG_VIRTIO) += virtio-console.o
common-obj-$(CONFIG_VIRTIO) += virtio-rng.o
common-obj-$(CONFIG_VIRTIO_PCI) += virtio-pci.o
common-obj-y += fw_cfg.o
common-obj-$(CONFIG_PCI) += pci.o pci_bridge.o pci_bridge_dev.o