Date: Mon, 15 Sep 2014 17:17:39 -0600 From: John Nielsen <lists@jnielsen.net> To: freebsd-virtualization@freebsd.org Cc: Bryan Venteicher <bryanv@freebsd.org> Subject: Using virtio_random Message-ID: <3A1313AD-5B06-4F17-9C17-B91AA32FEE88@jnielsen.net>
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Hi all- I am happy to see that virtio_random(4) will be included in FreeBSD 10.1. To try it out, I loaded up BETA1 in a virtual machine with entropy passthrough enabled. After booting it with the virtio_random module loaded I see this in dmesg: virtio_pci3: <VirtIO PCI Entropy adapter> port 0xc0a0-0xc0bf irq 10 at device 6.0 on pci0 vtrnd0: <VirtIO Entropy Adapter> on virtio_pci3 virtio_pci3: host features: 0x71000000 <EventIdx,RingIndirect,NotifyOnEmpty> virtio_pci3: negotiated features: 0 So far, so good. (I think? The 'negotiated features: 0' gives me pause..) Now how do I use the driver as an entropy source (or verify that it's being used)? I don't see any difference in the output of "sysctl kern.random" with or without the driver loaded. Is something missing? Thanks, JN
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