libvirt/tests/qemuxml2argvdata/qemuxml2argv-virtio-rng-random.args

LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu \
-S -M pc -m 214 -smp 1 -nographic -nodefaults \
-monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -usb \
-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
-object rng-random,id=rng0,filename=/dev/hwrng \
-device virtio-rng-pci,rng=rng0,max-bytes=123,period=1234,bus=pci.0,addr=0x4
tests: Test XML entities in source path for RNG device Users may want to specify XML entities in paths to devices. Ensure they are parsed and used properly. 2013-02-25 22:18:44 +00:00			`LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu \`
			`-S -M pc -m 214 -smp 1 -nographic -nodefaults \`
			`-monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -usb \`
			`-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \`
rng: restrict passthrough names to known-good files There is some controversy[1] on the qemu list on whether qemu should have ever allowed arbitrary file name passthrough, or whether it should be restricted to JUST /dev/random and /dev/hwrng. It is always easier to add support for additional filenames than it is to remove support for something once released, so this patch restricts libvirt 1.0.3 (where the virtio-random backend was first supported) to just the two uncontroversial names, letting us defer to a later date any decision on whether supporting arbitrary files makes sense. Additionally, since qemu 1.4 does NOT support /dev/fdset/nnn fd passthrough for the backend, limiting to just two known names means that we don't get tempted to try fd passthrough where it won't work. [1]https://lists.gnu.org/archive/html/qemu-devel/2013-03/threads.html#00023 * src/conf/domain_conf.c (virDomainRNGDefParseXML): Only allow /dev/random and /dev/hwrng. * docs/schemas/domaincommon.rng: Flag invalid files. * docs/formatdomain.html.in (elementsRng): Document this. * tests/qemuxml2argvdata/qemuxml2argv-virtio-rng-random.args: Update test to match. * tests/qemuxml2argvdata/qemuxml2argv-virtio-rng-random.xml: Likewise. 2013-03-04 22:42:07 +00:00			`-object rng-random,id=rng0,filename=/dev/hwrng \`
virtio-rng: Add rate limiting options for virtio-RNG Qemu's implementation of virtio RNG supports rate limiting of the entropy used. This patch exposes the option to tune this functionality. This patch is based on qemu commit 904d6f588063fb5ad2b61998acdf1e73fb4 The rate limiting is exported in the XML as: <devices> ... <rng model='virtio'> <rate bytes='123' period='1234'/> <backend model='random'/> </rng> ... 2013-02-13 14:37:39 +00:00			`-device virtio-rng-pci,rng=rng0,max-bytes=123,period=1234,bus=pci.0,addr=0x4`