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LMC: Make the QEMU RNG device optional 

Added a new QEMU argument '--with-rng' to specify a RNG device other
than /dev/random or "none".

Signed-off-by: Yuval Turgeman <yturgema@redhat.com>
This commit is contained in:
Yuval Turgeman 2018-01-21 16:44:55 +02:00 committed by Brian C. Lane
parent f1467ca99f
commit 68d1f4208d
2 changed files with 5 additions and 2 deletions
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2
src/pylorax/cmdline.py
View File

@ -243,6 +243,8 @@ def lmc_parser(dracut_default=""):
help="Use OVMF firmware to boot the VM in UEFI mode")
virt_group.add_argument("--no-kvm", action="store_true", default=False,
help="Skip using kvm with qemu even if it is available.")
virt_group.add_argument("--with-rng", default="/dev/random",
help="RNG device for QEMU (none for no RNG)")
# dracut arguments
dracut_group = parser.add_argument_group("dracut arguments")

5
src/sbin/livemedia-creator
View File

@ -242,8 +242,9 @@ class QEMUInstall(object):
qemu_cmd += ["-chardev", "socket,id=charchannel0,host=%s,port=%s" % (virtio_host, virtio_port)]
# PAss through rng from host
qemu_cmd += ["-object", "rng-random,id=virtio-rng0,filename=/dev/random"]
qemu_cmd += ["-device", "virtio-rng-pci,rng=virtio-rng0,id=rng0,bus=pci.0,addr=0x9"]
if opts.with_rng != "none":
qemu_cmd += ["-object", "rng-random,id=virtio-rng0,filename=%s" % opts.with_rng]
qemu_cmd += ["-device", "virtio-rng-pci,rng=virtio-rng0,id=rng0,bus=pci.0,addr=0x9"]
if boot_uefi and ovmf_path:
qemu_cmd += ["-drive", "file=%s/OVMF_CODE.fd,if=pflash,format=raw,unit=0,readonly=on" % ovmf_path]