On Mon, Nov 18, 2013 at 06:58:06PM +0530, Pradipta Kr. Banerjee wrote:
Creating a qemu VM with /dev/hwrng as backed RNG device throws the following error - "Could not open '/dev/hwrng': Operation not permitted" This patch fixes the issue
Signed-off-by: Pradipta Kr. Banerjee <bpradip@in.ibm.com> --- src/qemu/qemu_cgroup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c index ace7e35..d9ebb30 100644 --- a/src/qemu/qemu_cgroup.c +++ b/src/qemu/qemu_cgroup.c @@ -39,7 +39,7 @@
static const char *const defaultDeviceACL[] = { "/dev/null", "/dev/full", "/dev/zero", - "/dev/random", "/dev/urandom", + "/dev/random", "/dev/urandom", "/dev/hwrng", "/dev/ptmx", "/dev/kvm", "/dev/kqemu", "/dev/rtc", "/dev/hpet", "/dev/vfio/vfio", NULL,
NACK, for any device listed in the XML, we should add it in the per-VM cgroups setup code. The existing /dev/random & /dev/urandom devices are there because they are used for basic crypto libraries unrelated to the XML config. The /dev/hwrng device does not fall into this scenario. Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|