From 51b001909f1856c45cf87091d6e4446c266d5786 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Thu, 1 Sep 2016 22:10:21 +0100 Subject: runqemu: Enable virtio RNG for all platforms We have problems where systems simply stop booting and hang. This is due to a lack of entropy which means ssh keys and networking can't be brought up. Adding in the virtio-rng passthrough support allows host entropy to pass into the guess and avoids these hangs. This is particularly problematic after the gnutls upgrade which starts using /dev/random instead of /dev/urandom but was an issue we'd occasionally seem before that. It particualrly affected x86 and ppc machines for some reason. Signed-off-by: Richard Purdie --- scripts/runqemu | 3 +++ 1 file changed, 3 insertions(+) diff --git a/scripts/runqemu b/scripts/runqemu index b9dbe97cba..fca8d1d29d 100755 --- a/scripts/runqemu +++ b/scripts/runqemu @@ -806,6 +806,9 @@ class BaseConfig(object): self.qemu_opt = "%s %s %s %s %s %s" % (qemu_bin, self.get('NETWORK_CMD'), self.qemu_opt_script, self.get('ROOTFS_OPTIONS'), self.get('QB_DTB'), self.get('QB_OPT_APPEND')) + # Enable virtio RNG else we can run out of entropy in guests + self.qemu_opt += " -device virtio-rng-pci" + if self.serialstdio: logger.info("Interrupt character is '^]'") cmd = "stty intr ^]" -- cgit 1.2.3-korg