machine/qemu*: Add comment regarding the reason for virtio-rng-pci

Bring across the comment that was in runqemu regarding why the
virtio-rng-pci device was needed. This comment is added to each location
where the virtio-rng-pci device is added.

(From OE-Core rev: bc5d1fdea674e842e4b0c45b38782930ec133051)

Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/conf/machine/qemuarm64.conf b/meta/conf/machine/qemuarm64.conf
index a0920fe0e4..d0750624a8 100644
--- a/meta/conf/machine/qemuarm64.conf
+++ b/meta/conf/machine/qemuarm64.conf
@@ -15,6 +15,7 @@ QB_MEM = "-m 512"
 QB_MACHINE = "-machine virt"
 QB_CPU = "-cpu cortex-a57"
 QB_KERNEL_CMDLINE_APPEND = "console=ttyAMA0,38400"
+# Add the 'virtio-rng-pci' device otherwise the guest may run out of entropy
 QB_OPT_APPEND = "-show-cursor -device virtio-rng-pci"
 QB_TAP_OPT = "-netdev tap,id=net0,ifname=@TAP@,script=no,downscript=no -device virtio-net-device,netdev=net0,mac=@MAC@"
 QB_SLIRP_OPT = "-netdev user,id=net0 -device virtio-net-device,netdev=net0"