AnsweredAssumed Answered

QEMU/KVM on T1040RDB

Question asked by Vincenzo Do on Dec 4, 2015
Latest reply on Dec 15, 2015 by Vincenzo Do

Hello,

 

I'm testing kvm/qemu on a T1040RDB but I get the following error when launching the virtual machine with the following parameters:

 

qemu-system-ppc64 -enable-kvm -nographic -m 512 -M ppce500 -kernel vmlinux -initrd rootfs.ext2.gz -append "root=/dev/ram rw loglevel=7 console=ttyS0,115200" -dtb mpc8544ds.dtb -S

 

Can't open directory /proc/device-tree/cpus/

Can't open directory /proc/device-tree/cpus/

Can't open directory /proc/device-tree/cpus/

Can't open directory /proc/device-tree/cpus/

Can't open directory /proc/device-tree/cpus/

Can't open directory /proc/device-tree/cpus/

Can't open directory /proc/device-tree/cpus/

Can't open directory /proc/device-tree/cpus/

 

This message seems to come from the qemu/target-ppc/kvm.c file (line 1752). And the method which produces it is used to find a device tree node for a CPU with clock-frequency property.

 

And after these messages the process blocks and I have to reboot the board. Does anyone have a clue on how to solve this?

 

I'm using QEMU 2.2.0 and kernel 3.12.

 

Thank you and best regards,

 

Vincent

Outcomes