[FSL P50x0] KVM HV doesn't work anymore

Christian Zigotzky chzigotzky at xenosoft.de
Sat May 15 19:48:16 AEST 2021

Hi All,

I bisected today [1] and the bisecting itself was OK but the reverting 
of the bad commit doesn't solve the issue. Do you have an idea which 
commit could be resposible for this issue? Maybe the bisecting wasn't 
successful. I will look in the kernel git log. Maybe there is a commit 
that affected KVM HV on FSL P50x0 machines.


[1] https://forum.hyperion-entertainment.com/viewtopic.php?p=53209#p53209

On 14 May 2021 at 10:10 am, Christian Zigotzky wrote:
> Hi All,
> The RC1 of kernel 5.13 doesn't boot in a virtual e5500 QEMU machine 
> with KVM HV anymore. I see in the serial console that the uImage 
> doesn't load. I use the following QEMU command for booting:
> qemu-system-ppc64 -M ppce500 -cpu e5500 -enable-kvm -m 1024 -kernel 
> uImage-5.13 -drive 
> format=raw,file=MintPPC32-X5000.img,index=0,if=virtio -netdev 
> user,id=mynet0 -device e1000,netdev=mynet0 -append "rw root=/dev/vda" 
> -device virtio-vga -device virtio-mouse-pci -device 
> virtio-keyboard-pci -device pci-ohci,id=newusb -device 
> usb-audio,bus=newusb.0 -smp 4
> The kernel boots without KVM HV.
> Have you already tested KVM HV with the kernel 5.13?
> Thanks,
> Christian

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