Comment 6 for bug 1890290

@Greg,

Thanks for the patch, I see it already got applied into 5.2, tested and works fine,

# git log -2 --oneline
1972794 (HEAD -> master) spapr: Clarify error and documentation for broken KVM XICS
e1d322c (grafted, tag: v5.1.0-rc3, origin/master, origin/HEAD) Update version for v5.1.0-rc3 release

# /usr/bin/virt-install --connect=qemu:///system --hvm --accelerate --name 'vm1' --machine pseries --memory=8192 --vcpu=8,maxvcpus=8,sockets=1,cores=8,threads=1 --import --nographics --serial pty --memballoon model=virtio --controller type=scsi,model=virtio-scsi --disk path=/home/tests/data/avocado-vt/images/f31-ppc64le.qcow2,bus=scsi,size=10,format=qcow2 --network=bridge=virbr0,model=virtio,mac=52:54:00:5c:f1:fe --mac=52:54:00:5c:f1:fe --boot emulator=/home/qemu/ppc64-softmmu/qemu-system-ppc64,kernel=/boot/vmlinuz-5.8.0-rc5-ge9919e11e,kernel_args="root=/dev/sda2 rw console=tty0 console=ttyS0,115200 init=/sbin/init initcall_debug selinux=0" --noautoconsole --qemu-commandline=" -M pseries,ic-mode=dual,kernel-irqchip=on";virsh console vm1

Starting install...
ERROR internal error: process exited while connecting to monitor: 2020-08-07T07:05:38.633057Z qemu-system-ppc64: KVM is incompatible with ic-mode=dual,kernel-irqchip=on
This can happen with an old KVM or in a KVM nested guest.
Try without kernel-irqchip or with kernel-irqchip=off.

Regards,
-Satheesh