On 19/06/20 14:36, Igor Mammedov wrote: > qemu-kvm -m 2G -smp 4,maxcpus=8 -monitor stdio > (qemu) device_add qemu64-x86_64-cpu,socket-id=4,core-id=0,thread-id=0 > > in guest fails with: > > smpboot: do_boot_cpu failed(-1) to wakeup CPU#4 > > which makes me suspect that INIT/SIPI wasn't delivered > > Is it a know issue? > No, it isn't. I'll revert. Paolo