On 08/02/2017 14:18, Christian Borntraeger wrote: >> VCPU thread service thread >> -------------------------------------------------------------- >> raise signal >> signal handler >> set run->immediate_exit >> KVM_RUN >> check run->immediate_exit > So the idea is to have both, a signal and this flag and you want userspace > to set this flag in its signal handler? Yes. This flag can also replace qemu_cpu_kick_self. > So we no longer block this signal > in QEMU then. Makes sense. > Do you have the QEMU patch ready, to do a better review of the whole idea? I have something that seems to work, but I've not stressed it at all and it depends on a few cleanups to the SIGBUS handling code (which is currently x86-specific). Paolo
