On 24/06/2015 13:40, Pavel Dovgaluk wrote: >>> > > + /* If not executing code then assume we are ok. */ >>> > > + if (cpu->current_tb == NULL) { >>> > > + return true; >>> > > + } >>> > > + return cpu->can_do_io != 0; >> > >> > For what it's worth, I think the "if" here is dead. Pavel? > cpu_can_do_io can be called from cpus.c and translate-all.c > In both cases these calls could be made outside the generated code.
Yes, but doesn't your commit 626cf8f (icount: set can_do_io outside TB execution, 2014-12-08) cause cpu->can_do_io == 0 to imply cpu->current_tb != NULL? Paolo