On Sat, Jul 06, 2013 at 10:41:12AM +0300, Gleb Natapov wrote: > On Fri, Jul 05, 2013 at 04:16:55PM -0300, Marcelo Tosatti wrote: > > > > MMIO/PIO emulation should be interrupted if the system is restarted. > > Otherwise in progress IO emulation continues at the instruction pointer, > > even after vcpus' IP has been modified by KVM_SET_REGS. > > > > Use IP change as an indicator to reset MMIO/PIO emulation state. > > > Userspace has to return to the kernel to complete pending IO operation. > This is documented in Documentation/virtual/kvm/api.txt. If this is not > what program does it is a bug. What userspace you see the problem with? You're right, this patch should not be necessary. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
