On Sun, Nov 27, 2011 at 12:36:55PM +0200, Avi Kivity wrote: > On 11/27/2011 04:42 AM, Liu Ping Fan wrote: > > From: Liu Ping Fan <pingfank@xxxxxxxxxxxxxxxxxx> > > > > The vcpu can be safely released when > > --1.guest tells us that the vcpu is not needed any longer. > > --2.vcpu hits the last instruction _halt_ > > > > If both of the conditions are satisfied, kvm exits to userspace > > with the reason vcpu dead. So the user thread can exit safely. > > > > > > Seems to be completely unnecessary. If you want to exit from the vcpu > thread, send it a signal. > Also if guest "tells us that the vcpu is not needed any longer" (via ACPI I presume) and vcpu actually doing something critical instead of sitting in 1:hlt; jmp 1b loop then it is guest's problem if it stops working after vcpu destruction. -- Gleb. -- 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
