Paolo Bonzini <pbonzini@xxxxxxxxxx> writes: > On 25/11/2014 18:13, Peter Maydell wrote: >> On 25 November 2014 at 17:05, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: >>> > So there is no register that says "this breakpoint has triggered" or >>> > "this watchpoint has triggered"? >> Nope. You take a debug exception; the syndrome register tells >> you if it was a bp or a wp, and if it was a wp the fault address >> register tells you the address being accessed (if it was a bp >> you know the program counter, obviously). The debugger is expected >> to be able to figure it out from there, if it cares. > > That's already good enough---do the KVM_DEBUG_EXIT_* constants match the > syndrome register, or if not why? No they don't. I did consider it at the time but I was wary of pulling too much over into the uapi headers wholesale. If your happy to do that I'll include the change in my next version. I could also rationalise the exit handlers as they all pretty much do the same thing (save for the exit/syndrome related info). Again I was keeping things nicely separated in case any particular exception needed excessive special case handling. Would you like those changes? > > Paolo -- Alex Bennée -- 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
