forgot to reply-to-all... > Another thing that's really been useful to me there was the gdb interface. Qemu has a pretty good gdb stub and for KVM support all you need to do is implement the register synchronization. > I've used GDB a lot for the host kernel to debug the initial things, but QEMU/GDB seemed to get really confused when dealing with things like cache flushes or address space switches and backtraces and single stepping is somewhat flaky - I don't know the reason why. But I will try to look into it anyhow - especially when you say it's quite easy - since I'm sure it'll be useful not just for me but for users of the final implementation as well. Thanks.
