On Wed, Sep 22, 2010 at 1:42 PM, Rayson Ho <rho@xxxxxxxxxx> wrote: > On Wed, 2010-09-22 at 13:33 +0100, Stefan Hajnoczi wrote: >> KVM does not generate code. Almost all the "emulation" code in the >> source tree is part of the Tiny Code Generator (TCG) used when KVM is >> not enabled (e.g. to emulate an ARM board on an x86-64 host). > > Thanks, that's what I thought too. Otherwise it would be really slow to > run KVM :) > > But if KVM is not used, and QEMU host & guest are running on the same > architecture, is TCG off? (Hmm, I guess I can find that answer myself by > reading the code). TCG is unused when KVM is enabled. There has been discussion about building without it for KVM-only builds and qemu-kvm.git can do that today with a ./configure option. > Stefan, are you accepting patches? If so, I will create a patch with the > Systemtap framework & other probes. I am not a qemu.git or qemu-kvm.git committer but I review patches in areas that I work in, like tracing. I'll be happy to give you feedback. Stefan -- 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