On Fri, Jul 23, 2010 at 4:12 AM, Mulyadi Santosa <mulyadi.sant...@gmail.com> wrote: > Hi... > > On Fri, Jul 23, 2010 at 05:30, Eduardo Cruz <eduardohmdac...@gmail.com> wrote: >> Hello, I need qemu to keep track of all the memory access made by the guest, >> including read, write and the instruction fetches. > > AFAIK there are lots of experiments on this and has produces working > patches...at least from the posting of the creator. There is even a > patch floating to start creating trace framework a while ago.
Thanks Mulyadi, I think you are referring to the tracing work that Prerna Saxena and I are doing. Here is the documentation: http://repo.or.cz/w/qemu/stefanha.git/blob/tracing:/docs/tracing.txt The patches apply to qemu.git. You can define trace events in the trace-events file and then call them from places in the code. There is a script to pretty-print the binary trace file that QEMU produces. Eduardo, if you think this might be what you're looking for, please give it a try. I am on #qemu and #kvm IRC if you need any help. Any feedback will be valuable to us as we prepare these patches for submission to qemu.git. I believe the tracing framework answers the "Any ideas of how I can record these information with qemu?" part of your question :). I don't have experience in the TCG, so I can't give advice on how to best get at the memory accesses, but I hope this helps you one step further. Stefan > perhaps you could dig a little deeper in qemu archieve....? > > -- > regards, > > Mulyadi Santosa > Freelance Linux trainer and consultant > > blog: the-hydra.blogspot.com > training: mulyaditraining.blogspot.com > >
