[Qemu-devel] tracing guest memory access

[Ilia K.]

Hi,
I need to trace all data loads/stores of a guest OS running under qemu (for now, both guest and host are x86-64, and virtual addresses should be sufficient). Looking into qemu-devel archive I see that this subject is brought up not very frequently, but regularly. I know, there is a general tracing support, but I am not sure how suitable it is for such high-volume tracing. Also, some TCG hacking is needed for this to work. Several people has tackled with the subject, particularly, Lluís Vilanova, who still may be around in this mailing list (or should I CC him?). However, I do not see a relevant code in git master.

Anybody knows what is a current state of guest tracing under qemu?
Any pointers to official/unofficial git repos with a (partial) implementation?

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Thanks,
Ilia.