Hi. When handle_io() is called, rip is currently proceeded *before* actually having I/O handled by qemu in userland. Upon implementing Kemari for KVM(http://www.mail-archive.com/kvm@xxxxxxxxxxxxxxx/msg25141.html) mainly in userland qemu, we encountered a problem that synchronizing the content of VCPU before handling I/O in qemu is too late because rip is already proceeded in KVM, Although we avoided this issue with temporal hack, I would like to ask a few question on skip_emulated_instructions. 1. Does rip need to be proceeded before having I/O handled by qemu? 2. If no, is it possible to divide skip_emulated_instructions(), like rec_emulated_instructions() to remember to next_rip, and skip_emulated_instructions() to actually proceed the rip. 3. svm has next_rip but when it is 0, nop is emulated. Can this be modified to continue without emulating nop when next_rip is 0? Thanks, Yoshi -- 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
