Hello List, I am a KVM newbie and studying KVM mmu code. On the existing guest, I am trying to track all guest writes by marking page table entry as read-only in EPT entry [ I am using Intel machine with vmx and ept support ]. Looks like EPT support re-uses shadow page table(SPT) code and hence some of SPT routines. I was thinking of below possible approach. Use pte_list_walk() to traverse through list of sptes and use mmu_spte_update() to flip the PT_WRITABLE_MASK flag. But all SPTEs are not part of any single list; but on separate lists (based on gfn, page level, memory_slot). So, recording all the faulted guest GFN and then using above method work ? Can you please help if there is more direct and cleaner way to do it ? (or if I am totally off the track) Thanks ! -- Sunil -- 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
