Christoph Lameter wrote: > On Thu, 24 Jan 2008, Andrea Arcangeli wrote: > > >> I think you should consider if you can also build a rmap per-MM like >> KVM does and index it by the virtual address like KVM does. >> > > Yes we have that. > > If we have that then we do not need the mmu_notifier. > We could call it with a page parameter and then walk the KVM or XPmem > reverse map to directly find all the ptes we need to clear. There is no > need then to add a new field to the mm_struct. >
The reason the new field is needed is because the Linux mm does not understand the secondary pte format and zapping protocol. Locating the secondary ptes is just a part of the problem. -- Any sufficiently difficult bug is indistinguishable from a feature. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
