[Xen-devel] 4.2 TODO update

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

This weeks update. As usual please ping me with any updates.

hypervisor, blockers:
      * round-up of the closing of the security hole in MSI-X
        passthrough (uniformly - i.e. even for Dom0 - disallowing write
        access to MSI-X table pages). (Jan Beulich, DONE)
      * domctls / sysctls set up to modify scheduler parameters, like
        the credit1 timeslice and schedule rate. (George Dunlap)
      * get the interface changes for sharing/paging/mem-events done and
        dusted so that 4.2 is a stable API that we hold to. (Tim Deegan,
        Andres Lagar-Cavilla et al)
              * sharing patches posted (DONE)

tools, blockers:

      * libxl stable API -- we would like 4.2 to define a stable API
        which downstream's can start to rely on not changing. Aspects of
        this are:
              * add libxl_defbool and generally try and arrange that
                memset(foo,0,...) requests the defaults (Ian Campbell,
                patches reposted)
              * Safe fork vs. fd handling hooks. This is an API
                addition, so maybe not required fro stable API, bit need
                to have for 4.2? (Ian J)
              * xl feature parity with xend wrt driver domain support
                (George Dunlap)
              * More formally deprecate xm/xend. Manpage patches already
                in tree. Needs release noting and communication around
                -rc1 to remind people to test xl.
      * Correct paging/sharing tools buffer mlocking (Tim, Andres)
      * Autoconf (Roger Pau Monnà & Ian J, blocked on test
        infrastructure changes, Roger to respin patch when test system
        ready for new features)
      * xl support for "rtc_timeoffset" and "localtime" (Nobody AFAICT)

hypervisor, nice to have:

      * solid implementation of sharing/paging/mem-events (using work
        queues) (Tim Deegan, Olaf Herring et al)
      * A long standing issue is a fully synchronized p2m (locking
        lookups) (Andres Lagar-Cavilla, patches posted?)

tools, nice to have:

      * Hotplug script stuff -- internal to libxl (I think, therefore I
        didn't put this under stable API above) but still good to have
        for 4.2? (Roger Pau MonnÃ, patches posted)
      * Block script support -- follows on from hotplug script (Roger
        Pau MonnÃ)
      * Configure/control paging via xl/libxl (Olaf Herring)
      * Upstream qemu feature patches:
              * Upstream qemu PCI passthrough support (Anthony Perard,
                patches sent)
              * Upstream qemu save restore (Anthony Perard, Stefano
                Stabellini, patches sent, waiting for upstream ack)
      * Nested-virtualisation (currently should be marked experimental,
        likely to release that way? Consider nested-svm separate to
        nested-vmx. Nested-svm is in better shape)
      * Initial xl support for Remus (memory checkpoint, blackholing)
        (Shriram, patches posted)
      * xl support for autospawning vncviewer (vncviewer=1 or otherwise)
        (Nobody AFAICT)


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