Re: [Xen-devel] 4.2 TODO List

[George Dunlap <dunlapg@xxxxxxxxx>]

On Tue, Feb 28, 2012 at 12:50 PM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> Day late due to doc day yesterday. FYI I'll be at the hackathon next
> week so I expect I'll be skipping that update.
>
> As usual please ping me with any updates/corrections.
>
> hypervisor, blockers:
>      * domctls / sysctls set up to modify scheduler parameters, like
>        the credit1 timeslice and schedule rate. (George Dunlap, patches
>        posted)

Hypervisor patches and (I believe) libxc patches committed; just libxl
/ xl patches outstanding.

> 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, patches posted)
>              * 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,
>        patches posted)
>      * Autoconf (Roger Pau Monné & Ian J, DONE)
>      * 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, DONE)
>
> 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 Monné, patches posted)
>      * Block script support -- follows on from hotplug script (Roger
>        Pau Monné)
>      * 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, blocked behind qemu save restore
>        patches)
>      * xl support for autospawning vncviewer (vncviewer=1 or otherwise)
>        (Nobody AFAICT)
>
>
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