> Date: Mon, 23 Jan 2012 13:19:05 +0000
> From: Ian Campbell <Ian.Campbell@citrix.com>
> To: xen-devel <xen-devel@lists.xensource.com>
> Subject: [Xen-devel] Xen 4.2 TODO List Update
> Message-ID: <1327324745.24561.124.camel@zakaz.uk.xensource.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Newly updated list follows. Please send me corrections (especially
> "done"). I''ve stopped CCing everyone, since I guess it
is mostly spam to
> the majority.
>
> 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 -- more fixes
> required than first thought, patches posted)
> * 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)
> * mem event ring management posted, seems close to going
> in.
Mem event ring management has gone in, so you can chalk it off the list.
> * sharing patches posted
A repost of the sharing queue Wed evening, after the last round of
comments. Any feedback from tools maintainers on "[PATCH 09 of 12] Update
memshr API and tools"?
Thanks
Andres
>
> 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:
> * event handling (Ian Jackson, posted several rounds,
> nearing completion?)
> * drop libxl_device_model_info (move bits to build_info or
> elsewhere as appropriate) (Ian Campbell, first RFC sent)
> * add libxl_defbool and generally try and arrange that
> memset(foo,0,...) requests the defaults (Ian Campbell,
> first RFC sent)
> * topologyinfo datastructure should be a list of tuples,
> not a tuple of lists. (nobody currently looking at this,
> not 100% sure this makes sense, could possibly defer and
> change after 4.2 in a compatible way)
> * xl to use json for machine readable output instead of sexp by
> default (Ian Campbell to revisit existing patch)
> * xl support for vcpu pinning (Dario Faggioli)
> * xl feature parity with xend wrt driver domain support (George
> Dunlap)
> * Integrate qemu+seabios upstream into the build (patches
> reposted, pending). No change in default qemu for 4.2.
> * More formally deprecate xm/xend. Manpage patches already in
> tree. Needs release noting and communication around -rc1 to
> remind people to test xl.
>
> 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)
> * NUMA improvement: domain affinity consistent with cpupool
> membership (Dario Faggioli, Jeurgen Gross -- patch 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 Monet was looking at this but its looking
> like a big can-o-worms. (discussion on-going)
> * Block script support -- follows on from hotplug script (Roger
> Pau Monet)
> * libyajl v2 support (patch posted by Roger Pau Monet, blocked on
> autoconf?)
> * Configure/control paging via xl/libxl (Olaf Herring)
> * Upstream qemu feature patches:
> * Upstream qemu PCI passthrough support (Anthony Perard)
> * Upstream qemu save restore (Anthony Perard)
> * 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)
>
> Tools, need to decide if pre- or post-4.2 feature:
>
> * Autoconf (Roger Pau Monet posted a patch)
>
>
>