Re: Xen 4.3 development update

["Roger Pau Monné" <roger.pau@citrix.com>]

On 19/09/12 18:58, George Dunlap wrote:
> = Timeline =
> 
> We are planning on a 9-month release cycle.  Based on that, below are
> our estimated dates:
> * Feature Freeze: 1 March, 2013
> * First RC: 15 April 2013
> * Release: 1 June 2013
> 
> The RCs and release will of course depend on stability and bugs, and
> will therefore be fairly unpredictable.  The feature freeze may be
> slipped for especially important features which are near completion.
> 
> = Feature tracking =
> 
> Below is a list of features we're tracking for this release.  Please
> respond to this mail with any updates to the status.  If the status
> is "?", as most of them are, please respond with the status!  Example
> statuses include "not started", "in progress", "initial implementation
> submitted for review", "patches submitted".
> 
> There are a number of items whose owners are marked as "?".  If you
> are working on this, or know who is working on it, please respond and
> let me know.  Alternately, if you would *like* to work on it, please
> let me know as well.
> 
> And if there is something you're working on you'd like tracked, please
> respond, and I will add it to the list.
> 
> 
> * PVH mode, domU (w/ Linux)
>   owner: mukesh@oracle
>   status: ?
> 
> * PVH mode, dom0 (w/ Linux)
>   owner: mukesh@oracle
>   status: ?
> 
> * Event channel scalability
>   owner: attilio@citrix
>   status: ?
>   Increase limit on event channels (currently 1024 for 32-bit guests,
>   4096 for 64-bit guests)
> 
> * ARM server port
>   owner: ijc@citrix
>   status: Core hypervisor patches accepted; Linux paches pending
> 
> * NUMA scheduler affinity
>   critical
>   owner: dario@citrix
>   status: ?
> 
> * NUMA Memory migration
>   owner: dario@citrix
>   status: ?
> 
> * blktap3
>   owner: thanos@citrix
>   status: ?
> 
> * Default to QEMU upstream
>  - qemu-based stubdom (Linux or BSD libc)
>    owner: anthony@citrix
>    status: ?
>    qemu-upstream needs a more fully-featured libc than exists in
>    minios.  Either work on a minimalist linux-based stubdom with
>    glibc, or port one of the BSD libcs to minios.
> 
>  - pci pass-thru
>    owner: anthony@citrix
>    status: ?
> 
> * Persistent grants
>   owner: @citrix
>   status: ?

I'm taking Oliver's patch, so:

owner: roger.pau@citrix
status: in progress

> 
> * Multi-page blk rings
>  - blkback in kernel (konrad@oracle, ?@intel)
>  - qemu blkback
>   status: ?
> 
> * Multi-page net protocol
>   owner: ?
>   status: ?
>   expand the network ring protocol to allow multiple pages for
>   increased throughput
> 
> * Scalability: 16TiB of RAM
>   owner: jan@suse
>   status: ?
> 
> * libvirt integration
>   owner: ?
>   status: ?
>   To begin with, we need someone to go and make some lists:
>   - Features available in libvirt/KVM not available in libvirt/Xen
>   - Features available in xl/Xen but not available in libvirt/Xen
> 
> * xl vm-{export,import}
>   owner: ?
>   status: ?
>   Allow xl to import and export VMs to other formats; particularly
>   ovf, perhaps the XenServer format, or more.
> 
> 
> * xl USB pass-through for PV guests
>   owner: ?
>   status: ?
>   - Port the xend PV pass-through functionality to xl.
>   - Make sure qemu-based USB with qemu-upstream works
>   - Upstream the Linux frontend/backend drivers
> 
> * openvswitch toostack integration
>   owner: roger@citrix
>   status: Sample script posted by Bastian ("[RFC] openvswitch support script")
> 
> * Rationalized backend scripts (incl. driver domains)
>   owner: roger@citrix
>   status: ?
> 
> * Linux console improvements
>   owner: jan@suse
>   -EHCI debug port (done, to be submitted)
>   -xHCI debug port
>   -Firewire
> 
> * CPUID-based idle (don't rely on ACPI info f/ dom0)
>   owner: jan@suse
>   status: done, to be submitted
> 
> * Remove hardcoded mobprobe's in xencommons
>   owner: ?
>   status: ?
> 
> * Make storage migration possible
>   owner: ?
>   status: ?
>   There needs to be a way, either via command-line or via some hooks,
>   that someone can build a "storage migration" feature on top of libxl
>   or xl.
> 
> * Full-VM snapshotting
>   owner: ?
>   status: ?
>   Have a way of coordinating the taking and restoring of VM memory and
>   disk snapshots.  This would involve some investigation into the best
>   way to accomplish this.
> 
> * VM Cloning
>   owner: ?
>   status: May need review
>   Again, a way of coordinating the memory and disk aspects.  Research
>   into the best way to do this would probably go along with the
>   snapshotting feature.
> 
> * Memory: Replace PoD with paging mechanism
>   owner: george@citrix
>   status: May need review
> 
> * PV audio (audio for stubdom qemu)
>   owner: stefano.panella@citrix
>   status: ?
> 
> * Managed domains?
> 
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