Archived/Xen Roadmap/4.3: Difference between revisions
(Explain why some external projects are being tracked) |
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<pre> |
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* Linux console improvements |
* Linux console improvements |
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owner: jan@novell |
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* Default to QEMU upstream |
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</pre> |
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=== Not yet completed === |
=== Not yet completed === |
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* blktap3 |
* blktap3 |
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owner: thanos@citrix |
owner: thanos@citrix |
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status: |
status: in progress |
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* Default to QEMU upstream |
* Default to QEMU upstream |
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- qemu-based stubdom (Linux or BSD libc) |
- qemu-based stubdom (Linux or BSD libc) |
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owner: anthony@citrix |
owner: anthony@citrix |
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status: |
status: in progress |
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qemu-upstream needs a more fully-featured libc than exists in |
qemu-upstream needs a more fully-featured libc than exists in |
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minios. Either work on a minimalist linux-based stubdom with |
minios. Either work on a minimalist linux-based stubdom with |
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glibc, or port one of the BSD libcs to minios. |
glibc, or port one of the BSD libcs to minios. |
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- enable dirtybit tracking during migration (external) |
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status: patches submitted to QEMU and to LibXL. |
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owner: anthony@citrix |
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status: ? |
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- xl cd-{insert,eject} (external) |
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status: intilal implementation submitted |
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* Persistent grants |
* Persistent grants (external) |
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owner: @citrix |
owner: @citrix |
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status: Initial implementation posted |
status: Initial implementation posted |
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* Multi-page blk rings |
* Multi-page blk rings (external) |
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- blkback in kernel (konrad@oracle, ?@intel) |
- blkback in kernel (konrad@oracle, ?@intel) |
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- qemu blkback |
- qemu blkback |
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status: ? |
status: ? |
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* Multi-page net protocol |
* Multi-page net protocol (external) |
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owner: ijc@citrix or annie.li@oracle |
owner: ijc@citrix or annie.li@oracle |
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status: Initial patches posted (by Wei Liu) |
status: Initial patches posted (by Wei Liu) |
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status: Not started |
status: Not started |
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* libvirt integration |
* libvirt/libxl integration (external) |
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- Migration |
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owner: ? |
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owner: cyliu@suse (?) |
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status: first draft implemented, not yet submitted |
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- Itemize other things that need work |
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| ⚫ | |||
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- Features available in |
- Features available in libvirt/KVM not available in libvirt/libxl |
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* V4V: Inter-domain communication |
* V4V: Inter-domain communication |
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* Linux console improvements |
* Linux console improvements |
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owner: |
owner: ? |
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-xHCI debug port (Needs hardware) |
-xHCI debug port (Needs hardware) |
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-Firewire (needs hardware) |
-Firewire (needs hardware) |
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Revision as of 11:22, 21 September 2012
Proposed timeline
We are planning on a 9-month release cycle. Xen 4.2 was released on 17 September 2012. Based on that, below are our estimated dates:
- Feature Freeze: 25 March, 2013
- First RC: 6 May 2013
- Release: 17 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 list
Below is a list of features we're tracking for this release. If you have updates to a tracked feature you are working on, or are working on a feature and wish it to be tracked, please let me know.
NB: Several of the items on this list marked (external). These are not part of the Xen tree, but are directly related to our users' experience (e.g., work in Linux or qemu) or to integration with other important projects (e.g., libvirt indings). Since all of these are part of the Xen community work, and comes from the same pool of labor, it makes sense to track the progress here, even though they won't explicitly be released as part of 4.3.
Completed
* Linux console improvements -EHCI debug port * Default to QEMU upstream - pci pass-thru (external)
Not yet completed
* 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: initial design proposed
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: in progress
* Default to QEMU upstream
- qemu-based stubdom (Linux or BSD libc)
owner: anthony@citrix
status: in progress
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.
- enable dirtybit tracking during migration (external)
status: patches submitted to QEMU and to LibXL.
- xl cd-{insert,eject} (external)
status: intilal implementation submitted
* Persistent grants (external)
owner: @citrix
status: Initial implementation posted
* Multi-page blk rings (external)
- blkback in kernel (konrad@oracle, ?@intel)
- qemu blkback
status: ?
* Multi-page net protocol (external)
owner: ijc@citrix or annie.li@oracle
status: Initial patches posted (by Wei Liu)
expand the network ring protocol to allow multiple pages for
increased throughput
* Scalability: 16TiB of RAM
owner: jan@suse
status: Not started
* libvirt/libxl integration (external)
- Migration
owner: cyliu@suse (?)
status: first draft implemented, not yet submitted
- Itemize other things that need work
To begin with, we need someone to go and make some lists:
- Features available in libvirt/KVM not available in libvirt/libxl
See http://libvirt.org/hvsupport.html
- Features available in xl/Xen but not available in libvirt/Xen
* V4V: Inter-domain communication
owner (Xen): jean.guyader@citrix.com
status (Xen): patches submitted
owner (Linux driver): stefano.panella@citrix
status (Linux driver): in progress
* 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: ?
-xHCI debug port (Needs hardware)
-Firewire (needs hardware)
* 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?
