Xen 4.12 Development Update

[Juergen Gross <jgross@suse.com>]

This email only tracks big items for xen.git tree. Please reply for items you
would like to see in 4.12 so that people have an idea what is going on and
prioritise accordingly.

You're welcome to provide description and use cases of the feature you're
working on.

= Timeline =

We now adopt a fixed cut-off date scheme. We will release about every 8 months.
The upcoming 4.12 timeline are as followed:

* Last posting date: December 14th, 2018
  Last posting date for patches touching ARM code: December 1st, 2018
* Hard code freeze: January 11th, 2019
  Hard code freeze for patches touching ARM code: December 21st, 2018
* RC1: TBD
* Release: March 7th, 2019

!!! Last posting date for patches touching ARM code is only 2 days away !!!

Note that we don't have freeze exception scheme anymore. All patches
that wish to go into 4.12 must be posted initially no later than the
last posting date and finally no later than the hard code freeze. All
patches posted after that date will be automatically queued into next
release.

RCs will be arranged immediately after freeze.

We recently introduced a jira instance to track all the tasks (not only big)
for the project. See: https://xenproject.atlassian.net/projects/XEN/issues.

Some of the tasks tracked by this e-mail also have a corresponding jira task
referred by XEN-N.

I have started to include the version number of series associated to each
feature. Can each owner send an update on the version number if the series
was posted upstream?

= Projects =

== Hypervisor == 

*  Per-cpu tasklet
  -  XEN-28
  -  Konrad Rzeszutek Wilk

*  Improvements to domain creation (v2)
  -  Andrew Cooper

*  Argo (inter-VM communication)
  -  Christopher Clark

*  Core aware scheduling (RFC v1)
  -  Dario Faggioli

*  Core aware scheduling for credit2 (RFC v1)
  -  Dario Faggioli

=== x86 === 

*  hypervisor x86 instruction emulator additions for AVX512 (v5)
  -  Jan Beulich

*  PV-IOMMU (v7)
  -  Paul Durrant

*  HVM guest CPU topology support (RFC)
  -  Chao Gao

*  Intel Processor Trace virtualization enabling (v1)
  -  Luwei Kang

*  Linux stub domains (RFC v2)
  -  Marek Marczykowski-Górecki

*  qemu deprivilege (v4)
  -  George Dunlap

*  Improve late microcode loading (v4)
  -  Chao Gao

*  Fixes to #DB injection
  -  Andrew Cooper

*  CPUID/MSR Xen/toolstack improvements
  -  Andrew Cooper

*  Improvements to domain_crash()
  -  Andrew Cooper

=== ARM === 

*  dom0less (boot multiple domains from device tree) (v4)
  -  Stefano Stabellini

*  Implement Set/Way operations (RFC)
  -  Julien Grall

*  TEE mediator (and OP-TEE) support in XEN (v2)
  -  Volodymyr Babchuk

== Grub2 == 

*  Support PVH guest boot (v5)
  -  Juergen Gross

== Completed == 

*  guest resource mapping
  -  Paul Durrant

*  PV-only hypervisor
  -  Wei Liu

*  HVM-only hypervisor
  -  Wei Liu

*  Make credit2 scheduler the default
  -  George Dunlap


Juergen Gross

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