linux-kernel - [GIT PULL] xen: fixes for 4.19-rc4

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Date:   Fri, 14 Sep 2018 18:25:31 +0200
From:   Juergen Gross <jgross@...e.com>
To:     torvalds@...ux-foundation.org
Cc:     linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
        boris.ostrovsky@...cle.com
Subject: [GIT PULL] xen: fixes for 4.19-rc4

Linus,

Please git pull the following tag:

 git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git for-linus-4.19c-rc4-tag

xen: fixes for 4.19-rc4

It contains some minor cleanups and fixes and:

- a new knob for controlling scrubbing of pages returned by the Xen
  balloon driver to the Xen hypervisor to address a boot performance
  issue seen in large guests booted pre-ballooned

- a fix of a regression in the gntdev driver which made it impossible
  to use fully virtualized guests (HVM guests) with a 4.19 based dom0

- a fix in Xen cpu hotplug functionality which could be triggered by
  wrong admin commands (setting number of active vcpus to 0)

One further note: the patches have all been under test for several days
in another branch. This branch has been rebased in order to avoid merge
conflicts.


Thanks.

Juergen

 .../ABI/stable/sysfs-devices-system-xen_memory     |  9 ++++++++
 Documentation/admin-guide/kernel-parameters.txt    |  6 +++++
 drivers/xen/Kconfig                                | 10 ++++++---
 drivers/xen/cpu_hotplug.c                          | 15 +++++++------
 drivers/xen/events/events_base.c                   |  2 +-
 drivers/xen/gntdev.c                               | 26 +++++++++++++---------
 drivers/xen/manage.c                               |  6 +++--
 drivers/xen/mem-reservation.c                      |  4 ++++
 drivers/xen/xen-balloon.c                          |  3 +++
 include/xen/mem-reservation.h                      |  7 +++---
 10 files changed, 61 insertions(+), 27 deletions(-)

Josh Abraham (1):
      xen: fix GCC warning and remove duplicate EVTCHN_ROW/EVTCHN_COL usage

Marek Marczykowski-Górecki (1):
      xen/balloon: add runtime control for scrubbing ballooned out pages

Michal Hocko (1):
      xen/gntdev: fix up blockable calls to mn_invl_range_start

Olaf Hering (1):
      xen: avoid crash in disable_hotplug_cpu

Vitaly Kuznetsov (1):
      xen/manage: don't complain about an empty value in control/sysrq node