[GIT PULL] xen: bug fixes for 4.1-rc2

[David Vrabel]

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Linus,

Please git pull the following tag:

 git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git for-linus-4.1b-rc2-tag

xen: bug fixes for 4.1-rc2

- - Fix blkback regression if using persistent grants.
- - Fix various event channel related suspend/resume bugs.
- - Fix AMD x86 regression with X86_BUG_SYSRET_SS_ATTRS.
- - SWIOTLB on ARM now uses frames <4 GiB (if available) so device only
  capable of 32-bit DMA work.

Thanks.

David

 arch/arm/include/asm/xen/page.h             |    1 +
 arch/arm/xen/mm.c                           |   15 ++++++++++++
 arch/x86/include/asm/hypervisor.h           |    2 +-
 arch/x86/include/asm/xen/page.h             |    5 ++++
 arch/x86/kernel/cpu/hypervisor.c            |    4 +--
 arch/x86/xen/enlighten.c                    |   27 ++++++++++++++-------
 arch/x86/xen/suspend.c                      |   10 ++++++++
 drivers/block/xen-blkback/blkback.c         |   35 +++++++++------------------
 drivers/tty/hvc/hvc_xen.c                   |   18 +++++++++++++-
 drivers/xen/events/events_2l.c              |   10 ++++++++
 drivers/xen/events/events_base.c            |    7 +++---
 drivers/xen/gntdev.c                        |   28 +++------------------
 drivers/xen/grant-table.c                   |   28 +++++++++++++++++++++
 drivers/xen/manage.c                        |    9 ++++---
 drivers/xen/swiotlb-xen.c                   |    2 +-
 drivers/xen/xen-pciback/conf_space.c        |    6 ++---
 drivers/xen/xen-pciback/conf_space.h        |    2 +-
 drivers/xen/xen-pciback/conf_space_header.c |    2 +-
 drivers/xen/xenbus/xenbus_probe.c           |   29 ++++++++++++++++++++++
 include/xen/grant_table.h                   |    1 +
 include/xen/xen-ops.h                       |    1 +
 21 files changed, 168 insertions(+), 74 deletions(-)

Ben Hutchings (1):
      xen-pciback: Add name prefix to global 'permissive' variable

Bob Liu (2):
      xen/blkback: safely unmap purge persistent grants
      xen/grant: introduce func gnttab_unmap_refs_sync()

Boris Ostrovsky (6):
      xen: Suspend ticks on all CPUs during suspend
      xen/events: Clear cpu_evtchn_mask before resuming
      xen/xenbus: Update xenbus event channel on resume
      xen/console: Update console event channel on resume
      xen/events: Set irq_info->evtchn before binding the channel to CPU in __startup_pirq()
      hypervisor/x86/xen: Unset X86_BUG_SYSRET_SS_ATTRS on Xen PV guests

Stefano Stabellini (1):
      xen: Add __GFP_DMA flag when xen_swiotlb_init gets free pages on ARM
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