[GIT PULL] xen: regression and bug fixes for 4.0-rc1

[GIT PULL] xen: regression and bug fixes for 4.0-rc1

[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 stable/for-linus-4.0-rc1-tag

xen: regression and bug fixes for 4.0-rc1

- - Fix two regression introduced in 4.0-rc1 affecting PV/PVH guests in
  certain configurations.
- - Prevent pvscsi frontends bypassing backend checks.
- - Allow privcmd hypercalls to be preempted even on kernel with
  voluntary preemption.  This fixes soft-lockups with long running
  toolstack hypercalls (e.g., when creating/destroying large domains).

Thanks.

David

 arch/x86/kernel/entry_32.S |    3 +++
 arch/x86/kernel/entry_64.S |    3 +++
 arch/x86/xen/enlighten.c   |   20 +++++++++++++++++++-
 drivers/xen/Makefile       |    2 +-
 drivers/xen/preempt.c      |   44 ++++++++++++++++++++++++++++++++++++++++++++
 drivers/xen/privcmd.c      |    2 ++
 drivers/xen/xen-scsiback.c |   14 ++++++--------
 include/xen/xen-ops.h      |   26 ++++++++++++++++++++++++++
 8 files changed, 104 insertions(+), 10 deletions(-)

Boris Ostrovsky (2):
      x86/xen: Make sure X2APIC_ENABLE bit of MSR_IA32_APICBASE is not set
      x86/xen: Initialize cr4 shadow for 64-bit PV(H) guests

David Vrabel (1):
      x86/xen: allow privcmd hypercalls to be preempted

Juergen Gross (1):
      xen-scsiback: mark pvscsi frontend request consumed only after last read
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