[GIT PULL] Second batch of KVM changes for 4.4 (v2)

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Linus,

The following changes since commit a3eaa8649e4c6a6afdafaa04b9114fb230617bb1:

  KVM: VMX: Fix commit which broke PML (2015-11-05 11:34:11 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus

for you to fetch changes up to 370289756beccdc2a6ef9c7998fe67a7ca68bfc2:

  Merge branch 'kvm-ppc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD (2015-11-12 10:07:07 +0100)

I had previously sent this pull request (minus the PPC changes) on Nov 10th,
but forgot to include you explicitly in the recipients.  So you actually
never got the v1.

----------------------------------------------------------------

Four changes:

- x86: work around two nasty cases where a benign exception occurs while
another is being delivered.  The endless stream of exceptions causes an
infinite loop in the processor, which not even NMIs or SMIs can interrupt;
in the virt case, there is no possibility to exit to the host either.

- x86: support for Skylake per-guest TSC rate.  Long supported by AMD,
the patches mostly move things from there to common arch/x86/kvm/ code.

- generic: remove local_irq_save/restore from the guest entry and exit
paths when context tracking is enabled.  The patches are a few months
old, but we discussed them again at kernel summit.  Andy will pick up
from here and, in 4.5, try to remove it from the user entry/exit paths.

- PPC: Two bug fixes, see merge commit 370289756becc for details.

----------------------------------------------------------------
Eric Northup (1):
      KVM: x86: work around infinite loop in microcode when #AC is delivered

Haozhong Zhang (12):
      KVM: x86: Collect information for setting TSC scaling ratio
      KVM: x86: Add a common TSC scaling ratio field in kvm_vcpu_arch
      KVM: x86: Add a common TSC scaling function
      KVM: x86: Replace call-back set_tsc_khz() with a common function
      KVM: x86: Replace call-back compute_tsc_offset() with a common function
      KVM: x86: Move TSC scaling logic out of call-back adjust_tsc_offset()
      KVM: x86: Move TSC scaling logic out of call-back read_l1_tsc()
      KVM: x86: Use the correct vcpu's TSC rate to compute time scale
      KVM: VMX: Enable and initialize VMX TSC scaling
      KVM: VMX: Setup TSC scaling ratio when a vcpu is loaded
      KVM: VMX: Use a scaled host TSC for guest readings of MSR_IA32_TSC
      KVM: VMX: Dump TSC multiplier in dump_vmcs()

Paolo Bonzini (7):
      KVM: x86: merge handle_mmio_page_fault and handle_mmio_page_fault_common
      KVM: x86: declare a few variables as __read_mostly
      context_tracking: remove duplicate enabled check
      context_tracking: avoid irq_save/irq_restore on guest entry and exit
      KVM: svm: unconditionally intercept #DB
      KVM: x86: rename update_db_bp_intercept to update_bp_intercept
      Merge branch 'kvm-ppc-fixes' of git://git.kernel.org/.../paulus/powerpc into HEAD

Paul Mackerras (2):
      KVM: PPC: Book3S HV: Synthesize segment fault if SLB lookup fails
      KVM: PPC: Book3S HV: Don't dynamically split core when already split

 arch/powerpc/kvm/book3s_hv.c            |   2 +-
 arch/powerpc/kvm/book3s_hv_rmhandlers.S |  20 ++--
 arch/x86/include/asm/kvm_host.h         |  27 ++----
 arch/x86/include/asm/vmx.h              |   3 +
 arch/x86/include/uapi/asm/svm.h         |   1 +
 arch/x86/kvm/lapic.c                    |   4 +-
 arch/x86/kvm/mmu.c                      |  20 +---
 arch/x86/kvm/mmu.h                      |   6 +-
 arch/x86/kvm/paging_tmpl.h              |   3 +-
 arch/x86/kvm/svm.c                      | 140 +++++-----------------------
 arch/x86/kvm/vmx.c                      |  71 +++++++-------
 arch/x86/kvm/x86.c                      | 159 +++++++++++++++++++++++++++-----
 include/linux/context_tracking.h        |  12 ++-
 include/linux/kvm_host.h                |   1 +
 include/linux/math64.h                  |  80 ++++++++++++++++
 kernel/context_tracking.c               |  80 ++++++++--------
 16 files changed, 365 insertions(+), 264 deletions(-)
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