[GIT PULL] Please pull my kvm-ppc-next branch

[Paul Mackerras <paulus@ozlabs.org>]

Paolo,

Please do a pull from my kvm-ppc-next branch to get a PPC KVM update
for 4.10.  This includes some changes to arch/powerpc which Michael
Ellerman put into a topic branch in his powerpc tree (topic/ppc-kvm)
which I have pulled into my kvm-ppc-next branch and which Michael will
pull into his next branch.

The changes this time are:

* Support for KVM guests on POWER9 using the hashed page table MMU.
* Updates and improvements to the halt-polling support on PPC, from
  Suraj Jitindar Singh.
* An optimization to speed up emulated MMIO, from Yongji Xie.
* Various other minor cleanups.

Suraj's patch set includes some changes to core KVM code which were
posted back in October and didn't attract much comment, so I put them
in.  They add some documentation for halt polling and export the
module parameters used to control halt polling.

Full disclosure: after I had pushed out some of the patches for POWER9
support, I discovered that they broke compilation with some uncommon
configurations (those with HV KVM enabled but in-kernel XICS interrupt
controller emulation disabled, or with SMP disabled).  Since my
kvm-ppc-next branch is a non-rebasing branch, I pushed a patch on top
to fix the breakage.  So bisection is broken over a span of about 6
commits for these unusual configurations.  If you want me to rebase my
kvm-ppc-next branch to avoid the breakage, let me know and I will do
that.

Thanks,
Paul.

The following changes since commit 813ae37e6aed72cc457094b6066aa38efd66c9e9:

  Merge branch 'x86/cpufeature' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into kvm/next (2016-11-16 22:07:36 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc.git kvm-ppc-next

for you to fetch changes up to 6ccad8cea5bcb0660f56677a5fdc52265f8ddf76:

  KVM: Add halt polling documentation (2016-11-28 11:48:47 +1100)

----------------------------------------------------------------
Daniel Axtens (2):
      KVM: PPC: Book3S HV: Fix sparse static warning
      KVM: PPC: Book3S HV: sparse: prototypes for functions called from assembler

David Gibson (2):
      KVM: PPC: Move KVM_PPC_PVINFO_FLAGS_EV_IDLE definition next to its structure
      KVM: PPC: Correctly report KVM_CAP_PPC_ALLOC_HTAB

Geliang Tang (1):
      KVM: PPC: Book3S HV: Drop duplicate header asm/iommu.h

Michael Ellerman (1):
      powerpc/reg: Add definition for LPCR_PECE_HVEE

Michael Neuling (1):
      powerpc/powernv: Define and set POWER9 HFSCR doorbell bit

Paul Mackerras (18):
      powerpc/64: Simplify adaptation to new ISA v3.00 HPTE format
      KVM: PPC: Book3S HV: Save/restore XER in checkpointed register state
      KVM: PPC: Book3S HV: Don't lose hardware R/C bit updates in H_PROTECT
      powerpc/64: Add some more SPRs and SPR bits for POWER9
      powerpc/64: Provide functions for accessing POWER9 partition table
      powerpc/powernv: Define real-mode versions of OPAL XICS accessors
      Merge remote-tracking branch 'remotes/powerpc/topic/ppc-kvm' into kvm-ppc-next
      KVM: PPC: Book3S HV: Adapt to new HPTE format on POWER9
      KVM: PPC: Book3S HV: Set partition table rather than SDR1 on POWER9
      KVM: PPC: Book3S HV: Adjust host/guest context switch for POWER9
      KVM: PPC: Book3S HV: Add new POWER9 guest-accessible SPRs
      KVM: PPC: Book3S HV: Adapt TLB invalidations to work on POWER9
      KVM: PPC: Book3S HV: Use msgsnd for IPIs to other cores on POWER9
      KVM: PPC: Book3S HV: Use OPAL XICS emulation on POWER9
      KVM: PPC: Book3S HV: Use stop instruction rather than nap on POWER9
      KVM: PPC: Book3S HV: Enable hypervisor virtualization interrupts while in guest
      KVM: PPC: Book3S HV: Treat POWER9 CPU threads as independent subcores
      KVM: PPC: Book3S HV: Fix compilation with unusual configurations

Suraj Jitindar Singh (8):
      powerpc/64: Define new ISA v3.00 logical PVR value and PCR register value
      KVM: PPC: Book3S HV: Update kvmppc_set_arch_compat() for ISA v3.00
      KVM: Export kvm module parameter variables
      KVM: PPC: Book3S HV: Use generic kvm module parameters
      KVM: PPC: Book3S HV: Add check for module parameter halt_poll_ns
      KVM: PPC: Decrease the powerpc default halt poll max value
      KVM: PPC: Book3S HV: Comment style and print format fixups
      KVM: Add halt polling documentation

Wei Yongjun (1):
      KVM: PPC: Book3S HV: Use list_move_tail instead of list_del/list_add_tail

Yongji Xie (2):
      KVM: PPC: Book3S HV: Clear the key field of HPTE when the page is paged out
      KVM: PPC: Book3S HV: Add a per vcpu cache for recently page faulted MMIO entries

 Documentation/virtual/kvm/00-INDEX             |   2 +
 Documentation/virtual/kvm/api.txt              |   3 +
 Documentation/virtual/kvm/halt-polling.txt     | 127 +++++++++++++
 arch/powerpc/include/asm/asm-prototypes.h      |  44 +++++
 arch/powerpc/include/asm/book3s/64/mmu-hash.h  |  47 ++++-
 arch/powerpc/include/asm/kvm_asm.h             |   1 +
 arch/powerpc/include/asm/kvm_host.h            |  27 ++-
 arch/powerpc/include/asm/kvm_ppc.h             |   7 +-
 arch/powerpc/include/asm/mmu.h                 |   5 +
 arch/powerpc/include/asm/opal.h                |   3 +
 arch/powerpc/include/asm/reg.h                 |  15 ++
 arch/powerpc/include/uapi/asm/kvm.h            |   5 +
 arch/powerpc/kernel/asm-offsets.c              |   4 +
 arch/powerpc/kernel/cpu_setup_power.S          |   2 +-
 arch/powerpc/kvm/book3s_64_mmu_hv.c            |  63 ++++--
 arch/powerpc/kvm/book3s_64_vio_hv.c            |   2 +-
 arch/powerpc/kvm/book3s_hv.c                   | 254 ++++++++++++++++++-------
 arch/powerpc/kvm/book3s_hv_builtin.c           |  73 +++++--
 arch/powerpc/kvm/book3s_hv_ras.c               |   1 +
 arch/powerpc/kvm/book3s_hv_rm_mmu.c            | 224 +++++++++++++++++-----
 arch/powerpc/kvm/book3s_hv_rm_xics.c           |  24 ++-
 arch/powerpc/kvm/book3s_hv_rmhandlers.S        | 140 ++++++++++----
 arch/powerpc/kvm/powerpc.c                     |  16 +-
 arch/powerpc/kvm/trace_hv.h                    |   2 +-
 arch/powerpc/mm/hash_native_64.c               |  30 ++-
 arch/powerpc/mm/hash_utils_64.c                |  28 +--
 arch/powerpc/mm/pgtable-radix.c                |  18 +-
 arch/powerpc/mm/pgtable_64.c                   |  34 ++++
 arch/powerpc/platforms/powernv/opal-wrappers.S |   3 +
 arch/powerpc/platforms/powernv/opal.c          |   2 +
 arch/powerpc/platforms/ps3/htab.c              |   2 +-
 arch/powerpc/platforms/pseries/lpar.c          |   2 +-
 include/linux/kvm_host.h                       |   4 +
 include/uapi/linux/kvm.h                       |   5 +-
 virt/kvm/kvm_main.c                            |   9 +-
 35 files changed, 977 insertions(+), 251 deletions(-)
 create mode 100644 Documentation/virtual/kvm/halt-polling.txt