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
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