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[v7,0/6] Support for H_RPT_INVALIDATE in PowerPC KVM

Message ID 20210505154642.178702-1-bharata@linux.ibm.com
Headers show
Series Support for H_RPT_INVALIDATE in PowerPC KVM | expand

Message

Bharata B Rao May 5, 2021, 3:46 p.m. UTC 
This patchset adds support for the new hcall H_RPT_INVALIDATE
and replaces the nested tlb flush calls with this new hcall
if support for the same exists.

Changes in v7:
-------------
- Fixed a bug where LPID of nested guest was being fetched
  wrongly in the process scoped invalidation part of nested
  guest exit handler.
  (In kvmppc_nested_h_rpt_invalidate() of patch 4/6)
- Moved the movement of RIC_FLUSH_ definitions to appropriate
  patch.

v6: https://lore.kernel.org/linuxppc-dev/20210311083939.595568-1-bharata@linux.ibm.com/

Aneesh Kumar K.V (1):
  KVM: PPC: Book3S HV: Fix comments of H_RPT_INVALIDATE arguments

Bharata B Rao (5):
  powerpc/book3s64/radix: Add H_RPT_INVALIDATE pgsize encodings to
    mmu_psize_def
  KVM: PPC: Book3S HV: Add support for H_RPT_INVALIDATE
  KVM: PPC: Book3S HV: Nested support in H_RPT_INVALIDATE
  KVM: PPC: Book3S HV: Add KVM_CAP_PPC_RPT_INVALIDATE capability
  KVM: PPC: Book3S HV: Use H_RPT_INVALIDATE in nested KVM

 Documentation/virt/kvm/api.rst                |  18 +++
 arch/powerpc/include/asm/book3s/64/mmu.h      |   1 +
 .../include/asm/book3s/64/tlbflush-radix.h    |   4 +
 arch/powerpc/include/asm/hvcall.h             |   4 +-
 arch/powerpc/include/asm/kvm_book3s.h         |   3 +
 arch/powerpc/include/asm/mmu_context.h        |  11 ++
 arch/powerpc/kvm/book3s_64_mmu_radix.c        |  27 +++-
 arch/powerpc/kvm/book3s_hv.c                  | 106 ++++++++++++
 arch/powerpc/kvm/book3s_hv_nested.c           | 116 ++++++++++++-
 arch/powerpc/kvm/powerpc.c                    |   3 +
 arch/powerpc/mm/book3s64/radix_pgtable.c      |   5 +
 arch/powerpc/mm/book3s64/radix_tlb.c          | 152 +++++++++++++++++-
 include/uapi/linux/kvm.h                      |   1 +
 13 files changed, 438 insertions(+), 13 deletions(-)