mbox series

[v5,0/3] Support for H_RPT_INVALIDATE in PowerPC KVM

Message ID 20210224082510.3962423-1-bharata@linux.ibm.com (mailing list archive)
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Series Support for H_RPT_INVALIDATE in PowerPC KVM | expand

Message

Bharata B Rao Feb. 24, 2021, 8:25 a.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 v5:
-------------
- Included the h_rpt_invalidate page size information within
  mmu_pszie_defs[] as per David Gibson's suggestion.
- Redid nested exit changes as per Paul Mackerras' suggestion.
- Folded the patch that added tlbie primitives into the
  hcall implementation patch.

v4: https://lore.kernel.org/linuxppc-dev/20210215063542.3642366-1-bharata@linux.ibm.com/T/#t

Bharata B Rao (3):
  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: 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/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                  |  90 +++++++++++
 arch/powerpc/kvm/book3s_hv_nested.c           |  89 ++++++++++-
 arch/powerpc/kvm/powerpc.c                    |   3 +
 arch/powerpc/mm/book3s64/radix_pgtable.c      |   5 +
 arch/powerpc/mm/book3s64/radix_tlb.c          | 147 +++++++++++++++++-
 include/uapi/linux/kvm.h                      |   1 +
 12 files changed, 388 insertions(+), 11 deletions(-)