| Message ID | 20210621085003.904767-1-bharata@linux.ibm.com |
|---|---|
| Headers | show |
| Series | Support for H_RPT_INVALIDATE in PowerPC KVM | expand |
On Mon, 21 Jun 2021 14:19:57 +0530, Bharata B Rao wrote: > 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 v8: > ------------- > - Used tlb_single_page_flush_ceiling in the process-scoped range > flush routine to switch to full PID invalation if > the number of pages is above the threshold > - Moved iterating over page sizes into the actual routine that > handles the eventual flushing thereby limiting the page size > iteration only to range based flushing > - Converted #if 0 section into a comment section to avoid > checkpatch from complaining. > - Used a threshold in the partition-scoped range flushing > to switch to full LPID invalidation > > [...] Applied to powerpc/topic/ppc-kvm. [1/6] KVM: PPC: Book3S HV: Fix comments of H_RPT_INVALIDATE arguments https://git.kernel.org/powerpc/c/f09216a190a4c2f62e1725f9d92e7c122b4ee423 [2/6] powerpc/book3s64/radix: Add H_RPT_INVALIDATE pgsize encodings to mmu_psize_def https://git.kernel.org/powerpc/c/d6265cb33b710789cbc390316eba50a883d6dcc8 [3/6] KVM: PPC: Book3S HV: Add support for H_RPT_INVALIDATE https://git.kernel.org/powerpc/c/f0c6fbbb90504fb7e9dbf0865463d3c2b4de49e5 [4/6] KVM: PPC: Book3S HV: Nested support in H_RPT_INVALIDATE https://git.kernel.org/powerpc/c/53324b51c5eee22d420a2df68b1820d929fa90f3 [5/6] KVM: PPC: Book3S HV: Add KVM_CAP_PPC_RPT_INVALIDATE capability https://git.kernel.org/powerpc/c/b87cc116c7e1bc62a84d8c46acd401db179edb11 [6/6] KVM: PPC: Book3S HV: Use H_RPT_INVALIDATE in nested KVM https://git.kernel.org/powerpc/c/81468083f3c76a08183813e3af63a7c3cea3f537 cheers
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 v8: ------------- - Used tlb_single_page_flush_ceiling in the process-scoped range flush routine to switch to full PID invalation if the number of pages is above the threshold - Moved iterating over page sizes into the actual routine that handles the eventual flushing thereby limiting the page size iteration only to range based flushing - Converted #if 0 section into a comment section to avoid checkpatch from complaining. - Used a threshold in the partition-scoped range flushing to switch to full LPID invalidation v7: https://lore.kernel.org/linuxppc-dev/20210505154642.178702-1-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 | 9 + arch/powerpc/kvm/book3s_64_mmu_radix.c | 27 ++- arch/powerpc/kvm/book3s_hv.c | 89 +++++++++ arch/powerpc/kvm/book3s_hv_nested.c | 129 ++++++++++++- arch/powerpc/kvm/powerpc.c | 3 + arch/powerpc/mm/book3s64/radix_pgtable.c | 5 + arch/powerpc/mm/book3s64/radix_tlb.c | 176 +++++++++++++++++- include/uapi/linux/kvm.h | 1 + 13 files changed, 456 insertions(+), 13 deletions(-)