Merge branch kvm-arm64/parallel-access-faults into kvmarm/next

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* kvm-arm64/parallel-access-faults:
  : Parallel stage-2 access fault handling
  :
  : The parallel faults changes that went in to 6.2 covered most stage-2
  : aborts, with the exception of stage-2 access faults. Building on top of
  : the new infrastructure, this series adds support for handling access
  : faults (i.e. updating the access flag) in parallel.
  :
  : This is expected to provide a performance uplift for cores that do not
  : implement FEAT_HAFDBS, such as those from the fruit company.
  KVM: arm64: Condition HW AF updates on config option
  KVM: arm64: Handle access faults behind the read lock
  KVM: arm64: Don't serialize if the access flag isn't set
  KVM: arm64: Return EAGAIN for invalid PTE in attr walker
  KVM: arm64: Ignore EAGAIN for walks outside of a fault
  KVM: arm64: Use KVM's pte type/helpers in handle_access_fault()

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

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This commit is contained in:

Oliver Upton 2023-02-13 22:33:10 +00:00

parent e8789ab704 1dfc3e9050

commit 52b603628a

3 changed files with 54 additions and 15 deletions

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8

arch/arm64/include/asm/kvm_pgtable.h

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43

arch/arm64/kvm/hyp/pgtable.c

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18

arch/arm64/kvm/mmu.c

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