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authorOliver Upton <oliver.upton@linux.dev>2023-02-14 01:33:10 +0300
committerOliver Upton <oliver.upton@linux.dev>2023-02-14 01:33:10 +0300
commit52b603628a2c06be38648aa025daa81e4355a7fc (patch)
treecdaf10e6f49c254f45be23e0b7888c114cad1972 /arch/arm64/kvm/vgic-sys-reg-v3.c
parente8789ab7047a824fa415948d511634fea0c3aea3 (diff)
parent1dfc3e905089a0bcada268fb5691a605655e0319 (diff)
downloadlinux-52b603628a2c06be38648aa025daa81e4355a7fc.tar.xz
Merge branch kvm-arm64/parallel-access-faults into kvmarm/next
* 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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