KVM: arm64: Add fast path to handle permission relaxation during dirty logging

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To reduce MMU lock contention during dirty logging, all permission
relaxation operations would be performed under read lock.

Signed-off-by: Jing Zhang <jingzhangos@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220118015703.3630552-3-jingzhangos@google.com

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Jing Zhang 2022-01-18 01:57:02 +00:00 • committed by Marc Zyngier

parent fcc5bf8963

commit f783ef1c0e

1 changed files with 15 additions and 2 deletions

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arch/arm64/kvm/mmu.c

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