KVM: arm64: Make table->block changes parallel-aware

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stage2_map_walker_try_leaf() and friends now handle stage-2 PTEs
generically, and perform the correct flush when a table PTE is removed.
Additionally, they've been made parallel-aware, using an atomic break
to take ownership of the PTE.

Stop clearing the PTE in the pre-order callback and instead let
stage2_map_walker_try_leaf() deal with it.

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221107220006.1895572-1-oliver.upton@linux.dev

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Oliver Upton 2022-11-07 22:00:06 +00:00 • committed by Marc Zyngier

parent 946fbfdf33

commit af87fc03cf

1 changed files with 3 additions and 12 deletions

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arch/arm64/kvm/hyp/pgtable.c

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