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b259d137e9
Alex pointed out that we don't pass a level hint to the TLBI instruction when handling a stage-2 permission fault, even though the walker does at some point have the level information in its hands. Rework stage2_update_leaf_attrs() so that it can optionally return the level of the updated pte to its caller, which can in turn be used to provide the correct TLBI level hint. Reported-by: Alexandru Elisei <alexandru.elisei@arm.com> Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Cc: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/595cc73e-636e-8b3a-f93a-b4e9fb218db8@arm.com Link: https://lore.kernel.org/r/20200930131801.16889-1-will@kernel.org |
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