KVM: arm64: Add support for relaxing stage-2 perms in generic page-table code

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Add support for relaxing the permissions of a stage-2 mapping (i.e.
adding additional permissions) to the generic page-table code.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20200911132529.19844-17-will@kernel.org

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Will Deacon 2020-09-11 14:25:24 +01:00 • committed by Marc Zyngier

parent 8d5207bef6

commit adcd4e2329

2 changed files with 39 additions and 0 deletions

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19

arch/arm64/include/asm/kvm_pgtable.h

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arch/arm64/kvm/hyp/pgtable.c

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