KVM: arm64: Handle FFA_MEM_RECLAIM calls from the host

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Intecept FFA_MEM_RECLAIM calls from the host and transition the host
stage-2 page-table entries from the SHARED_OWNED state back to the OWNED
state once EL3 has confirmed that the secure mapping has been reclaimed.

Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20230523101828.7328-8-will@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

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Will Deacon 2023-05-23 11:18:24 +01:00 • committed by Oliver Upton

parent 4360900017

commit 0e3bcb49c1

1 changed files with 79 additions and 0 deletions

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arch/arm64/kvm/hyp/nvhe/ffa.c

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