KVM: arm64: Add a MMIO flag for pKVM page state

Introduce a new pKVM meta-state for mappings with the MMIO guard
annotation.

Using a bit for that meta-state allow to distinguish between unmapped
and unmapped+annotation states while making it easy to write a filter
for the guest mem transition walker.

Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
2 files changed