arm/arm64: KVM: Allow handle_hva_to_gpa to return a value
So far, handle_hva_to_gpa was never required to return a value. As we prepare to age pages at Stage-2, we need to be able to return a value from the iterator (kvm_test_age_hva). Adapt the code to handle this situation. No semantic change. Acked-by: NChristoffer Dall <christoffer.dall@linaro.org> Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com> Signed-off-by: NChristoffer Dall <christoffer.dall@linaro.org>
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