arm64: KVM: Avoid marking pages as XN in Stage-2 if CTR_EL0.DIC is set
On systems where CTR_EL0.DIC is set, we don't need to perform icache invalidation to guarantee that we'll fetch the right instruction stream. This also means that taking a permission fault to invalidate the icache is an unnecessary overhead. On such systems, we can safely leave the page as being executable. Acked-by: NCatalin Marinas <catalin.marinas@arm.com> Acked-by: NMark Rutland <mark.rutland@arm.com> Acked-by: NChristoffer Dall <christoffer.dall@arm.com> Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
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