tree fb6f241d24eaee60ad33127a318521dccae02661
parent 4205a89b8060141ac0216a507b9f70728f056a10
author Marc Zyngier <marc.zyngier@arm.com> 1518695234 +0000
committer Marc Zyngier <marc.zyngier@arm.com> 1521464806 +0000

arm64: KVM: Allow mapping of vectors outside of the RAM region

We're now ready to map our vectors in weird and wonderful locations.
On enabling ARM64_HARDEN_EL2_VECTORS, a vector slot gets allocated
if this hasn't been already done via ARM64_HARDEN_BRANCH_PREDICTOR
and gets mapped outside of the normal RAM region, next to the
idmap.

That way, being able to obtain VBAR_EL2 doesn't reveal the mapping
of the rest of the hypervisor code.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>