arm64: KVM: Allow the main HYP code to use the init hyp stub implementation
We now have a full hyp-stub implementation in the KVM init code, but the main KVM code only supports HVC_GET_VECTORS, which is not enough. Instead of reinventing the wheel, let's reuse the init implementation by branching to the idmap page when called with a hyp-stub hypercall. Acked-by: NCatalin Marinas <catalin.marinas@arm.com> Reviewed-by: NJames Morse <james.morse@arm.com> Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com> Signed-off-by: NChristoffer Dall <cdall@linaro.org>
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