arm64: KVM: Make ICC_SRE_EL1 access return the configured SRE value
When we trap ICC_SRE_EL1, we handle it as RAZ/WI. It would be more correct to actual make it RO, and return the configured value when read. Reviewed-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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