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kpti is an optional feature, for systems not using kpti a set of vectors for the spectre-bhb mitigations is needed. Add another set of vectors, __bp_harden_el1_vectors, that will be used if a mitigation is needed and kpti is not in use. The EL1 ventries are repeated verbatim as there is no additional work needed for entry from EL1. Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: James Morse <james.morse@arm.com>