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Marc Zyngier authored
When checking for ID_AA64SMFR0_EL1.SMEver, __check_override assumes that the ID_AA64SMFR0_EL1 value is in x1, and the intent of the code is to reuse value read a few lines above. However, as the comment says at the beginning of the macro, x1 will be clobbered, and the checks always fails. The easiest fix is just to reload the id register before checking it. Fixes: f122576f ("arm64/sme: Enable host kernel to access ZT0") Signed-off-by:
Marc Zyngier <maz@kernel.org> Reviewed-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
9442d05b