arm64: Add an override for ID_AA64SMFR0_EL1.FA64

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Add a specific override for ID_AA64SMFR0_EL1.FA64, which
disables the full A64 streaming SVE mode.

Note that no alias is provided for this, as this is already
covered by arm64.nosme, and is only added as a debugging
facility.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220630160500.1536744-10-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>

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Marc Zyngier 2022-06-30 17:05:00 +01:00 • committed by Will Deacon

parent 504ee23611

commit 18c9aa4907

2 changed files with 19 additions and 7 deletions

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15

arch/arm64/kernel/hyp-stub.S

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11

arch/arm64/kernel/idreg-override.c

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