arm64: Add AMPERE1 to the Spectre-BHB affected list
[ Upstream commit 0e5d5ae8 ] Per AmpereOne erratum AC03_CPU_12, "Branch history may allow control of speculative execution across software contexts," the AMPERE1 core needs the bhb clearing loop to mitigate Spectre-BHB, with a loop iteration count of 11. Signed-off-by:D Scott Phillips <scott@os.amperecomputing.com> Link: https://lore.kernel.org/r/20221011022140.432370-1-scott@os.amperecomputing.com Reviewed-by:
James Morse <james.morse@arm.com> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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5397ea6a
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