Michael Ellerman 8e00833d69 powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC ...

commit 179ab1cbf8 upstream.

Add a config symbol to encode which platforms support the
barrier_nospec speculation barrier. Currently this is just Book3S 64
but we will add Book3E in a future patch.

Signed-off-by: Diana Craciun <diana.craciun@nxp.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-05-15 12:22:07 +09:00

2.8 KiB

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