[PATCH] Documentation: Add powerpc options for spec_store_bypass_disable

[Thomas Gleixner]

On Tue, 10 Jul 2018, Michael Ellerman wrote:

> Document the support for spec_store_bypass_disable that was added for
> powerpc in commit a048a07d7f45 ("powerpc/64s: Add support for a store
> forwarding barrier at kernel entry/exit").
> 
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
> ---
>  Documentation/admin-guide/kernel-parameters.txt | 16 +++++++++++++---
>  1 file changed, 13 insertions(+), 3 deletions(-)
> 
> I tried documenting the differences between the PPC options and X86 ones in one
> section, but it got quite messy, so I went with this instead. Happy to take
> advice on how better to structure it if anyone has opinions.

Looks good to me.

Acked-by: Thomas Gleixner <tglx at linutronix.de>