[PATCH 3/3] powerpc/microwatt: CPU doesn't (yet) have speculation bugs

[Christophe Leroy]

Le 16/08/2021 à 10:24, Joel Stanley a écrit :
> Signed-off-by: Joel Stanley <joel at jms.id.au>
> ---
>   arch/powerpc/Kconfig | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 663766fbf505..d5af6667c206 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -279,6 +279,7 @@ config PPC_BARRIER_NOSPEC
>   	bool
>   	default y
>   	depends on PPC_BOOK3S_64 || PPC_FSL_BOOK3E
> +	depends on !PPC_MICROWATT

Not sure it is a good idea to disable it completely when PPC_MICROWATT is selected. Don't we want to 
be able to build generic kernels that can run on any book3s/64 ?

Maybe you should change the default instead, something like:

	bool
	default y if !PPC_MICROWATT
	depends on PPC_BOOK3S_64 || PPC_FSL_BOOK3E

>   
>   config EARLY_PRINTK
>   	bool
>