Re: [PATCH v1 03/16] powerpc/32: move LOAD_MSR_KERNEL() into head_32.h and use it

From: Benjamin Herrenschmidt
Date: Sun Feb 10 2019 - 20:03:11 EST


On Fri, 2019-02-08 at 12:52 +0000, Christophe Leroy wrote:
> /*
> + * MSR_KERNEL is > 0x8000 on 4xx/Book-E since it include MSR_CE.
> + */
> +.macro __LOAD_MSR_KERNEL r, x
> +.if \x >= 0x8000
> + lis \r, (\x)@h
> + ori \r, \r, (\x)@l
> +.else
> + li \r, (\x)
> +.endif
> +.endm
> +#define LOAD_MSR_KERNEL(r, x) __LOAD_MSR_KERNEL r, x
> +

You changed the limit from >= 0x10000 to >= 0x8000 without a
corresponding explanation as to why...

Ben.