Re: [PATCH v2] powerpc/32s: fix suspend/resume when IBATs 4-7 are used

[Michael Ellerman]

On Mon, 2019-06-17 at 21:42:14 UTC, Christophe Leroy wrote:
> Previously, only IBAT1 and IBAT2 were used to map kernel linear mem.
> Since commit 63b2bc619565 ("powerpc/mm/32s: Use BATs for
> STRICT_KERNEL_RWX"), we may have all 8 BATs used for mapping
> kernel text. But the suspend/restore functions only save/restore
> BATs 0 to 3, and clears BATs 4 to 7.
> 
> Make suspend and restore functions respectively save and reload
> the 8 BATs on CPUs having MMU_FTR_USE_HIGH_BATS feature.
> 
> Reported-by: Andreas Schwab <schwab@xxxxxxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/6ecb78ef56e08d2119d337ae23cb951a640dc52d

cheers