On Fri, 2019-02-15 at 10:20:20 UTC, Nicholas Piggin wrote:
> The slbfee. instruction must have bit 24 of RB clear, failure to do
> so can result in false negatives that result in incorrect assertions.
>
> This is not obvious from the ISA v3.0B document, which only says:
>
> The hardware ignores the contents of RB 36:38 40:63 -- p.1032
>
> This patch fixes the bug and also clears all other bits from PPC bit
> 36-63, which is good practice when dealing with reserved or ignored
> bits.
>
> Fixes: e15a4fea4d ("powerpc/64s/hash: Add some SLB debugging tests")
> Reported-by: Aneesh Kumar K.V <[email protected]>
> Tested-by: Aneesh Kumar K.V <[email protected]>
> Signed-off-by: Nicholas Piggin <[email protected]>
> Reviewed-by: Aneesh Kumar K.V <[email protected]>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/7104dccfd052fde51eecc9972dad9c40
cheers
