On Mon, 3 May 2021 14:12:44 +0200
David Hildenbrand <david@xxxxxxxxxx> wrote:
> The PoP documents:
> 134: The vector packed decimal facility is installed in the
> z/Architecture architectural mode. When bit 134 is
> one, bit 129 is also one.
> 135: The vector enhancements facility 1 is installed in
> the z/Architecture architectural mode. When bit 135
> is one, bit 129 is also one.
>
> Looks like we confuse the vector enhancements facility 1 ("EXT") with the
> Vector packed decimal facility ("BCD"). Let's fix the facility checks.
>
> Detected while working on QEMU/tcg z14 support and only unlocking
> the vector enhancements facility 1, but not the vector packed decimal
> facility.
>
> Fixes: 2583b848cad0 ("s390: report new vector facilities")
> Cc: Heiko Carstens <hca@xxxxxxxxxxxxx>
> Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx>
> Cc: Christian Borntraeger <borntraeger@xxxxxxxxxx>
> Cc: Sven Schnelle <svens@xxxxxxxxxxxxx>
> Cc: Alexander Egorenkov <egorenar@xxxxxxxxxxxxx>
> Cc: Niklas Schnelle <schnelle@xxxxxxxxxxxxx>
> Cc: Janosch Frank <frankja@xxxxxxxxxxxxx>
> Cc: linux-s390@xxxxxxxxxxxxxxx
> Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
> ---
> arch/s390/kernel/setup.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
