s390/cpumf: Fix lpp detection
BugLink: http://bugs.launchpad.net/bugs/1555344 we have to check bit 40 of the facility list before issuing LPP and not bit 48. Otherwise a guest running on a system with "The decimal-floating-point zoned-conversion facility" and without the "The set-program-parameters facility" might crash on an lpp instruction. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: stable@vger.kernel.org # v4.4+ Fixes: e22cf8ca ("s390/cpumf: rework program parameter setting to detect guest samples") Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> (cherry picked from commit 7a76aa95) Signed-off-by: Stefan Bader <stefan.bader@canonical.com> Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Showing
Please register or sign in to comment