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(parent: 4d9c2b6) | patch
s390: scrub registers on kernel entry and KVM exit
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Fri, 27 Apr 2018 05:36:42 +0000 (07:36 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 29 Apr 2018 09:31:58 +0000 (11:31 +0200)
commitc225febe980f6f112fc0bfce58148d8b390d4cbf
tree61ce2781063e781a0d81108169b0820bd0792d26tree | snapshot (tar.gz zip)
parent4d9c2b611ff27fa1556414adf104418cba230daacommit | diff
s390: scrub registers on kernel entry and KVM exit

[ Upstream commit 7041d28115e91f2144f811ffe8a195c696b1e1d0 ]

Clear all user space registers on entry to the kernel and all KVM guest
registers on KVM guest exit if the register does not contain either a
parameter or a result value.

Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/s390/kernel/entry.S diff | blob | blame | history