s390: scrub registers on kernel entry and KVM exit
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Tue, 16 Jan 2018 12:27:30 +0000 (13:27 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 5 Feb 2018 06:34:54 +0000 (07:34 +0100)
commit7041d28115e91f2144f811ffe8a195c696b1e1d0
tree7456a46a95c968045e3ed8a1c8e5a53d9f086846
parent364e3f90f8e9198681ccccad4bea2f681a8ffba2
s390: scrub registers on kernel entry and KVM exit

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>
arch/s390/kernel/entry.S