Commit fed626db authored by Heiko Carstens's avatar Heiko Carstens Committed by Vasily Gorbik
Browse files

s390/bp: add missing BPENTER to program check handler 



When leaving interpretive execution because of a program check BPENTER
should be called like it is done on interrupt exit as well.

Acked-by: default avatarAlexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: default avatarSven Schnelle <svens@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Signed-off-by: default avatarVasily Gorbik <gor@linux.ibm.com>
parent eeac8ede

arch/s390/kernel/entry.S

+1 −0
Original line number Diff line number Diff line
@@ -355,6 +355,7 @@ ENTRY(pgm_check_handler) 
#if IS_ENABLED(CONFIG_KVM)

	# cleanup critical section for program checks in __sie64a

	OUTSIDE	%r9,.Lsie_gmap,.Lsie_done,1f

	BPENTER	__SF_SIE_FLAGS(%r15),(_TIF_ISOLATE_BP|_TIF_ISOLATE_BP_GUEST)

	SIEEXIT

	lghi	%r10,_PIF_GUEST_FAULT

#endif