diff options
| -rw-r--r-- | sys/arch/powerpc64/powerpc64/pmap.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/sys/arch/powerpc64/powerpc64/pmap.c b/sys/arch/powerpc64/powerpc64/pmap.c index a0b3f18e052..e929306e33e 100644 --- a/sys/arch/powerpc64/powerpc64/pmap.c +++ b/sys/arch/powerpc64/powerpc64/pmap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pmap.c,v 1.38 2020/07/25 10:11:38 kettenis Exp $ */ +/* $OpenBSD: pmap.c,v 1.39 2020/07/30 12:52:54 kettenis Exp $ */ /* * Copyright (c) 2015 Martin Pieuchot @@ -455,10 +455,12 @@ pmap_unset_user_slb(void) curpcb->pcb_userva = 0; - isync(); - slbie(ci->ci_kernel_slb[31].slb_slbe); - isync(); - + if (ci->ci_kernel_slb[31].slb_slbe != 0) { + isync(); + slbie(ci->ci_kernel_slb[31].slb_slbe); + isync(); + } + ci->ci_kernel_slb[31].slb_slbe = 0; ci->ci_kernel_slb[31].slb_slbv = 0; } |