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authorCarsten Otte <cotte@de.ibm.com>2011-12-27 11:27:11 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-12-27 11:27:10 +0100
commitf32269a0d09113b12b68f08dbc5361195176e2dc (patch)
tree989315d161294fd975000d12d3c5ea3834f8dc2e /arch/s390/mm
parent400d829153aea9487654f588d4d06e8beb8b251f (diff)
downloadlinux-linaro-stable-f32269a0d09113b12b68f08dbc5361195176e2dc.tar.gz
[S390] disable MACHINE_IS_VM check for pfault
This patch disables the check for MACHINE_IS_VM when initializing the pfault infrastructure. The code checks for successful completion of diag 258 anyway, thus it's safe to try initialization on LPAR anyway. This is needed to use pfault on kvm Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm')
-rw-r--r--arch/s390/mm/fault.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index a9a301866b3c..a9d3583922ec 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -509,7 +509,7 @@ int pfault_init(void)
.reserved = __PF_RES_FIELD };
int rc;
- if (!MACHINE_IS_VM || pfault_disable)
+ if (pfault_disable)
return -1;
asm volatile(
" diag %1,%0,0x258\n"
@@ -530,7 +530,7 @@ void pfault_fini(void)
.refversn = 2,
};
- if (!MACHINE_IS_VM || pfault_disable)
+ if (pfault_disable)
return;
asm volatile(
" diag %0,0,0x258\n"
@@ -643,8 +643,6 @@ static int __init pfault_irq_init(void)
{
int rc;
- if (!MACHINE_IS_VM)
- return 0;
rc = register_external_interrupt(0x2603, pfault_interrupt);
if (rc)
goto out_extint;