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[PULL,08/10] s390x/css: fix control flags during csch

Message ID 1453979351-13089-9-git-send-email-cornelia.huck@de.ibm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Cornelia Huck Jan. 28, 2016, 11:09 a.m. UTC 
From: Halil Pasic <pasic@linux.vnet.ibm.com>

From the beginning, css support contained an error in csch handling:
instead of setting the clear bit in the function control bits twice, we
need to set the clear pending bit in the activity control bits. Let's
fix this.

Cc: qemu-stable@nongnu.org
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
 hw/s390x/css.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/hw/s390x/css.c b/hw/s390x/css.c
index 533357a..e83bf60 100644
--- a/hw/s390x/css.c
+++ b/hw/s390x/css.c
@@ -702,7 +702,7 @@  int css_do_csch(SubchDev *sch)
 
     /* Trigger the clear function. */
     s->ctrl &= ~(SCSW_CTRL_MASK_FCTL | SCSW_CTRL_MASK_ACTL);
-    s->ctrl |= SCSW_FCTL_CLEAR_FUNC | SCSW_FCTL_CLEAR_FUNC;
+    s->ctrl |= SCSW_FCTL_CLEAR_FUNC | SCSW_ACTL_CLEAR_PEND;
 
     do_subchannel_work(sch, NULL);
     ret = 0;