diff mbox series

[kvm-unit-tests,GIT,PULL,10/11] lib: s390x: uv: Add rc 0x100 query error handling

Message ID 20210816132054.60078-11-frankja@linux.ibm.com (mailing list archive)
State New, archived
Headers show
Series [kvm-unit-tests,GIT,PULL,01/11] s390x: Add SPDX and header comments for s390x/* and lib/s390x/* | expand

Commit Message

Janosch Frank Aug. 16, 2021, 1:20 p.m. UTC 
Let's not get bitten by an extension of the query struct and handle
the rc 0x100 error properly which does indicate that the UV has more
data for us.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
---
 lib/s390x/uv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/lib/s390x/uv.c b/lib/s390x/uv.c
index fd9de944..c5c69c47 100644
--- a/lib/s390x/uv.c
+++ b/lib/s390x/uv.c
@@ -49,6 +49,8 @@  int uv_setup(void)
 	if (!test_facility(158))
 		return 0;
 
-	assert(!uv_call(0, (u64)&uvcb_qui));
+	uv_call(0, (u64)&uvcb_qui);
+
+	assert(uvcb_qui.header.rc == 1 || uvcb_qui.header.rc == 0x100);
 	return 1;
 }