[kvm-unit-tests PATCH 8/8] lib: s390x: uv: Add rc 0x100 query error handling

Janosch Frank
2021-08-13T07:37:44Z

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>
---
lib/s390x/uv.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

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;
}
--
2.30.2