[kvm-unit-tests PATCH 2/4] s390x: lib: Add QUI getter

[Steffen Eiden <seiden@linux.ibm.com>]

Some tests need the information provided by the QUI UVC and lib/s390x/uv.c
already has cached the qui result. Let's add a function to avoid
unnecessary  QUI UVCs.

Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
---
 lib/s390x/uv.c | 10 +++++++++-
 lib/s390x/uv.h |  1 +
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/lib/s390x/uv.c b/lib/s390x/uv.c
index 6fe11dff..5625a1ee 100644
--- a/lib/s390x/uv.c
+++ b/lib/s390x/uv.c
@@ -2,7 +2,7 @@
 /*
  * Ultravisor related functionality
  *
- * Copyright 2020 IBM Corp.
+ * Copyright 2020, 2022 IBM Corp.
  *
  * Authors:
  *    Janosch Frank <frankja@linux.ibm.com>
@@ -47,6 +47,14 @@ bool uv_query_test_call(unsigned int nr)
 	return test_bit_inv(nr, uvcb_qui.inst_calls_list);
 }
 
+const struct uv_cb_qui *uv_get_info(void)
+{
+	/* Query needs to be called first */
+	assert(uvcb_qui.header.rc);
+
+	return &uvcb_qui;
+}
+
 int uv_setup(void)
 {
 	if (!test_facility(158))
diff --git a/lib/s390x/uv.h b/lib/s390x/uv.h
index 8175d9c6..e9935fd2 100644
--- a/lib/s390x/uv.h
+++ b/lib/s390x/uv.h
@@ -8,6 +8,7 @@
 bool uv_os_is_guest(void);
 bool uv_os_is_host(void);
 bool uv_query_test_call(unsigned int nr);
+const struct uv_cb_qui *uv_get_info(void);
 void uv_init(void);
 int uv_setup(void);
 void uv_create_guest(struct vm *vm);
-- 
2.30.2