[kvm-unit-tests PATCH 2/2] s390x: diag10: Check page clear

[Janosch Frank <frankja@linux.ibm.com>]

We should get a new page after we discarded the page.
So let's check for that.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
---
 s390x/diag10.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/s390x/diag10.c b/s390x/diag10.c
index 00725f58..b68481ad 100644
--- a/s390x/diag10.c
+++ b/s390x/diag10.c
@@ -94,6 +94,16 @@ static void test_priv(void)
 	report_prefix_pop();
 }
 
+static void test_content(void)
+{
+	report_prefix_push("content");
+	memset((void *)page0, 0x42, PAGE_SIZE);
+	memset((void *)page1, 0, PAGE_SIZE);
+	diag10(page0, page0);
+	report(!memcmp((void *)page0, (void *)page1, PAGE_SIZE), "Page cleared");
+	report_prefix_pop();
+}
+
 int main(void)
 {
 	report_prefix_push("diag10");
@@ -110,6 +120,7 @@ int main(void)
 	test_prefix();
 	test_params();
 	test_priv();
+	test_content();
 
 out:
 	report_prefix_pop();
-- 
2.48.1