[kvm-unit-tests PATCH 5/6] s390x: uv-host: Add a set secure config parameters test function

Janosch Frank
2022-05-13T09:51:56Z

Time for more tests.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
---
s390x/uv-host.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)

diff --git a/s390x/uv-host.c b/s390x/uv-host.c
index 153a94e1..20d805b8 100644
--- a/s390x/uv-host.c
+++ b/s390x/uv-host.c
@@ -229,6 +229,52 @@ static void test_cpu_destroy(void)
report_prefix_pop();
}

+static void test_set_se_header(void)
+{
+ struct uv_cb_ssc uvcb = {
+ .header.cmd = UVC_CMD_SET_SEC_CONF_PARAMS,
+ .header.len = sizeof(uvcb),
+ .guest_handle = uvcb_cgc.guest_handle,
+ .sec_header_origin = 0,
+ .sec_header_len = 0x1000,
+ };
+ void *pages = alloc_pages(1);
+ void *inv;
+ int rc;
+
+ report_prefix_push("sscp");
+
+ uvcb.header.len -= 8;
+ rc = uv_call(0, (uint64_t)&uvcb);
+ report(rc == 1 && uvcb.header.rc == UVC_RC_INV_LEN,
+ "hdr invalid length");
+ uvcb.header.len += 8;
+
+ uvcb.guest_handle += 1;
+ rc = uv_call(0, (uint64_t)&uvcb);
+ report(rc == 1 && uvcb.header.rc == UVC_RC_INV_GHANDLE, "invalid handle");
+ uvcb.guest_handle -= 1;
+
+ inv = pages + PAGE_SIZE;
+ uvcb.sec_header_origin = (uint64_t)inv;
+ protect_page(inv, PAGE_ENTRY_I);
+ rc = uv_call(0, (uint64_t)&uvcb);
+ report(rc == 1 && uvcb.header.rc == 0x103,
+ "se hdr access exception");
+
+ /*
+ * Shift the ptr so the first few DWORDs are accessible but
+ * the following are on an invalid page.
+ */
+ uvcb.sec_header_origin -= 0x20;
+ rc = uv_call(0, (uint64_t)&uvcb);
+ report(rc == 1 && uvcb.header.rc == 0x103,
+ "se hdr access exception crossing");
+ unprotect_page(inv, PAGE_ENTRY_I);
+
+ report_prefix_pop();
+}
+
static void test_cpu_create(void)
{
int rc;
@@ -669,6 +715,7 @@ int main(void)

test_config_create();
test_cpu_create();
+ test_set_se_header();
test_cpu_destroy();
test_config_destroy();
test_clear();
--
2.34.1