This patch adds a new subtest, it hotplugs 29 * 8 = 232 virtio-blk
devices to guest, and try to hot-unplug them.
Note: the hot-unplug can't work without cooperation of guest OS.
Signed-off-by: Amos Kong <ak...@redhat.com>
---
tests/virtio-blk-test.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 68 insertions(+)
diff --git a/tests/virtio-blk-test.c b/tests/virtio-blk-test.c
index 0fdec01..7cb55cd 100644
--- a/tests/virtio-blk-test.c
+++ b/tests/virtio-blk-test.c
@@ -7,11 +7,78 @@
* See the COPYING file in the top-level directory.
*/
+#include <stdio.h>
#include <glib.h>
#include <string.h>
#include "libqtest.h"
#include "qemu/osdep.h"
+
+/* Start guest without net/block device, slots 3 to 0x1f are free */
+#define MIN_PCI_SLOT 3
+#define MAX_PCI_SLOT 0x1f
+#define MAX_PCI_FUNC 7
+
+static void test_blk_hotplug(void)
+{
+ QDict *response;
+ int i, j;
+ char drive_id[10];
+ char device_id[10];
+ char addr[10];
+
+ qtest_start("-net none");
+
+ for (i = MIN_PCI_SLOT; i <= MAX_PCI_SLOT; i++) {
+ for (j = MAX_PCI_FUNC; j >= 0; j--) {
+ sprintf(drive_id, "drv-%x.%x", i, j);
+ response = qmp("{ 'execute': 'blockdev-add',"
+ " 'arguments': {"
+ " 'options': {"
+ " 'driver': 'file',"
+ " 'filename': '/dev/null',"
+ " 'id': %s"
+ "} } }", drive_id);
+ g_assert(response);
+ g_assert(!qdict_haskey(response, "error"));
+ QDECREF(response);
+
+ sprintf(device_id, "dev-%x.%x", i, j);
+ sprintf(addr, "0x%x.%x", i, j);
+ response = qmp("{'execute': 'device_add',"
+ " 'arguments': {"
+ " 'driver': 'virtio-blk-pci',"
+ " 'drive': %s,"
+ " 'id': %s,"
+ " 'addr': %s,"
+ " 'multifunction': 'on'"
+ "} }", drive_id, device_id, addr);
+ g_assert(response);
+ g_assert(!qdict_haskey(response, "error"));
+ QDECREF(response);
+ }
+ }
+
+ /* hot-unplug doesn't work without cooperation of guest OS */
+ for (i = MIN_PCI_SLOT; i <= MAX_PCI_SLOT; i++) {
+ for (j = MAX_PCI_FUNC; j >= 0; j--) {
+ qmp_exec_hmp_cmd("", "drive_del drv-%x.%x", i, j);
+ if (j == 0) {
+ sprintf(device_id, "dev-%x.%x", i, 0);
+ response = qmp("{'execute': 'device_del',"
+ " 'arguments': {"
+ " 'id': %s"
+ "} }", device_id);
+ g_assert(response);
+ g_assert(!qdict_haskey(response, "error"));
+ QDECREF(response);
+ }
+ }
+ }
+
+ qtest_end();
+}
+
/* Tests only initialization */
static void virtblk_init(void)
{
@@ -26,6 +93,7 @@ int main(int argc, char **argv)
g_test_init(&argc, &argv, NULL);
qtest_add_func("/virtio/blk/pci/init", virtblk_init);
+ qtest_add_func("/virtio/blk/pci/hotplug", test_blk_hotplug);
ret = g_test_run();
--
1.9.3
