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[Qemu-devel] [PATCH 2/2] virtio-blk-test.c: add hotplug subtest
From: |
Amos Kong |
Subject: |
[Qemu-devel] [PATCH 2/2] virtio-blk-test.c: add hotplug subtest |
Date: |
Tue, 27 May 2014 15:14:41 +0800 |
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 <address@hidden>
---
tests/virtio-blk-test.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/tests/virtio-blk-test.c b/tests/virtio-blk-test.c
index 0fdec01..54d1272 100644
--- a/tests/virtio-blk-test.c
+++ b/tests/virtio-blk-test.c
@@ -7,11 +7,65 @@
* 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"
+static void exec_hmp_cmd(const char *cmd, const char *expected_ret)
+{
+ QDict *response;
+ const char *response_return;
+
+ response = qmp("{\"execute\": \"human-monitor-command\","
+ " \"arguments\": {"
+ " \"command-line\": \"%s\""
+ "}}", cmd);
+ g_assert(response);
+ response_return = qdict_get_try_str(response, "return");
+ g_assert(response_return);
+ g_assert(strcmp(response_return, expected_ret) == 0);
+ QDECREF(response);
+}
+
+static void test_blk_hotplug(void)
+{
+ char addr[6];
+ char cmd[100];
+ int i, j;
+
+ /* Start with no network/block device, slots 3~0x1f are free */
+ qtest_start("-net none");
+
+ for (i = 3; i <= 0x1f; i++) {
+ for (j = 7; j >= 0; j--) {
+ sprintf(addr, "%x.%x", i, j);
+ sprintf(cmd, "drive_add 0x%s if=none,file=/dev/null,id=drv-%s",
+ addr, addr);
+ exec_hmp_cmd(cmd, "OK\r\n");
+
+ sprintf(cmd, "device_add virtio-blk-pci,id=dev-%s,drive=drv-%s,"
+ "addr=0x%s,multifunction=on", addr, addr, addr);
+ exec_hmp_cmd(cmd, "");
+ }
+ }
+
+ /* hot-unplug doesn't work without cooperation of guest OS */
+ for (i = 3; i <= 0x1f; i++) {
+ for (j = 7; j >= 0; j--) {
+ sprintf(addr, "%x.%x", i, j);
+ sprintf(cmd, "drive_del drv-%s", addr);
+ exec_hmp_cmd(cmd, "");
+
+ sprintf(cmd, "device_del dev-%s", addr);
+ exec_hmp_cmd(cmd, "");
+ }
+ }
+
+ qtest_end();
+}
+
/* Tests only initialization */
static void virtblk_init(void)
{
@@ -26,6 +80,7 @@ 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();
--
1.9.0