commit a606ce50c29561b567995ab663cbb40067623e82
author John Snow <jsnow@redhat.com> Fri May 22 14:13:43 2015 -0400
committer John Snow <jsnow@redhat.com> Fri May 22 15:58:22 2015 -0400
tree 2ba69c87799da703c67ee9b58195ecfcc3775150
parent 88e21f9485f0a41603f0af3483ff3f11c95979ab

qtest/ahci: add flush migrate test

Use blkdebug to inject an error on first flush, then attempt to flush
on the first guest. When the error halts the VM, migrate to the
second VM, and attempt to resume the command.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1430417242-11859-8-git-send-email-jsnow@redhat.com

tests/ahci-test.c

diff --git a/tests/ahci-test.c b/tests/ahci-test.c
index 6513330..f6de355 100644
--- a/tests/ahci-test.c
+++ b/tests/ahci-test.c
@@ -1071,7 +1071,7 @@
                                 debug_path,
                                 tmp_path);
 
-    /* Issue Flush Command */
+    /* Issue Flush Command and wait for error */
     port = ahci_port_select(ahci);
     ahci_port_clear(ahci, port);
     cmd = ahci_command_create(CMD_FLUSH_CACHE);
@@ -1154,6 +1154,55 @@
     g_free(tx);
 }
 
+/**
+ * Migration test: Try to flush, migrate, then resume.
+ */
+static void test_flush_migrate(void)
+{
+    AHCIQState *src, *dst;
+    AHCICommand *cmd;
+    uint8_t px;
+    const char *s;
+    const char *uri = "tcp:127.0.0.1:1234";
+
+    prepare_blkdebug_script(debug_path, "flush_to_disk");
+
+    src = ahci_boot_and_enable("-drive file=blkdebug:%s:%s,if=none,id=drive0,"
+                               "cache=writeback,rerror=stop,werror=stop "
+                               "-M q35 "
+                               "-device ide-hd,drive=drive0 ",
+                               debug_path, tmp_path);
+    dst = ahci_boot("-drive file=%s,if=none,id=drive0,"
+                    "cache=writeback,rerror=stop,werror=stop "
+                    "-M q35 "
+                    "-device ide-hd,drive=drive0 "
+                    "-incoming %s", tmp_path, uri);
+
+    set_context(src->parent);
+
+    /* Issue Flush Command */
+    px = ahci_port_select(src);
+    ahci_port_clear(src, px);
+    cmd = ahci_command_create(CMD_FLUSH_CACHE);
+    ahci_command_commit(src, cmd, px);
+    ahci_command_issue_async(src, cmd);
+    qmp_eventwait("STOP");
+
+    /* Migrate over */
+    ahci_migrate(src, dst, uri);
+
+    /* Complete the command */
+    s = "{'execute':'cont' }";
+    qmp_async(s);
+    qmp_eventwait("RESUME");
+    ahci_command_wait(dst, cmd);
+    ahci_command_verify(dst, cmd);
+
+    ahci_command_free(cmd);
+    ahci_shutdown(src);
+    ahci_shutdown(dst);
+}
+
 /******************************************************************************/
 /* AHCI I/O Test Matrix Definitions                                           */
 
@@ -1402,6 +1451,7 @@
 
     qtest_add_func("/ahci/flush/simple", test_flush);
     qtest_add_func("/ahci/flush/retry", test_flush_retry);
+    qtest_add_func("/ahci/flush/migrate", test_flush_migrate);
 
     qtest_add_func("/ahci/migrate/sanity", test_migrate_sanity);
     qtest_add_func("/ahci/migrate/dma", test_migrate_dma);