target-arm: Set CPU has_el3 prop during virt init

[qemu.git] / qemu-img.c

diff --git a/qemu-img.c b/qemu-img.c
index a42335c632ebfaa375327581b92edeebd46f7bab..7876258fa92a254e9b64df239122e2df283b3707 100644 (file)
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1531,6 +1531,20 @@ static int img_convert(int argc, char **argv)
         goto out;
     }
 
+    if (!drv->create_opts) {
+        error_report("Format driver '%s' does not support image creation",
+                     drv->format_name);
+        ret = -1;
+        goto out;
+    }
+
+    if (!proto_drv->create_opts) {
+        error_report("Protocol driver '%s' does not support image creation",
+                     proto_drv->format_name);
+        ret = -1;
+        goto out;
+    }
+
     create_opts = qemu_opts_append(create_opts, drv->create_opts);
     create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
 
@@ -2972,6 +2986,13 @@ static int img_amend(int argc, char **argv)
         goto out;
     }
 
+    if (!bs->drv->create_opts) {
+        error_report("Format driver '%s' does not support any options to amend",
+                     fmt);
+        ret = -1;
+        goto out;
+    }
+
     create_opts = qemu_opts_append(create_opts, bs->drv->create_opts);
     opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
     if (options && qemu_opts_do_parse(opts, options, NULL)) {