Add qemu 2.4.0

[kvmfornfv.git] / qemu / device-hotplug.c

diff --git a/qemu/device-hotplug.c b/qemu/device-hotplug.c
new file mode 100644 (file)
index 0000000..68b9496
--- /dev/null
+++ b/qemu/device-hotplug.c
@@ -0,0 +1,81 @@
+/*
+ * QEMU device hotplug helpers
+ *
+ * Copyright (c) 2004 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "hw/hw.h"
+#include "hw/boards.h"
+#include "sysemu/block-backend.h"
+#include "sysemu/blockdev.h"
+#include "qemu/config-file.h"
+#include "sysemu/sysemu.h"
+#include "monitor/monitor.h"
+
+static DriveInfo *add_init_drive(const char *optstr)
+{
+    DriveInfo *dinfo;
+    QemuOpts *opts;
+    MachineClass *mc;
+
+    opts = drive_def(optstr);
+    if (!opts)
+        return NULL;
+
+    mc = MACHINE_GET_CLASS(current_machine);
+    dinfo = drive_new(opts, mc->block_default_type);
+    if (!dinfo) {
+        qemu_opts_del(opts);
+        return NULL;
+    }
+
+    return dinfo;
+}
+
+void hmp_drive_add(Monitor *mon, const QDict *qdict)
+{
+    DriveInfo *dinfo = NULL;
+    const char *opts = qdict_get_str(qdict, "opts");
+
+    dinfo = add_init_drive(opts);
+    if (!dinfo) {
+        goto err;
+    }
+    if (dinfo->devaddr) {
+        monitor_printf(mon, "Parameter addr not supported\n");
+        goto err;
+    }
+
+    switch (dinfo->type) {
+    case IF_NONE:
+        monitor_printf(mon, "OK\n");
+        break;
+    default:
+        monitor_printf(mon, "Can't hot-add drive to type %d\n", dinfo->type);
+        goto err;
+    }
+    return;
+
+err:
+    if (dinfo) {
+        blk_unref(blk_by_legacy_dinfo(dinfo));
+    }
+}