[Qemu-devel] [PATCH v3 2/7] bootindex: add del_boot_device_path function

[arei.gonglei]

From: Gonglei <arei.gong...@huawei.com>

Introduce a del_boot_device_path() cleanup fw_cfg content
when hot-unplugging devcie refer to bootindex.

Signed-off-by: Gonglei <arei.gong...@huawei.com>
Signed-off-by: Chenliang <chenlian...@huawei.com>
---
 include/sysemu/sysemu.h |  1 +
 vl.c                    | 17 +++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index e1b0659..7a79ff4 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -209,6 +209,7 @@ void usb_info(Monitor *mon, const QDict *qdict);
 
 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
                           const char *suffix);
+void del_boot_device_path(DeviceState *dev);
 void modify_boot_device_path(int32_t bootindex, DeviceState *dev,
                              const char *suffix);
 char *get_boot_devices_list(size_t *size, bool ignore_suffixes);
diff --git a/vl.c b/vl.c
index 3e42eaa..0cdadb4 100644
--- a/vl.c
+++ b/vl.c
@@ -1248,6 +1248,23 @@ void add_boot_device_path(int32_t bootindex, DeviceState 
*dev,
     QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
 }
 
+void del_boot_device_path(DeviceState *dev)
+{
+    FWBootEntry *i;
+
+    assert(dev != NULL);
+
+    QTAILQ_FOREACH(i, &fw_boot_order, link) {
+        if (i->dev->id && dev->id && !strcmp(i->dev->id, dev->id)) {
+            /* remove all entries of the assigend dev */
+            QTAILQ_REMOVE(&fw_boot_order, i, link);
+            g_free(i->suffix);
+            g_free(i);
+            break;
+        }
+    }
+}
+
 void modify_boot_device_path(int32_t bootindex, DeviceState *dev,
                           const char *suffix)
 {
-- 
1.7.12.4