ioemu-save-restore-timer

来自「xen虚拟机源代码安装包」· 代码 · 共 28 行

Index: ioemu/vl.c
===================================================================
--- ioemu.orig/vl.c	2007-05-03 19:25:11.000000000 +0100
+++ ioemu/vl.c	2007-05-03 19:26:37.000000000 +0100
@@ -915,10 +915,22 @@
 #ifdef CONFIG_DM
 static void timer_save(QEMUFile *f, void *opaque)
 {
+    /* need timer for save/restoe qemu_timer in usb_uhci */
+    if (cpu_ticks_enabled) {
+        hw_error("cannot save state if virtual timers are running");
+    }
+    qemu_put_be64s(f, &cpu_clock_offset);
 }
 
 static int timer_load(QEMUFile *f, void *opaque, int version_id)
 {
+    if (version_id != 1)
+        return -EINVAL;
+    if (cpu_ticks_enabled) {
+        return -EINVAL;
+    }
+
+    qemu_get_be64s(f, &cpu_clock_offset);
     return 0;
 }
 #else  /* !CONFIG_DM */