migration.c

   1 /*
   2  * QEMU live migration
   3  *
   4  * Copyright IBM, Corp. 2008
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2.  See
  10  * the COPYING file in the top-level directory.
  11  *
  12  */
  13
  14 #include "qemu-common.h"
  15 #include "migration.h"
  16 #include "console.h"
  17
  18 /* Migration speed throttling */
  19 static uint32_t max_throttle = (32 << 20);
  20
  21 static MigrationState *current_migration;
  22
  23 void qemu_start_incoming_migration(const char *uri)
  24 {
  25     fprintf(stderr, "unknown migration protocol: %s\n", uri);
  26 }
  27
  28 void do_migrate(int detach, const char *uri)
  29 {
  30     term_printf("unknown migration protocol: %s\n", uri);
  31 }
  32
  33 void do_migrate_cancel(void)
  34 {
  35     MigrationState *s = current_migration;
  36
  37     if (s)
  38         s->cancel(s);
  39 }
  40
  41 void do_migrate_set_speed(const char *value)
  42 {
  43     double d;
  44     char *ptr;
  45
  46     d = strtod(value, &ptr);
  47     switch (*ptr) {
  48     case 'G': case 'g':
  49         d *= 1024;
  50     case 'M': case 'm':
  51         d *= 1024;
  52     case 'K': case 'k':
  53         d *= 1024;
  54     default:
  55         break;
  56     }
  57
  58     max_throttle = (uint32_t)d;
  59 }
  60
  61 void do_info_migrate(void)
  62 {
  63     MigrationState *s = current_migration;
  64
  65     if (s) {
  66         term_printf("Migration status: ");
  67         switch (s->get_status(s)) {
  68         case MIG_STATE_ACTIVE:
  69             term_printf("active\n");
  70             break;
  71         case MIG_STATE_COMPLETED:
  72             term_printf("completed\n");
  73             break;
  74         case MIG_STATE_ERROR:
  75             term_printf("failed\n");
  76             break;
  77         case MIG_STATE_CANCELLED:
  78             term_printf("cancelled\n");
  79             break;
  80         }
  81     }
  82 }
  83