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/*
* QEMU live migration
*
* Copyright IBM, Corp. 2008
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
*/
#include "qemu-common.h"
#include "migration.h"
#include "console.h"
/* Migration speed throttling */
static uint32_t max_throttle = (32 << 20);
static MigrationState *current_migration;
void qemu_start_incoming_migration(const char *uri)
{
const char *p;
if (strstart(uri, "tcp:", &p))
tcp_start_incoming_migration(p);
else
fprintf(stderr, "unknown migration protocol: %s\n", uri);
}
void do_migrate(int detach, const char *uri)
{
MigrationState *s = NULL;
const char *p;
if (strstart(uri, "tcp:", &p))
s = tcp_start_outgoing_migration(p, max_throttle, detach);
else
term_printf("unknown migration protocol: %s\n", uri);
if (s == NULL)
term_printf("migration failed\n");
else {
if (current_migration)
current_migration->release(current_migration);
current_migration = s;
}
}
void do_migrate_cancel(void)
{
MigrationState *s = current_migration;
if (s)
s->cancel(s);
}
void do_migrate_set_speed(const char *value)
{
double d;
char *ptr;
d = strtod(value, &ptr);
switch (*ptr) {
case 'G': case 'g':
d *= 1024;
case 'M': case 'm':
d *= 1024;
case 'K': case 'k':
d *= 1024;
default:
break;
}
max_throttle = (uint32_t)d;
}
void do_info_migrate(void)
{
MigrationState *s = current_migration;
if (s) {
term_printf("Migration status: ");
switch (s->get_status(s)) {
case MIG_STATE_ACTIVE:
term_printf("active\n");
break;
case MIG_STATE_COMPLETED:
term_printf("completed\n");
break;
case MIG_STATE_ERROR:
term_printf("failed\n");
break;
case MIG_STATE_CANCELLED:
term_printf("cancelled\n");
break;
}
}
}
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