]> git.proxmox.com Git - mirror_qemu.git/blame - migration-exec.c
target-ppc: Altivec 2.07: Vector Doubleword Rotate and Shift Instructions
[mirror_qemu.git] / migration-exec.c
CommitLineData
065e2813
AL
1/*
2 * QEMU live migration
3 *
4 * Copyright IBM, Corp. 2008
5 * Copyright Dell MessageOne 2008
6 *
7 * Authors:
8 * Anthony Liguori <aliguori@us.ibm.com>
9 * Charles Duffy <charles_duffy@messageone.com>
10 *
11 * This work is licensed under the terms of the GNU GPL, version 2. See
12 * the COPYING file in the top-level directory.
13 *
6b620ca3
PB
14 * Contributions after 2012-01-13 are licensed under the terms of the
15 * GNU GPL, version 2 or (at your option) any later version.
065e2813
AL
16 */
17
18#include "qemu-common.h"
1de7afc9 19#include "qemu/sockets.h"
6a1751b7 20#include "qemu/main-loop.h"
caf71f86 21#include "migration/migration.h"
557ec5a0 22#include "migration/qemu-file.h"
737e150e 23#include "block/block.h"
0ffbba35
BS
24#include <sys/types.h>
25#include <sys/wait.h>
065e2813
AL
26
27//#define DEBUG_MIGRATION_EXEC
28
29#ifdef DEBUG_MIGRATION_EXEC
d0f2c4c6 30#define DPRINTF(fmt, ...) \
065e2813
AL
31 do { printf("migration-exec: " fmt, ## __VA_ARGS__); } while (0)
32#else
d0f2c4c6 33#define DPRINTF(fmt, ...) \
065e2813
AL
34 do { } while (0)
35#endif
36
f37afb5a 37void exec_start_outgoing_migration(MigrationState *s, const char *command, Error **errp)
065e2813 38{
b352365f
PB
39 s->file = qemu_popen_cmd(command, "w");
40 if (s->file == NULL) {
f37afb5a
PB
41 error_setg_errno(errp, errno, "failed to popen the migration target");
42 return;
065e2813
AL
43 }
44
065e2813 45 migrate_fd_connect(s);
065e2813
AL
46}
47
8a43b1ea 48static void exec_accept_incoming_migration(void *opaque)
065e2813 49{
8a43b1ea 50 QEMUFile *f = opaque;
065e2813 51
d263a20b 52 qemu_set_fd_handler2(qemu_get_fd(f), NULL, NULL, NULL, NULL);
a6ef2909 53 process_incoming_migration(f);
8a43b1ea
CL
54}
55
43eaae28 56void exec_start_incoming_migration(const char *command, Error **errp)
8a43b1ea
CL
57{
58 QEMUFile *f;
59
d0f2c4c6 60 DPRINTF("Attempting to start an incoming migration\n");
8a43b1ea
CL
61 f = qemu_popen_cmd(command, "r");
62 if(f == NULL) {
43eaae28
PB
63 error_setg_errno(errp, errno, "failed to popen the migration source");
64 return;
8a43b1ea
CL
65 }
66
d263a20b 67 qemu_set_fd_handler2(qemu_get_fd(f), NULL,
1c39e2a2 68 exec_accept_incoming_migration, NULL, f);
065e2813 69}