Signed-off-by: Pavel Hrdina <phrd...@redhat.com>
---
include/sysemu/sysemu.h | 2 +-
migration.c | 9 +++----
savevm.c | 64 ++++++++++++++++++++++++-------------------------
3 files changed, 37 insertions(+), 38 deletions(-)
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index f46f9d2..70c6927 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -78,7 +78,7 @@ int qemu_savevm_state_iterate(QEMUFile *f);
void qemu_savevm_state_complete(QEMUFile *f);
void qemu_savevm_state_cancel(void);
uint64_t qemu_savevm_state_pending(QEMUFile *f, uint64_t max_size);
-int qemu_loadvm_state(QEMUFile *f);
+void qemu_loadvm_state(QEMUFile *f, Error **errp);
/* SLIRP */
void do_info_slirp(Monitor *mon);
diff --git a/migration.c b/migration.c
index 3b4b467..fd8c869 100644
--- a/migration.c
+++ b/migration.c
@@ -93,12 +93,13 @@ void qemu_start_incoming_migration(const char *uri, Error
**errp)
static void process_incoming_migration_co(void *opaque)
{
QEMUFile *f = opaque;
- int ret;
+ Error *local_err = NULL;
- ret = qemu_loadvm_state(f);
+ qemu_loadvm_state(f, &local_err);
qemu_fclose(f);
- if (ret < 0) {
- fprintf(stderr, "load of migration failed\n");
+ if (error_is_set(&local_err)) {
+ fprintf(stderr, "%s\n", error_get_pretty(local_err));
+ error_free(local_err);
exit(0);
}
qemu_announce_self();
diff --git a/savevm.c b/savevm.c
index ca4a42e..0419e0d 100644
--- a/savevm.c
+++ b/savevm.c
@@ -2077,7 +2077,7 @@ typedef struct LoadStateEntry {
int version_id;
} LoadStateEntry;
-int qemu_loadvm_state(QEMUFile *f)
+void qemu_loadvm_state(QEMUFile *f, Error **errp)
{
QLIST_HEAD(, LoadStateEntry) loadvm_handlers =
QLIST_HEAD_INITIALIZER(loadvm_handlers);
@@ -2086,21 +2086,25 @@ int qemu_loadvm_state(QEMUFile *f)
unsigned int v;
int ret;
- if (qemu_savevm_state_blocked(NULL)) {
- return -EINVAL;
+ if (qemu_savevm_state_blocked(errp)) {
+ return;
}
v = qemu_get_be32(f);
- if (v != QEMU_VM_FILE_MAGIC)
- return -EINVAL;
+ if (v != QEMU_VM_FILE_MAGIC) {
+ error_setg(errp, "unknown vmstate file magic");
+ return;
+ }
v = qemu_get_be32(f);
if (v == QEMU_VM_FILE_VERSION_COMPAT) {
- fprintf(stderr, "SaveVM v2 format is obsolete and don't work
anymore\n");
- return -ENOTSUP;
+ error_setg(errp, "saveVM v2 format is obsolete and don't work
anymore");
+ return;
+ }
+ if (v != QEMU_VM_FILE_VERSION) {
+ error_setg(errp, "unknown vmstate file version");
+ return;
}
- if (v != QEMU_VM_FILE_VERSION)
- return -ENOTSUP;
while ((section_type = qemu_get_byte(f)) != QEMU_VM_EOF) {
uint32_t instance_id, version_id, section_id;
@@ -2122,16 +2126,15 @@ int qemu_loadvm_state(QEMUFile *f)
/* Find savevm section */
se = find_se(idstr, instance_id);
if (se == NULL) {
- fprintf(stderr, "Unknown savevm section or instance '%s'
%d\n", idstr, instance_id);
- ret = -EINVAL;
+ error_setg(errp, "unknown savevm section or instance '%s' %d",
+ idstr, instance_id);
goto out;
}
/* Validate version */
if (version_id > se->version_id) {
- fprintf(stderr, "savevm: unsupported version %d for '%s'
v%d\n",
- version_id, idstr, se->version_id);
- ret = -EINVAL;
+ error_setg(errp, "unsupported version %d for '%s' v%d",
+ version_id, idstr, se->version_id);
goto out;
}
@@ -2145,8 +2148,8 @@ int qemu_loadvm_state(QEMUFile *f)
ret = vmstate_load(f, le->se, le->version_id);
if (ret < 0) {
- fprintf(stderr, "qemu: warning: error while loading state for
instance 0x%x of device '%s'\n",
- instance_id, idstr);
+ error_setg(errp, "error while loading state for instance "
+ "0x%x of device '%s'", instance_id, idstr);
goto out;
}
break;
@@ -2160,40 +2163,35 @@ int qemu_loadvm_state(QEMUFile *f)
}
}
if (le == NULL) {
- fprintf(stderr, "Unknown savevm section %d\n", section_id);
- ret = -EINVAL;
+ error_setg(errp, "unknown savevm section %d", section_id);
goto out;
}
ret = vmstate_load(f, le->se, le->version_id);
if (ret < 0) {
- fprintf(stderr, "qemu: warning: error while loading state
section id %d\n",
+ error_setg(errp, "error while loading state section id %d",
section_id);
goto out;
}
break;
default:
- fprintf(stderr, "Unknown savevm section type %d\n", section_type);
- ret = -EINVAL;
+ error_setg(errp, "unknown savevm section type %d", section_type);
goto out;
}
}
cpu_synchronize_all_post_init();
- ret = 0;
+ ret = qemu_file_get_error(f);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "failed to load vmstate");
+ }
out:
QLIST_FOREACH_SAFE(le, &loadvm_handlers, entry, new_le) {
QLIST_REMOVE(le, entry);
g_free(le);
}
-
- if (ret == 0) {
- ret = qemu_file_get_error(f);
- }
-
- return ret;
}
static int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info,
@@ -2400,7 +2398,6 @@ int load_vmstate(const char *name)
BlockDriverState *bs, *bs_vm_state;
QEMUSnapshotInfo sn;
QEMUFile *f;
- int ret;
Error *local_err;
bs_vm_state = bdrv_snapshots();
@@ -2463,12 +2460,13 @@ int load_vmstate(const char *name)
}
qemu_system_reset(VMRESET_SILENT);
- ret = qemu_loadvm_state(f);
+ qemu_loadvm_state(f, &local_err);
qemu_fclose(f);
- if (ret < 0) {
- error_report("Error %d while loading VM state", ret);
- return ret;
+ if (error_is_set(&local_err)) {
+ error_report("%s", error_get_pretty(local_err));
+ error_free(local_err);
+ return -1;
}
return 0;
--
1.8.1.4
