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qmp: hmp: add migrate "resume" option 

It will be used when we want to resume one paused migration.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180502104740.12123-8-peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
s/2.12/2.13/
This commit is contained in:
Peter Xu 2018-05-02 18:47:23 +08:00 committed by Juan Quintela
parent 3a7804c306
commit 7a4da28b26
4 changed files with 12 additions and 6 deletions
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7
hmp-commands.hx
View File

@ -897,13 +897,14 @@ ETEXI
{ {
.name = "migrate", .name = "migrate",
.args_type = "detach:-d,blk:-b,inc:-i,uri:s", .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
.params = "[-d] [-b] [-i] uri", .params = "[-d] [-b] [-i] [-r] uri",
.help = "migrate to URI (using -d to not wait for completion)" .help = "migrate to URI (using -d to not wait for completion)"
"\n\t\t\t -b for migration without shared storage with" "\n\t\t\t -b for migration without shared storage with"
" full copy of disk\n\t\t\t -i for migration without " " full copy of disk\n\t\t\t -i for migration without "
"shared storage with incremental copy of disk " "shared storage with incremental copy of disk "
"(base image shared between src and destination)", "(base image shared between src and destination)"
"\n\t\t\t -r to resume a paused migration",
.cmd = hmp_migrate, .cmd = hmp_migrate,
}, },

4
hmp.c
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@ -1929,10 +1929,12 @@ void hmp_migrate(Monitor *mon, const QDict *qdict)
bool detach = qdict_get_try_bool(qdict, "detach", false); bool detach = qdict_get_try_bool(qdict, "detach", false);
bool blk = qdict_get_try_bool(qdict, "blk", false); bool blk = qdict_get_try_bool(qdict, "blk", false);
bool inc = qdict_get_try_bool(qdict, "inc", false); bool inc = qdict_get_try_bool(qdict, "inc", false);
bool resume = qdict_get_try_bool(qdict, "resume", false);
const char *uri = qdict_get_str(qdict, "uri"); const char *uri = qdict_get_str(qdict, "uri");
Error *err = NULL; Error *err = NULL;
qmp_migrate(uri, !!blk, blk, !!inc, inc, false, false, &err); qmp_migrate(uri, !!blk, blk, !!inc, inc,
false, false, true, resume, &err);
if (err) { if (err) {
hmp_handle_error(mon, &err); hmp_handle_error(mon, &err);
return; return;

2
migration/migration.c
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@ -1413,7 +1413,7 @@ bool migration_is_blocked(Error **errp)
void qmp_migrate(const char *uri, bool has_blk, bool blk, void qmp_migrate(const char *uri, bool has_blk, bool blk,
bool has_inc, bool inc, bool has_detach, bool detach, bool has_inc, bool inc, bool has_detach, bool detach,
Error **errp) bool has_resume, bool resume, Error **errp)
{ {
Error *local_err = NULL; Error *local_err = NULL;
MigrationState *s = migrate_get_current(); MigrationState *s = migrate_get_current();

5
qapi/migration.json
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@ -1031,6 +1031,8 @@
# @detach: this argument exists only for compatibility reasons and # @detach: this argument exists only for compatibility reasons and
# is ignored by QEMU # is ignored by QEMU
# #
# @resume: resume one paused migration, default "off". (since 2.13)
#
# Returns: nothing on success # Returns: nothing on success
# #
# Since: 0.14.0 # Since: 0.14.0
@ -1052,7 +1054,8 @@
# #
## ##
{ 'command': 'migrate', { 'command': 'migrate',
'data': {'uri': 'str', '*blk': 'bool', '*inc': 'bool', '*detach': 'bool' } } 'data': {'uri': 'str', '*blk': 'bool', '*inc': 'bool',
'*detach': 'bool', '*resume': 'bool' } }
## ##
# @migrate-incoming: # @migrate-incoming: