motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-03 15:53:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

migration: Add qmp commands to set and query parameters

Browse source 
Add the qmp commands to tune and query the parameters used in live
migration.

Signed-off-by: Liang Li <liang.z.li@intel.com>
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Liang Li 2015-03-23 16:32:28 +08:00 • committed by Juan Quintela
parent 43c60a81ba
commit 85de83231e
3 changed files with 158 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

56
migration/migration.c
View file

@ -188,6 +188,21 @@ MigrationCapabilityStatusList *qmp_query_migrate_capabilities(Error **errp)
return head;
}
MigrationParameters *qmp_query_migrate_parameters(Error **errp)
{
MigrationParameters *params;
MigrationState *s = migrate_get_current();
params = g_malloc0(sizeof(*params));
params->compress_level = s->parameters[MIGRATION_PARAMETER_COMPRESS_LEVEL];
params->compress_threads =
s->parameters[MIGRATION_PARAMETER_COMPRESS_THREADS];
params->decompress_threads =
s->parameters[MIGRATION_PARAMETER_DECOMPRESS_THREADS];
return params;
}
static void get_xbzrle_cache_stats(MigrationInfo *info)
{
if (migrate_use_xbzrle()) {
@ -301,6 +316,47 @@ void qmp_migrate_set_capabilities(MigrationCapabilityStatusList *params,
}
}
void qmp_migrate_set_parameters(bool has_compress_level,
int64_t compress_level,
bool has_compress_threads,
int64_t compress_threads,
bool has_decompress_threads,
int64_t decompress_threads, Error **errp)
{
MigrationState *s = migrate_get_current();
if (has_compress_level && (compress_level < 0 || compress_level > 9)) {
error_set(errp, QERR_INVALID_PARAMETER_VALUE, "compress_level",
"is invalid, it should be in the range of 0 to 9");
return;
}
if (has_compress_threads &&
(compress_threads < 1 || compress_threads > 255)) {
error_set(errp, QERR_INVALID_PARAMETER_VALUE,
"compress_threads",
"is invalid, it should be in the range of 1 to 255");
return;
}
if (has_decompress_threads &&
(decompress_threads < 1 || decompress_threads > 255)) {
error_set(errp, QERR_INVALID_PARAMETER_VALUE,
"decompress_threads",
"is invalid, it should be in the range of 1 to 255");
return;
}
if (has_compress_level) {
s->parameters[MIGRATION_PARAMETER_COMPRESS_LEVEL] = compress_level;
}
if (has_compress_threads) {
s->parameters[MIGRATION_PARAMETER_COMPRESS_THREADS] = compress_threads;
}
if (has_decompress_threads) {
s->parameters[MIGRATION_PARAMETER_DECOMPRESS_THREADS] =
decompress_threads;
}
}
/* shared migration helpers */
static void migrate_set_state(MigrationState *s, int old_state, int new_state)