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migration: Move qmp_migrate_set_parameters() to options.c 

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
master
Juan Quintela 2023-03-02 10:13:16 +01:00
parent 10d4703be5
commit 09d6c96584
3 changed files with 429 additions and 420 deletions
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420
migration/migration.c
View File

@ -67,19 +67,10 @@
#define MAX_THROTTLE (128 << 20) /* Migration transfer speed throttling */
/* Amount of time to allocate to each "chunk" of bandwidth-throttled
* data. */
#define BUFFER_DELAY 100
#define XFER_LIMIT_RATIO (1000 / BUFFER_DELAY)
/* Time in milliseconds we are allowed to stop the source,
* for sending the last part */
#define DEFAULT_MIGRATE_SET_DOWNTIME 300
/* Maximum migrate downtime set to 2000 seconds */
#define MAX_MIGRATE_DOWNTIME_SECONDS 2000
#define MAX_MIGRATE_DOWNTIME (MAX_MIGRATE_DOWNTIME_SECONDS * 1000)
/* Default compression thread count */
#define DEFAULT_MIGRATE_COMPRESS_THREAD_COUNT 8
/* Default decompression thread count, usually decompression is at
@ -1140,417 +1131,6 @@ MigrationInfo *qmp_query_migrate(Error **errp)
return info;
}
/*
* Check whether the parameters are valid. Error will be put into errp
* (if provided). Return true if valid, otherwise false.
*/
static bool migrate_params_check(MigrationParameters *params, Error **errp)
{
if (params->has_compress_level &&
(params->compress_level > 9)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "compress_level",
"a value between 0 and 9");
return false;
}
if (params->has_compress_threads && (params->compress_threads < 1)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"compress_threads",
"a value between 1 and 255");
return false;
}
if (params->has_decompress_threads && (params->decompress_threads < 1)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"decompress_threads",
"a value between 1 and 255");
return false;
}
if (params->has_throttle_trigger_threshold &&
(params->throttle_trigger_threshold < 1 ||
params->throttle_trigger_threshold > 100)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"throttle_trigger_threshold",
"an integer in the range of 1 to 100");
return false;
}
if (params->has_cpu_throttle_initial &&
(params->cpu_throttle_initial < 1 ||
params->cpu_throttle_initial > 99)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"cpu_throttle_initial",
"an integer in the range of 1 to 99");
return false;
}
if (params->has_cpu_throttle_increment &&
(params->cpu_throttle_increment < 1 ||
params->cpu_throttle_increment > 99)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"cpu_throttle_increment",
"an integer in the range of 1 to 99");
return false;
}
if (params->has_max_bandwidth && (params->max_bandwidth > SIZE_MAX)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"max_bandwidth",
"an integer in the range of 0 to "stringify(SIZE_MAX)
" bytes/second");
return false;
}
if (params->has_downtime_limit &&
(params->downtime_limit > MAX_MIGRATE_DOWNTIME)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"downtime_limit",
"an integer in the range of 0 to "
stringify(MAX_MIGRATE_DOWNTIME)" ms");
return false;
}
/* x_checkpoint_delay is now always positive */
if (params->has_multifd_channels && (params->multifd_channels < 1)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"multifd_channels",
"a value between 1 and 255");
return false;
}
if (params->has_multifd_zlib_level &&
(params->multifd_zlib_level > 9)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "multifd_zlib_level",
"a value between 0 and 9");
return false;
}
if (params->has_multifd_zstd_level &&
(params->multifd_zstd_level > 20)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "multifd_zstd_level",
"a value between 0 and 20");
return false;
}
if (params->has_xbzrle_cache_size &&
(params->xbzrle_cache_size < qemu_target_page_size() ||
!is_power_of_2(params->xbzrle_cache_size))) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"xbzrle_cache_size",
"a power of two no less than the target page size");
return false;
}
if (params->has_max_cpu_throttle &&
(params->max_cpu_throttle < params->cpu_throttle_initial ||
params->max_cpu_throttle > 99)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"max_cpu_throttle",
"an integer in the range of cpu_throttle_initial to 99");
return false;
}
if (params->has_announce_initial &&
params->announce_initial > 100000) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"announce_initial",
"a value between 0 and 100000");
return false;
}
if (params->has_announce_max &&
params->announce_max > 100000) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"announce_max",
"a value between 0 and 100000");
return false;
}
if (params->has_announce_rounds &&
params->announce_rounds > 1000) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"announce_rounds",
"a value between 0 and 1000");
return false;
}
if (params->has_announce_step &&
(params->announce_step < 1 ||
params->announce_step > 10000)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"announce_step",
"a value between 0 and 10000");
return false;
}
if (params->has_block_bitmap_mapping &&
!check_dirty_bitmap_mig_alias_map(params->block_bitmap_mapping, errp)) {
error_prepend(errp, "Invalid mapping given for block-bitmap-mapping: ");
return false;
}
#ifdef CONFIG_LINUX
if (migrate_zero_copy_send() &&
((params->has_multifd_compression && params->multifd_compression) ||
(params->tls_creds && *params->tls_creds))) {
error_setg(errp,
"Zero copy only available for non-compressed non-TLS multifd migration");
return false;
}
#endif
return true;
}
static void migrate_params_test_apply(MigrateSetParameters *params,
MigrationParameters *dest)
{
*dest = migrate_get_current()->parameters;
/* TODO use QAPI_CLONE() instead of duplicating it inline */
if (params->has_compress_level) {
dest->compress_level = params->compress_level;
}
if (params->has_compress_threads) {
dest->compress_threads = params->compress_threads;
}
if (params->has_compress_wait_thread) {
dest->compress_wait_thread = params->compress_wait_thread;
}
if (params->has_decompress_threads) {
dest->decompress_threads = params->decompress_threads;
}
if (params->has_throttle_trigger_threshold) {
dest->throttle_trigger_threshold = params->throttle_trigger_threshold;
}
if (params->has_cpu_throttle_initial) {
dest->cpu_throttle_initial = params->cpu_throttle_initial;
}
if (params->has_cpu_throttle_increment) {
dest->cpu_throttle_increment = params->cpu_throttle_increment;
}
if (params->has_cpu_throttle_tailslow) {
dest->cpu_throttle_tailslow = params->cpu_throttle_tailslow;
}
if (params->tls_creds) {
assert(params->tls_creds->type == QTYPE_QSTRING);
dest->tls_creds = params->tls_creds->u.s;
}
if (params->tls_hostname) {
assert(params->tls_hostname->type == QTYPE_QSTRING);
dest->tls_hostname = params->tls_hostname->u.s;
}
if (params->has_max_bandwidth) {
dest->max_bandwidth = params->max_bandwidth;
}
if (params->has_downtime_limit) {
dest->downtime_limit = params->downtime_limit;
}
if (params->has_x_checkpoint_delay) {
dest->x_checkpoint_delay = params->x_checkpoint_delay;
}
if (params->has_block_incremental) {
dest->block_incremental = params->block_incremental;
}
if (params->has_multifd_channels) {
dest->multifd_channels = params->multifd_channels;
}
if (params->has_multifd_compression) {
dest->multifd_compression = params->multifd_compression;
}
if (params->has_xbzrle_cache_size) {
dest->xbzrle_cache_size = params->xbzrle_cache_size;
}
if (params->has_max_postcopy_bandwidth) {
dest->max_postcopy_bandwidth = params->max_postcopy_bandwidth;
}
if (params->has_max_cpu_throttle) {
dest->max_cpu_throttle = params->max_cpu_throttle;
}
if (params->has_announce_initial) {
dest->announce_initial = params->announce_initial;
}
if (params->has_announce_max) {
dest->announce_max = params->announce_max;
}
if (params->has_announce_rounds) {
dest->announce_rounds = params->announce_rounds;
}
if (params->has_announce_step) {
dest->announce_step = params->announce_step;
}
if (params->has_block_bitmap_mapping) {
dest->has_block_bitmap_mapping = true;
dest->block_bitmap_mapping = params->block_bitmap_mapping;
}
}
static void migrate_params_apply(MigrateSetParameters *params, Error **errp)
{
MigrationState *s = migrate_get_current();
/* TODO use QAPI_CLONE() instead of duplicating it inline */
if (params->has_compress_level) {
s->parameters.compress_level = params->compress_level;
}
if (params->has_compress_threads) {
s->parameters.compress_threads = params->compress_threads;
}
if (params->has_compress_wait_thread) {
s->parameters.compress_wait_thread = params->compress_wait_thread;
}
if (params->has_decompress_threads) {
s->parameters.decompress_threads = params->decompress_threads;
}
if (params->has_throttle_trigger_threshold) {
s->parameters.throttle_trigger_threshold = params->throttle_trigger_threshold;
}
if (params->has_cpu_throttle_initial) {
s->parameters.cpu_throttle_initial = params->cpu_throttle_initial;
}
if (params->has_cpu_throttle_increment) {
s->parameters.cpu_throttle_increment = params->cpu_throttle_increment;
}
if (params->has_cpu_throttle_tailslow) {
s->parameters.cpu_throttle_tailslow = params->cpu_throttle_tailslow;
}
if (params->tls_creds) {
g_free(s->parameters.tls_creds);
assert(params->tls_creds->type == QTYPE_QSTRING);
s->parameters.tls_creds = g_strdup(params->tls_creds->u.s);
}
if (params->tls_hostname) {
g_free(s->parameters.tls_hostname);
assert(params->tls_hostname->type == QTYPE_QSTRING);
s->parameters.tls_hostname = g_strdup(params->tls_hostname->u.s);
}
if (params->tls_authz) {
g_free(s->parameters.tls_authz);
assert(params->tls_authz->type == QTYPE_QSTRING);
s->parameters.tls_authz = g_strdup(params->tls_authz->u.s);
}
if (params->has_max_bandwidth) {
s->parameters.max_bandwidth = params->max_bandwidth;
if (s->to_dst_file && !migration_in_postcopy()) {
qemu_file_set_rate_limit(s->to_dst_file,
s->parameters.max_bandwidth / XFER_LIMIT_RATIO);
}
}
if (params->has_downtime_limit) {
s->parameters.downtime_limit = params->downtime_limit;
}
if (params->has_x_checkpoint_delay) {
s->parameters.x_checkpoint_delay = params->x_checkpoint_delay;
if (migration_in_colo_state()) {
colo_checkpoint_notify(s);
}
}
if (params->has_block_incremental) {
s->parameters.block_incremental = params->block_incremental;
}
if (params->has_multifd_channels) {
s->parameters.multifd_channels = params->multifd_channels;
}
if (params->has_multifd_compression) {
s->parameters.multifd_compression = params->multifd_compression;
}
if (params->has_xbzrle_cache_size) {
s->parameters.xbzrle_cache_size = params->xbzrle_cache_size;
xbzrle_cache_resize(params->xbzrle_cache_size, errp);
}
if (params->has_max_postcopy_bandwidth) {
s->parameters.max_postcopy_bandwidth = params->max_postcopy_bandwidth;
if (s->to_dst_file && migration_in_postcopy()) {
qemu_file_set_rate_limit(s->to_dst_file,
s->parameters.max_postcopy_bandwidth / XFER_LIMIT_RATIO);
}
}
if (params->has_max_cpu_throttle) {
s->parameters.max_cpu_throttle = params->max_cpu_throttle;
}
if (params->has_announce_initial) {
s->parameters.announce_initial = params->announce_initial;
}
if (params->has_announce_max) {
s->parameters.announce_max = params->announce_max;
}
if (params->has_announce_rounds) {
s->parameters.announce_rounds = params->announce_rounds;
}
if (params->has_announce_step) {
s->parameters.announce_step = params->announce_step;
}
if (params->has_block_bitmap_mapping) {
qapi_free_BitmapMigrationNodeAliasList(
s->parameters.block_bitmap_mapping);
s->parameters.has_block_bitmap_mapping = true;
s->parameters.block_bitmap_mapping =
QAPI_CLONE(BitmapMigrationNodeAliasList,
params->block_bitmap_mapping);
}
}
void qmp_migrate_set_parameters(MigrateSetParameters *params, Error **errp)
{
MigrationParameters tmp;
/* TODO Rewrite "" to null instead */
if (params->tls_creds
&& params->tls_creds->type == QTYPE_QNULL) {
qobject_unref(params->tls_creds->u.n);
params->tls_creds->type = QTYPE_QSTRING;
params->tls_creds->u.s = strdup("");
}
/* TODO Rewrite "" to null instead */
if (params->tls_hostname
&& params->tls_hostname->type == QTYPE_QNULL) {
qobject_unref(params->tls_hostname->u.n);
params->tls_hostname->type = QTYPE_QSTRING;
params->tls_hostname->u.s = strdup("");
}
migrate_params_test_apply(params, &tmp);
if (!migrate_params_check(&tmp, errp)) {
/* Invalid parameter */
return;
}
migrate_params_apply(params, errp);
}
void qmp_migrate_start_postcopy(Error **errp)
{
MigrationState *s = migrate_get_current();

418
migration/options.c
View File

@ -12,17 +12,25 @@
*/
#include "qemu/osdep.h"
#include "exec/target_page.h"
#include "qapi/clone-visitor.h"
#include "qapi/error.h"
#include "qapi/qapi-commands-migration.h"
#include "qapi/qapi-visit-migration.h"
#include "qapi/qmp/qerror.h"
#include "qapi/qmp/qnull.h"
#include "sysemu/runstate.h"
#include "migration/colo.h"
#include "migration/misc.h"
#include "migration.h"
#include "qemu-file.h"
#include "ram.h"
#include "options.h"
/* Maximum migrate downtime set to 2000 seconds */
#define MAX_MIGRATE_DOWNTIME_SECONDS 2000
#define MAX_MIGRATE_DOWNTIME (MAX_MIGRATE_DOWNTIME_SECONDS * 1000)
bool migrate_auto_converge(void)
{
MigrationState *s;
@ -734,3 +742,413 @@ MigrationParameters *qmp_query_migrate_parameters(Error **errp)
return params;
}
/*
* Check whether the parameters are valid. Error will be put into errp
* (if provided). Return true if valid, otherwise false.
*/
bool migrate_params_check(MigrationParameters *params, Error **errp)
{
if (params->has_compress_level &&
(params->compress_level > 9)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "compress_level",
"a value between 0 and 9");
return false;
}
if (params->has_compress_threads && (params->compress_threads < 1)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"compress_threads",
"a value between 1 and 255");
return false;
}
if (params->has_decompress_threads && (params->decompress_threads < 1)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"decompress_threads",
"a value between 1 and 255");
return false;
}
if (params->has_throttle_trigger_threshold &&
(params->throttle_trigger_threshold < 1 ||
params->throttle_trigger_threshold > 100)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"throttle_trigger_threshold",
"an integer in the range of 1 to 100");
return false;
}
if (params->has_cpu_throttle_initial &&
(params->cpu_throttle_initial < 1 ||
params->cpu_throttle_initial > 99)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"cpu_throttle_initial",
"an integer in the range of 1 to 99");
return false;
}
if (params->has_cpu_throttle_increment &&
(params->cpu_throttle_increment < 1 ||
params->cpu_throttle_increment > 99)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"cpu_throttle_increment",
"an integer in the range of 1 to 99");
return false;
}
if (params->has_max_bandwidth && (params->max_bandwidth > SIZE_MAX)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"max_bandwidth",
"an integer in the range of 0 to "stringify(SIZE_MAX)
" bytes/second");
return false;
}
if (params->has_downtime_limit &&
(params->downtime_limit > MAX_MIGRATE_DOWNTIME)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"downtime_limit",
"an integer in the range of 0 to "
stringify(MAX_MIGRATE_DOWNTIME)" ms");
return false;
}
/* x_checkpoint_delay is now always positive */
if (params->has_multifd_channels && (params->multifd_channels < 1)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"multifd_channels",
"a value between 1 and 255");
return false;
}
if (params->has_multifd_zlib_level &&
(params->multifd_zlib_level > 9)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "multifd_zlib_level",
"a value between 0 and 9");
return false;
}
if (params->has_multifd_zstd_level &&
(params->multifd_zstd_level > 20)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "multifd_zstd_level",
"a value between 0 and 20");
return false;
}
if (params->has_xbzrle_cache_size &&
(params->xbzrle_cache_size < qemu_target_page_size() ||
!is_power_of_2(params->xbzrle_cache_size))) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"xbzrle_cache_size",
"a power of two no less than the target page size");
return false;
}
if (params->has_max_cpu_throttle &&
(params->max_cpu_throttle < params->cpu_throttle_initial ||
params->max_cpu_throttle > 99)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"max_cpu_throttle",
"an integer in the range of cpu_throttle_initial to 99");
return false;
}
if (params->has_announce_initial &&
params->announce_initial > 100000) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"announce_initial",
"a value between 0 and 100000");
return false;
}
if (params->has_announce_max &&
params->announce_max > 100000) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"announce_max",
"a value between 0 and 100000");
return false;
}
if (params->has_announce_rounds &&
params->announce_rounds > 1000) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"announce_rounds",
"a value between 0 and 1000");
return false;
}
if (params->has_announce_step &&
(params->announce_step < 1 ||
params->announce_step > 10000)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"announce_step",
"a value between 0 and 10000");
return false;
}
if (params->has_block_bitmap_mapping &&
!check_dirty_bitmap_mig_alias_map(params->block_bitmap_mapping, errp)) {
error_prepend(errp, "Invalid mapping given for block-bitmap-mapping: ");
return false;
}
#ifdef CONFIG_LINUX
if (migrate_zero_copy_send() &&
((params->has_multifd_compression && params->multifd_compression) ||
(params->tls_creds && *params->tls_creds))) {
error_setg(errp,
"Zero copy only available for non-compressed non-TLS multifd migration");
return false;
}
#endif
return true;
}
static void migrate_params_test_apply(MigrateSetParameters *params,
MigrationParameters *dest)
{
*dest = migrate_get_current()->parameters;
/* TODO use QAPI_CLONE() instead of duplicating it inline */
if (params->has_compress_level) {
dest->compress_level = params->compress_level;
}
if (params->has_compress_threads) {
dest->compress_threads = params->compress_threads;
}
if (params->has_compress_wait_thread) {
dest->compress_wait_thread = params->compress_wait_thread;
}
if (params->has_decompress_threads) {
dest->decompress_threads = params->decompress_threads;
}
if (params->has_throttle_trigger_threshold) {
dest->throttle_trigger_threshold = params->throttle_trigger_threshold;
}
if (params->has_cpu_throttle_initial) {
dest->cpu_throttle_initial = params->cpu_throttle_initial;
}
if (params->has_cpu_throttle_increment) {
dest->cpu_throttle_increment = params->cpu_throttle_increment;
}
if (params->has_cpu_throttle_tailslow) {
dest->cpu_throttle_tailslow = params->cpu_throttle_tailslow;
}
if (params->tls_creds) {
assert(params->tls_creds->type == QTYPE_QSTRING);
dest->tls_creds = params->tls_creds->u.s;
}
if (params->tls_hostname) {
assert(params->tls_hostname->type == QTYPE_QSTRING);
dest->tls_hostname = params->tls_hostname->u.s;
}
if (params->has_max_bandwidth) {
dest->max_bandwidth = params->max_bandwidth;
}
if (params->has_downtime_limit) {
dest->downtime_limit = params->downtime_limit;
}
if (params->has_x_checkpoint_delay) {
dest->x_checkpoint_delay = params->x_checkpoint_delay;
}
if (params->has_block_incremental) {
dest->block_incremental = params->block_incremental;
}
if (params->has_multifd_channels) {
dest->multifd_channels = params->multifd_channels;
}
if (params->has_multifd_compression) {
dest->multifd_compression = params->multifd_compression;
}
if (params->has_xbzrle_cache_size) {
dest->xbzrle_cache_size = params->xbzrle_cache_size;
}
if (params->has_max_postcopy_bandwidth) {
dest->max_postcopy_bandwidth = params->max_postcopy_bandwidth;
}
if (params->has_max_cpu_throttle) {
dest->max_cpu_throttle = params->max_cpu_throttle;
}
if (params->has_announce_initial) {
dest->announce_initial = params->announce_initial;
}
if (params->has_announce_max) {
dest->announce_max = params->announce_max;
}
if (params->has_announce_rounds) {
dest->announce_rounds = params->announce_rounds;
}
if (params->has_announce_step) {
dest->announce_step = params->announce_step;
}
if (params->has_block_bitmap_mapping) {
dest->has_block_bitmap_mapping = true;
dest->block_bitmap_mapping = params->block_bitmap_mapping;
}
}
static void migrate_params_apply(MigrateSetParameters *params, Error **errp)
{
MigrationState *s = migrate_get_current();
/* TODO use QAPI_CLONE() instead of duplicating it inline */
if (params->has_compress_level) {
s->parameters.compress_level = params->compress_level;
}
if (params->has_compress_threads) {
s->parameters.compress_threads = params->compress_threads;
}
if (params->has_compress_wait_thread) {
s->parameters.compress_wait_thread = params->compress_wait_thread;
}
if (params->has_decompress_threads) {
s->parameters.decompress_threads = params->decompress_threads;
}
if (params->has_throttle_trigger_threshold) {
s->parameters.throttle_trigger_threshold = params->throttle_trigger_threshold;
}
if (params->has_cpu_throttle_initial) {
s->parameters.cpu_throttle_initial = params->cpu_throttle_initial;
}
if (params->has_cpu_throttle_increment) {
s->parameters.cpu_throttle_increment = params->cpu_throttle_increment;
}
if (params->has_cpu_throttle_tailslow) {
s->parameters.cpu_throttle_tailslow = params->cpu_throttle_tailslow;
}
if (params->tls_creds) {
g_free(s->parameters.tls_creds);
assert(params->tls_creds->type == QTYPE_QSTRING);
s->parameters.tls_creds = g_strdup(params->tls_creds->u.s);
}
if (params->tls_hostname) {
g_free(s->parameters.tls_hostname);
assert(params->tls_hostname->type == QTYPE_QSTRING);
s->parameters.tls_hostname = g_strdup(params->tls_hostname->u.s);
}
if (params->tls_authz) {
g_free(s->parameters.tls_authz);
assert(params->tls_authz->type == QTYPE_QSTRING);
s->parameters.tls_authz = g_strdup(params->tls_authz->u.s);
}
if (params->has_max_bandwidth) {
s->parameters.max_bandwidth = params->max_bandwidth;
if (s->to_dst_file && !migration_in_postcopy()) {
qemu_file_set_rate_limit(s->to_dst_file,
s->parameters.max_bandwidth / XFER_LIMIT_RATIO);
}
}
if (params->has_downtime_limit) {
s->parameters.downtime_limit = params->downtime_limit;
}
if (params->has_x_checkpoint_delay) {
s->parameters.x_checkpoint_delay = params->x_checkpoint_delay;
if (migration_in_colo_state()) {
colo_checkpoint_notify(s);
}
}
if (params->has_block_incremental) {
s->parameters.block_incremental = params->block_incremental;
}
if (params->has_multifd_channels) {
s->parameters.multifd_channels = params->multifd_channels;
}
if (params->has_multifd_compression) {
s->parameters.multifd_compression = params->multifd_compression;
}
if (params->has_xbzrle_cache_size) {
s->parameters.xbzrle_cache_size = params->xbzrle_cache_size;
xbzrle_cache_resize(params->xbzrle_cache_size, errp);
}
if (params->has_max_postcopy_bandwidth) {
s->parameters.max_postcopy_bandwidth = params->max_postcopy_bandwidth;
if (s->to_dst_file && migration_in_postcopy()) {
qemu_file_set_rate_limit(s->to_dst_file,
s->parameters.max_postcopy_bandwidth / XFER_LIMIT_RATIO);
}
}
if (params->has_max_cpu_throttle) {
s->parameters.max_cpu_throttle = params->max_cpu_throttle;
}
if (params->has_announce_initial) {
s->parameters.announce_initial = params->announce_initial;
}
if (params->has_announce_max) {
s->parameters.announce_max = params->announce_max;
}
if (params->has_announce_rounds) {
s->parameters.announce_rounds = params->announce_rounds;
}
if (params->has_announce_step) {
s->parameters.announce_step = params->announce_step;
}
if (params->has_block_bitmap_mapping) {
qapi_free_BitmapMigrationNodeAliasList(
s->parameters.block_bitmap_mapping);
s->parameters.has_block_bitmap_mapping = true;
s->parameters.block_bitmap_mapping =
QAPI_CLONE(BitmapMigrationNodeAliasList,
params->block_bitmap_mapping);
}
}
void qmp_migrate_set_parameters(MigrateSetParameters *params, Error **errp)
{
MigrationParameters tmp;
/* TODO Rewrite "" to null instead */
if (params->tls_creds
&& params->tls_creds->type == QTYPE_QNULL) {
qobject_unref(params->tls_creds->u.n);
params->tls_creds->type = QTYPE_QSTRING;
params->tls_creds->u.s = strdup("");
}
/* TODO Rewrite "" to null instead */
if (params->tls_hostname
&& params->tls_hostname->type == QTYPE_QNULL) {
qobject_unref(params->tls_hostname->u.n);
params->tls_hostname->type = QTYPE_QSTRING;
params->tls_hostname->u.s = strdup("");
}
migrate_params_test_apply(params, &tmp);
if (!migrate_params_check(&tmp, errp)) {
/* Invalid parameter */
return;
}
migrate_params_apply(params, errp);
}

11
migration/options.h
View File

@ -14,6 +14,13 @@
#ifndef QEMU_MIGRATION_OPTIONS_H
#define QEMU_MIGRATION_OPTIONS_H
/* constants */
/* Amount of time to allocate to each "chunk" of bandwidth-throttled
* data. */
#define BUFFER_DELAY 100
#define XFER_LIMIT_RATIO (1000 / BUFFER_DELAY)
/* capabilities */
bool migrate_auto_converge(void);
@ -74,4 +81,8 @@ int migrate_multifd_zstd_level(void);
uint8_t migrate_throttle_trigger_threshold(void);
uint64_t migrate_xbzrle_cache_size(void);
/* parameters helpers */
bool migrate_params_check(MigrationParameters *params, Error **errp);
#endif