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qemu-kvm/SOURCES/kvm-migration-Move-qmp_migr...

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From 944bf4759d1279c342ddd29c47d47c9670b64625 Mon Sep 17 00:00:00 2001
From: Juan Quintela <quintela@redhat.com>
Date: Thu, 2 Mar 2023 10:13:16 +0100
Subject: [PATCH 50/56] migration: Move qmp_migrate_set_parameters() to
options.c
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Peter Xu <peterx@redhat.com>
RH-MergeRequest: 162: migration: Pretty failures for postcopy on unsupported memory types
RH-Bugzilla: 2057267
RH-Acked-by: Leonardo Brás <leobras@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
RH-Acked-by: quintela1 <quintela@redhat.com>
RH-Commit: [49/50] b55f7afe868e117d4212f1518b9a37514cc99b33 (peterx/qemu-kvm)
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
(cherry picked from commit 09d6c9658474e8573c5ada58dca8b20fe47dd99e)
Signed-off-by: Peter Xu <peterx@redhat.com>
---
migration/migration.c | 420 ------------------------------------------
migration/options.c | 418 +++++++++++++++++++++++++++++++++++++++++
migration/options.h | 11 ++
3 files changed, 429 insertions(+), 420 deletions(-)
diff --git a/migration/migration.c b/migration/migration.c
index 22ef83c619..08f87f2b0e 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -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();
diff --git a/migration/options.c b/migration/options.c
index d4c0714683..4701c75a4d 100644
--- a/migration/options.c
+++ b/migration/options.c
@@ -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;
@@ -729,3 +737,413 @@ 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);
+}
diff --git a/migration/options.h b/migration/options.h
index 13318a16c7..89067e59a0 100644
--- a/migration/options.h
+++ b/migration/options.h
@@ -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
--
2.39.1
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