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Berrange" , Markus Armbruster , Steve Sistare Subject: [PATCH V2 10/13] migration: cpr-uri parameter Date: Mon, 30 Sep 2024 12:40:41 -0700 Message-Id: <1727725244-105198-11-git-send-email-steven.sistare@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1727725244-105198-1-git-send-email-steven.sistare@oracle.com> References: <1727725244-105198-1-git-send-email-steven.sistare@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-09-30_19,2024-09-30_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 phishscore=0 malwarescore=0 mlxscore=0 spamscore=0 suspectscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2408220000 definitions=main-2409300142 X-Proofpoint-ORIG-GUID: yvYRjm3iREcn4m_FcyhjPNg7IGuFOnLM X-Proofpoint-GUID: yvYRjm3iREcn4m_FcyhjPNg7IGuFOnLM Received-SPF: pass client-ip=205.220.165.32; envelope-from=steven.sistare@oracle.com; helo=mx0a-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Define the cpr-uri migration parameter to specify the URI to which CPR vmstate is saved for cpr-transfer mode. Signed-off-by: Steve Sistare --- migration/migration-hmp-cmds.c | 10 ++++++++++ migration/options.c | 28 ++++++++++++++++++++++++++++ migration/options.h | 1 + qapi/migration.json | 18 +++++++++++++++--- 4 files changed, 54 insertions(+), 3 deletions(-) diff --git a/migration/migration-hmp-cmds.c b/migration/migration-hmp-cmds.c index 20d1a6e..79d8c66 100644 --- a/migration/migration-hmp-cmds.c +++ b/migration/migration-hmp-cmds.c @@ -358,6 +358,11 @@ void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict) MIGRATION_PARAMETER_DIRECT_IO), params->direct_io ? "on" : "off"); } + + assert(params->cpr_uri); + monitor_printf(mon, "%s: '%s'\n", + MigrationParameter_str(MIGRATION_PARAMETER_CPR_URI), + params->cpr_uri); } qapi_free_MigrationParameters(params); @@ -639,6 +644,11 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) p->has_direct_io = true; visit_type_bool(v, param, &p->direct_io, &err); break; + case MIGRATION_PARAMETER_CPR_URI: + p->cpr_uri = g_new0(StrOrNull, 1); + p->cpr_uri->type = QTYPE_QSTRING; + visit_type_str(v, param, &p->cpr_uri->u.s, &err); + break; default: g_assert_not_reached(); } diff --git a/migration/options.c b/migration/options.c index cc85a84..6e7fea7 100644 --- a/migration/options.c +++ b/migration/options.c @@ -173,6 +173,8 @@ Property migration_properties[] = { DEFINE_PROP_ZERO_PAGE_DETECTION("zero-page-detection", MigrationState, parameters.zero_page_detection, ZERO_PAGE_DETECTION_MULTIFD), + DEFINE_PROP_STRING("cpr-uri", MigrationState, + parameters.cpr_uri), /* Migration capabilities */ DEFINE_PROP_MIG_CAP("x-xbzrle", MIGRATION_CAPABILITY_XBZRLE), @@ -865,6 +867,13 @@ ZeroPageDetection migrate_zero_page_detection(void) return s->parameters.zero_page_detection; } +const char *migrate_cpr_uri(void) +{ + MigrationState *s = migrate_get_current(); + + return s->parameters.cpr_uri; +} + /* parameters helpers */ AnnounceParameters *migrate_announce_params(void) @@ -950,6 +959,7 @@ MigrationParameters *qmp_query_migrate_parameters(Error **errp) params->zero_page_detection = s->parameters.zero_page_detection; params->has_direct_io = true; params->direct_io = s->parameters.direct_io; + params->cpr_uri = g_strdup(s->parameters.cpr_uri); return params; } @@ -984,6 +994,7 @@ void migrate_params_init(MigrationParameters *params) params->has_mode = true; params->has_zero_page_detection = true; params->has_direct_io = true; + params->cpr_uri = g_strdup(""); } /* @@ -1283,6 +1294,11 @@ static void migrate_params_test_apply(MigrateSetParameters *params, if (params->has_direct_io) { dest->direct_io = params->direct_io; } + + if (params->cpr_uri) { + assert(params->cpr_uri->type == QTYPE_QSTRING); + dest->cpr_uri = params->cpr_uri->u.s; + } } static void migrate_params_apply(MigrateSetParameters *params, Error **errp) @@ -1415,6 +1431,12 @@ static void migrate_params_apply(MigrateSetParameters *params, Error **errp) if (params->has_direct_io) { s->parameters.direct_io = params->direct_io; } + + if (params->cpr_uri) { + g_free(s->parameters.cpr_uri); + assert(params->cpr_uri->type == QTYPE_QSTRING); + s->parameters.cpr_uri = g_strdup(params->cpr_uri->u.s); + } } void qmp_migrate_set_parameters(MigrateSetParameters *params, Error **errp) @@ -1441,6 +1463,12 @@ void qmp_migrate_set_parameters(MigrateSetParameters *params, Error **errp) params->tls_authz->u.s = strdup(""); } + if (params->cpr_uri && params->cpr_uri->type == QTYPE_QNULL) { + qobject_unref(params->cpr_uri->u.n); + params->cpr_uri->type = QTYPE_QSTRING; + params->cpr_uri->u.s = strdup(""); + } + migrate_params_test_apply(params, &tmp); if (!migrate_params_check(&tmp, errp)) { diff --git a/migration/options.h b/migration/options.h index a0bd6ed..efccb0e 100644 --- a/migration/options.h +++ b/migration/options.h @@ -86,6 +86,7 @@ const char *migrate_tls_creds(void); const char *migrate_tls_hostname(void); uint64_t migrate_xbzrle_cache_size(void); ZeroPageDetection migrate_zero_page_detection(void); +const char *migrate_cpr_uri(void); /* parameters helpers */ diff --git a/qapi/migration.json b/qapi/migration.json index b66cccf..c0d8bcc 100644 --- a/qapi/migration.json +++ b/qapi/migration.json @@ -841,6 +841,9 @@ # only has effect if the @mapped-ram capability is enabled. # (Since 9.1) # +# @cpr-uri: URI for an additional migration channel needed by +# @cpr-transfer mode. (Since 9.2) +# # Features: # # @unstable: Members @x-checkpoint-delay and @@ -867,7 +870,8 @@ 'vcpu-dirty-limit', 'mode', 'zero-page-detection', - 'direct-io'] } + 'direct-io', + 'cpr-uri'] } ## # @MigrateSetParameters: @@ -1022,6 +1026,9 @@ # only has effect if the @mapped-ram capability is enabled. # (Since 9.1) # +# @cpr-uri: URI for an additional migration channel needed by +# @cpr-transfer mode. (Since 9.2) +# # Features: # # @unstable: Members @x-checkpoint-delay and @@ -1063,7 +1070,8 @@ '*vcpu-dirty-limit': 'uint64', '*mode': 'MigMode', '*zero-page-detection': 'ZeroPageDetection', - '*direct-io': 'bool' } } + '*direct-io': 'bool', + '*cpr-uri': 'StrOrNull' } } ## # @migrate-set-parameters: @@ -1232,6 +1240,9 @@ # only has effect if the @mapped-ram capability is enabled. # (Since 9.1) # +# @cpr-uri: URI for an additional migration channel needed by +# @cpr-transfer mode. (Since 9.2) +# # Features: # # @unstable: Members @x-checkpoint-delay and @@ -1270,7 +1281,8 @@ '*vcpu-dirty-limit': 'uint64', '*mode': 'MigMode', '*zero-page-detection': 'ZeroPageDetection', - '*direct-io': 'bool' } } + '*direct-io': 'bool', + '*cpr-uri': 'str' } } ## # @query-migrate-parameters: