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Mon, 24 Jul 2017 16:22:06 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" From: Scott Garfinkle virsh migrate-getmaxdowntime qemu driver enablement Signed-off-by: Scott Garfinkle --- src/qemu/qemu_driver.c | 45 ++++++++++++++++++++++++++++++++++++++++= ++++ src/qemu/qemu_monitor.h | 3 +++ src/qemu/qemu_monitor_json.c | 40 +++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_monitor_json.h | 3 +++ 4 files changed, 91 insertions(+) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 8d261b7..72b4d8c 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -13152,6 +13152,50 @@ qemuDomainMigrateSetMaxDowntime(virDomainPtr dom, return ret; } =20 + +static int +qemuDomainMigrateGetMaxDowntime(virDomainPtr dom, + unsigned long long *downtime, + unsigned int flags) +{ + virQEMUDriverPtr driver =3D dom->conn->privateData; + virDomainObjPtr vm; + qemuDomainObjPrivatePtr priv; + int ret =3D -1; + + virCheckFlags(0, -1); + + if (!(vm =3D qemuDomObjFromDomain(dom))) + goto cleanup; + + if (virDomainMigrateGetMaxDowntimeEnsureACL(dom->conn, vm->def) < 0) + goto cleanup; + + if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0) + goto cleanup; + + if (!virDomainObjIsActive(vm)) { + virReportError(VIR_ERR_OPERATION_INVALID, + "%s", _("domain is not running")); + goto endjob; + } + + priv =3D vm->privateData; + qemuDomainObjEnterMonitor(driver, vm); + + ret =3D qemuMonitorGetMigrationDowntime(priv->mon, downtime); + + if (qemuDomainObjExitMonitor(driver, vm) < 0) + ret =3D -1; + + endjob: + qemuDomainObjEndJob(driver, vm); + + cleanup: + virDomainObjEndAPI(&vm); + return ret; +} + static int qemuDomainMigrateGetCompressionCache(virDomainPtr dom, unsigned long long *cacheSize, @@ -20796,6 +20840,7 @@ static virHypervisorDriver qemuHypervisorDriver =3D= { .domainGetJobInfo =3D qemuDomainGetJobInfo, /* 0.7.7 */ .domainGetJobStats =3D qemuDomainGetJobStats, /* 1.0.3 */ .domainAbortJob =3D qemuDomainAbortJob, /* 0.7.7 */ + .domainMigrateGetMaxDowntime =3D qemuDomainMigrateGetMaxDowntime, /* 3= .6.0 */ .domainMigrateSetMaxDowntime =3D qemuDomainMigrateSetMaxDowntime, /* 0= .8.0 */ .domainMigrateGetCompressionCache =3D qemuDomainMigrateGetCompressionC= ache, /* 1.0.3 */ .domainMigrateSetCompressionCache =3D qemuDomainMigrateSetCompressionC= ache, /* 1.0.3 */ diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h index 1697db5..d094d09 100644 --- a/src/qemu/qemu_monitor.h +++ b/src/qemu/qemu_monitor.h @@ -595,6 +595,9 @@ int qemuMonitorSavePhysicalMemory(qemuMonitorPtr mon, int qemuMonitorSetMigrationSpeed(qemuMonitorPtr mon, unsigned long bandwidth); =20 +int qemuMonitorGetMigrationDowntime(qemuMonitorPtr mon, + unsigned long long *downtime); + int qemuMonitorSetMigrationDowntime(qemuMonitorPtr mon, unsigned long long downtime); =20 diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index 65b1fbb..baf03a8 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -2453,6 +2453,46 @@ int qemuMonitorJSONEjectMedia(qemuMonitorPtr mon, } =20 =20 +int qemuMonitorJSONGetMigrationDowntime(qemuMonitorPtr mon, + unsigned long long *downtime) +{ + int ret =3D -1; + virJSONValuePtr cmd; + virJSONValuePtr reply =3D NULL; + virJSONValuePtr result; + unsigned int value =3D 0; + + if (!(cmd =3D qemuMonitorJSONMakeCommand("query-migrate-parameters", N= ULL))) + return -1; + + if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0) + goto cleanup; + + if (qemuMonitorJSONHasError(reply, "CommandNotFound")) + goto cleanup; + + if (qemuMonitorJSONCheckError(cmd, reply) < 0) + goto cleanup; + + if (!(result =3D virJSONValueObjectGet(reply, "return"))) + goto cleanup; + + if (virJSONValueObjectGetNumberUint(result, "downtime-limit", &value) = < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("missing migration capabilities")); + goto cleanup; + } + + *downtime =3D value; + ret =3D 0; + + cleanup: + virJSONValueFree(cmd); + virJSONValueFree(reply); + return ret; +} + + int qemuMonitorJSONChangeMedia(qemuMonitorPtr mon, const char *dev_name, const char *newmedia, diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h index d090d57..1626085 100644 --- a/src/qemu/qemu_monitor_json.h +++ b/src/qemu/qemu_monitor_json.h @@ -128,6 +128,9 @@ int qemuMonitorJSONSetMigrationSpeed(qemuMonitorPtr mon, int qemuMonitorJSONSetMigrationDowntime(qemuMonitorPtr mon, unsigned long long downtime); =20 +int qemuMonitorJSONGetMigrationDowntime(qemuMonitorPtr mon, + unsigned long long *downtime); + int qemuMonitorJSONGetMigrationCacheSize(qemuMonitorPtr mon, unsigned long long *cacheSize); int qemuMonitorJSONSetMigrationCacheSize(qemuMonitorPtr mon, --=20 1.8.3.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Thu May 2 07:18:54 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; 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Mon, 24 Jul 2017 16:22:20 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" From: Scott Garfinkle virsh migrate-getmaxdowntime public symbols and table indices Signed-off-by: Scott Garfinkle --- src/libvirt_public.syms | 4 ++++ src/remote/remote_protocol.x | 16 +++++++++++++++- src/remote_protocol-structs | 8 ++++++++ 3 files changed, 27 insertions(+), 1 deletion(-) diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms index fac77fb..da5692a 100644 --- a/src/libvirt_public.syms +++ b/src/libvirt_public.syms @@ -768,4 +768,8 @@ LIBVIRT_3.4.0 { virStreamSparseSendAll; } LIBVIRT_3.1.0; =20 +LIBVIRT_3.6.0 { + global: + virDomainMigrateGetMaxDowntime; +} LIBVIRT_3.4.0; # .... define new API here using predicted next version number .... diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x index aa0aa38..e1f4e27 100644 --- a/src/remote/remote_protocol.x +++ b/src/remote/remote_protocol.x @@ -2326,6 +2326,15 @@ struct remote_domain_abort_job_args { }; =20 =20 +struct remote_domain_migrate_get_max_downtime_args { + remote_nonnull_domain dom; + unsigned int flags; +}; + +struct remote_domain_migrate_get_max_downtime_ret { + unsigned hyper downtime; /* insert@1 */ +}; + struct remote_domain_migrate_set_max_downtime_args { remote_nonnull_domain dom; unsigned hyper downtime; @@ -6064,7 +6073,12 @@ enum remote_procedure { * @generate: both * @acl: domain:write */ - REMOTE_PROC_DOMAIN_SET_BLOCK_THRESHOLD =3D 386 + REMOTE_PROC_DOMAIN_SET_BLOCK_THRESHOLD =3D 386, =20 + /** + * @generate: both + * @acl: domain:migrate + */ + REMOTE_PROC_DOMAIN_MIGRATE_GET_MAX_DOWNTIME =3D 387 =20 }; diff --git a/src/remote_protocol-structs b/src/remote_protocol-structs index a46fe37..5804e60 100644 --- a/src/remote_protocol-structs +++ b/src/remote_protocol-structs @@ -1778,6 +1778,13 @@ struct remote_domain_migrate_set_max_downtime_args { uint64_t downtime; u_int flags; }; +struct remote_domain_migrate_get_max_downtime_args { + remote_nonnull_domain dom; + u_int flags; +}; +struct remote_domain_migrate_get_max_downtime_ret { + uint64_t downtime; +}; struct remote_domain_migrate_get_compression_cache_args { remote_nonnull_domain dom; u_int flags; @@ -3233,4 +3240,5 @@ enum remote_procedure { REMOTE_PROC_DOMAIN_SET_VCPU =3D 384, REMOTE_PROC_DOMAIN_EVENT_BLOCK_THRESHOLD =3D 385, REMOTE_PROC_DOMAIN_SET_BLOCK_THRESHOLD =3D 386, + REMOTE_PROC_DOMAIN_GET_MAX_DOWNTIME =3D 387 }; --=20 1.8.3.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Thu May 2 07:18:54 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1500913342212906.1518611924232; 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Mon, 24 Jul 2017 16:22:20 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" From: Scott Garfinkle virsh migrate-getmaxdowntime local/libvirt enablement Signed-off-by: Scott Garfinkle --- include/libvirt/libvirt-domain.h | 4 ++++ src/driver-hypervisor.h | 6 ++++++ src/libvirt-domain.c | 45 ++++++++++++++++++++++++++++++++++++= +++ src/qemu/qemu_monitor.c | 12 +++++++++++ src/remote/remote_driver.c | 1 + tools/virsh-domain.c | 46 ++++++++++++++++++++++++++++++++++++= ++++ tools/virsh.pod | 18 ++++++++++++++++ 7 files changed, 132 insertions(+) diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-dom= ain.h index 45f939a..ed3c461 100644 --- a/include/libvirt/libvirt-domain.h +++ b/include/libvirt/libvirt-domain.h @@ -1043,6 +1043,10 @@ int virDomainMigrateSetMaxDowntime (virDomainPtr dom= ain, unsigned long long downtime, unsigned int flags); =20 +int virDomainMigrateGetMaxDowntime (virDomainPtr domain, + unsigned long long *downtime, + unsigned int flags); + int virDomainMigrateGetCompressionCache(virDomainPtr domain, unsigned long long *cacheSize, unsigned int flags); diff --git a/src/driver-hypervisor.h b/src/driver-hypervisor.h index 3053d7a..7d32cad 100644 --- a/src/driver-hypervisor.h +++ b/src/driver-hypervisor.h @@ -702,6 +702,11 @@ typedef int unsigned int flags); =20 typedef int +(*virDrvDomainMigrateGetMaxDowntime)(virDomainPtr domain, + unsigned long long *downtime, + unsigned int flags); + +typedef int (*virDrvDomainMigrateGetCompressionCache)(virDomainPtr domain, unsigned long long *cacheSize, unsigned int flags); @@ -1412,6 +1417,7 @@ struct _virHypervisorDriver { virDrvDomainGetJobInfo domainGetJobInfo; virDrvDomainGetJobStats domainGetJobStats; virDrvDomainAbortJob domainAbortJob; + virDrvDomainMigrateGetMaxDowntime domainMigrateGetMaxDowntime; virDrvDomainMigrateSetMaxDowntime domainMigrateSetMaxDowntime; virDrvDomainMigrateGetCompressionCache domainMigrateGetCompressionCach= e; virDrvDomainMigrateSetCompressionCache domainMigrateSetCompressionCach= e; diff --git a/src/libvirt-domain.c b/src/libvirt-domain.c index 4033ae8..b78ea1c 100644 --- a/src/libvirt-domain.c +++ b/src/libvirt-domain.c @@ -8781,6 +8781,51 @@ virDomainMigrateSetMaxDowntime(virDomainPtr domain, =20 =20 /** + * virDomainMigrateGetMaxDowntime: + * @domain: a domain object + * @downtime: return value of the maximum tolerable downtime for live + * migration, in milliseconds + * @flags: extra flags; not used yet, so callers should always pass 0 + * + * Gets current maximum tolerable time for which the domain may be paused + * at the end of live migration. It's supposed to be called while the doma= in is + * being live-migrated as a reaction to migration progress. + * + * Returns 0 in case of success, -1 otherwise. + */ +int +virDomainMigrateGetMaxDowntime(virDomainPtr domain, + unsigned long long *downtime, + unsigned int flags) +{ + virConnectPtr conn; + + VIR_DOMAIN_DEBUG(domain, "downtime =3D %p, flags=3D%x", downtime, flag= s); + + virResetLastError(); + + virCheckDomainReturn(domain, -1); + conn =3D domain->conn; + + virCheckNonNullArgGoto(downtime, error); + + /* unlike SetMaxDowntime, it's okay for the connection to be readonly = */ + + if (conn->driver->domainMigrateGetMaxDowntime) { + if (conn->driver->domainMigrateGetMaxDowntime(domain, + downtime, flags) < 0) + goto error; + return 0; + } + + virReportUnsupportedError(); + error: + virDispatchError(conn); + return -1; +} + + +/** * virDomainMigrateGetCompressionCache: * @domain: a domain object * @cacheSize: return value of current size of the cache (in bytes) diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c index 2b0afcc..b17a60b 100644 --- a/src/qemu/qemu_monitor.c +++ b/src/qemu/qemu_monitor.c @@ -2552,6 +2552,18 @@ qemuMonitorSetMigrationDowntime(qemuMonitorPtr mon, =20 =20 int +qemuMonitorGetMigrationDowntime(qemuMonitorPtr mon, + unsigned long long *downtime) +{ + VIR_DEBUG("downtime=3D%p", downtime); + + QEMU_CHECK_MONITOR_JSON(mon); + + return qemuMonitorJSONGetMigrationDowntime(mon, downtime); +} + + +int qemuMonitorGetMigrationCacheSize(qemuMonitorPtr mon, unsigned long long *cacheSize) { diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c index a57d25f..aa8d8a1 100644 --- a/src/remote/remote_driver.c +++ b/src/remote/remote_driver.c @@ -8400,6 +8400,7 @@ static virHypervisorDriver hypervisor_driver =3D { .domainGetJobInfo =3D remoteDomainGetJobInfo, /* 0.7.7 */ .domainGetJobStats =3D remoteDomainGetJobStats, /* 1.0.3 */ .domainAbortJob =3D remoteDomainAbortJob, /* 0.7.7 */ + .domainMigrateGetMaxDowntime =3D remoteDomainMigrateGetMaxDowntime, /*= 3.6.0 */ .domainMigrateSetMaxDowntime =3D remoteDomainMigrateSetMaxDowntime, /*= 0.8.0 */ .domainMigrateGetCompressionCache =3D remoteDomainMigrateGetCompressio= nCache, /* 1.0.3 */ .domainMigrateSetCompressionCache =3D remoteDomainMigrateSetCompressio= nCache, /* 1.0.3 */ diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c index 0684979..10fdd0f 100644 --- a/tools/virsh-domain.c +++ b/tools/virsh-domain.c @@ -10720,6 +10720,46 @@ cmdMigrateSetMaxDowntime(vshControl *ctl, const vs= hCmd *cmd) } =20 /* + * "migrate-getmaxdowntime" command + */ +static const vshCmdInfo info_migrate_getmaxdowntime[] =3D { + {.name =3D "help", + .data =3D N_("get maximum tolerable downtime") + }, + {.name =3D "desc", + .data =3D N_("Get maximum tolerable downtime (in milliseconds)for a d= omain which is being live-migrated to another host.") + }, + {.name =3D NULL} +}; + +static const vshCmdOptDef opts_migrate_getmaxdowntime[] =3D { + VIRSH_COMMON_OPT_DOMAIN_FULL, + {.name =3D NULL} +}; + +static bool +cmdMigrateGetMaxDowntime(vshControl *ctl, const vshCmd *cmd) +{ + virDomainPtr dom =3D NULL; + unsigned long long downtime; + bool ret =3D false; + + if (!(dom =3D virshCommandOptDomain(ctl, cmd, NULL))) + return false; + + if (virDomainMigrateGetMaxDowntime(dom, &downtime, 0)) + goto done; + + vshPrint(ctl, "%llu\n", downtime); + + ret =3D true; + + done: + virshDomainFree(dom); + return ret; +} + +/* * "migrate-compcache" command */ static const vshCmdInfo info_migrate_compcache[] =3D { @@ -13845,6 +13885,12 @@ const vshCmdDef domManagementCmds[] =3D { .info =3D info_migrate_setmaxdowntime, .flags =3D 0 }, + {.name =3D "migrate-getmaxdowntime", + .handler =3D cmdMigrateGetMaxDowntime, + .opts =3D opts_migrate_getmaxdowntime, + .info =3D info_migrate_getmaxdowntime, + .flags =3D 0 + }, {.name =3D "migrate-compcache", .handler =3D cmdMigrateCompCache, .opts =3D opts_migrate_compcache, diff --git a/tools/virsh.pod b/tools/virsh.pod index 43d6f0c..fc0a46c 100644 --- a/tools/virsh.pod +++ b/tools/virsh.pod @@ -1869,6 +1869,24 @@ is supposed to be used while the domain is being liv= e-migrated as a reaction to migration progress and increasing number of compression cache misses obtained from domjobinfo. =20 +=3Ditem B I + +Get the maximum tolerable downtime for a domain which is being live-migrat= ed to +another host. This is the number of milliseconds the guest is allowed +to be down at the end of live migration. + +=3Ditem B I [I<--size> B] + +Sets and/or gets size of the cache (in bytes) used for compressing repeate= dly +transferred memory pages during live migration. When called without I, +the command just prints current size of the compression cache. When I +is specified, the hypervisor is asked to change compression cache to I +bytes and then the current size is printed (the result may differ from the +requested size due to rounding done by the hypervisor). The I option +is supposed to be used while the domain is being live-migrated as a reacti= on +to migration progress and increasing number of compression cache misses +obtained from domjobinfo. + =3Ditem B I I =20 Set the maximum migration bandwidth (in MiB/s) for a domain which is being --=20 1.8.3.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list