From patchwork Thu Aug 2 12:44:45 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Orit Wasserman X-Patchwork-Id: 174748 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id AC0912C007D for ; Thu, 2 Aug 2012 22:45:33 +1000 (EST) Received: from localhost ([::1]:43522 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SwumR-0004hU-K6 for incoming@patchwork.ozlabs.org; Thu, 02 Aug 2012 08:45:31 -0400 Received: from eggs.gnu.org ([208.118.235.92]:33118) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Swum6-0004Le-IP for qemu-devel@nongnu.org; Thu, 02 Aug 2012 08:45:15 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Swuly-0006G9-R2 for qemu-devel@nongnu.org; Thu, 02 Aug 2012 08:45:10 -0400 Received: from mx1.redhat.com ([209.132.183.28]:34244) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Swuly-0006ER-Gm for qemu-devel@nongnu.org; Thu, 02 Aug 2012 08:45:02 -0400 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q72CiuOH006606 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 2 Aug 2012 08:44:56 -0400 Received: from dhcp-1-120.tlv.redhat.com (vpn-201-236.tlv.redhat.com [10.35.201.236]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id q72CiioA005603; Thu, 2 Aug 2012 08:44:52 -0400 From: Orit Wasserman To: qemu-devel@nongnu.org Date: Thu, 2 Aug 2012 15:44:45 +0300 Message-Id: <1343911494-7784-3-git-send-email-owasserm@redhat.com> In-Reply-To: <1343911494-7784-1-git-send-email-owasserm@redhat.com> References: <1343911494-7784-1-git-send-email-owasserm@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.12 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 209.132.183.28 Cc: peter.maydell@linaro.org, aliguori@us.ibm.com, quintela@redhat.com, stefanha@gmail.com, mdroth@linux.vnet.ibm.com, lcapitulino@redhat.com, blauwirbel@gmail.com, Orit Wasserman , chegu_vinod@hp.com, avi@redhat.com, pbonzini@redhat.com, eblake@redhat.com Subject: [Qemu-devel] [PATCH 02/11] Add migrate-set-capabilities and query-migrate-capabilities X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 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 The management can enable/disable a capability for the next migration by using migrate-set-apabilities QMP command. The management can query the current migration capabilities using query-migrate-capabilities QMP command. The user can use migrate_set_capability and 'info migrate_capabilities' HMP commands. Signed-off-by: Orit Wasserman Signed-off-by: Juan Quintela --- hmp-commands.hx | 16 +++++++++++++ hmp.c | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ hmp.h | 2 + migration.c | 46 ++++++++++++++++++++++++++++++++++++++ migration.h | 2 + monitor.c | 7 +++++ qapi-schema.json | 32 ++++++++++++++++++++++++++ qmp-commands.hx | 49 ++++++++++++++++++++++++++++++++++++++++ 8 files changed, 219 insertions(+), 0 deletions(-) diff --git a/hmp-commands.hx b/hmp-commands.hx index 8267237..f4c8495 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -861,6 +861,20 @@ Set maximum tolerated downtime (in seconds) for migration. ETEXI { + .name = "migrate_set_capability", + .args_type = "capability:s,state:b", + .params = "capability state", + .help = "Enable/Disable the usage of a capability for migration", + .mhandler.cmd = hmp_migrate_set_capability, + }, + +STEXI +@item migrate_set_capability @var{capability} @var{state} +@findex migrate_set_capability +Enable/Disable the usage of a capability @var{capability} for migration. +ETEXI + + { .name = "client_migrate_info", .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?", .params = "protocol hostname port tls-port cert-subject", @@ -1419,6 +1433,8 @@ show user network stack connection states show migration status @item info migration_supported_capabilities show migration supported capabilities +@item info migrate_capabilities +show current migration capabilities @item info balloon show balloon information @item info qtree diff --git a/hmp.c b/hmp.c index 2ff71a3..463b730 100644 --- a/hmp.c +++ b/hmp.c @@ -131,8 +131,21 @@ void hmp_info_mice(Monitor *mon) void hmp_info_migrate(Monitor *mon) { MigrationInfo *info; + MigrationCapabilityStatusList *caps, *cap; info = qmp_query_migrate(NULL); + caps = qmp_query_migrate_capabilities(NULL); + + /* do not display parameters during setup */ + if (info->has_status && caps) { + monitor_printf(mon, "capabilities: "); + for (cap = caps; cap; cap = cap->next) { + monitor_printf(mon, "%s: %s ", + MigrationCapability_lookup[cap->value->capability], + cap->value->state ? "on" : "off"); + } + monitor_printf(mon, "\n"); + } if (info->has_status) { monitor_printf(mon, "Migration status: %s\n", info->status); @@ -159,6 +172,7 @@ void hmp_info_migrate(Monitor *mon) } qapi_free_MigrationInfo(info); + qapi_free_MigrationCapabilityStatusList(caps); } void hmp_info_migration_supported_capabilities(Monitor *mon) @@ -182,6 +196,25 @@ void hmp_info_migration_supported_capabilities(Monitor *mon) qapi_free_MigrationCapabilityStatusList(caps_list); } +void hmp_info_migrate_capabilities(Monitor *mon) +{ + MigrationCapabilityStatusList *caps, *cap; + + caps = qmp_query_migrate_capabilities(NULL); + + if (caps) { + monitor_printf(mon, "capabilities: "); + for (cap = caps; cap; cap = cap->next) { + monitor_printf(mon, "%s: %s ", + MigrationCapability_lookup[cap->value->capability], + cap->value->state ? "on" : "off"); + } + monitor_printf(mon, "\n"); + } + + qapi_free_MigrationCapabilityStatusList(caps); +} + void hmp_info_cpus(Monitor *mon) { CpuInfoList *cpu_list, *cpu; @@ -756,6 +789,38 @@ void hmp_migrate_set_speed(Monitor *mon, const QDict *qdict) qmp_migrate_set_speed(value, NULL); } +void hmp_migrate_set_capability(Monitor *mon, const QDict *qdict) +{ + const char *cap = qdict_get_str(qdict, "capability"); + bool state = qdict_get_bool(qdict, "state"); + Error *err = NULL; + MigrationCapabilityStatusList *caps = g_malloc0(sizeof(*caps)); + int i; + + for (i = 0; i < MIGRATION_CAPABILITY_MAX; i++) { + if (strcmp(cap, MigrationCapability_lookup[i]) == 0) { + caps->value = g_malloc0(sizeof(*caps->value)); + caps->value->capability = i; + caps->value->state = state; + caps->next = NULL; + qmp_migrate_set_capabilities(caps, &err); + break; + } + } + + if (i == MIGRATION_CAPABILITY_MAX) { + error_set(&err, QERR_INVALID_PARAMETER, cap); + } + + qapi_free_MigrationCapabilityStatusList(caps); + + if (err) { + monitor_printf(mon, "migrate_set_parameter: %s\n", + error_get_pretty(err)); + error_free(err); + } +} + void hmp_set_password(Monitor *mon, const QDict *qdict) { const char *protocol = qdict_get_str(qdict, "protocol"); diff --git a/hmp.h b/hmp.h index 8442c22..f2a890f 100644 --- a/hmp.h +++ b/hmp.h @@ -26,6 +26,7 @@ void hmp_info_chardev(Monitor *mon); void hmp_info_mice(Monitor *mon); void hmp_info_migrate(Monitor *mon); void hmp_info_migration_supported_capabilities(Monitor *mon); +void hmp_info_migrate_capabilities(Monitor *mon); void hmp_info_cpus(Monitor *mon); void hmp_info_block(Monitor *mon); void hmp_info_blockstats(Monitor *mon); @@ -52,6 +53,7 @@ void hmp_snapshot_blkdev(Monitor *mon, const QDict *qdict); void hmp_migrate_cancel(Monitor *mon, const QDict *qdict); void hmp_migrate_set_downtime(Monitor *mon, const QDict *qdict); void hmp_migrate_set_speed(Monitor *mon, const QDict *qdict); +void hmp_migrate_set_capability(Monitor *mon, const QDict *qdict); void hmp_set_password(Monitor *mon, const QDict *qdict); void hmp_expire_password(Monitor *mon, const QDict *qdict); void hmp_eject(Monitor *mon, const QDict *qdict); diff --git a/migration.c b/migration.c index 35444f7..d1a8d3a 100644 --- a/migration.c +++ b/migration.c @@ -113,6 +113,30 @@ uint64_t migrate_max_downtime(void) return max_downtime; } +MigrationCapabilityStatusList *qmp_query_migrate_capabilities(Error **errp) +{ + MigrationCapabilityStatusList *head = NULL; + MigrationCapabilityStatusList *caps; + MigrationState *s = migrate_get_current(); + int i; + + for (i = 0; i < MIGRATION_CAPABILITY_MAX; i++) { + if (head == NULL) { + head = g_malloc0(sizeof(*caps)); + caps = head; + } else { + caps->next = g_malloc0(sizeof(*caps)); + caps = caps->next; + } + caps->value = + g_malloc(sizeof(*caps->value)); + caps->value->capability = i; + caps->value->state = s->enabled_capabilities[i]; + } + + return head; +} + MigrationInfo *qmp_query_migrate(Error **errp) { MigrationInfo *info = g_malloc0(sizeof(*info)); @@ -178,6 +202,22 @@ qmp_query_migration_supported_capabilities(Error **errp) return caps_list; } +void qmp_migrate_set_capabilities(MigrationCapabilityStatusList *params, + Error **errp) +{ + MigrationState *s = migrate_get_current(); + MigrationCapabilityStatusList *cap; + + if (s->state == MIG_STATE_ACTIVE) { + error_set(errp, QERR_MIGRATION_ACTIVE); + return; + } + + for (cap = params; cap; cap = cap->next) { + s->enabled_capabilities[cap->value->capability] = cap->value->state; + } +} + /* shared migration helpers */ static int migrate_fd_cleanup(MigrationState *s) @@ -387,10 +427,16 @@ static MigrationState *migrate_init(const MigrationParams *params) { MigrationState *s = migrate_get_current(); int64_t bandwidth_limit = s->bandwidth_limit; + bool enabled_capabilities[MIGRATION_CAPABILITY_MAX]; + + memcpy(enabled_capabilities, s->enabled_capabilities, + sizeof(enabled_capabilities)); memset(s, 0, sizeof(*s)); s->bandwidth_limit = bandwidth_limit; s->params = *params; + memcpy(s->enabled_capabilities, enabled_capabilities, + sizeof(enabled_capabilities)); s->bandwidth_limit = bandwidth_limit; s->state = MIG_STATE_SETUP; diff --git a/migration.h b/migration.h index 57572a6..713aae0 100644 --- a/migration.h +++ b/migration.h @@ -19,6 +19,7 @@ #include "notify.h" #include "error.h" #include "vmstate.h" +#include "qapi-types.h" struct MigrationParams { bool blk; @@ -39,6 +40,7 @@ struct MigrationState void *opaque; MigrationParams params; int64_t total_time; + bool enabled_capabilities[MIGRATION_CAPABILITY_MAX]; }; void process_incoming_migration(QEMUFile *f); diff --git a/monitor.c b/monitor.c index 43f7df5..58d6e2a 100644 --- a/monitor.c +++ b/monitor.c @@ -2669,6 +2669,13 @@ static mon_cmd_t info_cmds[] = { .mhandler.info = hmp_info_migration_supported_capabilities, }, { + .name = "migrate_capabilities", + .args_type = "", + .params = "", + .help = "show current migration capabilities", + .mhandler.info = hmp_info_migrate_capabilities, + }, + { .name = "balloon", .args_type = "", .params = "", diff --git a/qapi-schema.json b/qapi-schema.json index 68d0fbb..f38dfc6 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -345,6 +345,38 @@ { 'command': 'query-migration-supported-capabilities', 'returns': ['MigrationCapabilityStatus'] } ## +# @migrate-set-capabilities +# +# Enable/Disable the following migration capabilities (like xbzrle) +# +# Since: 1.2 +## +{ 'command': 'migrate-set-capabilities', + 'data': { 'capabilities': ['MigrationCapabilityStatus'] } } + +## +# @MigrationParameters +# +# @capabilities: @MigrationCapabilityStatus list contain current migration +# capabilities status +# Since: 1.2 +## +{ 'type': 'MigrationParameters', + 'data': {'capabilities': ['MigrationCapabilityStatus']} } + + +## +# @query-migrate-capabilities +# +# Returns information about the current migration capabilities status +# +# Returns: @MigrationCapabilitiesStatus +# +# Since: 1.2 +## +{ 'command': 'query-migrate-capabilities', 'returns': ['MigrationCapabilityStatus']} + +## # @MouseInfo: # # Information about a mouse device. diff --git a/qmp-commands.hx b/qmp-commands.hx index 16fbcef..e96a993 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -2166,6 +2166,55 @@ EQMP }, SQMP +migrate-set-capabilities +------- + +Enable/Disable migration capabilities + +- "xbzrle": xbzrle support + +Arguments: + +Example: + +-> { "execute": "migrate-set-capabilities" , "arguments": + { "capabilities": [ { "capability": "xbzrle", "state": true } ] } } + +EQMP + + { + .name = "migrate_set_capabilities", + .args_type = "capabilities:O", + .params = "capability:s,state:b", + .mhandler.cmd_new = qmp_marshal_input_migrate_set_capabilities, + }, +SQMP +query-migrate-capabilities +------- + +Query current migration capabilities + +- "capabilities": migration capabilities state + - "xbzrle" : XBZRLE state (json-bool) + +Arguments: + +Example: + +-> { "execute": "query-migrate-capabilities" } +<- { "return": { + "capabilities" : [ { "capability" : "xbzrle", "state" : false } ] + } + } +EQMP + + { + .name = "query-migrate-capabilities", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_migrate_capabilities, + }, + +SQMP query-balloon -------------