June 2011 - Devel - libvirt List Archives

[libvirt] libvirt(-java): virDomainMigrateSetMaxDowntime
by Thomas Treutner 15 Sep '11

15 Sep '11

Hi, I'm facing some troubles with virDomainMigrate & virDomainMigrateSetMaxDowntime. The core problem is that KVM's default value for the maximum allowed downtime is 30ms (max_downtime in migration.c, it's nanoseconds there; 0.12.3) which is too low for my VMs when they're busy (~50% CPU util and above). Migrations then take literally forever, I had to abort them after 15 minutes or so. I'm using GBit Ethernet, so plenty bandwidth should be available. Increasing the allowed downtime to 50ms seems to help, but I have not tested situations where the VM is completely utilized. Anyways, the default value is too low for me, so I tried virDomainMigrateSetMaxDowntime resp. the Java wrapper function. Here I'm facing a problem I can overcome only with a quite crude hack: org.libvirt.Domain.migrate(..) blocks until the migration is done, which is of course reasonable. So I tried calling migrateSetMaxDowntime(..) before migrating, causing an error: "Requested operation is not valid: domain is not being migrated" This tells me that calling migrateSetMaxDowntime is only allowed during migrations. As I'm migrating VMs automatically and without any user intervention I'd need to create some glue code that runs in an extra thread, waiting "some time" hoping that the migration was kicked off in the main thread yet and then calling migrateSetMaxDowntime. I'd like to avoid such quirks in the long run, if possible. So my question: Would it be possible to extend the migrate() method resp. virDomainMigrate() function with an optional maxDowntime parameter that is passed down as QEMU_JOB_SIGNAL_MIGRATE_DOWNTIME so that qemuDomainWaitForMigrationComplete would set the value? Or are there easier ways? Thanks and regards, -t

3 5

Re: [libvirt] migration of vnlink VMs
by Oved Ourfalli 05 Sep '11

05 Sep '11

----- Original Message ----- > From: "Laine Stump" <lstump(a)redhat.com> > To: "Oved Ourfalli" <ovedo(a)redhat.com> > Cc: "Ayal Baron" <abaron(a)redhat.com>, "Barak Azulay" <bazulay(a)redhat.com>, "Shahar Havivi" <shaharh(a)redhat.com>, > "Itamar Heim" <iheim(a)redhat.com>, "Dan Kenigsberg" <danken(a)redhat.com> > Sent: Thursday, April 28, 2011 10:20:35 AM > Subject: Re: migration of vnlink VMs > Oved, > > Would it be okay to repost this message to the thread on libvir-list > so > that other parties can add their thoughts? > Of course. I'm sending my answer to the libvirt list. > On 04/27/2011 09:58 AM, Oved Ourfalli wrote: > > Laine, hello. > > > > We read your proposal for abstraction of guest<--> host network > > connection in libvirt. > > > > You has an open issue there regarding the vepa/vnlink attributes: > > "3) What about the parameters in the<virtualport> element that are > > currently used by vepa/vnlink. Do those belong with the host, or > > with the guest?" > > > > The parameters for the virtualport element should be on the guest, > > and not the host, because a specific interface can run multiple > > profiles, > > Are you talking about host interface or guest interface? If you mean > that multiple different profiles can be used when connecting to a > particular switch - as long as there are only a few different > profiles, > rather than each guest having its own unique profile, then it still > seems better to have the port profile live with the network definition > (and just define multiple networks, one for each port profile). > The profile names can be changed regularly, so it looks like it will be better to put them in the guest level, so that the network host file won't have to be changed on all hosts once something has changed in the profiles. Also, you will have a duplication of data, writing all the profile name on all the hosts that are connected to the vn-link/vepa switch. > > > so it will be a mistake to define a profile to be interface > > specific on the host. Moreover, putting it in the guest level will > > enable us in the future (if supported by libvirt/qemu) to migrate > > a vm from a host with vepa/vnlink interfaces, to another host with > > a bridge, for example. > > It seems to me like doing exactly the opposite would make it easier to > migrate to a host that used a different kind of switching (from vepa > to > vnlink, or from a bridged interface to vepa, etc), since the port > profile required for a particular host's network would be at the host > waiting to be used. You are right, but we would want to have the option to prevent that from happening in case we wouldn't want to allow it. We can make the ability to migrate between different network types configurable, and we would like an easy way to tell libvirt - "please allow/don't allow it". > > > So, in the networks at the host level you will have: > > <network type='direct'> > > <name>red-network</name> > > <source mode='vepa'> > > <pool> > > <interface> > > <name>eth0</name> > > ..... > > </interface> > > <interface> > > <name>eth4</name> > > ..... > > </interface> > > <interface> > > <name>eth18</name> > > ..... > > </interface> > > </pool> > > </source> > > </network> > > > > And in the guest you will have (for vepa): > > <interface type='network'> > > <source network='red-network'/> > > <virtualport type="802.1Qbg"> > > <parameters managerid="11" typeid="1193047" typeidversion="2" > > instanceid="09b11c53-8b5c-4eeb-8f00-d84eaa0aaa4f"/> > > </virtualport> > > </interface> > > > > Or (for vnlink): > > <interface type='network'> > > <source network='red-network'/> > > <virtualport type="802.1Qbh"> > > <parameters profile_name="profile1"/> > > </virtualport> > > </interface> > > This illustrates the problem I was wondering about - in your example > it > would not be possible for the guest to migrate from the host using a > vepa switch to the host using a vnlink switch (and it would be > possible You are right. When trying to migrate between vepa and vnlink there will be missing attributes in each in case we leave it on the host. > to migrate to a host using a standard bridge only if the virtualport > element was ignored). If the virtualport element lived with the > network > definition of red-network on each host, it could be migrated without > problem. > > The only problematic thing would be if any of the attributes within > <parameters> was unique for each guest (I don't know anything about > the > individual attributes, but "instanceid" sounds like it might be > different for each guest). > > > Then, when migrating from a vepa/vnlink host to another vepa/vnlink > > host containing red-network, the profile attributes will be > > available at the guest domain xml. > > In case the target host has a red-network, which isn't vepa/vnlink, > > we want to be able to choose whether to make the use of the profile > > attributes optional (i.e., libvirt won't fail in case of migrating > > to a network of another type), or mandatory (i.e., libvirt will fail > > in case of migration to a non-vepa/vnlink network). > > > > We have something similar in CPU flags: > > <cpu match="exact"> > > <model>qemu64</model> > > <topology sockets="S" cores="C" threads="T"/> > > <feature policy="require/optional/disable......" > > name="sse2"/> > > </cpu> > > In this analogy, does "CPU flags" == "mode (vepa/vnlink/bridge)" or > does > "CPU flags" == "virtualport parameters" ? It seems like what you're > wanting can be satisfied by simply not defining "red-network" on the > hosts that don't have the proper networking setup available (maybe > what > you *really* want to call it is "red-vnlink-network"). What I meant to say in that is that we would like to have the ability to say if an attribute must me used, or not. The issues you mention are indeed interesting. I'm cc-ing libvirt-list to see what other people think. Putting it on the guest will indeed make it problematic to migrate between networks that need different parameters (vnlink/vepa for example). Oved

7 11

[libvirt] [BUG] Xen->libvirt: localtime reported as UTC
by Philipp Hahn 05 Sep '11

05 Sep '11

Hello, just a report, no fix for that bug yet. If I create a domain and set <clock offset='localtime'/>, that information is correctly translated to Xends sxpr data, but on reading it back I get it reported as 'utc': # virsh dumpxml 85664d3f-68dd-a4c2-4d2f-be7f276b95f0 | grep clock <clock offset='utc'/> # gfind localtime ./85664d3f-68dd-a4c2-4d2f-be7f276b95f0/config.sxp: (platform ((device_model /usr/lib64/xen/bin/qemu-dm) (localtime 1))) ./85664d3f-68dd-a4c2-4d2f-be7f276b95f0/config.sxp: (localtime 1) BYtE Philipp -- Philipp Hahn Open Source Software Engineer hahn(a)univention.de Univention GmbH Linux for Your Business fon: +49 421 22 232- 0 Mary-Somerville-Str.1 D-28359 Bremen fax: +49 421 22 232-99 http://www.univention.de/

3 6

[libvirt] [PATCH] add sendevent command and related APIs
by Lai Jiangshan 31 Aug '11

31 Aug '11

Enable libvirt send some events to the guest. This command currently only supports NMI and key events. Signed-off-by: Lai Jiangshan <laijs(a)cn.fujitsu.com> --- daemon/remote.c | 52 +++++++++++++++++++++ daemon/remote_dispatch_args.h | 2 daemon/remote_dispatch_prototypes.h | 16 ++++++ daemon/remote_dispatch_table.h | 10 ++++ include/libvirt/libvirt.h.in | 3 + src/driver.h | 7 ++ src/esx/esx_driver.c | 2 src/libvirt.c | 88 ++++++++++++++++++++++++++++++++++++ src/libvirt_public.syms | 2 src/libxl/libxl_driver.c | 2 src/lxc/lxc_driver.c | 2 src/openvz/openvz_driver.c | 2 src/phyp/phyp_driver.c | 4 + src/qemu/qemu_driver.c | 86 +++++++++++++++++++++++++++++++++++ src/qemu/qemu_monitor.c | 27 +++++++++++ src/qemu/qemu_monitor.h | 3 + src/qemu/qemu_monitor_json.c | 68 +++++++++++++++++++++++++++ src/qemu/qemu_monitor_json.h | 3 + src/qemu/qemu_monitor_text.c | 56 ++++++++++++++++++++++ src/qemu/qemu_monitor_text.h | 2 src/remote/remote_driver.c | 50 ++++++++++++++++++++ src/remote/remote_protocol.c | 22 +++++++++ src/remote/remote_protocol.h | 19 +++++++ src/remote/remote_protocol.x | 14 +++++ src/test/test_driver.c | 2 src/uml/uml_driver.c | 2 src/vbox/vbox_tmpl.c | 2 src/vmware/vmware_driver.c | 2 src/xen/xen_driver.c | 2 src/xenapi/xenapi_driver.c | 2 tools/virsh.c | 56 ++++++++++++++++++++++ 31 files changed, 608 insertions(+), 2 deletions(-) diff --git a/daemon/remote.c b/daemon/remote.c index 1700c2d..5f9e78a 100644 --- a/daemon/remote.c +++ b/daemon/remote.c @@ -2836,6 +2836,58 @@ remoteDispatchDomainGetBlkioParameters(struct qemud_server *server } static int +remoteDispatchDomainSendEventNMI(struct qemud_server *server ATTRIBUTE_UNUSED, + struct qemud_client *client ATTRIBUTE_UNUSED, + virConnectPtr conn, + remote_message_header *hdr ATTRIBUTE_UNUSED, + remote_error *rerr, + remote_domain_send_event_nmi_args *args, + void *ret ATTRIBUTE_UNUSED) +{ + virDomainPtr dom; + + dom = get_nonnull_domain(conn, args->dom); + if (dom == NULL) { + remoteDispatchConnError(rerr, conn); + return -1; + } + + if (virDomainSendEventNMI(dom, args->vcpu) == -1) { + virDomainFree(dom); + remoteDispatchConnError(rerr, conn); + return -1; + } + virDomainFree(dom); + return 0; +} + +static int +remoteDispatchDomainSendEventKey(struct qemud_server *server ATTRIBUTE_UNUSED, + struct qemud_client *client ATTRIBUTE_UNUSED, + virConnectPtr conn, + remote_message_header *hdr ATTRIBUTE_UNUSED, + remote_error *rerr, + remote_domain_send_event_key_args *args, + void *ret ATTRIBUTE_UNUSED) +{ + virDomainPtr dom; + + dom = get_nonnull_domain(conn, args->dom); + if (dom == NULL) { + remoteDispatchConnError(rerr, conn); + return -1; + } + + if (virDomainSendEventKey(dom, args->key) == -1) { + virDomainFree(dom); + remoteDispatchConnError(rerr, conn); + return -1; + } + virDomainFree(dom); + return 0; +} + +static int remoteDispatchDomainSetVcpus (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, diff --git a/daemon/remote_dispatch_args.h b/daemon/remote_dispatch_args.h index f9537d7..289a42e 100644 --- a/daemon/remote_dispatch_args.h +++ b/daemon/remote_dispatch_args.h @@ -178,3 +178,5 @@ remote_domain_migrate_set_max_speed_args val_remote_domain_migrate_set_max_speed_args; remote_storage_vol_upload_args val_remote_storage_vol_upload_args; remote_storage_vol_download_args val_remote_storage_vol_download_args; + remote_domain_send_event_nmi_args val_remote_domain_send_event_nmi_args; + remote_domain_send_event_key_args val_remote_domain_send_event_key_args; diff --git a/daemon/remote_dispatch_prototypes.h b/daemon/remote_dispatch_prototypes.h index 18bf41d..f920193 100644 --- a/daemon/remote_dispatch_prototypes.h +++ b/daemon/remote_dispatch_prototypes.h @@ -1618,3 +1618,19 @@ static int remoteDispatchSupportsFeature( remote_error *err, remote_supports_feature_args *args, remote_supports_feature_ret *ret); +static int remoteDispatchDomainSendEventNMI( + struct qemud_server *server, + struct qemud_client *client, + virConnectPtr conn, + remote_message_header *hdr, + remote_error *err, + remote_domain_send_event_nmi_args *args, + void *ret); +static int remoteDispatchDomainSendEventKey( + struct qemud_server *server, + struct qemud_client *client, + virConnectPtr conn, + remote_message_header *hdr, + remote_error *err, + remote_domain_send_event_key_args *args, + void *ret); diff --git a/daemon/remote_dispatch_table.h b/daemon/remote_dispatch_table.h index b39f7c2..a706b19 100644 --- a/daemon/remote_dispatch_table.h +++ b/daemon/remote_dispatch_table.h @@ -1052,3 +1052,13 @@ .args_filter = (xdrproc_t) xdr_remote_storage_vol_download_args, .ret_filter = (xdrproc_t) xdr_void, }, +{ /* DomainSendEventNmi => 210 */ + .fn = (dispatch_fn) remoteDispatchDomainSendEventNMI, + .args_filter = (xdrproc_t) xdr_remote_domain_send_event_nmi_args, + .ret_filter = (xdrproc_t) xdr_void, +}, +{ /* DomainSendEventKey => 211 */ + .fn = (dispatch_fn) remoteDispatchDomainSendEventKey, + .args_filter = (xdrproc_t) xdr_remote_domain_send_event_key_args, + .ret_filter = (xdrproc_t) xdr_void, +}, diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in index bd36015..adbe482 100644 --- a/include/libvirt/libvirt.h.in +++ b/include/libvirt/libvirt.h.in @@ -2517,6 +2517,9 @@ int virDomainOpenConsole(virDomainPtr dom, virStreamPtr st, unsigned int flags); +int virDomainSendEventNMI(virDomainPtr domain, unsigned int vcpu); +int virDomainSendEventKey(virDomainPtr domain, const char *key); + #ifdef __cplusplus } #endif diff --git a/src/driver.h b/src/driver.h index e5f91ca..6caf13f 100644 --- a/src/driver.h +++ b/src/driver.h @@ -515,6 +515,11 @@ typedef int virStreamPtr st, unsigned int flags); +typedef int + (*virDrvDomainSendEventNMI)(virDomainPtr dom, unsigned int vcpu); + +typedef int + (*virDrvDomainSendEventKey)(virDomainPtr dom, const char *key); /** * _virDriver: @@ -639,6 +644,8 @@ struct _virDriver { virDrvDomainSnapshotDelete domainSnapshotDelete; virDrvQemuDomainMonitorCommand qemuDomainMonitorCommand; virDrvDomainOpenConsole domainOpenConsole; + virDrvDomainSendEventNMI domainSendEventNMI; + virDrvDomainSendEventKey domainSendEventKey; }; typedef int diff --git a/src/esx/esx_driver.c b/src/esx/esx_driver.c index deda372..7167712 100644 --- a/src/esx/esx_driver.c +++ b/src/esx/esx_driver.c @@ -4675,6 +4675,8 @@ static virDriver esxDriver = { esxDomainSnapshotDelete, /* domainSnapshotDelete */ NULL, /* qemuDomainMonitorCommand */ NULL, /* domainOpenConsole */ + NULL, /* domainSendEventNMI */ + NULL, /* domainSendEventKey */ }; diff --git a/src/libvirt.c b/src/libvirt.c index 9bdb4c8..245247f 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -5245,6 +5245,94 @@ error: } /** + * virDomainSendEvnetNMI: + * @domain: pointer to domain object, or NULL for Domain0 + * @vcpu: the virtual CPU id to send NMI to + * + * Send NMI to a special vcpu of the guest + * + * Returns 0 in case of success, -1 in case of failure. + */ + +int virDomainSendEventNMI(virDomainPtr domain, unsigned int vcpu) +{ + virConnectPtr conn; + VIR_DOMAIN_DEBUG(domain, "vcpu=%u", vcpu); + + virResetLastError(); + + if (!VIR_IS_CONNECTED_DOMAIN(domain)) { + virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__); + virDispatchError(NULL); + return (-1); + } + if (domain->conn->flags & VIR_CONNECT_RO) { + virLibDomainError(VIR_ERR_OPERATION_DENIED, __FUNCTION__); + goto error; + } + + conn = domain->conn; + + if (conn->driver->domainSendEventNMI) { + int ret; + ret = conn->driver->domainSendEventNMI(domain, vcpu); + if (ret < 0) + goto error; + return ret; + } + + virLibConnError (VIR_ERR_NO_SUPPORT, __FUNCTION__); + +error: + virDispatchError(domain->conn); + return -1; +} + +/** + * virDomainSendEventKey: + * @domain: pointer to domain object, or NULL for Domain0 + * @key: the string of key or key sequence + * + * Send a special key or key sequence to the guest + * + * Returns 0 in case of success, -1 in case of failure. + */ + +int virDomainSendEventKey(virDomainPtr domain, const char *key) +{ + virConnectPtr conn; + VIR_DOMAIN_DEBUG(domain, "key=%s", key); + + virResetLastError(); + + if (!VIR_IS_CONNECTED_DOMAIN(domain)) { + virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__); + virDispatchError(NULL); + return (-1); + } + if (domain->conn->flags & VIR_CONNECT_RO) { + virLibDomainError(VIR_ERR_OPERATION_DENIED, __FUNCTION__); + goto error; + } + + conn = domain->conn; + + if (conn->driver->domainSendEventKey) { + int ret; + ret = conn->driver->domainSendEventKey(domain, key); + if (ret < 0) + goto error; + return ret; + } + + virLibConnError (VIR_ERR_NO_SUPPORT, __FUNCTION__); + +error: + virDispatchError(domain->conn); + return -1; +} + +/** * virDomainSetVcpus: * @domain: pointer to domain object, or NULL for Domain0 * @nvcpus: the new number of virtual CPUs for this domain diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms index b4aed41..cd0f474 100644 --- a/src/libvirt_public.syms +++ b/src/libvirt_public.syms @@ -434,6 +434,8 @@ LIBVIRT_0.9.0 { virEventRunDefaultImpl; virStorageVolDownload; virStorageVolUpload; + virDomainSendEventNMI; + virDomainSendEventKey; } LIBVIRT_0.8.8; # .... define new API here using predicted next version number .... diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c index e996ff6..040fc16 100644 --- a/src/libxl/libxl_driver.c +++ b/src/libxl/libxl_driver.c @@ -2353,6 +2353,8 @@ static virDriver libxlDriver = { NULL, /* domainSnapshotDelete */ NULL, /* qemuDomainMonitorCommand */ NULL, /* domainOpenConsole */ + NULL, /* domainSendEventNMI */ + NULL, /* domainSendEventKey */ }; static virStateDriver libxlStateDriver = { diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c index e905302..1284ab1 100644 --- a/src/lxc/lxc_driver.c +++ b/src/lxc/lxc_driver.c @@ -2906,6 +2906,8 @@ static virDriver lxcDriver = { NULL, /* domainSnapshotDelete */ NULL, /* qemuDomainMonitorCommand */ lxcDomainOpenConsole, /* domainOpenConsole */ + NULL, /* domainSendEventNMI */ + NULL, /* domainSendEventKey */ }; static virStateDriver lxcStateDriver = { diff --git a/src/openvz/openvz_driver.c b/src/openvz/openvz_driver.c index fb30c37..26ba0a5 100644 --- a/src/openvz/openvz_driver.c +++ b/src/openvz/openvz_driver.c @@ -1654,6 +1654,8 @@ static virDriver openvzDriver = { NULL, /* domainSnapshotDelete */ NULL, /* qemuDomainMonitorCommand */ NULL, /* domainOpenConsole */ + NULL, /* domainSendEventNMI */ + NULL, /* domainSendEventKey */ }; int openvzRegister(void) { diff --git a/src/phyp/phyp_driver.c b/src/phyp/phyp_driver.c index 51f9ff6..d5d0ea6 100644 --- a/src/phyp/phyp_driver.c +++ b/src/phyp/phyp_driver.c @@ -4054,7 +4054,9 @@ static virDriver phypDriver = { NULL, /* domainRevertToSnapshot */ NULL, /* domainSnapshotDelete */ NULL, /* qemuMonitorCommand */ - NULL, /* domainOpenConsole */ + NULL, /* domainOpenConsole */ + NULL, /* domainSendEventNMI */ + NULL, /* domainSendEventKey */ }; static virStorageDriver phypStorageDriver = { diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index dd12dc8..02af591 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -1659,6 +1659,90 @@ static int qemudDomainSetMemory(virDomainPtr dom, unsigned long newmem) { return qemudDomainSetMemoryFlags(dom, newmem, VIR_DOMAIN_MEM_LIVE); } +static int qemuDomainSendEventNMI(virDomainPtr domain, unsigned int vcpu) +{ + struct qemud_driver *driver = domain->conn->privateData; + virDomainObjPtr vm = NULL; + int ret = -1; + qemuDomainObjPrivatePtr priv; + + qemuDriverLock(driver); + vm = virDomainFindByUUID(&driver->domains, domain->uuid); + if (!vm) { + char uuidstr[VIR_UUID_STRING_BUFLEN]; + virUUIDFormat(domain->uuid, uuidstr); + qemuReportError(VIR_ERR_NO_DOMAIN, + _("no domain with matching uuid '%s'"), uuidstr); + goto cleanup; + } + + if (!virDomainObjIsActive(vm)) { + qemuReportError(VIR_ERR_OPERATION_INVALID, + "%s", _("domain is not running")); + goto cleanup; + } + + priv = vm->privateData; + + if (qemuDomainObjBeginJobWithDriver(driver, vm) < 0) + goto cleanup; + qemuDomainObjEnterMonitorWithDriver(driver, vm); + ret = qemuMonitorSendEventNMI(priv->mon, vcpu); + qemuDomainObjExitMonitorWithDriver(driver, vm); + if (qemuDomainObjEndJob(vm) == 0) { + vm = NULL; + goto cleanup; + } + +cleanup: + if (vm) + virDomainObjUnlock(vm); + qemuDriverUnlock(driver); + return ret; +} + +static int qemuDomainSendEventKey(virDomainPtr domain, const char *key) +{ + struct qemud_driver *driver = domain->conn->privateData; + virDomainObjPtr vm = NULL; + int ret = -1; + qemuDomainObjPrivatePtr priv; + + qemuDriverLock(driver); + vm = virDomainFindByUUID(&driver->domains, domain->uuid); + if (!vm) { + char uuidstr[VIR_UUID_STRING_BUFLEN]; + virUUIDFormat(domain->uuid, uuidstr); + qemuReportError(VIR_ERR_NO_DOMAIN, + _("no domain with matching uuid '%s'"), uuidstr); + goto cleanup; + } + + if (!virDomainObjIsActive(vm)) { + qemuReportError(VIR_ERR_OPERATION_INVALID, + "%s", _("domain is not running")); + goto cleanup; + } + + priv = vm->privateData; + + if (qemuDomainObjBeginJobWithDriver(driver, vm) < 0) + goto cleanup; + qemuDomainObjEnterMonitorWithDriver(driver, vm); + ret = qemuMonitorSendEventKey(priv->mon, key); + qemuDomainObjExitMonitorWithDriver(driver, vm); + if (qemuDomainObjEndJob(vm) == 0) { + vm = NULL; + goto cleanup; + } + +cleanup: + if (vm) + virDomainObjUnlock(vm); + qemuDriverUnlock(driver); + return ret; +} + static int qemudDomainGetInfo(virDomainPtr dom, virDomainInfoPtr info) { struct qemud_driver *driver = dom->conn->privateData; @@ -6923,6 +7007,8 @@ static virDriver qemuDriver = { qemuDomainSnapshotDelete, /* domainSnapshotDelete */ qemuDomainMonitorCommand, /* qemuDomainMonitorCommand */ qemuDomainOpenConsole, /* domainOpenConsole */ + qemuDomainSendEventNMI, /* domainSendEventNMI */ + qemuDomainSendEventKey, /* domainSendEventKey */ }; diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c index 2d28f8d..bc2e269 100644 --- a/src/qemu/qemu_monitor.c +++ b/src/qemu/qemu_monitor.c @@ -2228,3 +2228,30 @@ int qemuMonitorArbitraryCommand(qemuMonitorPtr mon, ret = qemuMonitorTextArbitraryCommand(mon, cmd, reply); return ret; } + + +int qemuMonitorSendEventNMI(qemuMonitorPtr mon, unsigned int vcpu) +{ + int ret; + + VIR_DEBUG("mon=%p, vcpu=%u", mon, vcpu); + + if (mon->json) + ret = qemuMonitorJSONSendEventNMI(mon, vcpu); + else + ret = qemuMonitorTextSendEventNMI(mon, vcpu); + return ret; +} + +int qemuMonitorSendEventKey(qemuMonitorPtr mon, const char *key) +{ + int ret; + + VIR_DEBUG("mon=%p, key sequence=%s", mon, key); + + if (mon->json) + ret = qemuMonitorJSONSendEventKey(mon, key); + else + ret = qemuMonitorTextSendEventKey(mon, key); + return ret; +} diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h index c90219b..fdc9859 100644 --- a/src/qemu/qemu_monitor.h +++ b/src/qemu/qemu_monitor.h @@ -423,6 +423,9 @@ int qemuMonitorArbitraryCommand(qemuMonitorPtr mon, char **reply, bool hmp); +int qemuMonitorSendEventNMI(qemuMonitorPtr mon, unsigned int vcpu); +int qemuMonitorSendEventKey(qemuMonitorPtr mon, const char *key); + /** * When running two dd process and using <> redirection, we need a * shell that will not truncate files. These two strings serve that diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index 20a78e1..5149d9e 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -2513,3 +2513,71 @@ cleanup: return ret; } + +int qemuMonitorJSONSendEventNMI(qemuMonitorPtr mon, unsigned int vcpu) +{ + int ret = -1; + virJSONValuePtr cmd; + virJSONValuePtr reply = NULL; + char *hmp_cmd; + + /* + * FIXME: qmp nmi is not supported until qemu-0.16.0, + * use human-monitor-command instead temporary. + */ + if (virAsprintf(&hmp_cmd, "nmi %u", vcpu) < 0) { + virReportOOMError(); + return -1; + } + + cmd = qemuMonitorJSONMakeCommand("human-monitor-command", + "s:command-line", hmp_cmd, + NULL); + if (!cmd) + goto out_free_hmp_cmd; + + ret = qemuMonitorJSONCommand(mon, cmd, &reply); + + if (ret == 0) + ret = qemuMonitorJSONCheckError(cmd, reply); + + virJSONValueFree(cmd); + virJSONValueFree(reply); +out_free_hmp_cmd: + VIR_FREE(hmp_cmd); + return ret; +} + +int qemuMonitorJSONSendEventKey(qemuMonitorPtr mon, const char *key_seq) +{ + int ret = -1; + virJSONValuePtr cmd; + virJSONValuePtr reply = NULL; + char *hmp_cmd; + + /* + * FIXME: qmp sendkey is not supported until qemu-0.16.0, + * use human-monitor-command instead temporary. + */ + if (virAsprintf(&hmp_cmd, "sendkey %s", key_seq) < 0) { + virReportOOMError(); + return -1; + } + + cmd = qemuMonitorJSONMakeCommand("human-monitor-command", + "s:command-line", hmp_cmd, + NULL); + if (!cmd) + goto out_free_hmp_cmd; + + ret = qemuMonitorJSONCommand(mon, cmd, &reply); + + if (ret == 0) + ret = qemuMonitorJSONCheckError(cmd, reply); + + virJSONValueFree(cmd); + virJSONValueFree(reply); +out_free_hmp_cmd: + VIR_FREE(hmp_cmd); + return ret; +} diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h index 086f0e1..dc206df 100644 --- a/src/qemu/qemu_monitor_json.h +++ b/src/qemu/qemu_monitor_json.h @@ -204,4 +204,7 @@ int qemuMonitorJSONArbitraryCommand(qemuMonitorPtr mon, char **reply_str, bool hmp); +int qemuMonitorJSONSendEventNMI(qemuMonitorPtr mon, unsigned int vcpu); +int qemuMonitorJSONSendEventKey(qemuMonitorPtr mon, const char *key); + #endif /* QEMU_MONITOR_JSON_H */ diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c index e0e3292..d3416a8 100644 --- a/src/qemu/qemu_monitor_text.c +++ b/src/qemu/qemu_monitor_text.c @@ -2627,3 +2627,59 @@ int qemuMonitorTextArbitraryCommand(qemuMonitorPtr mon, const char *cmd, return ret; } + +int qemuMonitorTextSendEventNMI(qemuMonitorPtr mon, unsigned int vcpu) +{ + char *cmd; + char *reply = NULL; + int ret = -1; + + if (virAsprintf(&cmd, "nmi %u", vcpu) < 0) { + virReportOOMError(); + return -1; + } + if (qemuMonitorTextArbitraryCommand(mon, cmd, &reply)) { + qemuReportError(VIR_ERR_OPERATION_FAILED, + _("failed to send NMI using command '%s'"), + cmd); + goto cleanup; + } + + ret = 0; + +cleanup: + VIR_FREE(cmd); + VIR_FREE(reply); + return ret; +} + +int qemuMonitorTextSendEventKey(qemuMonitorPtr mon, const char *key) +{ + char *cmd; + char *reply = NULL; + int ret = -1; + + if (virAsprintf(&cmd, "sendkey %s", key) < 0) { + virReportOOMError(); + return -1; + } + if (qemuMonitorTextArbitraryCommand(mon, cmd, &reply)) { + qemuReportError(VIR_ERR_OPERATION_FAILED, + _("failed to send key using command '%s'"), + cmd); + goto cleanup; + } + + if (strstr(reply, "unknown key") != NULL) { + qemuReportError(VIR_ERR_OPERATION_INVALID, "%s", + _("sent unknown key")); + goto cleanup; + } + + ret = 0; + +cleanup: + VIR_FREE(cmd); + VIR_FREE(reply); + return ret; +} diff --git a/src/qemu/qemu_monitor_text.h b/src/qemu/qemu_monitor_text.h index 0838a2b..4a03c40 100644 --- a/src/qemu/qemu_monitor_text.h +++ b/src/qemu/qemu_monitor_text.h @@ -198,4 +198,6 @@ int qemuMonitorTextDeleteSnapshot(qemuMonitorPtr mon, const char *name); int qemuMonitorTextArbitraryCommand(qemuMonitorPtr mon, const char *cmd, char **reply); +int qemuMonitorTextSendEventNMI(qemuMonitorPtr mon, unsigned int vcpu); +int qemuMonitorTextSendEventKey(qemuMonitorPtr mon, const char *key); #endif /* QEMU_MONITOR_TEXT_H */ diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c index bf94e70..676f473 100644 --- a/src/remote/remote_driver.c +++ b/src/remote/remote_driver.c @@ -2929,6 +2929,54 @@ done: } static int +remoteDomainSendEventNMI(virDomainPtr domain, unsigned int vcpu) +{ + int rv = -1; + remote_domain_send_event_nmi_args args; + struct private_data *priv = domain->conn->privateData; + + remoteDriverLock(priv); + + make_nonnull_domain (&args.dom, domain); + args.vcpu = vcpu; + + if (call (domain->conn, priv, 0, REMOTE_PROC_DOMAIN_SEND_EVENT_NMI, + (xdrproc_t) xdr_remote_domain_send_event_nmi_args, (char *) &args, + (xdrproc_t) xdr_void, (char *) NULL) == -1) + goto done; + + rv = 0; + +done: + remoteDriverUnlock(priv); + return rv; +} + +static int +remoteDomainSendEventKey(virDomainPtr domain, const char *key) +{ + int rv = -1; + remote_domain_send_event_key_args args; + struct private_data *priv = domain->conn->privateData; + + remoteDriverLock(priv); + + make_nonnull_domain (&args.dom, domain); + args.key = (char *)key; + + if (call (domain->conn, priv, 0, REMOTE_PROC_DOMAIN_SEND_EVENT_KEY, + (xdrproc_t) xdr_remote_domain_send_event_key_args, (char *) &args, + (xdrproc_t) xdr_void, (char *) NULL) == -1) + goto done; + + rv = 0; + +done: + remoteDriverUnlock(priv); + return rv; +} + +static int remoteDomainSetVcpus (virDomainPtr domain, unsigned int nvcpus) { int rv = -1; @@ -11296,6 +11344,8 @@ static virDriver remote_driver = { remoteDomainSnapshotDelete, /* domainSnapshotDelete */ remoteQemuDomainMonitorCommand, /* qemuDomainMonitorCommand */ remoteDomainOpenConsole, /* domainOpenConsole */ + remoteDomainSendEventNMI, /* domainSendEventNMI */ + remoteDomainSendEventKey, /* domainSendEventKey */ }; static virNetworkDriver network_driver = { diff --git a/src/remote/remote_protocol.c b/src/remote/remote_protocol.c index 5604371..a829219 100644 --- a/src/remote/remote_protocol.c +++ b/src/remote/remote_protocol.c @@ -1463,6 +1463,28 @@ xdr_remote_domain_undefine_args (XDR *xdrs, remote_domain_undefine_args *objp) } bool_t +xdr_remote_domain_send_event_nmi_args (XDR *xdrs, remote_domain_send_event_nmi_args *objp) +{ + + if (!xdr_remote_nonnull_domain (xdrs, &objp->dom)) + return FALSE; + if (!xdr_u_int (xdrs, &objp->vcpu)) + return FALSE; + return TRUE; +} + +bool_t +xdr_remote_domain_send_event_key_args (XDR *xdrs, remote_domain_send_event_key_args *objp) +{ + + if (!xdr_remote_nonnull_domain (xdrs, &objp->dom)) + return FALSE; + if (!xdr_remote_nonnull_string (xdrs, &objp->key)) + return FALSE; + return TRUE; +} + +bool_t xdr_remote_domain_set_vcpus_args (XDR *xdrs, remote_domain_set_vcpus_args *objp) { diff --git a/src/remote/remote_protocol.h b/src/remote/remote_protocol.h index d9bf151..027ef88 100644 --- a/src/remote/remote_protocol.h +++ b/src/remote/remote_protocol.h @@ -2200,6 +2200,19 @@ struct remote_storage_vol_download_args { u_int flags; }; typedef struct remote_storage_vol_download_args remote_storage_vol_download_args; + +struct remote_domain_send_event_nmi_args { + remote_nonnull_domain dom; + u_int vcpu; +}; +typedef struct remote_domain_send_event_nmi_args remote_domain_send_event_nmi_args; + +struct remote_domain_send_event_key_args { + remote_nonnull_domain dom; + remote_nonnull_string key; +}; +typedef struct remote_domain_send_event_key_args remote_domain_send_event_key_args; + #define REMOTE_PROGRAM 0x20008086 #define REMOTE_PROTOCOL_VERSION 1 @@ -2413,6 +2426,8 @@ enum remote_procedure { REMOTE_PROC_DOMAIN_MIGRATE_SET_MAX_SPEED = 207, REMOTE_PROC_STORAGE_VOL_UPLOAD = 208, REMOTE_PROC_STORAGE_VOL_DOWNLOAD = 209, + REMOTE_PROC_DOMAIN_SEND_EVENT_NMI = 210, + REMOTE_PROC_DOMAIN_SEND_EVENT_KEY = 211, }; typedef enum remote_procedure remote_procedure; @@ -2561,6 +2576,8 @@ extern bool_t xdr_remote_domain_create_with_flags_ret (XDR *, remote_domain_cre extern bool_t xdr_remote_domain_define_xml_args (XDR *, remote_domain_define_xml_args*); extern bool_t xdr_remote_domain_define_xml_ret (XDR *, remote_domain_define_xml_ret*); extern bool_t xdr_remote_domain_undefine_args (XDR *, remote_domain_undefine_args*); +extern bool_t xdr_remote_domain_send_event_nmi_args (XDR *, remote_domain_send_event_nmi_args*); +extern bool_t xdr_remote_domain_send_event_key_args (XDR *, remote_domain_send_event_key_args*); extern bool_t xdr_remote_domain_set_vcpus_args (XDR *, remote_domain_set_vcpus_args*); extern bool_t xdr_remote_domain_set_vcpus_flags_args (XDR *, remote_domain_set_vcpus_flags_args*); extern bool_t xdr_remote_domain_get_vcpus_flags_args (XDR *, remote_domain_get_vcpus_flags_args*); @@ -2918,6 +2935,8 @@ extern bool_t xdr_remote_domain_create_with_flags_ret (); extern bool_t xdr_remote_domain_define_xml_args (); extern bool_t xdr_remote_domain_define_xml_ret (); extern bool_t xdr_remote_domain_undefine_args (); +extern bool_t xdr_remote_domain_send_event_nmi_args (); +extern bool_t xdr_remote_domain_send_event_key_args (); extern bool_t xdr_remote_domain_set_vcpus_args (); extern bool_t xdr_remote_domain_set_vcpus_flags_args (); extern bool_t xdr_remote_domain_get_vcpus_flags_args (); diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x index 675eccd..34600d7 100644 --- a/src/remote/remote_protocol.x +++ b/src/remote/remote_protocol.x @@ -817,6 +817,16 @@ struct remote_domain_undefine_args { remote_nonnull_domain dom; }; +struct remote_domain_send_event_nmi_args { + remote_nonnull_domain dom; + unsigned int vcpu; +}; + +struct remote_domain_send_event_key_args { + remote_nonnull_domain dom; + remote_nonnull_string key; +}; + struct remote_domain_set_vcpus_args { remote_nonnull_domain dom; int nvcpus; @@ -2176,8 +2186,10 @@ enum remote_procedure { REMOTE_PROC_DOMAIN_GET_BLKIO_PARAMETERS = 206, REMOTE_PROC_DOMAIN_MIGRATE_SET_MAX_SPEED = 207, REMOTE_PROC_STORAGE_VOL_UPLOAD = 208, - REMOTE_PROC_STORAGE_VOL_DOWNLOAD = 209 + REMOTE_PROC_STORAGE_VOL_DOWNLOAD = 209, + REMOTE_PROC_DOMAIN_SEND_EVENT_NMI = 210, + REMOTE_PROC_DOMAIN_SEND_EVENT_KEY = 211, /* * Notice how the entries are grouped in sets of 10 ? * Nice isn't it. Please keep it this way when adding more. diff --git a/src/test/test_driver.c b/src/test/test_driver.c index 17f5ad9..2163850 100644 --- a/src/test/test_driver.c +++ b/src/test/test_driver.c @@ -5447,6 +5447,8 @@ static virDriver testDriver = { NULL, /* domainSnapshotDelete */ NULL, /* qemuDomainMonitorCommand */ NULL, /* domainOpenConsole */ + NULL, /* domainSendEventNMI */ + NULL, /* domainSendEventKey */ }; static virNetworkDriver testNetworkDriver = { diff --git a/src/uml/uml_driver.c b/src/uml/uml_driver.c index e2bd5f2..756877d 100644 --- a/src/uml/uml_driver.c +++ b/src/uml/uml_driver.c @@ -2249,6 +2249,8 @@ static virDriver umlDriver = { NULL, /* domainSnapshotDelete */ NULL, /* qemuDomainMonitorCommand */ umlDomainOpenConsole, /* domainOpenConsole */ + NULL, /* domainSendEventNMI */ + NULL, /* domainSendEventKey */ }; static int diff --git a/src/vbox/vbox_tmpl.c b/src/vbox/vbox_tmpl.c index 8bd27dd..73c5c87 100644 --- a/src/vbox/vbox_tmpl.c +++ b/src/vbox/vbox_tmpl.c @@ -8647,6 +8647,8 @@ virDriver NAME(Driver) = { vboxDomainSnapshotDelete, /* domainSnapshotDelete */ NULL, /* qemuDomainMonitorCommand */ NULL, /* domainOpenConsole */ + NULL, /* domainSendEventNMI */ + NULL, /* domainSendEventKey */ }; virNetworkDriver NAME(NetworkDriver) = { diff --git a/src/vmware/vmware_driver.c b/src/vmware/vmware_driver.c index b5e416b..eb64087 100644 --- a/src/vmware/vmware_driver.c +++ b/src/vmware/vmware_driver.c @@ -1007,6 +1007,8 @@ static virDriver vmwareDriver = { NULL, /* domainSnapshotDelete */ NULL, /* qemuDomainMonitorCommand */ NULL, /* domainOpenConsole */ + NULL, /* domainSendEventNMI */ + NULL, /* domainSendEventKey */ }; int diff --git a/src/xen/xen_driver.c b/src/xen/xen_driver.c index 9f47722..bd82001 100644 --- a/src/xen/xen_driver.c +++ b/src/xen/xen_driver.c @@ -2141,6 +2141,8 @@ static virDriver xenUnifiedDriver = { NULL, /* domainSnapshotDelete */ NULL, /* qemuDomainMonitorCommand */ xenUnifiedDomainOpenConsole, /* domainOpenConsole */ + NULL, /* domainSendEventNMI */ + NULL, /* domainSendEventKey */ }; /** diff --git a/src/xenapi/xenapi_driver.c b/src/xenapi/xenapi_driver.c index 27206a0..0f85ad8 100644 --- a/src/xenapi/xenapi_driver.c +++ b/src/xenapi/xenapi_driver.c @@ -1885,6 +1885,8 @@ static virDriver xenapiDriver = { NULL, /* domainSnapshotDelete */ NULL, /* qemuDomainMonitorCommand */ NULL, /* domainOpenConsole */ + NULL, /* domainSendEventNMI */ + NULL, /* domainSendEventKey */ }; /** diff --git a/tools/virsh.c b/tools/virsh.c index faeaf47..0b78c6d 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -2910,6 +2910,61 @@ cmdSetvcpus(vshControl *ctl, const vshCmd *cmd) } /* + * "sendevent" command + */ +static const vshCmdInfo info_sendevent[] = { + {"help", N_("send events to the guest")}, + {"desc", N_("Send events (NMI or Keys) to the guest domain.")}, + {NULL, NULL} +}; + +static const vshCmdOptDef opts_sendevent[] = { + {"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")}, + {"eventtype", VSH_OT_DATA, VSH_OFLAG_REQ, N_("the type of event (nmi or key)")}, + {"eventcontent", VSH_OT_DATA, VSH_OFLAG_REQ, N_("content for the event.")}, + {NULL, 0, 0, NULL} +}; + + +static int +cmdSendEvent(vshControl *ctl, const vshCmd *cmd) +{ + virDomainPtr dom; + const char *type; + int ret = TRUE; + + if (!vshConnectionUsability(ctl, ctl->conn)) + return FALSE; + + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) + return FALSE; + + if (vshCommandOptString(cmd, "eventtype", &type) < 0) + return FALSE; + + if (STREQ(type, "nmi")) { + int cpu; + + if ((vshCommandOptInt(cmd, "eventcontent", &cpu) < 0) + || (virDomainSendEventNMI(dom, cpu) < 0)) + ret = FALSE; + } else if (STREQ(type, "key")) { + const char *key; + + if ((vshCommandOptString(cmd, "eventcontent", &key) < 0) + || (virDomainSendEventKey(dom, key) < 0)) + ret = FALSE; + } else { + virDomainFree(dom); + vshError(ctl, _("Invalid event type: %s, only \"nmi\" or \"key\" supported currently."), type); + return FALSE; + } + + virDomainFree(dom); + return ret; +} + +/* * "setmemory" command */ static const vshCmdInfo info_setmem[] = { @@ -10693,6 +10748,7 @@ static const vshCmdDef domManagementCmds[] = { {"setmaxmem", cmdSetmaxmem, opts_setmaxmem, info_setmaxmem}, {"setmem", cmdSetmem, opts_setmem, info_setmem}, {"setvcpus", cmdSetvcpus, opts_setvcpus, info_setvcpus}, + {"sendevent", cmdSendEvent, opts_sendevent, info_sendevent}, {"shutdown", cmdShutdown, opts_shutdown, info_shutdown}, {"start", cmdStart, opts_start, info_start}, {"suspend", cmdSuspend, opts_suspend, info_suspend},

7 114

[libvirt] [PATCH 0/3] Enable automatic kill of running guests
by Daniel P. Berrange 26 Aug '11

26 Aug '11

I am building an application which uses KVM to run specific tasks, rather than as a general purpose guest OS. I want to ensure that when the app exits, the guest goes away too. To enable this, this series introduces the concept of 'autokill', whereby a guest is forcably destroyed when the virConnectPtr that launched it closes. This also lets us fix a long standing problem with migration leaving an unkillable guest

3 13

[libvirt] snapshots += domain description?
by Philipp Hahn 15 Aug '11

15 Aug '11

Hello, I just encountered a problem with the current snapshot implementation for qemu/kvm: To revert back to a snapshot, the domain description must closely match the domain description when the snapshot was created. If the ram-size doesn't match or the VM now contains fewer CPUs or contains additional disks, kvm will either not load the snapshot or the machine will be broken afterwarts. Is this a known problem? Without looking into the implementation details I think saving the full domain description instead of just a reference to the domain uuid as part of the snapshot description would work better. Or am I supposed to save the domain description myself in addition the the data saved in /var/lib/libvirt/qemu/snapshot/$DOMAIN_NAME/$SNAPSHOT_NAME.xml. I think this is very important feature, because when you - for example - notice that you need additional disk space and would like to include an additional block device, this is your ideal time to take a snapshot you can revert to when you do something wrong. Looking at VMware I see that reverting a VM there will not only revert the disks and ram back to the saved state, but also the description including name, ram size, etc. Any comment or advise is appreciated. Sincerely Philipp Hahn -- Philipp Hahn Open Source Software Engineer hahn(a)univention.de Univention GmbH Linux for Your Business fon: +49 421 22 232- 0 Mary-Somerville-Str.1 28359 Bremen fax: +49 421 22 232-99 http://www.univention.de

2 13

[libvirt] Is there smt missing at Java bindings?
by kadir yüceer 10 Aug '11

10 Aug '11

Hello all, I've been posting questions about my issue to the user list but it seems nobody can answer, so I had to try this list, sorry if there is any disturbance. Here is the case: I've been trying to develop a java app that can register callbacks for domain lifecycle events(suspend,resume,etc.). Only method that I've seen is Connect.VirDomainEventRegisterAny, and there is an abstract callback method inside VirConnectDomainEventGenericCallback. I implement the callback, and register it for all the domains by passing the domain pointer as NULL. Additionally for testing, I've added a println into the suspend function in org.libvirt.Domain.java, and compiled the java bindings and used the new jar file, and I was successful, I can see the message whenever I suspend the domain either by clicking *pause* or by writing dom.suspend() in my java app. However, when I try to register a callback as I mentioned in the beginning (with eventID 0, which is life_cycle ID), after the suspend operation, I get the error that you can see at the end of the mail. But before you check it out, I have to ask, are some of the event-related features of libvirt missing in java bindings? For example; VirEventAddHandleFunc, VirEventAddHandleCallback, and their derivatives. Is this a problem or the only Connect.VirDomainEventRegisterAny method of java binding suffice for providing callbacks for domain events? Thanks in advance for your responses. The error is below. Kind Regards Kadir # # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x00000000, pid=5692, tid=3077520240 # # JRE version: 6.0_20-b20 # Java VM: OpenJDK Server VM (19.0-b09 mixed mode linux-x86 ) # Derivative: IcedTea6 1.9.7 # Distribution: Ubuntu 10.10, package 6b20-1.9.7-0ubuntu1 # Problematic frame: # C 0x00000000 # # An error report file with more information is saved as: # /root/NetBeansProjects/NovaTest_v0.3/hs_err_pid5692.log # # If you would like to submit a bug report, please include # instructions how to reproduce the bug and visit: # https://bugs.launchpad.net/ubuntu/+source/openjdk-6/ # The crash happened outside the Java Virtual Machine in native code. # See problematic frame for where to report the bug. # Java Result: 134

2 2

[libvirt] [PATCH] qemu: Fix -chardev udp if parameters are omitted
by Cole Robinson 10 Aug '11

10 Aug '11

The following XML: <serial type='udp'> <source mode='connect' service='9999'/> </serial> is accepted by domain_conf.c but maps to the qemu command line: -chardev udp,host=127.0.0.1,port=2222,localaddr=(null),localport=(null) qemu can cope with everything omitting except the connection port, which seems to also be the intent of domain_conf validation, so let's not generate bogus command lines for that case. Additionally, tweak the qemu cli parsing to handle omitted host parameters for -serial udp --- src/qemu/qemu_command.c | 48 +++++++++++--------- .../qemuxml2argv-serial-udp-chardev.args | 6 ++- .../qemuxml2argv-serial-udp-chardev.xml | 4 ++ .../qemuxml2argvdata/qemuxml2argv-serial-udp.args | 2 +- tests/qemuxml2argvdata/qemuxml2argv-serial-udp.xml | 4 ++ 5 files changed, 39 insertions(+), 25 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index c9b9850..231d7c3 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -2119,14 +2119,17 @@ qemuBuildChrChardevStr(virDomainChrSourceDefPtr dev, const char *alias, break; case VIR_DOMAIN_CHR_TYPE_UDP: - virBufferVSprintf(&buf, - "udp,id=char%s,host=%s,port=%s,localaddr=%s," - "localport=%s", + virBufferVSprintf(&buf, "udp,id=char%s,port=%s", alias, - dev->data.udp.connectHost, - dev->data.udp.connectService, - dev->data.udp.bindHost, - dev->data.udp.bindService); + dev->data.udp.connectService); + + if (dev->data.udp.connectHost) + virBufferVSprintf(&buf, ",host=%s", dev->data.udp.connectHost); + if (dev->data.udp.bindHost) + virBufferVSprintf(&buf, ",localaddr=%s", dev->data.udp.bindHost); + if (dev->data.udp.bindService) + virBufferVSprintf(&buf, ",localport=%s", + dev->data.udp.bindService); break; case VIR_DOMAIN_CHR_TYPE_TCP: @@ -2216,11 +2219,13 @@ qemuBuildChrArgStr(virDomainChrSourceDefPtr dev, const char *prefix) break; case VIR_DOMAIN_CHR_TYPE_UDP: - virBufferVSprintf(&buf, "udp:%s:%s@%s:%s", - dev->data.udp.connectHost, - dev->data.udp.connectService, - dev->data.udp.bindHost, - dev->data.udp.bindService); + virBufferVSprintf(&buf, "udp:%s:%s", + dev->data.udp.connectHost ?: "", + dev->data.udp.connectService); + if (dev->data.udp.bindService) + virBufferVSprintf(&buf, "@%s:%s", + dev->data.udp.bindHost ?: "", + dev->data.udp.bindService); break; case VIR_DOMAIN_CHR_TYPE_TCP: @@ -5302,13 +5307,12 @@ qemuParseCommandLineChr(const char *val) host2 = svc1 ? strchr(svc1, '@') : NULL; svc2 = host2 ? strchr(host2, ':') : NULL; - if (svc1) + if (svc1 && (svc1 != val)) { def->source.data.udp.connectHost = strndup(val, svc1-val); - else - def->source.data.udp.connectHost = strdup(val); - if (!def->source.data.udp.connectHost) - goto no_memory; + if (!def->source.data.udp.connectHost) + goto no_memory; + } if (svc1) { svc1++; @@ -5323,14 +5327,14 @@ qemuParseCommandLineChr(const char *val) if (host2) { host2++; - if (svc2) + if (svc2 && (svc2 != host2)) { def->source.data.udp.bindHost = strndup(host2, svc2-host2); - else - def->source.data.udp.bindHost = strdup(host2); - if (!def->source.data.udp.bindHost) - goto no_memory; + if (!def->source.data.udp.bindHost) + goto no_memory; + } } + if (svc2) { svc2++; def->source.data.udp.bindService = strdup(svc2); diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.args index 7525110..8c6a6d5 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.args @@ -2,6 +2,8 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M \ pc -m 214 -smp 1 -nographic -nodefconfig -nodefaults -chardev socket,\ id=charmonitor,path=/tmp/test-monitor,server,nowait -mon chardev=charmonitor,\ id=monitor,mode=readline -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -chardev \ -udp,id=charserial0,host=127.0.0.1,port=9998,localaddr=127.0.0.1,localport=9999 \ --device isa-serial,chardev=charserial0,id=serial0 -usb -device \ +udp,id=charserial0,port=9998,host=127.0.0.1,localaddr=127.0.0.1,localport=9999 \ +-device isa-serial,chardev=charserial0,id=serial0 \ +-chardev udp,id=charserial1,port=9999 \ +-device isa-serial,chardev=charserial1,id=serial1 -usb -device \ virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.xml index 12622d4..9627c67 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp-chardev.xml @@ -25,6 +25,10 @@ <source mode='connect' host='127.0.0.1' service='9998'/> <target port='0'/> </serial> + <serial type='udp'> + <source mode='connect' service='9999'/> + <target port='1'/> + </serial> <console type='udp'> <source mode='bind' host='127.0.0.1' service='9999'/> <source mode='connect' host='127.0.0.1' service='9998'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-udp.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp.args index 53c69bc..cf25fe0 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-serial-udp.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp.args @@ -1,4 +1,4 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M \ pc -m 214 -smp 1 -nographic -monitor unix:/tmp/test-monitor,server,nowait \ -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -serial \ -udp:127.0.0.1:9998@127.0.0.1:9999 -parallel none -usb +udp:127.0.0.1:9998@127.0.0.1:9999 -serial udp::9999 -parallel none -usb diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-udp.xml b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp.xml index 8697f5a..f606ea4 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-serial-udp.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-udp.xml @@ -25,6 +25,10 @@ <source mode='connect' host='127.0.0.1' service='9998'/> <target port='0'/> </serial> + <serial type='udp'> + <source mode='connect' service='9999'/> + <target port='1'/> + </serial> <console type='udp'> <source mode='bind' host='127.0.0.1' service='9999'/> <source mode='connect' host='127.0.0.1' service='9998'/> -- 1.7.4

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[libvirt] [BUG] Re: [2/6] loadvm: improve tests before bdrv_snapshot_goto()
by Philipp Hahn 09 Aug '11

09 Aug '11

Hello, Am Dienstag 03 August 2010 06:44:26 schrieb Kevin Wolf: > From: Miguel Di Ciurcio Filho <miguel.filho(a)gmail.com> > > This patch improves the resilience of the load_vmstate() function, doing > further and better ordered tests. This patch broke restoring not-running VMs using libvirt-0.8.7 with qemu-0.14: When the domain is not running while taking a snpshot, the sn.vm_state_size == 0: 2021 } else if (sn.vm_state_size == 0) { (gdb) print sn $6 = {id_str = "1", '\0' <repeats 126 times>, name = "pre-update-flash", '\0' <repeats 239 times>, vm_state_size = 0, date_sec = 1302698007, date_nsec = 711909000, vm_clock_nsec = 0} > The [old] process: ... > - run bdrv_snapshot_goto() on devices > - if fails, give an warning and goes to the next (not good!) > - if fails on the VM state device, return zero (not good!) > - check if the requested snapshot exists on the device that saves the VM > state and the state is not zero > - if fails return -error Previously the qcow2 image was still reverted to the old state, so on the next start of the domain the qcow2 image would be in the state of the snapshot > New behavior: ... > - check if the requested snapshot exists on the device that saves the VM > state and the state is not zero > - if fails return -error ... > - run snapshot_goto() on devices Now the qcow2 image is not reverted and when the domain is started, it is NOT in the state of the snapshot. I can't decide if this regression is an Qemu bug or libvirt should be adapted to this new behavior. I found the Bug also reported with Ubuntu and created a Bug in our own German bugtracker: <https://bugs.launchpad.net/qemu/+bug/726619> <https://forge.univention.org/bugzilla/show_bug.cgi?id=22221> Sincerely Philipp Hahn -- Philipp Hahn Open Source Software Engineer hahn(a)univention.de Univention GmbH Linux for Your Business fon: +49 421 22 232- 0 Mary-Somerville-Str.1 D-28359 Bremen fax: +49 421 22 232-99 http://www.univention.de/

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[libvirt] [PATCH] freebsd: Fix build problem due to picking up the wrong libvirt.h
by Matthias Bolte 28 Jul '11

28 Jul '11

AM_GNU_GETTEXT calls AM_ICONV_LINK. AM_ICONV_LINK saves and alters CPPFLAGS, but doesn't restore it when it finds libiconv. This results in /usr/local/include ending up in the gcc command line before the include path for the local include directory. This makes gcc pick a previous installed libvirt.h instead of the correct one from the source tree. Workaround this problem by saving and restoring CPPFLAGS around the AM_GNU_GETTEXT call. --- configure.ac | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/configure.ac b/configure.ac index b2ba930..8f46dbd 100644 --- a/configure.ac +++ b/configure.ac @@ -2011,8 +2011,16 @@ dnl Enable building libvirtd? AM_CONDITIONAL([WITH_LIBVIRTD],[test "x$with_libvirtd" = "xyes"]) dnl Check for gettext - don't go any newer than what RHEL 5 supports +dnl +dnl save and restore CPPFLAGS around gettext check as the internal iconv +dnl check might leave -I/usr/local/include in CPPFLAGS on FreeBSD resulting +dnl in the build picking up previously installed libvirt/libvirt.h instead +dnl of the correct one from the soucre tree + +save_CPPFLAGS="$CPPFLAGS" AM_GNU_GETTEXT_VERSION([0.17]) AM_GNU_GETTEXT([external]) +CPPFLAGS="$save_CPPFLAGS" ALL_LINGUAS=`cd "$srcdir/po" > /dev/null && ls *.po | sed 's+\.po$++'` -- 1.7.0.4

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