November 2014 - Devel - libvirt List Archives

[libvirt] Libvirt Live Migration
by Dhia Abbassi 20 Nov '14

20 Nov '14

I'm trying to implement a virtualization API. I was testing migration with libvirt I got some problems. When I use the following command : *virsh migrate --live --persistent --copy-storage-all vm-clone1 qemu+ssh://server_ip/system* the migration works fine but in the destination host the migrated vm is paused and I can't unpause it and I need to reboot the vm to be able use it in the new host. When I try to unoause it Igot the following error message: << *Error unpausing domain: internal error: unable to execute QEMU command 'cont': Resetting the Virtual Machine is required *>> How can I solve this problem, or is there an other way to make a live migration with libvirt?? Thank you for you consideration. -- Best regards *Dhia Abbassi* Full Stack Engineer | Rosafi Holding <http://tn.linkedin.com/in/dhiaabbassi> <https://github.com/DhiaTN> <https://plus.google.com/u/0/+DhiaAbbassi> <https://twitter.com/DhiaTN>

1 0

[libvirt] [PATCH v4] leaseshelper: improvements to support all events
by Nehal J Wani 20 Nov '14

20 Nov '14

This patch enables the helper program to detect event(s) triggered when there is a change in lease length or expiry and client-id. This transfers complete control of leases database to libvirt and obsoletes use of the lease database file (<network-name>.leases). That file will not be created, read, or written. This is achieved by adding the option --leasefile-ro to dnsmasq and passing a custom env var to leaseshelper, which helps us map events related to leases with their corresponding network bridges, no matter what the event be. Also, this requires the addition of a new non-lease entry in our custom lease database: "server-duid". It is required to identify a DHCPv6 server. Now that dnsmasq doesn't maintain its own leases database, it relies on our helper program to tell it about previous leases and server duid. Thus, this patch makes our leases program honor an extra action: "init", in which it sends the known info in a particular format to dnsmasq by printing it to stdout. --- This is compatible with libvirt 1.2.6 as only additions have been introduced, and the old leases file (*.status) will still be supported. v4: * Removed extra data structures for segregating ipv4 and ipv6 leases. v3: * Add server-duid as an entry in the lease object for every ipv6 lease. * Remove unnecessary variables and double copies. * Take value from DNSMASQ_OLD_HOSTNAME if hostname is not known. http://www.redhat.com/archives/libvir-list/2014-August/msg00028.html v2: http://www.redhat.com/archives/libvir-list/2014-July/msg01109.html v1: https://www.redhat.com/archives/libvir-list/2014-July/msg00568.html --- src/network/bridge_driver.c | 3 + src/network/leaseshelper.c | 142 +++++++++++++++++++++++++++++++++++--------- 2 files changed, 117 insertions(+), 28 deletions(-) diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index 6cb421c..6ecbc37 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -1280,7 +1280,10 @@ networkBuildDhcpDaemonCommandLine(virNetworkObjPtr network, cmd = virCommandNew(dnsmasqCapsGetBinaryPath(caps)); virCommandAddArgFormat(cmd, "--conf-file=%s", configfile); + /* Libvirt gains full control of leases database */ + virCommandAddArgFormat(cmd, "--leasefile-ro"); virCommandAddArgFormat(cmd, "--dhcp-script=%s", leaseshelper_path); + virCommandAddEnvPair(cmd, "VIR_BRIDGE_NAME", network->def->bridge); *cmdout = cmd; ret = 0; diff --git a/src/network/leaseshelper.c b/src/network/leaseshelper.c index 5b3c9c3..fdd04a3 100644 --- a/src/network/leaseshelper.c +++ b/src/network/leaseshelper.c @@ -50,6 +50,12 @@ */ #define VIR_NETWORK_DHCP_LEASE_FILE_SIZE_MAX (32 * 1024 * 1024) +/* + * Use this when passing possibly-NULL strings to printf-a-likes. + * Required for unknown parameters during init call. + */ +#define EMPTY_STR(s) ((s) ? (s) : "*") + static const char *program_name; /* Display version information. */ @@ -65,7 +71,7 @@ usage(int status) if (status) { fprintf(stderr, _("%s: try --help for more details\n"), program_name); } else { - printf(_("Usage: %s add|old|del mac|clientid ip [hostname]\n" + printf(_("Usage: %s add|old|del|init mac|clientid ip [hostname]\n" "Designed for use with 'dnsmasq --dhcp-script'\n" "Refer to man page of dnsmasq for more details'\n"), program_name); @@ -89,6 +95,7 @@ enum virLeaseActionFlags { VIR_LEASE_ACTION_ADD, /* Create new lease */ VIR_LEASE_ACTION_OLD, /* Lease already exists, renew it */ VIR_LEASE_ACTION_DEL, /* Delete the lease */ + VIR_LEASE_ACTION_INIT, /* Tell dnsmasq of existing leases on restart */ VIR_LEASE_ACTION_LAST }; @@ -96,7 +103,7 @@ enum virLeaseActionFlags { VIR_ENUM_DECL(virLeaseAction); VIR_ENUM_IMPL(virLeaseAction, VIR_LEASE_ACTION_LAST, - "add", "old", "del"); + "add", "old", "del", "init"); int main(int argc, char **argv) @@ -107,12 +114,15 @@ main(int argc, char **argv) char *custom_lease_file = NULL; const char *ip = NULL; const char *mac = NULL; + const char *ip_tmp = NULL; + const char *leases_str = NULL; + const char *server_duid_tmp = NULL; const char *iaid = virGetEnvAllowSUID("DNSMASQ_IAID"); const char *clientid = virGetEnvAllowSUID("DNSMASQ_CLIENT_ID"); const char *interface = virGetEnvAllowSUID("DNSMASQ_INTERFACE"); const char *exptime_tmp = virGetEnvAllowSUID("DNSMASQ_LEASE_EXPIRES"); const char *hostname = virGetEnvAllowSUID("DNSMASQ_SUPPLIED_HOSTNAME"); - const char *leases_str = NULL; + const char *server_duid = virGetEnvAllowSUID("DNSMASQ_SERVER_DUID"); long long currtime = 0; long long expirytime = 0; size_t i = 0; @@ -120,7 +130,6 @@ main(int argc, char **argv) int pid_file_fd = -1; int rv = EXIT_FAILURE; int custom_lease_file_len = 0; - bool add = false; bool delete = false; virJSONValuePtr lease_new = NULL; virJSONValuePtr lease_tmp = NULL; @@ -156,16 +165,17 @@ main(int argc, char **argv) } } - if (argc != 4 && argc != 5) { + if (argc != 4 && argc != 5 && argc != 2) { /* Refer man page of dnsmasq --dhcp-script for more details */ usage(EXIT_FAILURE); } /* Make sure dnsmasq knows the interface. The interface name is not known - * when dnsmasq (re)starts and throws 'del' events for expired leases. - * So, if any old lease has expired, it will be automatically removed the - * next time this program is invoked */ - if (!interface) + * via env variable set by dnsmasq when dnsmasq (re)starts and throws 'del' + * events for expired leases. So, libvirtd sets another env var for this + * purpose */ + if (!interface && + !(interface = virGetEnvAllowSUID("VIR_BRIDGE_NAME"))) goto cleanup; ip = argv[3]; @@ -176,6 +186,10 @@ main(int argc, char **argv) if (argc == 5) hostname = argv[4]; + /* In case hostname is still unknown, use the last known one */ + if (!hostname) + hostname = virGetEnvAllowSUID("DNSMASQ_OLD_HOSTNAME"); + if (VIR_STRDUP(exptime, exptime_tmp) < 0) goto cleanup; @@ -184,7 +198,7 @@ main(int argc, char **argv) exptime[strlen(exptime) - 1] = '\0'; /* Check if it is an IPv6 lease */ - if (virGetEnvAllowSUID("DNSMASQ_IAID")) { + if (iaid) { mac = virGetEnvAllowSUID("DNSMASQ_MAC"); clientid = argv[2]; } @@ -234,7 +248,6 @@ main(int argc, char **argv) delete = true; if (action == VIR_LEASE_ACTION_ADD || action == VIR_LEASE_ACTION_OLD) { - add = true; /* Create new lease */ if (!(lease_new = virJSONValueNewObject())) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", @@ -259,11 +272,13 @@ main(int argc, char **argv) goto cleanup; if (clientid && virJSONValueObjectAppendString(lease_new, "client-id", clientid) < 0) goto cleanup; + if (server_duid && virJSONValueObjectAppendString(lease_new, "server-duid", server_duid) < 0) + goto cleanup; if (expirytime && virJSONValueObjectAppendNumberLong(lease_new, "expiry-time", expirytime) < 0) goto cleanup; } } - } else { + } else if (action != VIR_LEASE_ACTION_INIT) { fprintf(stderr, _("Unsupported action: %s\n"), virLeaseActionTypeToString(action)); exit(EXIT_FAILURE); @@ -292,8 +307,6 @@ main(int argc, char **argv) i = 0; while (i < virJSONValueArraySize(leases_array)) { - const char *ip_tmp = NULL; - long long expirytime_tmp = -1; if (!(lease_tmp = virJSONValueArrayGet(leases_array, i))) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", @@ -302,14 +315,13 @@ main(int argc, char **argv) } if (!(ip_tmp = virJSONValueObjectGetString(lease_tmp, "ip-address")) || - (virJSONValueObjectGetNumberLong(lease_tmp, "expiry-time", &expirytime_tmp) < 0)) { + (virJSONValueObjectGetNumberLong(lease_tmp, "expiry-time", &expirytime) < 0)) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("failed to parse json")); goto cleanup; } - /* Check whether lease has expired or not */ - if (expirytime_tmp < currtime) { + if (expirytime < currtime) { i++; continue; } @@ -320,6 +332,25 @@ main(int argc, char **argv) continue; } + if (strchr(ip_tmp, ':')) { + /* This is an ipv6 lease */ + if ((server_duid_tmp + = virJSONValueObjectGetString(lease_tmp, "server-duid"))) { + if (!server_duid) { + /* Control reaches here when the 'action' is not for an + * ipv6 lease or, for some weird reason the env var + * DNSMASQ_SERVER_DUID wasn't set*/ + server_duid = server_duid_tmp; + } + } else { + /* Inject server-duid into those ipv6 leases which + * didn't have it previously, for example, those + * created by leaseshelper from libvirt 1.2.6 */ + if (virJSONValueObjectAppendString(lease_tmp, "server-duid", server_duid) < 0) + goto cleanup; + } + } + /* Move old lease to new array */ if (virJSONValueArrayAppend(leases_array_new, lease_tmp) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", @@ -332,25 +363,80 @@ main(int argc, char **argv) } } - if (add) { + switch ((enum virLeaseActionFlags) action) { + case VIR_LEASE_ACTION_INIT: + /* Man page of dnsmasq says: the script (helper program, in our case) + * should write the saved state of the lease database, in dnsmasq + * leasefile format, to stdout and exit with zero exit code, when + * called with argument init. Format: + * $expirytime $mac $ip $hostname $clientid # For all ipv4 leases + * duid $server-duid # If DHCPv6 is present + * $expirytime $iaid $ip $hostname $clientduid # For all ipv6 leases */ + + /* Traversing the ipv4 leases */ + for (i = 0; i < virJSONValueArraySize(leases_array_new); i++) { + lease_tmp = virJSONValueArrayGet(leases_array_new, i); + if (!(ip_tmp = virJSONValueObjectGetString(lease_tmp, "ip-address"))) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("failed to parse json")); + goto cleanup; + } + if (!strchr(ip_tmp, ':')) { + virJSONValueObjectGetNumberLong(lease_tmp, "expiry-time", &expirytime); + printf("%lld %s %s %s %s\n", + expirytime, + virJSONValueObjectGetString(lease_tmp, "mac-address"), + virJSONValueObjectGetString(lease_tmp, "ip-address"), + EMPTY_STR(virJSONValueObjectGetString(lease_tmp, "hostname")), + EMPTY_STR(virJSONValueObjectGetString(lease_tmp, "client-id"))); + } + } + + /* Traversing the ipv6 leases */ + if (server_duid) { + printf("duid %s\n", server_duid); + for (i = 0; i < virJSONValueArraySize(leases_array_new); i++) { + lease_tmp = virJSONValueArrayGet(leases_array_new, i); + if (!(ip_tmp = virJSONValueObjectGetString(lease_tmp, "ip-address"))) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("failed to parse json")); + goto cleanup; + } + if (strchr(ip_tmp, ':')) { + virJSONValueObjectGetNumberLong(lease_tmp, "expiry-time", &expirytime); + printf("%lld %s %s %s %s\n", + expirytime, + virJSONValueObjectGetString(lease_tmp, "iaid"), + virJSONValueObjectGetString(lease_tmp, "ip-address"), + EMPTY_STR(virJSONValueObjectGetString(lease_tmp, "hostname")), + EMPTY_STR(virJSONValueObjectGetString(lease_tmp, "client-id"))); + } + } + } + + break; + + case VIR_LEASE_ACTION_OLD: + case VIR_LEASE_ACTION_ADD: if (virJSONValueArrayAppend(leases_array_new, lease_new) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("failed to create json")); goto cleanup; } lease_new = NULL; - } - if (!(leases_str = virJSONValueToString(leases_array_new, true))) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("empty json array")); - goto cleanup; - } + default: + if (!(leases_str = virJSONValueToString(leases_array_new, true))) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("empty json array")); + goto cleanup; + } - /* Write to file */ - if (virFileRewrite(custom_lease_file, 0644, - customLeaseRewriteFile, &leases_str) < 0) - goto cleanup; + /* Write to file */ + if (virFileRewrite(custom_lease_file, 0644, + customLeaseRewriteFile, &leases_str) < 0) + goto cleanup; + } rv = EXIT_SUCCESS; -- 1.9.3

3 4

[libvirt] [PATCHv2] virsh: Fix msg: blockjob is aborted from another client
by Erik Skultety 20 Nov '14

20 Nov '14

When a block{pull, copy, commit} is aborted via keyboard interrupt, the job is properly canceled followed by proper error message. However, when the job receives an abort from another client connected to the same domain, the error message incorrectly indicates that a blockjob has been finished successfully, though the abort request took effect. This patch introduces a new blockjob abort handler, which is registered when the client calls block{copy,commit,pull} routine, providing its caller the status of the finished blockjob. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1135442 --- tools/virsh-domain.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 62 insertions(+), 3 deletions(-) diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c index a7e9151..90960e9 100644 --- a/tools/virsh-domain.c +++ b/tools/virsh-domain.c @@ -1709,6 +1709,17 @@ static void vshCatchInt(int sig ATTRIBUTE_UNUSED, intCaught = 1; } +static void +vshBlockJobStatusHandler(virConnectPtr conn ATTRIBUTE_UNUSED, + virDomainPtr dom ATTRIBUTE_UNUSED, + const char *disk ATTRIBUTE_UNUSED, + int type ATTRIBUTE_UNUSED, + int status, + void *opaque) +{ + *(int *) opaque = status; +} + /* * "blockcommit" command */ @@ -1808,6 +1819,8 @@ cmdBlockCommit(vshControl *ctl, const vshCmd *cmd) const char *path = NULL; bool quit = false; int abort_flags = 0; + int status = -1; + int cb_id = -1; blocking |= vshCommandOptBool(cmd, "timeout") || pivot || finish; if (blocking) { @@ -1837,6 +1850,16 @@ cmdBlockCommit(vshControl *ctl, const vshCmd *cmd) return false; } + virConnectDomainEventGenericCallback cb = + VIR_DOMAIN_EVENT_CALLBACK(vshBlockJobStatusHandler); + + cb_id = virConnectDomainEventRegisterAny(ctl->conn, + dom, + VIR_DOMAIN_EVENT_ID_BLOCK_JOB, + cb, + &status, + NULL); + if (!blockJobImpl(ctl, cmd, VSH_CMD_BLOCK_JOB_COMMIT, &dom)) goto cleanup; @@ -1878,7 +1901,7 @@ cmdBlockCommit(vshControl *ctl, const vshCmd *cmd) intCaught ? "interrupted" : "timeout"); intCaught = 0; timeout = 0; - quit = true; + status = VIR_DOMAIN_BLOCK_JOB_CANCELED; if (virDomainBlockJobAbort(dom, path, abort_flags) < 0) { vshError(ctl, _("failed to abort job for disk %s"), path); goto cleanup; @@ -1890,6 +1913,9 @@ cmdBlockCommit(vshControl *ctl, const vshCmd *cmd) } } + if (status == VIR_DOMAIN_BLOCK_JOB_CANCELED) + quit = true; + if (verbose && !quit) { /* printf [100 %] */ vshPrintJobProgress(_("Block Commit"), 0, 1); @@ -1920,6 +1946,7 @@ cmdBlockCommit(vshControl *ctl, const vshCmd *cmd) virDomainFree(dom); if (blocking) sigaction(SIGINT, &old_sig_action, NULL); + virConnectDomainEventDeregisterAny(ctl->conn, cb_id); return ret; } @@ -2043,6 +2070,8 @@ cmdBlockCopy(vshControl *ctl, const vshCmd *cmd) char *xmlstr = NULL; virTypedParameterPtr params = NULL; int nparams = 0; + int status = -1; + int cb_id = -1; if (vshCommandOptStringReq(ctl, cmd, "path", &path) < 0) return false; @@ -2083,6 +2112,16 @@ cmdBlockCopy(vshControl *ctl, const vshCmd *cmd) return false; } + virConnectDomainEventGenericCallback cb = + VIR_DOMAIN_EVENT_CALLBACK(vshBlockJobStatusHandler); + + cb_id = virConnectDomainEventRegisterAny(ctl->conn, + dom, + VIR_DOMAIN_EVENT_ID_BLOCK_JOB, + cb, + &status, + NULL); + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) goto cleanup; @@ -2216,7 +2255,7 @@ cmdBlockCopy(vshControl *ctl, const vshCmd *cmd) intCaught ? "interrupted" : "timeout"); intCaught = 0; timeout = 0; - quit = true; + status = VIR_DOMAIN_BLOCK_JOB_CANCELED; if (virDomainBlockJobAbort(dom, path, abort_flags) < 0) { vshError(ctl, _("failed to abort job for disk %s"), path); goto cleanup; @@ -2228,6 +2267,9 @@ cmdBlockCopy(vshControl *ctl, const vshCmd *cmd) } } + if (status == VIR_DOMAIN_BLOCK_JOB_CANCELED) + quit = true; + if (!quit && pivot) { abort_flags |= VIR_DOMAIN_BLOCK_JOB_ABORT_PIVOT; if (virDomainBlockJobAbort(dom, path, abort_flags) < 0) { @@ -2256,6 +2298,7 @@ cmdBlockCopy(vshControl *ctl, const vshCmd *cmd) virDomainFree(dom); if (blocking) sigaction(SIGINT, &old_sig_action, NULL); + virConnectDomainEventDeregisterAny(ctl->conn, cb_id); return ret; } @@ -2513,6 +2556,8 @@ cmdBlockPull(vshControl *ctl, const vshCmd *cmd) const char *path = NULL; bool quit = false; int abort_flags = 0; + int status = -1; + int cb_id = -1; if (blocking) { if (vshCommandOptTimeoutToMs(ctl, cmd, &timeout) < 0) @@ -2538,6 +2583,16 @@ cmdBlockPull(vshControl *ctl, const vshCmd *cmd) return false; } + virConnectDomainEventGenericCallback cb = + VIR_DOMAIN_EVENT_CALLBACK(vshBlockJobStatusHandler); + + cb_id = virConnectDomainEventRegisterAny(ctl->conn, + dom, + VIR_DOMAIN_EVENT_ID_BLOCK_JOB, + cb, + &status, + NULL); + if (!blockJobImpl(ctl, cmd, VSH_CMD_BLOCK_JOB_PULL, &dom)) goto cleanup; @@ -2574,7 +2629,7 @@ cmdBlockPull(vshControl *ctl, const vshCmd *cmd) intCaught ? "interrupted" : "timeout"); intCaught = 0; timeout = 0; - quit = true; + status = VIR_DOMAIN_BLOCK_JOB_CANCELED; if (virDomainBlockJobAbort(dom, path, abort_flags) < 0) { vshError(ctl, _("failed to abort job for disk %s"), path); goto cleanup; @@ -2586,6 +2641,9 @@ cmdBlockPull(vshControl *ctl, const vshCmd *cmd) } } + if (status == VIR_DOMAIN_BLOCK_JOB_CANCELED) + quit = true; + if (verbose && !quit) { /* printf [100 %] */ vshPrintJobProgress(_("Block Pull"), 0, 1); @@ -2598,6 +2656,7 @@ cmdBlockPull(vshControl *ctl, const vshCmd *cmd) virDomainFree(dom); if (blocking) sigaction(SIGINT, &old_sig_action, NULL); + virConnectDomainEventDeregisterAny(ctl->conn, cb_id); return ret; } -- 1.9.3

2 1

[libvirt] [PATCH] maint: use portable shell
by Eric Blake 19 Nov '14

19 Nov '14

Reported in https://bugzilla.redhat.com/show_bug.cgi?id=1165827; dash complains: checking for pkcheck... /usr/bin/pkcheck checking whether pkcheck supports uid value... yes ./configure: 63906: test: xno: unexpected operator checking for dtrace... no Broken in commit bf15638 (v0.10.0) * configure.ac: Use '=' not '==' in test. Signed-off-by: Eric Blake <eblake(a)redhat.com> --- Pushing under the build-breaker rule. configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 5a670eb..9fd44b2 100644 --- a/configure.ac +++ b/configure.ac @@ -1389,7 +1389,7 @@ AC_ARG_WITH([firewalld], if test "x$with_firewalld" = "xcheck" ; then with_firewalld=$with_dbus fi -if test "x$with_firewalld" == "xyes" ; then +if test "x$with_firewalld" = "xyes" ; then if test "x$with_dbus" != "xyes" ; then AC_MSG_ERROR([You must have dbus enabled for firewalld support]) fi -- 1.9.3

1 0

[libvirt] [libvirt-glib] Add gvir_domain_open_graphics_fd()
by Zeeshan Ali (Khattak) 19 Nov '14

19 Nov '14

Add binding for virDomainOpenGraphicsFD. --- libvirt-gobject/libvirt-gobject-domain.c | 36 ++++++++++++++++++++++++++++++++ libvirt-gobject/libvirt-gobject-domain.h | 4 ++++ libvirt-gobject/libvirt-gobject.sym | 5 +++++ 3 files changed, 45 insertions(+) diff --git a/libvirt-gobject/libvirt-gobject-domain.c b/libvirt-gobject/libvirt-gobject-domain.c index 8df30d7..9c1aa6e 100644 --- a/libvirt-gobject/libvirt-gobject-domain.c +++ b/libvirt-gobject/libvirt-gobject-domain.c @@ -1222,6 +1222,42 @@ cleanup: } /** + * gvir_domain_open_graphics_fd: + * @dom: the domain + * @idx: the graphics index + * @flags: extra flags, currently unused + * + * This will create a socket pair connected to the graphics backend of @dom. One + * end of the socket will be returned on success, and the other end is handed to + * the hypervisor. If @dom has multiple graphics backends configured, then @idx + * will determine which one is opened, starting from @idx 0. + * + * Returns: An fd on success, -1 on failure. + */ +int gvir_domain_open_graphics_fd(GVirDomain *dom, + guint idx, + unsigned int flags, + GError **err) +{ + GVirDomainPrivate *priv; + int ret = -1; + + g_return_val_if_fail(GVIR_IS_DOMAIN(dom), -1); + g_return_val_if_fail(err == NULL || *err == NULL, -1); + + priv = dom->priv; + + ret = virDomainOpenGraphicsFD(priv->handle, idx, flags); + if (ret <= 0) { + gvir_set_error_literal(err, GVIR_DOMAIN_ERROR, + 0, + "Unable to open graphics"); + } + + return ret; +} + +/** * gvir_domain_suspend: * @dom: the domain to suspend * @err: Place-holder for possible errors diff --git a/libvirt-gobject/libvirt-gobject-domain.h b/libvirt-gobject/libvirt-gobject-domain.h index 47ed784..4fe381e 100644 --- a/libvirt-gobject/libvirt-gobject-domain.h +++ b/libvirt-gobject/libvirt-gobject-domain.h @@ -332,6 +332,10 @@ gboolean gvir_domain_open_graphics(GVirDomain *dom, int fd, unsigned int flags, GError **err); +int gvir_domain_open_graphics_fd(GVirDomain *dom, + guint idx, + unsigned int flags, + GError **err); gboolean gvir_domain_suspend (GVirDomain *dom, GError **err); diff --git a/libvirt-gobject/libvirt-gobject.sym b/libvirt-gobject/libvirt-gobject.sym index d18769b..927cad9 100644 --- a/libvirt-gobject/libvirt-gobject.sym +++ b/libvirt-gobject/libvirt-gobject.sym @@ -260,4 +260,9 @@ LIBVIRT_GOBJECT_0.1.9 { gvir_stream_io_condition_get_type; } LIBVIRT_GOBJECT_0.1.5; +LIBVIRT_GOBJECT_0.2.0 { + global: + gvir_domain_open_graphics_fd; +} LIBVIRT_GOBJECT_0.1.9; + # .... define new API here using predicted next version number .... -- 2.1.0

4 11

[libvirt] [PATCH] qemu: Support OVMF on aarch64 guests
by Michal Privoznik 19 Nov '14

19 Nov '14

Currently, we are whitelisting architectures, that we know how to run OVMF on. So far, only x86_64 was enabled. However, looking at qemu code, the same commandline can be used to enable OVMF for aarch64. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- src/qemu/qemu_command.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index d2e6991..ca57e35 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -7749,7 +7749,8 @@ qemuBuildDomainLoaderCommandLine(virCommandPtr cmd, case VIR_DOMAIN_LOADER_TYPE_PFLASH: /* UEFI is supported only for x86_64 currently */ - if (def->os.arch != VIR_ARCH_X86_64) { + if (def->os.arch != VIR_ARCH_X86_64 && + def->os.arch != VIR_ARCH_AARCH64) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, _("pflash is not supported for %s guest architecture"), virArchToString(def->os.arch)); -- 2.0.4

4 16

[libvirt] [PATCH v2 0/7] optionally expose disk usage during dumpxml
by Eric Blake 19 Nov '14

19 Nov '14

v1 was here: https://www.redhat.com/archives/libvir-list/2014-September/msg01077.html This adds the framework for exposing disk of all disks from a single dumpxml command. I'm still working on a followup patch to further list usage of disks in the backing chain, rather than just the top-level disk, but want to get review started on this code. Eric Blake (7): dumpxml: add flag to virDomainGetXMLDesc qemu: refactor dumpxml job handling qemu: refactor blockinfo job handling dumpxml: let blockinfo reuse virStorageSource qemu: refactor blockinfo data gathering dumpxml: query disk limits as needed for qemu dumpxml: add output of block info docs/schemas/domaincommon.rng | 22 +++ include/libvirt/libvirt-domain.h | 1 + src/conf/domain_conf.c | 16 +- src/libvirt-domain-snapshot.c | 5 +- src/libvirt-domain.c | 10 +- src/qemu/qemu_driver.c | 397 ++++++++++++++++++++++----------------- src/util/virstoragefile.h | 3 +- tools/virsh-domain.c | 6 + tools/virsh.pod | 6 +- 9 files changed, 284 insertions(+), 182 deletions(-) -- 1.9.3

3 16

[libvirt] [PATCH] storage: wrap storage_driver.c to 80 columns
by Chen Hanxiao 19 Nov '14

19 Nov '14

Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com> --- src/storage/storage_driver.c | 35 +++++++++++++++++++++++------------ 1 file changed, 23 insertions(+), 12 deletions(-) diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c index fe6059a..d5485e7 100644 --- a/src/storage/storage_driver.c +++ b/src/storage/storage_driver.c @@ -174,8 +174,9 @@ storageStateInitialize(bool privileged, } driver->privileged = privileged; - /* Configuration paths are either $USER_CONFIG_HOME/libvirt/storage/... (session) or - * /etc/libvirt/storage/... (system). + /* + * Configuration paths are either $USER_CONFIG_HOME/libvirt/storage/... + * (session) or /etc/libvirt/storage/... (system). */ if (virAsprintf(&driver->configDir, "%s/storage", base) == -1) @@ -338,7 +339,8 @@ storagePoolLookupByVolume(virStorageVolPtr vol) if (!pool) { virReportError(VIR_ERR_NO_STORAGE_POOL, - _("no storage pool with matching name '%s'"), vol->pool); + _("no storage pool with matching name '%s'"), + vol->pool); return NULL; } @@ -732,7 +734,9 @@ storagePoolUndefine(virStoragePoolPtr obj) if (virStoragePoolObjDeleteDef(pool) < 0) goto cleanup; - if (unlink(pool->autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) { + if (unlink(pool->autostartLink) < 0 && + errno != ENOENT && + errno != ENOTDIR) { char ebuf[1024]; VIR_ERROR(_("Failed to delete autostart link '%s': %s"), pool->autostartLink, virStrerror(errno, ebuf, sizeof(ebuf))); @@ -1344,13 +1348,14 @@ storageVolLookupByKey(virConnectPtr conn, virStorageVolDefFindByKey(driver->pools.objs[i], key); if (vol) { - if (virStorageVolLookupByKeyEnsureACL(conn, driver->pools.objs[i]->def, vol) < 0) { + virStoragePoolDefPtr def = driver->pools.objs[i]->def; + if (virStorageVolLookupByKeyEnsureACL(conn, def, vol) < 0) { virStoragePoolObjUnlock(driver->pools.objs[i]); goto cleanup; } ret = virGetStorageVol(conn, - driver->pools.objs[i]->def->name, + def->name, vol->name, vol->key, NULL, NULL); @@ -1774,7 +1779,8 @@ storageVolCreateXMLFrom(virStoragePoolPtr obj, if ((backend = virStorageBackendForType(pool->def->type)) == NULL) goto cleanup; - origvol = virStorageVolDefFindByName(origpool ? origpool : pool, vobj->name); + origvol = virStorageVolDefFindByName(origpool ? + origpool : pool, vobj->name); if (!origvol) { virReportError(VIR_ERR_NO_STORAGE_VOL, _("no storage vol with matching name '%s'"), @@ -1807,7 +1813,8 @@ storageVolCreateXMLFrom(virStoragePoolPtr obj, if (!backend->buildVolFrom) { virReportError(VIR_ERR_NO_SUPPORT, - "%s", _("storage pool does not support volume creation from an existing volume")); + "%s", _("storage pool does not support" + " volume creation from an existing volume")); goto cleanup; } @@ -2333,7 +2340,8 @@ storageConnectListAllStoragePools(virConnectPtr conn, storageDriverLock(); ret = virStoragePoolObjListExport(conn, driver->pools, pools, - virConnectListAllStoragePoolsCheckACL, flags); + virConnectListAllStoragePoolsCheckACL, + flags); storageDriverUnlock(); cleanup: @@ -2642,7 +2650,8 @@ virStorageFileStat(virStorageSourcePtr src, * @buf: buffer to read the data into. buffer shall be freed by caller) * * Returns the count of bytes read on success and -1 on failure, -2 if the - * function isn't supported by the backend. Libvirt error is reported on failure. + * function isn't supported by the backend. + * Libvirt error is reported on failure. */ ssize_t virStorageFileReadHeader(virStorageSourcePtr src, @@ -2898,7 +2907,8 @@ virStorageFileGetMetadata(virStorageSourcePtr src, return -1; if (src->format <= VIR_STORAGE_FILE_NONE) - src->format = allow_probe ? VIR_STORAGE_FILE_AUTO : VIR_STORAGE_FILE_RAW; + src->format = allow_probe ? + VIR_STORAGE_FILE_AUTO : VIR_STORAGE_FILE_RAW; ret = virStorageFileGetMetadataRecurse(src, src, uid, gid, allow_probe, report_broken, cycle); @@ -3113,7 +3123,8 @@ virStorageTranslateDiskSourcePool(virConnectPtr conn, def->src->srcpool->actualtype = VIR_STORAGE_TYPE_NETWORK; def->src->protocol = VIR_STORAGE_NET_PROTOCOL_ISCSI; - if (virStorageTranslateDiskSourcePoolAuth(def, &pooldef->source) < 0) + if (virStorageTranslateDiskSourcePoolAuth(def, + &pooldef->source) < 0) goto cleanup; if (virStorageAddISCSIPoolSourceHost(def, pooldef) < 0) -- 1.9.3

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[libvirt] [PATCH] vbox: fix a bug in _machineStateInactive
by Yohan BELLEGUIC 19 Nov '14

19 Nov '14

This function returned non-inactive domains instead of active domains. This broke virConnectNumOfDefinedDomains() and virConnectListDefinedDomains() functions. --- src/vbox/vbox_tmpl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/vbox/vbox_tmpl.c b/src/vbox/vbox_tmpl.c index de8744d..37ec8e1 100644 --- a/src/vbox/vbox_tmpl.c +++ b/src/vbox/vbox_tmpl.c @@ -4607,8 +4607,8 @@ static bool _machineStateOnline(PRUint32 state) static bool _machineStateInactive(PRUint32 state) { - return ((state > MachineState_FirstOnline) && - (state < MachineState_LastOnline)); + return ((state < MachineState_FirstOnline) || + (state > MachineState_LastOnline)); } static bool _machineStateNotStart(PRUint32 state) -- 1.7.10.4

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[libvirt] [PATCH] docs: Document NVRAM behavior on transient domains
by Michal Privoznik 19 Nov '14

19 Nov '14

Since 1.2.8 it's possible to use OVMF on domains. Moreover, it's possible to have libvirt create NVRAM file per domain. Later, when domain is undefined, the file is removed too. However, things are a bit complicated when domain's transient. There's no undefine to transient domains. There are two options: 1) leave the file behind and let mgmt app remove it. 2) remove it automatically as domain dies. But, in some scenarios mgmt app may want to preserve the file, copy it somewhere safe, and then copy it back when the domain is starting again. And this wouldn't be possible with case 2). So, even though case 1) leaves some files behind (possibly undeleted for a long time), the files themselves are small (128K each). And data loss is worse than full disk, isn't it? Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- docs/formatdomain.html.in | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index d4189e6..705d497 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -147,7 +147,10 @@ started up libvirt copies so called master NVRAM store file defined in <code>qemu.conf</code>. If needed, the <code>template</code> attribute can be used to per domain override map of master NVRAM stores - from the config file. <span class="since">Since 1.2.8</span></dd> + from the config file. Note, that for transient domains if the NVRAM file + has been created by libvirt it is left behind and it management + application's responsibility to save and remove file (if needed to be + persistent). <span class="since">Since 1.2.8</span></dd> <dt><code>boot</code></dt> <dd>The <code>dev</code> attribute takes one of the values "fd", "hd", "cdrom" or "network" and is used to specify the next boot device -- 2.0.4

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