September 2013 - Devel - libvirt List Archives

[libvirt] [PATCH] storage: use btrfs file clone ioctl when possible
by Oskari Saarenmaa 30 Sep '13

30 Sep '13

Btrfs provides a copy-on-write clone ioctl so let's try to use it instead of copying files block by block. The ioctl is executed unconditionally if it's available and we fall back to block copying if it fails, similarly to cp --reflink=auto. Signed-off-by: Oskari Saarenmaa <os(a)ohmu.fi> --- configure.ac | 5 +++++ src/storage/storage_backend.c | 11 +++++++++++ 2 files changed, 16 insertions(+) diff --git a/configure.ac b/configure.ac index 553015a..acae92e 100644 --- a/configure.ac +++ b/configure.ac @@ -1984,6 +1984,11 @@ fi AM_CONDITIONAL([WITH_STORAGE], [test "$with_storage" = "yes"]) dnl +dnl check for headers for filesystem specific operations +dnl +AC_CHECK_HEADERS([linux/btrfs.h]) + +dnl dnl check for (ESX) dnl diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index b7edf85..40bfb73 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -38,6 +38,9 @@ # include <sys/ioctl.h> # include <linux/fs.h> #endif +#ifdef HAVE_LINUX_BTRFS_H +# include <linux/btrfs.h> +#endif #if WITH_SELINUX # include <selinux/selinux.h> @@ -149,6 +152,13 @@ virStorageBackendCopyToFD(virStorageVolDefPtr vol, goto cleanup; } +#ifdef HAVE_LINUX_BTRFS_H + /* try to perform a btrfs CoW clone */ + if (ioctl(fd, BTRFS_IOC_CLONE, inputfd) == 0) { + goto done; + } +#endif + #ifdef __linux__ if (ioctl(fd, BLKBSZGET, &wbytes) < 0) { wbytes = 0; @@ -210,6 +220,7 @@ virStorageBackendCopyToFD(virStorageVolDefPtr vol, } while ((amtleft -= interval) > 0); } +done: if (fdatasync(fd) < 0) { ret = -errno; virReportSystemError(errno, _("cannot sync data to file '%s'"), -- 1.8.3.1

2 3

[libvirt] [PATCH] fix a ambiguous output of the command:'virsh vol-create-as'
by Hongwei Bi 30 Sep '13

30 Sep '13

I created a storage volume(eg: test) from a storage pool(eg:vg10) using the following command:"virsh vol-create-as --pool vg10 --name test --capacity 300M." When I re-executed the above command, the output was as the following: "error: Failed to create vol test error: Storage volume not found: storage vol 'test' already exists" I think the output "Storage volume not found" is not appropriate. Because in fact storage vol test has been found at this time. And then I think virErrorNumber should includes VIR_ERR_STORAGE_EXIST which can also be used elsewhere. So I make this patch. The result is as following: "error: Failed to create vol test error: storage volume 'test' exists already" --- include/libvirt/virterror.h | 1 + src/storage/storage_driver.c | 4 ++-- src/util/virerror.c | 6 ++++++ 3 files changed, 9 insertions(+), 2 deletions(-) diff --git a/include/libvirt/virterror.h b/include/libvirt/virterror.h index c1960c8..28ef30a 100644 --- a/include/libvirt/virterror.h +++ b/include/libvirt/virterror.h @@ -296,6 +296,7 @@ typedef enum { VIR_ERR_ACCESS_DENIED = 88, /* operation on the object/resource was denied */ VIR_ERR_DBUS_SERVICE = 89, /* error from a dbus service */ + VIR_ERR_STORAGE_EXIST = 90, /* the storage vol already exist */ } virErrorNumber; /** diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c index 6c39284..aa5a144 100644 --- a/src/storage/storage_driver.c +++ b/src/storage/storage_driver.c @@ -1538,8 +1538,8 @@ storageVolCreateXML(virStoragePoolPtr obj, goto cleanup; if (virStorageVolDefFindByName(pool, voldef->name)) { - virReportError(VIR_ERR_NO_STORAGE_VOL, - _("storage vol '%s' already exists"), voldef->name); + virReportError(VIR_ERR_STORAGE_EXIST, + _("'%s'"), voldef->name); goto cleanup; } diff --git a/src/util/virerror.c b/src/util/virerror.c index ca25678..35bb017 100644 --- a/src/util/virerror.c +++ b/src/util/virerror.c @@ -1004,6 +1004,12 @@ virErrorMsg(virErrorNumber error, const char *info) else errmsg = _("Storage volume not found: %s"); break; + case VIR_ERR_STORAGE_EXIST: + if (info == NULL) + errmsg = _("this storage volume exists already"); + else + errmsg = _("storage volume %s exists already"); + break; case VIR_ERR_STORAGE_PROBE_FAILED: if (info == NULL) errmsg = _("Storage pool probe failed"); -- 1.7.1

1 0

Re: [libvirt] [PATCH] add migration APIs to libxl driver
by Bamvor Jian Zhang 30 Sep '13

30 Sep '13

> --- > src/libxl/libxl_conf.h | 4 + > src/libxl/libxl_driver.c | 641 > ++++++++++++++++++++++++++++++++++++++++++++++ > src/libxl/libxl_driver.h | 5 + > 3 files changed, 650 insertions(+), 0 deletions(-) > > diff --git a/src/libxl/libxl_conf.h b/src/libxl/libxl_conf.h > index 8ba0ee4..2041cc2 100644 > --- a/src/libxl/libxl_conf.h > +++ b/src/libxl/libxl_conf.h > @@ -41,6 +41,9 @@ > # define LIBXL_VNC_PORT_MIN 5900 > # define LIBXL_VNC_PORT_MAX 65535 > > +# define LIBXL_MIGRATION_PORT_MIN 49152 > +# define LIBXL_MIGRATION_PORT_MAX 49216 > + there is a overlap between vnc and migration port. althrought, it will try next port in virPortAllocatorAcquire after bind fail. > # define LIBXL_CONFIG_DIR SYSCONFDIR "/libvirt/libxl" > # define LIBXL_AUTOSTART_DIR LIBXL_CONFIG_DIR "/autostart" > # define LIBXL_STATE_DIR LOCALSTATEDIR "/run/libvirt/libxl" > @@ -109,6 +112,7 @@ struct _libxlDriverPrivate { > > /* Immutable pointer, self-locking APIs */ > virPortAllocatorPtr reservedVNCPorts; > + virPortAllocatorPtr reservedMigPorts; > > /* Immutable pointer, lockless APIs*/ > virSysinfoDefPtr hostsysinfo; > diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c > index e2a6d44..93b7153 100644 > --- a/src/libxl/libxl_driver.c > +++ b/src/libxl/libxl_driver.c > @@ -32,6 +32,12 @@ > #include <libxl_utils.h> > #include <fcntl.h> > #include <regex.h> > +#include <stdlib.h> > +#include <string.h> > +#include <sys/types.h> > +#include <sys/socket.h> > +#include <arpa/inet.h> > +#include <netdb.h> > > #include "internal.h" > #include "virlog.h" > @@ -52,6 +58,7 @@ > #include "virsysinfo.h" > #include "viraccessapicheck.h" > #include "viratomic.h" > +#include "rpc/virnetsocket.h" > > #define VIR_FROM_THIS VIR_FROM_LIBXL > > @@ -69,6 +76,20 @@ > > static libxlDriverPrivatePtr libxl_driver = NULL; > > +typedef struct _libxlMigrateReceiveArgs { > + virConnectPtr conn; > + virDomainObjPtr vm; > + > + /* for freeing listen sockets */ > + virNetSocketPtr *socks; > + size_t nsocks; > +} libxlMigrateReceiveArgs; > + > +static const char libxlMigrateReceiverReady[]= > + "libvirt libxl migration receiver ready, send binary domain data"; > +static const char libxlMigrateReceiverFinish[]= > + "domain received, ready to unpause"; > + > /* Function declarations */ > static int > libxlDomainManagedSaveLoad(virDomainObjPtr vm, > @@ -836,6 +857,12 @@ libxlStateInitialize(bool privileged, > LIBXL_VNC_PORT_MAX))) > goto error; > > + /* Allocate bitmap for migration port reservation */ > + if (!(libxl_driver->reservedMigPorts = > + virPortAllocatorNew(LIBXL_MIGRATION_PORT_MIN, > + LIBXL_MIGRATION_PORT_MAX))) > + goto error; > + > if (!(libxl_driver->domains = virDomainObjListNew())) > goto error; > > @@ -4175,11 +4202,620 @@ libxlConnectSupportsFeature(virConnectPtr conn, > int feature) > switch (feature) { > case VIR_DRV_FEATURE_TYPED_PARAM_STRING: > return 1; > + case VIR_DRV_FEATURE_MIGRATION_V3: > + return 1; > default: > return 0; > } > } > > +static int > +libxlCheckMessageBanner(int fd, const char *banner, int banner_sz) > +{ > + char buf[banner_sz]; > + int ret = 0; > + > + do { > + ret = saferead(fd, buf, banner_sz); > + } while (ret == -1 && errno == EAGAIN); > + > + if (ret != banner_sz || memcmp(buf, banner, banner_sz)) { > + return -1; > + } > + > + return 0; > +} > + > +static char * > +libxlDomainMigrateBegin3(virDomainPtr domain, > + const char *xmlin, > + char **cookieout ATTRIBUTE_UNUSED, > + int *cookieoutlen ATTRIBUTE_UNUSED, > + unsigned long flags, > + const char *dname ATTRIBUTE_UNUSED, > + unsigned long resource ATTRIBUTE_UNUSED) > +{ > + libxlDriverPrivatePtr driver = domain->conn->privateData; > + libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver); > + virDomainObjPtr vm; > + virDomainDefPtr def = NULL; > + char *xml = NULL; > + > + virCheckFlags(LIBXL_MIGRATION_FLAGS, NULL); > + > + vm = virDomainObjListFindByUUID(driver->domains, domain->uuid); > + if (!vm) { > + char uuidstr[VIR_UUID_STRING_BUFLEN]; > + virUUIDFormat(domain->uuid, uuidstr); > + virReportError(VIR_ERR_OPERATION_INVALID, > + _("no domain with matching uuid '%s'"), uuidstr); > + goto cleanup; > + } libxlDomObjFromDomain is introduced in commit 0d87fd0aa by Jim. > + > + if (!virDomainObjIsActive(vm)) { > + virReportError(VIR_ERR_OPERATION_INVALID, "%s", > + _("domain is not running")); > + goto cleanup; > + } > + > + if (virDomainMigrateBegin3EnsureACL(domain->conn, vm->def) < 0) > + goto cleanup; > + > + if (xmlin) { > + if (!(def = virDomainDefParseString(xmlin, cfg->caps, > + driver->xmlopt, > + 1 << VIR_DOMAIN_VIRT_XEN, > + VIR_DOMAIN_XML_INACTIVE))) > + goto cleanup; > + > + xml = virDomainDefFormat(def, VIR_DOMAIN_XML_SECURE); > + } else { > + xml = virDomainDefFormat(vm->def, VIR_DOMAIN_XML_SECURE); > + } > + > +cleanup: > + virDomainDefFree(def); > + if (vm) > + virObjectUnlock(vm); > + virObjectUnref(cfg); > + return xml; > +} > + > +static void > +doMigrateReceive(virNetSocketPtr sock, > + int events ATTRIBUTE_UNUSED, > + void *opaque) > +{ > + libxlMigrateReceiveArgs *data = opaque; > + virConnectPtr conn = data->conn; > + virDomainObjPtr vm = data->vm; > + virNetSocketPtr *socks = data->socks; > + size_t nsocks = data->nsocks; > + libxlDriverPrivatePtr driver = conn->privateData; > + virNetSocketPtr client_sock; > + int recv_fd; > + int len; > + size_t i; > + int ret; > + > + virNetSocketAccept(sock, &client_sock); > + if (client_sock == NULL) { > + virReportError(VIR_ERR_OPERATION_INVALID, "%s", > + _("Fail to accept migration connection")); > + goto cleanup; > + } > + VIR_DEBUG("Accepted migration\n"); > + recv_fd = virNetSocketDupFD(client_sock, true); > + virObjectUnref(client_sock); > + > + len = sizeof(libxlMigrateReceiverReady); > + if (safewrite(recv_fd, libxlMigrateReceiverReady, len) != len) { > + virReportError(VIR_ERR_OPERATION_FAILED, "%s", > + _("Failed to write libxlMigrateReceiverReady")); > + goto cleanup; > + } > + > + virObjectLock(vm); > + ret = libxlVmStart(driver, vm, false, recv_fd); > + virObjectUnlock(vm); > + > + if (ret < 0) { > + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", > + _("Failed to restore domain with libxenlight")); > + if (!vm->persistent) { > + virDomainObjListRemove(driver->domains, vm); > + vm = NULL; > + } > + goto cleanup; > + } > + > + len = sizeof(libxlMigrateReceiverFinish); > + if (safewrite(recv_fd, libxlMigrateReceiverFinish, len) != len) { > + virReportError(VIR_ERR_OPERATION_FAILED, "%s", > + _("Failed to write libxlMigrateReceiverFinish")); > + } > + > + /* Remove all listen socks from event handler, and close them. */ > + if (nsocks) { > + for (i = 0; i < nsocks; i++) { > + virNetSocketUpdateIOCallback(socks[i], 0); > + virNetSocketRemoveIOCallback(socks[i]); > + virNetSocketClose(socks[i]); > + virObjectUnref(socks[i]); > + } > + VIR_FREE(socks); > + } > + > +cleanup: > + VIR_FORCE_CLOSE(recv_fd); > + VIR_FREE(opaque); > + return; > +} > + > +static int > +doMigrateSend(libxlDriverPrivatePtr driver, > + virDomainObjPtr vm, > + unsigned long flags, > + int sockfd) > +{ > + libxlDomainObjPrivatePtr priv; > + libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver); > + virDomainEventPtr event = NULL; > + int live = 0; > + int ret = -1; > + > + if (flags & VIR_MIGRATE_LIVE) > + live = LIBXL_SUSPEND_LIVE; > + > + priv = vm->privateData; > + > + /* read fixed message from dest (ready to receive) */ > + if (libxlCheckMessageBanner(sockfd, libxlMigrateReceiverReady, > + sizeof(libxlMigrateReceiverReady))) > + goto cleanup; > + > + if (libxl_domain_suspend(priv->ctx, vm->def->id, sockfd, live, NULL) > != 0) { > + virReportError(VIR_ERR_INTERNAL_ERROR, > + _("Failed to save domain '%d' with libxenlight"), > + vm->def->id); > + goto cleanup; > + } > + > + /* read fixed message from dest (receive completed) */ > + if (libxlCheckMessageBanner(sockfd, libxlMigrateReceiverFinish, > + sizeof(libxlMigrateReceiverFinish))) { > + if (libxl_domain_resume(priv->ctx, vm->def->id, 0, 0) != 0) { > + VIR_DEBUG("Failed to resume domain '%d' with libxenlight", > + vm->def->id); > + virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, > + VIR_DOMAIN_PAUSED_MIGRATION); > + event = virDomainEventNewFromObj(vm, > VIR_DOMAIN_EVENT_SUSPENDED, > + > VIR_DOMAIN_EVENT_SUSPENDED_MIGRATED); > + if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0) > + goto cleanup; > + } > + goto cleanup; > + } > + > + ret = 0; > + > +cleanup: > + if (event) > + libxlDomainEventQueue(driver, event); > + virObjectUnref(cfg); > + return ret; > +} > + > +static int > +libxlDomainMigratePrepare3(virConnectPtr dconn, > + const char *cookiein ATTRIBUTE_UNUSED, > + int cookieinlen ATTRIBUTE_UNUSED, > + char **cookieout ATTRIBUTE_UNUSED, > + int *cookieoutlen ATTRIBUTE_UNUSED, > + const char *uri_in, > + char **uri_out, > + unsigned long flags, > + const char *dname, > + unsigned long resource ATTRIBUTE_UNUSED, > + const char *dom_xml) > +{ > + libxlDriverPrivatePtr driver = dconn->privateData; > + libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver); > + virDomainDefPtr def = NULL; > + virDomainObjPtr vm = NULL; > + char *hostname = NULL; > + unsigned short port; > + char portstr[100]; > + virURIPtr uri = NULL; > + virNetSocketPtr *socks = NULL; > + size_t nsocks = 0; > + int nsocks_listen = 0; > + libxlMigrateReceiveArgs *args; > + size_t i; > + int ret = -1; > + > + virCheckFlags(LIBXL_MIGRATION_FLAGS, -1); > + > + libxlDriverLock(driver); > + if (!dom_xml) { > + virReportError(VIR_ERR_OPERATION_INVALID, "%s", > + _("no domain XML passed")); > + goto cleanup; > + } > + def = virDomainDefParseString(dom_xml, cfg->caps, driver->xmlopt, > + 1 << VIR_DOMAIN_VIRT_XEN, > + VIR_DOMAIN_XML_INACTIVE); > + > + /* Target domain name, maybe renamed. */ > + if (dname) { > + if (VIR_STRDUP(def->name, dname) < 0) > + goto cleanup; > + } > + > + if (!(vm = virDomainObjListAdd(driver->domains, def, > + driver->xmlopt, > + VIR_DOMAIN_OBJ_LIST_ADD_LIVE | > + VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE, > + NULL))) > + goto cleanup; > + > + def = NULL; > + > + if (virDomainMigratePrepare3EnsureACL(dconn, vm->def) < 0) > + goto cleanup; > + > + /* Create socket connection to receive migration data */ > + if (!uri_in) { > + hostname = virGetHostname(); > + if (hostname == NULL) > + goto cleanup; > + > + if (virPortAllocatorAcquire(driver->reservedMigPorts, &port) < 0) > + goto cleanup; > + > + if (port == 0) { > + virReportError(VIR_ERR_INTERNAL_ERROR, > + "%s", _("Unable to find an unused migrate > port")); > + goto cleanup; > + } > + > + if (virAsprintf(uri_out, "tcp://%s:%d", hostname, port) < 0) > + goto cleanup; > + } else { > + if (!strstr(uri_in, "//")) { > + /* not full URI, add prefix tcp:// */ > + char *tmp; > + if (virAsprintf(&tmp, "tcp://%s", uri_in) < 0) > + goto cleanup; > + uri = virURIParse(tmp); > + VIR_FREE(tmp); > + } else { > + uri = virURIParse(uri_in); > + } > + > + if (uri == NULL) { > + virReportError(VIR_ERR_INVALID_ARG, > + _("unable to parse URI: %s"), > + uri_in); > + goto cleanup; > + } > + > + if (uri->server == NULL) { > + virReportError(VIR_ERR_INVALID_ARG, > + _("missing host in migration URI: %s"), > + uri_in); > + goto cleanup; > + } else { > + hostname = uri->server; > + } > + > + if (uri->port == 0) { > + if (virPortAllocatorAcquire(driver->reservedMigPorts, &port) < > 0) > + goto cleanup; > + > + if (port == 0) { > + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", > + _("Unable to find an unused migrate port")); > + goto cleanup; > + } > + } else { > + port = uri->port; > + } > + > + if (virAsprintf(uri_out, "tcp://%s:%d", hostname, port) < 0) > + goto cleanup; > + } > + > + snprintf(portstr, sizeof(portstr), "%d", port); > + > + if (virNetSocketNewListenTCP(hostname, portstr, &socks, &nsocks) < 0) { > + virReportError(VIR_ERR_OPERATION_FAILED, "%s", > + _("Fail to create socket for incoming migration")); > + goto cleanup; > + } > + > + if (VIR_ALLOC(args) < 0) > + goto cleanup; > + > + args->conn = dconn; > + args->vm = vm; > + args->socks = socks; > + args->nsocks = nsocks; > + > + for (i = 0 ; i < nsocks ; i++) { > + if (virNetSocketSetBlocking(socks[i], true) < 0) > + continue; > + if (virNetSocketListen(socks[i], 1) < 0) > + continue; > + > + if (virNetSocketAddIOCallback(socks[i], > + 0, > + doMigrateReceive, > + args, > + NULL) < 0) { > + continue; > + } > + > + virNetSocketUpdateIOCallback(socks[i], VIR_EVENT_HANDLE_READABLE); > + nsocks_listen ++; > + } > + > + if (!nsocks_listen) > + goto cleanup; > + > + ret = 0; > + goto end; > + > +cleanup: > + if (nsocks) { > + for (i = 0 ; i < nsocks ; i++) { > + virNetSocketClose(socks[i]); > + virObjectUnref(socks[i]); > + } > + VIR_FREE(socks); > + } > + > +end: > + virURIFree(uri); > + if (vm) > + virObjectUnlock(vm); > + virObjectUnref(cfg); > + libxlDriverUnlock(driver); > + return ret; > +} > + > +static int > +libxlDomainMigratePerform3(virDomainPtr dom, > + const char *xmlin ATTRIBUTE_UNUSED, > + const char *cookiein ATTRIBUTE_UNUSED, > + int cookieinlen ATTRIBUTE_UNUSED, > + char **cookieout ATTRIBUTE_UNUSED, > + int *cookieoutlen ATTRIBUTE_UNUSED, > + const char *dconnuri ATTRIBUTE_UNUSED, > + const char *uri, > + unsigned long flags, > + const char *dname ATTRIBUTE_UNUSED, > + unsigned long resource ATTRIBUTE_UNUSED) > +{ > + libxlDriverPrivatePtr driver = dom->conn->privateData; > + virDomainObjPtr vm; > + char *hostname = NULL; > + unsigned short port = 0; > + char portstr[100]; > + virURIPtr uri_p = NULL; > + virNetSocketPtr sock; > + int sockfd = -1; > + int saved_errno = EINVAL; > + int ret = -1; > + > + virCheckFlags(LIBXL_MIGRATION_FLAGS, -1); > + > + vm = virDomainObjListFindByUUID(driver->domains, dom->uuid); > + if (!vm) { > + char uuidstr[VIR_UUID_STRING_BUFLEN]; > + virUUIDFormat(dom->uuid, uuidstr); > + virReportError(VIR_ERR_OPERATION_INVALID, > + _("no domain with matching uuid '%s'"), uuidstr); > + goto cleanup; > + } same here. > + > + if (virDomainMigratePerform3EnsureACL(dom->conn, vm->def) < 0) > + goto cleanup; > + > + /* parse dst host:port from uri */ > + uri_p = virURIParse(uri); > + if (uri_p == NULL || uri_p->server == NULL || uri_p->port == 0) > + goto cleanup; > + > + hostname = uri_p->server; > + port = uri_p->port; > + snprintf(portstr, sizeof(portstr), "%d", port); > + > + /* socket connect to dst host:port */ > + if (virNetSocketNewConnectTCP(hostname, portstr, &sock) < 0) { > + virReportSystemError(saved_errno, > + _("unable to connect to '%s:%s'"), > + hostname, portstr); > + goto cleanup; > + } > + > + if (virNetSocketSetBlocking(sock, true) < 0) { > + virObjectUnref(sock); > + goto cleanup; > + } > + > + sockfd = virNetSocketDupFD(sock, true); > + virObjectUnref(sock); > + > + /* suspend vm and send saved data to dst through socket fd */ > + ret = doMigrateSend(driver, vm, flags, sockfd); > + > +cleanup: > + VIR_FORCE_CLOSE(sockfd); > + virURIFree(uri_p); > + if (vm) > + virObjectUnlock(vm); > + return ret; > +} > + > +static virDomainPtr > +libxlDomainMigrateFinish3(virConnectPtr dconn, > + const char *dname, > + const char *cookiein ATTRIBUTE_UNUSED, > + int cookieinlen ATTRIBUTE_UNUSED, > + char **cookieout ATTRIBUTE_UNUSED, > + int *cookieoutlen ATTRIBUTE_UNUSED, > + const char *dconnuri ATTRIBUTE_UNUSED, > + const char *uri, > + unsigned long flags, > + int cancelled) > +{ > + libxlDriverPrivatePtr driver = dconn->privateData; > + libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver); > + unsigned short port = 0; > + virURIPtr uri_p = NULL; > + virDomainObjPtr vm = NULL; > + virDomainPtr dom = NULL; > + libxlDomainObjPrivatePtr priv; > + virDomainEventPtr event = NULL; > + int rc; > + > + virCheckFlags(LIBXL_MIGRATION_FLAGS, NULL); > + > + uri_p = virURIParse(uri); > + if (uri_p == NULL || uri_p->port == 0) > + VIR_DEBUG("Fail to parse port from URI"); > + port = uri_p->port; > + if (LIBXL_MIGRATION_PORT_MIN <= port && port < > LIBXL_MIGRATION_PORT_MAX) { > + if (virPortAllocatorRelease(driver->reservedMigPorts, port) < 0) > + VIR_DEBUG("Could not mark port %d as unused", port); > + } > + > + vm = virDomainObjListFindByName(driver->domains, dname); > + if (!vm) > + goto cleanup; > + > + if (virDomainMigrateFinish3EnsureACL(dconn, vm->def) < 0) > + goto cleanup; > + > + if (!cancelled) { > + if (!(flags & VIR_MIGRATE_PAUSED)) { > + priv = vm->privateData; > + rc = libxl_domain_unpause(priv->ctx, vm->def->id); > + if (rc) { > + virReportError(VIR_ERR_OPERATION_FAILED, "%s", > + _("Failed to unpause domain")); > + goto error; > + } > + > + virDomainObjSetState(vm, VIR_DOMAIN_RUNNING, > VIR_DOMAIN_RUNNING_BOOTED); > + if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0) > + goto error; > + } > + > + dom = virGetDomain(dconn, vm->def->name, vm->def->uuid); > + goto cleanup; > + } > + > +error: > + if (libxlVmReap(driver, vm, VIR_DOMAIN_SHUTOFF_SAVED)) { > + virReportError(VIR_ERR_INTERNAL_ERROR, > + _("Failed to destroy domain '%d'"), vm->def->id); > + goto cleanup; > + } > + event = virDomainEventNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED, > + VIR_DOMAIN_EVENT_STOPPED_SAVED); > + if (!vm->persistent) { > + virDomainObjListRemove(driver->domains, vm); > + vm = NULL; > + } > + > +cleanup: > + virURIFree(uri_p); > + if (vm) > + virObjectUnlock(vm); > + if (event) > + libxlDomainEventQueue(driver, event); > + virObjectUnref(cfg); > + return dom; > +} > + > +static int > +libxlDomainMigrateConfirm3(virDomainPtr domain, > + const char *cookiein ATTRIBUTE_UNUSED, > + int cookieinlen ATTRIBUTE_UNUSED, > + unsigned long flags, > + int cancelled) > +{ > + libxlDriverPrivatePtr driver = domain->conn->privateData; > + libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver); > + virDomainObjPtr vm; > + libxlDomainObjPrivatePtr priv; > + virDomainEventPtr event = NULL; > + int ret = -1; > + > + virCheckFlags(LIBXL_MIGRATION_FLAGS, -1); > + > + vm = virDomainObjListFindByUUID(driver->domains, domain->uuid); > + if (!vm) { > + char uuidstr[VIR_UUID_STRING_BUFLEN]; > + virUUIDFormat(domain->uuid, uuidstr); > + virReportError(VIR_ERR_NO_DOMAIN, > + _("no domain with matching uuid '%s'"), uuidstr); > + goto cleanup; > + } here. > + > + if (virDomainMigrateConfirm3EnsureACL(domain->conn, vm->def) < 0) > + goto cleanup; > + > + if (cancelled) { > + priv = vm->privateData; > + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", > + _("migration failed, try to resume on our end")); > + if (!libxl_domain_resume(priv->ctx, vm->def->id, 0, 0)) { > + ret = 0; > + } else { > + VIR_DEBUG("Failed to resume domain '%d' with libxenlight", > + vm->def->id); > + virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, > VIR_DOMAIN_PAUSED_MIGRATION); > + event = virDomainEventNewFromObj(vm, > VIR_DOMAIN_EVENT_SUSPENDED, > + > VIR_DOMAIN_EVENT_SUSPENDED_MIGRATED); > + if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0) > + goto cleanup; > + } > + > + goto cleanup; > + } > + > + if (libxlVmReap(driver, vm, VIR_DOMAIN_SHUTOFF_SAVED)) { > + virReportError(VIR_ERR_INTERNAL_ERROR, > + _("Failed to destroy domain '%d'"), vm->def->id); > + goto cleanup; > + } > + > + event = virDomainEventNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED, > + VIR_DOMAIN_EVENT_STOPPED_SAVED); > + > + if (flags & VIR_MIGRATE_UNDEFINE_SOURCE) > + virDomainDeleteConfig(cfg->configDir, cfg->autostartDir, vm); > + > + if (!vm->persistent || (flags & VIR_MIGRATE_UNDEFINE_SOURCE)) { > + virDomainObjListRemove(driver->domains, vm); > + vm = NULL; > + } > + > + VIR_DEBUG("Migration successful.\n"); > + ret = 0; > + > +cleanup: > + if (vm) > + virObjectUnlock(vm); > + if (event) > + libxlDomainEventQueue(driver, event); > + virObjectUnref(cfg); > + return ret; > +} > + > > static virDriver libxlDriver = { > .no = VIR_DRV_LIBXL, > @@ -4249,6 +4885,11 @@ static virDriver libxlDriver = { > #ifdef LIBXL_HAVE_DOMAIN_NODEAFFINITY > .domainGetNumaParameters = libxlDomainGetNumaParameters, /* 1.1.1 */ > #endif > + .domainMigrateBegin3 = libxlDomainMigrateBegin3, /* 1.1.3 */ > + .domainMigratePrepare3 = libxlDomainMigratePrepare3, /* 1.1.3 */ > + .domainMigratePerform3 = libxlDomainMigratePerform3, /* 1.1.3 */ > + .domainMigrateFinish3 = libxlDomainMigrateFinish3, /* 1.1.3 */ > + .domainMigrateConfirm3 = libxlDomainMigrateConfirm3, /* 1.1.3 */ > .nodeGetFreeMemory = libxlNodeGetFreeMemory, /* 0.9.0 */ > .nodeGetCellsFreeMemory = libxlNodeGetCellsFreeMemory, /* 1.1.1 */ > .connectDomainEventRegister = libxlConnectDomainEventRegister, /* > 0.9.0 */ > diff --git a/src/libxl/libxl_driver.h b/src/libxl/libxl_driver.h > index a33d60c..25ac2b8 100644 > --- a/src/libxl/libxl_driver.h > +++ b/src/libxl/libxl_driver.h > @@ -24,6 +24,11 @@ > #ifndef LIBXL_DRIVER_H > # define LIBXL_DRIVER_H > > +# define LIBXL_MIGRATION_FLAGS \ > + (VIR_MIGRATE_LIVE | \ > + VIR_MIGRATE_UNDEFINE_SOURCE | \ > + VIR_MIGRATE_PAUSED) > + > int libxlRegister(void); > > #endif /* LIBXL_DRIVER_H */ > -- > 1.6.0.2 > > -- > libvir-list mailing list > libvir-list(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvir-list >

1 0

[libvirt] [PATCH] virsh-volume: Add missing check when calling virStreamNew
by Hongwei Bi 30 Sep '13

30 Sep '13

Check return value of virStreamNew when called by cmdVolUpload and cmdVolDownload. --- tools/virsh-volume.c | 8 ++++++-- 1 files changed, 6 insertions(+), 2 deletions(-) diff --git a/tools/virsh-volume.c b/tools/virsh-volume.c index 7dab532..e8b0d9a 100644 --- a/tools/virsh-volume.c +++ b/tools/virsh-volume.c @@ -665,7 +665,9 @@ cmdVolUpload(vshControl *ctl, const vshCmd *cmd) goto cleanup; } - st = virStreamNew(ctl->conn, 0); + if (!(st = virStreamNew(ctl->conn, 0))) + goto cleanup; + if (virStorageVolUpload(vol, st, offset, length, 0) < 0) { vshError(ctl, _("cannot upload to volume %s"), name); goto cleanup; @@ -775,7 +777,9 @@ cmdVolDownload(vshControl *ctl, const vshCmd *cmd) created = true; } - st = virStreamNew(ctl->conn, 0); + if (!(st = virStreamNew(ctl->conn, 0))) + goto cleanup; + if (virStorageVolDownload(vol, st, offset, length, 0) < 0) { vshError(ctl, _("cannot download from volume %s"), name); goto cleanup; -- 1.7.1

2 2

[libvirt] libvirt: How to boot VM in esx?
by varun bhatnagar 30 Sep '13

30 Sep '13

Hi, Im not able to boot my VM on esx hypervisor using libvirt. It says NO Operating System found. Can anyone help? Regards, Varun

1 1

[libvirt] Build failed in Jenkins: libvirt-syntax-check #1531
by Jenkins CI 30 Sep '13

30 Sep '13

See <http://honk.sigxcpu.org:8001/job/libvirt-syntax-check/1531/> ------------------------------------------ Started by upstream project "libvirt-build" build number 1700 Building on master in workspace <http://honk.sigxcpu.org:8001/job/libvirt-syntax-check/ws/> [workspace] $ /bin/sh -xe /tmp/hudson4053703831105800586.sh + make syntax-check GEN bracket-spacing-check GFDL_version 0.48 GFDL_version TAB_in_indentation src/vmware/vmware_driver.c:163: break; src/vmware/vmware_driver.c:164: } maint.mk: indent with space, not TAB, in C, sh, html, py, syms and RNG schemas make: *** [sc_TAB_in_indentation] Error 1 Build step 'Execute shell' marked build as failure

2 2

[libvirt] [PATCHv3 1/2] VMware: Support more than 2 driver backends
by Doug Goldstein 29 Sep '13

29 Sep '13

Currently the VMware version check code only supports two types of VMware backends, Workstation and Player. But in the near future we will have an additional one so we need to support more. Additionally, we discover and cache the path to the vmrun binary so we should use that path when using the cooresponding binary from the VMware VIX SDK. --- change from v2: * No change change from v1: * Added default case so we don't potentially pass NULL to virCommand --- src/vmware/vmware_conf.c | 28 +++++++++++++++++++++++++--- src/vmware/vmware_driver.c | 20 ++++++++++++++++++-- 2 files changed, 43 insertions(+), 5 deletions(-) diff --git a/src/vmware/vmware_conf.c b/src/vmware/vmware_conf.c index 261a4f6..c11c92d 100644 --- a/src/vmware/vmware_conf.c +++ b/src/vmware/vmware_conf.c @@ -257,10 +257,30 @@ vmwareExtractVersion(struct vmware_driver *driver) { unsigned long version = 0; int ret = -1; - virCommandPtr cmd; + virCommandPtr cmd = NULL; char * outbuf = NULL; - const char * bin = (driver->type == VMWARE_DRIVER_PLAYER) ? - "vmplayer" : "vmware"; + char *bin = NULL; + char *vmwarePath = NULL; + + if ((vmwarePath = mdir_name(driver->vmrun)) == NULL) + goto cleanup; + + switch (driver->type) { + case VMWARE_DRIVER_PLAYER: + if (virAsprintf(&bin, "%s/%s", vmwarePath, "vmplayer")) + goto cleanup; + break; + + case VMWARE_DRIVER_WORKSTATION: + if (virAsprintf(&bin, "%s/%s", vmwarePath, "vmware")) + goto cleanup; + break; + + default: + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("invalid driver type for version detection")); + goto cleanup; + } cmd = virCommandNewArgList(bin, "-v", NULL); virCommandSetOutputBuffer(cmd, &outbuf); @@ -276,6 +296,8 @@ vmwareExtractVersion(struct vmware_driver *driver) cleanup: virCommandFree(cmd); VIR_FREE(outbuf); + VIR_FREE(bin); + VIR_FREE(vmwarePath); return ret; } diff --git a/src/vmware/vmware_driver.c b/src/vmware/vmware_driver.c index 4e56971..01d65ed 100644 --- a/src/vmware/vmware_driver.c +++ b/src/vmware/vmware_driver.c @@ -93,6 +93,7 @@ vmwareConnectOpen(virConnectPtr conn, { struct vmware_driver *driver; size_t i; + char *tmp; virCheckFlags(VIR_CONNECT_RO, VIR_DRV_OPEN_ERROR); @@ -144,8 +145,23 @@ vmwareConnectOpen(virConnectPtr conn, if (virMutexInit(&driver->lock) < 0) goto cleanup; - driver->type = STRNEQ(conn->uri->scheme, "vmwareplayer") ? - VMWARE_DRIVER_WORKSTATION : VMWARE_DRIVER_PLAYER; + if ((tmp = STRSKIP(conn->uri->scheme, "vmware")) == NULL) { + virReportError(VIR_ERR_INTERNAL_ERROR, _("unable to parse URI " + "scheme '%s'"), conn->uri->scheme); + goto cleanup; + } + + driver->type = -1; + for (i = 0; i < VMWARE_DRIVER_LAST; i++) { + if (STREQ(tmp, vmwareDriverTypeToString(i))) + driver->type = i; + } + + if (driver->type == -1) { + virReportError(VIR_ERR_INTERNAL_ERROR, _("unable to find valid " + "requested VMware backend '%s'"), tmp); + goto cleanup; + } if (!(driver->domains = virDomainObjListNew())) goto cleanup; -- 1.8.1.5

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[libvirt] [PATCH] build: fix build --without-lxc
by Eric Blake 28 Sep '13

28 Sep '13

'make distcheck' fails from a directory configured --without-lxc: GEN virt-login-shell.1 Can't write-open ../../tools/virt-login-shell.1: Permission denied at /usr/bin/pod2man line 69. * tools/Makefile.am (EXTRA_DIST): Ship pre-built man page. Signed-off-by: Eric Blake <eblake(a)redhat.com> --- Pushing under the build-breaker rule. tools/Makefile.am | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/Makefile.am b/tools/Makefile.am index 0193140..1d9892c 100644 --- a/tools/Makefile.am +++ b/tools/Makefile.am @@ -84,7 +84,9 @@ dist_man1_MANS = \ virsh.1 if WITH_LXC dist_man1_MANS += virt-login-shell.1 -endif WITH_LXC +else ! WITH_LXC +EXTRA_DIST += virt-login-shell.1 +endif ! WITH_LXC if WITH_SANLOCK dist_man8_MANS = virt-sanlock-cleanup.8 endif WITH_SANLOCK -- 1.8.3.1

1 1

[libvirt] [PATCH] build: tweak vpath builds of net_rpc
by Eric Blake 28 Sep '13

28 Sep '13

Another case missed by commits 716c7bb and 6973e02. * src/Makefile.am (VIR_NET_RPC_GENERATED): Drop $(srcdir). (libvirt_net_rpc_la_SOURCES): List generated files more compactly. Signed-off-by: Eric Blake <eblake(a)redhat.com> --- Pushing under the trivial rule. src/Makefile.am | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/src/Makefile.am b/src/Makefile.am index 2b4549e..8632b18 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -2194,19 +2194,18 @@ EXTRA_DIST += \ rpc/virkeepaliveprotocol.x VIR_NET_RPC_GENERATED = \ - $(srcdir)/rpc/virnetprotocol.h \ - $(srcdir)/rpc/virnetprotocol.c \ - $(srcdir)/rpc/virkeepaliveprotocol.h \ - $(srcdir)/rpc/virkeepaliveprotocol.c + rpc/virnetprotocol.h \ + rpc/virnetprotocol.c \ + rpc/virkeepaliveprotocol.h \ + rpc/virkeepaliveprotocol.c BUILT_SOURCES += $(VIR_NET_RPC_GENERATED) libvirt_net_rpc_la_SOURCES = \ rpc/virnetmessage.h rpc/virnetmessage.c \ - rpc/virnetprotocol.h rpc/virnetprotocol.c \ rpc/virnetsocket.h rpc/virnetsocket.c \ - rpc/virkeepaliveprotocol.h rpc/virkeepaliveprotocol.c \ - rpc/virkeepalive.h rpc/virkeepalive.c + rpc/virkeepalive.h rpc/virkeepalive.c \ + $(VIR_NET_RPC_GENERATED) if WITH_SSH2 libvirt_net_rpc_la_SOURCES += \ rpc/virnetsshsession.h rpc/virnetsshsession.c -- 1.8.3.1

1 0

[libvirt] [PATCHv2 0/4] Improve passthrough of early errors from qemu log
by Peter Krempa 28 Sep '13

28 Sep '13

Version 2 fixed according to review feedback of Jan. Peter Krempa (4): qemu_process: Make qemuProcessReadLog() more versatile and reusable qemu: monitor: Add infrastructure to access VM logs for better err msgs qemu: monitor: Produce better errors on monitor hangup qemu: Wire up better early error reporting src/qemu/qemu_monitor.c | 93 +++++++++++++++++++++++++++++++++++++++++++++---- src/qemu/qemu_monitor.h | 2 ++ src/qemu/qemu_process.c | 54 +++++++++++++++++++--------- src/qemu/qemu_process.h | 2 ++ 4 files changed, 129 insertions(+), 22 deletions(-) -- 1.8.3.2

3 7