Exemplo n.º 1
0
void qemuDomainReAttachHostdevDevices(struct qemud_driver *driver,
                                      const char *name,
                                      virDomainHostdevDefPtr *hostdevs,
                                      int nhostdevs)
{
    pciDeviceList *pcidevs;
    int i;

    if (!(pcidevs = qemuGetActivePciHostDeviceList(driver,
                                                   hostdevs,
                                                   nhostdevs))) {
        virErrorPtr err = virGetLastError();
        VIR_ERROR(_("Failed to allocate pciDeviceList: %s"),
                  err ? err->message : _("unknown error"));
        virResetError(err);
        return;
    }

    /* Again 3 loops; mark all devices as inactive before reset
     * them and reset all the devices before re-attach */
    for (i = 0; i < pciDeviceListCount(pcidevs); i++) {
        pciDevice *dev = pciDeviceListGet(pcidevs, i);
        pciDevice *activeDev = NULL;

        /* Never delete the dev from list driver->activePciHostdevs
         * if it's used by other domain.
         */
        activeDev = pciDeviceListFind(driver->activePciHostdevs, dev);
        if (activeDev &&
            STRNEQ_NULLABLE(name, pciDeviceGetUsedBy(activeDev))) {
            pciDeviceListSteal(pcidevs, dev);
            continue;
        }

        /* pciDeviceListFree() will take care of freeing the dev. */
        pciDeviceListSteal(driver->activePciHostdevs, dev);
    }

    for (i = 0; i < pciDeviceListCount(pcidevs); i++) {
        pciDevice *dev = pciDeviceListGet(pcidevs, i);
        if (pciResetDevice(dev, driver->activePciHostdevs,
                           driver->inactivePciHostdevs) < 0) {
            virErrorPtr err = virGetLastError();
            VIR_ERROR(_("Failed to reset PCI device: %s"),
                      err ? err->message : _("unknown error"));
            virResetError(err);
        }
    }

    for (i = 0; i < pciDeviceListCount(pcidevs); i++) {
        pciDevice *dev = pciDeviceListGet(pcidevs, i);
        qemuReattachPciDevice(dev, driver);
    }

    pciDeviceListFree(pcidevs);
}
Exemplo n.º 2
0
/**
 * virReleaseConnect:
 * @conn: the hypervisor connection to release
 *
 * Unconditionally release all memory associated with a connection.
 * The conn.lock mutex must be held prior to calling this, and will
 * be released prior to this returning. The connection obj must not
 * be used once this method returns.
 */
static void
virReleaseConnect(virConnectPtr conn) {
    VIR_DEBUG("release connection %p", conn);

    /* make sure to release the connection lock before we call the
     * close callbacks, otherwise we will deadlock if an error
     * is raised by any of the callbacks */
    virMutexUnlock(&conn->lock);

    if (conn->networkDriver)
        conn->networkDriver->close(conn);
    if (conn->interfaceDriver)
        conn->interfaceDriver->close(conn);
    if (conn->storageDriver)
        conn->storageDriver->close(conn);
    if (conn->deviceMonitor)
        conn->deviceMonitor->close(conn);
    if (conn->secretDriver)
        conn->secretDriver->close(conn);
    if (conn->nwfilterDriver)
        conn->nwfilterDriver->close(conn);
    if (conn->driver)
        conn->driver->close(conn);

    virMutexLock(&conn->lock);

    virResetError(&conn->err);

    virURIFree(conn->uri);

    virMutexUnlock(&conn->lock);
    virMutexDestroy(&conn->lock);
    VIR_FREE(conn);
}
Exemplo n.º 3
0
void qemuReattachPciDevice(pciDevice *dev, struct qemud_driver *driver)
{
    int retries = 100;

    /* If the device is not managed and was attached to guest
     * successfully, it must have been inactive.
     */
    if (!pciDeviceGetManaged(dev)) {
        if (pciDeviceListAdd(driver->inactivePciHostdevs, dev) < 0)
            pciFreeDevice(dev);
        return;
    }

    while (pciWaitForDeviceCleanup(dev, "kvm_assigned_device")
           && retries) {
        usleep(100*1000);
        retries--;
    }

    if (pciReAttachDevice(dev, driver->activePciHostdevs,
                          driver->inactivePciHostdevs) < 0) {
        virErrorPtr err = virGetLastError();
        VIR_ERROR(_("Failed to re-attach PCI device: %s"),
                  err ? err->message : _("unknown error"));
        virResetError(err);
    }
    pciFreeDevice(dev);
}
Exemplo n.º 4
0
static void
showError(virConnectPtr conn)
{
    int ret;
    virErrorPtr err;

    err = malloc(sizeof(*err));
    if (!err) {
        printf("Could not allocate memory for error data\n");
        goto out;
    }

    ret = virConnCopyLastError(conn, err);

    switch (ret) {
    case 0:
        printf("No error found\n");
        break;

    case -1:
        printf("Parameter error when attempting to get last error\n");
        break;

    default:
        printf("libvirt reported: \"%s\"\n", err->message);
        break;
    }

    virResetError(err);
    free(err);

out:
    return;
}
Exemplo n.º 5
0
/*
 * Internal helper to perform a deep copy of an error
 */
static int
virCopyError(virErrorPtr from,
             virErrorPtr to)
{
    int ret = 0;
    if (!to)
        return 0;
    virResetError(to);
    if (!from)
        return 0;
    to->code = from->code;
    to->domain = from->domain;
    to->level = from->level;
    if (VIR_STRDUP_QUIET(to->message, from->message) < 0)
        ret = -1;
    if (VIR_STRDUP_QUIET(to->str1, from->str1) < 0)
        ret = -1;
    if (VIR_STRDUP_QUIET(to->str2, from->str2) < 0)
        ret = -1;
    if (VIR_STRDUP_QUIET(to->str3, from->str3) < 0)
        ret = -1;
    to->int1 = from->int1;
    to->int2 = from->int2;
    /*
     * Deliberately not setting 'conn', 'dom', 'net' references
     */
    return ret;
}
Exemplo n.º 6
0
/**
 * virResetLastError:
 *
 * Reset the last error caught at the library level.
 *
 * The error object is kept in thread local storage, so separate
 * threads can safely access this concurrently, only resetting
 * their own error object.
 */
void
virResetLastError(void)
{
    virErrorPtr err = virLastErrorObject();
    if (err)
        virResetError(err);
}
Exemplo n.º 7
0
/*
 * Internal helper to perform a deep copy of the an error
 */
static int
virCopyError(virErrorPtr from,
             virErrorPtr to)
{
    int ret = 0;
    if (!to)
        return 0;
    virResetError(to);
    if (!from)
        return 0;
    to->code = from->code;
    to->domain = from->domain;
    to->level = from->level;
    if (from->message && !(to->message = strdup(from->message)))
        ret = -1;
    if (from->str1 && !(to->str1 = strdup(from->str1)))
        ret = -1;
    if (from->str2 && !(to->str2 = strdup(from->str2)))
        ret = -1;
    if (from->str3 && !(to->str3 = strdup(from->str3)))
        ret = -1;
    to->int1 = from->int1;
    to->int2 = from->int2;
    /*
     * Deliberately not setting 'conn', 'dom', 'net' references
     */
    return ret;
}
Exemplo n.º 8
0
void virNetClientStreamDispose(void *obj)
{
    virNetClientStreamPtr st = obj;

    virResetError(&st->err);
    VIR_FREE(st->incoming);
    virObjectUnref(st->prog);
}
Exemplo n.º 9
0
/**
 * virConnResetLastError:
 * @conn: pointer to the hypervisor connection
 *
 * The error object is kept in thread local storage, so separate
 * threads can safely access this concurrently.
 *
 * Reset the last error caught on that connection
 */
void
virConnResetLastError(virConnectPtr conn)
{
    if (conn == NULL)
        return;
    virObjectLock(conn);
    virResetError(&conn->err);
    virObjectUnlock(conn);
}
void StoragePoolControlThread::sendConnErrors()
{
    virtErrors = virConnGetLastError(currWorkConnect);
    if ( virtErrors!=NULL && virtErrors->code>0 ) {
        emit errorMsg( QString("VirtError(%1) : %2").arg(virtErrors->code)
                       .arg(QString().fromUtf8(virtErrors->message)) );
        virResetError(virtErrors);
    } else sendGlobalErrors();
}
Exemplo n.º 11
0
/*
 * Internal helper that is called when a thread exits, to
 * release the error object stored in the thread local
 */
static void
virLastErrFreeData(void *data)
{
    virErrorPtr err = data;
    if (!err)
        return;
    virResetError(err);
    VIR_FREE(err);
}
Exemplo n.º 12
0
/**
 * virConnResetLastError:
 * @conn: pointer to the hypervisor connection
 *
 * The error object is kept in thread local storage, so separate
 * threads can safely access this concurrently.
 *
 * Reset the last error caught on that connection
 */
void
virConnResetLastError(virConnectPtr conn)
{
    if (conn == NULL)
        return;
    virMutexLock(&conn->lock);
    virResetError(&conn->err);
    virMutexUnlock(&conn->lock);
}
Exemplo n.º 13
0
int virNetClientStreamSetError(virNetClientStreamPtr st,
                               virNetMessagePtr msg)
{
    virNetMessageError err;
    int ret = -1;

    virObjectLock(st);

    if (st->err.code != VIR_ERR_OK)
        VIR_DEBUG("Overwriting existing stream error %s", NULLSTR(st->err.message));

    virResetError(&st->err);
    memset(&err, 0, sizeof(err));

    if (virNetMessageDecodePayload(msg, (xdrproc_t)xdr_virNetMessageError, &err) < 0)
        goto cleanup;

    if (err.domain == VIR_FROM_REMOTE &&
        err.code == VIR_ERR_RPC &&
        err.level == VIR_ERR_ERROR &&
        err.message &&
        STRPREFIX(*err.message, "unknown procedure")) {
        st->err.code = VIR_ERR_NO_SUPPORT;
    } else {
        st->err.code = err.code;
    }
    if (err.message) {
        st->err.message = *err.message;
        *err.message = NULL;
    }
    st->err.domain = err.domain;
    st->err.level = err.level;
    if (err.str1) {
        st->err.str1 = *err.str1;
        *err.str1 = NULL;
    }
    if (err.str2) {
        st->err.str2 = *err.str2;
        *err.str2 = NULL;
    }
    if (err.str3) {
        st->err.str3 = *err.str3;
        *err.str3 = NULL;
    }
    st->err.int1 = err.int1;
    st->err.int2 = err.int2;

    st->incomingEOF = true;
    virNetClientStreamEventTimerUpdate(st);

    ret = 0;

 cleanup:
    xdr_free((xdrproc_t)xdr_virNetMessageError, (void*)&err);
    virObjectUnlock(st);
    return ret;
}
Exemplo n.º 14
0
static void qemuAgentDispose(void *obj)
{
    qemuAgentPtr mon = obj;
    VIR_DEBUG("mon=%p", mon);
    if (mon->cb && mon->cb->destroy)
        (mon->cb->destroy)(mon, mon->vm);
    virCondDestroy(&mon->notify);
    VIR_FREE(mon->buffer);
    virResetError(&mon->lastError);
}
Exemplo n.º 15
0
int virSystemdTerminateMachine(const char *name)
{
    int ret;
    DBusConnection *conn;
    virError error;

    if (!name)
        return 0;

    memset(&error, 0, sizeof(error));

    if ((ret = virSystemdHasMachined()) < 0)
        goto cleanup;

    ret = -1;

    if (!(conn = virDBusGetSystemBus()))
        goto cleanup;

    /*
     * The systemd DBus API we're invoking has the
     * following signature
     *
     * TerminateMachine(in  s name);
     *
     * @name a host unique name for the machine. shows up
     * in 'ps' listing & similar
     */

    VIR_DEBUG("Attempting to terminate machine via systemd");
    if (virDBusCallMethod(conn,
                          NULL,
                          &error,
                          "org.freedesktop.machine1",
                          "/org/freedesktop/machine1",
                          "org.freedesktop.machine1.Manager",
                          "TerminateMachine",
                          "s",
                          name) < 0)
        goto cleanup;

    if (error.level == VIR_ERR_ERROR &&
        STRNEQ_NULLABLE("org.freedesktop.machine1.NoSuchMachine",
                        error.str1)) {
        virReportErrorObject(&error);
        goto cleanup;
    }

    ret = 0;

 cleanup:
    virResetError(&error);

    return ret;
}
Exemplo n.º 16
0
void VM_Viewer::sendConnErrors()
{
    virtErrors = (NULL!=ptr_ConnPtr && *ptr_ConnPtr)?
                virConnGetLastError(*ptr_ConnPtr):NULL;
    if ( virtErrors!=NULL && virtErrors->code>0 ) {
        QString msg = QString("VirtError(%1) : %2").arg(virtErrors->code)
                .arg(QString().fromUtf8(virtErrors->message));
        emit errorMsg( msg );
        virResetError(virtErrors);
    } else sendGlobalErrors();
}
Exemplo n.º 17
0
static void
virConsoleDispose(void *obj)
{
    virConsolePtr con = obj;

    if (con->st)
        virStreamFree(con->st);

    virCondDestroy(&con->cond);
    virResetError(&con->error);
}
Exemplo n.º 18
0
/**
 * virConnectDispose:
 * @obj: the hypervisor connection to release
 *
 * Unconditionally release all memory associated with a connection.
 * The connection object must not be used once this method returns.
 */
static void
virConnectDispose(void *obj)
{
    virConnectPtr conn = obj;

    if (conn->driver)
        conn->driver->connectClose(conn);

    virResetError(&conn->err);

    virURIFree(conn->uri);
}
Exemplo n.º 19
0
/**
 * virCopyLastError:
 * @to: target to receive the copy
 *
 * Copy the content of the last error caught at the library level
 *
 * The error object is kept in thread local storage, so separate
 * threads can safely access this concurrently.
 *
 * One will need to free the result with virResetError()
 *
 * Returns 0 if no error was found and the error code otherwise and -1 in case
 *         of parameter error.
 */
int
virCopyLastError(virErrorPtr to)
{
    virErrorPtr err = virLastErrorObject();
    /* We can't guarantee caller has initialized it to zero */
    memset(to, 0, sizeof(*to));
    if (err)
        virCopyError(err, to);
    else
        virResetError(to);
    return to->code;
}
Exemplo n.º 20
0
QString _VirtThread::sendConnErrors()
{
    QString msg;
    virtErrors = (nullptr!=ptr_ConnPtr && *ptr_ConnPtr)?
                virConnGetLastError(*ptr_ConnPtr):nullptr;
    if ( virtErrors!=nullptr && virtErrors->code>0 ) {
        msg = QString("VirtError(%1) : %2").arg(virtErrors->code)
                .arg(QString().fromUtf8(virtErrors->message));
        emit errorMsg( msg, number );
        virResetError(virtErrors);
    } else
        msg = sendGlobalErrors();
    return msg;
}
Exemplo n.º 21
0
/**
 * virConnCopyLastError:
 * @conn: pointer to the hypervisor connection
 * @to: target to receive the copy
 *
 * Copy the content of the last error caught on that connection
 *
 * This method is not protected against access from multiple
 * threads. In a multi-threaded application, always use the
 * global virGetLastError() API which is backed by thread
 * local storage.
 *
 * If the connection object was discovered to be invalid by
 * an API call, then the error will be reported against the
 * global error object.
 *
 * Since 0.6.0, all errors reported in the per-connection object
 * are also duplicated in the global error object. As such an
 * application can always use virGetLastError(). This method
 * remains for backwards compatibility.
 *
 * One will need to free the result with virResetError()
 *
 * Returns 0 if no error was found and the error code otherwise and -1 in case
 *         of parameter error.
 */
int
virConnCopyLastError(virConnectPtr conn, virErrorPtr to)
{
    /* We can't guarantee caller has initialized it to zero */
    memset(to, 0, sizeof(*to));

    if (conn == NULL)
        return -1;
    virMutexLock(&conn->lock);
    if (conn->err.code == VIR_ERR_OK)
        virResetError(to);
    else
        virCopyError(&conn->err, to);
    virMutexUnlock(&conn->lock);
    return to->code;
}
Exemplo n.º 22
0
/**
 * virSetError:
 * @newerr: previously saved error object
 *
 * Set the current error from a previously saved error object
 *
 * Can be used to re-set an old error, which may have been squashed by
 * other functions (like cleanup routines).
 *
 * Returns 0 on success, -1 on failure.  Leaves errno unchanged.
 */
int
virSetError(virErrorPtr newerr)
{
    virErrorPtr err;
    int saved_errno = errno;
    int ret = -1;

    err = virLastErrorObject();
    if (!err)
        goto cleanup;

    virResetError(err);
    ret = virCopyError(newerr, err);
cleanup:
    errno = saved_errno;
    return ret;
}
Exemplo n.º 23
0
void virNetClientStreamFree(virNetClientStreamPtr st)
{
    virMutexLock(&st->lock);
    st->refs--;
    if (st->refs > 0) {
        virMutexUnlock(&st->lock);
        return;
    }

    virMutexUnlock(&st->lock);

    virResetError(&st->err);
    VIR_FREE(st->incoming);
    virMutexDestroy(&st->lock);
    virNetClientProgramFree(st->prog);
    VIR_FREE(st);
}
Exemplo n.º 24
0
/**
 * virCopyLastError:
 * @to: target to receive the copy
 *
 * Copy the content of the last error caught at the library level
 *
 * The error object is kept in thread local storage, so separate
 * threads can safely access this concurrently.
 *
 * One will need to free the result with virResetError()
 *
 * Returns error code or -1 in case of parameter error.
 */
int
virCopyLastError(virErrorPtr to)
{
    virErrorPtr err = virLastErrorObject();

    if (!to)
        return -1;

    /* We can't guarantee caller has initialized it to zero */
    memset(to, 0, sizeof(*to));
    if (err) {
        virCopyError(err, to);
    } else {
        virResetError(to);
        to->code = VIR_ERR_NO_MEMORY;
        to->domain = VIR_FROM_NONE;
        to->level = VIR_ERR_ERROR;
    }
    return to->code;
}
Exemplo n.º 25
0
/**
 * virConnectDispose:
 * @conn: the hypervisor connection to release
 *
 * Unconditionally release all memory associated with a connection.
 * The conn.lock mutex must be held prior to calling this, and will
 * be released prior to this returning. The connection obj must not
 * be used once this method returns.
 */
static void
virConnectDispose(void *obj)
{
    virConnectPtr conn = obj;

    if (conn->networkDriver)
        conn->networkDriver->networkClose(conn);
    if (conn->interfaceDriver)
        conn->interfaceDriver->interfaceClose(conn);
    if (conn->storageDriver)
        conn->storageDriver->storageClose(conn);
    if (conn->nodeDeviceDriver)
        conn->nodeDeviceDriver->nodeDeviceClose(conn);
    if (conn->secretDriver)
        conn->secretDriver->secretClose(conn);
    if (conn->nwfilterDriver)
        conn->nwfilterDriver->nwfilterClose(conn);
    if (conn->driver)
        conn->driver->connectClose(conn);

    virMutexLock(&conn->lock);

    virResetError(&conn->err);

    virURIFree(conn->uri);

    if (conn->closeCallback) {
        virObjectLock(conn->closeCallback);
        conn->closeCallback->callback = NULL;
        virObjectUnlock(conn->closeCallback);

        virObjectUnref(conn->closeCallback);
    }

    virMutexUnlock(&conn->lock);
    virMutexDestroy(&conn->lock);
}
Exemplo n.º 26
0
int virSystemdTerminateMachine(const char *name,
                               const char *drivername,
                               bool privileged)
{
    int ret;
    DBusConnection *conn;
    char *machinename = NULL;
    virError error;

    memset(&error, 0, sizeof(error));

    ret = virDBusIsServiceEnabled("org.freedesktop.machine1");
    if (ret < 0)
        goto cleanup;

    if ((ret = virDBusIsServiceRegistered("org.freedesktop.systemd1")) < 0)
        goto cleanup;

    ret = -1;

    if (!(conn = virDBusGetSystemBus()))
        goto cleanup;

    if (!(machinename = virSystemdMakeMachineName(name, drivername, privileged)))
        goto cleanup;

    /*
     * The systemd DBus API we're invoking has the
     * following signature
     *
     * TerminateMachine(in  s name);
     *
     * @name a host unique name for the machine. shows up
     * in 'ps' listing & similar
     */

    VIR_DEBUG("Attempting to terminate machine via systemd");
    if (virDBusCallMethod(conn,
                          NULL,
                          &error,
                          "org.freedesktop.machine1",
                          "/org/freedesktop/machine1",
                          "org.freedesktop.machine1.Manager",
                          "TerminateMachine",
                          "s",
                          machinename) < 0)
        goto cleanup;

    if (error.code == VIR_ERR_ERROR &&
        !STREQ_NULLABLE("org.freedesktop.machine1.NoSuchMachine",
                        error.str1)) {
        virReportErrorObject(&error);
        goto cleanup;
    }

    ret = 0;

 cleanup:
    virResetError(&error);

    VIR_FREE(machinename);
    return ret;
}
Exemplo n.º 27
0
/**
 * virSystemdCreateMachine:
 * @name: driver unique name of the machine
 * @drivername: name of the virt driver
 * @privileged: whether driver is running privileged or per user
 * @uuid: globally unique UUID of the machine
 * @rootdir: root directory of machine filesystem
 * @pidleader: PID of the leader process
 * @iscontainer: true if a container, false if a VM
 * @nnicindexes: number of network interface indexes in list
 * @nicindexes: list of network interface indexes
 * @partition: name of the slice to place the machine in
 *
 * Returns 0 on success, -1 on fatal error, or -2 if systemd-machine is not available
 */
int virSystemdCreateMachine(const char *name,
                            const char *drivername,
                            bool privileged,
                            const unsigned char *uuid,
                            const char *rootdir,
                            pid_t pidleader,
                            bool iscontainer,
                            size_t nnicindexes,
                            int *nicindexes,
                            const char *partition)
{
    int ret;
    DBusConnection *conn;
    char *machinename = NULL;
    char *creatorname = NULL;
    char *slicename = NULL;
    static int hasCreateWithNetwork = 1;

    ret = virDBusIsServiceEnabled("org.freedesktop.machine1");
    if (ret < 0)
        return ret;

    if ((ret = virDBusIsServiceRegistered("org.freedesktop.systemd1")) < 0)
        return ret;

    if (!(conn = virDBusGetSystemBus()))
        return -1;

    ret = -1;
    if (!(machinename = virSystemdMakeMachineName(name, drivername, privileged)))
        goto cleanup;

    if (virAsprintf(&creatorname, "libvirt-%s", drivername) < 0)
        goto cleanup;

    if (partition) {
        if (!(slicename = virSystemdMakeSliceName(partition)))
             goto cleanup;
    } else {
        if (VIR_STRDUP(slicename, "") < 0)
            goto cleanup;
    }

    /*
     * The systemd DBus APIs we're invoking have the
     * following signature(s)
     *
     * CreateMachineWithNetwork(in  s name,
     *                          in  ay id,
     *                          in  s service,
     *                          in  s class,
     *                          in  u leader,
     *                          in  s root_directory,
     *                          in  ai nicindexes
     *                          in  a(sv) scope_properties,
     *                          out o path);
     *
     * CreateMachine(in  s name,
     *               in  ay id,
     *               in  s service,
     *               in  s class,
     *               in  u leader,
     *               in  s root_directory,
     *               in  a(sv) scope_properties,
     *               out o path);
     *
     * @name a host unique name for the machine. shows up
     * in 'ps' listing & similar
     *
     * @id: a UUID of the machine, ideally matching /etc/machine-id
     * for containers
     *
     * @service: identifier of the client ie "libvirt-lxc"
     *
     * @class: either the string "container" or "vm" depending
     * on the type of machine
     *
     * @leader: main PID of the machine, either the host emulator
     * process, or the 'init' PID of the container
     *
     * @root_directory: the root directory of the container, if
     * this is known & visible in the host filesystem, or empty string
     *
     * @nicindexes: list of network interface indexes for the
     * host end of the VETH device pairs.
     *
     * @scope_properties:an array (not a dict!) of properties that are
     * passed on to PID 1 when creating a scope unit for your machine.
     * Will allow initial settings for the cgroup & similar.
     *
     * @path: a bus path returned for the machine object created, to
     * allow further API calls to be made against the object.
     *
     */

    VIR_DEBUG("Attempting to create machine via systemd");
    if (virAtomicIntGet(&hasCreateWithNetwork)) {
        virError error;
        memset(&error, 0, sizeof(error));

        if (virDBusCallMethod(conn,
                              NULL,
                              &error,
                              "org.freedesktop.machine1",
                              "/org/freedesktop/machine1",
                              "org.freedesktop.machine1.Manager",
                              "CreateMachineWithNetwork",
                              "sayssusa&ia(sv)",
                              machinename,
                              16,
                              uuid[0], uuid[1], uuid[2], uuid[3],
                              uuid[4], uuid[5], uuid[6], uuid[7],
                              uuid[8], uuid[9], uuid[10], uuid[11],
                              uuid[12], uuid[13], uuid[14], uuid[15],
                              creatorname,
                              iscontainer ? "container" : "vm",
                              (unsigned int)pidleader,
                              rootdir ? rootdir : "",
                              nnicindexes, nicindexes,
                              3,
                              "Slice", "s", slicename,
                              "After", "as", 1, "libvirtd.service",
                              "Before", "as", 1, "libvirt-guests.service") < 0)
            goto cleanup;

        if (error.level == VIR_ERR_ERROR) {
            if (virDBusErrorIsUnknownMethod(&error)) {
                VIR_INFO("CreateMachineWithNetwork isn't supported, switching "
                         "to legacy CreateMachine method for systemd-machined");
                virResetError(&error);
                virAtomicIntSet(&hasCreateWithNetwork, 0);
                /* Could re-structure without Using goto, but this
                 * avoids another atomic read which would trigger
                 * another memory barrier */
                goto fallback;
            }
            virReportErrorObject(&error);
            virResetError(&error);
            goto cleanup;
        }
    } else {
    fallback:
        if (virDBusCallMethod(conn,
                              NULL,
                              NULL,
                              "org.freedesktop.machine1",
                              "/org/freedesktop/machine1",
                              "org.freedesktop.machine1.Manager",
                              "CreateMachine",
                              "sayssusa(sv)",
                              machinename,
                              16,
                              uuid[0], uuid[1], uuid[2], uuid[3],
                              uuid[4], uuid[5], uuid[6], uuid[7],
                              uuid[8], uuid[9], uuid[10], uuid[11],
                              uuid[12], uuid[13], uuid[14], uuid[15],
                              creatorname,
                              iscontainer ? "container" : "vm",
                              (unsigned int)pidleader,
                              rootdir ? rootdir : "",
                              3,
                              "Slice", "s", slicename,
                              "After", "as", 1, "libvirtd.service",
                              "Before", "as", 1, "libvirt-guests.service") < 0)
            goto cleanup;
    }

    ret = 0;

 cleanup:
    VIR_FREE(creatorname);
    VIR_FREE(machinename);
    VIR_FREE(slicename);
    return ret;
}
Exemplo n.º 28
0
void qemuDomainReAttachHostdevDevices(struct qemud_driver *driver,
                                      const char *name,
                                      virDomainHostdevDefPtr *hostdevs,
                                      int nhostdevs)
{
    pciDeviceList *pcidevs;
    int i;

    if (!(pcidevs = qemuGetActivePciHostDeviceList(driver,
                                                   hostdevs,
                                                   nhostdevs))) {
        virErrorPtr err = virGetLastError();
        VIR_ERROR(_("Failed to allocate pciDeviceList: %s"),
                  err ? err->message : _("unknown error"));
        virResetError(err);
        return;
    }

    /* Again 4 loops; mark all devices as inactive before reset
     * them and reset all the devices before re-attach.
     * Attach mac and port profile parameters to devices
     */
    for (i = 0; i < pciDeviceListCount(pcidevs); i++) {
        pciDevice *dev = pciDeviceListGet(pcidevs, i);
        pciDevice *activeDev = NULL;

        /* Never delete the dev from list driver->activePciHostdevs
         * if it's used by other domain.
         */
        activeDev = pciDeviceListFind(driver->activePciHostdevs, dev);
        if (activeDev &&
            STRNEQ_NULLABLE(name, pciDeviceGetUsedBy(activeDev))) {
            pciDeviceListSteal(pcidevs, dev);
            continue;
        }

        /* pciDeviceListFree() will take care of freeing the dev. */
        pciDeviceListSteal(driver->activePciHostdevs, dev);
    }

    /*
     * For SRIOV net host devices, unset mac and port profile before
     * reset and reattach device
     */
    for (i = 0; i < nhostdevs; i++) {
         virDomainHostdevDefPtr hostdev = hostdevs[i];
         if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS)
             continue;
         if (hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
             continue;
         if (hostdev->parent.type == VIR_DOMAIN_DEVICE_NET &&
             hostdev->parent.data.net) {
             qemuDomainHostdevNetConfigRestore(hostdev, driver->stateDir);
         }
    }

    for (i = 0; i < pciDeviceListCount(pcidevs); i++) {
        pciDevice *dev = pciDeviceListGet(pcidevs, i);
        if (pciResetDevice(dev, driver->activePciHostdevs,
                           driver->inactivePciHostdevs) < 0) {
            virErrorPtr err = virGetLastError();
            VIR_ERROR(_("Failed to reset PCI device: %s"),
                      err ? err->message : _("unknown error"));
            virResetError(err);
        }
    }

    while (pciDeviceListCount(pcidevs) > 0) {
        pciDevice *dev = pciDeviceListStealIndex(pcidevs, 0);
        qemuReattachPciDevice(dev, driver);
    }

    pciDeviceListFree(pcidevs);
}
Exemplo n.º 29
0
void
qemuDomainReAttachHostdevDevices(virQEMUDriverPtr driver,
                                 const char *name,
                                 virDomainHostdevDefPtr *hostdevs,
                                 int nhostdevs)
{
    virPCIDeviceListPtr pcidevs;
    size_t i;
    virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);

    virObjectLock(driver->activePciHostdevs);
    virObjectLock(driver->inactivePciHostdevs);

    if (!(pcidevs = qemuGetActivePciHostDeviceList(driver,
                                                   hostdevs,
                                                   nhostdevs))) {
        virErrorPtr err = virGetLastError();
        VIR_ERROR(_("Failed to allocate PCI device list: %s"),
                  err ? err->message : _("unknown error"));
        virResetError(err);
        goto cleanup;
    }

    /* Again 4 loops; mark all devices as inactive before reset
     * them and reset all the devices before re-attach.
     * Attach mac and port profile parameters to devices
     */
    for (i = 0; i < virPCIDeviceListCount(pcidevs); i++) {
        virPCIDevicePtr dev = virPCIDeviceListGet(pcidevs, i);
        virPCIDevicePtr activeDev = NULL;

        /* delete the copy of the dev from pcidevs if it's used by
         * other domain. Or delete it from activePciHostDevs if it had
         * been used by this domain.
         */
        activeDev = virPCIDeviceListFind(driver->activePciHostdevs, dev);
        if (activeDev &&
            STRNEQ_NULLABLE(name, virPCIDeviceGetUsedBy(activeDev))) {
            virPCIDeviceListDel(pcidevs, dev);
            continue;
        }

        virPCIDeviceListDel(driver->activePciHostdevs, dev);
    }

    /* At this point, any device that had been used by the guest is in
     * pcidevs, but has been removed from activePciHostdevs.
     */

    /*
     * For SRIOV net host devices, unset mac and port profile before
     * reset and reattach device
     */
    for (i = 0; i < nhostdevs; i++) {
         virDomainHostdevDefPtr hostdev = hostdevs[i];
         if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS)
             continue;
         if (hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
             continue;
         if (hostdev->parent.type == VIR_DOMAIN_DEVICE_NET &&
             hostdev->parent.data.net) {
             qemuDomainHostdevNetConfigRestore(hostdev, cfg->stateDir);
         }
    }

    for (i = 0; i < virPCIDeviceListCount(pcidevs); i++) {
        virPCIDevicePtr dev = virPCIDeviceListGet(pcidevs, i);

        if (virPCIDeviceReset(dev, driver->activePciHostdevs,
                              driver->inactivePciHostdevs) < 0) {
            virErrorPtr err = virGetLastError();
            VIR_ERROR(_("Failed to reset PCI device: %s"),
                      err ? err->message : _("unknown error"));
            virResetError(err);
        }
    }

    while (virPCIDeviceListCount(pcidevs) > 0) {
        virPCIDevicePtr dev = virPCIDeviceListStealIndex(pcidevs, 0);
        qemuReattachPciDevice(dev, driver);
    }

    virObjectUnref(pcidevs);
cleanup:
    virObjectUnlock(driver->activePciHostdevs);
    virObjectUnlock(driver->inactivePciHostdevs);
    virObjectUnref(cfg);
}
Exemplo n.º 30
0
/**
 * virFreeError:
 * @err: error to free
 *
 * Resets and frees the given error.
 */
void
virFreeError(virErrorPtr err)
{
    virResetError(err);
    VIR_FREE(err);
}