static int
libxlMakeDiskList(virDomainDefPtr def, libxl_domain_config *d_config)
{
virDomainDiskDefPtr *l_disks = def->disks;
int ndisks = def->ndisks;
libxl_device_disk *x_disks;
size_t i;
if (VIR_ALLOC_N(x_disks, ndisks) < 0)
return -1;
for (i = 0; i < ndisks; i++) {
if (libxlMakeDisk(l_disks[i], &x_disks[i]) < 0)
goto error;
}
d_config->disks = x_disks;
d_config->num_disks = ndisks;
return 0;
error:
for (i = 0; i < ndisks; i++)
libxl_device_disk_dispose(&x_disks[i]);
VIR_FREE(x_disks);
return -1;
}
static void devices_teardown_cb(libxl__egc *egc,
libxl__multidev *multidev,
int rc)
{
int i;
STATE_AO_GC(multidev->ao);
/* Convenience aliases */
libxl__checkpoint_devices_state *const cds =
CONTAINER_OF(multidev, *cds, multidev);
/* clean nic */
for (i = 0; i < cds->num_nics; i++)
libxl_device_nic_dispose(&cds->nics[i]);
free(cds->nics);
cds->nics = NULL;
cds->num_nics = 0;
/* clean disk */
for (i = 0; i < cds->num_disks; i++)
libxl_device_disk_dispose(&cds->disks[i]);
free(cds->disks);
cds->disks = NULL;
cds->num_disks = 0;
cds->callback(egc, cds, rc);
}
void libxl_domain_config_dispose(libxl_domain_config *d_config)
{
int i;
for (i=0; i<d_config->num_disks; i++)
libxl_device_disk_dispose(&d_config->disks[i]);
free(d_config->disks);
for (i=0; i<d_config->num_nics; i++)
libxl_device_nic_dispose(&d_config->nics[i]);
free(d_config->nics);
for (i=0; i<d_config->num_pcidevs; i++)
libxl_device_pci_dispose(&d_config->pcidevs[i]);
free(d_config->pcidevs);
for (i=0; i<d_config->num_vfbs; i++)
libxl_device_vfb_dispose(&d_config->vfbs[i]);
free(d_config->vfbs);
for (i=0; i<d_config->num_vkbs; i++)
libxl_device_vkb_dispose(&d_config->vkbs[i]);
free(d_config->vkbs);
libxl_domain_create_info_dispose(&d_config->c_info);
libxl_domain_build_info_dispose(&d_config->b_info);
}
static void devices_teardown_cb(libxl__egc *egc,
libxl__multidev *multidev,
int rc)
{
int i;
STATE_AO_GC(multidev->ao);
/* Convenience aliases */
libxl__remus_devices_state *const rds =
CONTAINER_OF(multidev, *rds, multidev);
/* clean nic */
for (i = 0; i < rds->num_nics; i++)
libxl_device_nic_dispose(&rds->nics[i]);
free(rds->nics);
rds->nics = NULL;
rds->num_nics = 0;
/* clean disk */
for (i = 0; i < rds->num_disks; i++)
libxl_device_disk_dispose(&rds->disks[i]);
free(rds->disks);
rds->disks = NULL;
rds->num_disks = 0;
cleanup_device_subkind(rds);
rds->callback(egc, rds, rc);
}
int hyperxl_disk_remove(libxl_ctx* ctx, uint32_t domid,hyperxl_disk_config* config) {
libxl_device_disk disk;
int ret = -1;
hyperxl_config_disk(config, &disk);
if (libxl_device_disk_remove(ctx, domid, &disk, 0) ) {
goto cleanup;
}
ret = 0;
cleanup:
libxl_device_disk_dispose(&disk);
return ret;
}
/*
* For details on xl disk config syntax, see
* docs/misc/xl-disk-configuration.txt in the Xen sources. The important
* section of text is:
*
* More formally, the string is a series of comma-separated keyword/value
* pairs, flags and positional parameters. Parameters which are not bare
* keywords and which do not contain "=" symbols are assigned to the
* so-far-unspecified positional parameters, in the order below. The
* positional parameters may also be specified explicitly by name.
*
* Each parameter may be specified at most once, either as a positional
* parameter or a named parameter. Default values apply if the parameter
* is not specified, or if it is specified with an empty value (whether
* positionally or explicitly).
*
* Whitespace may appear before each parameter and will be ignored.
*
* The order of the positional parameters mentioned in the quoted text is:
*
* target,format,vdev,access
*
* The following options must be specified by key=value:
*
* devtype=<devtype>
* backendtype=<backend-type>
*
* The following options are currently not supported:
*
* backend=<domain-name>
* script=<script>
* direct-io-safe
*
*/
static int
xenParseXLDisk(virConfPtr conf, virDomainDefPtr def)
{
int ret = -1;
virConfValuePtr list = virConfGetValue(conf, "disk");
XLU_Config *xluconf;
libxl_device_disk *libxldisk;
virDomainDiskDefPtr disk = NULL;
if (VIR_ALLOC(libxldisk) < 0)
return -1;
if (!(xluconf = xlu_cfg_init(stderr, "command line")))
goto cleanup;
if (list && list->type == VIR_CONF_LIST) {
list = list->list;
while (list) {
const char *disk_spec = list->str;
if (list->type != VIR_CONF_STRING || list->str == NULL)
goto skipdisk;
libxl_device_disk_init(libxldisk);
if (xlu_disk_parse(xluconf, 1, &disk_spec, libxldisk))
goto fail;
if (!(disk = virDomainDiskDefNew(NULL)))
goto fail;
if (xenParseXLDiskSrc(disk, libxldisk->pdev_path) < 0)
goto fail;
if (VIR_STRDUP(disk->dst, libxldisk->vdev) < 0)
goto fail;
disk->src->readonly = !libxldisk->readwrite;
disk->removable = libxldisk->removable;
if (libxldisk->is_cdrom) {
if (virDomainDiskSetDriver(disk, "qemu") < 0)
goto fail;
virDomainDiskSetType(disk, VIR_STORAGE_TYPE_FILE);
disk->device = VIR_DOMAIN_DISK_DEVICE_CDROM;
if (!disk->src->path || STREQ(disk->src->path, ""))
disk->src->format = VIR_STORAGE_FILE_NONE;
else
disk->src->format = VIR_STORAGE_FILE_RAW;
} else {
switch (libxldisk->format) {
case LIBXL_DISK_FORMAT_QCOW:
disk->src->format = VIR_STORAGE_FILE_QCOW;
break;
case LIBXL_DISK_FORMAT_QCOW2:
disk->src->format = VIR_STORAGE_FILE_QCOW2;
break;
case LIBXL_DISK_FORMAT_VHD:
disk->src->format = VIR_STORAGE_FILE_VHD;
break;
case LIBXL_DISK_FORMAT_RAW:
case LIBXL_DISK_FORMAT_UNKNOWN:
disk->src->format = VIR_STORAGE_FILE_RAW;
break;
case LIBXL_DISK_FORMAT_EMPTY:
break;
}
switch (libxldisk->backend) {
case LIBXL_DISK_BACKEND_QDISK:
case LIBXL_DISK_BACKEND_UNKNOWN:
if (virDomainDiskSetDriver(disk, "qemu") < 0)
goto fail;
if (virDomainDiskGetType(disk) == VIR_STORAGE_TYPE_NONE)
virDomainDiskSetType(disk, VIR_STORAGE_TYPE_FILE);
break;
case LIBXL_DISK_BACKEND_TAP:
if (virDomainDiskSetDriver(disk, "tap") < 0)
goto fail;
virDomainDiskSetType(disk, VIR_STORAGE_TYPE_FILE);
break;
case LIBXL_DISK_BACKEND_PHY:
if (virDomainDiskSetDriver(disk, "phy") < 0)
goto fail;
virDomainDiskSetType(disk, VIR_STORAGE_TYPE_BLOCK);
break;
}
}
if (STRPREFIX(libxldisk->vdev, "xvd") ||
def->os.type != VIR_DOMAIN_OSTYPE_HVM)
disk->bus = VIR_DOMAIN_DISK_BUS_XEN;
else if (STRPREFIX(libxldisk->vdev, "sd"))
disk->bus = VIR_DOMAIN_DISK_BUS_SCSI;
else
disk->bus = VIR_DOMAIN_DISK_BUS_IDE;
if (VIR_APPEND_ELEMENT(def->disks, def->ndisks, disk) < 0)
goto fail;
libxl_device_disk_dispose(libxldisk);
skipdisk:
list = list->next;
}
}
ret = 0;
cleanup:
virDomainDiskDefFree(disk);
xlu_cfg_destroy(xluconf);
VIR_FREE(libxldisk);
return ret;
fail:
libxl_device_disk_dispose(libxldisk);
goto cleanup;
}
