[libvirt] [PATCH 12/17] Add functions for adding USB hubs to addrs
Walk through all the usb hubs in the domain definition
and create the corresponding structures in the
virDomainUSBAddressSet.
---
src/conf/domain_addr.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 99 insertions(+)
diff --git a/src/conf/domain_addr.c b/src/conf/domain_addr.c
index 58159ef..50d23b4 100644
--- a/src/conf/domain_addr.c
+++ b/src/conf/domain_addr.c
@@ -1428,6 +1428,97 @@ virDomainUSBAddressSetAddController(virDomainUSBAddressSetPtr
addrs,
}
+static ssize_t
+virDomainUSBAddressGetLastIdx(virDomainDeviceInfoPtr info)
+{
+ ssize_t i;
+ for (i = VIR_DOMAIN_DEVICE_USB_MAX_PORT_DEPTH - 1; i > 0; i--) {
+ if (info->addr.usb.port[i] != 0)
+ break;
+ }
+ return i;
+}
+
+
+/* Find the USBAddressHub structure representing the hub/controller
+ * that corresponds to the bus/port path specified by info.
+ * Returns the index of the requested port in targetIdx.
+ */
+static virDomainUSBAddressHubPtr
+virDomainUSBAddressFindPort(virDomainUSBAddressSetPtr addrs,
+ virDomainDeviceInfoPtr info,
+ int *targetIdx)
+{
+ virDomainUSBAddressHubPtr hub = NULL;
+ ssize_t i, lastIdx;
+
+ if (info->addr.usb.bus >= addrs->nbuses ||
+ !addrs->buses[info->addr.usb.bus]) {
+ virReportError(VIR_ERR_XML_ERROR, _("Missing USB bus %u"),
+ info->addr.usb.bus);
+ return NULL;
+ }
+ hub = addrs->buses[info->addr.usb.bus];
+
+ lastIdx = virDomainUSBAddressGetLastIdx(info);
+
+ for (i = 0; i < lastIdx; i++) {
+ /* ports are numbered from 1 */
+ int portIdx = info->addr.usb.port[i] - 1;
+
+ if (hub->nports <= portIdx) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("port %u out of range"),
+ info->addr.usb.port[i]);
+ return NULL;
+ }
+ hub = hub->hubs[portIdx];
+ }
+
+ *targetIdx = info->addr.usb.port[lastIdx] - 1;
+ return hub;
+}
+
+
+#define VIR_DOMAIN_USB_HUB_PORTS 8
+
+static int
+virDomainUSBAddressSetAddHub(virDomainUSBAddressSetPtr addrs,
+ virDomainHubDefPtr hub)
+{
+ virDomainUSBAddressHubPtr targetHub = NULL, newHub = NULL;
+ int ret = -1;
+ int portIdx;
+
+ VIR_DEBUG("Adding a USB hub with 8 ports");
+
+ if (!(newHub = virDomainUSBAddressHubNew(VIR_DOMAIN_USB_HUB_PORTS)))
+ goto cleanup;
+
+ if (hub->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("Wrong address type for USB hub"));
+ goto cleanup;
+ }
+
+ if (!(targetHub = virDomainUSBAddressFindPort(addrs, &(hub->info),
&portIdx)))
+ goto cleanup;
+
+ if (targetHub->hubs[portIdx]) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("Dupicate USB hub"));
+ goto cleanup;
+ }
+ targetHub->hubs[portIdx] = newHub;
+ newHub = NULL;
+
+ ret = 0;
+ cleanup:
+ virDomainUSBAddressHubFree(newHub);
+ return ret;
+}
+
+
int virDomainUSBAddressSetAddControllers(virDomainUSBAddressSetPtr addrs,
virDomainDefPtr def)
{
@@ -1440,5 +1531,13 @@ int virDomainUSBAddressSetAddControllers(virDomainUSBAddressSetPtr
addrs,
return -1;
}
}
+
+ for (i = 0; i < def->nhubs; i++) {
+ virDomainHubDefPtr hub = def->hubs[i];
+ if (hub->type == VIR_DOMAIN_HUB_TYPE_USB) {
+ if (virDomainUSBAddressSetAddHub(addrs, hub) < 0)
+ return -1;
+ }
+ }
return 0;
}
--
2.7.3