usb: tag standalone ehci as hotpluggable

Add a flag to EHCIPCIInfo saying whenever the controller supports
companions or not.  Make sure we only allow registering companions for
ehci versions supporting that.  Enable pci hotplug for the ehci
variants not supporting companions.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
index bacb7ce..1cc0fc1 100644
--- a/hw/usb/hcd-ehci.c
+++ b/hw/usb/hcd-ehci.c
@@ -2347,10 +2347,13 @@ static USBPortOps ehci_port_ops = {
     .complete = ehci_async_complete_packet,
 };
 
-static USBBusOps ehci_bus_ops = {
+static USBBusOps ehci_bus_ops_companion = {
     .register_companion = ehci_register_companion,
     .wakeup_endpoint = ehci_wakeup_endpoint,
 };
+static USBBusOps ehci_bus_ops_standalone = {
+    .wakeup_endpoint = ehci_wakeup_endpoint,
+};
 
 static void usb_ehci_pre_save(void *opaque)
 {
@@ -2456,7 +2459,8 @@ void usb_ehci_realize(EHCIState *s, DeviceState *dev, Error **errp)
         return;
     }
 
-    usb_bus_new(&s->bus, sizeof(s->bus), &ehci_bus_ops, dev);
+    usb_bus_new(&s->bus, sizeof(s->bus), s->companion_enable ?
+                &ehci_bus_ops_companion : &ehci_bus_ops_standalone, dev);
     for (i = 0; i < s->portnr; i++) {
         usb_register_port(&s->bus, &s->ports[i], s, i, &ehci_port_ops,
                           USB_SPEED_MASK_HIGH);