[libvirt] [PATCH] qemu: auto-add generic xhci rather than NEC xhci to Q35 domains

We recently added a generic XHCI USB3 controller to QEMU, and libvirt supports adding that controller rather than the NEC XHCI USB3 controller, but when auto-adding a USB controller to Q35 domains we were still adding the vendor-specific NEC controller. This patch changes to add the generic controller instead, if it's available in the QEMU binary that will be used. --- src/qemu/qemu_domain.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 1676c03fc..6b4bd3cca 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -2660,12 +2660,13 @@ qemuDomainDefAddDefaultDevices(virDomainDefPtr def, addPCIeRoot = true; addImplicitSATA = true; - /* Prefer adding USB3 controller if supported - * (nec-usb-xhci). Failing that, add a USB2 controller set - * if the ich9-usb-ehci1 device is supported. Otherwise - * don't add anything. + /* Prefer adding a USB3 controller if supported, fall back + * to USB2 if there is no USB3 available, and if that's + * unavailable don't add anything. */ - if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NEC_USB_XHCI)) + if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_QEMU_XHCI)) + usbModel = VIR_DOMAIN_CONTROLLER_MODEL_USB_QEMU_XHCI; + else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NEC_USB_XHCI)) usbModel = VIR_DOMAIN_CONTROLLER_MODEL_USB_NEC_XHCI; else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_ICH9_USB_EHCI1)) usbModel = VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_EHCI1; -- 2.14.3