It's possible to compile QEMU without the USB devices (e.g. when using
"--without-default-devices" as option for the "configure" script).
To be still able to run the loongson3-virt machine in default mode with
such a QEMU binary, we have to check here for the availability of the
OHCI controller first before instantiating the USB devices.
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
v3: Back to runtime detection, but more simple this time compared to v1
(checking for OHCI should be enough, since this implies CONFIG_USB
which is the switch that usb-kbd and usb-tablet are depending on)
hw/mips/loongson3_virt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/mips/loongson3_virt.c b/hw/mips/loongson3_virt.c
index 4018b8c1d3..3ad0a223df 100644
--- a/hw/mips/loongson3_virt.c
+++ b/hw/mips/loongson3_virt.c
@@ -447,7 +447,7 @@ static inline void loongson3_virt_devices_init(MachineState *machine,
pci_vga_init(pci_bus);
- if (defaults_enabled()) {
+ if (defaults_enabled() && object_class_by_name("pci-ohci")) {
pci_create_simple(pci_bus, -1, "pci-ohci");
usb_create_simple(usb_bus_find(-1), "usb-kbd");
usb_create_simple(usb_bus_find(-1), "usb-tablet");
--
2.39.3