Hi, I use the following options to simulate USB devices.
-drive if=none,id=usbstick,file=usb.qcow2 \ -usb -device usb-ehci,id=ehci \ -device usb-tablet,bus=usb-bus.0 \ -device usb-storage,bus=ehci.0,drive=usbstick The contents in /proc/interrupts are: 0: 515 IO-APIC 2-edge timer 1: 63 IO-APIC 1-edge i8042 8: 1 IO-APIC 8-edge rtc0 9: 0 IO-APIC 9-fasteoi acpi 10: 127 IO-APIC 10-fasteoi ehci_hcd:usb1 11: 36 IO-APIC 11-fasteoi uhci_hcd:usb2 12: 5 IO-APIC 12-edge i8042 14: 93 IO-APIC 14-edge ata_piix 15: 6 IO-APIC 15-edge ata_piix I want to know why QEMU allocates irq-10 and irq-11 for the two USB devices. Can I make them above irq-15? Thanks! Regards, Hao Lee
