HI, I am using kvm-kmod with version 2.6.36, but I encountered a fatal problem. In linux run on KVM,I using request(irq,*,*,*) function to request a interrupt line. However, When I using a irq bigger than 15, it will return error. Now I have simulated a PCI device and decide to using IOAPIC to send interrupts.So I decide assign 20,21 line for my device . but in guest os linux I could not request these number for my device. I know PIC just have 16 interrupt lines. I am not sure if the KVM really support APIC, and how to request a irq line more than 15?
Waiting for your help on line. Thanks.. Shawn.