[Xen-devel] Interrupt handler in Xen?

[Gu Nu <gnu04@xxxxxxxxx>]

Hi, all

 

I am reading Xen's source code. Currently it seems that I have some difficulty in finding the interrupt handlers of the virtual machine. In arch/xen/kernl/Evtchn.c, a fucntion

     int bind_virq_to_irq (int virq)

is defined to map virtual irq to irq. However, how can I find the handlers for these irq?

Take the network interrupts as an example, in arch/xen/drivers/network/Network.c,

 bind_virq_to_irq is called to set the interrupt handler. However, the source code is

 

  network_irq = bind_virq_to_irq(VIRQ_NET);

     ....

  No specific function pointers are mentioned in this process. So, how these interrupt

 handlers are set?

 

  Thanks a lot!

 

Andy

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