Hi everyone, I've been working on an interrupt controller for powerpc-based bare metal code program. I have been unable to successfully set off an external interrupt. In my interrupt controller, the function qemu_irq_raise() is called to set off the interrupt. When my bare metal program sets off the interrupt, I confirmed qemu_irq_raise() is called. The internal qemu handlers ppc6xx_set_irq() and ppc_set_irq() are called as well after qemu_rq_raise(). The code however does not jump to the desired interrupt address (0xfff00500) but rather continues on executing as if the interrupt has never occurred.
I was wondering if I am missing any important concepts with getting an external interrupt to occur. My bare metal program updates the MSR to enable external interrupts before an interrupt occurs. I also confirmed that the MSR is set correctly by viewing the register contents through GDB. I think there is an issue with the interrupt controller I developed that I might have missed. Any pointers or suggestions would be much appreciated. Thanks!
