search for: gicv_iar

...e A15 Virtual timer to create a timer instance. Once programmed, the virtual timer interrupt is injected into my guest's virtual CPU interface as expected and the interrupt is also forwarded to my guest. At this point, my RTOS's IRQ service routine is invoked which among other things reads GICV_IAR register to acknowledge the interrupt and then re-enables IRQs (to support nested interrupts) before calling the timer handler which is suppose to program the CNTV_CVAL register for the next tick. I notice that as soon as interrupts are re-enabled, the ISR is interrupted and the IRQ service routine...