> "In order to be faster, QEMU does not check at every basic block if an > hardware interrupt is pending. Instead, the user must asynchrously call a > specific function to tell that an interrupt is pending. This function > resets the chaining of the currently executing basic block. It ensures that > the execution will return soon in the main loop of the CPU emulator. Then > the main loop can test if the interrupt is pending and handle it." > What means "the user must asynchrously call a specific function..."? > > In which sense "user must"?
Whoever wants to raise the interrupt. > Which "Specific function"? Usually pic_set_irq_new. I recommend you look at how the existing hardware devices are implemented. That should answer most of your questions. I'd start with something simple like serial.c or pl050.c Paul _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
