Hi, all I want to add a pci device just like pci-serial to QEMU, there are some qeustion while add a IRQ.
In the init() function, pci->dev.config[PCI_INTERRUPT_PIN] = 0x01; s->irq = pci->dev.irq[0]; In the write() function qemu_irq_raise(s->irq); if (val & 0xff) == 0x99) qemu_irq_low(s->irq); What i want to do is generate an interrupt when write to io port, and then the interrupt routine in Linux will response this IRQ. And write 0x99 , then the qemu_irq_low(s->irq); will be called. However, the interrupt routine is called all the time. What's the problem? What's the correct routine to add an interrupt? Thanks. andysycr...@gmail.com
