andrzej zaborowski wrote:
This allows multiple PCI devices on a bus to use the same IRQ lines.
The signals from all devices are ORed. It will only work if the guest
OS'es drivers supports that.
Linux guest required that to have scsi disks and usb devices working
at the same time on an emulated Versatile PB machine.
PCI IRQ sharing is already implemented, at least for piix3. You should
look at that code and try to fix the related code in other PCI controllers.
Regards,
Fabrice.
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