On Fri, Apr 18, 2025 at 05:05:49PM -0400, Jason Andryuk wrote: > A PCI device's irq field is an 8-bit number. A value of 0xff indicates > that the device IRQ is not connected. Additionally, the Linux ACPI code > can convert these 0xff values to IRQ_NOTCONNECTED(0x80000000) because > "0x80000000 is guaranteed to be outside the available range of > interrupts and easy to distinguish from other possible incorrect > values." When the hypercall to assign that IRQ fails, device > passthrough as a whole fails. > > Add checking for a valid IRQ and skip the IRQ handling for PCI devices > outside that range. This allows for passthrough of devices without > legacy IRQs. > > Signed-off-by: Jason Andryuk <jason.andr...@amd.com>
Reviewed-by: Anthony PERARD <anthony.per...@vates.tech> Thanks, -- Anthony PERARD
