Some SoCs have the limitation that PME/AER can't work over MSI. And vendors route the AER/PME via the dedicated SPI interrupt which is only handled by the controller driver. Add the generic get_service_irqs() callback for bridge, to let portdrv can fetch the vendor specific AER/PME interrupter by it. Closes: https://lore.kernel.org/linux-pci/20250702223841.GA1905230@bhelgaas/ Tested on LS1046A RDB board, the AER interrupter can be triggered by pull-out of EP device based on v6.16 kernel. [PATCH v1 1/2] PCI/portdrv: Use get_service_irqs() callback to get [PATCH v1 2/2] PCI: dwc: Fetch dedicated AER/PME interrupters drivers/pci/controller/dwc/pcie-designware-host.c | 32 ++++++++++++++++++++++++++++++++ drivers/pci/pcie/portdrv.c | 7 +++++++ include/linux/pci.h | 1 +