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PCI/ACPI: Add stacked IRQ domain support to PCI Interrupt Link
The ResourceSource field of an Extended Interrupt Descriptor was ignored when the driver is parsing _PRS method of PNP0C0F PCI Interrupt Link devices, which means PCI INTx would be always registered under the GSI domain. This patch introduces stacked IRQ domain support to PCI Interrupt Link devices for ACPI. With this support, we can populate the ResourceSource field in _PRS method of PCI Interrupt Link devices to refer to a device object that describes an interrupt controller as the following examples: Device (IXIU) { ... } Device(LINKA) { Name(_HID, EISAID("PNP0C0F")) Name(_PRS, ResourceTemplate(){ Interrupt(ResourceProducer, Level, ActiveHigh, Exclusive, 0, "\\SB.IXIU") { 60 } }) ... } Signed-off-by: Chen Baozi <chenbaozi@phytium.com.cn>
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