Choose drivers for hardware by PCI device ID

[diver]

From https://dev.haiku-os.org/ticket/5137#comment:8

Anyway, I guess the main points for boot time optimization are [...] choosing drivers for hardware more directly (e.g. by PCI device ID) instead of trying all of them.

[X512]

This is not restricted to PCI ID. Other device IDs exist such as USB ID, ACPI _HID, _CID etc.

[waddlesplash]

USB stack already picks by device ID (or more often, type/subtype.) HID are usually USB. ACPI drivers probably are not covered indeed.

However, the majority of any given boot these days in spent in packagefs, having poked at profiles. I think the time spent on device probes is surprisingly small. Finally writing a new kernel device manager is still a good idea though.

[phoudoin]

I guess packing some fast-matching metadata into each driver/device kernel module file's attributes could be a way to go here. Most wasted time is spent at loading module itself, executing the bit of code each device module have to lookup for supported hardware is most probably very small in comparison.

I don't think having some central database/config for that, the BFS kernel modules files can provide themselves such data already, taking leverage of BFS attributes.