Hi, Dne 23. 10. 18 v 1:57 Marc Jones napsal(a): > Does VxWorks use the ACPI tables for IRQ routing? You might need that.
Yes good question. Usually OS uses ACPI, or MPTable or what BIOS provided in the PCI device itself. It seems because you are asking for the virtual wire mode IOAPIC is not supported and legacy PIC mode maybe needed? Does this OS configure LINT0 for ExtINT on at least one CPU? (this is how virtual wire can be implemented) Or second way to do that, is to program IO-APIC 0 or 2 depending on chipset to ExtInt. This will cause PIC interrupts to be delivered to the CPU. Please note that for PCI devices you also need to program PCI IRQ router and ELCR register if you are going to use the PIC mode, Thanks Rudolf -- coreboot mailing list: [email protected] https://mail.coreboot.org/mailman/listinfo/coreboot
