• Jonathan Currier's avatar
    Introduce SPR_KAIVB for interrupt vector table relocation. · d491878d
    Jonathan Currier authored
    The PowerPC ISA allows for some amount of interrupt vector table
    relocation, but it is defined in the context of a hypervisor.
    
    Kestrel/microwatt does not implement hypervisor, and so lacks the
    associated registers and logic.
    
    Introduce a simple register to set the interrupt vector table base.
    Kestrel arch interrupt vector base: KAIVB.
    
    Provides mapping of 48 bits (bits 14:61) of a 16KiB aligned table.
    d491878d
common.vhdl 17.9 KB