I compare 2 output of linux command "pci"
from both Linuxbios booted linux and a regular bios booted linux. 
There are no IRQ assignments for lots of devices including IDE
controller, SMBUS.
Does linuxbios assign IRQs at all in the code?


==========================
Linuxbios
==========================
Bus  0, device  31, function  1:
    IDE interface: Intel Corp. 82801CA IDE U100 (rev 2).
      I/O at 0x3080 [0x308f].
      Non-prefetchable 32 bit memory at 0xfe601000 [0xfe6013ff].
  Bus  0, device  31, function  3:
    SMBus: Intel Corp. 82801CA/CAM SMBus (rev 2).
      I/O at 0x3060 [0x307f].





=============================
regular bios 
============================
Bus  0, device  31, function  1:
    IDE interface: Intel Corp. 82801CA IDE U100 (rev 2).
      IRQ 12.
      I/O at 0xf000 [0xf00f].
      Non-prefetchable 32 bit memory at 0x3fff0000 [0x3fff03ff].
Bus  0, device  31, function  3:
    SMBus: Intel Corp. 82801CA/CAM SMBus (rev 2).
      IRQ 5.
      I/O at 0x500 [0x51f].


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