kernel: Support more than one I/O APIC and 24 interrupts.

git-svn-id: svn://kolibrios.org@7733 a494cfbc-eb01-0410-851d-a64ba20cac60
2020-03-02 04:25:30 +00:00
parent 57b2e6af66
commit cbceb320e8
5 changed files with 154 additions and 70 deletions
--- a/kernel/trunk/kernel.asm
+++ b/kernel/trunk/kernel.asm
@@ -715,7 +715,11 @@ endg
 ; Enable timer IRQ (IRQ0) and co-processor IRQ (IRQ13)
 ; they are used: when partitions are scanned, hd_read relies on timer
        call    unmask_timer
+        ; Prevent duplicate timer IRQs in APIC mode
+        cmp     [irq_mode], IRQ_APIC
+        jz      @f
        stdcall enable_irq, 2               ; @#$%! PIC
+@@:
        stdcall enable_irq, 13              ; co-processor

 ; Setup serial output console (if enabled)