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[Qemu-devel] [PATCH] PIC spurious interrupts

From: Hampa Hug
Subject: [Qemu-devel] [PATCH] PIC spurious interrupts
Date: Fri, 24 Sep 2004 01:27:52 +0200


This patch fixes two issues:

- Spurious interrupts do not occur in practice.
- If an unexpected spurious interrupt in the slave PIC is
  not acknowledged by the interrupt handler, no EOI will
  be sent to the master PIC (for IRQ 2), leaving all
  interrupts of lower priority disabled (unless SFN mode
  is used).

This patch fixes the OS/2 boot lock-up problem for me.


Attachment: qemu-pic.diff
Description: Text document

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