On 07/05/2009 06:48 PM, Gleb Natapov wrote:
The check for an edge is broken in current ioapic code. ioapic->irr is
cleared on each edge interrupt by ioapic_service() and this makes
old_irr != ioapic->irr condition in kvm_ioapic_set_irq() to be always
true. The patch fixes the code to properly recognise edge.
Some HW emulation calls set_irq() without level change. If each such
call is propagated to an OS it may confuse a device driver. This is the
case with keyboard device emulation and WindowsXP installer on SMP VM.
Each button stroke produce two interrupts (down/up) one interrupt is
submitted to CPU0 and another to CPU1. This confuses Windows somehow
and it ignores button strokes.
Signed-off-by: Gleb Natapov<[email protected]>
---
Same patch as before but split in two. First one fixes bug, second
make cosmetic changes.
Applied both, thanks.
--
error compiling committee.c: too many arguments to function
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