linux-kernel - Re: [kvm-devel] [RFC] Deferred interrupt handling.

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Message-ID: <20070718183358.0a0886aa@the-village.bc.nu>
Date:	Wed, 18 Jul 2007 18:33:58 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Dor Laor" <dor.laor@...ranet.com>
Cc:	"Avi Kivity" <avi@...ranet.com>, <kvm-devel@...ts.sourceforge.net>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [kvm-devel] [RFC] Deferred interrupt handling.

> >> 	Guest0	-	blocked on I/O
> >>
> >> 	IRQ14 from your hardware
> >> 		Block IRQ14
> >> 		Sent to guest (guest is blocked)
> >>
> >> 	IRQ14 from hard disk
> >> 		Ignored (as blocked)
> >>
> 
> 
> But now the timer will pop and the hard disk will get its irq.
> The guest will be released right after.

How do you plan to do this ? If you unmask the interrupt then it will
immediately jam solid with IRQs from your hardware and the line will be
disabled.
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