From: Fabrice Bellard <fabrice@bellard.org>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [RFC] IRQ acknowledge on MIPS
Date: Tue, 23 Jan 2007 21:22:51 +0100 [thread overview]
Message-ID: <45B66E9B.20100@bellard.org> (raw)
In-Reply-To: <200701231540.52240.paul@codesourcery.com>
Paul Brook wrote:
>>It should be good to have a well-defined modular IRQ routing
>>architecture in the Qemu.
>
>
> We've got most of one for the ARM targets (see hw/arm_pic.h). This file
> contains both the target independent bits and the ARM specific bits for
> emulating the CPU IRQ/FIQ pins.
>
> Annother possibility to abstract this to use a single interrupt line object
> rather than an {object,index} pair. This simplifies code that that raises
> interrupts, at the expense of some complication in the code to create
> interrupt controllers.
I prefer to have a new type 'QEMUBoolSignal' which can be used for any
boolean signal. A function could be called to change its level and
several clients could set a callback ("listener") to be informed that
its level changes.
Regards,
Fabrice.
next prev parent reply other threads:[~2007-01-23 20:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-23 0:48 [Qemu-devel] [RFC] IRQ acknowledge on MIPS Aurelien Jarno
2007-01-23 9:01 ` Aurelien Jarno
2007-01-23 15:27 ` Alexander Voropay
2007-01-23 15:40 ` Paul Brook
2007-01-23 20:22 ` Fabrice Bellard [this message]
2007-01-23 16:36 ` Aurelien Jarno
2007-01-23 9:06 ` Marius Groeger
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