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Re: [Qemu-devel] [PATCH] IRQ sharing in PCI bus

From: Paul Brook
Subject: Re: [Qemu-devel] [PATCH] IRQ sharing in PCI bus
Date: Sat, 23 Sep 2006 18:43:04 +0100
User-agent: KMail/1.9.4

On Saturday 23 September 2006 18:38, Fabrice Bellard wrote:
> andrzej zaborowski wrote:
> > This allows multiple PCI devices on a bus to use the same IRQ lines.
> > The signals from all devices are ORed. It will only work if the guest
> > OS'es drivers supports that.
> >
> > Linux guest required that to have scsi disks and usb devices working
> > at the same time on an emulated Versatile PB machine.
> PCI IRQ sharing is already implemented, at least for piix3. You should
> look at that code and try to fix the related code in other PCI controllers.

Seems silly to implement this several times rather than once in generic code.


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