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[Xen-ia64-devel] Re: [PATCH] [Open GFW] Only use irq 10 and 11 for pci u

To: "Zhang, Xiantao" <xiantao.zhang@xxxxxxxxx>
Subject: [Xen-ia64-devel] Re: [PATCH] [Open GFW] Only use irq 10 and 11 for pci use.
From: Tristan Gingold <tgingold@xxxxxxx>
Date: Thu, 27 Dec 2007 08:17:56 +0100
Cc: xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
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On Tue, Dec 25, 2007 at 03:22:37PM +0800, Zhang, Xiantao wrote:
> Hi Tristan, 
> This patch fixes possible failures on windows boot in some environment. 
> Since current piix3 and piix4 in qemu only uses irq 10 and irq 11 for
> pci irqs, so
> here don't need to assign irq 5 and irq 6 for this purpose. IRQ 6 may
> conflict
> with the irq of legacy floppy disk controllers. 

I fear that with only 2 bits set, only INTA and INTB will be set.
However from piix_pci-dm.c, it appears we don't really use INTA/D mapping.

Am I right ?

Tristan.

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