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Re: [Xen-devel] PCI passthrough w/ shared IRQ in xen/master

To: Michael D Labriola <mlabriol@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] PCI passthrough w/ shared IRQ in xen/master
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Fri, 19 Feb 2010 16:06:51 +0000
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On 19/02/2010 15:56, "Michael D Labriola" <mlabriol@xxxxxxxx> wrote:

> Is this a bug in something (kernel or hypervisor) or a known limitation
> with pci passthrough...  I sure hope it's a bug, cause I need to fill all
> my PCI slots with cards that are going to get passed into different
> domUs...  :-/

Looks like dom0 doesn't like receiving interrupts that are actually intended
for the pass-thru device in the domU, complains and shuts down the interrupt
line, and then gets upset that its SATA IRQ has disappeared.

 -- Keir



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