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From: Jason Kwon <jkwon@redback.com>
To: kvm@vger.kernel.org
Subject: Re: KVM PCI passthrough IRQ limitations
Date: Tue, 03 Mar 2009 17:15:57 -0800	[thread overview]
Message-ID: <49ADD64D.4000200@redback.com> (raw)
In-Reply-To: <20090303233336.GD24280@sequoia.sous-sol.org>

Chris Wright wrote:
> * Jason Kwon (jkwon@redback.com) wrote:
>> pci 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
>> IRQ handler type mismatch for IRQ 16
>> current handler: uhci_hcd:usb3
> 
> This is a shared interrupt (and pci device assignment will request a
> non-shared interrupt).  Are you using that usb host controller?  Can you
> unbind it?

I attempted unbinding the usb host driver, but the IRQ was/is also 
shared by the SATA drive controller, so I'm stuck.  I tried moving the 
card to a different slot but the IRQ assignments were the same.

Does it make any difference whether the device is MSI-capable or not?

Thanks,

Jason

  reply	other threads:[~2009-03-04  1:25 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-03 22:15 KVM PCI passthrough IRQ limitations Jason Kwon
2009-03-03 22:36 ` Chris Wright
2009-03-03 23:26   ` Jason Kwon
2009-03-03 23:33     ` Chris Wright
2009-03-04  1:15       ` Jason Kwon [this message]
2009-03-04  1:58         ` Chris Wright
2009-03-04  2:35         ` Sheng Yang

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