From: Chris Wright <chrisw@sous-sol.org>
To: Jason Kwon <jkwon@redback.com>
Cc: kvm@vger.kernel.org
Subject: Re: KVM PCI passthrough IRQ limitations
Date: Tue, 3 Mar 2009 14:36:45 -0800 [thread overview]
Message-ID: <20090303223645.GC24280@sequoia.sous-sol.org> (raw)
In-Reply-To: <49ADAC06.5040407@redback.com>
* Jason Kwon (jkwon@redback.com) wrote:
> I am attempting to make use of '-pcidevice' on my system, but have run
> into some problems. First, my setup:
>
> Fedora 10 x86_64 host system
> 2.6.28.1-19.fc10 kernel from Koji
> KVM-84
You mean both userspace and kernel module built externally?
> % /usr/local/kvm/bin/qemu-system-x86_64 ./vdisk.img -m 384 -pcidevice
> host=02:00.0
> init_assigned_device: Registering real physical device 02:00.0 (bus=2
> dev=0 func=0)
> get_real_device: region 0 size 1024 start 0xe1200000 type 512 resource_fd 12
> Failed to assign irq for "02:00.0": Input/output error
> Perhaps you are assigning a device that shares an IRQ with another device?
any info in dmesg? what's lspci -t show?
next prev parent reply other threads:[~2009-03-03 22:36 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 [this message]
2009-03-03 23:26 ` Jason Kwon
2009-03-03 23:33 ` Chris Wright
2009-03-04 1:15 ` Jason Kwon
2009-03-04 1:58 ` Chris Wright
2009-03-04 2:35 ` Sheng Yang
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