From: Yolkfull Chow <yzhou@redhat.com>
To: Aaron Clausen <mightymartianca@gmail.com>
Cc: kvm@vger.kernel.org
Subject: Re: PCI Passthrough Problem
Date: Fri, 22 Jan 2010 13:47:52 +0800 [thread overview]
Message-ID: <20100122054752.GA2438@aFu.nay.redhat.com> (raw)
In-Reply-To: <8ec0428d1001212124s5612718n190f51996c9354a9@mail.gmail.com>
On Thu, Jan 21, 2010 at 09:24:36PM -0800, Aaron Clausen wrote:
> I'm trying once again to get PCI passthrough working (KVM 84 on Ubuntu
> 9.10), and I'm getting this error :
>
> LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
> /usr/bin/kvm -S -M pc-0.11 -m 4096 -smp 4 -name mailserver -uuid
> 76a83471-e94a-3658-fa61-8eceaa74ffc2 -monitor
> unix:/var/run/libvirt/qemu/mailserver.monitor,server,nowait -localtime
> -boot c -drive file=,if=ide,media=cdrom,index=2 -drive
> file=/var/lib/libvirt/images/mailserver.img,if=virtio,index=0,boot=on
> -drive file=/var/lib/libvirt/images/mailserver-2.img,if=virtio,index=1
> -net nic,macaddr=54:52:00:1b:b2:56,vlan=0,model=virtio,name=virtio.0
> -net tap,fd=17,vlan=0,name=tap.0 -serial pty -parallel none -usb
> -usbdevice tablet -vnc 127.0.0.1:0 -k en-us -vga cirrus -pcidevice
> host=0a:01.0
> char device redirected to /dev/pts/0
> get_real_device: /sys/bus/pci/devices/0000:0a:01.0/config: Permission denied
> init_assigned_device: Error: Couldn't get real device (0a:01.0)!
> Failed to initialize assigned device host=0a:01.0
Seems libvirt initialize the PCI devices problem, you could manually unbind this
device from host kernel driver and try above command again.
For unbind this device please refer to :
http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVM
>
> Any thoughts?
>
> --
> Aaron Clausen
> mightymartianca@gmail.com
> --
> To unsubscribe from this list: send the line "unsubscribe kvm" in
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next prev parent reply other threads:[~2010-01-22 5:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-22 5:24 PCI Passthrough Problem Aaron Clausen
2010-01-22 5:47 ` Yolkfull Chow [this message]
-- strict thread matches above, loose matches on Subject: below --
2015-10-01 7:27 PCI passthrough problem Phil (list)
2015-10-01 12:32 ` Mauricio Tavares
2015-10-02 2:38 ` Phil (list)
2015-10-02 3:00 ` Alex Williamson
2015-10-02 20:09 ` Phil (list)
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