From: Da Powah <dapowah@hotmail.com>
To: kvm@vger.kernel.org
Subject: Re: Passthrough of 2 PCI devices works 80% (Kernel 2.6.37, Debian Squeeze, Win7 VM)
Date: Sun, 20 Feb 2011 01:16:21 +0000 (UTC) [thread overview]
Message-ID: <loom.20110220T021122-679@post.gmane.org> (raw)
In-Reply-To: DUB104-w41D157D6FBD3D28801B97BABD70@phx.gbl
> Hi Alex,
>
> i got some more output and i am getting closer: i installed mythbuntu as vm and
> tested with both cards and with one only card via passthrough. One card
> assembled works nice, two cards assembled gives me an error: there is no
> frontend0 found in '/dev/dvb/adapter0/frontend0'. A look into both dmesg and a
> diff shows, that there is a change in the IRQ Number (10->11) and the eeprom of
> the device couldnt be read. I am not able to take a conclusion of that - maybe
> you can give me one more hint.
>
> I will try tomorrow to use both devices on 'bare metal' to make sure it is
> working in this configuration. More infos will come.
[....]
Hi Alex,
i tested on 'bare metal' and it worked - i was able to run a scan on both cards
and '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter1/frontend0' are
available. But the time i rund MythBuntu or any other vm with both cards passed
through, something goes wrong.
I`ve got 3 PCI slots behind that PCIe2PCI bridge and i swapped the cards among
them - it has no effect.
So i assume it depends on the kvm / kernel...
Some other suggestions ?
Kind Regards,
DP
next prev parent reply other threads:[~2011-02-20 1:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-19 22:53 Passthrough of 2 PCI devices works 80% (Kernel 2.6.37, Debian Squeeze, Win7 VM) Da Powah
2011-02-20 1:16 ` Da Powah [this message]
-- strict thread matches above, loose matches on Subject: below --
2011-02-15 20:57 Da Powah
2011-02-16 23:24 ` Alex Williamson
2011-02-17 19:39 ` Da Powah
2011-02-17 21:14 ` Da Powah
2011-02-22 11:48 ` Da Powah
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