Re: [Xen-API] [Xen-users] XCP 1.6 beta Ram restriction for pci passthrough to pv Ubuntu 12.04 template

["Markus Rhonheimer" <markus.rhonheimer@xxxxxx>]

Thank you for the answer.

> Gesendet: Sonntag, 28. Oktober 2012 um 14:35 Uhr
> Von: "Pasi KÃrkkÃinen" <pasik@xxxxxx>
> An: "Markus Rhonheimer" <markus.rhonheimer@xxxxxx>
> Cc: xen-users@xxxxxxxxxxxxx, xen-api@xxxxxxxxxxxxx
> Betreff: Re: [Xen-users] [Xen-API] XCP 1.6 beta Ram restriction for pci 
> passthrough to pv Ubuntu 12.04 template
>
> On Wed, Oct 24, 2012 at 06:41:39PM +0200, Markus Rhonheimer wrote:
> > Hi,
> > 
> > I use XCP 1.6.06 with a Ubuntu 12.04 64bit pv domU created with the 
> > template through xencenter 6.1.
> > I also used this command on xcp: xe vm-param-set 
> > other-config:pci=0/0000:00:1f.2 uuid=d6eb559e-af70-6f8e-d10f-62fc9f73db89 
> > which passes a "SATA controller: Intel Corporation 6 Series/C200 Series 
> > Chipset Family SATA AHCI Controller (rev 05)" through to the domU. extlinux 
> > boot configuration has the passthrough option.
> > After booting the domU lspci shows the passed through device but none of 
> > the attached HDDs are visible.
> > This message can be seen within dmesg:
> > 
> 
> <snip>
> 
> > 
> > The domU has about 8GB of Ram and therefore this bug seems to apply:
> > 
> > http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1673
> > 
> > This report mentions a more detailed thread at:
> > 
> > http://www.gossamer-threads.com/lists/xen/devel/187533
> > 
> > These are further informations about the host:
> > 
> >
> 
> <snip>
>  
> > The kernel version of the Ubuntu domU is:
> > 
> > 3.2.0-32-generic
> > 
> > I would appreciate any help. 
> > Thanks in advance
> > 
> 
> Linux 3.2.0 does not support PCI passthru with >3G of RAM.
> The issues is fixed in xen-pcifront driver in later kernel versions.
> 
> -- Pasi
> 
> 
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