On Sun, Mar 21, 2010 at 09:19:44PM +0100, Paolo Rivetti wrote:
> I can not assign the PCI card to the PV guest.
> When I start the machine I get the error: non-page-aligned MMIO BAR found
> I have the same configuration
> I'm using CentOS 5.4 and Xen 3.4.2
> I recompiled the kernel enabling PCI Backend inside the kernel (not as
> module) and PCI Backend Mode to Passthrogh.
> This is my grub.conf configuration
> title CentOS (2.6.18.8-xen-d2)
> root (hd0,0)
> kernel /xen.gz
> module /vmlinuz-2.6.18.8-xen-d2 ro root=/dev/vg0/lv0 rhgb quiet
> noreboot dom0_mem=1024M pciback.permissive pciback.hide=(.&checktime(0000,01,00,':').0)
> module /initrd-2.6.18.8-xen-d2.img
> xm create -c /etc/xen/of0
> Using config file "/etc/xen/of0".
> Error: pci: .&checktime(0000,01,00,':').0: non-page-aligned MMIO BAR found.
> There are a lot of emails on the internet, but few solutions, some have no
> idea what it is?
Did you try the reassigndev= option? 
That should fix the "non-page-aligned MMIO BAR found" issue.
-- Pasi
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