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xen-devel
RE: [Xen-devel] Error getting mfn for PCI SR-IOV device?
> Subject: Re: [Xen-devel] Error getting mfn for PCI SR-IOV device?
>
> >>> On 25.05.10 at 15:58, "Fischer, Anna" <anna.fischer@xxxxxx> wrote:
> > (XEN) mm.c:859:d0 Error getting mfn 40300 (pfn 5555555555555555) from
> L1
> > entry 8000000040300473 for l1e_owner=0, pg_owner=32753
> >...
> > entry 800000004037e473 for l1e_owner=0, pg_owner=32753
> > (XEN) mm.c:859:d0 Error getting mfn 4037f (pfn 5555555555555555) from
> L1
> > entry 800000004037f473 for l1e_owner=0, pg_owner=32753
> >
> > I boot Xen with 'dom0_mem=max:1024M iommu=0' set in GRUB. The system
> > supports VT-d, but I am disabling it.
>
> Would seem like the kernel assigns I/O memory space to the device,
> based on the physical (not machine) memory map it gets (making the
> assumption that there is RAM at 0x40000000 aka 1Gb). Does the
> behavior change if you remove the dom0_mem= option?
Yes, thanks, I was going to post to the list that the problem is solved, and
the issue was that the PCI BARs were allocated > 1G while I was only making
1024MB visible to Dom0. Now it works.
Thanks,
Anna
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