Re: [Xen-devel] VT-d warnings on Intel DQ35JO

[Jean Guyader <jean.guyader@xxxxxxxxxxxxx>]

Neo Jia wrote:
> hi,
>
> This is what I get on the Intel DQ35JO. Is it critical?
>
> (XEN) Brought up 2 CPUs
> (XEN) [VT-D]iommu.c:1700: Queued Invalidation hardware not found
> (XEN) [VT-D]iommu.c:1700: Queued Invalidation hardware not found
> (XEN) [VT-D]iommu.c:1700: Queued Invalidation hardware not found
> (XEN) [VT-D]iommu.c:1700: Queued Invalidation hardware not found
> (XEN) [VT-D]iommu.c:1708: Interrupt Remapping hardware not found
> (XEN) [VT-D]iommu.c:1708: Interrupt Remapping hardware not found
> (XEN) [VT-D]iommu.c:1708: Interrupt Remapping hardware not found
> (XEN) [VT-D]iommu.c:1708: Interrupt Remapping hardware not found
> (XEN) I/O virtualisation enabled
> (XEN) I/O virtualisation for PV guests disabled
> (XEN) [VT-D]iommu.c:764: iommu_page_fault: iommu->reg = ffff828bfff57000
> (XEN) [VT-D]iommu.c:733: iommu_fault_status: Fault Overflow
> (XEN) [VT-D]iommu.c:720: iommu_fault:DMA Write: 0:2.0 addr f00000000
> REASON 5 iommu->reg = ffff828bfff57000
> (XEN) print_vtd_entries: iommu = ffff83007aefb480 bdf = 0:2:0 gmfn = f00000
> (XEN)     root_entry = ffff83007c06e000
> (XEN)     root_entry[0] = 7c18b001
> (XEN)     context = ffff83007c18b000
> (XEN)     context[10] = 101_7d1dc001
> (XEN)     l3 = ffff83007d1dc000
> (XEN)     l3_index = 3c
> (XEN)     l3[3c] = 0
> (XEN)     l3[3c] not present
> (XEN) *** LOADING DOMAIN 0 ***
I had almost the same error with this same motherboard, you should 
upgrade your bios.
--
Jean Guyader

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