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

["Neo Jia" <neojia@xxxxxxxxx>]

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 ***

Thanks,
Neo

-- 
I would remember that if researchers were not ambitious
probably today we haven't the technology we are using!

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