xen-devel
Re: [Xen-devel] pci pass-through, NIC card
Kay, Allen M wrote:
Does this happen during xen/dom0 boot time or during HVM guest boot?
Are you using and desktop or server platform? Are you using the latest
BIOS? Some older BIOS does not initialize VT-d HW properly.
Allen
It's a server platform, I could indeed check if it is the latest bios.
This is happen during the HVM guest boot, all initialisation in dom0 are
ok. The device I tried to pass-through was a pci NIC.
I have tried to pass-through a PCIe NIC and it works better, I mean the
hvm guest boot. The NIC card is well detected by the hvm guest but,
there is still a problem. When I tried to get an ip address from dhcp I
received a storm of "iommu_page_fault" (enclosed the log).
The pci device I try to pass-through is at the address 8:0:0.
I have disable the pci msi in the guest.
Thanks,
--
Jean Guyader
(XEN) [VT-D]iommu.c:882: iommu_page_fault: iommu->reg = ffff828bfff57000
(XEN) [VT-D]iommu.c:854: iommu_fault_status: Primary Pending Fault
(XEN) [VT-D]iommu.c:839: iommu_fault:DMA Read: 8:0.0 addr eb0f000 REASON c
iommu->reg = ffff828bfff57000
(XEN) print_vtd_entries: domain_id = 7fff bdf = 8:0:0 gmfn = eb0f
(XEN) hg->pgd == NULL
(XEN) [VT-D]io.c:265:d1 hvm_dpci_eoi:: mirq = 14
(XEN) [VT-D]iommu.c:882: iommu_page_fault: iommu->reg = ffff828bfff57000
(XEN) [VT-D]iommu.c:854: iommu_fault_status: Primary Pending Fault
(XEN) [VT-D]iommu.c:839: iommu_fault:DMA Read: 8:0.0 addr eb0f000 REASON c
iommu->reg = ffff828bfff57000
(XEN) print_vtd_entries: domain_id = 7fff bdf = 8:0:0 gmfn = eb0f
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