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[Xen-users] Re: VT-D On An Asus P5E-VM DO

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Subject: [Xen-users] Re: VT-D On An Asus P5E-VM DO
From: Christian Tramnitz <chris.ace@xxxxxxx>
Date: Wed, 23 Sep 2009 11:27:25 +0200
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Michael MacLeod wrote:
A little googling suggests this is a BIOS issue. I recently upgraded my BIOS to the latest version in order to see if that would resolve a different problem (it didn't), so now I'm wondering if VT-D would be working on an older BIOS revision.

Anyone with an Asus P5E-VM DO and VT-D working care to tell me which revision their BIOS is?

I do have a P5E-VM DO running with VT-d using BIOS 0702.
Good to know it breaks when upgrading, I was tempted to give it a try recently...

I do have error messages like this:
(XEN) [VT-D]iommu.c:722: iommu_page_fault: iommu->reg = ffff828bfff56000
(XEN) [VT-D]iommu.c:691: iommu_fault_status: Fault Overflow
(XEN) [VT-D]iommu.c:694: iommu_fault_status: Primary Pending Fault
(XEN) [VT-D]iommu.c:676: iommu_fault:DMA Write: 0:2.0 addr 400000000 REASON 5 iommu->reg = ffff828bfff56000
(XEN) print_vtd_entries: iommu = ffff83022bde62d0 bdf = 0:2:0 gmfn = 400000
(XEN)     root_entry = ffff83022bdcf000
(XEN)     root_entry[0] = 224cc8001
(XEN)     context = ffff830224cc8000
(XEN)     context[10] = 101_22bdb3001
(XEN)     l3 = ffff83022bdb3000
(XEN)     l3_index = 10
(XEN)     l3[10] = 0
(XEN)     l3[10] not present

But VT-d gets enabled nevertheless and actual pass-through was also working the last time I tried...

Best regards,

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