Re: [Xen-users] VT-d with Supermicro MBD-X10SAE-O

[Qubes Fan <qubesfan@xxxxxxxxx>]

> Hi all,
>
> I'm having difficulty getting VT-d to work correctly with a new Supermicro MBD-X10SAE-O in QubesOS,
> and I'm hoping someone here might be able to help me (or at least shed some light on my situation).
> A Qubes developer suggested I contact this list. Here's my HCL post from the qubes-users group (full thread):
> ----------------------------------------
> HCL Report (2013-06-17)
>
> > Qubes release 2 (R2)
> > Model Name:    Supermicro X10SAE
> >
> > Chipset:    00:00.0 Host bridge [0600]: Intel Corporation Haswell DRAM Controller [8086:0c08] (rev 06)
> > VGA:        01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI Juniper [Radeon HD 5700 Series] [1002:68b8]
> > CPU:        Intel(R) Xeon(R) CPU E3-1245 v3 @ 3.40GHz
> > BIOS:        1.00
> > VT-x:        Active
> > VT-d:        Not Active

> (...)

I've installed Xen 4.2.2 on this hardware with Fedora 18 as the host OS. The relevant output of 'sudo xl dmesg' is:

(XEN)  Intel VT-d iommu 0 supported page sizes: 4kB, 2MB, 1GB.
(XEN)  Intel VT-d Snoop Control enabled.
(XEN)  Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN)  Intel VT-d Queued Invalidation enabled.
(XEN)  Intel VT-d Interrupt Remapping enabled.
(XEN)  Intel VT-d Shared EPT tables enabled.
(XEN)  I/O virtualisation enabled

Does this confirm that the hardware is compatible with Xen with VT-d,
or does 'Dom0 DMA Passthrough' have to be enabled?

In case it is relevant, the output of 'xl info | grep ^virt_caps.*hvm_directio' is:

virt_caps : hvm hvm_directio

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