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Re: [Xen-devel] VT-D On An Asus P5E-VM DO Motherboard Not Working, Xen 3.4.1


  • To: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>
  • From: Michael MacLeod <mikemacleod@xxxxxxxxx>
  • Date: Sun, 27 Sep 2009 11:33:04 -0400
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Sun, 27 Sep 2009 08:33:31 -0700
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On Sun, Sep 27, 2009 at 3:39 AM, Sander Eikelenboom <linux@xxxxxxxxxxxxxx> wrote:
Hi Michael,

I have had the same with a asus P5Q-VM DO
It  seems  they  fuck  up  all bioses, and there response is that they
don't  support  anything  other than microsoft stuff. And are not very
sensitive to the fact that it doesn't adhere to the intel vt-d specs.

Commenting  out  a  check on the RMRR address having an "end address >
start address" helps.
But i don't have this problem in xen-unstable anymore, so i think the
check has been relaxt there.

Regards,

Sander

Sander,

I just built xen-unstable from source and gave it a go, but I get pretty much the same output and still no VT-d. Not being particularly familiar with the code in question, what's the best way to try and comment out the check completely?

(XEN) [VT-D]dmar.c:537: Host address width 36
(XEN) [VT-D]dmar.c:546: found ACPI_DMAR_DRHD
(XEN) [VT-D]dmar.c:373: dmaru->address = fed90000
(XEN) [VT-D]dmar.c:325: endpoint: 0:1b.0
(XEN) [VT-D]dmar.c:546: found ACPI_DMAR_DRHD
(XEN) [VT-D]dmar.c:373: dmaru->address = fed92000
(XEN) [VT-D]dmar.c:325: endpoint: 0:3.0
(XEN) [VT-D]dmar.c:325: endpoint: 0:3.2
(XEN) [VT-D]dmar.c:325: endpoint: 0:3.3
(XEN) [VT-D]dmar.c:546: found ACPI_DMAR_DRHD
(XEN) [VT-D]dmar.c:373: dmaru->address = fed93000
(XEN) [VT-D]dmar.c:385: found INCLUDE_ALL
(XEN) [VT-D]dmar.c:550: found ACPI_DMAR_RMRR
(XEN) [VT-D]dmar.c:325: endpoint: 0:1d.0
(XEN) [VT-D]dmar.c:325: endpoint: 0:1d.1
(XEN) [VT-D]dmar.c:325: endpoint: 0:1d.2
(XEN) [VT-D]dmar.c:325: endpoint: 0:1d.7
(XEN) [VT-D]dmar.c:325: endpoint: 0:1a.0
(XEN) [VT-D]dmar.c:325: endpoint: 0:1a.1
(XEN) [VT-D]dmar.c:325: endpoint: 0:1a.2
(XEN) [VT-D]dmar.c:325: endpoint: 0:1a.7
(XEN) [VT-D]dmar.c:550: found ACPI_DMAR_RMRR
(XEN) [VT-D]dmar.c:415: RMRR error: base_addr d0000000 end_address cfffffff
(XEN) Failed to parse ACPI DMAR.  Disabling VT-d.
 
Also, what Windows based virtualization software supports VT-d? Something so I can try leveraging Asus into actually fixing this problem.

Cheers,
Mike
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