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

[Michael MacLeod <mikemacleod@xxxxxxxxx>]

I've tried a few different BIOS revisions, still with no luck. I have some further info though:

root@monolith:~# xm dmesg | grep -C1 VT-D
(XEN) ACPI: HPET id: 0xffffffff base: 0xfed00000
(XEN) [VT-D]dmar.c:485: Host address width 36
(XEN) [VT-D]dmar.c:494: found ACPI_DMAR_DRHD
(XEN) [VT-D]dmar.c:349: dmaru->address = fed90000
(XEN) [VT-D]dmar.c:300: found endpoint: bdf = 0:1b.0
(XEN) [VT-D]dmar.c:494: found ACPI_DMAR_DRHD
(XEN) [VT-D]dmar.c:349: dmaru->address = fed92000
(XEN) [VT-D]dmar.c:300: found endpoint: bdf = 0:3.0
(XEN) [VT-D]dmar.c:300: found endpoint: bdf = 0:3.2
(XEN) [VT-D]dmar.c:300: found endpoint: bdf = 0:3.3
(XEN) [VT-D]dmar.c:494: found ACPI_DMAR_DRHD
(XEN) [VT-D]dmar.c:349: dmaru->address = fed93000
(XEN) [VT-D]dmar.c:358: found INCLUDE_ALL
(XEN) [VT-D]dmar.c:498: found ACPI_DMAR_RMRR
(XEN) [VT-D]dmar.c:300: found endpoint: bdf = 0:1d.0
(XEN) [VT-D]dmar.c:300: found endpoint: bdf = 0:1d.1
(XEN) [VT-D]dmar.c:300: found endpoint: bdf = 0:1d.2
(XEN) [VT-D]dmar.c:300: found endpoint: bdf = 0:1d.7
(XEN) [VT-D]dmar.c:300: found endpoint: bdf = 0:1a.0
(XEN) [VT-D]dmar.c:300: found endpoint: bdf = 0:1a.1
(XEN) [VT-D]dmar.c:300: found endpoint: bdf = 0:1a.2
(XEN) [VT-D]dmar.c:300: found endpoint: bdf = 0:1a.7
(XEN) [VT-D]dmar.c:498: found ACPI_DMAR_RMRR
(XEN) [VT-D]dmar.c:388: RMRR error: base_addr d0000000 end_address cfffffff
(XEN) Failed to parse ACPI DMAR.  Disabling VT-d.

root@monolith:~# acpidump -t DMAR
Wrong checksum for OEMB!
Wrong checksum for !

root@monolith:~# acpidump | grep -B3 -A20 DMAR
Wrong checksum for OEMB!
Wrong checksum for !

 @ 0xcff601b0
  0000: 00 4d 41 52 48 01 00 00 01 f5 41 4d 49 00 00 00  .MARH.....AMI...
  0010: 4f 45 4d 44 4d 41 52 00 01 00 00 00 4d 53 46 54  OEMDMAR.....MSFT
  0020: 97 00 00 00 23 00 00 00 00 00 00 00 00 00 00 00  ....#...........
  0030: 00 00 18 00 00 00 00 00 00 00 d9 fe 00 00 00 00  ................
  0040: 01 08 00 00 00 00 1b 00 00 00 28 00 00 00 00 00  ..........(.....
  0050: 00 20 d9 fe 00 00 00 00 01 08 00 00 00 00 03 00  . ..............
  0060: 01 08 00 00 00 00 03 02 01 08 00 00 00 00 03 03  ................
  0070: 00 00 10 00 01 00 00 00 00 30 d9 fe 00 00 00 00  .........0......
  0080: 01 00 58 00 00 00 00 00 00 d0 0e 00 00 00 00 00  ..X.............
  0090: ff ff 0e 00 00 00 00 00 01 08 00 00 00 00 1d 00  ................
  00a0: 01 08 00 00 00 00 1d 01 01 08 00 00 00 00 1d 02  ................
  00b0: 01 08 00 00 00 00 1d 07 01 08 00 00 00 00 1a 00  ................
  00c0: 01 08 00 00 00 00 1a 01 01 08 00 00 00 00 1a 02  ................
  00d0: 01 08 00 00 00 00 1a 07 01 00 18 00 00 00 00 00  ................
  00e0: 00 00 00 d0 00 00 00 00 ff ff ff cf 00 00 00 00  ................
  00f0: 01 00 58 00 00 00 00 00 00 00 fe cf 00 00 00 00  ..X.............
  0100: ff ff fe cf 00 00 00 00 01 08 00 00 00 00 1d 00  ................
  0110: 01 08 00 00 00 00 1d 01 01 08 00 00 00 00 1d 02  ................
  0120: 01 08 00 00 00 00 1d 07 01 08 00 00 00 00 1a 00  ................
  0130: 01 08 00 00 00 00 1a 01 01 08 00 00 00 00 1a 02  ................
  0140: 01 08 00 00 00 00 1a 07                          ........

From what I can tell AMI has screwed my BIOS so bad acpidump can't even determine which table IS the DMAR table, and that's what is preventing me from making VT-D work.

On Tue, Sep 22, 2009 at 7:01 PM, Michael MacLeod <mikemacleod@xxxxxxxxx> wrote:

Hello,

I've been trying to get VT-D working on my Xen installation for the last few days. I've got an Asus P5E-VM DO motherboard, which is explicitly listed on the VTdHowTo page of the wiki as supporting VT-d, and a Core 2 Quad CPU. I'm using Debian as my dom0 OS, and I've built Xen 3.4.1 from source.

The error I'm getting now is:
(XEN) [VT-D]dmar.c:388: RMRR error: base_addr d0000000 end_address cfffffff
(XEN) Failed to parse ACPI DMAR.  Disabling VT-d.

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?

Cheers,
Mike

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