Re: [Xen-devel] VT-d on Asus P7P55D-Evo: IOMMU not supported

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Wed, Mar 31, 2010 at 08:51:01PM +0000, Mark Hurenkamp wrote:
> > I think the BIOS is broken with respect to VT-d. Please try to update to
> >  the latest BIOS.
> Yeah, i figured as much. It's on the latest Asus Bios though (1307) which
> was released only a few weeks ago. But since Xen is dumping VT-d related
> register info, i thought i'd just post them here.
> Asus doesn't seem to pay much attention to VT-d issues with their P55
> boards, i couldn't find any indication that they are working on it.
> I tried to submit a tech support question, but it requires a serial number,
> which i seem to be unable to locate on the board.
> 

Try "dmidecode" in dom0 or on baremetal linux, it might show you the serial..

-- Pasi

> Regards,
> Mark.
> 
> > Thanks,
> > -- Dexuan
> > 
> > -----Original Message-----
> > From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
> >  [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Mark Hurenkamp
> >  Sent: 2010??3??31?? 4:58
> > To: xen-devel@xxxxxxxxxxxxxxxxxxx
> > Subject: [Xen-devel] VT-d on Asus P7P55D-Evo: IOMMU not supported
> > 
> > Hi,
> > 
> > Having updated my Xen to 4.0-rc9-pre recently, i decided to try
> > booting without the iommu=0 flag.
> > The system doesn't crash now (which is an improvement), but gracefully
> > disables VT-d due to an
> > unsupported IOMMU.
> > 
> > I've attached the output of xm dmesg, hope it is of use to someone.
> > Do let me know if there's something more i can do to help in getting
> > VT-d working on this board.
> > 
> > Regards,
> > Mark.
> > 
> >   __  __            _  _    ___   ___               ___
> >   \ \/ /___ _ __   | || |  / _ \ / _ \    _ __ ___ / _ \    _ __  _ __
> > ___
> >    \  // _ \ '_ \  | || |_| | | | | | |__| '__/ __| (_) |__| '_ \|
> > '__/ _ \
> >    /  \  __/ | | | |__   _| |_| | |_| |__| | | (__ \__, |__| |_) | |
> > 
> > |  __/
> > 
> >   /_/\_\___|_| |_|    |_|(_)___(_)___/   |_|  \___|  /_/   | .__/|_|
> > \___|
> > 
> >                                                            |_|
> > 
> > (XEN) Xen version 4.0.0-rc9-pre (root@xxxxxxxxxxx) (gcc version 4.4.1
> > (Ubuntu 4.4.1-4ubuntu9) ) Mon Mar 29 23:07:18 CEST 2010
> > (XEN) Latest ChangeSet: Sat Mar 27 16:01:35 2010 +0000
> > 21078:f3db0ae08304
> > (XEN) Command line:
> > (XEN) Video information:
> > (XEN)  VGA is text mode 80x25, font 8x16
> > (XEN)  VBE/DDC methods: V2; EDID transfer time: 1 seconds
> > (XEN) Disc information:
> > (XEN)  Found 2 MBR signatures
> > (XEN)  Found 2 EDD information structures
> > (XEN) Xen-e820 RAM map:
> > (XEN)  0000000000000000 - 000000000009fc00 (usable)
> > (XEN)  000000000009fc00 - 00000000000a0000 (reserved)
> > (XEN)  00000000000e4000 - 0000000000100000 (reserved)
> > (XEN)  0000000000100000 - 000000007f670000 (usable)
> > (XEN)  000000007f670000 - 000000007f688000 (ACPI data)
> > (XEN)  000000007f688000 - 000000007f6dc000 (ACPI NVS)
> > (XEN)  000000007f6dc000 - 000000007f700000 (reserved)
> > (XEN)  000000007f800000 - 0000000080000000 (reserved)
> > (XEN)  00000000fee00000 - 00000000fee01000 (reserved)
> > (XEN)  00000000ffe00000 - 0000000100000000 (reserved)
> > (XEN)  0000000100000000 - 0000000180000000 (usable)
> > (XEN) ACPI: RSDP 000FB470, 0024 (r2 ACPIAM)
> > (XEN) ACPI: XSDT 7F670100, 0064 (r1 022210 XSDT2250 20100222
> > MSFT       97)
> > (XEN) ACPI: FACP 7F670290, 00F4 (r3 022210 FACP2250 20100222
> > MSFT       97)
> > (XEN) ACPI: DSDT 7F6704A0, EF5B (r1  A1290 A1290001        1 INTL
> > 20060113)
> > (XEN) ACPI: FACS 7F688000, 0040
> > (XEN) ACPI: APIC 7F670390, 00CC (r1 022210 APIC2250 20100222
> > MSFT       97)
> > (XEN) ACPI: MCFG 7F670460, 003C (r1 022210 OEMMCFG  20100222
> > MSFT       97)
> > (XEN) ACPI: OEMB 7F688040, 0072 (r1 022210 OEMB2250 20100222
> > MSFT       97)
> > (XEN) ACPI: HPET 7F67F7A0, 0038 (r1 022210 OEMHPET  20100222
> > MSFT       97)
> > (XEN) ACPI: DMAR 7F6880C0, 0090 (r1    AMI  OEMDMAR        1
> > MSFT       97)
> > (XEN) ACPI: ASPT 7F67FA40, 0034 (r6 022210 PerfTune 20100222
> > MSFT       97)
> > (XEN) ACPI: OSFR 7F67FA80, 00B0 (r1 022210 OEMOSFR  20100222
> > MSFT       97)
> > (XEN) System RAM: 3880MB (3973552kB)
> > (XEN) Domain heap initialised
> > (XEN) Processor #0 7:14 APIC version 21
> > (XEN) Processor #2 7:14 APIC version 21
> > (XEN) Processor #4 7:14 APIC version 21
> > (XEN) Processor #6 7:14 APIC version 21
> > (XEN) IOAPIC[0]: apic_id 7, version 32, address 0xfec00000, GSI 0-23
> > (XEN) Enabling APIC mode:  Flat.  Using 1 I/O APICs
> > (XEN) Using scheduler: SMP Credit Scheduler (credit)
> > (XEN) Detected 3715.495 MHz processor.
> > (XEN) Initing memory sharing.
> > (XEN) VMX: Supported advanced features:
> > (XEN)  - APIC MMIO access virtualisation
> > (XEN)  - APIC TPR shadow
> > (XEN)  - Extended Page Tables (EPT)
> > (XEN)  - Virtual-Processor Identifiers (VPID)
> > (XEN)  - Virtual NMI
> > (XEN)  - MSR direct-access bitmap
> > (XEN) HVM: ASIDs enabled.
> > (XEN) HVM: VMX enabled
> > (XEN) HVM: Hardware Assisted Paging detected.
> > (XEN) [VT-D]iommu.c:1086: IOMMU: unsupported
> > (XEN) ---- print_iommu_regs ----
> > (XEN)  drhd->address = fed90000
> > (XEN)  VER = ffffffff
> > (XEN)  CAP = ffffffffffffffff
> > (XEN)  n_fault_reg = 100
> > (XEN)  fault_recording_offset = 3ff0
> > (XEN)  ECAP = ffffffffffffffff
> > (XEN)  GCMD = ffffffff
> > (XEN)  GSTS = ffffffff
> > (XEN)  RTADDR = ffffffffffffffff
> > (XEN)  CCMD = ffffffffffffffff
> > (XEN)  FSTS = ffffffff
> > (XEN)  FECTL = ffffffff
> > (XEN)  FEDATA = ffffffff
> > (XEN)  FEADDR = ffffffff
> > (XEN)  FEUADDR = ffffffff
> > (XEN) I/O virtualisation disabled
> > (XEN) Total of 4 processors activated.
> > (XEN) ENABLING IO-APIC IRQs
> > (XEN)  -> Using new ACK method
> > (XEN) TSC is reliable, synchronization unnecessary
> > (XEN) Platform timer is 14.318MHz HPET
> > (XEN) Brought up 4 CPUs
> > (XEN) *** LOADING DOMAIN 0 ***
> > (XEN)  Xen  kernel: 64-bit, lsb, compat32
> > (XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x25e7000
> > (XEN) PHYSICAL MEMORY ARRANGEMENT:
> > (XEN)  Dom0 alloc.:   0000000160000000->0000000170000000 (935455 pages
> > to be allocated)
> > (XEN) VIRTUAL MEMORY ARRANGEMENT:
> > (XEN)  Loaded kernel: ffffffff81000000->ffffffff825e7000
> > (XEN)  Init. ramdisk: ffffffff825e7000->ffffffff8dbd4000
> > (XEN)  Phys-Mach map: ffffffff8dbd4000->ffffffff8e3770f8
> > (XEN)  Start info:    ffffffff8e378000->ffffffff8e3784b4
> > (XEN)  Page tables:   ffffffff8e379000->ffffffff8e3f0000
> > (XEN)  Boot stack:    ffffffff8e3f0000->ffffffff8e3f1000
> > (XEN)  TOTAL:         ffffffff80000000->ffffffff8e800000
> > (XEN)  ENTRY ADDRESS: ffffffff81986200
> > (XEN) Dom0 has maximum 4 VCPUs
> > (XEN) Scrubbing Free RAM: .done.
> > (XEN) Xen trace buffers: disabled
> > (XEN) Std. Loglevel: Errors and warnings
> > (XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
> > (XEN) Xen is relinquishing VGA console.
> > (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch
> > input to Xen)
> > (XEN) Freed 160kB init memory.
> > 
> > 
> > 
> > 
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-devel
> > 
> 
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