> 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.
Regards,
Mark.
> Thanks,
> -- Dexuan
>
> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Mark Hurenkamp
> Sent: 2010年3月31日 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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