Xen devel - Apr 2010 - trying to get vt-d working with xen 4.0.0 stable + 2.6.32.10 pvops kernel with .config file from the

here is my xm dmesg i was wondering if anyone knew about these DMAR  
listings in the vt-d section of the dmesg (with iommu=verbose at boot)

__ __ _ _ ___ ___
\ \/ /___ _ __ | || | / _ \ / _ \
\ // _ \ ''_ \ | || |_| | | | | | |
/ \ __/ | | | |__ _| |_| | |_| |
/_/\_\___|_| |_| |_|(_)___(_)___/

(XEN) Xen version 4.0.0 (root@) (gcc version 4.4.1 (Ubuntu 4.4.1-4ubuntu9)  
) Sat Apr 24 15:16:24 EDT 2010
(XEN) Latest ChangeSet: unavailable
(XEN) Command line: dom0_mem=1024M iommu=verbose
(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 3 MBR signatures
(XEN) Found 3 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN) 0000000000000000 - 000000000009e000 (usable)
(XEN) 000000000009e000 - 00000000000a0000 (reserved)
(XEN) 00000000000e0000 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 000000007ecce000 (usable)
(XEN) 000000007ecce000 - 000000007ed48000 (ACPI NVS)
(XEN) 000000007ed48000 - 000000007fdb2000 (usable)
(XEN) 000000007fdb2000 - 000000007fdb4000 (reserved)
(XEN) 000000007fdb4000 - 000000007fe6d000 (usable)
(XEN) 000000007fe6d000 - 000000007fe78000 (ACPI NVS)
(XEN) 000000007fe78000 - 000000007fe7d000 (ACPI data)
(XEN) 000000007fe7d000 - 000000007fee5000 (ACPI NVS)
(XEN) 000000007fee5000 - 000000007fef2000 (ACPI data)
(XEN) 000000007fef2000 - 000000007fef3000 (usable)
(XEN) 000000007fef3000 - 000000007feff000 (ACPI data)
(XEN) 000000007feff000 - 000000007ff00000 (usable)
(XEN) 000000007ff00000 - 0000000080000000 (reserved)
(XEN) 00000000f0000000 - 00000000f8000000 (reserved)
(XEN) 00000000ffe00000 - 0000000100000000 (reserved)
(XEN) System RAM: 1878MB (1924000kB)
(XEN) ACPI: RSDP 000FE020, 0014 (r0 INTEL )
(XEN) ACPI: RSDT 7FEFD038, 0084 (r1 INTEL D5400XS 549 1000013)
(XEN) ACPI: FACP 7FEFC000, 0074 (r1 INTEL D5400XS 549 MSFT 1000013)
(XEN) ACPI: DSDT 7FEF8000, 3C26 (r1 INTEL D5400XS 549 MSFT 1000013)
(XEN) ACPI: FACS 7FE7D000, 0040
(XEN) ACPI: APIC 7FEF7000, 00D4 (r1 INTEL D5400XS 549 MSFT 1000013)
(XEN) ACPI: WDDT 7FEF6000, 0040 (r1 INTEL D5400XS 549 MSFT 1000013)
(XEN) ACPI: MCFG 7FEF5000, 003C (r1 INTEL D5400XS 549 MSFT 1000013)
(XEN) ACPI: ASF! 7FEF4000, 00A7 (r32 INTEL D5400XS 549 MSFT 1000013)
(XEN) ACPI: HPET 7FEF3000, 0038 (r1 INTEL D5400XS 549 MSFT 1000013)
(XEN) ACPI: DMAR 7FEF1000, 00C8 (r1 INTEL D5400XS 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FEF0000, 03CC (r1 INTEL CpuPm 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FEEF000, 0175 (r1 INTEL Cpu0Ist 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FEEE000, 0175 (r1 INTEL Cpu1Ist 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FEED000, 0175 (r1 INTEL Cpu2Ist 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FEEC000, 0175 (r1 INTEL Cpu3Ist 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FEEB000, 0175 (r1 INTEL Cpu4Ist 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FEEA000, 0175 (r1 INTEL Cpu5Ist 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FEE9000, 0175 (r1 INTEL Cpu6Ist 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FEE8000, 0175 (r1 INTEL Cpu7Ist 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FEE7000, 00DD (r1 INTEL Cpu0Cst 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FEE6000, 00DD (r1 INTEL Cpu1Cst 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FEE5000, 00DD (r1 INTEL Cpu2Cst 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FE7C000, 00DD (r1 INTEL Cpu3Cst 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FE7B000, 00DD (r1 INTEL Cpu4Cst 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FE7A000, 00DD (r1 INTEL Cpu5Cst 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FE79000, 00DD (r1 INTEL Cpu6Cst 549 MSFT 1000013)
(XEN) ACPI: SSDT 7FE78000, 00DD (r1 INTEL Cpu7Cst 549 MSFT 1000013)
(XEN) Xen heap: 8MB (8856kB)
(XEN) Domain heap initialised
(XEN) Processor #0 7:7 APIC version 20
(XEN) Processor #4 7:7 APIC version 20
(XEN) Processor #1 7:7 APIC version 20
(XEN) Processor #5 7:7 APIC version 20
(XEN) Processor #2 7:7 APIC version 20
(XEN) Processor #6 7:7 APIC version 20
(XEN) Processor #3 7:7 APIC version 20
(XEN) Processor #7 7:7 APIC version 20
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) IOAPIC[1]: apic_id 9, version 255, address 0xfec88000, GSI 24-279
(XEN) IOAPIC[2]: apic_id 10, version 255, address 0xfec90000, GSI 48-303
(XEN) Enabling APIC mode: Flat. Using 3 I/O APICs
(XEN) [VT-D]dmar.c:679: Host address width 40
(XEN) [VT-D]dmar.c:694: found ACPI_DMAR_DRHD:
(XEN) [VT-D]dmar.c:398: dmaru->address = fe710000
(XEN) [VT-D]dmar.c:320: bridge: 0:1.0 start = 0 sec = 1 sub = 4
(XEN) [VT-D]dmar.c:694: found ACPI_DMAR_DRHD:
(XEN) [VT-D]dmar.c:398: dmaru->address = fe714000
(XEN) [VT-D]dmar.c:320: bridge: 0:5.0 start = 0 sec = 5 sub = 8
(XEN) [VT-D]dmar.c:694: found ACPI_DMAR_DRHD:
(XEN) [VT-D]dmar.c:398: dmaru->address = fe718000
(XEN) [VT-D]dmar.c:411: flags: INCLUDE_ALL
(XEN) [VT-D]dmar.c:694: found ACPI_DMAR_DRHD:
(XEN) [VT-D]dmar.c:398: dmaru->address = fe71a000
(XEN) [VT-D]dmar.c:334: endpoint: 0:f.0
(XEN) [VT-D]dmar.c:699: found ACPI_DMAR_RMRR:
(XEN) [VT-D]dmar.c:334: endpoint: 0:1d.0
(XEN) [VT-D]dmar.c:334: endpoint: 0:1d.1
(XEN) [VT-D]dmar.c:334: endpoint: 0:1d.2
(XEN) [VT-D]dmar.c:334: endpoint: 0:1d.3
(XEN) [VT-D]dmar.c:334: endpoint: 0:1d.7
(XEN) [VT-D]dmar.c:571: RMRR region: base_addr e0000 end_address effff
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2327.572 MHz processor.
(XEN) Initing memory sharing.
(XEN) VMX: Supported advanced features:
(XEN) - APIC MMIO access virtualisation
(XEN) - APIC TPR shadow
(XEN) - Virtual NMI
(XEN) - MSR direct-access bitmap
(XEN) HVM: ASIDs disabled.
(XEN) HVM: VMX enabled
(XEN) [VT-D]iommu.c:1078: drhd->address = fe71a000 iommu->reg = fff17000
(XEN) [VT-D]iommu.c:1080: cap = ffffffffffffffff ecap = ffffffffffffffff
(XEN) [VT-D]iommu.c:1086: IOMMU: unsupported
(XEN) ---- print_iommu_regs ----
(XEN) drhd->address = fe71a000
(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 8 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using new ACK method
(XEN) checking TSC synchronization across 8 CPUs: passed.
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 16 KiB.
(XEN) Brought up 8 CPUs
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen kernel: 32-bit, PAE, lsb
(XEN) Dom0 kernel: 32-bit, PAE, lsb, paddr 0x400000 -> 0xac5000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 0000000020000000->0000000030000000 (196608 pages to be  
allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: c0400000->c0ac5000
(XEN) Init. ramdisk: c0ac5000->c9d52e00
(XEN) Phys-Mach map: c9d53000->c9e53000
(XEN) Start info: c9e53000->c9e5347c
(XEN) Page tables: c9e54000->c9ea9000
(XEN) Boot stack: c9ea9000->c9eaa000
(XEN) TOTAL: c0000000->ca000000
(XEN) ENTRY ADDRESS: c088e000
(XEN) Dom0 has maximum 8 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 136kB init memory.
root@Phoenix:~#


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

On Sat, Apr 24, 2010 at 08:08:56PM +0000, c4pt4inkrunch@gmail.com
wrote:
> here is my xm dmesg i was wondering if anyone knew about these DMAR  
.. snip..
> (XEN) [VT-D]iommu.c:1078: drhd->address = fe71a000 iommu->reg =
fff17000
> (XEN) [VT-D]iommu.c:1080: cap = ffffffffffffffff ecap = ffffffffffffffff
> (XEN) [VT-D]iommu.c:1086: IOMMU: unsupported
Line 1086.

1083     if ( cap_fault_reg_offset(iommu->cap) +
1084          cap_num_fault_regs(iommu->cap) * PRIMARY_FAULT_REG_LEN
>PAGE_SIZE ||
1085          ecap_iotlb_offset(iommu->ecap) >= PAGE_SIZE )
1086     {


The iommu->cap and iommu->ecap are used. And as you can see below
the values are all 0xfffffffffffffffff which are pretty bogus.
> (XEN) ---- print_iommu_regs ----
> (XEN) drhd->address = fe71a000
> (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 8 processors activated.
Looks to me that your hardware isn''t working right.

So to fix this, please follow this link:

"Intel developers also want to know about broken IOMMU/VT-d BIOS
implementations, see this email:
+http://lists.xensource.com/archives/html/xen-devel/2010-01/msg00841.html,
so let them know all the details about your hardware and
+software if you have broken BIOS. "


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel