Hi.
I got a asus SABERTOOTH 990FX, reading about vt-d, I read the MoBo
that support IOMMU and there was chip 990FX, them I pick this MoBo,
the BIOS that came with the board was 0402 05/11.
I follow the xen wiki, I'm running Xen 4.1.1 from Gitco on Centos 5.7
x64, by default the MoBo have the IOMMU disable, I enable the feature
IOMMU = 64MB, save the bios settings, restart, turn off the machine,
unplug the power cable for a couple of seconds, connect the cable,
start the machine and...
1; kernel /xen.gz-4.1.1 dom0_max_vcpus=1 dom0_vcpus_pin dom0_mem=1024MB iommu=1
(XEN) AMD-Vi: IOMMU not found!
(XEN) I/O virtualisation disabled
2; The wiki say that by default xen 4+ have iommu enable, them I
remove the iommu=1 option in the kernel line, save, restart and:
(XEN) AMD-Vi: IOMMU not found!
(XEN) I/O virtualisation disabled
I still have other BIOS is a beta, I will give a try and see what
happend, is someone have tip about please let me know I will
appreciated.
Last thing, before purchase this MoBo I ask by chat to the technical
support of asus and the guy say that every MoBo from 2010+ have this
feature, 3 years back don't, them he point me a list of MoBo and was
this one I got, my near store have it and pay for it.
This is the dmesg output just for the record:
\ \/ /___ _ __ | || | / | / |
\ // _ \ \047_ \ | || |_ | | | |
/ \ __/ | | | |__ _|| |_| |
/_/\_\___|_| |_| |_|(_)_(_)_|
(XEN) Xen version 4.1.1 (root@xxxxxxxxx) (gcc version 4.1.2 20080704
(Red Hat 4.1.2-50)) Sun Sep 4 23:28:19 CEST 2011
(XEN) Latest ChangeSet: unavailable
(XEN) Bootloader: GNU GRUB 0.97
(XEN) Command line: dom0_max_vcpus=1 dom0_vcpus_pin dom0_mem=1024MB
(XEN) Video information:
(XEN) VGA is text mode 80x25, font 8x16
(XEN) VBE/DDC methods: none; EDID transfer time: 0 seconds
(XEN) EDID info not retrieved because no DDC retrieval method detected
(XEN) Disc information:
(XEN) Found 2 MBR signatures
(XEN) Found 2 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN) 0000000000000000 - 000000000009d800 (usable)
(XEN) 000000000009d800 - 00000000000a0000 (reserved)
(XEN) 00000000000e0000 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 00000000bd83e000 (usable)
(XEN) 00000000bd83e000 - 00000000bd88b000 (ACPI NVS)
(XEN) 00000000bd88b000 - 00000000bd894000 (ACPI data)
(XEN) 00000000bd894000 - 00000000bdae0000 (reserved)
(XEN) 00000000bdae0000 - 00000000bdaf1000 (ACPI NVS)
(XEN) 00000000bdaf1000 - 00000000bdb04000 (reserved)
(XEN) 00000000bdb04000 - 00000000bdb06000 (ACPI NVS)
(XEN) 00000000bdb06000 - 00000000bdb0f000 (reserved)
(XEN) 00000000bdb0f000 - 00000000bdb15000 (ACPI NVS)
(XEN) 00000000bdb15000 - 00000000bdb77000 (reserved)
(XEN) 00000000bdb77000 - 00000000bdd7a000 (ACPI NVS)
(XEN) 00000000bdd7a000 - 00000000bdf00000 (usable)
(XEN) 00000000f8000000 - 00000000fc000000 (reserved)
(XEN) 00000000fec00000 - 00000000fec01000 (reserved)
(XEN) 00000000fec10000 - 00000000fec11000 (reserved)
(XEN) 00000000fec20000 - 00000000fec21000 (reserved)
(XEN) 00000000fed00000 - 00000000fed01000 (reserved)
(XEN) 00000000fed61000 - 00000000fed71000 (reserved)
(XEN) 00000000fed80000 - 00000000fed90000 (reserved)
(XEN) 00000000fef00000 - 0000000100000000 (reserved)
(XEN) 0000000100001000 - 0000000240000000 (usable)
(XEN) ACPI: RSDP 000F0450, 0024 (r2 ALASKA)
(XEN) ACPI: XSDT BD88B060, 0044 (r1 ALASKA A M I 1072009 AMI 10013)
(XEN) ACPI: FACP BD893C28, 00F4 (r4 ALASKA A M I 1072009 AMI 10013)
(XEN) ACPI Warning (tbfadt-0444): Optional field "Pm2ControlBlock" has
zero address or length: 0000000000000000/1 [20070126]
(XEN) ACPI: DSDT BD88B138, 8AED (r2 ALASKA A M I 0 INTL 20051117)
(XEN) ACPI: FACS BDB0FF80, 0040
(XEN) ACPI: APIC BD893D20, 009E (r3 ALASKA A M I 1072009 AMI 10013)
(XEN) ACPI: MCFG BD893DC0, 003C (r1 ALASKA A M I 1072009 MSFT 10013)
(XEN) ACPI: HPET BD893E00, 0038 (r1 ALASKA A M I 1072009 AMI 4)
(XEN) System RAM: 8153MB (8349056kB)
(XEN) Domain heap initialised
(XEN) ACPI: 32/64X FACS address mismatch in FADT -
bdb0ff80/0000000000000000, using 32
(XEN) Processor #0 0:5 APIC version 16
(XEN) Processor #1 0:5 APIC version 16
(XEN) Processor #2 0:5 APIC version 16
(XEN) Processor #3 0:5 APIC version 16
(XEN) IOAPIC[0]: apic_id 5, version 33, address 0xfec00000, GSI 0-23
(XEN) IOAPIC[1]: apic_id 6, version 33, address 0xfec20000, GSI 24-55
(XEN) Enabling APIC mode: Flat. Using 2 I/O APICs
(XEN) Table is not found!
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 3010.193 MHz processor.
(XEN) Initing memory sharing.
(XEN) AMD-Vi: IOMMU not found!
(XEN) I/O virtualisation disabled
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using new ACK method
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 16 KiB.
(XEN) HVM: ASIDs enabled.
(XEN) SVM: Supported advanced features:
(XEN) - Nested Page Tables (NPT)
(XEN) - Last Branch Record (LBR) Virtualisation
(XEN) - Next-RIP Saved on #VMEXIT
(XEN) HVM: SVM enabled
(XEN) HVM: Hardware Assisted Paging detected.
(XEN) Brought up 4 CPUs
(XEN) Xenoprofile: Failed to setup IBS LVT offset, IBSCTL = 0xffffffff
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen kernel: 64-bit, lsb, compat32
(XEN) Dom0 kernel: 64-bit, lsb, paddr 0xffffffff80200000 -> 0xffffffff808e302c
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 0000000238000000->0000000239000000 (255908 pages
to be allocated)
(XEN) Init. ramdisk: 000000023f7a4000->000000023ffffa00
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: ffffffff80200000->ffffffff808e302c
(XEN) Init. ramdisk: ffffffff808e4000->ffffffff8113fa00
(XEN) Phys-Mach map: ffffffff81140000->ffffffff81340000
(XEN) Start info: ffffffff81340000->ffffffff813404b4
(XEN) Page tables: ffffffff81341000->ffffffff8134e000
(XEN) Boot stack: ffffffff8134e000->ffffffff8134f000
(XEN) TOTAL: ffffffff80000000->ffffffff81400000
(XEN) ENTRY ADDRESS: ffffffff80200000
(XEN) Dom0 has maximum 1 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 \047CTRL-a\047 three times to
switch input to Xen)
(XEN) Freed 216kB init memory.
(END)
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