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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-users] Xen IOMMU disabled due to IVRS table... Blah blah blah
This issue has been discussed many times before, but I haven't found an answer in my specific problem. Motherboard: Asus Sabertooth 990fx R2.0 Linux 3.2.0-35 through 3.8.x (tested 5 kernels to be ridiculously thorough) Affected: Xen-hypervisor >4.1.2 Not Affected: Xen-hypervisor <4.1.2 Xen 4.1.2 and earlier works fine regardless of the BIOS version of the Mobo. After upgrading Xen hypervisor beyond 4.1.2, we get the following: (XEN) IOAPIC[0]: apic_id 9, version 33, address 0xfec00000, GSI 0-23 (XEN) IOAPIC[1]: apic_id 10, 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 3110.540 MHz processor. (XEN) Initing memory sharing. (XEN) xstate_init: using cntxt_size: 0x3c0 and states: 0x4000000000000007 (XEN) PCI: Not using MCFG for segment 0000 bus 00-ff (XEN) IVHD Error: Invalid IO-APIC 0xff (XEN) AMD-Vi: Error initialization (XEN) I/O virtualisation disabled >From what I understand, Xen used to just care less about the state of your ACPI/IVRS but that this was potentially a security concern and checks were implemented to disable IOMMU whenever it would be unsafe (potentially) to have it enabled. Now, I understand the logic here, but I disagree with the implementation. There are a fairly large number of people who are affected and we know Asus isn't going to fix the IVRS table. I recognize the importance of implementing these checks and hell, even automatically disabling IOMMU without notice (though on a consumer board, this is a bit paranoid). I understand there are kernel command line options you can pass to forcibly bypass the checks and leave IOMMU enabled in most cases (ie: iommu=no-amd-iommu-perdev-intremap) but thus far none of them seem to be enough to force IOMMU back on. I read somewhere in one of the many discussions on the subject, that there are cases where you simply aren't allowed to disable the checks (I believe this was when the IVRS table indicies don't line up or something, which seems to be my issue). As I said, I know other people have precisely this problem with a whole line of mid range Asus boards, but haven't seen a lot of discussion on the list. Anyone reading this run into the same problem? I bought this board specifically because of it's IOMMU implementation, which worked fine... at the time... Ultimately I know for a fact that the boards ACPI/IVRS can't be TOO wrong as it's been working for 6 months without an issue. I'm just sorta in a situation where it's time to upgrade my base OS and hacking Xen 4.1.2 in seems like a silly amount of work when all I really need is an option to disable the checks. xm dmesg from a working vs. borked system Working: (XEN) Xen version 4.1.2 (Ubuntu 4.1.2-2ubuntu2) (stefan.bader@xxxxxxxxxxxxx) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu2) ) Thu Mar 8 14:31:11 UTC 2012 (XEN) Bootloader: GRUB 1.99-21ubuntu3.9 (XEN) Command line: pci_msitranslate=0 xen-pciback=passthrough xen-pciback.hide=(06:00.0)(06.00.1) (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 6 MBR signatures (XEN) Found 6 EDD information structures (XEN) Xen-e820 RAM map: (XEN) 0000000000000000 - 000000000009e800 (usable) (XEN) 000000000009e800 - 00000000000a0000 (reserved) (XEN) 00000000000e0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 00000000bc348000 (usable) (XEN) 00000000bc348000 - 00000000bc78c000 (reserved) (XEN) 00000000bc78c000 - 00000000bc797000 (ACPI data) (XEN) 00000000bc797000 - 00000000bd4f8000 (ACPI NVS) (XEN) 00000000bd4f8000 - 00000000bd8d5000 (reserved) (XEN) 00000000bd8d5000 - 00000000bd8d6000 (usable) (XEN) 00000000bd8d6000 - 00000000bdad9000 (ACPI NVS) (XEN) 00000000bdad9000 - 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 - 000000043f000000 (usable) (XEN) ACPI: RSDP 000F0490, 0024 (r2 ALASKA) (XEN) ACPI: XSDT BC78E078, 0064 (r1 ALASKA A M I 1072009 AMI 10013) (XEN) ACPI: FACP BC795BA8, 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 BC78E170, 7A38 (r2 ALASKA A M I 0 INTL 20051117) (XEN) ACPI: FACS BD4F2F80, 0040 (XEN) ACPI: APIC BC795CA0, 009E (r3 ALASKA A M I 1072009 AMI 10013) (XEN) ACPI: FPDT BC795D40, 0044 (r1 ALASKA A M I 1072009 AMI 10013) (XEN) ACPI: MCFG BC795D88, 003C (r1 ALASKA A M I 1072009 MSFT 10013) (XEN) ACPI: HPET BC795DC8, 0038 (r1 ALASKA A M I 1072009 AMI 5) (XEN) ACPI: BGRT BC796260, 0038 (r0 ALASKA A M I 1072009 AMI 10013) (XEN) ACPI: IVRS BC795E58, 0100 (r1 AMD RD890S 202031 AMD 0) (XEN) ACPI: SSDT BC795F58, 0304 (r1 AMD POWERNOW 1 AMD 1) (XEN) System RAM: 16311MB (16702516kB) (XEN) Domain heap initialised (XEN) ACPI: 32/64X FACS address mismatch in FADT - bd4f2f80/0000000000000000, using 32 (XEN) Processor #16 5:1 APIC version 16 (XEN) Processor #17 5:1 APIC version 16 (XEN) Processor #18 5:1 APIC version 16 (XEN) Processor #19 5:1 APIC version 16 (XEN) Processor #20 5:1 APIC version 16 (XEN) Processor #21 5:1 APIC version 16 (XEN) Processor #22 5:1 APIC version 16 (XEN) Processor #23 5:1 APIC version 16 (XEN) IOAPIC[0]: apic_id 9, version 33, address 0xfec00000, GSI 0-23 (XEN) IOAPIC[1]: apic_id 10, 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 3110.553 MHz processor. (XEN) Initing memory sharing. (XEN) AMD-Vi: IOMMU 0 Enabled. (XEN) I/O virtualisation enabled (XEN) - Dom0 mode: Relaxed (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) - VMCB Clean Bits (XEN) - Pause-Intercept Filter (XEN) HVM: SVM enabled (XEN) HVM: Hardware Assisted Paging detected. (XEN) Brought up 8 CPUs (XEN) *** LOADING DOMAIN 0 *** (XEN) Xen kernel: 64-bit, lsb, compat32 (XEN) Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x205f000 (XEN) PHYSICAL MEMORY ARRANGEMENT: (XEN) Dom0 alloc.: 0000000420000000->0000000428000000 (4044532 pages to be allocated) (XEN) Init. ramdisk: 000000043c7dd000->000000043efffa00 (XEN) VIRTUAL MEMORY ARRANGEMENT: (XEN) Loaded kernel: ffffffff81000000->ffffffff8205f000 (XEN) Init. ramdisk: ffffffff8205f000->ffffffff84881a00 (XEN) Phys-Mach map: ffffffff84882000->ffffffff867b18b8 (XEN) Start info: ffffffff867b2000->ffffffff867b24b4 (XEN) Page tables: ffffffff867b3000->ffffffff867ec000 (XEN) Boot stack: ffffffff867ec000->ffffffff867ed000 (XEN) TOTAL: ffffffff80000000->ffffffff86c00000 (XEN) ENTRY ADDRESS: ffffffff81cfb200 (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 \047CTRL-a\047 three times to switch input to Xen) (XEN) Freed 220kB init memory. (XEN) traps.c:2432:d0 Domain attempted WRMSR 00000000c0010201 from 0x0000000000000000 to 0x000000000000abcd. (XEN) physdev.c:155: dom0: wrong map_pirq type 3 BORKED: (XEN) Xen version 4.2.1 (Ubuntu 4.2.1-0ubuntu3.1) (stefan.bader@xxxxxxxxxxxxx) (gcc (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3) Mon Apr 29 19:35:31 UTC 2013 (XEN) Bootloader: GRUB 2.00-13ubuntu3 (XEN) Command line: iommu=no-amd-iommu-perdev-intremap x2apic=off xen-pciback.hide=(06:00.0)(06.00.1) (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 7 MBR signatures (XEN) Found 6 EDD information structures (XEN) Xen-e820 RAM map: (XEN) 0000000000000000 - 000000000009e800 (usable) (XEN) 000000000009e800 - 00000000000a0000 (reserved) (XEN) 00000000000e0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 00000000ba7ac000 (usable) (XEN) 00000000ba7ac000 - 00000000babe0000 (reserved) (XEN) 00000000babe0000 - 00000000babf0000 (ACPI data) (XEN) 00000000babf0000 - 00000000bb958000 (ACPI NVS) (XEN) 00000000bb958000 - 00000000bca35000 (reserved) (XEN) 00000000bca35000 - 00000000bca36000 (usable) (XEN) 00000000bca36000 - 00000000bcc3c000 (ACPI NVS) (XEN) 00000000bcc3c000 - 00000000bd083000 (usable) (XEN) 00000000bd083000 - 00000000bd7f4000 (reserved) (XEN) 00000000bd7f4000 - 00000000bd800000 (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 - 000000043f000000 (usable) (XEN) ACPI: RSDP 000F0490, 0024 (r2 ALASKA) (XEN) ACPI: XSDT BABE7078, 0064 (r1 ALASKA A M I 1072009 AMI 10013) (XEN) ACPI: FACP BABEE118, 010C (r5 ALASKA A M I 1072009 AMI 10013) (XEN) ACPI Warning (tbfadt-0232): FADT (revision 5) is longer than ACPI 2.0 version, truncating length 0x10C to 0xF4 [20070126] (XEN) ACPI Warning (tbfadt-0444): Optional field "Pm2ControlBlock" has zero address or length: 0000000000000000/1 [20070126] (XEN) ACPI: DSDT BABE7170, 6FA8 (r2 ALASKA A M I 0 INTL 20051117) (XEN) ACPI: FACS BB952F80, 0040 (XEN) ACPI: APIC BABEE228, 009E (r3 ALASKA A M I 1072009 AMI 10013) (XEN) ACPI: FPDT BABEE2C8, 0044 (r1 ALASKA A M I 1072009 AMI 10013) (XEN) ACPI: MCFG BABEE310, 003C (r1 ALASKA A M I 1072009 MSFT 10013) (XEN) ACPI: HPET BABEE350, 0038 (r1 ALASKA A M I 1072009 AMI 5) (XEN) ACPI: BGRT BABEFBF8, 0038 (r0 ALASKA A M I 1072009 AMI 10013) (XEN) ACPI: IVRS BABEE3E0, 0100 (r1 AMD RD890S 202031 AMD 0) (XEN) ACPI: SSDT BABEE4E0, 1714 (r1 AMD POWERNOW 1 AMD 1) (XEN) System RAM: 16283MB (16674420kB) (XEN) Domain heap initialised (XEN) ACPI: 32/64X FACS address mismatch in FADT - bb952f80/0000000000000000, using 32 (XEN) Processor #16 5:1 APIC version 16 (XEN) Processor #17 5:1 APIC version 16 (XEN) Processor #18 5:1 APIC version 16 (XEN) Processor #19 5:1 APIC version 16 (XEN) Processor #20 5:1 APIC version 16 (XEN) Processor #21 5:1 APIC version 16 (XEN) Processor #22 5:1 APIC version 16 (XEN) Processor #23 5:1 APIC version 16 (XEN) IOAPIC[0]: apic_id 9, version 33, address 0xfec00000, GSI 0-23 (XEN) IOAPIC[1]: apic_id 10, 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 3110.540 MHz processor. (XEN) Initing memory sharing. (XEN) xstate_init: using cntxt_size: 0x3c0 and states: 0x4000000000000007 (XEN) PCI: Not using MCFG for segment 0000 bus 00-ff (XEN) IVHD Error: Invalid IO-APIC 0xff (XEN) AMD-Vi: Error initialization (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) - VMCB Clean Bits (XEN) - DecodeAssists (XEN) - Pause-Intercept Filter (XEN) - TSC Rate MSR (XEN) HVM: SVM enabled (XEN) HVM: Hardware Assisted Paging (HAP) detected (XEN) HVM: HAP page sizes: 4kB, 2MB, 1GB (XEN) Brought up 8 CPUs (XEN) mtrr: your CPUs had inconsistent variable MTRR settings (XEN) *** LOADING DOMAIN 0 *** (XEN) Xen kernel: 64-bit, lsb, compat32 (XEN) Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x2346000 (XEN) PHYSICAL MEMORY ARRANGEMENT: (XEN) Dom0 alloc.: 0000000420000000->0000000428000000 (4035583 pages to be allocated) (XEN) Init. ramdisk: 0000000439dc6000->000000043efff800 (XEN) VIRTUAL MEMORY ARRANGEMENT: (XEN) Loaded kernel: ffffffff81000000->ffffffff82346000 (XEN) Init. ramdisk: ffffffff82346000->ffffffff8757f800 (XEN) Phys-Mach map: ffffffff87580000->ffffffff894b31c8 (XEN) Start info: ffffffff894b4000->ffffffff894b44b4 (XEN) Page tables: ffffffff894b5000->ffffffff89504000 (XEN) Boot stack: ffffffff89504000->ffffffff89505000 (XEN) TOTAL: ffffffff80000000->ffffffff89800000 (XEN) ENTRY ADDRESS: ffffffff81d06210 (XEN) Dom0 has maximum 8 VCPUs (XEN) Scrubbing Free RAM: .done. (XEN) Initial low memory virq threshold set at 0x4000 pages. (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 244kB init memory. _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxx http://lists.xen.org/xen-users
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