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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] IOMMU initialization failure when using linux-as-bootloader
Hello, I'm trying to use "linux as a bootloader", i.e. kexec into Xen 4.7 and I've been struggling for the past week. I've been able to debug and fix some issues on my own ( ELF header issue, invalid BDA entries, some kexec-tools bugs, ...) but I've been stuck on this one with no idea how to even debug it. Basically what I'm getting now is : (XEN) DMAR_IQA_REG = 47ad78002 (XEN) DMAR_IQH_REG = 440 (XEN) DMAR_IQT_REG = 20 (XEN) (XEN) **************************************** (XEN) Panic on CPU 0: (XEN) queue invalidate wait descriptor was not executed (XEN) **************************************** If I try with iommu=off, then xen actually loads the dom0 kernel but it fails with various IO errors and not managing to access the drives, USB and so on. So obviously something is not quite initialized right, but I have no idea what. I should also not that kexec'ing into the dom0 kernel directly, without xen, works just fine. Does anyone have any clue what could be going on, or what I could do next ? Below is the full xen serial console output. And you can also find a diff of a native (from grub) boot vs a kexec one : http://pastebin.com/M3X2ZvPx If you need more info, please ask, I can test or post more details if needed. Cheers, Sylvain Munaut (XEN) Xen version 4.7.0 (whatever@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc (Debian 4.9.2-10) 4.9.2) debug=n Fri Aug 26 09:07:38 UTC 2016 (XEN) Latest ChangeSet: (XEN) Bootloader: kexec 2.0.13 (XEN) Command line: loglvl=all guest_loglvl=all noreboot=true console=com2 no-real-mode edd=off iommu_dev_iotlb_timeout=5000 iommu_inclusive_mapping=1 iommu=verbose,debug (XEN) Video information: (XEN) VGA is text mode 80x25, font 8x16 (XEN) Disc information: (XEN) Found 0 MBR signatures (XEN) Found 0 EDD information structures (XEN) Multiboot-e820 RAM map: (XEN) 0000000000000100 - 000000000009ac00 (usable) (XEN) 000000000009ac00 - 00000000000a0000 (reserved) (XEN) 00000000000e0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 00000000796f0000 (usable) (XEN) 00000000796f0000 - 00000000798bf000 (reserved) (XEN) 00000000798bf000 - 00000000799b8000 (usable) (XEN) 00000000799b8000 - 000000007bdb1000 (reserved) (XEN) 000000007bdb1000 - 000000007bdb2000 (usable) (XEN) 000000007bdb2000 - 000000007be38000 (reserved) (XEN) 000000007be38000 - 000000007c000000 (usable) (XEN) 0000000080000000 - 0000000090000000 (reserved) (XEN) 00000000fed1c000 - 00000000fed20000 (reserved) (XEN) 00000000ff000000 - 0000000100000000 (reserved) (XEN) 0000000100000000 - 0000000480000000 (usable) (XEN) ACPI: RSDP 000F0580, 0024 (r2 SUPERM) (XEN) ACPI: XSDT 79A000A0, 00BC (r1 SUPERM SMCI--MB 1072009 AMI 10013) (XEN) ACPI: FACP 79A17EC0, 010C (r5 SUPERM SMCI--MB 1072009 AMI 10013) (XEN) ACPI: DSDT 79A001F0, 17CCE (r2 SUPERM SMCI--MB 1072009 INTL 20091013) (XEN) ACPI: FACS 79E59F80, 0040 (XEN) ACPI: APIC 79A17FD0, 00C8 (r3 SUPERM SMCI--MB 1072009 AMI 10013) (XEN) ACPI: FPDT 79A18098, 0044 (r1 SUPERM SMCI--MB 1072009 AMI 10013) (XEN) ACPI: FIDT 79A180E0, 009C (r1 SUPERM SMCI--MB 1072009 AMI 10013) (XEN) ACPI: SPMI 79A18180, 0040 (r5 SUPERM SMCI--MB 0 AMI. 0) (XEN) ACPI: MCFG 79A181C0, 003C (r1 SUPERM SMCI--MB 1072009 MSFT 97) (XEN) ACPI: UEFI 79A18200, 0042 (r1 0 0) (XEN) ACPI: DBG2 79A18248, 0072 (r0 SUPERM SMCI--MB 0 INTL 20091013) (XEN) ACPI: HPET 79A182C0, 0038 (r1 SUPERM SMCI--MB 1 INTL 20091013) (XEN) ACPI: WDDT 79A182F8, 0040 (r1 SUPERM SMCI--MB 0 INTL 20091013) (XEN) ACPI: SSDT 79A18338, ED8B (r1 AMI PmMgt 1 INTL 20120913) (XEN) ACPI: SSDT 79A270C8, 2285 (r2 SUPERM SpsNm 2 INTL 20120913) (XEN) ACPI: SSDT 79A29350, 0064 (r2 SUPERM SpsNvs 2 INTL 20120913) (XEN) ACPI: PRAD 79A293B8, 0102 (r2 SUPERM SMCI--MB 2 INTL 20120913) (XEN) ACPI: DMAR 79A294C0, 00D4 (r1 SUPERM SMCI--MB 1 INTL 20091013) (XEN) ACPI: HEST 79A29598, 00A8 (r1 SUPERM SMCI--MB 1 INTL 1) (XEN) ACPI: BERT 79A29640, 0030 (r1 SUPERM SMCI--MB 1 INTL 1) (XEN) ACPI: ERST 79A29670, 0230 (r1 SUPERM SMCI--MB 1 INTL 1) (XEN) ACPI: EINJ 79A298A0, 0130 (r1 SUPERM SMCI--MB 1 INTL 1) (XEN) System RAM: 16281MB (16672048kB) (XEN) No NUMA configuration found (XEN) Faking a node at 0000000000000000-0000000480000000 (XEN) Domain heap initialised (XEN) found SMP MP-table at 000fd9b0 (XEN) DMI 2.7 present. (XEN) Using APIC driver default (XEN) ACPI: PM-Timer IO Port: 0x408 (XEN) ACPI: v5 SLEEP INFO: control[0:0], status[0:0] (XEN) ACPI: SLEEP INFO: pm1x_cnt[1:404,1:0], pm1x_evt[1:400,1:0] (XEN) ACPI: 32/64X FACS address mismatch in FADT - 79e59f80/0000000000000000, using 32 (XEN) ACPI: wakeup_vec[79e59f8c], vec_size[20] (XEN) ACPI: Local APIC address 0xfee00000 (XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled) (XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x04] enabled) (XEN) ACPI: LAPIC (acpi_id[0x06] lapic_id[0x06] enabled) (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) (XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] enabled) (XEN) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x05] enabled) (XEN) ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] enabled) (XEN) ACPI: LAPIC_NMI (acpi_id[0x00] high level lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x02] high level lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x04] high level lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x06] high level lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x01] high level lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x03] high level lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x05] high level lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x07] high level lint[0x1]) (XEN) ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0]) (XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23 (XEN) ACPI: IOAPIC (id[0x09] address[0xfec01000] gsi_base[24]) (XEN) IOAPIC[1]: apic_id 9, version 32, address 0xfec01000, GSI 24-47 (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) (XEN) ACPI: IRQ0 used by override. (XEN) ACPI: IRQ2 used by override. (XEN) ACPI: IRQ9 used by override. (XEN) Enabling APIC mode: Flat. Using 2 I/O APICs (XEN) ACPI: HPET id: 0x8086a701 base: 0xfed00000 (XEN) [VT-D]Host address width 46 (XEN) [VT-D]found ACPI_DMAR_DRHD: (XEN) [VT-D] dmaru->address = fbffc000 (XEN) [VT-D]drhd->address = fbffc000 iommu->reg = ffff82c000201000 (XEN) [VT-D]cap = 8d2078c106f0466 ecap = f020de (XEN) [VT-D] IOAPIC: 0000:f0:1f.7 (XEN) [VT-D] IOAPIC: 0000:00:05.4 (XEN) [VT-D] MSI HPET: 0000:f0:0f.0 (XEN) [VT-D] flags: INCLUDE_ALL (XEN) [VT-D]found ACPI_DMAR_RMRR: (XEN) [VT-D] endpoint: 0000:00:14.0 (XEN) [VT-D] endpoint: 0000:00:1a.0 (XEN) [VT-D] endpoint: 0000:00:1d.0 (XEN) [VT-D] RMRR region: base_addr 7bb24000 end_address 7bb32fff (XEN) [VT-D]found ACPI_DMAR_ATSR: (XEN) [VT-D] atsru->all_ports: 0 (XEN) [VT-D] bridge: 0000:00:01.0 start=0 sec=1 sub=1 (XEN) [VT-D] bridge: 0000:00:01.1 start=0 sec=2 sub=2 (XEN) [VT-D] bridge: 0000:00:02.0 start=0 sec=3 sub=3 (XEN) [VT-D] bridge: 0000:00:02.2 start=0 sec=4 sub=5 (XEN) [VT-D] bridge: 0000:00:03.0 start=0 sec=6 sub=6 (XEN) [VT-D] bridge: 0000:00:03.2 start=0 sec=7 sub=7 (XEN) [VT-D]found ACPI_DMAR_RHSA: (XEN) [VT-D] rhsau->address: fbffc000 rhsau->proximity_domain: 0 (XEN) Xen ERST support is initialized. (XEN) HEST: Table parsing has been initialized (XEN) Using ACPI (MADT) for SMP configuration information (XEN) SMP: Allowing 8 CPUs (0 hotplug CPUs) (XEN) IRQ limits: 48 GSI, 1504 MSI/MSI-X (XEN) Not enabling x2APIC (upon firmware request) (XEN) xstate_init: using cntxt_size: 0x340 and states: 0x7 (XEN) CPU0 CMCI LVT vector (0xf9) already installed (XEN) Thermal LVT vector (0xfa) already installed (XEN) Intel machine check reporting enabled (XEN) Using scheduler: SMP Credit Scheduler (credit) (XEN) Detected 2200.039 MHz processor. (XEN) Initing memory sharing. (XEN) alt table ffff82d0802b3890 -> ffff82d0802b4e08 (XEN) PCI: MCFG configuration 0: base 80000000 segment 0000 buses 00 - ff (XEN) PCI: MCFG area at 80000000 reserved in E820 (XEN) PCI: Using MCFG for segment 0000 bus 00-ff (XEN) Intel VT-d iommu 0 supported page sizes: 4kB, 2MB, 1GB. (XEN) Intel VT-d Snoop Control enabled. (XEN) Intel VT-d Dom0 DMA Passthrough not enabled. (XEN) Intel VT-d Queued Invalidation enabled. (XEN) Intel VT-d Interrupt Remapping enabled. (XEN) Intel VT-d Posted Interrupt not enabled. (XEN) Intel VT-d Shared EPT tables enabled. (XEN) DMAR_IQA_REG = 47ad78002 (XEN) DMAR_IQH_REG = 440 (XEN) DMAR_IQT_REG = 20 (XEN) (XEN) **************************************** (XEN) Panic on CPU 0: (XEN) queue invalidate wait descriptor was not executed (XEN) **************************************** (XEN) (XEN) Manual reset required ('noreboot' specified) _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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