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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] kexec Xen from Linux
Hi all,
The first issue is that after a kexec, it seems the BDA (Bios Data
Area) is cleared or not present. At least, trying to read it returns
zero and this causes an issue in head.S
I patched head.S to just take the
Second issue is the going back to real-mode doesn't work and so I'm
using "no-real-mode" for now. I'm not sure if it's supposed to work or
not tbh.
Now I get a panic becuase of :
(XEN) ****************************************
(XEN) Panic on CPU 0:
(XEN) queue invalidate wait descriptor was not executed
(XEN) ****************************************
Not really sure what's going on ...
There is also a couple of weird messages :
(XEN) ACPI: 32/64X FACS address mismatch in FADT -
79e59f80/0000000000000000, using 32
(XEN) ACPI: wakeup_vec[79e59f8c], vec_size[20]
(XEN) [VT-D] RMRR address range 7bb24000..7bb32fff not in reserved
memory; need "iommu_inclusive_mapping=1"?
That may point so some things being screwy.
Cheers,
Sylvain Munaut,
Whatever s.a.
(XEN) Xen version 4.7.0 (test@test) (gcc (Debian 4.9.2-10) 4.9.2)
debug=n Thu Aug 25 14:12:47 UTC 2016
(XEN) Latest ChangeSet:
(XEN) Console output is synchronous.
(XEN) Bootloader: kexec 2.0.13
(XEN) Command line: loglvl=all guest_loglvl=all noreboot=true
sync_console console=com2 no-real-mode
(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 - 000000000009abff (usable)
(XEN) 000000000009ac00 - 000000000009ffff type 2989
(XEN) 00000000000e0000 - 00000000000fffff type 2989
(XEN) 0000000000100000 - 00000000796effff (usable)
(XEN) 00000000796f0000 - 00000000798befff type 2989
(XEN) 00000000798bf000 - 00000000799b7fff (usable)
(XEN) 00000000799b8000 - 0000000079e5afff type 2989
(XEN) 0000000079e5b000 - 000000007bdb0fff type 2989
(XEN) 000000007bdb1000 - 000000007bdb1fff (usable)
(XEN) 000000007bdb2000 - 000000007be37fff type 2989
(XEN) 000000007be38000 - 000000007bffffff (usable)
(XEN) 0000000080000000 - 000000008fffffff type 2989
(XEN) 00000000fed1c000 - 00000000fed1ffff type 2989
(XEN) 00000000ff000000 - 00000000ffffffff type 2989
(XEN) 0000000100000000 - 000000047fffffff (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 (16672028kB)
(XEN) No NUMA configuration found
(XEN) Faking a node at 0000000000000000-000000047ffff000
(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] RMRR address range 7bb24000..7bb32fff not in reserved
memory; need "iommu_inclusive_mapping=1"?
(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 2200.058 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: Not 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 = 47ffe8002
(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)
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