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[Qemu-devel] [Bug 1790975] Re: Default arm virt machine broken

From: Eric Auger
Subject: [Qemu-devel] [Bug 1790975] Re: Default arm virt machine broken
Date: Fri, 07 Sep 2018 07:45:32 -0000

Hi Jonathan,

I sent an email yesterday on the qemu ML.

Please can you try using
qemu-system-arm -machine virt,highmem=off -m 1024M -kernel zImage
-serial stdio

Does your guest support LPAE? This may be the cause.



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  Default arm virt machine broken

Status in QEMU:

Bug description:
  This occurs on qemu_v3.0.0 but not on qemu_v2.12.2 (built from
  qemu_v3.0.0 tag on github)

  Symptom: You'll see something like this in the kernel output:

  [    1.285210] OF: PCI: host bridge /address@hidden ranges:
  [    1.286246] OF: PCI:    IO 0x3eff0000..0x3effffff -> 0x00000000
  [    1.287061] OF: PCI:   MEM 0x10000000..0x3efeffff -> 0x10000000
  [    1.287820] OF: PCI:   MEM 0x8000000000..0xffffffffff -> 0x8000000000
  [    1.289312] pci-host-generic 4010000000.pcie: can't claim ECAM area [mem 
0x10000000-0x1fffffff]: address conflict with /address@hidden [mem 
  [    1.290984] pci-host-generic: probe of 4010000000.pcie failed with error 

  Qemu Command Line: qemu-system-arm -machine virt -m 1024M -kernel
  zImage -serial stdio

  I can post my zImage if anyone has problems reproducing with their own

  Note that this problem breaks pci making the machine unusable.

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