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[Bug 1874504] Re: VFIO passthrough spits out thousands of messages

From: Launchpad Bug Tracker
Subject: [Bug 1874504] Re: VFIO passthrough spits out thousands of messages
Date: Tue, 06 Jul 2021 04:17:36 -0000

[Expired for QEMU because there has been no activity for 60 days.]

** Changed in: qemu
       Status: Incomplete => Expired

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  VFIO passthrough spits out thousands of messages

Status in QEMU:

Bug description:
  started qemu as:
  sudo qemu-system-sparc64 -device vfio-pci,host=0b:05.0,x-no-mmap=on,bus=pciB

  messages received thousands of times:

  qemu-system-sparc64: -device vfio-pci,host=0b:05.0,x-no-mmap=on,bus=pciB: 
iommu has granularity incompatible with target AS
  qemu-system-sparc64: -device vfio-pci,host=0b:05.0,x-no-mmap=on,bus=pciB: 
iommu map to non memory area 4079c000

  qemu version (think telling a lie as sure its 5.0)
  QEMU emulator version 4.2.92
  Copyright (c) 2003-2020 Fabrice Bellard and the QEMU Project developers

  pci device being passed through:

  0b:05.0 Display controller [0380]: 3DLabs Permedia II 2D+3D [3d3d:0009] (rev 
        Subsystem: Tech-Source Permedia II 2D+3D [1227:0006]
        Flags: medium devsel, IRQ 11
        Memory at 83000000 (32-bit, non-prefetchable) [disabled] [size=128K]
        Memory at 82800000 (32-bit, non-prefetchable) [disabled] [size=8M]
        Memory at 82000000 (32-bit, non-prefetchable) [disabled] [size=8M]
        Expansion ROM at 83020000 [disabled] [size=64K]
        Capabilities: <access denied>
        Kernel driver in use: vfio-pci

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