[Bug 1851664] Re: qemu-system-x86_64: "VFIO_MAP_DMA : -28" error when we attache 6 VF's to guest machine

[Thomas Huth]

Please provide information how you started QEMU, and some information
about your PCI device (e.g. the output of lspci).

** Information type changed from Private Security to Public

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

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https://bugs.launchpad.net/bugs/1851664

Title:
  qemu-system-x86_64: "VFIO_MAP_DMA : -28" error when we attache 6 VF's
  to guest machine

Status in QEMU:
  Incomplete

Bug description:
  We are trying to attach 6 VF's to the guest machine on 4.1.1 qemu emulator.
  We are observing "VFIO_MAP_DMA : -28" error.

  We are using w-bits=48 bits while lunching VM.

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