8000 VIRTIO-PCI: failed to open /sys/bus/pci/devices/<BDF>/resource0 · Issue #34 · emmericp/ixy · GitHub
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VIRTIO-PCI: failed to open /sys/bus/pci/devices/<BDF>/resource0 #34
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VIRTIO-PCI: failed to open /sys/bus/pci/devices/<BDF>/resource0#34
@130B848

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@130B848
130B848
opened on Sep 24, 2021
  1. There is no resource0 but resource in my Ubuntu 20.04 VM
  • So I changed resource0 in virtio.c to resource.
  1. /sys/bus/pci/devices/<BDF>/resource is read-only, so ixy-pktgen failed because permission denied
  • I added write permissions to /sys/bus/pci/devices/<BDF>/resource (I also tried 777)
  1. Then it can open the resource, but failed at device.h:154 write_io8(): pwrite io resource after virtio_legacy_init(): Configuring bar0

Is there something wrong with my usage? Can anyone help?

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