Displaying 2 results from an estimated 2 matches for "vfio_pci_enable".
2012 Oct 18
1
PCI device not properly reset after VFIO
...itialize the card and waits forever for the
firmware state to change.
I need to do a proper pci reset via
echo 1 > /sys/bus/pci/device/XXXX/reset
to get it into a working state again.
Looking at vfio_pci_disable() pci reset is called before the config
state and BARs are restored.
Seeing that vfio_pci_enable() calls pci reset right at the start,
too, before modifying anything I do wonder whether the pci reset is
at the correct location for disable.
I would have expected to call pci reset in vfio_pci_disable()
_after_ we have restored the configuration, to ensure a sane state
after reset.
And, as e...
2012 Oct 18
1
PCI device not properly reset after VFIO
...itialize the card and waits forever for the
firmware state to change.
I need to do a proper pci reset via
echo 1 > /sys/bus/pci/device/XXXX/reset
to get it into a working state again.
Looking at vfio_pci_disable() pci reset is called before the config
state and BARs are restored.
Seeing that vfio_pci_enable() calls pci reset right at the start,
too, before modifying anything I do wonder whether the pci reset is
at the correct location for disable.
I would have expected to call pci reset in vfio_pci_disable()
_after_ we have restored the configuration, to ensure a sane state
after reset.
And, as e...