On 13/11/20 4:06 pm, Alexey Kardashevskiy wrote:
We execute certain NPU2 setup code (such as mapping an LPID to a device in NPU2) unconditionally if an Nvlink bridge is detected. However this cannot succeed on P8+ machines as the init helpers return an error other than ENODEV which means the device is there is and setup failed so vfio_pci_enable() fails and pass through is not possible.This changes the two NPU2 related init helpers to return -ENODEV if there is no "memory-region" device tree property as this is the distinction between NPU and NPU2. Fixes: 7f92891778df ("vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver") Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
Should this be Cc: stable? Andrew -- Andrew Donnellan OzLabs, ADL Canberra a...@linux.ibm.com IBM Australia Limited
