On Fri, 7 Jul 2017 15:05:48 +0800 Eddie Yen <missile0...@gmail.com> wrote:
> Hi everyone, > > This question may dumb but I really don't know how to analysis the deeper > ID. > > According from Alex Williamson's VIO blog, we can do a trick that make all > NVIDIA or AMD GPUs catch and drive by VFIO driver. > > options vfio-pci ids= > 1002:ffffffff:ffffffff:ffffffff:00030000:ffff00ff,1002:ffffffff:ffffffff:ffffffff:00040300:ffffffff,10de:ffffffff:ffffffff:ffffffff:00030000:ffff00ff,10de:ffffffff:ffffffff:ffffffff:00040300:ffffffff > > But how do I know to found these information? > > For "00030000", I found that it means device class when check lspci. > But for "ffff00ff" in the 0300 end, I don't know where to find this > information. > > Because I may going to passthrough the compute GPU, like NVIDIA Tesla, and > obviously it will be a different device class and other ID position. > > Does anyone know about this? https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/pci/pci-stub.c#n25 MODULE_PARM_DESC(ids, "Initial PCI IDs to add to the stub driver, format is " "\"vendor:device[:subvendor[:subdevice[:class[:class_mask]]]]\"" " and multiple comma separated entries can be specified"); The trick is that these are uint32_t, so to get PCI_ANY_ID (~0) it needs to be needs to be specified as a full dword. Thanks, Alex _______________________________________________ vfio-users mailing list vfio-users@redhat.com https://www.redhat.com/mailman/listinfo/vfio-users
