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- #NVIDIA CUDA VMWARE FUSION MAC LINUX DRIVERS#
- #NVIDIA CUDA VMWARE FUSION MAC LINUX DRIVER#
- #NVIDIA CUDA VMWARE FUSION MAC LINUX CODE#
NVidia officially dropped support for CUDA on macOS last year: I doubt I'll ever get around to it in my spare time though.Īs an interesting clarification or note to anyone reading this thread, it appears that, if xhyve did support pci passthrough for GPUs, then it would be one of the only (maybe the only) way(s) to do machine learning on macOS with NVidia GPUs. Still: I'd have to look into it in much more detail, but it does look doable. The other question is how well all of this works together with the amework's VM memory mappings. Neither of the key calls, IODMACommand::prepare and IODMACommand::gen64IOVMSegments reference the device, so it's not clear how the system works out what device you're going to give those DMA addresses to.
#NVIDIA CUDA VMWARE FUSION MAC LINUX CODE#
You'll notice the documentation you linked refers through to this doc where they go into code specifics. It's still not obvious how the connection to a device's specific mapper is made from a particular IOMemoryDescriptor/IODMACommand in the usual case of using the "system" mapper, which is the case in most device drivers.
#NVIDIA CUDA VMWARE FUSION MAC LINUX DRIVER#
Note also that if you're going to pass through one of your Mac's GPUs, the passthrough driver will need to claim it during early boot and make it completely unavailable to the host OS's graphics drivers, as WindowServer currently does not support any kind of hot-enabling/hot-disabling of IOFramebuffer Looks like you might be right, skimming through the VTd driver source some more, it looks like a new space is created for each mapper, and it would appear that most PCI devices get their own mapper, and kexts can explicitly ask for that mapper. (Or gaining that expertise the official documentation is very daunting, however.) So implementing this could well require extending Apple's VT-d driver, which will probably require the expertise of someone who understands VT-d really, really well.
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I certainly don't see an API there at first glance that a passthrough host driver might be able to call. That approach wouldn't be compatible with isolating a selection of devices for assigning to a VM.
#NVIDIA CUDA VMWARE FUSION MAC LINUX DRIVERS#
I've not dealt with this directly beyond writing (PCIe) device drivers for OSX, where DMAs need to select whether they want to use IOMMU address translation or not, but from this I have a sneaking suspicion that Apple just puts all devices in one IOMMU group and that's it. Graphics card passthrough adds extra difficulty, but that's mostly at the firmware/initialisation level.įor basic PCIe passthrough on OSX/MacOS hosts, I guess the first place to look would be Apple's VT-d driver, which is loaded by default on Ivy Bridge and newer Macs as far as I'm aware. You can do pure (non-mediated) PCI(e) passthrough with bhyve on FreeBSD and indeed Xen and KVM with Qemu on Linux though this works via a kernel driver which claims the device on the host (vfio on Linux), and programming the IOMMU so the device's DMA can only access the VM's memory. I don't know if the hypervisor/Dom0 (host) side of it is open at all. I don't have any personal experience with it, but XenServer's vGPU stuff is fully Nvidia-specific. (Stumbled across this as I'm investigating bhyve/xhyve for a project.)