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Questions - macos-system-extension

MacOS PCI dext: scatter-gather DMA to application buffer

I am porting a MacOS PCI driver written with IOKit to the new PCIDriverKit framework. I am able to perform DMA with a contiguous buffer allocated inside the dext (with IOBufferMemoryDescriptor::Create...
test-img

Philippe Cornet

macos

device-driver

iokit

driverkit

macos-system-extension

Votes: 0

Answers: 1

Latest Answer

It's not quite the same question as yours, but in my answer to it I go into some detail on memory descriptors in DriverKit extensions. Basically, in DriverKit you can only access user space memory tha...
test-img

pmdj

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