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Is it possible to create a kernel object like KEVENT that will react to some change in physical memory if pointed to it correctly. We have a MMIO region of physical memory from the PCIe device, that will occupy regions between x and y, that contains structured data.
If that PCI device placed into phys mem x[0x100] a byte that if set to 1, signalling structure data between 0-0x100 is ready, otherwise wait.
Now the simplest solution would be polling but that is not clean. So can I create some type of kernel event which has some signal field which I could place on x[0x100], and the hardware can set that byte in physical mem.
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