Changes

===IPC===

===IPC===

PowerPC code is able to call IOSU drivers through an IPC interface. It uses the same call interface as IOSU does internally. Userspace code submits IOSU requests with the IPCKDriver_SubmitRequest() [[Cafe_OS_Kernel_Syscalls|syscall]] in the Cafe OS kernel. The kernel includes information to identify which Cafe OS process sent the request, allowing IOSU to check permissions on a per-app basis. Requests are contained in a struct, sent through a [[Hardware/IPC|hardware interface]], and marshalled by the IOSU kernel to a target process.

PowerPC code is able to call IOSU drivers through an IPC interface. It uses the same call interface as IOSU does internally. Userspace code submits IOSU requests with the IPCKDriver_SubmitRequest() [[Cafe_OS_Kernel_Syscalls|syscall]] in the Cafe OS kernel. The kernel includes information to identify which Cafe OS process sent the request, allowing IOSU to check permissions on a per-app basis. Requests are contained in a struct, sent through a [[Hardware/IPC|hardware interface]], and marshalled by the IOSU kernel to a target process. An example of IOSU IPC from the PowerPC can be found [https://github.com/darksideos/darkside-kernel/blob/wiiu/bal/src/platform/wiiu/ios.c here].

  IPC request struct (size = 0x48, align = 0x20)

  IPC request struct (size = 0x48, align = 0x20)