Nintendo Switch Brew

21.0.0: Difference between revisions

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Add 20 -> 21 kernel diff
Fix some kernel diffs that were new in 20.1.0, not 21.0.0. I bindiff'd against 20.0.0, sorry :)
Line 365: Line 365:
* HandleFloatingPointException now sets a previously unused StackParameters flag (+0x2F) to 1.
* HandleFloatingPointException now sets a previously unused StackParameters flag (+0x2F) to 1.
** This flag doesn't seem to be referenced/used anywhere else in the kernel?
** This flag doesn't seem to be referenced/used anywhere else in the kernel?
* KInterruptManager/Controller was changed:
** KInterruptController::LocalState now stores the private spendsgir, which is also now saved/restored by KInterruptController::SaveLocalState/RestoreLocalState
** KSleepManager now spins for 100 microseconds before calling KInterruptManager::Save, after synchronizing all cores.
* cpu::DoCoreInterruptBarrier now uses a global KLightLock; this prevents more than one thread from performing an interrupt barrier at the same time.
* KThread StackParameter exception_flags bitflags are now volatile and mostly atomic; many bits now use atomic read-modify-write loops to set and clear bits.
* KThread StackParameter exception_flags bitflags are now volatile and mostly atomic; many bits now use atomic read-modify-write loops to set and clear bits.
** This is not done for bit 0 ("is in svc"), accesses specifically for bit 0 continue to use non-atomic reads/writes.
** This is not done for bit 0 ("is in svc"), accesses specifically for bit 0 continue to use non-atomic reads/writes.
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