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Line 1,112: + Line 1,120:
Line 1,121: − ** The callback is passed the disable-merge software-reserved bits from the entry, but this appears unused on NX. − *** This is probably for something in the Switch2 kernel/ifdef'd out. + + Line 1,157:
Line 1,158: − + − + +
improve kernel diff
==== Kernel ====
==== Kernel ====
* No/minimal compiler update
* No/minimal compiler update
* crt0 was restructured, Cache Invalidation/sctlr mmu disable are now different assembly functions.
* Inverted boolean(s) in system control/targetsystem logic
* Inverted boolean(s) in system control/targetsystem logic
** All KTargetSystem fields have inverted meaning
** All KTargetSystem fields have inverted meaning
** All callers on NX are KPageTable::NoteUpdated
** All callers on NX are KPageTable::NoteUpdated
** This causes TLB entries to be flushed/etc every time an entry is written instead of once at the end.
** This causes TLB entries to be flushed/etc every time an entry is written instead of once at the end.
* KAddressSpaceInfo::GetBegin now takes a size as a third argument; this is unused on NX.
* KAddressSpaceInfo::GetBegin now takes a size as a third argument; this is unused on NX.
** This is presumably only for debug assertions, probably to assert size <= region size.
** This code seems used incorrectly/bugged; it is passed a number of pages by one caller but a size by others.
* KAddressSpaceInfo::GetSize now performs more complicated logic based on the input type.
* KAddressSpaceInfo::GetSize now performs more complicated logic based on the input type.
** If address space not CreateProcessFlag_AddressSpace32BitWithoutAlias then the size is returned directly.
** If address space not CreateProcessFlag_AddressSpace32BitWithoutAlias then the size is returned directly.
** This is also done in ReturnFromException
** This is also done in ReturnFromException
* Kernel::InitializeResourceManagers now initializes the managers in a different order.
* Kernel::InitializeResourceManagers now initializes the managers in a different order.
* KPageTableBase::FindFreeArea now uses a helper to compute the start and end of the guarded region to generate an address within.
* FindFreeArea was refactored in both KMemoryBlockManager and KPageTableBase to use shared common logic to compute the start and end of the guarded region to generate an address within.
** The same logic is used (without helper, possibly inlined) in KMemoryBlockManager::FindFreeArea.
** The core helper is a KMemoryBlockManager function.
** KMemoryBlockManager::FindFreeArea calls this helper twice (both inlined); KPageTable::FindFreeArea calls it once.
==See Also==
==See Also==