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| ====Kernel==== | | ====Kernel==== |
− | <check back for diffs later> | + | * Kernel is now built with -Os instead of -O3 |
| + | ** Many functions are no longer inlined. |
| + | * crt0 deprivileging code now sets hypervisor EL2 registers. |
| + | * Logic for flushing entire data cache and invalidating entire TLB during init is now a function called by JumpFromEL2ToEL1 and DisableMmuICacheAndDCache instead of being duplicated. |
| + | * Initialize0 has had several things re-ordered/shuffled: |
| + | ** InsertDevicePhysicalMemoryBlocks is now called immediately after the KernelCode region is inserted. |
| + | ** "Needed device virtual space" is now calculated as 3 * (0x18000 + { sum of KernelAutoMap physical device regions } + GetUnknownDebugDeviceRegionSize() |
| + | ** KernelMisc region size is now util::AlignUp(std::max(needed_device_virtual_space, 32_MB), 2_MB). |
| + | ** Code for mapping the unknown debug address as UnknownDebug is no longer present. |
| + | ** Slab region is now memset to zero after the linear region is mapped instead of before. |
| + | ** Ranges are now more uniform; value in [range address / 2_MB, last_address / 2_MB] is generated and multipled by 2 MB instead of aligning down result. |
| + | * KMemoryRegion now has a "last_address" member replacing its "size" member. |
| + | ** GetSize() now calculated as (last_address - address + 1) |
| + | * KMemoryRegionTree::Insert now takes in last address instead of size. |
| + | ** Several callsites now verify that last_address != 0xFFFF... |
| + | * "Virtual" cores now supported, KThread now stores core ID/affinity for both virtual and physical. |
| + | * New SVC 0x37 "GetResourceLimitPeakValue" |
| + | ** Returns the highest value that a resource limit's current has ever achieved. |
| + | ** KResourceLimit now stores an array of peak values to enable this |
| + | * Two new kernel objects, KAlpha and KBeta (placeholder names, true object names are unknown and cannot be guessed without observing purpose). |
| + | ** KAlpha has size 0x50, KBeta has size 0x88 |
| + | ** KObjectAllocators for KAlpha/KBeta receive counts 1, 6. |
| + | ** KProcess has a list of KBeta, intrusive list node is at KBeta + 0x68. |
| + | * Four new SVCs, ID 0x39, 0x3A, 0x46, 0x47 |
| + | ** These are likely for interacting with KAlpha and KBeta, but on NX they are (presumably) if-def'd to be "return svc::ResultNotImplemented()" |
| + | * KThread had all of its members reordered and its unused members deleted |
| + | * Most KThread waits now use KThreadWaiterListIntrusiveNode instead of KThreadQueue |
| + | * KConditionVariable no longer uses global threads for the call to .nfind() |
| + | * KCoreLocalRegion deleted, replaced with pointer-to-current-thread |
| + | ** TPIDR_EL1 != X18 now, and TPIDR_EL1 now always points to the exception thread stack. |
| + | * KSynchronization was deleted, replaced with namespaced or static-on-ksynchronization-object functions |
| + | * KSynchronizationObject now contains a pointer to thread queue, instead of an inline list |
| + | * KInterruptEvent no longer has an InterruptEventTask member |
| + | * KInterruptEventTask::Reset no longer calls KInterruptManager::ClearInterrupt, instead it calls a new function which returns a result |
| + | * KInterruptEventTask now has a KLightLock member |
| + | * KHardwareTimer is now an interrupt task again |
| + | * KHardwareTimer now has a new member "maximum_time", set to std::numeric_limits<s64>::value(). |
| + | ** Tasks will only be added to the task list if their time is <= maximum_time, this is in addition to the >= 1 checks previously. |
| + | * KIntrusiveRedBlackTreeNode now has common member functions instead of templated, size is now packed to 0x1C instead of 0x20. |
| + | ** All Insert/Remove/etc operations are common regardless of the type the node is intrusive in. |
| + | * KDebugLogImpl::Initialize() now assumes uart has been configured for logging by the secure monitor, and does not perform tegra uart init sequence |
| + | * vsprintf, KDebugString::PutString are now fully inlined inside KVPrintf. |
| + | * KObjectContainer::Insert now returns void instead of Result |
| + | ** Code which previously did R_TRY() now just calls. |
| + | * KPageHeapBitmapRng now has TinyMt as a data member, instead of directly implementing KPageHeap. |
| + | ** This affects how constructor is invoked. |
| + | * KMemoryBlock/KMemoryInfo now has extra members tracking u8 non_contig_bitflags, u16 ipc_non_contig_lock_count, u16 device_non_contig_lock_count |
| + | * KMemoryBlockManager Update now takes non-contig flags to determine where to coalesce (all coalescing must now happen forwards instead of either direction) |
| + | * KMemoryBlockManagerUpdateAllocator no longer has a result member, instead it has ->Initialize() which takes in a number of blocks to allocate |
| + | * KMemoryManager::Allocate, KMemoryManager::AllocatePageGroup, KMemoryManager::AllocatePageGroupForProcess, now call KPageGroup::Open on the returned page group. |
| + | ** All callsites for these functions no longer call open after allocating. |
| + | * KMemoryManager::Open is now KMemoryManager::OpenAdditionalReference, now checks that refcount is >= 1 instead of >= 0 |
| + | * KPageTableBase now has an additional data member "disable_device_address_space_merge" |
| + | ** KProcessPageTable::Initialize now takes in (process flags & 0x1000) as a bool argument to set this. |
| + | * Page table Query operations now return a number of blocks required to support the above when relevant |
| + | * KPageTable now uses 4 sw-reserved bits instead of 1 |
| + | ** Former bit 0x01.... ("Is Mapped") is now bit 0x40..... (PTE bit 58) |
| + | ** PTE bit 55 "contiguous not allowed" was reworked for significantly more fine-grained control |
| + | *** PTE bit 55 is now "start of block non-contiguous", coalescing cannot occur if the first block in a coalesce has this block set. |
| + | *** PTE bit 56 is now "not-end-of-block non-contiguous", coalescing cannot occur if a block other than the last in a coalesce has this bit set |
| + | *** PTE bit 57 is now "end of block non-contiguous", coalescing cannot occur if the last block in a coalesce has this bit set |
| + | *** The old non-contiguous semantics are equivalent to 56 + 57 together. |
| + | ** These bits are now returned by KPageTableImpl::Traverse |
| + | ** Upper byte of KPageProperties is now bitflags to control management of these bits. |
| + | ** Bit 0x1 = "Set/Clear PTE Bit55" |
| + | ** Bit 0x2 = "Set PTE Bit56" |
| + | ** Bit 0x4 = "Clear PTE Bit56" |
| + | ** Bit 0x8 = "Set PTE Bit57" |
| + | ** Bit 0x10 = "Clear PTE Bit57" |
| + | ** Bit 0x20 = Force-Clear 56+57 + attempt to merge |
| + | * KMemoryBlockManager/KPageTable now prevent coalescing of blocks which are reprotected --- (for transfer memory, ipc, ...) |
| + | * They also do not coalesce adjacent GPU mappings that were mapped separately. |
| + | * They removed the 0x80 "AnyLocked" bit from KMemoryAttribute |
| + | * KMemoryBlock/KMemoryInfo now have additional u16 "device_non_coalesce_right_count". |
| + | ** Like device_non_coalesce_left_count from previous 11.x, this now prevents merging with block to the right if set. |
| + | * KMemoryBlock::Add now takes in the memory block to the right instead of the size of the block to the right. |
| + | ** This facilitates combining flags for the newly coalesced blocks. |
| + | * KPageTableBase::SetProcessMemoryPermission no longer sets non-coalesce bit 24. |
| + | * KDeviceAddressSpace::Map/KDeviceAddressSpace::Unmap now call new KPageTableBase function to update non-coalesce state according to partial map state. |
| + | * KDevicePageTable::UnmapImpl now invalidates TlbGroup in the failure case of adding to the page group. |
| + | * KPageTableBase::MakeAndOpenContiguousPageGroup is now KPageTableBase::MakePageGroupForDeviceAddressSpace, and now prevents coalescing until call completion. |
| + | ** non_coalesce_mask 0x10 is used for this. |
| + | * KPageTableBase::UnmapCodeMemory no longer requires the whole range have the same state. |
| + | ** It now invalidates instruction cache if any pages are code. |
| + | * KPageTable::UnknownVirtualFunction10 now takes in more arguments: _QWORD (address probably), _QWORD (size probably), two bools, _QWORD (address2 probably), _QWORD (size2 probably), void * (probably KAlpha * or KBeta *) |
| + | ** Returns whether a comparison between address_probably and address_2_probably holds depending on flags at pointer + 0x10. |
| + | * KMemoryState_Io now goes to the alias code region in GetRegionAddress/Size (weird, seems like incorrect behavior) |
| + | ** Also very weird: KPageTableBase::MapIo maps IO into the kernel map region, but KPageTableBase::QueryMapping panics if it is not in the alias code region. |
| + | ** This "probably" causes kernel panic if mapping IO into process with 32-bit-no-alias address space type? |
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| ====FIRM Sysmodules==== | | ====FIRM Sysmodules==== |