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17,416 bytes added ,  03:08, 15 December 2020
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*
 
*
 
* Several issues were fixed, and usability and stability were improved.
 
* Several issues were fixed, and usability and stability were improved.
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===BootImagePackage===
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All files in RomFS were updated.
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====Secure Monitor====
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Secure Monitor was updated.
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* The firmware revision magic was changed from 0x1AD to 0x1CE.
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* Support was added for an additional DRAM model.
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====Warmboot====
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* The firmware revision magic was changed from 0x1AD to 0x1CE.
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====Kernel====
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* Kernel is now built with -Os instead of -O3
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** Many functions are no longer inlined.
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* crt0 deprivileging code now sets hypervisor EL2 registers.
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* 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.
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* Initialize0 has had several things re-ordered/shuffled:
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** InsertDevicePhysicalMemoryBlocks is now called immediately after the KernelCode region is inserted.
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** "Needed device virtual space" is now calculated as 3 * (0x18000 + { sum of KernelAutoMap physical device regions } + GetUnknownDebugDeviceRegionSize()
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** KernelMisc region size is now util::AlignUp(std::max(needed_device_virtual_space, 32_MB), 2_MB).
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** Code for mapping the unknown debug address as UnknownDebug is no longer present.
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** Slab region is now memset to zero after the linear region is mapped instead of before.
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** 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.
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* KMemoryRegion now has a "last_address" member replacing its "size" member.
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** GetSize() now calculated as (last_address - address + 1)
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* KMemoryRegionTree::Insert now takes in last address instead of size.
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** Several callsites now verify that last_address != 0xFFFF...
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* KMemoryRegionAllocator now uses a slabheap of count 200 instead of 1000.
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* KLinkedListNode now has slab size = #KThreads instead of #KThreads * 17.
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* "Virtual" cores now supported, KThread now stores core ID/affinity for both virtual and physical.
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* New SVC 0x37 "GetResourceLimitPeakValue"
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** Returns the highest value that a resource limit's current has ever achieved.
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** KResourceLimit now stores an array of peak values to enable this
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* Two new kernel objects, KAlpha and KBeta (placeholder names, true object names are unknown and cannot be guessed without observing purpose).
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** KAlpha has size 0x50, KBeta has size 0x88
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** KObjectAllocators for KAlpha/KBeta receive counts 1, 6.
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** KProcess has a list of KBeta, intrusive list node is at KBeta + 0x68.
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* Four new SVCs, ID 0x39, 0x3A, 0x46, 0x47
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** These are likely for interacting with KAlpha and KBeta, but on NX they are (presumably) if-def'd to be "return svc::ResultNotImplemented()"
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* KThread had all of its members reordered and its unused members deleted
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* Most KThread waits now use KThreadWaiterListIntrusiveNode instead of KThreadQueue
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* KConditionVariable no longer uses global threads for the call to .nfind()
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* KConditionVariable now sets the cv_key u32 value in userspace to 1 when a condvar has waiters, and to 0 when it does not.
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** New nnSdk code relies on this behavior.
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* SetupStackForUserModeThreadStarter (KThreadContext::Initialize) now sets X18 to (<cryptographically random u64> | 1), this value is unique for each thread.
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** This is used for Pointer Authentication changes in web browser.
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* KCoreLocalRegion deleted, replaced with pointer-to-current-thread
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** TPIDR_EL1 != X18 now, and TPIDR_EL1 now always points to the exception thread stack.
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* KSynchronization was deleted, replaced with namespaced or static-on-ksynchronization-object functions
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* KSynchronizationObject now contains a pointer to thread queue, instead of an inline list
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* KInterruptEvent no longer has an InterruptEventTask member
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* KInterruptEventTask::Reset no longer calls KInterruptManager::ClearInterrupt, instead it calls a new function which returns a result
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* KInterruptEventTask now has a KLightLock member
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* KHardwareTimer is now an interrupt task again
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* KHardwareTimer now has a new member "maximum_time", set to std::numeric_limits<s64>::value().
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** Tasks will only be added to the task list if their time is <= maximum_time, this is in addition to the >= 1 checks previously.
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* KIntrusiveRedBlackTreeNode now has common member functions instead of templated, size is now packed to 0x1C instead of 0x20.
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** All Insert/Remove/etc operations are common regardless of the type the node is intrusive in.
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* KDebugLogImpl::Initialize() now assumes uart has been configured for logging by the secure monitor, and does not perform tegra uart init sequence
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* vsprintf, KDebugString::PutString are now fully inlined inside KVPrintf.
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* KObjectContainer::Insert now returns void instead of Result
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** Code which previously did R_TRY() now just calls.
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* KPageHeapBitmapRng now has TinyMt as a data member, instead of directly implementing KPageHeap.
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** This affects how constructor is invoked.
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* New InfoType 24 ("FreeThreadCount") was added, gets the number of threads a process can allocate before exhausting its resource limit.
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* KMemoryBlock/KMemoryInfo now has extra members tracking u8 non_contig_bitflags, u16 ipc_non_contig_lock_count, u16 device_non_contig_lock_count
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* KMemoryBlockManager Update now takes non-contig flags to determine where to coalesce (all coalescing must now happen forwards instead of either direction)
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* KMemoryBlockManagerUpdateAllocator no longer has a result member, instead it has ->Initialize() which takes in a number of blocks to allocate
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* KMemoryManager::Allocate, KMemoryManager::AllocatePageGroup, KMemoryManager::AllocatePageGroupForProcess, now call KPageGroup::Open on the returned page group.
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** All callsites for these functions no longer call open after allocating.
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* KMemoryManager::Open is now KMemoryManager::OpenAdditionalReference, now checks that refcount is >= 1 instead of >= 0
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* KPageTableBase now has an additional data member "disable_device_address_space_merge"
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** KProcessPageTable::Initialize now takes in (process flags & 0x1000) as a bool argument to set this.
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* Page table Query operations now return a number of blocks required to support the above when relevant
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* KPageTable now uses 4 sw-reserved bits instead of 1
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** Former bit 0x01.... ("Is Mapped") is now bit 0x40..... (PTE bit 58)
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** PTE bit 55 "contiguous not allowed" was reworked for significantly more fine-grained control
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*** PTE bit 55 is now "start of block non-contiguous", coalescing cannot occur if the first block in a coalesce has this block set.
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*** 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
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*** PTE bit 57 is now "end of block non-contiguous", coalescing cannot occur if the last block in a coalesce has this bit set
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*** The old non-contiguous semantics are equivalent to 56 + 57 together.
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** These bits are now returned by KPageTableImpl::Traverse
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** Upper byte of KPageProperties is now bitflags to control management of these bits.
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** Bit 0x1 = "Set/Clear PTE Bit55"
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** Bit 0x2 = "Set PTE Bit56"
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** Bit 0x4 = "Clear PTE Bit56"
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** Bit 0x8 = "Set PTE Bit57"
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** Bit 0x10 = "Clear PTE Bit57"
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** Bit 0x20 = Force-Clear 56+57 + attempt to merge
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* KMemoryBlockManager/KPageTable now prevent coalescing of blocks which are reprotected --- (for transfer memory, ipc, ...)
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* They also do not coalesce adjacent GPU mappings that were mapped separately.
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* They removed the 0x80 "AnyLocked" bit from KMemoryAttribute
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* KMemoryBlock/KMemoryInfo now have additional u16 "device_non_coalesce_right_count".
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** Like device_non_coalesce_left_count from previous 11.x, this now prevents merging with block to the right if set.
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* KMemoryBlock::Add now takes in the memory block to the right instead of the size of the block to the right.
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** This facilitates combining flags for the newly coalesced blocks.
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* KPageTableBase::SetProcessMemoryPermission no longer sets non-coalesce bit 24.
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* KDeviceAddressSpace::Map/KDeviceAddressSpace::Unmap now call new KPageTableBase function to update non-coalesce state according to partial map state.
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* KDevicePageTable::UnmapImpl now invalidates TlbGroup in the failure case of adding to the page group.
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* KPageTableBase::MakeAndOpenContiguousPageGroup is now KPageTableBase::MakePageGroupForDeviceAddressSpace, and now prevents coalescing until call completion.
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** non_coalesce_mask 0x10 is used for this.
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* KPageTableBase::UnmapCodeMemory no longer requires the whole range have the same state.
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** It now invalidates instruction cache if any pages are code.
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* 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 *)
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** Returns whether a comparison between address_probably and address_2_probably holds depending on flags at pointer + 0x10.
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* KMemoryState_Io now goes to the alias code region in GetRegionAddress/Size (weird, seems like incorrect behavior)
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** 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.
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** This "probably" causes kernel panic if mapping IO into process with 32-bit-no-alias address space type?
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====FIRM Sysmodules====
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FIRM sysmodules were updated. Specific diffs available below:
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<check back for more diffs later>
    
==System Titles==
 
==System Titles==
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* The previously stubbed 010000000000001B sysmodule was replaced with [[Capmtp_services|capmtp]].
 
* The previously stubbed 010000000000001B sysmodule was replaced with [[Capmtp_services|capmtp]].
   −
[[NPDM]] changes:
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The following sysmodules had IPC changes: [[USB_services|usb]], [[Settings_services|settings]], [[BCAT_services|bcat]], [[PTM_services|ptm]], [[Sockets_services|bsdsockets]], [[HID_services|hid]], [[Audio_services|audio]], [[WLAN_services|wlan]], [[Account_services|account]], [[NS_Services|ns]], [[PSC_services|psc]], [[Applet_Manager_services|am]], [[NIM_services|nim]], [[Display_services|vi]], [[Parental_Control_services|pctl]], [[Glue_services|glue]], [[ETicket_services|es]], [[Shared_Database_services|sdb]], [[OLSC_services|olsc]], [[PGL_services|pgl]], [[Filesystem_services|fs]], [[Loader_services|loader]], [[Services_API|sm]], [[Capture_services|capsrv]].
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[[NPDM]] changes (see [[Services_API]] for service-hosting changes):
 
* All updated NPDMs now have [[NPDM#Flags|Flags]] bit5 set.
 
* All updated NPDMs now have [[NPDM#Flags|Flags]] bit5 set.
* ...
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* ptm: Access to hshl:set and ins:r were added.
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* ptm/hid: Various services were re-ordered in the Service Access Control.
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* wlan now has access to csrng.
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* ldn now has access to pl:u.
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* pcv now has access to hshl:set.
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* account now has access to ectx:w.
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* ns now has access to pl:u.
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* am: Access to the following was added: arp:r, aud:a, aud:d. Access to the following was removed: audin:a, audin:d, audout:a, audout:d, audren:a, audren:d. Access to hshl:set/hshl:sys was added.
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* erpt: Access to svcGetResourceLimitLimitValue and svc 0x37 were added. Access to ectx:r was added.
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* vi: The Handle Table Size was changed from 160 to 192. Access to the following services were added: erpt:c, gpio, i2c, lm, psc:m, pwm.
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* glue now has access to hshl:sys, and access to psm was removed.
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* creport now has access to fsp-srv.
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* sdb now has access to bcat:s and pm:info.
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* migration now has access to prepo:u.
 
* qlaunch now has access to [[Capmtp_services|capmtp]].
 
* qlaunch now has access to [[Capmtp_services|capmtp]].
 
* [[Controller_Applet|LibraryAppletController]] now has access to [[NGCT_services|ngct:u]].
 
* [[Controller_Applet|LibraryAppletController]] now has access to [[NGCT_services|ngct:u]].
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* [[Album_Applet|LibraryAppletPhotoViewer]]: Access to [[Sockets_services|bsd:u]] was replaced with [[Sockets_services|bsd:s]]. Access to [[LDN_services|lp2p:sys]] was added. Access to [[NS_Services|ns:am2]] was replaced with [[NS_Services|ns:ro]]. FS permission bit0 is now clear, MountContent* is no longer accessible.
 
* [[Album_Applet|LibraryAppletPhotoViewer]]: Access to [[Sockets_services|bsd:u]] was replaced with [[Sockets_services|bsd:s]]. Access to [[LDN_services|lp2p:sys]] was added. Access to [[NS_Services|ns:am2]] was replaced with [[NS_Services|ns:ro]]. FS permission bit0 is now clear, MountContent* is no longer accessible.
 
* [[Internet_Browser|LibraryAppletLoginShare]] now has access to [[NS_Services|ns:web]].
 
* [[Internet_Browser|LibraryAppletLoginShare]] now has access to [[NS_Services|ns:web]].
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RomFs changes:
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* CertStore was [[SSL_services#CertStore|updated]].
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* ErrorMessage: New errors were added / localization changes.
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* BrowserDll: The following was updated: "/browser/ErrorPageFilteringTemplate.html", "/browser/MediaControls.css", "/browser/MediaControls.js", "/browser/RootCaEtc.pem", "/browser/RootCaSdkAdditional.pem", "/buildinfo/buildinfo.dat". The following was added: "/browser/MediaControlsInline.css", "/browser/MediaControlsInline.js".
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** "/dll_0" and "/dll_1" were moved into "/nro/netfront/dll_{0/1}".
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** "/lyt/Lhub.arc" was added.
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** "/message/USpt/" was added.
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* Help:
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** "/legallines.htdocs/index.html" updated
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** "/safe.htdocs/html/USpt/" added
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** "/safe.htdocs/img/recyclenintendo.jpg" updated
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** "/safe.htdocs/js/tapaction.js" updated
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* NgWord: updated
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* AvatarImage: More icons added.
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* LocalNews: Added "/message/revision.txt" and "/message/USpt/".
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* Eula:
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** "/revision.txt" updated
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** Updated "/EUru/Eula.msbt.szs", "/JPja/Eula.msbt.szs".
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** Added "/USpt/".
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* TimeZoneBinary: TZ info updated.
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* FontNintendoExtension: "/nintendo_ext_003.bfttf" and "/nintendo_ext2_003.bfttf" were updated.
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* FirmwareDebugSettings: updated
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* FatalMessage: Updated "/pt-BR/GeneralMessage" and "/pt-BR/QuestMessage" were updated.
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* ControllerIcon: "/lyt/ColorTable" updated
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* PlatformConfigIcosa/PlatformConfigCopper/PlatformConfigHoag/PlatformConfigIcosaMariko: updated
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* ControllerFirmware: "/TouchScreenFirmwareInfo.csv" updated
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* NgWord2: updated
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* FunctionBlackList:
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** "/blacklist.dat" was replaced with "/blacklist.json".
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* NgWordT: updated
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* Applets: Various UI/graphics/sound/localization changes.
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* Web-applets: "/buildinfo/buildinfo.dat" was updated, and "/.nrr/netfront.nrr" was renamed to "/.nrr/dll.nrr".
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* [[Album_Applet|LibraryAppletPhotoViewer]]: In addition to the above, "/http/" was added, which contains the following:
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** "index.html"
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** "js/index.js"
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** "styles/index.css"
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The new Nintendo Switch Online menu (which can be launched via qlaunch) is handled by [[Internet_Browser#Whitelisted_Applets|LibraryAppletLoginShare]].
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=== [[HID_services|hid]]-sysmodule ===
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Besides IPC changes, the ButtonConfig cmds updated the input s32 validation: when the input s32 is invalid (which now uses an unsigned compare), it now returns 0 or an error immediately, instead of Aborting.
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=== [[LDN_services|ldn]]-sysmodule ===
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lp2p now supports using standard WPA2-PSK, which is used by [[#LibraryAppletPhotoViewer]].
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=== [[SSL_services|ssl]]-sysmodule ===
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TLS 1.3 is now [[SSL_services#SslVersion|supported]] if the user-process enables it.
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See also [[#OSS]].
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=== [[PGL_services|pgl]]-sysmodule ===
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* pgl now has a new ipc command, which just returns "ResultNotImplemented()"
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* pgl now detects when SnapShotDumper crashes, and launches creport in that case.
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* pgl now passes an additional argument to creport ("%d", formatted with the value of jit_debug!enable_jit_debug).
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=== [[Creport|creport]]-sysmodule ===
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* creport now takes in an additional argument "jit_debug_enabled", when this is "1" the target process is not terminated on report completion.
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* creport now has access to fsp-srv, this is used to retrieve debugging information that is now attached to error reports. The following functions are called (with output/info attached to erpts):
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** GetSdCardSpeedMode
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** GetSdCardCid
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** GetSdCardUserAreaSize
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** GetSdCardProtectedAreaSize
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** GetAndClearSdCardErrorInfo
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** IsGameCardInserted
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** GetGameCardCid
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** GetGameCardErrorReportInfo
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** GetGameCardDeviceId
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** GetMmcSpeedMode
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** GetMmcCid
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** GetMmcPatrolCount
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** GetAndClearMmcErrorInfo
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** GetMmcExtendedCsd
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** GetAndClearMemoryReportInfo
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** GetAndClearFileSystemProxyErrorInfo
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=== [[Internet_Browser|Web-applets]] ===
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These are now compiled with compiler Pointer Authentication / CFI mitigations enabled. This does not apply to non-web-applets.
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Pointer Authentication uses the crc32x instruction, and x18 as a cryptographically-random u64 provided by the kernel. The only userland code using x18 is the mul instruction for this, nothing else (applies to all NSOs/NROs).
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This is used to add/subtract x30 starting with bit40, during functions entry/exit. The code for entry/exit is identical, except that entry does add, and exit uses subtract:
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* The low 40-bits of x30 are extracted, then multiplied with x18.
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* <code>crc32x w17, wzr, x17</code> (which uses the above value)
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* Then the previously mentioned add/subtraction operation is done, with the output from the above shifted to bit40.
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The x18 is OR'd by kernel with 1, to make sure it is odd. This means that the multiply is a bijection; in other words, no entropy is lost when doing the multiply. If this had not been done, a random value that is divisible by a large power of two (the attacker can just keep spawning threads until gets such a one), would have weak cookies that allows the scheme to be trivially broken.
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CFI is implemented as follows: blr instructions no longer exist. When funcptrs are called, new functions are now called instead which handles the call. The u32 at funcptr_addr-4 must match 0xe7ffdefe, otherwise it will branch to undefined instruction 0x0000dead. Otherwise, it will jump to the funcptr_addr.
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Almost all functions now have the above u32 at -4, therefore funcptr calls now have to start at the actual funcptr start. However, this doesn't apply to calls done during functions' exit: these directly br to the funcptr_addr without extra validation. The br instructions in the .plt were also replaced with branches to the function described above.
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The above applies to all NSOs in ExeFs, except for LibraryAppletOfflineWeb which doesn't have it enabled. The NROs in the BrowserDll SystemData have it enabled for "/nro/netfront/dll_1/", however "dll_0" doesn't have it enabled (which is used by LibraryAppletOfflineWeb).
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This is referred to in the build-path strings as "NX-NXFP2-a64-cfi" (nnSdkEmpty), and "NX64-cfi" (OSS).
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 +
=== LibraryAppletPhotoViewer ===
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For details on the new sharing functionality in the Album applet, see [[Album_Applet|here]].
 +
 +
== OSS ==
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[https://www.nintendo.co.jp/support/oss/index.html OSS] was updated.
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Besides WebKit, [[SSL_services|NSS/NSPR]] was updated:
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* NSPR was updated from 4.12 to 4.24.
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* <code>#define NSSUTIL_VERSION  "3.26"</code> was changed to <code>#define NSSUTIL_VERSION "3.49.1"</code>
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Both src_{versions} directories were updated, with the same changes:
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* "rocrt_nro.cpp" updated
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* "NX-NXFP2-a64-cfi/rocrt.AssemblyOffset.h" Addded, identical to "NX-NXFP2-a64/rocrt.AssemblyOffset.h".
    
==See Also==
 
==See Also==

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