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NPDM (view source)

Revision as of 21:35, 22 February 2023

7,681 bytes added ,  21:35, 22 February 2023
→‎MemoryRegionMap
Line 1: Line 1: −
This is the Switch equivalent of 3DS exheader. This is the file with extension ".npdm" in {Switch ExeFS}. The size of this file varies.
+
This is the Switch equivalent of 3DS [https://www.3dbrew.org/wiki/NCCH/Extended_Header exheader]. This is the file with extension ".npdm" in {Switch ExeFS}. The size of this file varies.
    
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
Line 9: Line 9:  
| 0x0
 
| 0x0
 
| 0x80
 
| 0x80
−
| META
+
| [[#META|META]]
 
|-
 
|-
 
| 0x80
 
| 0x80
 
| <Varies>
 
| <Varies>
−
| ACID
+
| [[#ACID|ACID]]
 
|-
 
|-
 
| <See META>
 
| <See META>
 
| <See META>
 
| <See META>
−
| ACI0
+
| [[#ACI0|ACI0]]
 
|}
 
|}
   Line 29: Line 29:  
| 0x0
 
| 0x0
 
| 0x4
 
| 0x4
−
| Magic "META".
+
| Magic ("META")
 +
|-
 +
| 0x4
 +
| 0x4
 +
| [9.0.0+] SignatureKeyGeneration
 +
|-
 +
| 0x8
 +
| 0x4
 +
| Reserved
 +
|-
 +
| 0xC
 +
| 0x1
 +
| [[#Flags|Flags]]
 +
|-
 +
| 0xD
 +
| 0x1
 +
| Reserved
 
|-
 
|-
 
| 0xE
 
| 0xE
−
| 1
+
| 0x1
−
|  
+
| [[#MainThreadPriority|MainThreadPriority]]
 
|-
 
|-
 
| 0xF
 
| 0xF
−
| 1
+
| 0x1
−
|  
+
| MainThreadCoreNumber
 +
|-
 +
| 0x10
 +
| 0x4
 +
| Reserved
 +
|-
 +
| 0x14
 +
| 0x4
 +
| [3.0.0+] [[#SystemResourceSize|SystemResourceSize]]
 +
|-
 +
| 0x18
 +
| 0x4
 +
| [[#Version|Version]]
 
|-
 
|-
 
| 0x1C
 
| 0x1C
−
| 4
+
| 0x4
−
|  
+
| [[#MainThreadStackSize|MainThreadStackSize]]
 
|-
 
|-
 
| 0x20
 
| 0x20
−
| ?
+
| 0x10
−
| Title name
+
| Name (usually/always "Application")
 +
|-
 +
| 0x30
 +
| 0x10
 +
| ProductCode (usually/always all zeroes)
 +
|-
 +
| 0x40
 +
| 0x30
 +
| Reserved
 
|-
 
|-
 
| 0x70
 
| 0x70
 
| 0x4
 
| 0x4
−
| [[#ACI0]] offset
+
| [[#ACI0|AciOffset]]
 
|-
 
|-
 
| 0x74
 
| 0x74
 
| 0x4
 
| 0x4
−
| [[#ACI0]] size
+
| [[#ACI0|AciSize]]
 
|-
 
|-
 
| 0x78
 
| 0x78
 
| 0x4
 
| 0x4
−
| [[#ACID]] offset
+
| [[#ACID|AcidOffset]]
 
|-
 
|-
 
| 0x7C
 
| 0x7C
 
| 0x4
 
| 0x4
−
| [[#ACID]] size
+
| [[#ACID|AcidSize]]
 +
|}
 +
 
 +
== Flags ==
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 0
 +
| Is64BitInstruction
 +
|-
 +
| 1-3
 +
| ProcessAddressSpace (0x00 = AddressSpace32Bit, 0x01 = AddressSpace64BitOld, 0x02 = AddressSpace32BitNoReserved, 0x03 = AddressSpace64Bit)
 +
|-
 +
| 4
 +
| [7.0.0+] OptimizeMemoryAllocation
 +
|-
 +
| 5
 +
| [11.0.0+] DisableDeviceAddressSpaceMerge
 
|}
 
|}
 +
 +
== MainThreadPriority ==
 +
Ranges from 0 to 0x3F.
 +
 +
== SystemResourceSize ==
 +
When this is non-zero, the kernel reserves this amount of memory and dynamically uses it as needed for page table pages, KMemoryBlocks, and KBlockInfos. When this is zero, the process uses global shared heaps for these.
 +
 +
This enables a process to sacrifice some of the memory available to it in order to have higher limits on these resources, thus enabling the use of SvcMapPhysicalMemory.
 +
 +
Maximum size as is 0x1FE00000.
 +
 +
 +
== Version ==
 +
0 for all titles.
 +
 +
[8.1.0+] Now set to 1 for certain titles.
 +
 +
[9.0.0+] Now set to a proper version field for all titles.
 +
 +
== MainThreadStackSize ==
 +
Must be aligned to 0x1000. If zero, kernel will start the process's initial thread with sp=0.
    
= ACID =
 
= ACID =
Line 71: Line 147:  
! Description
 
! Description
 
|-
 
|-
−
| 0
+
| 0x0
 
| 0x100
 
| 0x100
−
| RSA-2048 signature, seems to verify the data starting at 0x100 with the size field from 0x204.
+
| RSA-2048 signature over the data starting at 0x100 with the size field from 0x204
 
|-
 
|-
 
| 0x100
 
| 0x100
 
| 0x100
 
| 0x100
−
| RSA-2048 public key, seems to be used for the second [[NCA_Format|NCA]] signature.
+
| RSA-2048 public key for the second [[NCA_Format|NCA]] signature
 
|-
 
|-
 
| 0x200
 
| 0x200
 
| 0x4
 
| 0x4
−
| Magic "ACID".
+
| Magic ("ACID")
 
|-
 
|-
 
| 0x204
 
| 0x204
 
| 0x4
 
| 0x4
−
| s32 Size field used with the above signature(?).
+
| Size
 
|-
 
|-
 
| 0x208
 
| 0x208
−
| 0x4
+
| 0x1
−
| Zeroes
+
| [9.0.0+] Version
 +
|-
 +
| 0x209
 +
| 0x1
 +
| [14.0.0+]
 +
|-
 +
| 0x20A
 +
| 0x2
 +
| Reserved
 
|-
 
|-
 
| 0x20C
 
| 0x20C
 
| 0x4
 
| 0x4
−
| Retail flag. Must be 1 on retail, on devunit 0 is also allowed.
+
| [[#Flags_2|Flags]]
 
|-
 
|-
 
| 0x210
 
| 0x210
 
| 0x8
 
| 0x8
−
| Title id
+
| ProgramIdMin
 
|-
 
|-
 
| 0x218
 
| 0x218
 
| 0x8
 
| 0x8
−
| Title id again
+
| ProgramIdMax
 
|-
 
|-
 
| 0x220
 
| 0x220
 
| 0x4
 
| 0x4
−
| [[#FS Access Control]] offset
+
| [[#FsAccessControl|FacOffset]]
 
|-
 
|-
 
| 0x224
 
| 0x224
 
| 0x4
 
| 0x4
−
| [[#FS Access Control]] size
+
| [[#FsAccessControl|FacSize]]
 
|-
 
|-
 
| 0x228
 
| 0x228
 
| 0x4
 
| 0x4
−
| [[#Service Access Control]] offset
+
| [[#SrvAccessControl|SacOffset]]
 
|-
 
|-
 
| 0x22C
 
| 0x22C
 
| 0x4
 
| 0x4
−
| [[#Service Access Control]] size
+
| [[#SrvAccessControl|SacSize]]
 
|-
 
|-
 
| 0x230
 
| 0x230
−
| 4
+
| 0x4
−
| [[#Kernel Access Control]] offset
+
| [[#KernelCapability|KcOffset]]
 
|-
 
|-
 
| 0x234
 
| 0x234
−
| 4
+
| 0x4
−
| [[#Kernel Access Control]] size
+
| [[#KernelCapability|KcSize]]
 
|-
 
|-
 
| 0x238
 
| 0x238
 
| 0x8
 
| 0x8
−
| Padding
+
| Reserved
 +
|}
 +
 
 +
== Flags ==
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 0
 +
| ProductionFlag
 +
|-
 +
| 1
 +
| UnqualifiedApproval
 +
|-
 +
| 2-5
 +
| [5.0.0+] MemoryRegion (0 = Application, 1 = Applet, 2 = SecureSystem, 3 = NonSecureSystem)
 
|}
 
|}
 +
 +
MemoryRegion is set to Application for "starter" and NonSecureSystem for "nvservices".
    
= ACI0 =
 
= ACI0 =
−
Looks like an old crappy version of ACID. It has the guessed version field 0 instead of 1.
+
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x4
 +
| Magic ("ACI0")
 +
|-
 +
| 0x4
 +
| 0xC
 +
| Reserved
 +
|-
 +
| 0x10
 +
| 0x8
 +
| ProgramId
 +
|-
 +
| 0x18
 +
| 0x8
 +
| Reserved
 +
|-
 +
| 0x20
 +
| 0x4
 +
| [[#FsAccessControl|FacOffset]]
 +
|-
 +
| 0x24
 +
| 0x4
 +
| [[#FsAccessControl|FacSize]]
 +
|-
 +
| 0x28
 +
| 0x4
 +
| [[#SrvAccessControl|SacOffset]]
 +
|-
 +
| 0x2C
 +
| 0x4
 +
| [[#SrvAccessControl|SacSize]]
 +
|-
 +
| 0x30
 +
| 0x4
 +
| [[#KernelCapability|KcOffset]]
 +
|-
 +
| 0x34
 +
| 0x4
 +
| [[#KernelCapability|KcSize]]
 +
|-
 +
| 0x38
 +
| 0x8
 +
| Reserved
 +
|}
   −
= FS Access Control =
+
= FsAccessControl =
 +
For [[#ACID|ACID]] this is a simple descriptor as follows:
 +
{| class="wikitable" border="1"
 +
|-
 +
! Offset
 +
! Size
 +
! Description
 +
|-
 +
| 0x0
 +
| 0x1
 +
| Version (always 1, must be non-zero)
 +
|-
 +
| 0x1
 +
| 0x1
 +
| [5.0.0+] ContentOwnerIdCount
 +
|-
 +
| 0x2
 +
| 0x1
 +
| [5.0.0+] SaveDataOwnerIdCount
 +
|-
 +
| 0x3
 +
| 0x1
 +
| Padding
 +
|-
 +
| 0x4
 +
| 0x8
 +
| [[#FsAccessFlag|FsAccessFlag]]
 +
|-
 +
| 0xC
 +
| 0x8
 +
| ContentOwnerIdMin
 +
|-
 +
| 0x14
 +
| 0x8
 +
| ContentOwnerIdMax
 +
|-
 +
| 0x1C
 +
| 0x8
 +
| SaveDataOwnerIdMin
 +
|-
 +
| 0x24
 +
| 0x8
 +
| SaveDataOwnerIdMax
 +
|-
 +
| 0x2C
 +
| 0x8 * ContentOwnerIdCount
 +
| [5.0.0+] ContentOwnerIds
 +
|-
 +
| Variable
 +
| 0x8 * SaveDataOwnerIdCount
 +
| [5.0.0+] SaveDataOwnerIds
 +
|}
    +
For [[#ACI0|ACI0]] this embeds data as follows:
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
 
|-
 
|-
−
! Word
+
! Offset
−
! Bit
+
! Size
 
! Description
 
! Description
 
|-
 
|-
−
| 0
+
| 0x0
−
|
+
| 0x1
−
| Version? Always 1.
+
| Version (always 1, must be non-zero)
 +
|-
 +
| 0x1
 +
| 0x3
 +
| Padding
 +
|-
 +
| 0x4
 +
| 0x8
 +
| [[#FsAccessFlag|FsAccessFlag]]
 +
|-
 +
| 0xC
 +
| 0x4
 +
| ContentOwnerInfoOffset
 +
|-
 +
| 0x10
 +
| 0x4
 +
| ContentOwnerInfoSize
 +
|-
 +
| 0x14
 +
| 0x4
 +
| SaveDataOwnerInfoOffset
 +
|-
 +
| 0x18
 +
| 0x4
 +
| SaveDataOwnerInfoSize
 +
|-
 +
| 0x1C
 +
| 0x4
 +
| (Optional) ContentOwnerIdCount
 +
|-
 +
| 0x1C
 +
| 0x8 * ContentOwnerIdCount
 +
| ContentOwnerIds
 +
|-
 +
| Variable
 +
| 0x4
 +
| SaveDataOwnerIdCount
 +
|-
 +
| Variable
 +
| 0x1 * SaveDataOwnerIdCount
 +
| Accessibilities (1=Read, 2=Write, 3=ReadWrite)
 +
|-
 +
| Variable (padded to nearest 4 bytes)
 +
| 0x8 * SaveDataOwnerIdCount
 +
| SaveDataOwnerIds
 +
|}
 +
 
 +
== FsAccessFlag ==
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Name
 +
! Description
 
|-
 
|-
−
| 1
   
| 0
 
| 0
 +
| ApplicationInfo
 
| MountContent* is accessible when set.
 
| MountContent* is accessible when set.
 
|-
 
|-
 
| 1
 
| 1
 +
| BootModeControl
 +
|
 +
|-
 
| 2
 
| 2
−
| Enables access to [[Filesystem_services|Bis]] partitionID 27 and 28?
+
| Calibration
 +
|
 +
|-
 +
| 3
 +
| SystemSaveData
 +
|
 +
|-
 +
| 4
 +
| GameCard
 +
|
 +
|-
 +
| 5
 +
| SaveDataBackUp
 +
|
 +
|-
 +
| 6
 +
| SaveDataManagement
 +
|
 +
|-
 +
| 7
 +
| BisAllRaw
 +
|
 +
|-
 +
| 8
 +
| GameCardRaw
 +
|
 +
|-
 +
| 9
 +
| GameCardPrivate
 +
|
 +
|-
 +
| 10
 +
| SetTime
 +
|
 +
|-
 +
| 11
 +
| ContentManager
 +
|
 +
|-
 +
| 12
 +
| ImageManager
 +
|
 +
|-
 +
| 13
 +
| CreateSaveData
 +
|
 +
|-
 +
| 14
 +
| SystemSaveDataManagement
 +
|
 +
|-
 +
| 15
 +
| BisFileSystem
 +
|
 +
|-
 +
| 16
 +
| SystemUpdate
 +
|
 +
|-
 +
| 17
 +
| SaveDataMeta
 +
|
 +
|-
 +
| 18
 +
| DeviceSaveData
 +
|
 +
|-
 +
| 19
 +
| SettingsControl
 +
|
 +
|-
 +
| 20
 +
| SystemData
 +
|
 +
|-
 +
| 21
 +
| SdCard
 +
|
 +
|-
 +
| 22
 +
| Host
 +
|
 +
|-
 +
| 23
 +
| FillBis
 +
|
 +
|-
 +
| 24
 +
| CorruptSaveData
 +
|
 +
|-
 +
| 25
 +
| SaveDataForDebug
 +
|
 +
|-
 +
| 26
 +
| FormatSdCard
 +
|
 +
|-
 +
| 27
 +
| GetRightsId
 +
|
 +
|-
 +
| 28
 +
| RegisterExternalKey
 +
|
 +
|-
 +
| 29
 +
| RegisterUpdatePartition
 +
|
 +
|-
 +
| 30
 +
| SaveDataTransfer
 +
|
 +
|-
 +
| 31
 +
| DeviceDetection
 +
|
 +
|-
 +
| 32
 +
| AccessFailureResolution
 +
|
 +
|-
 +
| 33
 +
| SaveDataTransferVersion2
 +
|
 +
|-
 +
| 34
 +
| RegisterProgramIndexMapInfo
 +
|
 +
|-
 +
| 35
 +
| CreateOwnSaveData
 +
|
 +
|-
 +
| 36
 +
| MoveCacheStorage
 +
|
 +
|-
 +
| 37
 +
| DeviceTreeBlob
 +
|
 +
|-
 +
| 38
 +
| NotifyErrorContextServiceReady
 +
|
 +
|-
 +
| 39-61
 +
| Reserved
 +
|
 +
|-
 +
| 62
 +
| Debug
 +
| See [[SPL_services#GetConfig|here]].
 +
|-
 +
| 63
 +
| FullPermission
 +
| Enables access to everything: all [[Filesystem_services#Permissions|permission types]] which check a bitmask have this bit set.
 
|}
 
|}
   −
For bit62 in word1, see [[SPL_services#GetConfig|here]].
+
Controls the [[Filesystem_services#Permissions|filesystem permissions]].
   −
Web-applets access control:
+
Web-applets permissions:
−
* "LibAppletWeb" and "LibAppletOff" have same access control: word0 bit0 set, word1 bit0 and bit3 set, and word2 bit30 set.
+
* "LibAppletWeb" and "LibAppletOff" have same access control: bit0 and bit3 set, and bit62 set.
−
* Rest of the web-applets: Same as above except word1 bit0 isn't set.
+
* Rest of the web-applets: Same as above except bit0 isn't set.
    
= Service Access Control =
 
= Service Access Control =
−
This is a list of [[Services_API|service]]-name strings which the title has access to, with the following structure:
+
{| class="wikitable" border="1"
−
  +0: control_byte
+
|-
−
  +1: {service-name without nul-terminator}
+
! Bits
−
 
+
! Description
−
Bitmask 0x0F in control_byte is the {length of the service-name without nul-terminator} - 1.
+
|-
−
 
+
| 0-2
−
Bitmask 0x80 in control_byte means service is allowed to be registered.
+
| Size (length of the service-name without null-terminator minus 1)
 +
|-
 +
| 7
 +
| IsServer (service is allowed to be registered)
 +
|-
 +
| Variable
 +
| Name
 +
|}
   −
The service string can contain a wildcard <code>*</code> character.
+
This is a list of [[Services_API|service]]-name strings which the title has access to.
   −
= Kernel Access Control =
+
The service name string starts after the first byte and supports the wildcard <code>*</code> character.
−
On Switch, descriptors are identified by pattern 01..11 in low bits.
      +
= KernelCapability =
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
 
|-
 
|-
 
! Pattern of lower bits
 
! Pattern of lower bits
 
! Lowest clear bitmask/bit
 
! Lowest clear bitmask/bit
−
! Type
+
! Description
−
! Fields
   
|-
 
|-
 
| <code>0bxxxxxxxxxxxx0111</code>
 
| <code>0bxxxxxxxxxxxx0111</code>
 
| Bit3
 
| Bit3
−
| KernelFlags
+
| [[#ThreadInfo]]
−
| Bit31-24: Highest allowed cpu id, bit23-16: Lowest allowed cpu id, bit15-10: Highest allowed thread prio, bit9-4: Lowest allowed thread prio
   
|-
 
|-
 
| <code>0bxxxxxxxxxxx01111</code>
 
| <code>0bxxxxxxxxxxx01111</code>
 
| Bit4
 
| Bit4
−
| SyscallMask
+
| [[#EnableSystemCalls]]
−
| Bits 29-31: Syscall mask table index; Bits 5-28: Mask
   
|-
 
|-
 
| <code>0bxxxxxxxxx0111111</code>
 
| <code>0bxxxxxxxxx0111111</code>
 
| Bit6
 
| Bit6
−
| MapIoOrNormalRange
+
| [[#MemoryMap]]
−
| Bits 7-30: Alternating start page and number of pages, bit31: Alternating read-only flag then MemoryAttribute 0x2001/0x42002 selector flag
   
|-
 
|-
 
| <code>0bxxxxxxxx01111111</code>
 
| <code>0bxxxxxxxx01111111</code>
 
| Bit7
 
| Bit7
−
| MapNormalPage (RW)
+
| [[#IoMemoryMap]]
−
| Bits 7-31: Page
+
|-
 +
| <code>0bxxxxx01111111111</code>
 +
| Bit10
 +
| [8.0.0+] [[#MemoryRegionMap]]
 
|-
 
|-
 
| <code>0bxxxx011111111111</code>
 
| <code>0bxxxx011111111111</code>
 
| Bit11
 
| Bit11
−
| Interrupt pair
+
| [[#EnableInterrupts]]
−
| Bits 12-21: Irq0, bits 20-31: Irq1, 0x3FF means empty.
+
|-
 +
| <code>0bxx01111111111111</code>
 +
| Bit13
 +
| [[#MiscParams]]
 
|-
 
|-
 
| <code>0bx011111111111111</code>
 
| <code>0bx011111111111111</code>
 
| Bit14
 
| Bit14
−
| KernelReleaseVersion
+
| [[#KernelVersion]]
−
| Bits 15-X: Version. The raw descriptor is compared with 0x80000, when less than an error is returned. This is equivalent to comparing the bits starting at bit15 with 0x10. This enforces a minimum required version, not a maximum.
   
|-
 
|-
 
| <code>0b0111111111111111</code>
 
| <code>0b0111111111111111</code>
 
| Bit15
 
| Bit15
−
| HandleTableSize
+
| [[#HandleTableSize]]
−
| Bit26-16: Number of handles the table shall fit.
   
|-
 
|-
 
| <code>0b1111111111111111</code>
 
| <code>0b1111111111111111</code>
 
| Bit16
 
| Bit16
−
| DebugFlags
+
| [[#MiscFlags]]
−
| Bit17: can be debugged, bit18: can debug others
   
|-
 
|-
 
| All ones
 
| All ones
 
|  
 
|  
−
| Ignored
+
| Invalid
−
|
+
|}
 +
 
 +
These descriptors are identified by pattern 01..11 in low bits.
 +
 
 +
== ThreadInfo ==
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 4-9
 +
| LowestPriority
 +
|-
 +
| 10-15
 +
| HighestPriority
 +
|-
 +
| 16-23
 +
| MinCoreNumber
 +
|-
 +
| 24-31
 +
| MaxCoreNumber
 +
|}
 +
 
 +
== EnableSystemCalls ==
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 5-28
 +
| SystemCallId
 +
|-
 +
| 29-31
 +
| Index
 +
|}
 +
 
 +
== MemoryMap ==
 +
MemoryMap entries are stored in pairs. The first pair will contain BeginAddress and PermissionType, while the second pair will contain Size and MappingType.
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 7-30
 +
| BeginAddress
 +
|-
 +
| 31
 +
| PermissionType (0=RW, 1=RO)
 +
|}
 +
 
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 7-26
 +
| Size
 +
|-
 +
| 27-30
 +
| Reserved
 +
|-
 +
| 31
 +
| MappingType (0=Io, 1=Static)
 +
|}
 +
 
 +
=== Restrictions ===
 +
The physaddr range 0x80060000-0x2000000000 is not allowed to be mapped as IO.
 +
The physaddr range 0x80000000-0x2000000000 is not allowed to be mapped as Normal.
 +
 
 +
[2.0.0-4.1.0] The range for IO was changed into 0x80060000-0x81D3FFFF.
 +
 
 +
[2.0.0-4.1.0] A blacklist was added for IO and Normal mappings:
 +
* 0x50040000-0x50060000 (ARM, Interrupt Controller)
 +
* 0x6000F000 (Exception Vectors)
 +
* 0x6001DC00-0x6001E000 (IPATCH)
 +
* 0x7000E000 (RTC/PMC)
 +
* 0x70019000 (MC)
 +
* 0x7001C000 (MC0)
 +
* 0x7001D000 (MC1)
 +
 
 +
[5.0.0+] For IO, this blacklist was abandoned and instead two range checks were added. For Normal mappings it is still applied
 +
 
 +
== IoMemoryMap ==
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 8-31
 +
| BeginAddress
 +
|}
 +
 
 +
== MemoryRegionMap ==
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 11-16
 +
| RegionType0 (0 = NoMapping, 1 = KernelTraceBuffer, 2 = OnMemoryBootImage, 3 = DTB)
 +
|-
 +
| 17
 +
| RegionIsReadOnly0
 +
|-
 +
| 18-23
 +
| RegionType1 (0 = NoMapping, 1 = KernelTraceBuffer, 2 = OnMemoryBootImage, 3 = DTB)
 +
|-
 +
| 24
 +
| RegionIsReadOnly1
 +
|-
 +
| 25-30
 +
| RegionType2 (0 = NoMapping, 1 = KernelTraceBuffer, 2 = OnMemoryBootImage, 3 = DTB)
 +
|-
 +
| 31
 +
| RegionIsReadOnly2
 +
|}
 +
 
 +
== EnableInterrupts ==
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 12-21
 +
| InterruptNumber0
 +
|-
 +
| 22-31
 +
| InterruptNumber1
 +
|}
 +
 
 +
0x3FF means empty.
 +
 
 +
== MiscParams ==
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 14-16
 +
| ProgramType (0 = System, 1 = Application, 2 = Applet)
 +
|}
 +
 
 +
ProgramType is parsed by [[Process Manager services]]. Defaults to 0 if descriptor doesn't exist. Can only run 1 application at a time.
 +
 
 +
== KernelVersion ==
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 15-18
 +
| MinorVersion
 +
|-
 +
| 19-31
 +
| MajorVersion
 +
|}
 +
 
 +
This encodes the intended kernel version for the program.
 +
 
 +
The kernel requires that the intended version is >= the minimum supported version (3.0 for all released kernels), and <= the current version.
 +
 
 +
Kernel version is derived from/equivalent to SDK version:
 +
* Kernel Major = SDK Major + 4
 +
* Kernel Minor = SDK Minor
 +
 
 +
=== Versions ===
 +
{| class="wikitable" border="1"
 +
|-
 +
! Firmware || Kernel Version || Corresponding SDK Version
 +
|-
 +
| 1.0.0 || 5.0 || 1.0.0.0
 +
|-
 +
| 2.0.0 || 6.1 || 2.1.0.0
 +
|-
 +
| 3.0.0 || 7.4 || 3.4.0.0
 +
|-
 +
| 3.0.2 || 7.4 || 3.4.0.0
 +
|-
 +
| 5.0.0 || 9.3 || 5.3.0.0
 +
|-
 +
| 10.0.0 || 14.4 || 10.4.0.0
 +
|-
 +
| 11.0.0 || 15.4 || 11.4.0.0
 +
|-
 +
| 11.0.1 || 15.4 || 11.4.0.0
 +
|}
 +
 
 +
== HandleTableSize ==
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 16-25
 +
| HandleTableSize
 
|}
 
|}
   −
Only certain memory ranges are allowed to be mapped via these descriptors.
+
== MiscFlags ==
 +
{| class="wikitable" border="1"
 +
|-
 +
! Bits
 +
! Description
 +
|-
 +
| 17
 +
| EnableDebug
 +
|-
 +
| 18
 +
| ForceDebug
 +
|}
Retrieved from "https://switchbrew.org/wiki/Special:MobileDiff/2148...12206"

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