Difference between revisions of "SMC"

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Line 1: Line 1:
−
= Secure Monitor calls =
+
= Secure Monitor Calls =
 
The secure monitor provides two top level handlers of which each provides a range of sub handlers.
 
The secure monitor provides two top level handlers of which each provides a range of sub handlers.
  
−
Secure Monitor calls follow the ARM SMC calling convention up to a small change:
+
Secure Monitor calls follow the ARM SMC calling convention with a small change:
 
{| class=wikitable
 
{| class=wikitable
−
! Bit number || Bit mask || Description
+
! Bits || Description
 
|-
 
|-
−
| 31 || 0x80000000 || Set to 0 means Yielding Call; Set to 1 means Fast Call.
+
| 0-7 || Function Number
 
|-
 
|-
−
| 30 || 0x40000000 || Set to 0 means SMC32 convention; Set to 1 means SMC64.
+
| 8-15 || Argument Type
 
|-
 
|-
−
| 29-24 || 0x3F000000 || Service Call ranges.
+
| 16-23 || Reserved
 
|-
 
|-
−
| 23-16 || 0x00FF0000 || Must be zero.
+
| 24-29 || Call Range
 
|-
 
|-
−
| 15-8 || 0x0000FF00 || Argument type. This is different from the ARM SMC calling convention.
+
| 30 || Call Convention (0 = SMC32, 1 = SMC64)
 
|-
 
|-
−
| 7-0 || 0x000000FF || Function number within the range call type.
+
| 31 || Call Type (0 = Yielding Call, 1 = Fast Call)
 
|}
 
|}
  
Line 31: Line 31:
 
| 0xC3000401 || SetConfig
 
| 0xC3000401 || SetConfig
 
|-
 
|-
−
| 0xC3000002 || [[#GetConfig]] (same as in [[#FunctionId1]])
+
| 0xC3000002 || [[#GetConfig|GetConfig]] (same as in [[#FunctionId1]])
 
|-
 
|-
 
| 0xC3000003 || GetResult
 
| 0xC3000003 || GetResult
Line 37: Line 37:
 
| 0xC3000404 || GetResultData
 
| 0xC3000404 || GetResultData
 
|-
 
|-
−
| 0xC3000E05 || ExpMod
+
| 0xC3000E05 || ModularExponentiate
 
|-
 
|-
−
| 0xC3000006 || [[#GenerateRandomBytes]] (same as in [[#FunctionId1]])
+
| 0xC3000006 || [[#GenerateRandomBytes|GenerateRandomBytes]] (same as in [[#FunctionId1]])
 
|-
 
|-
−
| 0xC3000007 || [[#GenerateAesKek]]
+
| 0xC3000007 || [[#GenerateAesKek|GenerateAesKek]]
 
|-
 
|-
−
| 0xC3000008 || [[#LoadAesKey]]
+
| 0xC3000008 || [[#LoadAesKey|LoadAesKey]]
 
|-
 
|-
−
| 0xC3000009 || [[#ComputeAes]]
+
| 0xC3000009 || [[#ComputeAes|ComputeAes]]
 
|-
 
|-
−
| 0xC300000A || [[#GenerateSpecificAesKey]]
+
| 0xC300000A || [[#GenerateSpecificAesKey|GenerateSpecificAesKey]]
 
|-
 
|-
−
| 0xC300040B || [[#ComputeCmac]]
+
| 0xC300040B || [[#ComputeCmac|ComputeCmac]]
 
|-
 
|-
−
| [1.0.0-4.1.0] 0xC300100C || [[#ImportEsKey]]
+
| [1.0.0-4.1.0] 0xC300100C || [[#DecryptAndImportEsDeviceKey|DecryptAndImportEsDeviceKey]]
 
|-
 
|-
−
| [5.0.0+] 0xC300D60C || [[#ReEncryptRsaPrivateKey]]
+
| [5.0.0+] 0xC300D60C || [[#ReencryptDeviceUniqueData|ReencryptDeviceUniqueData]]
 
|-
 
|-
−
| [1.0.0-4.1.0] 0xC300100D || [[#DecryptRsaPrivateKey]]
+
| 0xC300100D || [[#DecryptDeviceUniqueData|DecryptDeviceUniqueData]]
 
|-
 
|-
−
| [5.0.0+] 0xC300100D || [[#DecryptOrImportRsaPrivateKey]]
+
| [1.0.0-4.1.0] 0xC300100E || [[#DecryptAndImportLotusKey|DecryptAndImportLotusKey]]
 
|-
 
|-
−
| [1.0.0-4.1.0] 0xC300100E || [[#ImportLotusKey]]
+
| 0xC300060F || [[#ModularExponentiateByStorageKey|ModularExponentiateByStorageKey]]
 
|-
 
|-
−
| 0xC300060F || [[#StorageExpMod]]
+
| 0xC3000610 || [[#PrepareEsDeviceUniqueKey|PrepareEsDeviceUniqueKey]]
 
|-
 
|-
−
| 0xC3000610 || [[#UnwrapTitleKey]]
+
| 0xC3000011 || [[#LoadPreparedAesKey|LoadPreparedAesKey]]
 
|-
 
|-
−
| 0xC3000011 || [[#LoadTitleKey]]
+
| 0xC3000012 || [2.0.0+] [[#PrepareEsCommonKey|PrepareEsCommonKey]]
−
|-
 
−
| 0xC3000012 || [2.0.0+] [[#UnwrapCommonTitleKey]]
 
 
|}
 
|}
  
Line 79: Line 77:
 
** This means: Plaintext kek keys never leave TrustZone.
 
** This means: Plaintext kek keys never leave TrustZone.
 
** Further, this means: Actual AES/RSA keys never leave TrustZone.
 
** Further, this means: Actual AES/RSA keys never leave TrustZone.
 +
 +
=== GenerateRandomBytes ===
 +
Takes an u64 '''Size'''. Returns [[#Result]] and '''RandomBytes'''.
 +
 +
'''Size''' is limited to 0x38 (for fitting in return registers).
  
 
=== GenerateAesKek ===
 
=== GenerateAesKek ===
Line 101: Line 104:
 
Calculates CMAC over input data.
 
Calculates CMAC over input data.
  
−
=== ImportEsKey ===
+
=== DecryptAndImportEsDeviceKey ===
 
Takes a session kek created with [[#GenerateAesKek]], a wrapped AES key, and a wrapped RSA private key.
 
Takes a session kek created with [[#GenerateAesKek]], a wrapped AES key, and a wrapped RSA private key.
  
 
The session kek must have been created with [[#CryptoUsecase|CryptoUsecase TitleKey]].
 
The session kek must have been created with [[#CryptoUsecase|CryptoUsecase TitleKey]].
  
−
[5.0.0] This function was removed and replaced with [[#ReEncryptRsaPrivateKey]].
+
[5.0.0] This function was removed and replaced with [[#ReencryptDeviceUniqueData]].
  
−
=== ReEncryptRsaPrivateKey ===
+
=== ReencryptDeviceUniqueData ===
 
Takes in two session keks created with [[#GenerateAesKek]], two wrapped AES keys, an enum member, and a wrapped RSA private key.
 
Takes in two session keks created with [[#GenerateAesKek]], two wrapped AES keys, an enum member, and a wrapped RSA private key.
  
 
Decrypts and validates the wrapped RSA private key with the first kek/wrapped key, and re-encrypts it with the second if valid.
 
Decrypts and validates the wrapped RSA private key with the first kek/wrapped key, and re-encrypts it with the second if valid.
  
−
The re-encrypted key is then passed to the user, for use with [[#DecryptOrImportRsaPrivateKey]].
+
The re-encrypted key is then passed to the user, for use with [[#DecryptDeviceUniqueData]].
  
−
=== DecryptRsaPrivateKey ===
+
=== DecryptDeviceUniqueData ===
 
Takes a session kek created with [[#GenerateAesKek]], a wrapped AES key, an enum member, and a wrapped RSA private key.
 
Takes a session kek created with [[#GenerateAesKek]], a wrapped AES key, an enum member, and a wrapped RSA private key.
  
Line 122: Line 125:
 
[4.0.0+] The SMC handler when certain conditions pass and FunctionId0==0xC300100D now returns error 0x6 instead of calling the handler funcptr.
 
[4.0.0+] The SMC handler when certain conditions pass and FunctionId0==0xC300100D now returns error 0x6 instead of calling the handler funcptr.
  
−
[5.0.0+] This function was replaced by [[#DecryptOrImportRsaPrivateKey]].
+
[5.0.0+] This function now takes an additional input [[#DecryptOrImportMode]]. This extends the original functionality to enable importing private keys into the security engine instead of decrypting them.
  
−
=== DecryptOrImportRsaPrivateKey ===
+
=== DecryptAndImportLotusKey ===
−
This function replaced [[#DecryptRsaPrivateKey]] in [[5.0.0]], adding an additional [[#DecryptOrImportMode]].
 
−
 
 
−
This SMC extends DecryptRsaPrivateKey's original functionality to enable importing private keys into the security engine instead of decrypting them, when certain enum members are passed.
 
−
 
 
−
=== ImportLotusKey ===
 
 
Takes a session kek created with [[#GenerateAesKek]], and a wrapped RSA key.
 
Takes a session kek created with [[#GenerateAesKek]], and a wrapped RSA key.
  
Line 136: Line 134:
 
[5.0.0] This function was removed.
 
[5.0.0] This function was removed.
  
−
=== SecureExpMod ===
+
=== ModularExponentiateByStorageKey ===
−
Performs an ExpMod operation using an exponent previously loaded with the [[#ImportLotusKey]] command.
+
Performs an ExpMod operation using an exponent previously loaded with the [[#DecryptAndImportLotusKey]] command.
  
−
[5.0.0+] This now uses any exponent previously loaded with [[#DecryptOrImportRsaPrivateKey]] and takes an [[#SecureExpModMode]].
+
[5.0.0+] This now uses any exponent previously loaded with [[#DecryptDeviceUniqueData]] and takes an [[#SecureExpModMode]].
  
−
=== UnwrapTitleKey ===
+
=== PrepareEsDeviceUniqueKey ===
 
Takes an Rsa-Oaep-wrapped TitleKey, an RSA Public Key, and a label hash.
 
Takes an Rsa-Oaep-wrapped TitleKey, an RSA Public Key, and a label hash.
  
−
Performs an ExpMod operation using an exponent previously loaded with the [[#ImportEsKey]] command, and then validates/extracts a Titlekey from the resulting message.
+
Performs an ExpMod operation using an exponent previously loaded with the [[#DecryptAndImportEsDeviceKey]] command, and then validates/extracts a Titlekey from the resulting message.
  
 
Returns a session-unique AES key especially for use in [[#LoadTitleKey]].
 
Returns a session-unique AES key especially for use in [[#LoadTitleKey]].
  
−
[5.0.0+] This now uses any exponent previously loaded with [[#DecryptOrImportRsaPrivateKey]].
+
[5.0.0+] This now uses any exponent previously loaded with [[#DecryptDeviceUniqueData]].
  
−
=== LoadTitleKey ===
+
=== LoadPreparedAesKey ===
−
Takes a session-unique AES key from [[#UnwrapCommonTitleKey]] or [[#UnwrapTitleKey]].
+
Takes a session-unique AES key from [[#PrepareEsCommonKey]] or [[#PrepareEsDeviceUniqueKey]].
  
−
=== UnwrapCommonTitleKey ===
+
=== PrepareEsCommonKey ===
−
Takes an AES-wrapped TitleKey and returns a sealed AES key.
+
Takes an AES-wrapped common TitleKey and returns a sealed AES key.
  
 
== FunctionId1 ==
 
== FunctionId1 ==
Line 162: Line 160:
 
! Value || Name
 
! Value || Name
 
|-
 
|-
−
| 0xC4000001 || [[#CpuSuspend]]
+
| 0xC4000001 || [[#SuspendCpu|SuspendCpu]]
 
|-
 
|-
−
| 0x84000002 || [[#CpuOff]]
+
| 0x84000002 || [[#PowerOffCpu|PowerOffCpu]]
 
|-
 
|-
−
| 0xC4000003 || [[#CpuOn]]
+
| 0xC4000003 || [[#PowerOnCpu|PowerOnCpu]]
 
|-
 
|-
−
| 0xC3000004 || [[#GetConfig]] (same as in [[#FunctionId0]])
+
| 0xC3000004 || [[#GetConfig|GetConfig]] (same as in [[#FunctionId0]])
 
|-
 
|-
−
| 0xC3000005 || [[#GenerateRandomBytes]] (same as in [[#FunctionId0]])
+
| 0xC3000005 || [[#GenerateRandomBytes|GenerateRandomBytesNonBlocking]]
 
|-
 
|-
−
| 0xC3000006 || [[#Panic]]
+
| 0xC3000006 || [[#ShowError|ShowError]]
 
|-
 
|-
−
| 0xC3000007 || [2.0.0+] [[#ConfigureCarveout]]
+
| 0xC3000007 || [2.0.0+] [[#SetKernelCarveoutRegion|SetKernelCarveoutRegion]]
 
|-
 
|-
−
| 0xC3000008 || [2.0.0+] [[#ReadWriteRegister]]
+
| 0xC3000008 || [2.0.0+] [[#ReadWriteRegister|ReadWriteRegister]]
 
|}
 
|}
  
−
=== CpuSuspend ===
+
=== SuspendCpu ===
−
Takes an u64 '''PowerState''', an u64 '''EntrypointAddr''' and an u64 '''ContextId'''. No output.
+
Takes an u64 '''PowerState''', an u64 '''EntrypointAddress''' and an u64 '''ContextId'''. No output.
  
 
Suspends the CPU (CPU0).
 
Suspends the CPU (CPU0).
Line 186: Line 184:
 
The kernel calls this SMC on shutdown with '''PowerState''' set to 0x0201001B (power level: 0x02==system; power type: 0x01==powerdown; ID: 0x1B).
 
The kernel calls this SMC on shutdown with '''PowerState''' set to 0x0201001B (power level: 0x02==system; power type: 0x01==powerdown; ID: 0x1B).
  
−
=== CpuOff ===
+
=== PowerOffCpu ===
 
No input/output.
 
No input/output.
  
 
Turns off the CPU (CPU1, CPU2 or CPU3).
 
Turns off the CPU (CPU1, CPU2 or CPU3).
  
−
=== CpuOn ===
+
=== PowerOnCpu ===
−
Takes an u64 '''TargetCpu''', an u64 '''EntrypointAddr''' and an u64 '''ContextId'''. Returns [[#Result]].
+
Takes an u64 '''TargetCpu''', an u64 '''EntrypointAddress''' and an u64 '''ContextId'''. Returns [[#Result]].
  
 
Turns on the CPU (CPU1, CPU2 or CPU3).
 
Turns on the CPU (CPU1, CPU2 or CPU3).
  
 
=== GetConfig ===
 
=== GetConfig ===
−
Takes a [[#ConfigItem]]. Returns [[#Result]] and a '''ConfigVal'''.
+
Takes a [[#ConfigItem]]. Returns [[#Result]] and a '''ConfigValue'''.
  
 
==== ConfigItem ====
 
==== ConfigItem ====
Line 214: Line 212:
 
| 5 || [[#HardwareType]]
 
| 5 || [[#HardwareType]]
 
|-
 
|-
−
| 6 || [[#IsRetail]]
+
| 6 || [[#HardwareState]]
 
|-
 
|-
 
| 7 || [[#IsRecoveryBoot]]
 
| 7 || [[#IsRecoveryBoot]]
Line 224: Line 222:
 
| 10 || [[#MemoryMode]]
 
| 10 || [[#MemoryMode]]
 
|-
 
|-
−
| 11 || [[#IsDebugMode]]
+
| 11 || [[#IsDevelopmentFunctionEnabled]]
 
|-
 
|-
 
| 12 || [[#KernelConfiguration]]
 
| 12 || [[#KernelConfiguration]]
Line 230: Line 228:
 
| 13 || [[#IsChargerHiZModeEnabled]]
 
| 13 || [[#IsChargerHiZModeEnabled]]
 
|-
 
|-
−
| 14 || [4.0.0+] [[#IsQuest]]
+
| 14 || [4.0.0+] [[#QuestState]]
 
|-
 
|-
 
| 15 || [5.0.0+] [[#RegulatorType]]
 
| 15 || [5.0.0+] [[#RegulatorType]]
Line 258: Line 256:
 
|-
 
|-
 
| 3
 
| 3
−
| Reserved
+
| EristaCopperSamsung4gb
 
|-
 
|-
 
| 4
 
| 4
Line 264: Line 262:
 
|-
 
|-
 
| 5
 
| 5
−
| [4.0.0+] Reserved
+
| [4.0.0+] EristaCopperHynix4gb
 
|-
 
|-
 
| 6
 
| 6
−
| [4.0.0+] Reserved
+
| [4.0.0+] EristaCopperMicron4gb
 
|-
 
|-
 
| 7
 
| 7
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| 22
 
| 22
 
| [9.0.0+] MarikoIowaSamsung1y4gbA
 
| [9.0.0+] MarikoIowaSamsung1y4gbA
 +
|-
 +
| 23
 +
| [10.0.0+] MarikoUnkSamsung1y8gbX
 +
|-
 +
| 24
 +
| [10.0.0+] MarikoUnkSamsung1y4gbX
 
|}
 
|}
  
Line 323: Line 327:
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
 
|-
 
|-
−
! SoC
+
! SocType
 
! Platform
 
! Platform
 
! DramId
 
! DramId
 
! Revision
 
! Revision
−
! DVFS version
+
! DVFS
 
|-
 
|-
−
| T210
+
| Erista
 
| jetson-tx1
 
| jetson-tx1
 
| N/A
 
| N/A
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  11_1600000_02_V9.8.3_V1.6
 
  11_1600000_02_V9.8.3_V1.6
 
|-
 
|-
−
| T210
+
| Erista
 
| nx-abcb
 
| nx-abcb
 
| EristaIcosaSamsung4gb
 
| EristaIcosaSamsung4gb
Line 361: Line 365:
 
  10_1600000_NoCfgVersion_V9.8.7_V1.6
 
  10_1600000_NoCfgVersion_V9.8.7_V1.6
 
|-
 
|-
−
| T210
+
| Erista
 
| nx-abcb
 
| nx-abcb
 
| EristaIcosaMicron4gb
 
| EristaIcosaMicron4gb
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  10_1600000_NoCfgVersion_V9.8.4_V1.6
 
  10_1600000_NoCfgVersion_V9.8.4_V1.6
 
|-
 
|-
−
| T210
+
| Erista
 
| nx-abcb
 
| nx-abcb
 
| EristaIcosaHynix4gb
 
| EristaIcosaHynix4gb
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  10_1600000_NoCfgVersion_V9.8.4_V1.6
 
  10_1600000_NoCfgVersion_V9.8.4_V1.6
 
|-
 
|-
−
| T210
+
| Erista
 
| nx-abca2
 
| nx-abca2
 
| EristaIcosaSamsung4gb, EristaIcosaMicron4gb
 
| EristaIcosaSamsung4gb, EristaIcosaMicron4gb
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  10_1600000_NoCfgVersion_V9.8.7_V1.6
 
  10_1600000_NoCfgVersion_V9.8.7_V1.6
 
|-
 
|-
−
| T210
+
| Erista
 
| nx-abca2
 
| nx-abca2
 
| EristaIcosaHynix4gb
 
| EristaIcosaHynix4gb
Line 425: Line 429:
 
  10_1600000_NoCfgVersion_V9.8.7_V1.6
 
  10_1600000_NoCfgVersion_V9.8.7_V1.6
 
|-
 
|-
−
| T210
+
| Erista
 
| nx-abca2
 
| nx-abca2
 
| EristaIcosaSamsung6gb
 
| EristaIcosaSamsung6gb
Line 441: Line 445:
 
  10_1600000_NoCfgVersion_V9.8.7_V1.6
 
  10_1600000_NoCfgVersion_V9.8.7_V1.6
 
|-
 
|-
−
| T214
+
| Mariko
−
| nx-abca2, nx-abcb, nx-abcc
+
| nx-abca2, nx-abcb, nx-abcc, nx-abcd
 
| MarikoIowax1x2Samsung4gb
 
| MarikoIowax1x2Samsung4gb
 
| 0x03
 
| 0x03
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  01_1600000_NoCfgVersion_V0.3.1_V2.0
 
  01_1600000_NoCfgVersion_V0.3.1_V2.0
 
|-
 
|-
−
| T214
+
| Mariko
−
| nx-abca2, nx-abcb, nx-abcc
+
| nx-abca2, nx-abcb, nx-abcc, nx-abcd
 
| MarikoIowaSamsung4gb, MarikoHoagSamsung4gb
 
| MarikoIowaSamsung4gb, MarikoHoagSamsung4gb
 
| 0x03
 
| 0x03
Line 459: Line 463:
 
  01_1600000_NoCfgVersion_V0.3.1_V2.0
 
  01_1600000_NoCfgVersion_V0.3.1_V2.0
 
|-
 
|-
−
| T214
+
| Mariko
−
| nx-abca2, nx-abcb, nx-abcc
+
| nx-abca2, nx-abcb, nx-abcc, nx-abcd
 
| MarikoIowaSamsung8gb, MarikoHoagSamsung8gb
 
| MarikoIowaSamsung8gb, MarikoHoagSamsung8gb
 
| 0x03
 
| 0x03
Line 468: Line 472:
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
|-
 
|-
−
| T214
+
| Mariko
−
| nx-abca2, nx-abcb, nx-abcc
+
| nx-abca2, nx-abcb, nx-abcc, nx-abcd
 
| MarikoIowaHynix4gb, MarikoHoagHynix4gb
 
| MarikoIowaHynix4gb, MarikoHoagHynix4gb
 
| 0x03
 
| 0x03
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  01_1600000_NoCfgVersion_V0.3.1_V2.0
 
  01_1600000_NoCfgVersion_V0.3.1_V2.0
 
|-
 
|-
−
| T214
+
| Mariko
−
| nx-abca2, nx-abcb, nx-abcc
+
| nx-abca2, nx-abcb, nx-abcc, nx-abcd
 
| MarikoIowaMicron4gb, MarikoHoagMicron4gb
 
| MarikoIowaMicron4gb, MarikoHoagMicron4gb
 
| 0x03
 
| 0x03
Line 486: Line 490:
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
|-
 
|-
−
| T214
+
| Mariko
−
| nx-abca2, nx-abcb, nx-abcc
+
| nx-abca2, nx-abcb, nx-abcc, nx-abcd
 
| MarikoIowaSamsung4gbY
 
| MarikoIowaSamsung4gbY
 
| 0x03
 
| 0x03
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  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
|-
 
|-
−
| T214
+
| Mariko
−
| nx-abca2, nx-abcb, nx-abcc
+
| nx-abca2, nx-abcb, nx-abcc, nx-abcd
 
| MarikoIowaSamsung1y4gbX
 
| MarikoIowaSamsung1y4gbX
 
| 0x03
 
| 0x03
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  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
|-
 
|-
−
| T214
+
| Mariko
−
| nx-abca2, nx-abcb, nx-abcc
+
| nx-abca2, nx-abcb, nx-abcc, nx-abcd
 
| MarikoIowaSamsung1y8gbX
 
| MarikoIowaSamsung1y8gbX
 
| 0x03
 
| 0x03
Line 513: Line 517:
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
|-
 
|-
−
| T214
+
| Mariko
−
| nx-abca2, nx-abcb, nx-abcc
+
| nx-abca2, nx-abcb, nx-abcc, nx-abcd
 
| MarikoHoagSamsung1y4gbX
 
| MarikoHoagSamsung1y4gbX
 
| 0x03
 
| 0x03
Line 522: Line 526:
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
|-
 
|-
−
| T214
+
| Mariko
−
| nx-abca2, nx-abcb, nx-abcc
+
| nx-abca2, nx-abcb, nx-abcc, nx-abcd
 
| MarikoIowaSamsung1y4gbY
 
| MarikoIowaSamsung1y4gbY
 
| 0x03
 
| 0x03
Line 531: Line 535:
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
|-
 
|-
−
| T214
+
| Mariko
−
| nx-abca2, nx-abcb, nx-abcc
+
| nx-abca2, nx-abcb, nx-abcc, nx-abcd
 
| MarikoIowaSamsung1y8gbY
 
| MarikoIowaSamsung1y8gbY
 
| 0x03
 
| 0x03
Line 540: Line 544:
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
  01_1600000_NoCfgVersion_V0.4.2_V2.0
 
|-
 
|-
−
| T214
+
| Mariko
−
| nx-abca2, nx-abcb, nx-abcc
+
| nx-abca2, nx-abcb, nx-abcc, nx-abcd
 
| MarikoIowaSamsung1y4gbA
 
| MarikoIowaSamsung1y4gbA
 
| 0x03
 
| 0x03
Line 550: Line 554:
 
|}
 
|}
  
−
'''nx-abca2''' ('''Icosa''' in '''Erista''', '''Iowa''' in '''Mariko''') hardware types are variations of the retail and EDEV form factors.
+
'''nx-abca2''' ('''Icosa''' in '''Erista''', '''Iowa''' in '''Mariko''') hardware types are variations of the retail, EDEV and SDEV form factors.
  
−
'''nx-abcb''' ('''Copper''') is the SDEV unit. Among other differences, this has extra hardware to support HDMI output.
+
'''nx-abcb''' ('''Copper''' in '''Erista''', '''Calcio''' in '''Mariko''') is a prototype unit. Among other differences, this has extra hardware to support HDMI output.
  
−
[8.0.0+] '''nx-abcc''' ('''Hoag''') was added for '''Mariko'''.
+
[8.0.0+] '''nx-abcc''' ('''Hoag''') was added for the Lite retail and HDEV form factors.
 +
 
 +
[10.0.0+] '''nx-abcd''' was added.
  
 
'''Erista''' memory is LPDDR4, while '''Mariko''' memory is LPDDR4X.
 
'''Erista''' memory is LPDDR4, while '''Mariko''' memory is LPDDR4X.
Line 562: Line 568:
  
 
===== FuseVersion =====
 
===== FuseVersion =====
−
The current [[Package2#Versions|Package1 Maxver Constant]] - 1.
+
The current [[Package2#Versions|bootloader maximum version]] - 1.
  
 
===== HardwareType =====
 
===== HardwareType =====
−
[1.0.0+] This item is obtained by checking bits 8 and 2 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]]. It can be:
+
{| class=wikitable
−
* 0 ('''Icosa'''; Erista retail and EDEV), if development flag (bit 8) is '''Retail''' and production flag (bit 2) is '''Production'''.
+
! Value || Description
−
* 1 ('''Copper'''; Erista SDEV), if development flag (bit 8) is '''Development''' and production flag (bit 2) is '''Prototype'''.
+
|-
−
* 3 (Invalid).
+
| 0 || Icosa
 +
|-
 +
| 1 || Copper
 +
|-
 +
| 2 || [8.0.0+] Hoag ([1.0.0-7.0.1] Invalid)
 +
|-
 +
| 3 || [4.0.0+] Iowa
 +
|-
 +
| 4 || [8.0.0+] Calcio
 +
|-
 +
| 5 || [10.0.0+] Unknown
 +
|-
 +
| 15 || Invalid
 +
|}
  
−
Value 2 is reserved and considered invalid.
+
[1.0.0+] This item is obtained by checking bits 8 and 2 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]].
  
−
[4.0.0+] This item is obtained by checking bits 8, 2 and 16-19 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]]. It can be:
+
[4.0.0+] This item is obtained by checking bits 8, 2 and 16-19 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]].
−
* 0 ('''Icosa'''; Erista retail and EDEV), if development flag (bit 8) is '''Retail''' and production flag (bit 2) is '''Production'''.
 
−
* 1 ('''Copper'''; Erista SDEV), if development flag (bit 8) is '''Development''' and production flag (bit 2) is '''Prototype'''.
 
−
* 3 ('''Iowa'''; Mariko retail and EDEV), if new hardware type (bits 16-19) is '''Iowa'''.
 
−
* 4 (Invalid).
 
  
−
Value 2 is reserved and considered invalid.
+
[7.0.0+] This item can now only be 0 (Icosa) or 15 (Invalid) in Erista units.
  
−
[7.0.0+] This item can be obtained by checking bits 8, 2 and 16-19 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]], but is now only 0 (Icosa) or 0xF (Invalid) in retail units.
+
Hardware is '''Icosa''' (Erista retail, EDEV and SDEV) if [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareType1]] (bit 2) is 1 and [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareType2]] (bit 8) is 0.
  
−
[8.0.0+] This item can be obtained by checking bits 8, 2 and 16-19 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]]. It can be:
+
Hardware is '''Copper''' (Erista prototype) if [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareType1]] (bit 2) is 0 and [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareType2]] (bit 8) is 1.
−
* 0 ('''Icosa'''; Erista retail and EDEV), if development flag (bit 8) is '''Retail''' and production flag (bit 2) is '''Production'''.
 
−
* 1 ('''Copper'''; Erista SDEV), if development flag (bit 8) is '''Development''' and production flag (bit 2) is '''Prototype'''.
 
−
* 2 ('''Hoag'''; Mariko Lite retail and HDEV), if new hardware type (bits 16-19) is '''Hoag'''.
 
−
* 3 ('''Iowa'''; Mariko retail and EDEV), if new hardware type (bits 16-19) is '''Iowa'''.
 
−
* 4 ('''Calcio''').
 
−
* 5 (Invalid).
 
  
−
It is still only 0 (Icosa) or 0xF (Invalid) in retail units.
+
[4.0.0+] Hardware is '''Iowa''' (Mariko retail, EDEV and SDEV) if [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareType3]] (bits 16-19) is 1.
  
−
===== IsRetail =====
+
[8.0.0+] Hardware is '''Hoag''' (Mariko Lite retail and HDEV) if [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareType3]] (bits 16-19) is 2.
−
This item is obtained by checking bits 9 and 0-1 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]]. It can be 0 (Debug), 1 (Retail) or 2 (Invalid).
+
 
 +
[8.0.0+] Hardware is '''Calcio''' (Mariko prototype) if [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareType1]] (bit 2) is 0 and [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareType2]] (bit 8) is 1.
 +
 
 +
[10.0.0+] Hardware is '''Unknown''' if [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareType3]] (bits 16-19) is 4.
 +
 
 +
===== HardwareState =====
 +
{| class=wikitable
 +
! Value || Description
 +
|-
 +
| 0 || Development
 +
|-
 +
| 1 || Production
 +
|-
 +
| 2 || Invalid
 +
|}
 +
 
 +
This item is obtained by checking bits 9 and 0-1 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]].
 +
 
 +
Hardware is '''Development''' if [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareState1]] (bits 0-1) is 3 and [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareState2]] (bit 9) is 0.
 +
 
 +
Hardware is '''Production''' if [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareState1]] (bits 0-1) is 0 and [[Fuse_registers#FUSE_RESERVED_ODM4|HardwareState2]] (bit 9) is 1.
  
 
===== IsRecoveryBoot =====
 
===== IsRecoveryBoot =====
Line 665: Line 694:
 
|}
 
|}
  
−
===== IsDebugMode =====
+
===== IsDevelopmentFunctionEnabled =====
−
Kernel uses this to determine behavior of svcBreak positive arguments. It will break instead of just force-exiting the process which is what happens on retail.
+
Kernel uses this to determine behavior of [[SVC#svcBreak|svcBreak]] positive arguments. It will break instead of just force-exiting the process which is what happens on retail.
  
 
[2.0.0+] This is also used with certain debug [[SVC|SVCs]].
 
[2.0.0+] This is also used with certain debug [[SVC|SVCs]].
Line 699: Line 728:
 
Kernel reads this when setting up memory-related code.
 
Kernel reads this when setting up memory-related code.
  
−
EnableNonZeroFillMemory is a boolean determining whether kernel should it will memset various allocated memory-regions with 0x58, 0x59, 0x5A ('X', 'Y', 'Z') instead of zero. This allows Nintendo devs to find uninitialized memory bugs.
+
'''EnableNonZeroFillMemory''' is a boolean determining whether kernel should it will memset various allocated memory-regions with 0x58, 0x59, 0x5A ('X', 'Y', 'Z') instead of zero. This allows Nintendo devs to find uninitialized memory bugs.
  
−
EnableUserExceptionHandler is a boolean determining whether kernel should forcefully enable usermode exception handlers (when false, only certain aborts (((1LL << (esr >> 26)) & 0x1115804400224001) == 0, typically data/prefetch aborts) that occur when the faulting address is in a readable region with MemoryType_CodeStatic will trigger usermode exception handlers).
+
'''EnableUserExceptionHandler''' is a boolean determining whether kernel should forcefully enable usermode exception handlers (when false, only certain aborts (((1LL << (esr >> 26)) & 0x1115804400224001) == 0, typically data/prefetch aborts) that occur when the faulting address is in a readable region with MemoryType_CodeStatic will trigger usermode exception handlers).
  
−
PerformanceMonitoringUnit is a boolean determining whether kernel should enable usermode access to the Performance Monitors (whether PMUSERENR_EL0 should be 1 or 0).
+
'''PerformanceMonitoringUnit''' is a boolean determining whether kernel should enable usermode access to the Performance Monitors (whether PMUSERENR_EL0 should be 1 or 0).
  
−
EnableApplicationExtraThread is a boolean determining whether the kernel should increase the KThread slabheap capacity by 160. This also increases object capacities that are calculated based on number of threads.
+
'''EnableApplicationExtraThread''' is a boolean determining whether the kernel should increase the KThread slabheap capacity by 160. This also increases object capacities that are calculated based on number of threads.
  
−
CallShowErrorOnPanic is a boolean determining whether kernel should call smcPanic on error instead of infinite-looping.
+
'''CallShowErrorOnPanic''' is a boolean determining whether kernel should call smcPanic on error instead of infinite-looping.
  
−
MemorySize determines how much memory is available. 00/03 = 4 GB, 01 = 6 GB, 02 = 8 GB.
+
'''MemorySize''' determines how much memory is available. 00/03 = 4 GB, 01 = 6 GB, 02 = 8 GB.
  
 
===== IsChargerHiZModeEnabled =====
 
===== IsChargerHiZModeEnabled =====
 
This tells if the TI Charger (bq24192) is active.
 
This tells if the TI Charger (bq24192) is active.
  
−
===== IsQuest =====
+
===== QuestState =====
 +
{| class=wikitable
 +
! Value || Description
 +
|-
 +
| 0 || Disabled
 +
|-
 +
| 1 || Enabled
 +
|}
 +
 
 
This item is bit 10 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]].
 
This item is bit 10 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]].
  
Line 723: Line 760:
 
|-
 
|-
 
! Value
 
! Value
−
! SoC
+
! SocType
 
! GPU
 
! GPU
 
! Power Blocks
 
! Power Blocks
 
|-
 
|-
 
| 0
 
| 0
−
| T210
+
| Erista
 
| GM20B (0x12B)
 
| GM20B (0x12B)
 
| max77620_sd0, max77621_cpu and max77621_gpu
 
| max77620_sd0, max77621_cpu and max77621_gpu
 
|-
 
|-
 
| 1
 
| 1
−
| T214
+
| Mariko
 
| GM20B_B (0x12E)
 
| GM20B_B (0x12E)
 
| max77620_sd0, max77812_cpu and max77812_gpu
 
| max77620_sd0, max77812_cpu and max77812_gpu
 
|-
 
|-
 
| 2
 
| 2
−
| T214
+
| Mariko
 
| GM20B_B (0x12E)
 
| GM20B_B (0x12E)
 
| max77620_sd0, max77812_cpu and max77812_gpu
 
| max77620_sd0, max77812_cpu and max77812_gpu
 
|}
 
|}
−
 
−
This item is currently hardcoded to 0.
 
  
 
[5.0.0+] [[PCV_services|PCV]] uses this value in combination with [[#HardwareType|HardwareType]] to configure power blocks and memory tables for different hardware.
 
[5.0.0+] [[PCV_services|PCV]] uses this value in combination with [[#HardwareType|HardwareType]] to configure power blocks and memory tables for different hardware.
Line 755: Line 790:
 
This is a SHA-256 hash calculated over the [[Package2|package2]] image. Since the hash calculation is an optional step in pkg2ldr, this item is only valid in recovery mode. Otherwise, an error is returned instead.
 
This is a SHA-256 hash calculated over the [[Package2|package2]] image. Since the hash calculation is an optional step in pkg2ldr, this item is only valid in recovery mode. Otherwise, an error is returned instead.
  
−
=== GenerateRandomBytes ===
+
=== ShowError ===
−
Takes an u64 '''RndSize'''. Returns [[#Result]] and '''RndData'''.
+
Takes an u32 '''Color''' and issues a system panic.
  
−
The kernel limits '''RndSize''' to 0x38 (for fitting in return registers).
+
The kernel always calls this with '''Color''' set to 0xF00.
  
−
=== Panic ===
+
=== SetKernelCarveoutRegion ===
−
Takes an u32 '''PanicColor''' and issues a system panic.
+
Takes an u64 '''Index''', an u64 '''Address''' and an u64 '''Size'''. Returns [[#Result]].
  
−
The kernel always calls this with '''PanicColor''' set to 0xF00.
+
If '''Index''' is 0, '''Address''' and '''Size''' are used to configure '''MC_SECURITY_CARVEOUT4'''.
 +
If '''Index''' is 1, '''Address''' and '''Size''' are used to configure '''MC_SECURITY_CARVEOUT5'''.
 +
Any other '''Index''' values are invalid.
  
−
=== ConfigureCarveout ===
+
The kernel calls this with '''Index''' set to 0, '''Address''' set to 0x80060000 and '''Size''' set to a dynamically calculated size which covers all the kernel and built-in sysmodules' DRAM regions.
−
Takes an u64 '''CarveoutIdx''', an u64 '''CarveoutAddr''' and an u64 '''CarveoutSize'''. Returns [[#Result]].
 
−
 
 
−
If '''CarveoutIdx''' is 0, '''CarveoutAddr''' and '''CarveoutSize''' are used to configure '''MC_SECURITY_CARVEOUT4'''.
 
−
If '''CarveoutIdx''' is 1, '''CarveoutAddr''' and '''CarveoutSize''' are used to configure '''MC_SECURITY_CARVEOUT5'''.
 
−
Any other '''CarveoutIdx''' values are invalid.
 
−
 
 
−
The kernel calls this with '''CarveoutIdx''' set to 0, '''CarveoutAddr''' set to 0x80060000 and '''CarveoutSize''' set to a dynamically calculated size which covers all the kernel and built-in sysmodules' DRAM regions.
 
  
 
=== ReadWriteRegister ===
 
=== ReadWriteRegister ===
−
Takes an u64 '''RegAddr''', an u32 '''RwMask''' and an u32 '''InValue'''. Returns [[#Result]] and an u32 '''OutValue'''.
+
Takes an u64 '''Register''', an u32 '''Mask''' and an u32 '''InValue'''. Returns [[#Result]] and an u32 '''OutValue'''.
  
 
Relays [[SVC#svcReadWriteRegister|svcReadWriteRegister]] to the Secure Monitor.
 
Relays [[SVC#svcReadWriteRegister|svcReadWriteRegister]] to the Secure Monitor.
Line 787: Line 817:
 
| 1 || RsaPrivate
 
| 1 || RsaPrivate
 
|-
 
|-
−
| 2 || RsaSecureExpMod
+
| 2 || SecureExpMod
 +
|-
 +
| 3 || RsaOaep
 +
|-
 +
| 4 || [5.0.0+] RsaImport
 
|-
 
|-
−
| 3 || TitleKey
+
| 5 || [5.0.0+]
 +
|-
 +
| 6 || [5.0.0+]
 
|}
 
|}
−
 
−
TitleKey represents a RSA wrapped AES key.
 
  
 
= CipherMode =
 
= CipherMode =
Line 829: Line 863:
 
|-
 
|-
 
| 2 || Drm
 
| 2 || Drm
 +
|}
 +
 +
= EsKeyType =
 +
{| class=wikitable
 +
! Value || Name
 +
|-
 +
| 0 || TitleKey
 +
|-
 +
| 1 || ElicenseKey
 
|}
 
|}
  
Line 847: Line 890:
 
| 5 || Invalid async operation
 
| 5 || Invalid async operation
 
|-
 
|-
−
| [8.0.0+] 6 || Not permitted
+
| 6 || [8.0.0+] Not permitted
 
|}
 
|}

Latest revision as of 18:51, 15 May 2020

Secure Monitor Calls

The secure monitor provides two top level handlers of which each provides a range of sub handlers.

Secure Monitor calls follow the ARM SMC calling convention with a small change:

Bits Description
0-7 Function Number
8-15 Argument Type
16-23 Reserved
24-29 Call Range
30 Call Convention (0 = SMC32, 1 = SMC64)
31 Call Type (0 = Yielding Call, 1 = Fast Call)

If bit n is set in the argument type then parameter Xn is treated as a pointer and the kernel will setup address translation for it in svcCallSecureMonitor.

SMC arguments are passed using registers X0-X7 with X0 always sending the call sub-id and returning the result of the call.

FunctionId0

Functions exposed to user-mode processes using svcCallSecureMonitor. SMCs should be called from CPUID 3 (where SPL runs).

Value Name
0xC3000401 SetConfig
0xC3000002 GetConfig (same as in #FunctionId1)
0xC3000003 GetResult
0xC3000404 GetResultData
0xC3000E05 ModularExponentiate
0xC3000006 GenerateRandomBytes (same as in #FunctionId1)
0xC3000007 GenerateAesKek
0xC3000008 LoadAesKey
0xC3000009 ComputeAes
0xC300000A GenerateSpecificAesKey
0xC300040B ComputeCmac
[1.0.0-4.1.0] 0xC300100C DecryptAndImportEsDeviceKey
[5.0.0+] 0xC300D60C ReencryptDeviceUniqueData
0xC300100D DecryptDeviceUniqueData
[1.0.0-4.1.0] 0xC300100E DecryptAndImportLotusKey
0xC300060F ModularExponentiateByStorageKey
0xC3000610 PrepareEsDeviceUniqueKey
0xC3000011 LoadPreparedAesKey
0xC3000012 [2.0.0+] PrepareEsCommonKey

The overall concept here is the following:

  • All key material (AES and RSA) is stored in userspace, but it's encrypted with random AES kek's ("key encryption keys").
  • Each kek is generated as a function of an access key (picked at random).
  • The kek is generated differently depending on the #CryptoUsecase the key is used for.
    • This means: Each key is "locked" to the #CryptoUsecase it was designated for.
    • You can use a key for a different usecase, but you will only get garbage output.
  • After the kek has been generated, it is wrapped with a session-specific key and given back to userspace.
    • This means: Plaintext kek keys never leave TrustZone.
    • Further, this means: Actual AES/RSA keys never leave TrustZone.

GenerateRandomBytes

Takes an u64 Size. Returns #Result and RandomBytes.

Size is limited to 0x38 (for fitting in return registers).

GenerateAesKek

Takes an "access key" as input, an #CryptoUsecase.

Returns a session-unique kek for said usecase.

LoadAesKey

Takes a session kek created with #GenerateAesKek, and a wrapped AES key.

The session kek must have been created with CryptoUsecase Aes.

ComputeAes

Encrypts/decrypts using AES (CTR and CBC). Takes an #CipherMode.

Key must be set prior using one of the #LoadAesKey or #GenerateSpecificAesKey commands.

GenerateSpecificAesKey

Takes a wrapped AES key and decrypts it using static data.

ComputeCmac

Calculates CMAC over input data.

DecryptAndImportEsDeviceKey

Takes a session kek created with #GenerateAesKek, a wrapped AES key, and a wrapped RSA private key.

The session kek must have been created with CryptoUsecase TitleKey.

[5.0.0] This function was removed and replaced with #ReencryptDeviceUniqueData.

ReencryptDeviceUniqueData

Takes in two session keks created with #GenerateAesKek, two wrapped AES keys, an enum member, and a wrapped RSA private key.

Decrypts and validates the wrapped RSA private key with the first kek/wrapped key, and re-encrypts it with the second if valid.

The re-encrypted key is then passed to the user, for use with #DecryptDeviceUniqueData.

DecryptDeviceUniqueData

Takes a session kek created with #GenerateAesKek, a wrapped AES key, an enum member, and a wrapped RSA private key.

The session kek must have been created with CryptoUsecase RsaPrivate.

[4.0.0+] The SMC handler when certain conditions pass and FunctionId0==0xC300100D now returns error 0x6 instead of calling the handler funcptr.

[5.0.0+] This function now takes an additional input #DecryptOrImportMode. This extends the original functionality to enable importing private keys into the security engine instead of decrypting them.

DecryptAndImportLotusKey

Takes a session kek created with #GenerateAesKek, and a wrapped RSA key.

The session kek must have been created with CryptoUsecase RsaSecureExpMod.

[5.0.0] This function was removed.

ModularExponentiateByStorageKey

Performs an ExpMod operation using an exponent previously loaded with the #DecryptAndImportLotusKey command.

[5.0.0+] This now uses any exponent previously loaded with #DecryptDeviceUniqueData and takes an #SecureExpModMode.

PrepareEsDeviceUniqueKey

Takes an Rsa-Oaep-wrapped TitleKey, an RSA Public Key, and a label hash.

Performs an ExpMod operation using an exponent previously loaded with the #DecryptAndImportEsDeviceKey command, and then validates/extracts a Titlekey from the resulting message.

Returns a session-unique AES key especially for use in #LoadTitleKey.

[5.0.0+] This now uses any exponent previously loaded with #DecryptDeviceUniqueData.

LoadPreparedAesKey

Takes a session-unique AES key from #PrepareEsCommonKey or #PrepareEsDeviceUniqueKey.

PrepareEsCommonKey

Takes an AES-wrapped common TitleKey and returns a sealed AES key.

FunctionId1

Functions exposed to the kernel internally.

Value Name
0xC4000001 SuspendCpu
0x84000002 PowerOffCpu
0xC4000003 PowerOnCpu
0xC3000004 GetConfig (same as in #FunctionId0)
0xC3000005 GenerateRandomBytesNonBlocking
0xC3000006 ShowError
0xC3000007 [2.0.0+] SetKernelCarveoutRegion
0xC3000008 [2.0.0+] ReadWriteRegister

SuspendCpu

Takes an u64 PowerState, an u64 EntrypointAddress and an u64 ContextId. No output.

Suspends the CPU (CPU0).

The kernel calls this SMC on shutdown with PowerState set to 0x0201001B (power level: 0x02==system; power type: 0x01==powerdown; ID: 0x1B).

PowerOffCpu

No input/output.

Turns off the CPU (CPU1, CPU2 or CPU3).

PowerOnCpu

Takes an u64 TargetCpu, an u64 EntrypointAddress and an u64 ContextId. Returns #Result.

Turns on the CPU (CPU1, CPU2 or CPU3).

GetConfig

Takes a #ConfigItem. Returns #Result and a ConfigValue.

ConfigItem

Value Name
1 #DisableProgramVerification
2 #DramId
3 #SecurityEngineInterruptNumber
4 #FuseVersion
5 #HardwareType
6 #HardwareState
7 #IsRecoveryBoot
8 #DeviceId
9 [1.0.0-4.0.0] #BootReason
10 #MemoryMode
11 #IsDevelopmentFunctionEnabled
12 #KernelConfiguration
13 #IsChargerHiZModeEnabled
14 [4.0.0+] #QuestState
15 [5.0.0+] #RegulatorType
16 [5.0.0+] #DeviceUniqueKeyGeneration
17 [5.0.0+] #Package2Hash
DisableProgramVerification

PM checks this item and if non-zero, calls fsp-pr SetEnabledProgramVerification(false).

DramId
Value Description
0 EristaIcosaSamsung4gb
1 EristaIcosaHynix4gb
2 EristaIcosaMicron4gb
3 EristaCopperSamsung4gb
4 EristaIcosaSamsung6gb
5 [4.0.0+] EristaCopperHynix4gb
6 [4.0.0+] EristaCopperMicron4gb
7 [5.0.0+] MarikoIowax1x2Samsung4gb ([4.0.0-4.1.0] Reserved)
8 [5.0.0+] MarikoIowaSamsung4gb
9 [5.0.0+] MarikoIowaSamsung8gb
10 [6.0.0+] MarikoIowaHynix4gb ([5.0.0-5.1.0] Reserved)
11 [7.0.0+] MarikoIowaMicron4gb ([5.0.0-6.2.0] Reserved)
12 [5.0.0+] MarikoHoagSamsung4gb
13 [5.0.0+] MarikoHoagSamsung8gb
14 [7.0.0+] MarikoHoagHynix4gb ([5.0.0-6.2.0] Reserved)
15 [7.0.0+] MarikoHoagMicron4gb ([5.0.0-6.2.0] Reserved)
16 [8.0.0+] MarikoIowaSamsung4gbY
17 [9.0.0+] MarikoIowaSamsung1y4gbX
18 [9.0.0+] MarikoIowaSamsung1y8gbX
19 [9.0.0+] MarikoHoagSamsung1y4gbX
20 [9.0.0+] MarikoIowaSamsung1y4gbY
21 [9.0.0+] MarikoIowaSamsung1y8gbY
22 [9.0.0+] MarikoIowaSamsung1y4gbA
23 [10.0.0+] MarikoUnkSamsung1y8gbX
24 [10.0.0+] MarikoUnkSamsung1y4gbX

This is extracted directly from FUSE_RESERVED_ODM4.

PCV selects memory training tables based on DramId.

SocType Platform DramId Revision DVFS
Erista jetson-tx1 N/A 0x07 
11_40800_01_V9.8.3_V1.6
11_68000_01_V9.8.3_V1.6
11_102000_01_V9.8.3_V1.6
11_204000_05_V9.8.3_V1.6
11_408000_02_V9.8.3_V1.6
11_665600_03_V9.8.3_V1.6
11_800000_01_V9.8.3_V1.6
11_1065600_01_V9.8.3_V1.6
11_1331200_01_V9.8.3_V1.6
11_1600000_02_V9.8.3_V1.6
Erista nx-abcb EristaIcosaSamsung4gb 0x07 
10_40800_NoCfgVersion_V9.8.7_V1.6
10_68000_NoCfgVersion_V9.8.7_V1.6
10_102000_NoCfgVersion_V9.8.7_V1.6
10_204000_NoCfgVersion_V9.8.7_V1.6
10_408000_NoCfgVersion_V9.8.7_V1.6
10_665600_NoCfgVersion_V9.8.7_V1.6
10_800000_NoCfgVersion_V9.8.7_V1.6
10_1065600_NoCfgVersion_V9.8.7_V1.6
10_1331200_NoCfgVersion_V9.8.7_V1.6
10_1600000_NoCfgVersion_V9.8.7_V1.6
Erista nx-abcb EristaIcosaMicron4gb 0x07 
10_40800_NoCfgVersion_V9.8.4_V1.6
10_68000_NoCfgVersion_V9.8.4_V1.6
10_102000_NoCfgVersion_V9.8.4_V1.6
10_204000_NoCfgVersion_V9.8.4_V1.6
10_408000_NoCfgVersion_V9.8.4_V1.6
10_665600_NoCfgVersion_V9.8.4_V1.6
10_800000_NoCfgVersion_V9.8.4_V1.6
10_1065600_NoCfgVersion_V9.8.4_V1.6
10_1331200_NoCfgVersion_V9.8.4_V1.6
10_1600000_NoCfgVersion_V9.8.4_V1.6
Erista nx-abcb EristaIcosaHynix4gb 0x07 
10_40800_NoCfgVersion_V9.8.4_V1.6
10_68000_NoCfgVersion_V9.8.4_V1.6
10_102000_NoCfgVersion_V9.8.4_V1.6
10_204000_NoCfgVersion_V9.8.4_V1.6
10_408000_NoCfgVersion_V9.8.4_V1.6
10_665600_NoCfgVersion_V9.8.4_V1.6
10_800000_NoCfgVersion_V9.8.4_V1.6
10_1065600_NoCfgVersion_V9.8.4_V1.6
10_1331200_NoCfgVersion_V9.8.4_V1.6
10_1600000_NoCfgVersion_V9.8.4_V1.6
Erista nx-abca2 EristaIcosaSamsung4gb, EristaIcosaMicron4gb 0x07 
10_40800_NoCfgVersion_V9.8.7_V1.6
10_68000_NoCfgVersion_V9.8.7_V1.6
10_102000_NoCfgVersion_V9.8.7_V1.6
10_204000_NoCfgVersion_V9.8.7_V1.6
10_408000_NoCfgVersion_V9.8.7_V1.6
10_665600_NoCfgVersion_V9.8.7_V1.6
10_800000_NoCfgVersion_V9.8.7_V1.6
10_1065600_NoCfgVersion_V9.8.7_V1.6
10_1331200_NoCfgVersion_V9.8.7_V1.6
10_1600000_NoCfgVersion_V9.8.7_V1.6
Erista nx-abca2 EristaIcosaHynix4gb 0x07 
10_40800_NoCfgVersion_V9.8.7_V1.6
10_68000_NoCfgVersion_V9.8.7_V1.6
10_102000_NoCfgVersion_V9.8.7_V1.6
10_204000_NoCfgVersion_V9.8.7_V1.6
10_408000_NoCfgVersion_V9.8.7_V1.6
10_665600_NoCfgVersion_V9.8.7_V1.6
10_800000_NoCfgVersion_V9.8.7_V1.6
10_1065600_NoCfgVersion_V9.8.7_V1.6
10_1331200_NoCfgVersion_V9.8.7_V1.6
10_1600000_NoCfgVersion_V9.8.7_V1.6
Erista nx-abca2 EristaIcosaSamsung6gb 0x07 
10_40800_NoCfgVersion_V9.8.7_V1.6
10_68000_NoCfgVersion_V9.8.7_V1.6
10_102000_NoCfgVersion_V9.8.7_V1.6
10_204000_NoCfgVersion_V9.8.7_V1.6
10_408000_NoCfgVersion_V9.8.7_V1.6
10_665600_NoCfgVersion_V9.8.7_V1.6
10_800000_NoCfgVersion_V9.8.7_V1.6
10_1065600_NoCfgVersion_V9.8.7_V1.6
10_1331200_NoCfgVersion_V9.8.7_V1.6
10_1600000_NoCfgVersion_V9.8.7_V1.6
Mariko nx-abca2, nx-abcb, nx-abcc, nx-abcd MarikoIowax1x2Samsung4gb 0x03 
01_204000_NoCfgVersion_V0.3.1_V2.0
01_1331200.0_NoCfgVersion_V0.3.1_V2.0
01_1600000_NoCfgVersion_V0.3.1_V2.0
Mariko nx-abca2, nx-abcb, nx-abcc, nx-abcd MarikoIowaSamsung4gb, MarikoHoagSamsung4gb 0x03 
01_204000_NoCfgVersion_V0.3.1_V2.0
01_1331200.0_NoCfgVersion_V0.3.1_V2.0
01_1600000_NoCfgVersion_V0.3.1_V2.0
Mariko nx-abca2, nx-abcb, nx-abcc, nx-abcd MarikoIowaSamsung8gb, MarikoHoagSamsung8gb 0x03 
01_204000_NoCfgVersion_V0.4.2_V2.0
01_1331200.0_NoCfgVersion_V0.4.2_V2.0
01_1600000_NoCfgVersion_V0.4.2_V2.0
Mariko nx-abca2, nx-abcb, nx-abcc, nx-abcd MarikoIowaHynix4gb, MarikoHoagHynix4gb 0x03 
01_204000_NoCfgVersion_V0.3.1_V2.0
01_1331200.0_NoCfgVersion_V0.3.1_V2.0
01_1600000_NoCfgVersion_V0.3.1_V2.0
Mariko nx-abca2, nx-abcb, nx-abcc, nx-abcd MarikoIowaMicron4gb, MarikoHoagMicron4gb 0x03 
01_204000_NoCfgVersion_V0.4.2_V2.0
01_1331200.0_NoCfgVersion_V0.4.2_V2.0
01_1600000_NoCfgVersion_V0.4.2_V2.0
Mariko nx-abca2, nx-abcb, nx-abcc, nx-abcd MarikoIowaSamsung4gbY 0x03 
01_204000_NoCfgVersion_V0.4.2_V2.0
01_1331200.0_NoCfgVersion_V0.4.2_V2.0
01_1600000_NoCfgVersion_V0.4.2_V2.0
Mariko nx-abca2, nx-abcb, nx-abcc, nx-abcd MarikoIowaSamsung1y4gbX 0x03 
01_204000_NoCfgVersion_V0.4.2_V2.0
01_1331200.0_NoCfgVersion_V0.4.2_V2.0
01_1600000_NoCfgVersion_V0.4.2_V2.0
Mariko nx-abca2, nx-abcb, nx-abcc, nx-abcd MarikoIowaSamsung1y8gbX 0x03 
01_204000_NoCfgVersion_V0.4.2_V2.0
01_1331200.0_NoCfgVersion_V0.4.2_V2.0
01_1600000_NoCfgVersion_V0.4.2_V2.0
Mariko nx-abca2, nx-abcb, nx-abcc, nx-abcd MarikoHoagSamsung1y4gbX 0x03 
01_204000_NoCfgVersion_V0.4.2_V2.0
01_1331200.0_NoCfgVersion_V0.4.2_V2.0
01_1600000_NoCfgVersion_V0.4.2_V2.0
Mariko nx-abca2, nx-abcb, nx-abcc, nx-abcd MarikoIowaSamsung1y4gbY 0x03 
01_204000_NoCfgVersion_V0.4.2_V2.0
01_1331200.0_NoCfgVersion_V0.4.2_V2.0
01_1600000_NoCfgVersion_V0.4.2_V2.0
Mariko nx-abca2, nx-abcb, nx-abcc, nx-abcd MarikoIowaSamsung1y8gbY 0x03 
01_204000_NoCfgVersion_V0.4.2_V2.0
01_1331200.0_NoCfgVersion_V0.4.2_V2.0
01_1600000_NoCfgVersion_V0.4.2_V2.0
Mariko nx-abca2, nx-abcb, nx-abcc, nx-abcd MarikoIowaSamsung1y4gbA 0x03 
01_204000_NoCfgVersion_V0.4.5_V2.0
01_1331200.0_NoCfgVersion_V0.4.5_V2.0
01_1600000_NoCfgVersion_V0.4.5_V2.0

nx-abca2 (Icosa in Erista, Iowa in Mariko) hardware types are variations of the retail, EDEV and SDEV form factors.

nx-abcb (Copper in Erista, Calcio in Mariko) is a prototype unit. Among other differences, this has extra hardware to support HDMI output.

[8.0.0+] nx-abcc (Hoag) was added for the Lite retail and HDEV form factors.

[10.0.0+] nx-abcd was added.

Erista memory is LPDDR4, while Mariko memory is LPDDR4X.

SecurityEngineInterruptNumber

SPL uses this for setting up the security engine IRQ.

FuseVersion

The current bootloader maximum version - 1.

HardwareType
Value Description
0 Icosa
1 Copper
2 [8.0.0+] Hoag ([1.0.0-7.0.1] Invalid)
3 [4.0.0+] Iowa
4 [8.0.0+] Calcio
5 [10.0.0+] Unknown
15 Invalid

[1.0.0+] This item is obtained by checking bits 8 and 2 from FUSE_RESERVED_ODM4.

[4.0.0+] This item is obtained by checking bits 8, 2 and 16-19 from FUSE_RESERVED_ODM4.

[7.0.0+] This item can now only be 0 (Icosa) or 15 (Invalid) in Erista units.

Hardware is Icosa (Erista retail, EDEV and SDEV) if HardwareType1 (bit 2) is 1 and HardwareType2 (bit 8) is 0.

Hardware is Copper (Erista prototype) if HardwareType1 (bit 2) is 0 and HardwareType2 (bit 8) is 1.

[4.0.0+] Hardware is Iowa (Mariko retail, EDEV and SDEV) if HardwareType3 (bits 16-19) is 1.

[8.0.0+] Hardware is Hoag (Mariko Lite retail and HDEV) if HardwareType3 (bits 16-19) is 2.

[8.0.0+] Hardware is Calcio (Mariko prototype) if HardwareType1 (bit 2) is 0 and HardwareType2 (bit 8) is 1.

[10.0.0+] Hardware is Unknown if HardwareType3 (bits 16-19) is 4.

HardwareState
Value Description
0 Development
1 Production
2 Invalid

This item is obtained by checking bits 9 and 0-1 from FUSE_RESERVED_ODM4.

Hardware is Development if HardwareState1 (bits 0-1) is 3 and HardwareState2 (bit 9) is 0.

Hardware is Production if HardwareState1 (bits 0-1) is 0 and HardwareState2 (bit 9) is 1.

IsRecoveryBoot

Used to determine if the system is booting from SafeMode firmware.

Under normal circumstances, this just returns bit 0 of the active bootloader info's attribute field.

DeviceId

NIM checks if this item matches the set:cal DeviceId with byte7 cleared. If they don't match, a panic is thrown.

BootReason
Value Description
0 Invalid
1 AcOk
2 OnKey
3 RtcAlarm1
4 RtcAlarm2

Used to determine how the system booted.

MemoryMode
Bits Description
0-3 Purpose (0 = None, 1 = ForStandard, 2 = ForAppletDev, 3 = ForSystemDev)
4-7 Size (0 = 4GB, 1 = 6GB, 2 = 8GB)

PM and the kernel decide memory arrangement based on MemoryMode.

MemoryArrange MemoryMode Description
0 0x01 Standard
1 0x02 StandardForAppletDev
2 0x03 StandardForSystemDev
3 0x11 Expanded
4 0x12 ExpandedForAppletDev
5 0x21 ExpandedForMarikoDev
IsDevelopmentFunctionEnabled

Kernel uses this to determine behavior of svcBreak positive arguments. It will break instead of just force-exiting the process which is what happens on retail.

[2.0.0+] This is also used with certain debug SVCs.

[3.0.0+] RO checks this and if set then skipping NRR rsa signatures is allowed.

KernelConfiguration
Bits Description
0 EnableNonZeroFillMemory
1 EnableUserExceptionHandler
2 PerformanceMonitoringUnit
3 [8.0.0+] EnableApplicationExtraThread
8 CallShowErrorOnPanic
16-17 MemorySize

Kernel reads this when setting up memory-related code.

EnableNonZeroFillMemory is a boolean determining whether kernel should it will memset various allocated memory-regions with 0x58, 0x59, 0x5A ('X', 'Y', 'Z') instead of zero. This allows Nintendo devs to find uninitialized memory bugs.

EnableUserExceptionHandler is a boolean determining whether kernel should forcefully enable usermode exception handlers (when false, only certain aborts (((1LL << (esr >> 26)) & 0x1115804400224001) == 0, typically data/prefetch aborts) that occur when the faulting address is in a readable region with MemoryType_CodeStatic will trigger usermode exception handlers).

PerformanceMonitoringUnit is a boolean determining whether kernel should enable usermode access to the Performance Monitors (whether PMUSERENR_EL0 should be 1 or 0).

EnableApplicationExtraThread is a boolean determining whether the kernel should increase the KThread slabheap capacity by 160. This also increases object capacities that are calculated based on number of threads.

CallShowErrorOnPanic is a boolean determining whether kernel should call smcPanic on error instead of infinite-looping.

MemorySize determines how much memory is available. 00/03 = 4 GB, 01 = 6 GB, 02 = 8 GB.

IsChargerHiZModeEnabled

This tells if the TI Charger (bq24192) is active.

QuestState
Value Description
0 Disabled
1 Enabled

This item is bit 10 from FUSE_RESERVED_ODM4.

[4.0.0+] Settings uses this value to overwrite the quest flag from GetQuestFlag. This is used to detect if a Switch is a kiosk unit for display at retail stores.

RegulatorType
Value SocType GPU Power Blocks
0 Erista GM20B (0x12B) max77620_sd0, max77621_cpu and max77621_gpu
1 Mariko GM20B_B (0x12E) max77620_sd0, max77812_cpu and max77812_gpu
2 Mariko GM20B_B (0x12E) max77620_sd0, max77812_cpu and max77812_gpu

[5.0.0+] PCV uses this value in combination with HardwareType to configure power blocks and memory tables for different hardware.

DeviceUniqueKeyGeneration

This item is obtained from FUSE_RESERVED_ODM2 if bit 11 from FUSE_RESERVED_ODM4 is set, FUSE_RESERVED_ODM0 matches 0x8E61ECAE and FUSE_RESERVED_ODM1 matches 0xF2BA3BB2.

[5.0.0+] FS can now use this value for the KeyGeneration parameter when calling GenerateAesKek during "GetBisEncryptionKey".

Package2Hash

This is a SHA-256 hash calculated over the package2 image. Since the hash calculation is an optional step in pkg2ldr, this item is only valid in recovery mode. Otherwise, an error is returned instead.

ShowError

Takes an u32 Color and issues a system panic.

The kernel always calls this with Color set to 0xF00.

SetKernelCarveoutRegion

Takes an u64 Index, an u64 Address and an u64 Size. Returns #Result.

If Index is 0, Address and Size are used to configure MC_SECURITY_CARVEOUT4. If Index is 1, Address and Size are used to configure MC_SECURITY_CARVEOUT5. Any other Index values are invalid.

The kernel calls this with Index set to 0, Address set to 0x80060000 and Size set to a dynamically calculated size which covers all the kernel and built-in sysmodules' DRAM regions.

ReadWriteRegister

Takes an u64 Register, an u32 Mask and an u32 InValue. Returns #Result and an u32 OutValue.

Relays svcReadWriteRegister to the Secure Monitor.

CryptoUsecase

Value Name
0 Aes
1 RsaPrivate
2 SecureExpMod
3 RsaOaep
4 [5.0.0+] RsaImport
5 [5.0.0+]
6 [5.0.0+]

CipherMode

Value Name
0 CbcEncrypt
1 CbcDecrypt
2 Ctr

DecryptOrImportMode

Value Name
0 DecryptRsaPrivateKey
1 ImportLotusKey
2 ImportEsKey
3 ImportSslKey
4 ImportDrmKey

SecureExpModMode

Value Name
0 Lotus
1 Ssl
2 Drm

EsKeyType

Value Name
0 TitleKey
1 ElicenseKey

Result

Value Description
0 Success
1 Not implemented
2 Invalid argument
3 In progress
4 No async operation
5 Invalid async operation
6 [8.0.0+] Not permitted
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