Nintendo Switch Brew

Changes

Secure Monitor (view source)

Revision as of 23:56, 17 September 2018

6,262 bytes added ,  23:56, 17 September 2018
Moved config vals from SPL_services
Line 198: Line 198:  
=== GetConfig ===
 
=== GetConfig ===
 
Takes a '''config_item''' and returns an associated '''config_val'''.
 
Takes a '''config_item''' and returns an associated '''config_val'''.
 +
 +
{| class="wikitable" border="1"
 +
|-
 +
! ConfigItem || Name
 +
|-
 +
| 1 || [[#DisableProgramVerification]]
 +
|-
 +
| 2 || [[#DramId]]
 +
|-
 +
| 3 || [[#SecurityEngineIrqNumber]]
 +
|-
 +
| 4 || [[#Version]]
 +
|-
 +
| 5 || [[#HardwareType]]
 +
|-
 +
| 6 || [[#IsRetail]]
 +
|-
 +
| 7 || [[#IsRecoveryBoot]]
 +
|-
 +
| 8 || [[#DeviceId]]
 +
|-
 +
| 9 || [1.0.0-4.0.0] [[#BootReason]]
 +
|-
 +
| 10 || [[#MemoryArrange]]
 +
|-
 +
| 11 || [[#IsDebugMode]]
 +
|-
 +
| 12 || [[#KernelMemoryConfiguration]]
 +
|-
 +
| 13 || [[#IsChargerHiZModeEnabled]]
 +
|-
 +
| 14 || [4.0.0+] [[#IsKiosk]]
 +
|-
 +
| 15 || [5.0.0+] [[#NewHardwareType]]
 +
|-
 +
| 16 || [5.0.0+] [[#NewKeyGeneration]]
 +
|-
 +
| 17 || [5.0.0+] [[#Package2Hash]]
 +
|}
 +
 +
==== DisableProgramVerification ====
 +
[[Process Manager services|PM]] checks this item and if non-zero, calls fsp-pr SetEnabledProgramVerification(false).
 +
 +
==== DramId ====
 +
This is extracted directly from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]].
 +
 +
{| class="wikitable" border="1"
 +
|-
 +
!  Value
 +
!  Description
 +
|-
 +
|  0
 +
|  DramId_EristaIcosaSamsung4gb
 +
|-
 +
|  1
 +
|  DramId_EristaIcosaHynix4gb
 +
|-
 +
|  2
 +
|  DramId_EristaIcosaMicron4gb
 +
|-
 +
|  3
 +
|  Reserved
 +
|-
 +
|  4
 +
|  DramId_EristaIcosaSamsung6gb
 +
|-
 +
|  5
 +
|  [5.0.0+] Reserved
 +
|-
 +
|  6
 +
|  [5.0.0+] Reserved
 +
|-
 +
|  7
 +
|  [5.0.0+] DramId_MarikoIowax1x2Samsung4gb
 +
|-
 +
|  8
 +
|  [5.0.0+] DramId_MarikoIowaSamsung4gb
 +
|-
 +
|  9
 +
|  [5.0.0+] DramId_MarikoIowaSamsung8gb
 +
|-
 +
|  10
 +
|  [5.0.0+] Reserved
 +
|-
 +
|  11
 +
|  [5.0.0+] Reserved
 +
|-
 +
|  12
 +
|  [5.0.0+] DramId_MarikoHoagSamsung4gb
 +
|-
 +
|  13
 +
|  [5.0.0+] DramId_MarikoHoagSamsung8gb
 +
|}
 +
 +
[[PCV_services|PCV]] configures memory profiles based on DramId.
 +
{| class="wikitable" border="1"
 +
|-
 +
!  Platform
 +
!  DramId
 +
!  Version
 +
|-
 +
|  jetson-tx1
 +
|  N/A
 +
|  11_40800_01_V9.8.3_V1.6
 +
|-
 +
|  nx-abcb
 +
|  EristaIcosaSamsung4gb
 +
|  10_40800_NoCfgVersion_V9.8.7_V1.6
 +
|-
 +
|  nx-abcb
 +
|  EristaIcosaMicron4gb
 +
|  10_40800_NoCfgVersion_V9.8.4_V1.6
 +
|-
 +
|  nx-abcb
 +
|  EristaIcosaHynix4gb
 +
|  10_40800_NoCfgVersion_V9.8.4_V1.6
 +
|-
 +
|  nx-abca2
 +
|  EristaIcosaSamsung4gb or EristaIcosaMicron4gb
 +
|  10_40800_NoCfgVersion_V9.8.7_V1.6
 +
|-
 +
|  nx-abca2
 +
|  EristaIcosaHynix4gb
 +
|  10_40800_NoCfgVersion_V9.8.7_V1.6
 +
|-
 +
|  nx-abca2
 +
|  EristaIcosaSamsung6gb
 +
|  10_40800_NoCfgVersion_V9.8.7_V1.6
 +
|-
 +
|  nx-abca2
 +
|  MarikoIowax1x2Samsung4gb
 +
|  01_204000_NoCfgVersion_V0.3.1_V2.0
 +
|-
 +
|  nx-abca2
 +
|  MarikoIowaSamsung4gb or MarikoHoagSamsung4gb
 +
|  01_204000_NoCfgVersion_V0.3.1_V2.0
 +
|-
 +
|  nx-abca2
 +
|  MarikoIowaSamsung8gb or MarikoHoagSamsung8gb
 +
|  01_204000_NoCfgVersion_V0.4.2_V2.0
 +
|}
 +
 +
nx-abcb (Copper) is the SDEV unit. Among other differences, this has extra hardware to support HDMI output.
 +
 +
nx-abca2 (Icosa) hardware types are variations of the retail form factor.
 +
 +
==== SecurityEngineIrqNumber ====
 +
SPL uses this for setting up the security engine IRQ.
 +
 +
==== Version ====
 +
The current [[Package2#Versions|Package1 Maxver Constant]] - 1.
 +
 +
==== 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 0 (Icosa), 1 (Copper) or 3 (Invalid).
 +
 +
[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 0 (Icosa), 1 (Copper), 3 (Mariko) or 4 (Invalid).
 +
 +
A value of 2 (Hoag?) is always mapped to 4 (Invalid).
 +
 +
==== IsRetail ====
 +
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).
 +
 +
==== IsRecoveryBoot ====
 +
Used to determine if the system is booting from SafeMode firmware.
 +
 +
==== DeviceId ====
 +
[[NIM_services|NIM]] checks if this item matches the [[Settings_services|set:cal]] DeviceId with byte7 cleared. If they don't match, a panic is thrown.
 +
 +
==== BootReason ====
 +
Used to determine how the system booted.
 +
 +
==== MemoryArrange ====
 +
[[Process Manager services|PM]] uses this item for selecting the appropriate size for each [[SVC#LimitableResource|LimitableResource_Memory]].
 +
 +
==== IsDebugMode ====
 +
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 [[SVC|SVCs]].
 +
 +
[3.0.0+] [[Loader services|RO]] checks this and if set then skipping NRR rsa signatures is allowed.
 +
 +
The value of this field is loaded from [[BootConfig]] unsigned-config+0x10 u8 bit1.
 +
 +
==== KernelMemoryConfiguration ====
 +
Kernel reads this when setting up memory-related code. If bit0 is set, 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. If bit17-16 is 0b01, the kernel assumes 6GB of DRAM instead of 4GB.
 +
 +
==== IsChargerHiZModeEnabled ====
 +
This tells if the TI Charger (bq24192) is active.
 +
 +
==== NewKeyGeneration ====
 +
This item is obtained from [[Fuse_registers#FUSE_RESERVED_ODM2|FUSE_RESERVED_ODM2]] if bit 11 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]] is set, [[Fuse_registers#FUSE_RESERVED_ODM0|FUSE_RESERVED_ODM0]] matches 0x8E61ECAE and [[Fuse_registers#FUSE_RESERVED_ODM1|FUSE_RESERVED_ODM1]] matches 0xF2BA3BB2.
 +
 +
[5.0.0+] [[Filesystem services|FS]] can now use this value for the '''KeyGeneration''' parameter when calling [[#GenerateAesKek|GenerateAesKek]] during "GetBisEncryptionKey".
 +
 +
==== IsKiosk ====
 +
This item is bit 10 from [[Fuse_registers#FUSE_RESERVED_ODM4|FUSE_RESERVED_ODM4]].
 +
 +
[4.0.0+] [[Settings_services|Settings]] uses this value to overwrite the quest flag from [[Settings_services#set:sys|GetQuestFlag]]. This is used to detect if a Switch is a kiosk unit for display at retail stores.
 +
 +
==== NewHardwareType ====
 +
This item is currently hardcoded to 0.
 +
 +
[5.0.0+] [[PCV_services|PCV]] overrides the value from [[#HardwareType|HardwareType]] and configures PMIC devices with this item.
 +
{| class="wikitable" border="1"
 +
|-
 +
!  Value
 +
!  Devices
 +
|-
 +
|  0
 +
|  max77620_sd0, max77621_cpu and max77621_gpu
 +
|-
 +
|  1
 +
|  max77620_sd0, max77812_cpu and max77812_gpu
 +
|-
 +
|  2
 +
|  max77620_sd0, max77812_cpu and max77812_gpu
 +
|}
 +
 +
==== Package2Hash ====
 +
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.
    
=== GetRandomBytes ===
 
=== GetRandomBytes ===
Retrieved from "https://switchbrew.org/wiki/Special:MobileDiff/4995"