Secure Monitor: Difference between revisions

Line 672:

[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.~~

===== KernelConfiguration =====

{| class="wikitable" border="1"

|-

! Bits

! Description

|-

| 0

| EnableNonZeroFillMemory

|-

| 1

| EnableUserExceptionHandler

|-

| 2

| PerformanceMonitoringUnit

|-

| 3

| EnableApplicationExtraThread

|-

| 8

| CallShowErrorOnPanic

|-

| 16-17

| MemorySize

|}

~~===== KernelConfiguration =====~~

Kernel reads this when setting up memory-related code.

~~Bit 0~~ 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.

~~Bit 1~~ 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).

~~Bit 2~~ 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).

[8.0.0+] ~~Bit 3~~ 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.

[8.0.0+] '''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.

~~Bits 8-15 are~~ 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.

~~Bits 16-17 determine~~ 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 =====

@@ Line 672: / Line 672: @@
 [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.
+===== KernelConfiguration =====
+{| class="wikitable" border="1"
+|-
+! Bits
+! Description
+|-
+| 0
+| EnableNonZeroFillMemory
+|-
+| 1
+| EnableUserExceptionHandler
+|-
+| 2
+| PerformanceMonitoringUnit
+|-
+| 3
+| EnableApplicationExtraThread
+|-
+| 8
+| CallShowErrorOnPanic
+|-
+| 16-17
+| MemorySize
+|}
-===== KernelConfiguration =====
+Kernel reads this when setting up memory-related code.
-Kernel reads this when setting up memory-related code.
-Bit 0 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.
-Bit 1 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).
-Bit 2 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).
-[8.0.0+] Bit 3 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.
+[8.0.0+] '''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.
-Bits 8-15 are 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.
-Bits 16-17 determine 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 =====