KBL Param: Difference between revisions
CelesteBlue (talk | contribs) |
No edit summary |
||
| Line 18: | Line 18: | ||
| 0x2C || 0x8 || [[Sysroot#Bitfield Flags|Bitfield Flags]] | | 0x2C || 0x8 || [[Sysroot#Bitfield Flags|Bitfield Flags]] | ||
|- | |- | ||
| 0x34 || 0xC || unk | | 0x34 || 0xC || unk (On production models by default its 0xFFFF, on a prototype DEM H unit with fw 0.945 - always 0xFEFF) | ||
|- | |- | ||
| 0x40 || 0x4 || Devkit CP timestamp 1 | | 0x40 || 0x4 || Devkit CP timestamp 1 | ||
| Line 32: | Line 32: | ||
| 0x50 || 0x4 || Devkit Config Flags1 (0x80000000 or 0x80000001 or 0x80000003 or 0x81000000 or 0x81000001 OR 0x0 or 0x2 in release mode) | | 0x50 || 0x4 || Devkit Config Flags1 (0x80000000 or 0x80000001 or 0x80000003 or 0x81000000 or 0x81000001 OR 0x0 or 0x2 in release mode) | ||
|- | |- | ||
| 0x54 || 0x4 || unk | | 0x54 || 0x4 || unk | ||
|- | |- | ||
| 0x58 || 0x4 || Devkit ?? (ex: | | 0x58 || 0x4 || Devkit ?? (ex: 0x1453E7) | ||
|- | |- | ||
| 0x5C || 0x4 || Devkit Config Flags3 (0x20000010) | | 0x5C || 0x4 || Devkit Config Flags3 (0x20000010) | ||
| Line 72: | Line 72: | ||
| 0xC4 || 0x4 || Boot type indicator (0x80 on resume) | | 0xC4 || 0x4 || Boot type indicator (0x80 on resume) | ||
|- | |- | ||
| 0xC8 || 0x8 || unk | | 0xC8 || 0x8 || unk (0x40 on retail and testkit, 0x64 on devkit, 0xC001C0 on a prototype DEM H unit) | ||
|- | |- | ||
| 0xD0 || 0x4 || [[Suspend|Saved context]] paddr | | 0xD0 || 0x4 || [[Suspend|Saved context]] paddr | ||
| Line 78: | Line 78: | ||
| 0xD4 || 0x4 || Hardware info | | 0xD4 || 0x4 || Hardware info | ||
|- | |- | ||
| 0xD8 || 0x20 || unk | | 0xD8 || 0x20 || unk ( 0x0 on retail, 0x4 on testkit, 0xC on devkit ) | ||
|- | |- | ||
| 0xF8 || 0x4 || BootLoader Revision | | 0xF8 || 0x4 || BootLoader Revision | ||
| Line 118: | Line 118: | ||
! Bit !! Description | ! Bit !! Description | ||
|- | |- | ||
| | | 152 || PS TV Emulation: On: 1 - Off: 0 | ||
|- | |- | ||
| | | 159 || Release Check Mode: Development Mode: 1 - Release Mode: 0 | ||
|- | |- | ||
| | | ? || Memory Size: Console Size: 1 - Development Tool Size: 0 | ||
|} | |} | ||
Revision as of 15:18, 28 June 2018
The sysroot buffer is a 0x100 or 0x200 sized buffer passed to the secure kernel bootloader in the scratch space and contains all sorts of flags and system parameters. This buffer is copied to the secure kernel, the non-secure kernel loader, and the non-secure kernel and is used by many functions to check for features that are enabled for the system.
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x2 | Version (usually 1) |
| 0x2 | 0x2 | Sysroot size (0x100 or 0x200) |
| 0x4 | 0x4 | Current Firmware Version |
| 0x8 | 0x4 | Factory Firmware Version |
| 0xC | 0x14 | unk |
| 0x20 | 0xC | QA flags |
| 0x2C | 0x8 | Bitfield Flags |
| 0x34 | 0xC | unk (On production models by default its 0xFFFF, on a prototype DEM H unit with fw 0.945 - always 0xFEFF) |
| 0x40 | 0x4 | Devkit CP timestamp 1 |
| 0x44 | 0x2 | Devkit CP Version |
| 0x44 | 0x2 | Devkit CP Build ID |
| 0x48 | 0x4 | Devkit CP timestamp 2 |
| 0x4C | 0x4 | ASLR Seed |
| 0x50 | 0x4 | Devkit Config Flags1 (0x80000000 or 0x80000001 or 0x80000003 or 0x81000000 or 0x81000001 OR 0x0 or 0x2 in release mode) |
| 0x54 | 0x4 | unk |
| 0x58 | 0x4 | Devkit ?? (ex: 0x1453E7) |
| 0x5C | 0x4 | Devkit Config Flags3 (0x20000010) |
| 0x60 | 0x4 | DRAM base paddr |
| 0x64 | 0x4 | DRAM size |
| 0x68 | 0x4 | unk |
| 0x6C | 0x4 | Boot type indicator (0x20000 on resume - no boot logo, 0x1 on boot - boot logo) |
| 0x70 | 0x10 | OpenPsId |
| 0x80 | 0x4 | secure_kernel.enp raw data paddr (optional)
|
| 0x84 | 0x4 | secure_kernel.enp size (optional)
|
| 0x88 | 0x8 | unk |
| 0x90 | 0x4 | kprx_auth_sm.self raw data paddr
|
| 0x94 | 0x4 | kprx_auth_sm.self size
|
| 0x98 | 0x4 | prog_rvk.srvk raw data paddr
|
| 0x9C | 0x4 | prog_rvk.srvk size
|
| 0xA0 | 0x8 | PSCode |
| 0xA8 | 0x8 | unk |
| 0xB0 | 0x10 | Session ID |
| 0xC0 | 0x4 | unk |
| 0xC4 | 0x4 | Boot type indicator (0x80 on resume) |
| 0xC8 | 0x8 | unk (0x40 on retail and testkit, 0x64 on devkit, 0xC001C0 on a prototype DEM H unit) |
| 0xD0 | 0x4 | Saved context paddr |
| 0xD4 | 0x4 | Hardware info |
| 0xD8 | 0x20 | unk ( 0x0 on retail, 0x4 on testkit, 0xC on devkit ) |
| 0xF8 | 0x4 | BootLoader Revision |
| 0xFC | 0x4 | Sysroot Magic value (0xCBAC03AA) |
| 0x100 | 0x20 | Encrypted Session Key (FW 2.12+) |
Bitfield Flags
Flags
At offset 0x2C there is a 8 byte flags field.
| Bit | Description |
|---|---|
| 29 | Set to skip version checks in system updates |
DIP Switches
To convert the bit number to the offset and bit: offset = 0x40 + (bit_num / 32) * 4, bit = 1 << (bit_num % 32)
CP Information
Bits 0-31 is a 32-bit integer of the current time on the devkit CP clock. This is duplicated in bits 64-95.
Bits 32-47 is a 16-bit integer of the CP version and bits 48-63 is a 16-bit integer of the CP build ID. All integers are little-endian.
On non-devkits, these fields are zero. Bits 0-63 are also usable as general purpose switches exposed with sceKernelSetDipsw, sceKernelClearDipsw, and sceKernelCheckDipsw but they do not change anything in hardware (only cached values are overwritten).
User Flags
Bits 96-127 does not seem to be used in the kernel.
DevKit Boot Parameters
Bits 128-159 are used to store DevKit flags. It does not appear to be used in other models.
| Bit | Description |
|---|---|
| 152 | PS TV Emulation: On: 1 - Off: 0 |
| 159 | Release Check Mode: Development Mode: 1 - Release Mode: 0 |
| ? | Memory Size: Console Size: 1 - Development Tool Size: 0 |
Shell Flags
Bits 160-191 are used for SceShell flags.
| Bit | Description |
|---|
Debug Flags
Bits 192-223 are for various debugging options.
| Bit | Description |
|---|---|
| 197 | Enable kernel console logging |
| 211 | Enable user UART console logging |
System Flags
Bits 224-255 are used for various system options.
| Bit | Description |
|---|---|
| 229 | HDCP related? |