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The PS5 has many kernel devices that can be accessed through [[IOCTL]]. Some of them have usermode module equivalents, some like "sbl" consist in [[Secure Modules]] and some like "camera" make use of a dedicated firmware stored in kernel memory.
See also [https://psdevwiki.com/ps4/Devices PS4 devices].
Note for ioctls: * indicates name is assumed from RE and may not be accurate.
== Device Listing ==
== Device Listing ==
Note: only unique devices are listed. Benign devices like /dev/null are omitted for brevity's sake.
 
Unique devices are listed here. Benign devices like /dev/null are omitted for brevity's sake.


{| class="wikitable sortable"
{| class="wikitable sortable"
Line 12: Line 19:
| /dev/auditpipe || - || -
| /dev/auditpipe || - || -
|-
|-
| /dev/authmgr || - || -
| /dev/authmgr || Authentication Manager || -
|-
|-
| /dev/az{1,ctl} || - || -
| /dev/az{1,ctl} || - || Audio-related
|-
|-
| /dev/bar || - || -
| /dev/bar || Backup and Restore || Used by shellcore for backup and recovery
|-
|-
| /dev/bfs || - || -
| /dev/bfs/ctl || - || -
|-
|-
| /dev/bluetooth_hid || - || -
| /dev/bluetooth_hid || - || -
Line 26: Line 33:
| /dev/camera || Camera || -
| /dev/camera || Camera || -
|-
|-
| /dev/cloudsd || - || -
| /dev/cloudsd || Cloud SaveData || -
|-
|-
| /dev/console || Console || Usermode logging
| /dev/console || Console || Usermode logging
|-
|-
| /dev/crepo || - || -
| /dev/crepo || Crash Report || Used for crash reporting service (coredump, gpudump, shellcore)
|-
|-
| /dev/ctrlp{_sync} || - || -
| /dev/ctrlp{_sync} || - || Used by libScePad (controller)
|-
|-
| /dev/dbggc{_control} || Debug GPU? || -
| /dev/dbggc{_control} || Debug GPU? || -
Line 52: Line 59:
| /dev/dipsw || Dip Switch || -
| /dev/dipsw || Dip Switch || -
|-
|-
| /dev/dldbg || - || -
| /dev/dldbg || Dynamic Library Debug || -
|-
|-
| /dev/dmem{0,1,2} || - || -
| /dev/dmem{0,1,2} || - || -
Line 58: Line 65:
| /dev/dngl || - || -
| /dev/dngl || - || -
|-
|-
| /dev/duid || - || -
| /dev/duid || Disc Unique ID || -
|-
|-
| /dev/encdec || EncDec || -
| /dev/encdec || EncDec || -
|-
|-
| /dev/envelope || - || -
| /dev/envelope || Envelope Format Crypto || -
|-
|-
| /dev/evlg{0,1} || - || -
| /dev/evlg{0,1} || Event Log || Intended to be used with read syscall
|-
|-
| /dev/exthdd || External HDD || -
| /dev/exthdd || External HDD || -
Line 72: Line 79:
| /dev/fsctrl || - || -
| /dev/fsctrl || - || -
|-
|-
| /dev/fttrm || - || -
| /dev/fttrm || - || Used by bluray app
|-
|-
| /dev/gbase || - || -
| /dev/gbase || - || -
Line 92: Line 99:
| /dev/hmd_* || VR || -
| /dev/hmd_* || VR || -
|-
|-
| /dev/iccnvs{0,1,2,4,6} || - || -
| /dev/iccnvs{0,1,2,4,6} || ICC_NVS (sectors) || Location of Sectors 0, 1, 2, 4 and 6 of sflash0 non volatile storage
|-
|-
| /dev/icc_configuration || ICC Config || -
| /dev/icc_configuration || ICC Config || -
Line 102: Line 109:
| /dev/icc_fan || ICC Fan || -
| /dev/icc_fan || ICC Fan || -
|-
|-
| /dev/icc_floyd || ICC TPM? || -
| /dev/icc_floyd || ICC TPM? || SNVS Storage Device
|-
|-
| /dev/icc_indicator || ICC LED || -
| /dev/icc_indicator || ICC LED || -
Line 118: Line 125:
| /dev/kmbp || - || -
| /dev/kmbp || - || -
|-
|-
| /dev/lvdctl || - || -
| /dev/lvdctl || Layered Vnode Device Control || -
|-
|-
| /dev/lvd{0,1} || - || -
| /dev/lvd{0,1} || Layered Vnode Device || -
|-
|-
| /dev/m2.ctl || m.2 NVMe Control? || -
| /dev/m2.ctl || m.2 NVMe Control? || -
|-
| /dev/manuauth || Manufacturer Auth|| -
|-
|-
| /dev/mbus || Event bus || -
| /dev/mbus || Event bus || -
Line 128: Line 137:
| /dev/mbus_av || Event bus (audio video?) || -
| /dev/mbus_av || Event bus (audio video?) || -
|-
|-
| /dev/md0 || - || -
| /dev/md0 || Kernel Md0 || Main System modules are located here for Kernel (Not System Modules!)
|-
|-
| /dev/md2 || - || -
| /dev/md2 || - || -
Line 140: Line 149:
| /dev/mp3 || Trusted Execution Environment (TEE) || See mp3 section
| /dev/mp3 || Trusted Execution Environment (TEE) || See mp3 section
|-
|-
| /dev/mp4 || A53 (mdbg?) || See mp4 section
| /dev/mp4/dump{_for_decid} || A53 (mdbg?) || See mp4 section
|-
|-
| /dev/notification{0-9} || Notification || -
| /dev/notification{0-9} || Notification || -
|-
|-
| /dev/npdrm || - || -
| /dev/npdrm || Network Product Digital Rights Management interface || -
|-
|-
| /dev/nsfsctl || - || -
| /dev/nsfsctl || Namespace Filesystem (NSFS) Control || -
|-
|-
| /dev/nsid1.ctl || - || -
| /dev/nsid1.ctl || - || -
Line 152: Line 161:
| /dev/otpaccess || One-Time Programmable Access? || -
| /dev/otpaccess || One-Time Programmable Access? || -
|-
|-
| /dev/pfsctldev || - || -
| /dev/pfsctldev || Playstation Filesystem (PFS) Control || -
|-
|-
| /dev/pfsmgr || - || -
| /dev/pfsmgr || PFS Manager || Used for trophies, savegames, keystone
|-
|-
| /dev/playgo_emu_param{1,2,3} || PlayGo emulator params || -
| /dev/playgo_emu_param{1,2,3} || PlayGo emulator params || -
|-
|-
| /dev/pltauth{0,1} || - || -
| /dev/pltauth{0,1} || Platform Authentication (PSN) || -
|-
|-
| /dev/pup_update0 || PUP Update || -
| /dev/pup_update0 || PUP Update || -
|-
|-
| /dev/qafutkn || QA flag / utoken || -
| /dev/qafutkn || QA flag / Utoken || -
|-
|-
| /dev/rnps || React Native PS || PSN related
| /dev/rnps || React Native PS || PSN related
|-
|-
| /dev/rootparam || - || -
| /dev/rootparam || Root Param || Used by shellcore for verifying root param sfo/json
|-
|-
| /dev/s3da || 3D Audio || -
| /dev/s3da || 3D Audio || -
|-
|-
| /dev/sbl_secreg || - || -
| /dev/sbl_secreg || SBL Secure Region || -
|-
|-
| /dev/sbl_srv || - || -
| /dev/sbl_srv || SBL Service || Used exclusively by playready
|-
|-
| /dev/scanin || - || -
| /dev/scanin || - || -
Line 182: Line 191:
| /dev/sflash0 || SPI flash || 2MB. Has EMC firmware and (non-secure) NVS.
| /dev/sflash0 || SPI flash || 2MB. Has EMC firmware and (non-secure) NVS.
|-
|-
| /dev/srtc || - || -
| /dev/srtc || Secure Real Time Clock || -
|-
|-
| /dev/ssd0.* || Internal SSD partitions || -
| /dev/ssd0.* || Internal SSD partitions || -
Line 196: Line 205:
| /dev/uvd_{dec/enc/bgt} || Unified Video Decoder? || -
| /dev/uvd_{dec/enc/bgt} || Unified Video Decoder? || -
|-
|-
| /dev/wlanbt || - || -
| /dev/wlanbt || Wireless LAN + Bluetooth || -
|-
|-
| /dev/xtp0 || - || -
| /dev/xpt0 || XPT Transport Interface || CAM Transport Layer
|}
|}
== Platform Security Processor Core (PSP) (MP0) ==
* See also the [[AMD Platform Security Processor]] wiki page.
* All the fun things related to PS5 security are here.
* Named AMD SMU PSP (AMD System Management Unit Platform Security Processor) and ASP (AMD Secure Processor) as well.


== System Management Unit (SMU) (MP1) ==
== System Management Unit (SMU) (MP1) ==
MP1 (System Management Unit or "SMU") is an xtensa CPU responsible for power management, clock management, sampling sensor data, and other power/thermal-related tasks. The /dev/mp1 device can be used to issue commands to it. Below are known commands.
MP1 (System Management Unit or "SMU") is an xtensa CPU responsible for power management, clock management, sampling sensor data, and other power/thermal-related tasks. The /dev/mp1 device can be used to issue commands to it. Below are known commands.


Line 218: Line 234:
| 0xC00CAE1E || MP1_IOCTL_GET_COREPSTATE || Get core power state?
| 0xC00CAE1E || MP1_IOCTL_GET_COREPSTATE || Get core power state?
|}
|}
== Sensor Fusion Processor (SFP) (MP2) ==
* It does not exist on PS5 as it is mainly for mobiles.


== Trusted Execution Environment (TEE) (MP3) ==
== Trusted Execution Environment (TEE) (MP3) ==
MP3 consists of the Trusted Execution Environment (TEE) running on the AMD Platform Security Processor (PSP/SP). Its primary function is Digital Rights Management (DRM) via [https://www.microsoft.com/playready/features/EnhancedContentProtection.aspx PlayReady SL3000]. In userspace, the libSceTEEClient library is used for interfacing with it, which internally uses /dev/mp3 to load secure binaries (sbins) and establish sessions. Below are known commands.
 
MP3 consists of the Trusted Execution Environment (TEE) running on the [[AMD Platform Security Processor]]. Its primary function is Digital Rights Management (DRM) via [https://www.microsoft.com/playready/features/EnhancedContentProtection.aspx PlayReady SL3000]. In usermode, the libSceTEEClient library is used for interfacing with it, which internally uses /dev/mp3 to load secure binaries (sbins) and establish sessions. Below are known commands.


{| class="wikitable sortable"
{| class="wikitable sortable"
|-
|-
! IOCTL # !! Name !! Notes
! IOCTL # !! Name !! Notes
|-
|0x400CB400
|TEE_IOC_VERSION
| -
|-
|-
| 0xC010B403 || TEE_IOC_INVOKE || Invoke commands
| 0xC010B403 || TEE_IOC_INVOKE || Invoke commands
|-
|0xC010B402
|TEE_IOC_OPEN_SESSION
| -
|-
|0xC008B404
|TEE_IOC_CANCEL
| -
|-
|-
| 0xC010B408 || TEE_IOC_DLM_GET_DEBUG_TOKEN || -
| 0xC010B408 || TEE_IOC_DLM_GET_DEBUG_TOKEN || -
Line 246: Line 279:


== A53MM/A53IO (MP4) ==
== A53MM/A53IO (MP4) ==
MP4, which consists of /dev/a53mm, /dev/a53mmsys, and /dev/a53io, is used for various tasks, and its overall purpose is not fully understood. Some of the things it includes are debugging (mdbg), video encode/decode, and other various memory-management related things. Below are known commands.
MP4, which consists of /dev/a53mm, /dev/a53mmsys, and /dev/a53io, is used for various tasks, and its overall purpose is not fully understood. Some of the things it includes are debugging (mdbg), video encode/decode, and other various memory-management related things. Below are known commands.


'''a53mm'''
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0xC004AC01 || - || -
|-
| 0xC030AC02 || A53MM_GIVE_DIRECT_MEM_TO_MAPPER || -
|-
| 0xC030AC03 || A53MM_CALL_INDIRECT_BUFFER || -
|-
| 0xC050AC05 || A53MM_MAPPER_VIRTUAL_QUERY || -
|-
| 0xC038AC06 || A53MM_GET_PARAM * || -
|-
| 0xC018AC07 || - || -
|-
| 0xC004AC08 || - || -
|-
| 0xC018AC09 || - || -
|-
| 0xC010AC0A || - || -
|-
| 0xC018AC0B || A53MM_MAPPER_QUERY_PA || -
|-
| 0xC004AC0D || A53MM_WAIT_COMMAND_BUFFER_COMPLETION || -
|-
| 0xC018AC0E || A53MM_INTERNAL_LOCK_UNLOCK_MAPPER_MEMORY || -
|-
| 0xC018AC0F || - || -
|-
| 0xC018AC10 || A53MM_GET_USAGE_STATS_DATA || -
|-
| 0xC004AC11 || A53MM_SET_PAGE_TABLE_POOL_OCCUPANCY_THRESHOLD || -
|-
| 0xC018AC12 || A53MM_INTERNAL_TEST_PAGE_MIGRATION || -
|-
| 0xC004AC13 || - || -
|}
'''a53mmsys'''
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0xc020b501 || A53MMSYS_INTERNAL_LOCK_UNLOCK_MAPPER_MEMORY || -
|-
| 0xc028b502 || - || -
|-
| 0xc050b503 || - || -
|-
| 0xc010b504 || - || -
|-
| 0xc028b505 || A53MMSYS_MAPPER_GET_INDIRECT_BUFFER_INFO || -
|-
| 0xc020b506 || - || -
|-
| 0xc018b507 || - || -
|-
| 0xc018b508 || A53MMSYS_DEBUG_MAPPER_QUERY_DMEM_OFFSET || -
|-
| 0xc020b50a || - || -
|-
| 0xc010b50b || A53MMSYS_DEBUG_GET_AMPR_COUNTER_INFO || -
|}
'''a53io'''
{| class="wikitable sortable"
{| class="wikitable sortable"
|-
|-
! IOCTL # !! Name !! Notes
! IOCTL # !! Name !! Notes
|-
| 0x80046101 || NAND_A53IO_OPEN || Exposes NAND groups for reading
|-
| 0x80046102 || NAND_A53IO_CLOSE || Closes off NAND groups
|-
| 0x80046103 || NAND_A53IO_SETUP_FLASH_DEVICE || -
|-
| 0x80046104 || NAND_A53IO_DISABLE_CONTROLLER || Disables A53 controller (warning: this will put the console in a bad state)
|-
| 0x80046105 || NAND_A53IO_FORMAT_NVM || Formats NVMe
|-
| 0x80186111 || BFS_A53IO_READ_DEVICE? || -
|-
|-
| 0xC03861A1 || BFS_A53IO_READ_BLOCK || -
| 0xC03861A1 || BFS_A53IO_READ_BLOCK || -
Line 256: Line 369:
| 0xC03861A2 || BFS_A53IO_WRITE_BLOCK || -
| 0xC03861A2 || BFS_A53IO_WRITE_BLOCK || -
|-
|-
| 0xC038AC06 || IOC_A53MM_GET_PARAM || -
| 0xC01061C1 || BFS_A53IO_CREATE_RESERVED_LBA || -
|-
| 0xC01061C2 || BFS_A53IO_DELETE_RESERVED_LBA || -
|-
| 0xC00C61C5 || ???? || Related to delete logical partitions
|-
| 0xC01061C8 || ???? || Related to delete logical partitions
|-
| 0xC02061CA || ???? || Related to delete logical partitions
|}
 
== Backup and Restore ==
 
Backup and Restore (BAR) is used by [[SceShellCore]] via /dev/bar. Below are known commands.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0xC0684201 || BAR_CREATE_CONTEXT || -
|-
| 0xC0684202 || BAR_DESTROY_CONTEXT * || -
|-
| 0xC0684203 || BAR_INIT_CONTEXT || -
|-
| 0xC0684204 || BAR_UPDATE_AAD || -
|-
| 0xC0684205 || BAR_UPDATE_ENCRYPT || -
|-
| 0xC0684206 || BAR_UPDATE_DECRYPT || -
|-
| 0xC0684207 || BAR_FINISH_ENCRYPT || -
|-
| 0xC0684208 || BAR_FINISH_DECRYPT || -
|}
 
== Disc UID ==
 
Disc UID (/dev/duid) has its own library (libSceDiscId). It's unknown what this is used for at present. It has two known [[IOCTL]]s.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0xC0104401 || DISC_ID_GET || -
|-
| 0xC0104402 || DISC_ID_GET2 || -
|}
 
== Dynamic Library Debug ==
 
Dynamic Lib Debug (/dev/dldbg) is used by the library for debugging syscore. Given the name, it's likely used for debugging sprx libs. Below are known commands.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0x80084401 || DLDBG_STOP_ON_DL_LOAD || -
|-
| 0x80084402 || DLDBG_NO_STOP_ON_DL_LOAD || -
|-
| 0xC0084403 || DLDBG_GET_DL_LOAD_FLAG || -
|-
|}
 
== FTTRM ==
 
FTTRM's full purpose is unknown, but it is likely DRM-related. It is used by the Bluray application (BdmvPlayerCore, BdvdPlayerCore, UHDBdPlayerCore) via /dev/fttrm. There are only two known commands.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0xC0185301 || FTTRM_READ_SECTOR || -
|-
| 0xC0185302 || FTTRM_WRITE_SECTOR || -
|}
 
== ICC Floyd (TPM) ==
 
The /dev/icc_floyd is for interacting with the floyd Trusted Platform Module (TPM) over ICC. It only has one known command.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0x400EB701 || ICC_FLOYD_GET_VERSION || -
|-
| 0xC010440E || FLOYD_UPDATE_FW || -
|-
|}
 
== Manufacturer Authorization ==
 
The /dev/manuauth device seems to be for manufacturer authorization or authentication. It is used in various updaters. Below are known commands.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0x40184D01 || MANUAUTH_LOAD_SM || Loads the secure module
|-
| 0x40184D02 || MANUAUTH_UNLOAD_SM || Unloads the secure module
|-
| 0xC0184D03 || MANUAUTH_SET_MANU_MODE || Sets manufacturer mode
|-
|}
 
== Namespace Filesystem Control ==
 
The Namespace Filesystem (NSFS) is used by Virtual Shell (Vsh) and [[SceShellCore]]. It is critical to processes running on the system. Below are known commands.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0xC0406E00 || NSFS_CREATE_REDIRECT || -
|-
| 0xC0406E01 || NSFS_DELETE_REDIRECT || -
|-
| 0xC0186E02 || NSFS_GET_REDIRECT_STATS || -
|-
| 0xC0206E03 || NSFS_ADD_OVERLAY_TO_NAMESPACE || -
|-
| 0xC0186E04 || NSFS_SET_GLOBAL_EXCLUDE || -
|}
 
== PFS Control ==
 
Playstation FileSystem (PFS) Control and /dev/pfsctldev is used internally for VSH. Below are known commands.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0x8030B001 || DEVPFSCTL_FORMAT || -
|-
| 0xC0E0B006 || DEVPFSCTL_GETFSSTAT || -
|-
| 0xC040B008 || DEVPFSCTL_MOUNT || -
|-
| 0xC038B009 || DEVPFSCTL_UNMOUNT || -
|-
| 0xC028B00A || DEVPFSCTL_GETEVENT || -
|-
| 0xC030B00B || DEVPFSCTL_EVENTCOMP || -
|-
| 0xC020B00C || DEVPFSCTL_CANCELEVENT || -
|-
| 0xC020B00D || DEVPFSCTL_REGEVENT || -
|-
| 0xC020B00E || DEVPFSCTL_DEREGEVENT || -
|-
| 0x8004B00F || DEVPFSCTL_SYSPOWEREVENT || -
|-
| 0xC008B074 || DEVPFSCTL_FSCK || -
|}
 
== PFS Manager ==
 
PFS Manager (/dev/pfsmgr) is used by [[SceShellCore]]. It handles trophy related tasks, savedata, and keystone verification. Below are known commands.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0xC1185001 || - || -
|-
| 0xC1185002 || - || -
|-
| 0xC1185003 || - || -
|-
| 0xC4085004 || - || -
|-
| 0x40845301 || - || - trophy related
|-
| 0xC0845302 || - || - savedata related
|-
| 0x40845303 || - || - savedata related
|-
| 0xC0845304 || - || - ???
|-
| 0xC0845305 || - || - ???
|-
| 0xC0A84B01 || - || - ???
|-
| 0xC0A84B02 || PFSMGR_VERIFY_KEYSTONE || -
|}
 
== PUP Updater ==
 
The /dev/pup_update0 device is used to perform firmware updates.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0xC0104401 || PUP_UPDATER_VERIFY_BLS_HEADER || -
|-
| 0xC0184402 || PUP_UPDATER_DECRYPT_HEADER || -
|-
| 0xC0184403 || PUP_UPDATER_VERIFY_ADDITIONAL_SIGN || -
|-
| 0xC0184404 || PUP_UPDATER_VERIFY_WATERMARK || -
|-
| 0xC0184405 || PUP_UPDATER_DECRYPT_SEGMENT || -
|-
| 0xC0284406 || PUP_UPDATER_DECRYPT_SEGMENT_BLOCK || -
|-
| 0x20004407 || PUP_UPDATER_UPDATE_SNVS || -
|-
| 0xC0104408 || PUP_UPDATER_GEN_CHALLENGE || -
|-
| 0xC018440A || PUP_UPDATER_READ_NAND_GROUP || -
|-
| 0xC018440B || PUP_UPDATER_WRITE_NAND_GROUP || -
|-
| 0xC010440C || PUP_UPDATER_IDENTIFY_NAND_CONTROLLER || -
|-
| 0xC004440D || PUP_UPDATER_IS_FW_OPERATIONAL || -
|-
| 0xC010440E || PUP_UPDATER_FLOYD_UPDATE_FW || -
|-
| 0xC001440F || PUP_UPDATER_GET_XTS_KEY_NUM || -
|-
| 0xC0104410 || PUP_UPDATER_VERIFY_RESPONSE || -
|}
 
== Root Param ==
 
Root Param is used by [[SceShellCore]] to verify root PARAM.SFO files (for PS4) or JSON files (for PS5, aka PPR for ProsPeRo). Below are known commands.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0xC0305201 || ROOTPARAM_VERIFY_PS4_ROOT_PARAM || -
|-
| 0xC0305202 || ROOTPARAM_VERIFY_PPR_ROOT_PARAM || -
|-
| 0xC0305203 || ROOTPARAM_RESUME_FROM_STANDBY || -
|}
 
== CAM Transport Layer ==
 
CAM (Common Access Method) storage subsystem provides a method for implementing drivers to control various known storage devices.
Attaches any devices it finds to the appropriate drivers.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0xC4E01902 || - || related to cam_send_ccb
|-
| 0xC4E01903 || CAMGETPASSTHRU || related to cam_lookup_pass
|}
 
== Wireless LAN and Bluetooth ==
 
WLAN and Bluetooth functionality is reachable via /dev/wlanbt. Below are known commands.
 
{| class="wikitable sortable"
|-
! IOCTL # !! Name !! Notes
|-
| 0x40047400 || WLANBT_GET_DEVICE_ID || -
|}
|}

Latest revision as of 19:46, 11 November 2024

The PS5 has many kernel devices that can be accessed through IOCTL. Some of them have usermode module equivalents, some like "sbl" consist in Secure Modules and some like "camera" make use of a dedicated firmware stored in kernel memory.

See also PS4 devices.

Note for ioctls: * indicates name is assumed from RE and may not be accurate.

Device Listing[edit | edit source]

Unique devices are listed here. Benign devices like /dev/null are omitted for brevity's sake.

Path Device Name Notes
/dev/a53{io,mm,mmsys} A53 Input/Output, Memory Management (sys) See MP4 section
/dev/ajm{i} Audio Job Manager -
/dev/auditpipe - -
/dev/authmgr Authentication Manager -
/dev/az{1,ctl} - Audio-related
/dev/bar Backup and Restore Used by shellcore for backup and recovery
/dev/bfs/ctl - -
/dev/bluetooth_hid - -
/dev/bt - -
/dev/camera Camera -
/dev/cloudsd Cloud SaveData -
/dev/console Console Usermode logging
/dev/crepo Crash Report Used for crash reporting service (coredump, gpudump, shellcore)
/dev/ctrlp{_sync} - Used by libScePad (controller)
/dev/dbggc{_control} Debug GPU? -
/dev/deci_coredump Debug Com. Interface (DECI) coredump -
/dev/deci_mp4_ioc DECI I/O Control? -
/dev/deci_mp4_mmc - -
/dev/deci_std{in,out,err} DECI Input/Output/Error -
/dev/deci_tty* DECI Terminals -
/dev/devctl - -
/dev/diag - -
/dev/dipsw Dip Switch -
/dev/dldbg Dynamic Library Debug -
/dev/dmem{0,1,2} - -
/dev/dngl - -
/dev/duid Disc Unique ID -
/dev/encdec EncDec -
/dev/envelope Envelope Format Crypto -
/dev/evlg{0,1} Event Log Intended to be used with read syscall
/dev/exthdd External HDD -
/dev/fcram - -
/dev/fsctrl - -
/dev/fttrm - Used by bluray app
/dev/gbase - -
/dev/gc GPU command -
/dev/geom.ctl - -
/dev/gic - -
/dev/gsched_bds.ctl - -
/dev/hdmi HDMI -
/dev/hid - -
/dev/hmd2_* VR 2? -
/dev/hmd_* VR -
/dev/iccnvs{0,1,2,4,6} ICC_NVS (sectors) Location of Sectors 0, 1, 2, 4 and 6 of sflash0 non volatile storage
/dev/icc_configuration ICC Config -
/dev/icc_crash_report ICC Crash Report -
/dev/icc_device_power ICC Device Power -
/dev/icc_fan ICC Fan -
/dev/icc_floyd ICC TPM? SNVS Storage Device
/dev/icc_indicator ICC LED -
/dev/icc_nvs ICC NVS -
/dev/icc_power ICC Power -
/dev/icc_sc_config ICC Syscon? Config -
/dev/icc_thermal ICC Thermal -
/dev/klog Kernel Log Read syscall on this device can be used to get kernel log if privileged
/dev/kmbp - -
/dev/lvdctl Layered Vnode Device Control -
/dev/lvd{0,1} Layered Vnode Device -
/dev/m2.ctl m.2 NVMe Control? -
/dev/manuauth Manufacturer Auth -
/dev/mbus Event bus -
/dev/mbus_av Event bus (audio video?) -
/dev/md0 Kernel Md0 Main System modules are located here for Kernel (Not System Modules!)
/dev/md2 - -
/dev/mdctl - -
/dev/metadbg - -
/dev/mp1 System Management Unit (SMU) Power management, thermals, etc. (see mp1 section)
/dev/mp3 Trusted Execution Environment (TEE) See mp3 section
/dev/mp4/dump{_for_decid} A53 (mdbg?) See mp4 section
/dev/notification{0-9} Notification -
/dev/npdrm Network Product Digital Rights Management interface -
/dev/nsfsctl Namespace Filesystem (NSFS) Control -
/dev/nsid1.ctl - -
/dev/otpaccess One-Time Programmable Access? -
/dev/pfsctldev Playstation Filesystem (PFS) Control -
/dev/pfsmgr PFS Manager Used for trophies, savegames, keystone
/dev/playgo_emu_param{1,2,3} PlayGo emulator params -
/dev/pltauth{0,1} Platform Authentication (PSN) -
/dev/pup_update0 PUP Update -
/dev/qafutkn QA flag / Utoken -
/dev/rnps React Native PS PSN related
/dev/rootparam Root Param Used by shellcore for verifying root param sfo/json
/dev/s3da 3D Audio -
/dev/sbl_secreg SBL Secure Region -
/dev/sbl_srv SBL Service Used exclusively by playready
/dev/scanin - -
/dev/sce_zlib{_sys} zlib zlib (de)compression
/dev/sc_fw_update0 (syscon?) firmware update -
/dev/sflash0 SPI flash 2MB. Has EMC firmware and (non-secure) NVS.
/dev/srtc Secure Real Time Clock -
/dev/ssd0.* Internal SSD partitions -
/dev/sshot Screenshot -
/dev/transactionid.ctl - -
/dev/ufssuspend - -
/dev/usbctl USB control -
/dev/uvd_{dec/enc/bgt} Unified Video Decoder? -
/dev/wlanbt Wireless LAN + Bluetooth -
/dev/xpt0 XPT Transport Interface CAM Transport Layer

Platform Security Processor Core (PSP) (MP0)[edit | edit source]

  • See also the AMD Platform Security Processor wiki page.
  • All the fun things related to PS5 security are here.
  • Named AMD SMU PSP (AMD System Management Unit Platform Security Processor) and ASP (AMD Secure Processor) as well.

System Management Unit (SMU) (MP1)[edit | edit source]

MP1 (System Management Unit or "SMU") is an xtensa CPU responsible for power management, clock management, sampling sensor data, and other power/thermal-related tasks. The /dev/mp1 device can be used to issue commands to it. Below are known commands.

IOCTL # Name Notes
0x4068AE01 MP1_IOCTL_GET_CLK Get clock frequency
0x8004AE17 MP1_IOCTL_SET_GFXCLK Set graphics clock frequency
0xC004AE18 MP1_IOCTL_REQUEST_MODE_SWITCH -
0x8008AE1D MP1_IOCTL_SET_COREPSTATE Set core power state?
0xC00CAE1E MP1_IOCTL_GET_COREPSTATE Get core power state?

Sensor Fusion Processor (SFP) (MP2)[edit | edit source]

  • It does not exist on PS5 as it is mainly for mobiles.

Trusted Execution Environment (TEE) (MP3)[edit | edit source]

MP3 consists of the Trusted Execution Environment (TEE) running on the AMD Platform Security Processor. Its primary function is Digital Rights Management (DRM) via PlayReady SL3000. In usermode, the libSceTEEClient library is used for interfacing with it, which internally uses /dev/mp3 to load secure binaries (sbins) and establish sessions. Below are known commands.

IOCTL # Name Notes
0x400CB400 TEE_IOC_VERSION -
0xC010B403 TEE_IOC_INVOKE Invoke commands
0xC010B402 TEE_IOC_OPEN_SESSION -
0xC008B404 TEE_IOC_CANCEL -
0xC010B408 TEE_IOC_DLM_GET_DEBUG_TOKEN -
0xC028B409 TEE_IOC_DLM_START_TA_DEBUG -
0xC110B40A TEE_IOC_DLM_FETCH_DEBUG_STRING -
0x8008B40B TEE_IOC_DLM_STOP_TA_DEBUG -
0x8008B40B TEE_IOC_INIT_ASD -
0xC038B40C TEE_SHM_REGISTER -
0xC004B40E TEE_SHM_RELEASE -
0xC004B40F TEE_SET_TIMEOUT -

A53MM/A53IO (MP4)[edit | edit source]

MP4, which consists of /dev/a53mm, /dev/a53mmsys, and /dev/a53io, is used for various tasks, and its overall purpose is not fully understood. Some of the things it includes are debugging (mdbg), video encode/decode, and other various memory-management related things. Below are known commands.

a53mm

IOCTL # Name Notes
0xC004AC01 - -
0xC030AC02 A53MM_GIVE_DIRECT_MEM_TO_MAPPER -
0xC030AC03 A53MM_CALL_INDIRECT_BUFFER -
0xC050AC05 A53MM_MAPPER_VIRTUAL_QUERY -
0xC038AC06 A53MM_GET_PARAM * -
0xC018AC07 - -
0xC004AC08 - -
0xC018AC09 - -
0xC010AC0A - -
0xC018AC0B A53MM_MAPPER_QUERY_PA -
0xC004AC0D A53MM_WAIT_COMMAND_BUFFER_COMPLETION -
0xC018AC0E A53MM_INTERNAL_LOCK_UNLOCK_MAPPER_MEMORY -
0xC018AC0F - -
0xC018AC10 A53MM_GET_USAGE_STATS_DATA -
0xC004AC11 A53MM_SET_PAGE_TABLE_POOL_OCCUPANCY_THRESHOLD -
0xC018AC12 A53MM_INTERNAL_TEST_PAGE_MIGRATION -
0xC004AC13 - -

a53mmsys

IOCTL # Name Notes
0xc020b501 A53MMSYS_INTERNAL_LOCK_UNLOCK_MAPPER_MEMORY -
0xc028b502 - -
0xc050b503 - -
0xc010b504 - -
0xc028b505 A53MMSYS_MAPPER_GET_INDIRECT_BUFFER_INFO -
0xc020b506 - -
0xc018b507 - -
0xc018b508 A53MMSYS_DEBUG_MAPPER_QUERY_DMEM_OFFSET -
0xc020b50a - -
0xc010b50b A53MMSYS_DEBUG_GET_AMPR_COUNTER_INFO -

a53io

IOCTL # Name Notes
0x80046101 NAND_A53IO_OPEN Exposes NAND groups for reading
0x80046102 NAND_A53IO_CLOSE Closes off NAND groups
0x80046103 NAND_A53IO_SETUP_FLASH_DEVICE -
0x80046104 NAND_A53IO_DISABLE_CONTROLLER Disables A53 controller (warning: this will put the console in a bad state)
0x80046105 NAND_A53IO_FORMAT_NVM Formats NVMe
0x80186111 BFS_A53IO_READ_DEVICE? -
0xC03861A1 BFS_A53IO_READ_BLOCK -
0xC03861A2 BFS_A53IO_WRITE_BLOCK -
0xC01061C1 BFS_A53IO_CREATE_RESERVED_LBA -
0xC01061C2 BFS_A53IO_DELETE_RESERVED_LBA -
0xC00C61C5 ???? Related to delete logical partitions
0xC01061C8 ???? Related to delete logical partitions
0xC02061CA ???? Related to delete logical partitions

Backup and Restore[edit | edit source]

Backup and Restore (BAR) is used by SceShellCore via /dev/bar. Below are known commands.

IOCTL # Name Notes
0xC0684201 BAR_CREATE_CONTEXT -
0xC0684202 BAR_DESTROY_CONTEXT * -
0xC0684203 BAR_INIT_CONTEXT -
0xC0684204 BAR_UPDATE_AAD -
0xC0684205 BAR_UPDATE_ENCRYPT -
0xC0684206 BAR_UPDATE_DECRYPT -
0xC0684207 BAR_FINISH_ENCRYPT -
0xC0684208 BAR_FINISH_DECRYPT -

Disc UID[edit | edit source]

Disc UID (/dev/duid) has its own library (libSceDiscId). It's unknown what this is used for at present. It has two known IOCTLs.

IOCTL # Name Notes
0xC0104401 DISC_ID_GET -
0xC0104402 DISC_ID_GET2 -

Dynamic Library Debug[edit | edit source]

Dynamic Lib Debug (/dev/dldbg) is used by the library for debugging syscore. Given the name, it's likely used for debugging sprx libs. Below are known commands.

IOCTL # Name Notes
0x80084401 DLDBG_STOP_ON_DL_LOAD -
0x80084402 DLDBG_NO_STOP_ON_DL_LOAD -
0xC0084403 DLDBG_GET_DL_LOAD_FLAG -

FTTRM[edit | edit source]

FTTRM's full purpose is unknown, but it is likely DRM-related. It is used by the Bluray application (BdmvPlayerCore, BdvdPlayerCore, UHDBdPlayerCore) via /dev/fttrm. There are only two known commands.

IOCTL # Name Notes
0xC0185301 FTTRM_READ_SECTOR -
0xC0185302 FTTRM_WRITE_SECTOR -

ICC Floyd (TPM)[edit | edit source]

The /dev/icc_floyd is for interacting with the floyd Trusted Platform Module (TPM) over ICC. It only has one known command.

IOCTL # Name Notes
0x400EB701 ICC_FLOYD_GET_VERSION -
0xC010440E FLOYD_UPDATE_FW -

Manufacturer Authorization[edit | edit source]

The /dev/manuauth device seems to be for manufacturer authorization or authentication. It is used in various updaters. Below are known commands.

IOCTL # Name Notes
0x40184D01 MANUAUTH_LOAD_SM Loads the secure module
0x40184D02 MANUAUTH_UNLOAD_SM Unloads the secure module
0xC0184D03 MANUAUTH_SET_MANU_MODE Sets manufacturer mode

Namespace Filesystem Control[edit | edit source]

The Namespace Filesystem (NSFS) is used by Virtual Shell (Vsh) and SceShellCore. It is critical to processes running on the system. Below are known commands.

IOCTL # Name Notes
0xC0406E00 NSFS_CREATE_REDIRECT -
0xC0406E01 NSFS_DELETE_REDIRECT -
0xC0186E02 NSFS_GET_REDIRECT_STATS -
0xC0206E03 NSFS_ADD_OVERLAY_TO_NAMESPACE -
0xC0186E04 NSFS_SET_GLOBAL_EXCLUDE -

PFS Control[edit | edit source]

Playstation FileSystem (PFS) Control and /dev/pfsctldev is used internally for VSH. Below are known commands.

IOCTL # Name Notes
0x8030B001 DEVPFSCTL_FORMAT -
0xC0E0B006 DEVPFSCTL_GETFSSTAT -
0xC040B008 DEVPFSCTL_MOUNT -
0xC038B009 DEVPFSCTL_UNMOUNT -
0xC028B00A DEVPFSCTL_GETEVENT -
0xC030B00B DEVPFSCTL_EVENTCOMP -
0xC020B00C DEVPFSCTL_CANCELEVENT -
0xC020B00D DEVPFSCTL_REGEVENT -
0xC020B00E DEVPFSCTL_DEREGEVENT -
0x8004B00F DEVPFSCTL_SYSPOWEREVENT -
0xC008B074 DEVPFSCTL_FSCK -

PFS Manager[edit | edit source]

PFS Manager (/dev/pfsmgr) is used by SceShellCore. It handles trophy related tasks, savedata, and keystone verification. Below are known commands.

IOCTL # Name Notes
0xC1185001 - -
0xC1185002 - -
0xC1185003 - -
0xC4085004 - -
0x40845301 - - trophy related
0xC0845302 - - savedata related
0x40845303 - - savedata related
0xC0845304 - - ???
0xC0845305 - - ???
0xC0A84B01 - - ???
0xC0A84B02 PFSMGR_VERIFY_KEYSTONE -

PUP Updater[edit | edit source]

The /dev/pup_update0 device is used to perform firmware updates.

IOCTL # Name Notes
0xC0104401 PUP_UPDATER_VERIFY_BLS_HEADER -
0xC0184402 PUP_UPDATER_DECRYPT_HEADER -
0xC0184403 PUP_UPDATER_VERIFY_ADDITIONAL_SIGN -
0xC0184404 PUP_UPDATER_VERIFY_WATERMARK -
0xC0184405 PUP_UPDATER_DECRYPT_SEGMENT -
0xC0284406 PUP_UPDATER_DECRYPT_SEGMENT_BLOCK -
0x20004407 PUP_UPDATER_UPDATE_SNVS -
0xC0104408 PUP_UPDATER_GEN_CHALLENGE -
0xC018440A PUP_UPDATER_READ_NAND_GROUP -
0xC018440B PUP_UPDATER_WRITE_NAND_GROUP -
0xC010440C PUP_UPDATER_IDENTIFY_NAND_CONTROLLER -
0xC004440D PUP_UPDATER_IS_FW_OPERATIONAL -
0xC010440E PUP_UPDATER_FLOYD_UPDATE_FW -
0xC001440F PUP_UPDATER_GET_XTS_KEY_NUM -
0xC0104410 PUP_UPDATER_VERIFY_RESPONSE -

Root Param[edit | edit source]

Root Param is used by SceShellCore to verify root PARAM.SFO files (for PS4) or JSON files (for PS5, aka PPR for ProsPeRo). Below are known commands.

IOCTL # Name Notes
0xC0305201 ROOTPARAM_VERIFY_PS4_ROOT_PARAM -
0xC0305202 ROOTPARAM_VERIFY_PPR_ROOT_PARAM -
0xC0305203 ROOTPARAM_RESUME_FROM_STANDBY -

CAM Transport Layer[edit | edit source]

CAM (Common Access Method) storage subsystem provides a method for implementing drivers to control various known storage devices. Attaches any devices it finds to the appropriate drivers.

IOCTL # Name Notes
0xC4E01902 - related to cam_send_ccb
0xC4E01903 CAMGETPASSTHRU related to cam_lookup_pass

Wireless LAN and Bluetooth[edit | edit source]

WLAN and Bluetooth functionality is reachable via /dev/wlanbt. Below are known commands.

IOCTL # Name Notes
0x40047400 WLANBT_GET_DEVICE_ID -
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