Memory budget

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A memory budget is an area of memory reserved by the system for a specific usage.


Here is a list of default budgets. They are allocated on boot by SceProcessmgr. They vary per FW version, and per boot flags.

Name Base paddr Size Comments
ScePhyMemPartGameCdram 0x20000000 / 0x21000000 (0.995 internal) 112MiB cdram for game
ScePhyMemPartShellCdram 0x27000000 / 0x20000000 (0.995 internal) 16MiB cdram for shell
ScePhyMemPartKD 0x40200000 / 0x40300000 (0.995 internal) 36MiB / 32MiB (0.995 internal) for kernel drivers
ScePhyMemPartPhyCont 0x42600000 / 0x42300000 (0.995 internal) 26MiB physically continuous memory
ScePhyMemPartShared 0x44000000 / 0x43D00000 (0.995 internal) 8MiB for shared modules
ScePhyMemPartGameCDialog 0x44800000 / 0x44500000 (0.995 internal) 9MiB for game cdialog
ScePhyMemPartShell 0x45100000 / 0x44E00000 (0.995 internal) 50MiB / 48MiB (0.995 internal) for shell
ScePhyMemPartShellDummy 0x78000000 128MiB If have dipsw 0xD2, setting this memory.
ScePhyMemPartReserved 0x47E00000 (0.995 internal) 6MiB (0.995 internal) reserved
Remaining memory (for Game +109MiB mode and system) 0x48300000 / 0x48400000 (0.995 internal) 125MiB / 124MiB (0.995 internal) Remaining memory for GAME.
ScePhyMemPartGame 0x50000000 256MiB
512MiB (0.995 internal)
512MiB on devkit and have dipsw 0x80.
for game
ScePhyMemPartGameDummy 0x60000000 256MiB If not have dipsw 0x80, setting this memory.
ScePhyMemPartTool 0x70000000 (0.995 internal) 256MiB (0.995 internal) for TOOL platforms