Difference between revisions of "Memory Management"
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(Created page with "= How The Kernel Allocates And Tracks Memory = == HeapChunkHeader == Size : 0xC bytes {| class="wikitable" border="1" |- ! Offset ! Type ! Description |- | 0x0 | u32 | Size ...") |
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| Line 25: | Line 25: | ||
| − | == | + | == RegionData == |
Size : 0x10 bytes | Size : 0x10 bytes | ||
| Line 50: | Line 50: | ||
| u32 | | u32 | ||
| Region size | | Region size | ||
| + | |} | ||
| + | |||
| + | |||
| + | == FCRAM Region Data == | ||
| + | |||
| + | Size : 0x10 bytes | ||
| + | |||
| + | {| class="wikitable" border="1" | ||
| + | |- | ||
| + | ! Offset | ||
| + | ! Type | ||
| + | ! Description | ||
| + | |- | ||
| + | | 0x0 | ||
| + | | RegionData | ||
| + | | RegionData for app memory | ||
| + | |- | ||
| + | | 0x10 | ||
| + | | RegionData | ||
| + | | RegionData for sys memory | ||
| + | |- | ||
| + | | 0x20 | ||
| + | | RegionData | ||
| + | | RegionData for base memory | ||
| + | |- | ||
| + | | 0x30 | ||
| + | | u32 | ||
| + | | Ptr to start of FCRAM region config | ||
| + | |- | ||
| + | | 0x34 | ||
| + | | u32 | ||
| + | | FCRAM start | ||
| + | |- | ||
| + | | 0x38 | ||
| + | | u32 | ||
| + | | FCRAM size in pages | ||
| + | |- | ||
| + | | 0x3C | ||
| + | | u32 | ||
| + | | Base mem start in FCRAM | ||
| + | |- | ||
| + | | 0x40 | ||
| + | | u32 | ||
| + | | Physical FCRAM memory used by the kernel- used by GetSystemInfo | ||
| + | |- | ||
| + | | 0x44 | ||
| + | | u32 | ||
| + | | ? | ||
| + | |- | ||
| + | | 0x48 | ||
| + | | KThread* | ||
| + | | Thread operating on region data | ||
| + | |- | ||
| + | | 0x4C | ||
| + | | s16 | ||
| + | | Error info for thread listed above | ||
|} | |} | ||
Revision as of 18:47, 11 October 2015
How The Kernel Allocates And Tracks Memory
HeapChunkHeader
Size : 0xC bytes
| Offset | Type | Description |
|---|---|---|
| 0x0 | u32 | Size in pages |
| 0x4 | HeapChunkHeader* | Next |
| 0x8 | HeapChunkHeader* | Prev |
RegionData
Size : 0x10 bytes
| Offset | Type | Description |
|---|---|---|
| 0x0 | HeapChunkHeader* | |
| 0x4 | HeapChunkHeader* | |
| 0x8 | u32 | Region start |
| 0xC | u32 | Region size |
FCRAM Region Data
Size : 0x10 bytes
| Offset | Type | Description |
|---|---|---|
| 0x0 | RegionData | RegionData for app memory |
| 0x10 | RegionData | RegionData for sys memory |
| 0x20 | RegionData | RegionData for base memory |
| 0x30 | u32 | Ptr to start of FCRAM region config |
| 0x34 | u32 | FCRAM start |
| 0x38 | u32 | FCRAM size in pages |
| 0x3C | u32 | Base mem start in FCRAM |
| 0x40 | u32 | Physical FCRAM memory used by the kernel- used by GetSystemInfo |
| 0x44 | u32 | ? |
| 0x48 | KThread* | Thread operating on region data |
| 0x4C | s16 | Error info for thread listed above |