Difference between revisions of "Memory Management"
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= How The Kernel Allocates And Tracks Memory = | = How The Kernel Allocates And Tracks Memory = | ||
| − | == | + | == MemoryBlockHeader == |
Size : 0xC bytes | Size : 0xC bytes | ||
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{| class="wikitable" border="1" | {| class="wikitable" border="1" | ||
|- | |- | ||
| − | ! | + | ! Offset |
! Type | ! Type | ||
| − | ! | + | ! Description |
|- | |- | ||
| 0x0 | | 0x0 | ||
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|- | |- | ||
| 0x4 | | 0x4 | ||
| − | | | + | | MemoryBlockHeader* |
| Next | | Next | ||
|- | |- | ||
| 0x8 | | 0x8 | ||
| − | | | + | | MemoryBlockHeader* |
| Prev | | Prev | ||
|} | |} | ||
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|- | |- | ||
| 0x0 | | 0x0 | ||
| − | | | + | | MemoryBlockHeader* |
| | | | ||
|- | |- | ||
| 0x4 | | 0x4 | ||
| − | | | + | | MemoryBlockHeader* |
| | | | ||
|- | |- | ||
Revision as of 06:04, 15 October 2015
How The Kernel Allocates And Tracks Memory
MemoryBlockHeader
Size : 0xC bytes
| Offset | Type | Description |
|---|---|---|
| 0x0 | u32 | Size in pages |
| 0x4 | MemoryBlockHeader* | Next |
| 0x8 | MemoryBlockHeader* | Prev |
RegionData
Size : 0x10 bytes
| Offset | Type | Description |
|---|---|---|
| 0x0 | MemoryBlockHeader* | |
| 0x4 | MemoryBlockHeader* | |
| 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 svcGetSystemInfo |
| 0x44 | u32 | ? |
| 0x48 | KThread* | Thread operating on region data |
| 0x4C | s16 | Error info for thread listed above |