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Correct GDT entries for user descriptors #142

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Merged
DeanoBurrito merged 1 commit into from
Feb 16, 2026
Merged

Correct GDT entries for user descriptors #142

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4 changes: 2 additions & 2 deletions 02_Architecture/04_GDT.md
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Original file line number Diff line number Diff line change
Expand Up @@ -233,10 +233,10 @@ Most of this descriptor is unchanged, except for the type field. Bit 4 is cleare

```c
uint64_t user_code = kernel_code | (3 << 13);
gdt_entries[3] = user_code;
gdt_entries[3] = user_code << 32;

uint64_t user_data = kernel_data | (3 << 13);
gdt_entries[4] = user_data;
gdt_entries[4] = user_data << 32;
```

A more complex example of a GDT is the one used by the stivale2 boot protocol:
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