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posts/06-double-faults/index: fixup deprecated fn

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The code segment from the example uses the newer function whilst the
text segment refers to the old/deprecated `set_cs` fn. Let's fix that.

Signed-off-by: Wilfred Mallawa <vindulawilfred@gmail.com>
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Wilfred Mallawa
2023-05-04 14:51:45 +10:00
committed by Wilfred Mallawa
parent 5baf50a5b4
commit e6b507e6d2
1 changed files with 2 additions and 2 deletions
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blog/content/edition-2/posts/06-double-faults/index.md
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@@ -374,9 +374,9 @@ pub fn init() {
} }
``` ```
We reload the code segment register using [`set_cs`] and load the TSS using [`load_tss`]. The functions are marked as `unsafe`, so we need an `unsafe` block to invoke them. The reason is that it might be possible to break memory safety by loading invalid selectors. We reload the code segment register using [`CS::set_reg`] and load the TSS using [`load_tss`]. The functions are marked as `unsafe`, so we need an `unsafe` block to invoke them. The reason is that it might be possible to break memory safety by loading invalid selectors.
[`set_cs`]: https://docs.rs/x86_64/0.14.2/x86_64/instructions/segmentation/fn.set_cs.html [`CS::set_reg`]: https://docs.rs/x86_64/0.14.5/x86_64/instructions/segmentation/struct.CS.html#method.set_reg
[`load_tss`]: https://docs.rs/x86_64/0.14.2/x86_64/instructions/tables/fn.load_tss.html [`load_tss`]: https://docs.rs/x86_64/0.14.2/x86_64/instructions/tables/fn.load_tss.html
Now that we have loaded a valid TSS and interrupt stack table, we can set the stack index for our double fault handler in the IDT: Now that we have loaded a valid TSS and interrupt stack table, we can set the stack index for our double fault handler in the IDT: