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Update x86_64 to version 0.5.2

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This is required for the upcomping _Paging Implementation_ post.
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Philipp Oppermann
2019-03-12 17:47:58 +01:00
parent 0b6564895e
commit ddbe36c0dc
6 changed files with 40 additions and 40 deletions
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6
blog/content/second-edition/posts/07-double-faults/index.md
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@@ -223,7 +223,7 @@ The _Privilege Stack Table_ is used by the CPU when the privilege level changes.
### Creating a TSS
Let's create a new TSS that contains a separate double fault stack in its interrupt stack table. For that we need a TSS struct. Fortunately, the `x86_64` crate already contains a [`TaskStateSegment` struct] that we can use.
[`TaskStateSegment` struct]: https://docs.rs/x86_64/0.5.0/x86_64/structures/tss/struct.TaskStateSegment.html
[`TaskStateSegment` struct]: https://docs.rs/x86_64/0.5.2/x86_64/structures/tss/struct.TaskStateSegment.html
We create the TSS in a new `gdt` module (the name will make sense later):
@@ -376,8 +376,8 @@ pub fn init() {
We reload the code segment register using [`set_cs`] and to 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_64/0.5.0/x86_64/instructions/segmentation/fn.set_cs.html
[`load_tss`]: https://docs.rs/x86_64/0.5.0/x86_64/instructions/tables/fn.load_tss.html
[`set_cs`]: https://docs.rs/x86_64/0.5.2/x86_64/instructions/segmentation/fn.set_cs.html
[`load_tss`]: https://docs.rs/x86_64/0.5.2/x86_64/instructions/tables/fn.load_tss.html
Now that we loaded a valid TSS and interrupt stack table, we can set the stack index for our double fault handler in the IDT: