Struct x86_64::registers::segmentation::GS

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pub struct GS;
Expand description

GS Segment

Only base is used in 64-bit mode, see Segment64. In kernel-mode, the GS base often points to a per-cpu kernel data structure.

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impl GS

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pub unsafe fn swap()

Swap KernelGsBase MSR and GsBase MSR.

Safety

This function is unsafe because the caller must ensure that the swap operation cannot lead to undefined behavior.

Trait Implementations§

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impl Debug for GS

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Segment for GS

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fn get_reg() -> SegmentSelector

Returns the current value of the segment register.
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unsafe fn set_reg(sel: SegmentSelector)

Reload the segment register. Depending on the segment, this may also reconfigure the corresponding segment. Read more
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impl Segment64 for GS

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const BASE: Msr = GsBase::MSR

MSR containing the segment base. This MSR can be used to set the base when CR4.FSGSBASE is not set.
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fn read_base() -> VirtAddr

Reads the segment base address Read more
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unsafe fn write_base(base: VirtAddr)

Writes the segment base address Read more

Auto Trait Implementations§

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impl RefUnwindSafe for GS

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impl Send for GS

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impl Sync for GS

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impl Unpin for GS

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impl UnwindSafe for GS

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.