hyperlight_guest::gdt

Struct GdtEntry

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#[repr(C, align(8))]
pub struct GdtEntry { /* private fields */ }
Expand description

Entry in the Global Descriptor Table (GDT) For reference, see page 3-10 Vol. 3A of Intel 64 and IA-32 Architectures Software Developer’s Manual, figure 3-8 (https://i.imgur.com/1i9xUmx.png). From the bottom, we have:

  • segment limit 15..0 = limit_low
  • base address 31..16 = base_low
  • base 23..16 = base_middle
  • p dpl s type 15..8 = access
  • p d/b l avl seg. limit 23..16 = flags_limit
  • base 31..24 = base_high

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impl GdtEntry

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pub const fn new(base: u32, limit: u32, access: u8, flags: u8) -> Self

Creates a new GDT entry.

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

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