diff options
Diffstat (limited to 'src/bits32/irq.rs')
| -rw-r--r-- | src/bits32/irq.rs | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/src/bits32/irq.rs b/src/bits32/irq.rs deleted file mode 100644 index bc385ee..0000000 --- a/src/bits32/irq.rs +++ /dev/null @@ -1,58 +0,0 @@ -//! Interrupt description and set-up code. -/* -use ::descriptor::*; -use ::paging::VAddr; -use ::Ring; - -/// An interrupt gate or trap gate descriptor. -/// -/// See Intel manual 3a for details, specifically section 6.11. -#[derive(Debug, Copy, Clone)] -#[repr(C, packed)] -pub struct IdtEntry { - /// Lower 16 bits of ISR. - pub offset_lo: u16, - /// Segment selector. - pub selector: u16, - /// This must always be zero. - pub reserved: u8, - /// flags. - pub struct: Flags, - /// The upper 16 bits of ISR. - pub offset_hi: u16 -} - -impl IdtEntry { - pub const MISSING: IdtEntry = IdtEntry { - offset_lo: 0, - selector: 0, - reserved: 0, - flags: Flags::BLANK, - offset_hi: 0 - }; - - /// Create a new IdtEntry pointing at `handler`, which must be a function - /// with interrupt calling conventions. (This must be currently defined in - /// assembly language.) The `gdt_code_selector` value must be the offset of - /// code segment entry in the GDT. - /// - /// The "Present" flag set, which is the most common case. If you need - /// something else, you can construct it manually. - pub const fn new(handler: VAddr, gdt_code_selector: u16, - dpl: Ring, block: bool) -> IdtEntry { - IdtEntry { - offset_lo: ((handler.as_usize() as u32) & 0xFFFF) as u16, - offset_hi: ((handler.as_usize() as u32 & 0xFFFF0000) >> 16) as u16, - selector: gdt_code_selector, - reserved: 0, - // Nice bitflags operations don't work in const fn, hence these - // ad-hoc methods. - flags: Flags::from_priv(dpl) - .const_or(FLAGS_TYPE_SYS_NATIVE_INTERRUPT_GATE - .const_mux(FLAGS_TYPE_SYS_NATIVE_TRAP_GATE, - block)) - .const_or(FLAGS_PRESENT), - } - } -} -*/
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