Initial work on paging, also complete ish interrupt registration

2026-05-08 11:40:51 +02:00
parent aa5ce32dce
commit c68d3fab14
11 changed files with 456 additions and 18 deletions
--- a/x86_drivers/src/idt/vectors.rs
+++ b/x86_drivers/src/idt/vectors.rs
@@ -0,0 +1,73 @@
+use crate::idt::{
+    DPL, Error, Gate, GdtSelector, ISR, ISRWithIdx, ISRWithIdxNeverReturns, Idt, IdtTableEntry, Ist,
+};
+
+macro_rules! vector {
+    ($(
+    $(~$idx_:literal)?
+    $($idx:literal: $name:ident => $type:ty)?
+    );*) => {
+        pub trait Vector {
+            type FunctionSignature;
+            const IDX:usize;
+            fn register_handler<const REGISTERD:bool>(table:&mut Idt<REGISTERD>, isr: Self::FunctionSignature, selector: GdtSelector, ist: Ist, gate: Gate, priority: DPL) -> Result<&mut Idt<REGISTERD>,Error>;
+        }
+
+        pub mod named_isr  {
+            $(
+                $(pub struct $name;)?
+            )*
+        }
+
+        $(
+            $(
+            impl Vector for named_isr::$name {
+                type FunctionSignature = $type;
+                const IDX:usize = $idx;
+
+                fn register_handler<const REGISTERD:bool>(table:&mut Idt<REGISTERD>, isr: Self::FunctionSignature, selector: GdtSelector, ist: Ist, gate: Gate, priority: DPL) -> Result<&mut Idt<REGISTERD>,Error> {
+                    let offset = (isr as *const ()) as u64;
+                    let desc = IdtTableEntry::build(offset, selector, ist, gate, priority);
+                    table.register_handler(Self::IDX, desc)
+                }
+            }
+            )?
+
+        )*
+    }
+}
+
+vector!(
+    0: DivisionError => ISR;
+    1: Debug => ISR;
+    2: NonMaskableInterrupt => ISR;
+    3: Breakpoint => ISR;
+    4: Overflow => ISR;
+    5: BoundRangeExceeded => ISR;
+    6: InvalidOpcode => ISR;
+    7: DeviceNotAvailable => ISR;
+    8: DoubleFault => ISRWithIdxNeverReturns;
+    9: CoprocessorSegmentOverrun => ISR;
+    10: InvalidTSS => ISRWithIdx;
+    11: SegmentNotPresent => ISRWithIdx;
+    12: StackSegmentFault => ISRWithIdx;
+    13: GeneralProtectionFault => ISRWithIdx;
+    14: PageFault => ISRWithIdx;
+    ~15;
+    16: X87FloatingPointException => ISR;
+    17: AlignmentCheck => ISRWithIdx;
+    18: MachineCheck => ISR;
+    19: SIMDFloatingPointException => ISR;
+    20: VirtualizationException => ISR;
+    21: ControlProtectionException => ISRWithIdx;
+    ~22;
+    ~23;
+    ~24;
+    ~25;
+    ~26;
+    ~27;
+    28: HypervisorInjectionException => ISR;
+    29: VMMCommunicationException => ISRWithIdx;
+    30: SecurityException => ISRWithIdx;
+    ~31;
+);