platform: support EOI on the native platform

Support EOI by issuing a write to the APIC EOI register. Signed-off-by: Jon Lange <[email protected]>
coconut-svsm · Dec 12, 2024 · e975e4f · e975e4f
1 parent 8b5bc8a
commit e975e4f
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/kernel/src/platform/native.rs b/kernel/src/platform/native.rs
@@ -20,6 +20,7 @@ use crate::utils::MemoryRegion;
 #[cfg(debug_assertions)]
 use crate::mm::virt_to_phys;
 
+const APIC_MSR_EOI: u32 = 0x80B;
 const APIC_MSR_ICR: u32 = 0x830;
 
 #[derive(Clone, Copy, Debug)]
@@ -152,7 +153,7 @@ impl SvsmPlatform for NativePlatform {
     }
 
     fn eoi(&self) {
-        todo!();
+        write_msr(APIC_MSR_EOI, 0);
     }
 
     fn is_external_interrupt(&self, _vector: usize) -> bool {