fix(apic): disable I/O APIC interrupt 0 for Firecracker

Signed-off-by: Martin Kröning <[email protected]>
hermit-os · Nov 19, 2024 · b3e1145 · b3e1145
1 parent fc2493f
commit b3e1145
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/arch/x86_64/kernel/apic.rs b/src/arch/x86_64/kernel/apic.rs
@@ -544,8 +544,9 @@ fn init_ioapic() {
 
 	// now lets turn everything else on
 	for i in 0..max_entry {
-		// now, we don't longer need the IOAPIC timer and turn it off
-		let enabled = i != 2;
+		// now, we don't longer need the IOAPIC timer (2) and  and turn it off
+		// We also turn off number 0 for Firecracker
+		let enabled = !matches!(i, 0 | 2);
 		ioapic_set_interrupt(i, 0, enabled);
 	}
 }