Improve multi_core support

2017-12-05 21:26:45 -07:00
parent cd54352f47
commit c2644adf3d
7 changed files with 41 additions and 27 deletions
@@ -231,11 +231,13 @@ impl Context {
    pub fn unblock(&mut self) -> bool {
        if self.status == Status::Blocked {
            self.status = Status::Runnable;
-            if let Some(cpu_id) = self.cpu_id {
-                if cpu_id != ::cpu_id() {
-                    // Send IPI if not on current CPU
-                    // TODO: Make this more architecture independent
-                    unsafe { device::local_apic::LOCAL_APIC.ipi(cpu_id) };
+            if cfg!(feature = "multi_core") {
+                if let Some(cpu_id) = self.cpu_id {
+                    if cpu_id != ::cpu_id() {
+                        // Send IPI if not on current CPU
+                        // TODO: Make this more architecture independent
+                        unsafe { device::local_apic::LOCAL_APIC.set_icr(3 << 18 | 1 << 14 | 0x40) };
+                    }
                }
            }
            true