Initial commit

code/lapic_write_icr.cpp

@@ -0,0 +1,7 @@
+void LocalApic::writeICR(const ICREntry &icrEntry) {
+    auto val = static_cast<uint64_t>(icrEntry);
+    icrLock.acquire(); // Synchronized in case of multiple APs
+    writeDoubleWord(0x310, val >> 32);
+    writeDoubleWord(0x300, val & 0xFFFFFFFF); // Writing the low DW sends the IPI
+    icrLock.release();
+}