boot/paging: assert that long mode active is set after enable_paging

karlek · May 25, 2022 · c0a85cb · karlek · May 26, 2022 · mewmew
1 parent 5b2cf08
commit c0a85cb
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/boot/paging_32.zig b/src/boot/paging_32.zig
@@ -178,4 +178,7 @@ export fn enable_paging() void {
     var cr0_value = zasm.Cr0.read();
     cr0_value.paging = true; // 1 << 31
     cr0_value.write();
+
+    // Assert that long mode is active.
+    std.debug.assert(zasm.Efer.read().long_mode_active);
 }