interrupts: Fix context switching to U-mode from S-mode

This ensures that kernel code never gets skipped or otherwise messed with. The first switch to U-mode is handled explicitly elsewhere by manually calling process.switchTo on the init process.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/process.zig b/src/process.zig
index 5cec65f..690f4f3 100644
--- a/src/process.zig
+++ b/src/process.zig
@@ -167,6 +167,7 @@ pub fn demo(allocator: std.mem.Allocator) !void {
     list.prepend(proc_node);
 
     try time.interruptInMillis(null, schedule_interval_millis);
+    try switchTo(&proc_node.data);
 
     while (true) asm volatile ("wfi");
 }