From 9cff7866d58bfd48cad3f32882b957499c06a649 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Sun, 19 May 2024 22:37:00 -0400
Subject: kernel: Add reboot() and reboot syscall

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 sys/kern/kern_reboot.c  | 51 +++++++++++++++++++++++++++++++++++++++++++++++++
 sys/kern/kern_syscall.c |  4 +++-
 2 files changed, 54 insertions(+), 1 deletion(-)
 create mode 100644 sys/kern/kern_reboot.c

(limited to 'sys/kern')

diff --git a/sys/kern/kern_reboot.c b/sys/kern/kern_reboot.c
new file mode 100644
index 0000000..8f7c400
--- /dev/null
+++ b/sys/kern/kern_reboot.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/reboot.h>
+#include <sys/panic.h>
+#include <sys/cdefs.h>
+#include <sys/machdep.h>
+
+int
+reboot(int type)
+{
+    __TRY_CALL(cpu_reset);
+
+    /* Should be unreachable if the reboot works */
+    return -1;
+}
+
+/*
+ * Arg0: Type
+ */
+uint64_t
+sys_reboot(struct syscall_args *args)
+{
+    return reboot(args->arg0);
+}
diff --git a/sys/kern/kern_syscall.c b/sys/kern/kern_syscall.c
index 9faa5af..35185ea 100644
--- a/sys/kern/kern_syscall.c
+++ b/sys/kern/kern_syscall.c
@@ -34,6 +34,7 @@
 #include <sys/filedesc.h>
 #include <sys/system.h>
 #include <sys/exec.h>
+#include <sys/reboot.h>
 #include <sys/vfs.h>
 #include <vm/map.h>
 
@@ -48,5 +49,6 @@ uint64_t(*g_syscall_table[__MAX_SYSCALLS])(struct syscall_args *args) = {
     sys_munmap,
     sys_ioctl,
     sys_execv,
-    sys_mount
+    sys_mount,
+    sys_reboot
 };
-- 
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