aboutsummaryrefslogtreecommitdiff
path: root/sys
diff options
context:
space:
mode:
Diffstat (limited to 'sys')
-rw-r--r--sys/arch/amd64/amd64/machdep.c9
-rw-r--r--sys/include/sys/machdep.h1
-rw-r--r--sys/include/sys/reboot.h45
-rw-r--r--sys/include/sys/syscall.h1
-rw-r--r--sys/kern/kern_reboot.c51
-rw-r--r--sys/kern/kern_syscall.c4
6 files changed, 110 insertions, 1 deletions
diff --git a/sys/arch/amd64/amd64/machdep.c b/sys/arch/amd64/amd64/machdep.c
index 6a24232..34bea11 100644
--- a/sys/arch/amd64/amd64/machdep.c
+++ b/sys/arch/amd64/amd64/machdep.c
@@ -331,6 +331,15 @@ processor_switch_to(struct proc *old_td, struct proc *new_td)
}
void
+cpu_reset(void)
+{
+ for (;;) {
+ /* Pulse the reset line */
+ outb(0x64, 0xFE);
+ }
+}
+
+void
processor_init(void)
{
/* Indicates what doesn't need to be init anymore */
diff --git a/sys/include/sys/machdep.h b/sys/include/sys/machdep.h
index 31385ce..0ecb83e 100644
--- a/sys/include/sys/machdep.h
+++ b/sys/include/sys/machdep.h
@@ -50,6 +50,7 @@ __weak void chips_init(void);
__weak void pre_init(void);
__weak void serial_dbgch(char c);
__weak void cpu_halt_others(void);
+__weak void cpu_reset(void);
#endif /* defined(_KERNEL) */
#endif /* !_SYS_MACHDEP_H_ */
diff --git a/sys/include/sys/reboot.h b/sys/include/sys/reboot.h
new file mode 100644
index 0000000..e09bd4f
--- /dev/null
+++ b/sys/include/sys/reboot.h
@@ -0,0 +1,45 @@
+/*
+ * 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.
+ */
+
+#ifndef _SYS_REBOOT_H_
+#define _SYS_REBOOT_H_
+
+#if defined(_KERNEL)
+#include <sys/syscall.h>
+#endif
+
+#define REBOOT_DEFAULT 0x0000
+
+int reboot(int type);
+
+#if defined(_KERNEL)
+uint64_t sys_reboot(struct syscall_args *args);
+#endif /* defined(_KERNEL) */
+
+#endif /* !_SYS_REBOOT_H_ */
diff --git a/sys/include/sys/syscall.h b/sys/include/sys/syscall.h
index 6a102aa..4ef3666 100644
--- a/sys/include/sys/syscall.h
+++ b/sys/include/sys/syscall.h
@@ -48,6 +48,7 @@ enum {
SYS_ioctl,
SYS_execv,
SYS_mount,
+ SYS_reboot,
__MAX_SYSCALLS
};
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
};