[cmdline] Add "reboot" command

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/arch/i386/hci/commands/reboot_cmd.c

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <realmode.h>
+#include <ipxe/command.h>
+#include <ipxe/parseopt.h>
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/** @file
+ *
+ * Reboot command
+ *
+ */
+
+/** "reboot" options */
+struct reboot_options {};
+
+/** "reboot" option list */
+static struct option_descriptor reboot_opts[] = {};
+
+/** "reboot" command descriptor */
+static struct command_descriptor reboot_cmd =
+	COMMAND_DESC ( struct reboot_options, reboot_opts, 0, 0, "", "" );
+
+/**
+ * The "reboot" command
+ *
+ * @v argc		Argument count
+ * @v argv		Argument list
+ * @ret rc		Return status code
+ */
+static int reboot_exec ( int argc, char **argv ) {
+	struct reboot_options opts;
+	int rc;
+
+	/* Parse options */
+	if ( ( rc = parse_options ( argc, argv, &reboot_cmd, &opts ) ) != 0 )
+		return rc;
+
+	/* Reboot system */
+	__asm__ __volatile__ ( REAL_CODE ( "ljmp $0xf000, $0xfff0" ) : : );
+
+	return 0;
+}
+
+/** "reboot" command */
+struct command reboot_command __command = {
+	.name = "reboot",
+	.exec = reboot_exec,
+};

src/config/config.c

@@ -237,6 +237,9 @@ REQUIRE_OBJECT ( lotest_cmd );
 #ifdef VLAN_CMD
 REQUIRE_OBJECT ( vlan_cmd );
 #endif
+#ifdef REBOOT_CMD
+REQUIRE_OBJECT ( reboot_cmd );
+#endif
 
 /*
  * Drag in miscellaneous objects

src/config/general.h

@@ -125,6 +125,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #undef	LOTEST_CMD		/* Loopback testing commands */
 #undef	VLAN_CMD		/* VLAN commands */
 #undef	PXE_CMD			/* PXE commands */
+#undef	REBOOT_CMD		/* Reboot command */
 
 /*
  * Error message tables to include