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Diffstat (limited to 'arch/arm64/kernel/cpu-reset.h')
-rw-r--r--arch/arm64/kernel/cpu-reset.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm64/kernel/cpu-reset.h b/arch/arm64/kernel/cpu-reset.h
new file mode 100644
index 000000000..d4e9ecb26
--- /dev/null
+++ b/arch/arm64/kernel/cpu-reset.h
@@ -0,0 +1,34 @@
+/*
+ * CPU reset routines
+ *
+ * Copyright (C) 2015 Huawei Futurewei Technologies.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _ARM64_CPU_RESET_H
+#define _ARM64_CPU_RESET_H
+
+#include <asm/virt.h>
+
+void __cpu_soft_restart(unsigned long el2_switch, unsigned long entry,
+ unsigned long arg0, unsigned long arg1, unsigned long arg2);
+
+static inline void __noreturn cpu_soft_restart(unsigned long el2_switch,
+ unsigned long entry, unsigned long arg0, unsigned long arg1,
+ unsigned long arg2)
+{
+ typeof(__cpu_soft_restart) *restart;
+
+ el2_switch = el2_switch && !is_kernel_in_hyp_mode() &&
+ is_hyp_mode_available();
+ restart = (void *)virt_to_phys(__cpu_soft_restart);
+
+ cpu_install_idmap();
+ restart(el2_switch, entry, arg0, arg1, arg2);
+ unreachable();
+}
+
+#endif