1 files changed, 33 insertions, 0 deletions
diff --git a/arch/x86/um/sys_call_table_64.c b/arch/x86/um/sys_call_table_64.c
new file mode 100644
index 000000000..b0b4cfd23
--- /dev/null
+++ b/arch/x86/um/sys_call_table_64.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * System call table for UML/x86-64, copied from arch/x86/kernel/syscall_*.c
+ * with some changes for UML.
+ */
+
+#include <linux/linkage.h>
+#include <linux/sys.h>
+#include <linux/cache.h>
+#include <asm/syscall.h>
+
+/*
+ * Below you can see, in terms of #define's, the differences between the x86-64
+ * and the UML syscall table.
+ */
+
+/* Not going to be implemented by UML, since we have no hardware. */
+#define sys_iopl sys_ni_syscall
+#define sys_ioperm sys_ni_syscall
+
+#define __SYSCALL(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
+#include <asm/syscalls_64.h>
+
+#undef __SYSCALL
+#define __SYSCALL(nr, sym) sym,
+
+extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
+
+const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
+#include <asm/syscalls_64.h>
+};
+
+int syscall_table_size = sizeof(sys_call_table);