diff --git a/include/sys/io.h b/include/sys/io.h
new file mode 100644
index 0000000..1f4d1a3
--- /dev/null
+++ b/include/sys/io.h
@@ -0,0 +1,2 @@
+int ioperm(unsigned long, unsigned long, int);
+int iopl(int);
diff --git a/src/linux/ioperm.c b/src/linux/ioperm.c
new file mode 100644
index 0000000..6d6d383
--- /dev/null
+++ b/src/linux/ioperm.c
@@ -0,0 +1,6 @@
+#include "syscall.h"
+
+int ioperm(unsigned long from, unsigned long num, int turn_on)
+{
+	return syscall(SYS_ioperm, from, num, turn_on);
+}
diff --git a/src/linux/iopl.c b/src/linux/iopl.c
new file mode 100644
index 0000000..7fc9102
--- /dev/null
+++ b/src/linux/iopl.c
@@ -0,0 +1,6 @@
+#include "syscall.h"
+
+int iopl(int level)
+{
+	return syscall(SYS_iopl, level);
+}