add tss

1 files changed, 31 insertions, 0 deletions

diff --git a/kernel/cpu/tss.h b/kernel/cpu/tss.h
new file mode 100644
index 0000000..f17b619
--- /dev/null
+++ b/kernel/cpu/tss.h
@@ -0,0 +1,31 @@
+/**
+ * @file tss.h
+ *
+ * @author Freya Murphy <freya@freyacat.org>
+ *
+ * TSS functions
+ */
+
+#ifndef TSS_H_
+#define TSS_H_
+
+#define TSS_REMAP_OFFSET 0x20
+
+#include <stdint.h>
+
+/**
+ * Load the TSS selector
+ */
+void tss_init(void);
+
+/**
+ * Flush the tss
+ */
+void tss_flush(void);
+
+/**
+ * Set the kernel stack pointer in the tss
+ */
+void tss_set_stack(uint64_t stack);
+
+#endif /* tss.h */