amd64: barely boot into kernel code

1 files changed, 17 insertions, 0 deletions

diff --git a/src/kernel/arch/amd64/32/gdt.h b/src/kernel/arch/amd64/32/gdt.h
new file mode 100644
index 0000000..fbaf681
--- /dev/null
+++ b/src/kernel/arch/amd64/32/gdt.h
@@ -0,0 +1,17 @@
+#pragma once
+
+enum {
+	SEG_null,
+	// order dictated by SYSENTER
+	SEG_r0code,
+	SEG_r0data,
+	SEG_r3code,
+	SEG_r3data,
+	SEG_TSS,
+	SEG_TSS2,
+
+	SEG_end
+};
+
+void gdt_init(void);
+void gdt_farjump(int segment);