1 files changed, 15 insertions, 0 deletions
diff --git a/kc/core/cpu/msr.h b/kc/core/cpu/msr.h
new file mode 100644
index 0000000..a5014da
--- /dev/null
+++ b/kc/core/cpu/msr.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <stdint.h>
+
+#define EFER_SCE 1
+
+#define MSR_EFER 0xc0000080
+#define MSR_STAR 0xc0000081
+#define MSR_LSTAR 0xc0000082
+#define MSR_CSTAR 0xc0000083
+#define MSR_SFMASK 0xc0000084
+
+uint64_t msr_read(uint32_t index);
+void msr_write(uint32_t index, uint64_t value);
+