From 2f2e5b43d2985abd504ecd5672ce783bef904f2f Mon Sep 17 00:00:00 2001 From: Ada Christine Date: Mon, 17 Jan 2022 12:22:30 +0000 Subject: preparing for multitasking --- kc/core/cpu/msr.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 kc/core/cpu/msr.h (limited to 'kc/core/cpu/msr.h') 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 + +#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); + -- cgit v1.3.1-1-g115d