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8f529046a9
I'm a tabs guy. I like tabs, it's an elegant way to represent indentation instead of brute-forcing it. But I have to admit that the world seems to be going towards spaces, and tooling tends not to play nice with tabs. So here we go, changing the whole repo to spaces since I'm getting tired of all the inconsistent formatting.
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
#pragma once
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/// \file msr.h
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/// Routines and definitions for dealing with Model-Specific Registers
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#include <stdint.h>
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enum class msr : uint32_t
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{
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ia32_mtrrcap = 0x000000fe,
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ia32_mtrrdeftype = 0x000002ff,
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ia32_mtrrphysbase = 0x00000200,
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ia32_mtrrphysmask = 0x00000201,
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ia32_mtrrfix64k_00000 = 0x00000250,
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ia32_mtrrfix16k_80000 = 0x00000258,
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ia32_mtrrfix16k_a0000 = 0x00000259,
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ia32_mtrrfix4k_c0000 = 0x00000268,
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ia32_mtrrfix4k_c8000 = 0x00000269,
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ia32_mtrrfix4k_d0000 = 0x0000026A,
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ia32_mtrrfix4k_d8000 = 0x0000026B,
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ia32_mtrrfix4k_e0000 = 0x0000026C,
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ia32_mtrrfix4k_e8000 = 0x0000026D,
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ia32_mtrrfix4k_f0000 = 0x0000026E,
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ia32_mtrrfix4k_f8000 = 0x0000026F,
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ia32_pat = 0x00000277,
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ia32_efer = 0xc0000080,
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ia32_star = 0xc0000081,
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ia32_lstar = 0xc0000082,
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ia32_fmask = 0xc0000084,
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ia32_gs_base = 0xc0000101,
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ia32_kernel_gs_base = 0xc0000102
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};
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/// Find the msr for MTRR physical base or mask
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msr find_mtrr(msr type, unsigned index);
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/// Read the value of a MSR
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/// \arg addr The MSR address
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/// \returns The current value of the MSR
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uint64_t rdmsr(msr addr);
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/// Write to a MSR
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/// \arg addr The MSR address
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/// \arg value The value to write
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void wrmsr(msr addr, uint64_t value);
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