55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
#ifndef _VISOR_MSR_H_
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#define _VISOR_MSR_H_
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#include <stdint.h>
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#define IA32_FEATURE_CONTROL 0x03A
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#define IA32_DEBUGCTL 0x1D9
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#define IA32_PAT 0x277
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#define IA32_VMX_BASIC 0x480
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#define IA32_VMX_PINBASED_CTLS 0x481
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#define IA32_VMX_PROCBASED_CTLS 0x482
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#define IA32_VMX_EXIT_CTLS 0x483
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#define IA32_VMX_ENTRY_CTLS 0x484
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#define IA32_VMX_MISC 0x485
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#define IA32_VMX_CR0_FIXED0 0x486
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#define IA32_VMX_CR0_FIXED1 0x487
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#define IA32_VMX_CR4_FIXED0 0x488
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#define IA32_VMX_CR4_FIXED1 0x489
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#define IA32_VMX_VMCS_ENUM 0x48A
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#define IA32_EFER 0xC0000080
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#define IA32_FS_BASE 0xC0000100
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#define IA32_GS_BASE 0xC0000101
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static inline uint32_t
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readmsr32(uint32_t msr)
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{
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uint32_t value;
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__asm__ ("rdmsr\n\t" : "=a"(value) : "c"(msr) : "edx");
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return value;
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}
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static inline uint64_t
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readmsr64(uint32_t msr)
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{
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uint64_t value;
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__asm__ ("rdmsr\n\t" : "=A"(value) : "c"(msr));
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return value;
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}
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static inline void
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writemsr32(uint32_t msr, uint32_t value)
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{
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uint32_t high = 0;
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__asm__ ("wrmsr\n\t" :: "c"(msr), "a"(value), "d"(high));
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}
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static inline void
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writemsr64(uint32_t msr, uint64_t value)
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{
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__asm__ ("wrmsr\n\t" :: "c"(msr), "A"(value));
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}
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#endif
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