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 */
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 */
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#ifndef KERN_amd64_CPU_H_
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#ifndef KERN_amd64_CPU_H_
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#define KERN_amd64_CPU_H_
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#define KERN_amd64_CPU_H_
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#define RFLAGS_IF   (1 << 9)
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#define RFLAGS_IF  (1 << 9)
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#define RFLAGS_DF   (1 << 10)
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#define RFLAGS_DF  (1 << 10)
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#define RFLAGS_RF   (1 << 16)
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#define RFLAGS_RF  (1 << 16)
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#define EFER_MSR_NUM    0xc0000080
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#define EFER_MSR_NUM    0xc0000080
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#define AMD_SCE_FLAG    0
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#define AMD_SCE_FLAG    0
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#define AMD_LME_FLAG    8
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#define AMD_LME_FLAG    8
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#define AMD_LMA_FLAG    10
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#define AMD_LMA_FLAG    10
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typedef struct {
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typedef struct {
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    int vendor;
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    int vendor;
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    int family;
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    int family;
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    int model;
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    int model;
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    int stepping;
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    int stepping;
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    struct tss *tss;
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    tss_t *tss;
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    count_t iomapver_copy;  /** Copy of TASK's I/O Permission bitmap generation count. */
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    count_t iomapver_copy;  /** Copy of TASK's I/O Permission bitmap generation count. */
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} cpu_arch_t;
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} cpu_arch_t;
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struct star_msr {
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struct star_msr {
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 - 
 
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};
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};
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struct lstar_msr {
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struct lstar_msr {
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 - 
 
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};
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};
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extern void set_efer_flag(int flag);
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extern void set_efer_flag(int flag);
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extern uint64_t read_efer_flag(void);
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extern uint64_t read_efer_flag(void);
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void cpu_setup_fpu(void);
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void cpu_setup_fpu(void);