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void syscall_setup_cpu(void)
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void syscall_setup_cpu(void)
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{
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{
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    extern void sysenter_handler(void);
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    extern void sysenter_handler(void);
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    /* set kernel mode CS selector */
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    /* set kernel mode CS selector */
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    write_msr(IA32_MSR_SYSENTER_CS, selector(KTEXT_DES));
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    write_msr(IA32_MSR_SYSENTER_CS, gdtselector(KTEXT_DES));
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    /* set kernel mode entry point */
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    /* set kernel mode entry point */
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    write_msr(IA32_MSR_SYSENTER_EIP, (uint32_t) sysenter_handler);
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    write_msr(IA32_MSR_SYSENTER_EIP, (uint32_t) sysenter_handler);
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}
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}
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/** @}
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/** @}