Subversion Repositories HelenOS

Rev

Rev 3535 | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 3535 Rev 4346
Line 42... Line 42...
42 
void syscall_setup_cpu(void)
 42 
void syscall_setup_cpu(void)
43 
{
 43 
{
44 
    extern void sysenter_handler(void);
 44 
    extern void sysenter_handler(void);
45 
 
 45 
 
46 
    /* set kernel mode CS selector */
 46 
    /* set kernel mode CS selector */
47 
    write_msr(IA32_MSR_SYSENTER_CS, selector(KTEXT_DES));
 47 
    write_msr(IA32_MSR_SYSENTER_CS, gdtselector(KTEXT_DES));
48 
    /* set kernel mode entry point */
 48 
    /* set kernel mode entry point */
49 
    write_msr(IA32_MSR_SYSENTER_EIP, (uint32_t) sysenter_handler);
 49 
    write_msr(IA32_MSR_SYSENTER_EIP, (uint32_t) sysenter_handler);
50 
}
 50 
}
51 
 
 51 
 
52 
/** @}
 52 
/** @}