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cr4 definition
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| union __cr4_t | |
| { | |
| unsigned __int64 control; | |
| struct | |
| { | |
| unsigned __int64 vme : 1; // bit 0 | |
| unsigned __int64 pvi : 1; // bit 1 | |
| unsigned __int64 time_stamp_disable : 1; // bit 2 | |
| unsigned __int64 debug_extensions : 1; // bit 3 | |
| unsigned __int64 page_size_extension : 1; // bit 4 | |
| unsigned __int64 physical_address_extension : 1; // bit 5 | |
| unsigned __int64 machine_check_enable : 1; // bit 6 | |
| unsigned __int64 page_global_enable : 1; // bit 7 | |
| unsigned __int64 perf_counter_enable : 1; // bit 8 | |
| unsigned __int64 os_fxsave_support : 1; // bit 9 | |
| unsigned __int64 os_xmm_exception_support : 1; // bit 10 | |
| unsigned __int64 usermode_execution_prevention : 1; // bit 11 | |
| unsigned __int64 reserved_0 : 1; // bit 12 | |
| unsigned __int64 vmx_enable : 1; // bit 13 | |
| unsigned __int64 smx_enable : 1; // bit 14 | |
| unsigned __int64 reserved_1 : 1; // bit 15 | |
| unsigned __int64 fs_gs_enable : 1; // bit 16 | |
| unsigned __int64 pcide : 1; // bit 17 | |
| unsigned __int64 os_xsave : 1; // bit 18 | |
| unsigned __int64 reserved_2 : 1; // bit 19 | |
| unsigned __int64 smep : 1; // bit 20 | |
| unsigned __int64 smap : 1; // bit 21 | |
| unsigned __int64 protection_key_enable : 1; // bit 22 | |
| } bits; | |
| }; |
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