Statements (27)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Model-Specific Register
|
| gptkbp:architecture |
x86
x86-64 |
| gptkbp:bitField |
FFXSR (Fast FXSAVE/FXRSTOR Enable)
LMA (Long Mode Active) LME (Long Mode Enable) LMSLE (Long Mode Segment Limit Enable) NXE (No-Execute Enable) SCE (System Call Extensions) SVME (Secure Virtual Machine Enable) |
| gptkbp:category |
CPU control register
|
| gptkbp:documentedIn |
gptkb:AMD64_Architecture_Programmer’s_Manual
gptkb:Intel_SDM_Volume_3 |
| gptkbp:fullName |
IA-32 Extended Feature Enable Register
|
| https://www.w3.org/2000/01/rdf-schema#label |
IA32 EFER MSR
|
| gptkbp:introducedIn |
gptkb:Pentium_Pro
|
| gptkbp:MSRAddress |
0xC0000080
|
| gptkbp:readBy |
privileged code
|
| gptkbp:usedBy |
Operating systems
Hypervisors |
| gptkbp:usedFor |
Enabling 64-bit mode
Enabling NX bit Enabling SYSCALL/SYSRET instructions |
| gptkbp:width |
64 bits
|
| gptkbp:writableBy |
privileged code
|
| gptkbp:bfsParent |
gptkb:SYSCALL/SYSRET_instructions
|
| gptkbp:bfsLayer |
8
|