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Revision f7911686


Added by Yang, Wei Y almost 10 years ago

kvm: Enable CPU SMEP feature

This patchset enables a new CPU feature SMEP (Supervisor Mode Execution
Protection) in QEMU-KVM. SMEP prevents kernel from executing code in application.
Updated Intel SDM describes this CPU feature. The document will be published soon.

SMEP is identified by CPUID leaf 7 EBX7, which is 0 before. Get the right value by query KVM kernel module, so that guest can get SMEP through CPUID.

Signed-off-by: Yang, Wei <>
Singed-off-by: Shan, Haitao <>
Singed-off-by: Li, Xin <>

Signed-off-by: Marcelo Tosatti <>


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