KVM: Add instruction fetch checking when walking guest page table
KVM: Add instruction fetch checking when walking guest page table

This patch adds instruction fetch checking when walking guest page table,
to implement SMEP when emulating instead of executing natively.

Signed-off-by: Yang, Wei <4e8aac3707a8d36ce02b3f78170ca8f0b0352d73@intel.com>
Signed-off-by: Shan, Haitao <b2c57c6cac3162388f39d8ef583c43ae4c39b86d@intel.com>
Signed-off-by: Li, Xin <839dcfacf023c2e3008e88a79a2cd06041865aef@intel.com>
Signed-off-by: Avi Kivity <8f920f22884d6fea9df883843c4a8095a2e5ac6f@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas