RE: [Xen-devel] [PATCH] add SMEP support to HVM guest

["Li, Xin" <xin.li@xxxxxxxxx>]

>>/* Modifying CR4.{PSE,PAE,PGE} invalidates all TLB entries, inc. Global. */
>>- if ( (old_cr ^ value) & (X86_CR4_PSE | X86_CR4_PGE | X86_CR4_PAE) ) {
>>+ if ( (old_cr ^ value) & (X86_CR4_PSE | X86_CR4_PGE |
>>+ X86_CR4_PAE | X86_CR4_SMEP) ) {
>
>Not having access to the specification - why?

Intel SDM just got updated, you can find it @:
http://www.intel.com/products/processor/manuals/

>Perhaps rather "!(pfec & PFEC_user_mode)"?
>Same here.
You're right!  Thanks for pointing out!
-Xin

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