On 19/11/19 09:49, Yang Weijiang wrote: > @@ -228,6 +228,7 @@ > #define X86_FEATURE_FLEXPRIORITY ( 8*32+ 2) /* Intel FlexPriority */ > #define X86_FEATURE_EPT ( 8*32+ 3) /* Intel Extended Page Table */ > #define X86_FEATURE_VPID ( 8*32+ 4) /* Intel Virtual Processor ID */ > +#define X86_FEATURE_SPP ( 8*32+ 5) /* Intel EPT-based Sub-Page Write Protection */ Please do not include X86_FEATURE_SPP. In general I don't like the VMX features word, but apart from that SPP is not a feature that affects all VMs in the same way as EPT or FlexPriority. Paolo
