tree 57c870353bbb93da102e8e26deb7128357523280
parent 81b8eebbc3511bfa21520314b07988a875a4d066
author Xiao Guangrong <guangrong.xiao@linux.intel.com> 1438747464 +0800
committer Paolo Bonzini <pbonzini@redhat.com> 1438771644 +0200

KVM: MMU: introduce the framework to check zero bits on sptes

We have abstracted the data struct and functions which are used to check
reserved bit on guest page tables, now we extend the logic to check
zero bits on shadow page tables

The zero bits on sptes include not only reserved bits on hardware but also
the bits that SPTEs willnever use.  For example, shadow pages will never
use GB pages unless the guest uses them too.

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>