x86: kvm: mmu: make spte mmio mask more explicit
Specify both a mask (i.e., bits to consider) and a value (i.e., pattern of bits that indicates a special PTE) for mmio SPTEs. On Intel, this lets us pack even more information into the (SPTE_SPECIAL_MASK | EPT_VMX_RWX_MASK) mask we use for access tracking liberating all (SPTE_SPECIAL_MASK | (non-misconfigured-RWX)) values. Signed-off-by: NPeter Feiner <pfeiner@google.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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