KVM_STEAL_ALIGNMENT_BITS   52 arch/x86/include/uapi/asm/kvm_para.h #define KVM_STEAL_VALID_BITS ((-1ULL << (KVM_STEAL_ALIGNMENT_BITS + 1)))
KVM_STEAL_ALIGNMENT_BITS   53 arch/x86/include/uapi/asm/kvm_para.h #define KVM_STEAL_RESERVED_MASK (((1 << KVM_STEAL_ALIGNMENT_BITS) - 1 ) << 1)