RQF_XINVLTLB
(mycpu->gd_reqflags & (RQF_HVM_MASK & ~RQF_XINVLTLB))
atomic_clear_int(&mycpu->gd_reqflags, RQF_XINVLTLB)
ASSYM(RQF_XINVLTLB, RQF_XINVLTLB);
#define RQF_HVM_MASK (RQF_IDLECHECK_MASK|RQF_AST_MASK|RQF_XINVLTLB)