KVM_PTE_ADDR_51_50_LPA2
pa |= FIELD_GET(KVM_PTE_ADDR_51_50_LPA2, pte) << 50;
pte |= FIELD_PREP(KVM_PTE_ADDR_51_50_LPA2, pa >> 50);
addr |= FIELD_GET(KVM_PTE_ADDR_51_50_LPA2, desc) << 50;