HGATP_VMID
hgatp |= (READ_ONCE(k->vmid.vmid) << HGATP_VMID_SHIFT) & HGATP_VMID;
csr_write(CSR_HGATP, (kvm_riscv_gstage_mode << HGATP_MODE_SHIFT) | HGATP_VMID);
vmid_bits = (vmid_bits & HGATP_VMID) >> HGATP_VMID_SHIFT;