LOONGARCH_CSR_PERFCNTR1
#define read_csr_perfcntr1() csr_read64(LOONGARCH_CSR_PERFCNTR1)
#define write_csr_perfcntr1(val) csr_write64(val, LOONGARCH_CSR_PERFCNTR1)
set_gcsr_sw_flag(LOONGARCH_CSR_PERFCNTR1);
kvm_save_hw_gcsr(csr, LOONGARCH_CSR_PERFCNTR1);
kvm_restore_hw_gcsr(csr, LOONGARCH_CSR_PERFCNTR1);
csr_write(0, LOONGARCH_CSR_PERFCNTR1);
cnt[1] = csr_read(LOONGARCH_CSR_PERFCNTR1);