LOONGARCH_CSR_KS1
#define read_gcsr_kscratch1() gcsr_read(LOONGARCH_CSR_KS1)
#define write_gcsr_kscratch1(val) gcsr_write(val, LOONGARCH_CSR_KS1)
#define EXCEPTION_KS1 LOONGARCH_CSR_KS1
set_gcsr_hw_flag(LOONGARCH_CSR_KS1);
kvm_restore_hw_gcsr(csr, LOONGARCH_CSR_KS1);
kvm_save_hw_gcsr(csr, LOONGARCH_CSR_KS1);
loongarch_set_csr(vcpu, LOONGARCH_CSR_KS1, val);