Some CSR registers like CRMD/PRMD are saved during enter VM mode. However they are not restored for actual use, saving for these CSR registers can be removed. Signed-off-by: Bibo Mao <maobibo@xxxxxxxxxxx> --- arch/loongarch/kvm/switch.S | 6 ------ 1 file changed, 6 deletions(-) diff --git a/arch/loongarch/kvm/switch.S b/arch/loongarch/kvm/switch.S index 0ed9040307b7..905b90de50e8 100644 --- a/arch/loongarch/kvm/switch.S +++ b/arch/loongarch/kvm/switch.S @@ -213,12 +213,6 @@ SYM_FUNC_START(kvm_enter_guest) /* Save host GPRs */ kvm_save_host_gpr a2 - /* Save host CRMD, PRMD to stack */ - csrrd a3, LOONGARCH_CSR_CRMD - st.d a3, a2, PT_CRMD - csrrd a3, LOONGARCH_CSR_PRMD - st.d a3, a2, PT_PRMD - addi.d a2, a1, KVM_VCPU_ARCH st.d sp, a2, KVM_ARCH_HSP st.d tp, a2, KVM_ARCH_HTP base-commit: de927f6c0b07d9e698416c5b287c521b07694cac -- 2.39.3
