diff --git a/qemu/target/riscv/csr.c b/qemu/target/riscv/csr.c
index 3346dbef..2b4f65f3 100644
--- a/qemu/target/riscv/csr.c
+++ b/qemu/target/riscv/csr.c
@@ -734,7 +734,9 @@ static int write_satp(CPURISCVState *env, int csrno, target_ulong val)
         if (env->priv == PRV_S && get_field(env->mstatus, MSTATUS_TVM)) {
             return -1;
         } else {
-            tlb_flush(CPU(riscv_env_get_cpu(env)));
+            if((val ^ env->satp) & SATP_ASID) {
+                tlb_flush(CPU(riscv_env_get_cpu(env)));
+            }
             env->satp = val;
         }
     }