some tlb instructions get  the tlb_ps from tlb->misc but the
 value may has been initialized to 0,just check the tlb_ps skip
 the function and write a log.

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
---
 target/loongarch/tcg/tlb_helper.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/target/loongarch/tcg/tlb_helper.c b/target/loongarch/tcg/tlb_helper.c
index a323606e5a..112556301f 100644
--- a/target/loongarch/tcg/tlb_helper.c
+++ b/target/loongarch/tcg/tlb_helper.c
@@ -427,7 +427,11 @@ void helper_invtlb_page_asid(CPULoongArchState *env, target_ulong info,
         uint16_t tlb_asid = FIELD_EX64(tlb->tlb_misc, TLB_MISC, ASID);
         uint64_t vpn, tlb_vppn;
         uint8_t tlb_ps, compare_shift;
+        uint8_t tlb_e = FIELD_EX64(tlb->tlb_misc, TLB_MISC, E);
 
+        if (!tlb_e) {
+            continue;
+        }
         if (i >= LOONGARCH_STLB) {
             tlb_ps = FIELD_EX64(tlb->tlb_misc, TLB_MISC, PS);
         } else {
@@ -456,7 +460,11 @@ void helper_invtlb_page_asid_or_g(CPULoongArchState *env,
         uint16_t tlb_asid = FIELD_EX64(tlb->tlb_misc, TLB_MISC, ASID);
         uint64_t vpn, tlb_vppn;
         uint8_t tlb_ps, compare_shift;
+        uint8_t tlb_e = FIELD_EX64(tlb->tlb_misc, TLB_MISC, E);
 
+        if (!tlb_e) {
+            continue;
+        }
         if (i >= LOONGARCH_STLB) {
             tlb_ps = FIELD_EX64(tlb->tlb_misc, TLB_MISC, PS);
         } else {
-- 
2.34.1