From b0d31cb43f5a8d1c3da574b2b957e3b0e98b3067 Mon Sep 17 00:00:00 2001
From: Haryslee <lihao189@huawei.com>
Date: Mon, 20 Dec 2021 11:42:20 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8Dxts=E6=9D=83=E9=99=90?=
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用例异常时出现Domain fault或者unknown fault，经分析发现是TLB缓存一致性问题，
在缺页异常入口，对上述两种异常类型做异常地址TLB缓存清理即可。

close #I3ZJ1D

Signed-off-by: Haryslee <lihao189@huawei.com>
Change-Id: Ib84e3e87047fcac392b83a4cf6cca0d91754e66f
---
 arch/arm/arm/src/los_arch_mmu.c | 2 +-
 arch/arm/arm/src/los_exc.c      | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/arm/src/los_arch_mmu.c b/arch/arm/arm/src/los_arch_mmu.c
index 43703c57..30fbbf7d 100644
--- a/arch/arm/arm/src/los_arch_mmu.c
+++ b/arch/arm/arm/src/los_arch_mmu.c
@@ -790,7 +790,7 @@ STATUS_T LOS_ArchMmuDestroy(LosArchMmu *archMmu)
         LOS_PhysPageFree(page);
     }
 
-    OsArmWriteTlbiasid(archMmu->asid);
+    OsArmWriteTlbiasidis(archMmu->asid);
     OsFreeAsid(archMmu->asid);
 #endif
     (VOID)LOS_MuxDestroy(&archMmu->mtx);
diff --git a/arch/arm/arm/src/los_exc.c b/arch/arm/arm/src/los_exc.c
index ed575a85..06fbb423 100644
--- a/arch/arm/arm/src/los_exc.c
+++ b/arch/arm/arm/src/los_exc.c
@@ -228,7 +228,8 @@ UINT32 OsArmSharedPageFault(UINT32 excType, ExcContext *frame, UINT32 far, UINT3
             break;
         }
         default:
-            ret = LOS_ERRNO_VM_NOT_FOUND;
+            OsArmWriteTlbimvaais(ROUNDDOWN(far, PAGE_SIZE));
+            ret = LOS_OK;
             break;
     }
 #if defined(LOSCFG_KERNEL_SMP) && defined(LOSCFG_DEBUG_VERSION)
-- 
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