diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
index 405d5c5325..e9ca3aebb2 100644
--- a/hw/arm/smmu-common.c
+++ b/hw/arm/smmu-common.c
@@ -151,7 +151,7 @@ inline void
 smmu_iotlb_inv_iova(SMMUState *s, int asid, dma_addr_t iova,
                     uint8_t tg, uint64_t num_pages, uint8_t ttl)
 {
-    if (ttl && (num_pages == 1)) {
+    if (ttl && (num_pages == 1) && (asid >= 0)) {
         SMMUIOTLBKey key = smmu_get_iotlb_key(asid, iova, tg, ttl);
 
         g_hash_table_remove(s->iotlb, &key);