diff --git a/anolis/cmdline/loongarch64 b/anolis/cmdline/loongarch64
index 2a48fbe19c0d1b41852e0012647654bf5594171c..cc218653e7db69c01fedbb224c076ee0f02f270a 100644
--- a/anolis/cmdline/loongarch64
+++ b/anolis/cmdline/loongarch64
@@ -1,2 +1,3 @@
 cgroup.memory=nokmem
 crashkernel=1024M
+vfio_iommu_type1.allow_unsafe_interrupts=1
diff --git a/drivers/iommu/loongarch_iommu.c b/drivers/iommu/loongarch_iommu.c
index 170a062c074ff1cd852c6148071acfb909016bbb..8c5ba580fc75891b875049508bdac324c51c172c 100644
--- a/drivers/iommu/loongarch_iommu.c
+++ b/drivers/iommu/loongarch_iommu.c
@@ -596,6 +596,7 @@ static struct iommu_domain *la_iommu_domain_alloc(unsigned int type)
 
 	switch (type) {
 	case IOMMU_DOMAIN_BLOCKED:
+	case IOMMU_DOMAIN_IDENTITY:
 	case IOMMU_DOMAIN_UNMANAGED:
 		info = alloc_dom_info();
 		if (info == NULL)
@@ -847,7 +848,9 @@ static int la_iommu_attach_dev(struct iommu_domain *domain, struct device *dev)
 
 	la_iommu_detach_dev(dev);
 
-	if (domain != NULL && domain->type == IOMMU_DOMAIN_BLOCKED)
+	if (domain != NULL &&
+	    (domain->type == IOMMU_DOMAIN_IDENTITY ||
+	     domain->type == IOMMU_DOMAIN_BLOCKED))
 		return 0;
 
 	if (domain == NULL)
@@ -1178,6 +1181,11 @@ static phys_addr_t la_iommu_iova_to_phys(struct iommu_domain *domain,
 	return phys;
 }
 
+static int la_iommu_def_domain_type(struct device *dev)
+{
+	return IOMMU_DOMAIN_IDENTITY;
+}
+
 const struct iommu_ops la_iommu_ops = {
 	.capable = la_iommu_capable,
 	.domain_alloc = la_iommu_domain_alloc,
@@ -1185,6 +1193,7 @@ const struct iommu_ops la_iommu_ops = {
 	.release_device = la_iommu_remove_device,
 	.device_group = la_iommu_device_group,
 	.pgsize_bitmap	= LA_IOMMU_PGSIZE,
+	.def_domain_type = la_iommu_def_domain_type,
 	.owner = THIS_MODULE,
 	.default_domain_ops = &(const struct iommu_domain_ops) {
 		.attach_dev	= la_iommu_attach_dev,