diff --git a/8.PVE开启硬件直通功能.md b/8.PVE开启硬件直通功能.md
index 46613e0..f94f33d 100644
--- a/8.PVE开启硬件直通功能.md
+++ b/8.PVE开启硬件直通功能.md
@@ -89,4 +89,37 @@ N5105 处理器示例输出如下：
 [    0.410835] DMAR: dmar0: Using Queued invalidation
 [    0.410838] DMAR: dmar1: Using Queued invalidation
 [    0.412755] DMAR: Intel(R) Virtualization Technology for Directed I/O
+```
+
+检查系统 `IOMMU` 分组：
+
+```bash
+## 检查 IOMMU group
+find /sys/kernel/iommu_groups/ -type l
+```
+
+示例输出如下：
+
+```txt
+/sys/kernel/iommu_groups/7/devices/0000:00:1c.4
+/sys/kernel/iommu_groups/15/devices/0000:04:00.0
+/sys/kernel/iommu_groups/5/devices/0000:00:17.0
+/sys/kernel/iommu_groups/13/devices/0000:02:00.0
+/sys/kernel/iommu_groups/3/devices/0000:00:14.2
+/sys/kernel/iommu_groups/3/devices/0000:00:14.0
+/sys/kernel/iommu_groups/11/devices/0000:00:1f.0
+/sys/kernel/iommu_groups/11/devices/0000:00:1f.5
+/sys/kernel/iommu_groups/11/devices/0000:00:1f.3
+/sys/kernel/iommu_groups/11/devices/0000:00:1f.4
+/sys/kernel/iommu_groups/1/devices/0000:00:02.0
+/sys/kernel/iommu_groups/8/devices/0000:00:1c.5
+/sys/kernel/iommu_groups/16/devices/0000:05:00.0
+/sys/kernel/iommu_groups/6/devices/0000:00:1c.0
+/sys/kernel/iommu_groups/14/devices/0000:03:00.0
+/sys/kernel/iommu_groups/4/devices/0000:00:16.0
+/sys/kernel/iommu_groups/12/devices/0000:01:00.0
+/sys/kernel/iommu_groups/2/devices/0000:00:04.0
+/sys/kernel/iommu_groups/10/devices/0000:00:1c.7
+/sys/kernel/iommu_groups/0/devices/0000:00:00.0
+/sys/kernel/iommu_groups/9/devices/0000:00:1c.6
 ```
\ No newline at end of file