改进VFIO模块的加载方式，适配高版本内核/sys文件系统中没有enable_unsafe_noiommu_mode选项的情况。v4.4.3-20210520

1 files changed, 3 insertions, 2 deletions

diff --git a/tools/systemd/mrenv-script b/tools/systemd/mrenv-script
index 09afc16..d769ab2 100644
--- a/tools/systemd/mrenv-script
+++ b/tools/systemd/mrenv-script
@@ -93,9 +93,10 @@ function module_unload_vfio_pci()
 
 function module_load_vfio_pci()
 {
-	modprobe vfio_pci
+	modprobe vfio enable_unsafe_noiommu_mode=1
 	[ ! $? -eq 0 ] && echo "failed at modprobe vfio" && return 1
-	echo 1 > /sys/module/vfio/parameters/enable_unsafe_noiommu_mode
+
+	modprobe vfio_pci
 	return $?
 }