On 2021/6/16 下午10:44, Christoph Hellwig wrote:
On Wed, Jun 16, 2021 at 10:38:02PM +0800, Zhangfei Gao wrote:+++ b/include/linux/iommu.h @@ -87,6 +87,7 @@ struct iommu_domain { void *handler_token; struct iommu_domain_geometry geometry; void *iova_cookie; + int nested;This should probably be a bool : 1; Also this needs a user, so please just queue up a variant of this for the code that eventually relies on this information.
Thanks Christoph Got it, will do this.
