RE: [PATCH] example: vdpa: support run in nested virtualization environment

> -Original Message- > From: Hao Chen > Sent: Tuesday, October 11, 2022 10:56 AM > To: maxime.coque...@redhat.com; Xia, Chenbo > Cc: dev@dpdk.org; ho...@yusur.tech; z...@yusur.tech > Subject: [PATCH] example: vdpa: support run in nested virtualization > environ

[PATCH] example: vdpa: support run in nested virtualization environment

When we run dpdk vdpa in the nested virtual machine vm-L1 and ping test in vm-L2, the ping is NG. The reason for troubleshooting is that the virtio net in vm-L2 sends control information to the vring, and the qemu back-end device in vm-L1 cannot obtain correct data from the vring. This problem is r