Re: Re: [PATCH v8 09/10] vduse: Introduce VDUSE - vDPA Device in Userspace

On Tue, Jun 22, 2021 at 3:50 PM Jason Wang [off-list ref] wrote:

在 2021/6/22 下午3:22, Yongji Xie 写道:

quoted

quoted

We need fix a way to propagate the error to the userspace.

E.g if we want to stop the deivce, we will delay the status reset until
we get respose from the userspace?

I didn't get how to delay the status reset. And should it be a DoS
that we want to fix if the userspace doesn't give a response forever?

You're right. So let's make set_status() can fail first, then propagate
its failure via VHOST_VDPA_SET_STATUS.

OK. So we only need to propagate the failure in the vhost-vdpa case, right?

Thanks,
Yongji