Re: Re: [PATCH v6 09/10] vduse: Introduce VDUSE - vDPA Device in Userspace

[Yongji Xie <xieyongji@xxxxxxxxxxxxx>]

On Fri, Apr 16, 2021 at 11:24 AM Jason Wang <jasowang@xxxxxxxxxx> wrote:
>
>
> 在 2021/3/31 下午4:05, Xie Yongji 写道:
> > +     }
> > +     case VDUSE_INJECT_VQ_IRQ:
> > +             ret = -EINVAL;
> > +             if (arg >= dev->vq_num)
> > +                     break;
> > +
> > +             ret = 0;
> > +             queue_work(vduse_irq_wq, &dev->vqs[arg].inject);
> > +             break;
>
>
> One additional note:
>
> Please use array_index_nospec() for all vqs[idx] access where idx is
> under the control of userspace to avoid potential spectre exploitation.
>

OK, I see.

Thanks,
Yongji