On Fri, Mar 5, 2021 at 11:11 AM Jason Wang <jasowang@xxxxxxxxxx> wrote: > > > On 2021/3/4 4:19 下午, Yongji Xie wrote: > > On Thu, Mar 4, 2021 at 3:30 PM Jason Wang <jasowang@xxxxxxxxxx> wrote: > >> > >> On 2021/2/23 7:50 下午, Xie Yongji wrote: > >>> Add a parameter for the ioctl VDUSE_INJECT_VQ_IRQ to support > >>> injecting virtqueue's interrupt to the specified cpu. > >> > >> How userspace know which CPU is this irq for? It looks to me we need to > >> do it at different level. > >> > >> E.g introduce some API in sys to allow admin to tune for that. > >> > >> But I think we can do that in antoher patch on top of this series. > >> > > OK. I will think more about it. > > > It should be soemthing like > /sys/class/vduse/$dev_name/vq/0/irq_affinity. Also need to make sure > eventfd could not be reused. > Looks like we doesn't use eventfd now. Do you mean we need to use eventfd in this case? Thanks, Yongji
