Re: [RFC PATCH 2/2] block: virtio-blk: support multi virt queues per virtio-blk device

[Paolo Bonzini]

Il 17/06/2014 17:50, Ming Lei ha scritto:
> > > It would be nice to allocate virtqueues dynamically instead of
> > > hardcoding the limit.  virtio-scsi also allocates virtqueues
> > > dynamically.
> virtio-scsi may have lots of LUN, but virtio-blk only has one disk
> which needn't lots of hardware queues.

If you want to do queue steering based on the guest VCPU number, the 
number of queues must be = to the number of VCPUs shouldn't it?

I tried using a divisor of the number of VCPUs, but couldn't get the 
block layer to deliver interrupts to the right VCPU.

Paolo
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