On Wed, 2007-07-11 at 13:46 +0200, Christian Borntraeger wrote:
> Am Mittwoch, 11. Juli 2007 schrieb Rusty Russell:
> > There will be some internal limit on how many buffers the virtio
> > implementation supports, but depends on that implementation. It could
> > be a number of buffers or a total number of descriptors.
>
> I would suggest to implement a limit in the device driver as well. Otherwise
> the network driver could allocate a huge amount of guest memory if the virtio
> implementation accepts a large amount of buffers. This memory is not
> swappable
> and reclaimable by the memory management, so we should be careful.
Hi Christian,
I this this would be premature, but easy enough to do later if we have
such a high-limit virtio implementation. If we did do it, it would
make sense to have it a variable passed into the net driver.
Thanks,
Rusty.
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