On Thu, Sep 24, 2015 at 02:37:32PM +0800, Baoquan He wrote:
> Copy command buffer and event buffer from the old to kdump kernel.
>
> Still there are 2 problems:
> 1) Not very sure if this is necessary. If do not copy the old command
> buffer, and
> only set the newly allocated command buffer, is there anything wrong?
No, there is no need to copy command and event buffers. Just make sure
they get re-initialized and flush all iommu caches after setting the new
device table.
Joerg
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
