On Tue, Sep 15, 2020 at 09:29:34AM +0100, Paul Durrant wrote: > From: Paul Durrant <pdurr...@amazon.com> > > This patch avoids calling iommu_iotlb_flush() for each individual GNTTABOP and > instead calls iommu_iotlb_flush_all() at the end of a batch. This should mean > non-singleton map/unmap operations perform better. > > NOTE: A batch is the number of operations done before a pre-emption check and, > in the case of unmap, a TLB flush. > > Suggested-by: Jan Beulich <jbeul...@suse.com> > Signed-off-by: Paul Durrant <pdurr...@amazon.com> > Reviewed-by: Jan Beulich <jbeul...@suse.com>
Reviewed-by: Wei Liu <w...@xen.org>
