Hi Paul, On 15/09/2020 09:29, 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>
Acked-by: Julien Grall <jgr...@amazon.com> Cheers, -- Julien Grall
