Hi Paul, On 15/09/2020 09:29, Paul Durrant wrote:
From: Paul Durrant <[email protected]>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 <[email protected]> Signed-off-by: Paul Durrant <[email protected]> Reviewed-by: Jan Beulich <[email protected]>
Acked-by: Julien Grall <[email protected]> Cheers, -- Julien Grall
