vhost: reduce memory footprint when IOMMU is disabled #43
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If an application does not request IOMMU support, we can avoid allocating a IOMMU pool. This saves 112kB (IOTLB_CACHE_SIZE * sizeof(struct vhost_iotlb_entry)) per vq. Signed-off-by: David Marchand <david.marchand@redhat.com> Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
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If an application does not request IOMMU support, we can avoid allocating a IOMMU pool.
This saves 112kB (IOTLB_CACHE_SIZE * sizeof(struct vhost_iotlb_entry)) per vq.
Reviewed-by: Chenbo Xia chenbo.xia@intel.com