| commit | 302b4215daa0a704c843da40fd2529e5757a72da | [log] [tgz] |
|---|---|---|
| author | Yu Zhao <yu.zhao@intel.com> | Mon May 18 13:51:32 2009 +0800 |
| committer | David Woodhouse <David.Woodhouse@intel.com> | Mon May 18 11:25:54 2009 +0100 |
| tree | 1bc40108fceafd3fbc9faee38c971fa94d560b13 | |
| parent | dd7264355a203c3456dbba04db471947d3b55e7e [diff] |
PCI: support the ATS capability The PCIe ATS capability makes the Endpoint be able to request the DMA address translation from the IOMMU and cache the translation in the device side, thus alleviate IOMMU pressure and improve the hardware performance in the I/O virtualization environment. Signed-off-by: Yu Zhao <yu.zhao@intel.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>