Wei Wang2
2011-Jan-27 14:30 UTC
[Xen-devel] [PATCH 1/3] amd iommu: reduce io page level for hvm guest
Keir, These 3 patches optimize and cleanup amd iommu codes for 4.1. If not too late please add them into the release. Thanks, Wei 1.Since in most case, 2 or 3 - level IO page tables are sufficient, this patch updates page table level for device assignment to reduces overhead of dma translation 2. Clean up amd_iommu_reserve_domain_unity_map function to reduce code duplication. 3. Clean up invalidate_iommu_page function. Make it suitable for variable page sizes and can be reused by invalidate_all_iommu_pages. Signed-off-by: Wei Wang <wei.wang2@amd.com> -- Advanced Micro Devices GmbH Sitz: Dornach, Gemeinde Aschheim, Landkreis München Registergericht München, HRB Nr. 43632 WEEE-Reg-Nr: DE 12919551 Geschäftsführer: Alberto Bozzo, Andrew Bowd _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel