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136467962e
The SVA iommu_domain represents a hardware pagetable that the IOMMU hardware could use for SVA translation. This adds some infrastructures to support SVA domain in the iommu core. It includes: - Extend the iommu_domain to support a new IOMMU_DOMAIN_SVA domain type. The IOMMU drivers that support allocation of the SVA domain should provide its own SVA domain specific iommu_domain_ops. - Add a helper to allocate an SVA domain. The iommu_domain_free() is still used to free an SVA domain. The report_iommu_fault() should be replaced by the new iommu_report_device_fault(). Leave the existing fault handler with the existing users and the newly added SVA members excludes it. Suggested-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Suggested-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Yi Liu <yi.l.liu@intel.com> Tested-by: Zhangfei Gao <zhangfei.gao@linaro.org> Tested-by: Tony Zhu <tony.zhu@intel.com> Link: https://lore.kernel.org/r/20221031005917.45690-7-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de> |
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