2f28c167ac
commit 156d70f99a517d8dc467a47d6a8661c3bef56cff Intel-BKC. IOMMUs that support nesting translation needs report the capability info to userspace. It gives information about requirements the userspace needs to implement plus other features characterizing the physical implementation. This patch introduces a new IOMMU UAPI struct that gives information about the nesting capabilities and features. This struct is supposed to be returned by iommu_domain_get_attr() with DOMAIN_ATTR_NESTING attribute parameter, with one domain whose type has been set to DOMAIN_ATTR_NESTING. v7 -> v8: *) add padding in struct iommu_nesting_info_vtd *) describe future extension rules for struct iommu_nesting_info in iommu.rst. *) remove SYSWIDE_PASID v6 -> v7: *) rephrase the commit message, replace the @data[] field in struct iommu_nesting_info with union per comments from Eric Auger. v5 -> v6: *) rephrase the feature notes per comments from Eric Auger. *) rename @size of struct iommu_nesting_info to @argsz. v4 -> v5: *) address comments from Eric Auger. v3 -> v4: *) split the SMMU driver changes to be a separate patch *) move the @addr_width and @pasid_bits from vendor specific part to generic part. *) tweak the description for the @features field of struct iommu_nesting_info. *) add description on the @data[] field of struct iommu_nesting_info v2 -> v3: *) remvoe cap/ecap_mask in iommu_nesting_info. *) reuse DOMAIN_ATTR_NESTING to get nesting info. *) return an empty iommu_nesting_info for SMMU drivers per Jean' suggestion. Cc: Kevin Tian <kevin.tian@intel.com> CC: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Alex Williamson <alex.williamson@redhat.com> Cc: Eric Auger <eric.auger@redhat.com> Cc: Jean-Philippe Brucker <jean-philippe@linaro.org> Cc: Joerg Roedel <joro@8bytes.org> Cc: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Liu Yi L <yi.l.liu@intel.com> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Chen Zhuo <sagazchen@tencent.com> Signed-off-by: Xinghui Li <korantli@tencent.com> |
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| .. | ||
| accelerators | ||
| index.rst | ||
| ioasid.rst | ||
| iommu.rst | ||
| no_new_privs.rst | ||
| seccomp_filter.rst | ||
| spec_ctrl.rst | ||
| unshare.rst | ||