diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-12-09 13:23:08 -0400 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2023-01-11 16:27:17 -0400 |
| commit | efc30a8f15a7981737297f9e9c62fb814d74e268 (patch) | |
| tree | 1019afe595e6de5dfe75e44266321c0ce204af5b /include/linux/iommu.h | |
| parent | 17cde5e601b165174e8a433b550f84f362731164 (diff) | |
iommu: Add iommu_group_has_isolated_msi()
Compute the isolated_msi over all the devices in the IOMMU group because
iommufd and vfio both need to know that the entire group is isolated
before granting access to it.
Link: https://lore.kernel.org/r/2-v3-3313bb5dd3a3+10f11-secure_msi_jgg@nvidia.com
Tested-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'include/linux/iommu.h')
| -rw-r--r-- | include/linux/iommu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 46e1347bfa22..9b7a9fa5ad28 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -455,6 +455,7 @@ static inline const struct iommu_ops *dev_iommu_ops(struct device *dev) extern int bus_iommu_probe(struct bus_type *bus); extern bool iommu_present(struct bus_type *bus); extern bool device_iommu_capable(struct device *dev, enum iommu_cap cap); +extern bool iommu_group_has_isolated_msi(struct iommu_group *group); extern struct iommu_domain *iommu_domain_alloc(struct bus_type *bus); extern struct iommu_group *iommu_group_get_by_id(int id); extern void iommu_domain_free(struct iommu_domain *domain); |