Commit b062007c authored by Jason Gunthorpe's avatar Jason Gunthorpe
Browse files

iommu: Remove IOMMU_CAP_INTR_REMAP 

No iommu driver implements this any more, get rid of it.

Link: https://lore.kernel.org/r/9-v3-3313bb5dd3a3+10f11-secure_msi_jgg@nvidia.com


Tested-by: default avatarMatthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Reviewed-by: default avatarLu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent bf210f79

drivers/iommu/iommu.c

+2 −4
Original line number Diff line number Diff line
@@ -1914,10 +1914,8 @@ bool iommu_group_has_isolated_msi(struct iommu_group *group) 
	bool ret = true;



	mutex_lock(&group->mutex);

	list_for_each_entry(group_dev, &group->devices, list) {

		ret &= msi_device_has_isolated_msi(group_dev->dev) ||

		       device_iommu_capable(group_dev->dev, IOMMU_CAP_INTR_REMAP);

	}

	list_for_each_entry(group_dev, &group->devices, list)

		ret &= msi_device_has_isolated_msi(group_dev->dev);

	mutex_unlock(&group->mutex);

	return ret;

}

include/linux/iommu.h

+0 −1
Original line number Diff line number Diff line
@@ -120,7 +120,6 @@ static inline bool iommu_is_dma_domain(struct iommu_domain *domain) 


enum iommu_cap {

	IOMMU_CAP_CACHE_COHERENCY,	/* IOMMU_CACHE is supported */

	IOMMU_CAP_INTR_REMAP,		/* IOMMU supports interrupt isolation */

	IOMMU_CAP_NOEXEC,		/* IOMMU_NOEXEC flag */

	IOMMU_CAP_PRE_BOOT_PROTECTION,	/* Firmware says it used the IOMMU for

					   DMA protection and we should too */