diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/iommu.h | 13 | ||||
| -rw-r--r-- | include/uapi/linux/vfio.h | 4 |
2 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index ff097df318b9..54b8b48c762e 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -1188,6 +1188,10 @@ void iommu_detach_device_pasid(struct iommu_domain *domain, struct device *dev, ioasid_t pasid); ioasid_t iommu_alloc_global_pasid(struct device *dev); void iommu_free_global_pasid(ioasid_t pasid); + +/* PCI device reset functions */ +int pci_dev_reset_iommu_prepare(struct pci_dev *pdev); +void pci_dev_reset_iommu_done(struct pci_dev *pdev); #else /* CONFIG_IOMMU_API */ struct iommu_ops {}; @@ -1511,6 +1515,15 @@ static inline ioasid_t iommu_alloc_global_pasid(struct device *dev) } static inline void iommu_free_global_pasid(ioasid_t pasid) {} + +static inline int pci_dev_reset_iommu_prepare(struct pci_dev *pdev) +{ + return 0; +} + +static inline void pci_dev_reset_iommu_done(struct pci_dev *pdev) +{ +} #endif /* CONFIG_IOMMU_API */ #ifdef CONFIG_IRQ_MSI_IOMMU diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index ac2329f24141..bb7b89330d35 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -964,6 +964,10 @@ struct vfio_device_bind_iommufd { * hwpt corresponding to the given pt_id. * * Return: 0 on success, -errno on failure. + * + * When a device is resetting, -EBUSY will be returned to reject any concurrent + * attachment to the resetting device itself or any sibling device in the IOMMU + * group having the resetting device. */ struct vfio_device_attach_iommufd_pt { __u32 argsz; |