diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/vfio_pci_core.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/include/linux/vfio_pci_core.h b/include/linux/vfio_pci_core.h index 89165b769e5c..5fc6ce4dd786 100644 --- a/include/linux/vfio_pci_core.h +++ b/include/linux/vfio_pci_core.h @@ -127,6 +127,7 @@ struct vfio_pci_core_device { bool needs_pm_restore:1; bool pm_intx_masked:1; bool pm_runtime_engaged:1; + bool sriov_active; struct pci_saved_state *pci_saved_state; struct pci_saved_state *pm_save; int ioeventfds_nr; @@ -188,7 +189,6 @@ int vfio_pci_core_match_token_uuid(struct vfio_device *core_vdev, int vfio_pci_core_enable(struct vfio_pci_core_device *vdev); void vfio_pci_core_disable(struct vfio_pci_core_device *vdev); void vfio_pci_core_finish_enable(struct vfio_pci_core_device *vdev); -int vfio_pci_core_setup_barmap(struct vfio_pci_core_device *vdev, int bar); pci_ers_result_t vfio_pci_core_aer_err_detected(struct pci_dev *pdev, pci_channel_state_t state); ssize_t vfio_pci_core_do_io_rw(struct vfio_pci_core_device *vdev, bool test_mem, @@ -234,6 +234,25 @@ static inline bool is_aligned_for_order(struct vm_area_struct *vma, !IS_ALIGNED(pfn, 1 << order))); } +/* + * Returns a BAR's iomap base or an ERR_PTR() if, for example, the + * BAR isn't valid, its resource wasn't acquired, or its iomap + * failed. This shall only be used after vfio_pci_core_enable() + * has set up the BAR maps and before vfio_pci_core_disable() + * tears them down. + */ +static inline void __iomem __must_check * +vfio_pci_core_get_iomap(struct vfio_pci_core_device *vdev, unsigned int bar) +{ + if (WARN_ON_ONCE(bar >= PCI_STD_NUM_BARS)) + return IOMEM_ERR_PTR(-EINVAL); + + if (WARN_ON_ONCE(!vdev->barmap[bar])) + return IOMEM_ERR_PTR(-ENODEV); + + return vdev->barmap[bar]; +} + int vfio_pci_dma_buf_iommufd_map(struct dma_buf_attachment *attachment, struct phys_vec *phys); |