[Linaro-mm-sig] Re: [PATCH v9 10/11] vfio/pci: Add dma-buf export support for MMIO regions

On Thu, Nov 20, 2025 at 05:04:13PM -0700, Alex Williamson wrote:

@@ -2501,7 +2501,7 @@ static int vfio_pci_dev_set_hot_reset(struct vfio_device_set *dev_set, err_undo: list_for_each_entry_from_reverse(vdev, &dev_set->device_list, vdev.dev_set_list) {

•           if (__vfio_pci_memory_enabled(vdev))
  

•           if (vdev->vdev.open_count && __vfio_pci_memory_enabled(vdev))
                    vfio_pci_dma_buf_move(vdev, false);
            up_write(&vdev->memory_lock);
    }
  
  

Any other suggestions? This should be the only reset path with this nuance of affecting non-opened devices. Thanks,

Seems reasonable, but should it be in __vfio_pci_memory_enabled() just to be robust?

Jason