diff options
Diffstat (limited to 'drivers/s390/cio/vfio_ccw_drv.c')
| -rw-r--r-- | drivers/s390/cio/vfio_ccw_drv.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c index fb1275a7d1f5..7aeff42f370d 100644 --- a/drivers/s390/cio/vfio_ccw_drv.c +++ b/drivers/s390/cio/vfio_ccw_drv.c @@ -27,6 +27,7 @@ struct workqueue_struct *vfio_ccw_work_q; static struct kmem_cache *vfio_ccw_io_region; static struct kmem_cache *vfio_ccw_cmd_region; +static struct kmem_cache *vfio_ccw_schib_region; debug_info_t *vfio_ccw_debug_msg_id; debug_info_t *vfio_ccw_debug_trace_id; @@ -119,6 +120,8 @@ static void vfio_ccw_sch_irq(struct subchannel *sch) static void vfio_ccw_free_regions(struct vfio_ccw_private *private) { + if (private->schib_region) + kmem_cache_free(vfio_ccw_schib_region, private->schib_region); if (private->cmd_region) kmem_cache_free(vfio_ccw_cmd_region, private->cmd_region); if (private->io_region) @@ -156,6 +159,12 @@ static int vfio_ccw_sch_probe(struct subchannel *sch) if (!private->cmd_region) goto out_free; + private->schib_region = kmem_cache_zalloc(vfio_ccw_schib_region, + GFP_KERNEL | GFP_DMA); + + if (!private->schib_region) + goto out_free; + private->sch = sch; dev_set_drvdata(&sch->dev, private); mutex_init(&private->io_mutex); @@ -357,6 +366,7 @@ static void vfio_ccw_debug_exit(void) static void vfio_ccw_destroy_regions(void) { + kmem_cache_destroy(vfio_ccw_schib_region); kmem_cache_destroy(vfio_ccw_cmd_region); kmem_cache_destroy(vfio_ccw_io_region); } @@ -393,6 +403,16 @@ static int __init vfio_ccw_sch_init(void) goto out_err; } + vfio_ccw_schib_region = kmem_cache_create_usercopy("vfio_ccw_schib_region", + sizeof(struct ccw_schib_region), 0, + SLAB_ACCOUNT, 0, + sizeof(struct ccw_schib_region), NULL); + + if (!vfio_ccw_schib_region) { + ret = -ENOMEM; + goto out_err; + } + isc_register(VFIO_CCW_ISC); ret = css_driver_register(&vfio_ccw_sch_driver); if (ret) { |