From 120e214e504fd6d3e33ec4b661193600b2faab95 Mon Sep 17 00:00:00 2001 From: Dong Jia Shi Date: Fri, 17 Mar 2017 04:17:38 +0100 Subject: vfio: ccw: realize VFIO_DEVICE_G(S)ET_IRQ_INFO ioctls Realize VFIO_DEVICE_GET_IRQ_INFO ioctl to retrieve VFIO_CCW_IO_IRQ information. Realize VFIO_DEVICE_SET_IRQS ioctl to set an eventfd fd for VFIO_CCW_IO_IRQ. Once a write operation to the ccw_io_region was performed, trigger a signal on this fd. Reviewed-by: Pierre Morel Signed-off-by: Dong Jia Shi Acked-by: Alex Williamson Message-Id: <20170317031743.40128-12-bjsdjshi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck --- include/uapi/linux/vfio.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index 3fd70ffe9d78..ae461050661a 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -449,8 +449,9 @@ enum { }; /* - * The vfio-ccw bus driver makes use of the following fixed region. - * Unimplemented regions return a size of zero. + * The vfio-ccw bus driver makes use of the following fixed region and + * IRQ index mapping. Unimplemented regions return a size of zero. + * Unimplemented IRQ types return a count of zero. */ enum { @@ -458,6 +459,11 @@ enum { VFIO_CCW_NUM_REGIONS }; +enum { + VFIO_CCW_IO_IRQ_INDEX, + VFIO_CCW_NUM_IRQS +}; + /** * VFIO_DEVICE_GET_PCI_HOT_RESET_INFO - _IORW(VFIO_TYPE, VFIO_BASE + 12, * struct vfio_pci_hot_reset_info) -- cgit v1.2.3