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s390/vfio-ap: realize the VFIO_DEVICE_GET_IRQ_INFO ioctl

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Realize the VFIO_DEVICE_GET_IRQ_INFO ioctl to retrieve the information for
the VFIO device request IRQ.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Tested-by: Matthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/20230530223538.279198-2-akrowiak@linux.ibm.com
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Tony Krowiak
2023-05-30 18:35:36 -04:00
committed by Alexander Gordeev
parent e23b4fdb5c
commit 6afc770048
2 changed files with 38 additions and 1 deletions
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9
include/uapi/linux/vfio.h
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@@ -646,6 +646,15 @@ enum {
VFIO_CCW_NUM_IRQS
};
/*
* The vfio-ap bus driver makes use of the following IRQ index mapping.
* Unimplemented IRQ types return a count of zero.
*/
enum {
VFIO_AP_REQ_IRQ_INDEX,
VFIO_AP_NUM_IRQS
};
/**
* VFIO_DEVICE_GET_PCI_HOT_RESET_INFO - _IOWR(VFIO_TYPE, VFIO_BASE + 12,
* struct vfio_pci_hot_reset_info)