From 8061d1c31f1a018281bc9877ecce44bfc779e21d Mon Sep 17 00:00:00 2001 From: Matthew Rosato Date: Mon, 6 Jun 2022 16:33:21 -0400 Subject: vfio-pci/zdev: add open/close device hooks During vfio-pci open_device, pass the KVM associated with the vfio group (if one exists). This is needed in order to pass a special indicator (GISA) to firmware to allow zPCI interpretation facilities to be used for only the specific KVM associated with the vfio-pci device. During vfio-pci close_device, unregister the notifier. Signed-off-by: Matthew Rosato Acked-by: Alex Williamson Reviewed-by: Pierre Morel Link: https://lore.kernel.org/r/20220606203325.110625-18-mjrosato@linux.ibm.com Signed-off-by: Christian Borntraeger --- include/linux/vfio_pci_core.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/linux') diff --git a/include/linux/vfio_pci_core.h b/include/linux/vfio_pci_core.h index 63af2897939c..d5d9e17f0156 100644 --- a/include/linux/vfio_pci_core.h +++ b/include/linux/vfio_pci_core.h @@ -209,12 +209,22 @@ static inline int vfio_pci_igd_init(struct vfio_pci_core_device *vdev) #ifdef CONFIG_VFIO_PCI_ZDEV_KVM extern int vfio_pci_info_zdev_add_caps(struct vfio_pci_core_device *vdev, struct vfio_info_cap *caps); +int vfio_pci_zdev_open_device(struct vfio_pci_core_device *vdev); +void vfio_pci_zdev_close_device(struct vfio_pci_core_device *vdev); #else static inline int vfio_pci_info_zdev_add_caps(struct vfio_pci_core_device *vdev, struct vfio_info_cap *caps) { return -ENODEV; } + +static inline int vfio_pci_zdev_open_device(struct vfio_pci_core_device *vdev) +{ + return 0; +} + +static inline void vfio_pci_zdev_close_device(struct vfio_pci_core_device *vdev) +{} #endif /* Will be exported for vfio pci drivers usage */ -- cgit v1.2.3