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| author |   Jike Song <jike.song@intel.com> | 2016-12-01 13:20:06 +0800 |
|---|---|---|
| committer |   Alex Williamson <alex.williamson@redhat.com> | 2016-12-01 10:40:05 -0700 |
| commit | ccd46dbae77dbf0d33f42e04b59536f108c395e8 (patch) | |
| tree | 6857fe3d01f70509d63f656670a8f757d0b67c4e /include/linux/vfio.h | |
| parent | vfio: vfio_register_notifier: classify iommu notifier (diff) | |
| download | wireguard-linux-ccd46dbae77dbf0d33f42e04b59536f108c395e8.tar.xz wireguard-linux-ccd46dbae77dbf0d33f42e04b59536f108c395e8.zip | |
vfio: support notifier chain in vfio_group
Beyond vfio_iommu events, users might also be interested in
vfio_group events. For example, if a vfio_group is used along
with Qemu/KVM, whenever kvm pointer is set to/cleared from the
vfio_group, users could be notified.
Currently only VFIO_GROUP_NOTIFY_SET_KVM supported.
Cc: Kirti Wankhede <kwankhede@nvidia.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Jike Song <jike.song@intel.com>
[aw: remove use of new typedef]
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'include/linux/vfio.h')
| -rw-r--r-- | include/linux/vfio.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/vfio.h b/include/linux/vfio.h index 0e5201f207d3..edf9b2cad277 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -111,11 +111,15 @@ extern int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn, /* each type has independent events */ enum vfio_notify_type { VFIO_IOMMU_NOTIFY = 0, + VFIO_GROUP_NOTIFY = 1, }; /* events for VFIO_IOMMU_NOTIFY */ #define VFIO_IOMMU_NOTIFY_DMA_UNMAP BIT(0) +/* events for VFIO_GROUP_NOTIFY */ +#define VFIO_GROUP_NOTIFY_SET_KVM BIT(0) + extern int vfio_register_notifier(struct device *dev, enum vfio_notify_type type, unsigned long *required_events, @@ -124,6 +128,9 @@ extern int vfio_unregister_notifier(struct device *dev, enum vfio_notify_type type, struct notifier_block *nb); +struct kvm; +extern void vfio_group_set_kvm(struct vfio_group *group, struct kvm *kvm); + /* * Sub-module helpers */ |