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| author | Alex Williamson <alex.williamson@redhat.com> | 2013-10-30 11:02:17 -0600 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-10-30 19:02:03 +0100 |
| commit | ec53500fae421e07c5d035918ca454a429732ef4 (patch) | |
| tree | 3b9e0c67b9982f5b374e819a55cd510c14d481b8 /include | |
| parent | 84cffe499b9418d6c3b4de2ad9599cc2ec50c607 (diff) | |
| download | talos-obmc-linux-ec53500fae421e07c5d035918ca454a429732ef4.tar.gz talos-obmc-linux-ec53500fae421e07c5d035918ca454a429732ef4.zip | |
kvm: Add VFIO device
So far we've succeeded at making KVM and VFIO mostly unaware of each
other, but areas are cropping up where a connection beyond eventfds
and irqfds needs to be made. This patch introduces a KVM-VFIO device
that is meant to be a gateway for such interaction. The user creates
the device and can add and remove VFIO groups to it via file
descriptors. When a group is added, KVM verifies the group is valid
and gets a reference to it via the VFIO external user interface.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/kvm_host.h | 1 | ||||
| -rw-r--r-- | include/uapi/linux/kvm.h | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index c9d4236ab442..7beddbd38ac7 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1058,6 +1058,7 @@ struct kvm_device *kvm_device_from_filp(struct file *filp); extern struct kvm_device_ops kvm_mpic_ops; extern struct kvm_device_ops kvm_xics_ops; +extern struct kvm_device_ops kvm_vfio_ops; #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 32c60b98ddf8..509cfbfe9658 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -845,6 +845,10 @@ struct kvm_device_attr { #define KVM_DEV_TYPE_FSL_MPIC_20 1 #define KVM_DEV_TYPE_FSL_MPIC_42 2 #define KVM_DEV_TYPE_XICS 3 +#define KVM_DEV_TYPE_VFIO 4 +#define KVM_DEV_VFIO_GROUP 1 +#define KVM_DEV_VFIO_GROUP_ADD 1 +#define KVM_DEV_VFIO_GROUP_DEL 2 /* * ioctls for VM fds |
