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vfio: Add external user check extension interface

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This lets us check extensions, particularly VFIO_DMA_CC_IOMMU using
the external user interface, allowing KVM to probe IOMMU coherency.

Signed-off-by: Alex Williamson <[email protected]>
This commit is contained in:
Alex Williamson 2014-02-26 11:38:39 -07:00
commit 88d7ab8949
2 changed files with 8 additions and 0 deletions
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6
drivers/vfio/vfio.c
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@ -1413,6 +1413,12 @@ int vfio_external_user_iommu_id(struct vfio_group *group)
}
EXPORT_SYMBOL_GPL(vfio_external_user_iommu_id);
long vfio_external_check_extension(struct vfio_group *group, unsigned long arg)
{
return vfio_ioctl_check_extension(group->container, arg);
}
EXPORT_SYMBOL_GPL(vfio_external_check_extension);
/**
* Module/class support
*/