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authorAlex Williamson <alex.williamson@redhat.com>2016-02-22 16:02:33 -0700
committerAlex Williamson <alex.williamson@redhat.com>2016-02-22 16:10:08 -0700
commitd7a8d5ed876970ac7f9bafbb6708500a7838c1d7 (patch)
tree92a28cf94a2e0fab42579b4484d6e0e644e2aee7 /include/linux/vfio.h
parentc84982adb23bcf3b99b79ca33527cd2625fbe279 (diff)
vfio: Add capability chain helpers
Allow sub-modules to easily reallocate a buffer for managing capability chains for info ioctls. Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'include/linux/vfio.h')
-rw-r--r--include/linux/vfio.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 610a86a892b8..0ecae0b1cd34 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -92,6 +92,17 @@ extern int vfio_external_user_iommu_id(struct vfio_group *group);
extern long vfio_external_check_extension(struct vfio_group *group,
unsigned long arg);
+/*
+ * Sub-module helpers
+ */
+struct vfio_info_cap {
+ struct vfio_info_cap_header *buf;
+ size_t size;
+};
+extern struct vfio_info_cap_header *vfio_info_cap_add(
+ struct vfio_info_cap *caps, size_t size, u16 id, u16 version);
+extern void vfio_info_cap_shift(struct vfio_info_cap *caps, size_t offset);
+
struct pci_dev;
#ifdef CONFIG_EEH
extern void vfio_spapr_pci_eeh_open(struct pci_dev *pdev);