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authorEugenio Pérez <eperezma@redhat.com>2026-01-19 15:32:55 +0100
committerMichael S. Tsirkin <mst@redhat.com>2026-01-28 15:32:16 -0500
commita006ed4ecd4905b69402980ad7d4e5f31bf44953 (patch)
tree756924e0cc8d034886cecff4c2dd553fced6cffd /include/uapi/linux
parentcd025c1e876b4e262e71398236a1550486a73ede (diff)
vduse: add v1 API definition
This allows the kernel to detect whether the userspace VDUSE device supports the VQ group and ASID features. VDUSE devices that don't set the V1 API will not receive the new messages, and vdpa device will be created with only one vq group and asid. The next patches implement the new feature incrementally, only enabling the VDUSE device to set the V1 API version by the end of the series. Acked-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Xie Yongji <xieyongji@bytedance.com> Signed-off-by: Eugenio Pérez <eperezma@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20260119143306.1818855-3-eperezma@redhat.com>
Diffstat (limited to 'include/uapi/linux')
-rw-r--r--include/uapi/linux/vduse.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/uapi/linux/vduse.h b/include/uapi/linux/vduse.h
index 10ad71aa00d6..ccb92a1efce0 100644
--- a/include/uapi/linux/vduse.h
+++ b/include/uapi/linux/vduse.h
@@ -10,6 +10,10 @@
#define VDUSE_API_VERSION 0
+/* VQ groups and ASID support */
+
+#define VDUSE_API_VERSION_1 1
+
/*
* Get the version of VDUSE API that kernel supported (VDUSE_API_VERSION).
* This is used for future extension.