From: "Eugenio Pérez" <eperezma@redhat.com>
To: "Michael S . Tsirkin " <mst@redhat.com>
Cc: "Yongji Xie" <xieyongji@bytedance.com>,
"Stefano Garzarella" <sgarzare@redhat.com>,
"Xuan Zhuo" <xuanzhuo@linux.alibaba.com>,
virtualization@lists.linux.dev, linux-kernel@vger.kernel.org,
jasowang@redhat.com, "Maxime Coquelin" <mcoqueli@redhat.com>,
"Laurent Vivier" <lvivier@redhat.com>,
"Cindy Lu" <lulu@redhat.com>,
"Eugenio Pérez" <eperezma@redhat.com>
Subject: [PATCH v7 2/7] vduse: add v1 API definition
Date: Fri, 10 Oct 2025 10:58:22 +0200 [thread overview]
Message-ID: <20251010085827.116958-3-eperezma@redhat.com> (raw)
In-Reply-To: <20251010085827.116958-1-eperezma@redhat.com>
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.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
include/uapi/linux/vduse.h | 4 ++++
1 file changed, 4 insertions(+)
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.
--
2.51.0
next prev parent reply other threads:[~2025-10-10 8:58 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-10 8:58 [PATCH v7 0/7] Add multiple address spaces support to VDUSE Eugenio Pérez
2025-10-10 8:58 ` [PATCH v7 1/7] vduse: make domain_lock an rwlock Eugenio Pérez
2025-10-10 12:34 ` Michael S. Tsirkin
2025-10-17 6:32 ` Eugenio Perez Martin
2025-10-23 8:59 ` Eugenio Perez Martin
2025-10-27 16:57 ` Michael S. Tsirkin
2025-10-10 8:58 ` Eugenio Pérez [this message]
2025-10-11 5:21 ` [PATCH v7 2/7] vduse: add v1 API definition Jason Wang
2025-10-10 8:58 ` [PATCH v7 3/7] vduse: add vq group support Eugenio Pérez
2025-10-11 5:22 ` Jason Wang
2025-10-10 8:58 ` [PATCH v7 4/7] vduse: return internal vq group struct as map token Eugenio Pérez
2025-10-11 5:22 ` Jason Wang
2025-10-10 8:58 ` [PATCH v7 5/7] vduse: refactor vdpa_dev_add for goto err handling Eugenio Pérez
2025-10-11 5:23 ` Jason Wang
2025-10-10 8:58 ` [PATCH v7 6/7] vduse: add vq group asid support Eugenio Pérez
2025-10-11 5:23 ` Jason Wang
2025-10-10 8:58 ` [PATCH v7 7/7] vduse: bump version number Eugenio Pérez
2025-10-11 5:23 ` Jason Wang
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