From: Tina Zhang <tina.zhang@intel.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Tina Zhang <tina.zhang@intel.com>,
intel-gvt-dev@lists.freedesktop.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, kraxel@redhat.com,
zhenyuw@linux.intel.com, alex.williamson@redhat.com,
hang.yuan@intel.com, zhiyuan.lv@intel.com
Subject: [PATCH 1/2] vfio: ABI for setting mdev display flip eventfd
Date: Mon, 27 May 2019 16:43:11 +0800 [thread overview]
Message-ID: <20190527084312.8872-2-tina.zhang@intel.com> (raw)
In-Reply-To: <20190527084312.8872-1-tina.zhang@intel.com>
Add VFIO_DEVICE_SET_GFX_FLIP_EVENTFD ioctl command to set eventfd
based signaling mechanism to deliver vGPU framebuffer page flip
event to userspace.
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
---
include/uapi/linux/vfio.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index 02bb7ad6e986..27300597717f 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -696,6 +696,18 @@ struct vfio_device_ioeventfd {
#define VFIO_DEVICE_IOEVENTFD _IO(VFIO_TYPE, VFIO_BASE + 16)
+/**
+ * VFIO_DEVICE_SET_GFX_FLIP_EVENTFD - _IOW(VFIO_TYPE, VFIO_BASE + 17, __s32)
+ *
+ * Set eventfd based signaling mechanism to deliver vGPU framebuffer page
+ * flip event to userspace. A value of -1 is used to stop the page flip
+ * delivering.
+ *
+ * Return: 0 on success, -errno on failure.
+ */
+
+#define VFIO_DEVICE_SET_GFX_FLIP_EVENTFD _IO(VFIO_TYPE, VFIO_BASE + 17)
+
/* -------- API for Type1 VFIO IOMMU -------- */
/**
--
2.17.1
next prev parent reply other threads:[~2019-05-27 8:48 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-27 8:43 [PATCH 0/2] Deliver vGPU page flip event to userspace Tina Zhang
2019-05-27 8:43 ` Tina Zhang [this message]
2019-05-27 9:07 ` [PATCH 1/2] vfio: ABI for setting mdev display flip eventfd Zhenyu Wang
2019-05-27 12:22 ` Gerd Hoffmann
2019-05-28 2:51 ` Zhenyu Wang
2019-05-27 14:04 ` Alex Williamson
2019-05-28 1:42 ` Zhang, Tina
2019-05-28 4:18 ` Alex Williamson
2019-05-27 8:43 ` [PATCH 2/2] drm/i915/gvt: Support delivering page flip event to userspace Tina Zhang
2019-05-27 9:11 ` Zhenyu Wang
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