From: Gerd Hoffmann <kraxel@redhat.com>
To: virtio-dev@redhat.com
Cc: kvm@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>,
David Airlie <airlied@linux.ie>, Jason Wang <jasowang@redhat.com>,
open list <linux-kernel@vger.kernel.org>,
dri-devel@lists.freedesktop.org,
"open list:VIRTIO GPU DRIVER"
<virtualization@lists.linux-foundation.org>,
Gerd Hoffmann <kraxel@redhat.com>
Subject: [PATCH v2] virtio-gpu: add VIRTIO_GPU_F_EDID feature
Date: Fri, 5 Oct 2018 14:51:54 +0200 [thread overview]
Message-ID: <20181005125154.19824-1-kraxel@redhat.com> (raw)
The feature allows the guest request an EDID blob (describing monitor
capabilities) for a given scanout (aka virtual monitor connector).
It brings a new command message, which has just a scanout field (beside
the standard virtio-gpu header) and a response message which carries the
EDID data.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
include/uapi/linux/virtio_gpu.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gpu.h
index f43c3c6171..1cef1ff339 100644
--- a/include/uapi/linux/virtio_gpu.h
+++ b/include/uapi/linux/virtio_gpu.h
@@ -41,6 +41,7 @@
#include <linux/types.h>
#define VIRTIO_GPU_F_VIRGL 0
+#define VIRTIO_GPU_F_EDID 1
enum virtio_gpu_ctrl_type {
VIRTIO_GPU_UNDEFINED = 0,
@@ -56,6 +57,7 @@ enum virtio_gpu_ctrl_type {
VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING,
VIRTIO_GPU_CMD_GET_CAPSET_INFO,
VIRTIO_GPU_CMD_GET_CAPSET,
+ VIRTIO_GPU_CMD_GET_EDID,
/* 3d commands */
VIRTIO_GPU_CMD_CTX_CREATE = 0x0200,
@@ -76,6 +78,7 @@ enum virtio_gpu_ctrl_type {
VIRTIO_GPU_RESP_OK_DISPLAY_INFO,
VIRTIO_GPU_RESP_OK_CAPSET_INFO,
VIRTIO_GPU_RESP_OK_CAPSET,
+ VIRTIO_GPU_RESP_OK_EDID,
/* error responses */
VIRTIO_GPU_RESP_ERR_UNSPEC = 0x1200,
@@ -291,6 +294,20 @@ struct virtio_gpu_resp_capset {
__u8 capset_data[];
};
+/* VIRTIO_GPU_CMD_GET_EDID */
+struct virtio_gpu_get_edid {
+ struct virtio_gpu_ctrl_hdr hdr;
+ __le32 scanout;
+};
+
+/* VIRTIO_GPU_RESP_OK_EDID */
+struct virtio_gpu_resp_edid {
+ struct virtio_gpu_ctrl_hdr hdr;
+ __le32 scanout;
+ __le32 size;
+ __u8 edid[1024];
+};
+
#define VIRTIO_GPU_EVENT_DISPLAY (1 << 0)
struct virtio_gpu_config {
--
2.9.3
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next reply other threads:[~2018-10-05 12:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-05 12:51 Gerd Hoffmann [this message]
2018-10-05 14:38 ` [PATCH v2] virtio-gpu: add VIRTIO_GPU_F_EDID feature Christophe de Dinechin
2018-10-05 14:41 ` Daniel Vetter
2018-10-05 15:33 ` Christophe de Dinechin
2018-10-05 15:55 ` Gerd Hoffmann
2018-10-18 1:17 ` Dave Airlie
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