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Add the StreamMsgGraphicsDeviceInfo message

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The message contains information about the graphics device and monitor
belonging to a particular video stream (which maps to a channel) from
the streaming agent.

Signed-off-by: Lukáš Hrázký <lhrazky@redhat.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
This commit is contained in:
Lukáš Hrázký 2019-01-16 13:52:44 +01:00 committed by Frediano Ziglio
parent 839cd8c1dd
commit 5ab9f2f7a5
1 changed files with 31 additions and 0 deletions
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31
spice/stream-device.h
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@ -90,6 +90,8 @@ typedef enum StreamMsgType {
STREAM_TYPE_CURSOR_SET,
/* guest cursor position */
STREAM_TYPE_CURSOR_MOVE,
/* the graphics device display information message (device address and display id) */
STREAM_TYPE_DEVICE_DISPLAY_INFO,
} StreamMsgType;
typedef enum StreamCapabilities {
@ -140,6 +142,35 @@ typedef struct StreamMsgData {
uint8_t data[0];
} StreamMsgData;
/* This message contains information about the graphics device and monitor
* belonging to a particular video stream (which maps to a channel) from
* the streaming agent.
*
* The device_address is the hardware address of the device (e.g. PCI),
* device_display_id is the id of the monitor on the device.
*
* The supported device address format is:
* "pci/<DOMAIN>/<SLOT>.<FUNCTION>/.../<SLOT>.<FUNCTION>"
*
* The "pci" identifies the rest of the string as a PCI address. It is the only
* supported address at the moment, other identifiers can be introduced later.
* <DOMAIN> is the PCI domain, followed by <SLOT>.<FUNCTION> of any PCI bridges
* in the chain leading to the device. The last <SLOT>.<FUNCTION> is the
* graphics device. All of <DOMAIN>, <SLOT>, <FUNCTION> are hexadecimal numbers
* with the following number of digits:
* <DOMAIN>: 4
* <SLOT>: 2
* <FUNCTION>: 1
*
* Sent from the streaming agent to the server.
*/
typedef struct StreamMsgDeviceDisplayInfo {
uint32_t stream_id;
uint32_t device_display_id;
uint32_t device_address_len;
uint8_t device_address[0]; // a zero-terminated string
} StreamMsgDeviceDisplayInfo;
/* Tell to stop current stream and possibly start a new one.
* This message is sent by the host to the guest.
* Allows to communicate the codecs supported by the clients.