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qapi: Add device ID and head parameters to screendump

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QEMU's screendump command can only take dumps from the primary display.
When using multiple VGA cards, there is no way to get a dump from a
secondary card or other display heads yet. So let's add a 'device' and
a 'head' parameter to the HMP and QMP commands to be able to specify
alternative devices and heads with the screendump command, too.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1520267868-31778-1-git-send-email-thuth@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Thomas Huth 2018-03-05 17:37:48 +01:00 • committed by Gerd Hoffmann
parent b153f9019b
commit f771c5440e
4 changed files with 35 additions and 10 deletions
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7
hmp-commands.hx
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@ -253,9 +253,10 @@ ETEXI
{
.name = "screendump",
.args_type = "filename:F",
.params = "filename",
.help = "save screen into PPM image 'filename'",
.args_type = "filename:F,device:s?,head:i?",
.params = "filename [device [head]]",
.help = "save screen from head 'head' of display device 'device' "
"into PPM image 'filename'",
.cmd = hmp_screendump,
},