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hw/misc: deprecate the 'sga' device

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This is obsolete since SeaBIOS 1.11.0 introduced native support for
sending messages to the serial console. The new support can be
activated using -machine graphics=off on x86 targets.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20210909123219.862652-1-berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2021-09-09 13:32:19 +01:00 • committed by Gerd Hoffmann
parent 014b00cc0a
commit 7c8d295b27
2 changed files with 12 additions and 0 deletions
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10
docs/about/deprecated.rst
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@ -313,6 +313,16 @@ full SCSI support. Use virtio-scsi instead when SCSI passthrough is required.
Note this also applies to ``-device virtio-blk-pci,scsi=on|off``, which is an
alias.
``-device sga`` (since 6.2)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
The ``sga`` device loads an option ROM for x86 targets which enables
SeaBIOS to send messages to the serial console. SeaBIOS 1.11.0 onwards
contains native support for this feature and thus use of the option
ROM approach is obsolete. The native SeaBIOS support can be activated
by using ``-machine graphics=off``.
Block device options
''''''''''''''''''''