This is obsolete since SeaBIOS 1.11.0 introduced native support for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@xxxxxxxxxx>
---
docs/about/deprecated.rst | 10 ++++++++++
hw/misc/sga.c | 2 ++
2 files changed, 12 insertions(+)
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index 9ee355ec0b..cafca05826 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -280,6 +280,16 @@ 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+ROM approach is obsolete.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
''''''''''''''''''''
diff --git a/hw/misc/sga.c b/hw/misc/sga.c
index 4dbe6d78f9..1d04672b01 100644
--- a/hw/misc/sga.c
+++ b/hw/misc/sga.c
@@ -30,6 +30,7 @@
#include "hw/loader.h"
#include "qemu/module.h"
#include "qom/object.h"
+#include "qemu/error-report.h"
#define SGABIOS_FILENAME "sgabios.bin"
@@ -42,6 +43,7 @@ struct ISASGAState {
static void sga_realizefn(DeviceState *dev, Error **errp)
{
+ warn_report("-device sga is deprecated, use -machine graphics=off");
rom_add_vga(SGABIOS_FILENAME);
}
--
2.31.1
