Signed-off-by: Kevin O'Connor kevin@koconnor.net --- docs/SeaBIOS.md | 2 ++ docs/SeaVGABIOS.md | 38 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 40 insertions(+) create mode 100644 docs/SeaVGABIOS.md
diff --git a/docs/SeaBIOS.md b/docs/SeaBIOS.md index 831bfce..e24913a 100644 --- a/docs/SeaBIOS.md +++ b/docs/SeaBIOS.md @@ -10,6 +10,8 @@ information on using SeaBIOS in coreboot. Please see the [releases](Releases) page for information on recent releases. See the [download](Download) page to obtain SeaBIOS.
+[SeaVGABIOS](SeaVGABIOS) is a sub-project of SeaBIOS. + Please join the [mailing list](Mailinglist) to contribute to SeaBIOS. Information on the internals of SeaBIOS is available on the [Developer Documentation](Developer Documentation) page. diff --git a/docs/SeaVGABIOS.md b/docs/SeaVGABIOS.md new file mode 100644 index 0000000..8e4e8e8 --- /dev/null +++ b/docs/SeaVGABIOS.md @@ -0,0 +1,38 @@ +SeaVGABIOS is a sub-project of the SeaBIOS project - it is an open +source implementation of a 16bit X86 +[VGA BIOS](http://en.wikipedia.org/wiki/Video_BIOS). SeaVGABIOS is the +default VGA BIOS on [QEMU](http://www.qemu.org/). SeaVGABIOS can also +run natively on some X86 VGA hardware with +[coreboot](http://www.coreboot.org/). + +Building SeaVGABIOS +=================== + +To build SeaVGABIOS, obtain the [code](Download), run `make +menuconfig` and select the type of VGA BIOS to build in the "VGA ROM" +menu. Once selected, run `make` and the final VGA BIOS binary will be +located in "out/vgabios.bin". + +The choice of available VGA BIOSes within "make menuconfig" is +dependent on whether CONFIG_QEMU, CONFIG_COREBOOT, or CONFIG_CSM is +selected. Also, the debug options under the "Debugging" menu apply to +SeaVGABIOS. All other options found in "make menuconfig" apply only to +SeaBIOS and will not impact the SeaVGABIOS build. + +If SeaVGABIOS is needed for multiple different devices (eg, QEMU's +cirrus emulation and QEMU's "dispi" emulation), then one must compile +SeaVGABIOS multiple times with the appropriate config for each build. + +SeaVGABIOS code +=============== + +The source code for SeaVGABIOS is located in the SeaBIOS +[git repository](Download). The main VGA BIOS code is located in the +"vgasrc/" directory. + +The SeaVGABIOS builds to a separate binary from the main SeaBIOS +binary, and much of the VGA BIOS code is separate from the main BIOS +code. However, much of the SeaBIOS +[developer documentation](Developer_Documentation) applies to +SeaVGABIOS. To contribute, please join the +[SeaBIOS mailing list](Mailinglist).