36 lines
1.6 KiB
Plaintext
36 lines
1.6 KiB
Plaintext
|
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, 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. The main VGA BIOS code is located in the "vgasrc/"
|
||
|
|
directory. The VGA BIOS code is always compiled in 16bit mode.
|
||
|
|
|
||
|
|
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 applies to
|
||
|
|
SeaVGABIOS. To contribute, please join the SeaBIOS mailing list.
|