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author | 2016-06-03 03:33:22 +0000 | |
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committer | 2016-06-03 03:33:23 +0000 | |
commit | da27230f80795d0028333713f036d44c53cb0e68 (patch) | |
tree | b3d379eaf000adf72b36cb01cdf4d79c3e3f064c /qemu/roms/seabios/docs/SeaVGABIOS.md | |
parent | 0e68cb048bb8aadb14675f5d4286d8ab2fc35449 (diff) | |
parent | 437fd90c0250dee670290f9b714253671a990160 (diff) |
Merge "These changes are the raw update to qemu-2.6."
Diffstat (limited to 'qemu/roms/seabios/docs/SeaVGABIOS.md')
-rw-r--r-- | qemu/roms/seabios/docs/SeaVGABIOS.md | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/qemu/roms/seabios/docs/SeaVGABIOS.md b/qemu/roms/seabios/docs/SeaVGABIOS.md new file mode 100644 index 000000000..7ec27804d --- /dev/null +++ b/qemu/roms/seabios/docs/SeaVGABIOS.md @@ -0,0 +1,39 @@ +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 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](Developer_Documentation) applies to +SeaVGABIOS. To contribute, please join the +[SeaBIOS mailing list](Mailinglist). |