Coreinfo: Difference between revisions

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== Downloading and building coreinfo ==
== Building coreinfo ==


=== libpayload ===
The coreinfo payload uses [[libpayload]], thus you need to get that first and build it:
The coreinfo payload uses [[libpayload]], thus you need to get that first and build it:


$ mkdir foo
$ cd foo
  $ svn co svn://coreboot.org/repos/trunk/payloads/libpayload
  $ svn co svn://coreboot.org/repos/trunk/payloads/libpayload
  $ cd libpayload
  $ cd libpayload
  $ make menuconfig
  $ make menuconfig
  $ make
  $ make
=== coreinfo ===


You can then get coreinfo itself and build it:
You can then get coreinfo itself and build it:
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  $ make
  $ make


The file '''build/coreinfo.elf''' is your final coreinfo payload which you can use with coreboot (v2 or v3), either on real hardware or in a QEMU image, e.g. like this:
The file '''build/coreinfo.elf''' is your final coreinfo payload which you can use with coreboot (v2 or v3), either on real hardware or in a QEMU image.
 
=== coreboot ===
 
Finally, you have to build coreboot (v3 in this example) with coreinfo as payload:
 
$ cd ..
$ svn co svn://coreboot.org/repository/coreboot-v3
$ cp coreinfo/build/coreinfo.elf coreboot-v3/payload.elf
$ cd coreboot-v3
$ make menuconfig
 
Now enter the '''Payload''' menu and select '''Payload type''' and then '''An ELF executable payload file'''. Now exit the menu, save your settings, and build coreboot:
 
$ make
 
The file '''build/coreboot.rom''' (or '''build/bios.bin''') is your final coreboot v3 image, which also contains the coreinfo payload.
 
== Running coreinfo in QEMU ==
 
For running coreboot+coreinfo image in QEMU, but you need a patched version of '''vgabios-cirrus.bin''' in your '''build''' directory first:
 
$ cd build
$ wget http://www.coreboot.org/images/0/0d/Vgabios-cirrus.zip
$ unzip Vgabios-cirrus.zip
$ cd ..
 
You can now run coreinfo in QEMU:


  $ qemu -L build -hda /dev/zero -serial stdio
  $ qemu -L build -hda /dev/zero -serial stdio


(where '''build/bios.bin''' is your coreboot v3 image in this case)
== Ready-made coreinfo QEMU image ==
 
If you don't want to build libpayload, coreinfo, and coreboot from source, you can also use the [[QEMU#coreboot_v3_.2B_coreinfo|ready-made coreinfo QEMU image]] by following the instructions on that page.
 


{{PD-self}}
{{PD-self}}

Revision as of 14:52, 1 April 2008

coreinfo is a small informational payload for coreboot. Currently, it can display CPU information, PCI information, coreboot table information, and show an NVRAM dump.

Screenshots

Building coreinfo

libpayload

The coreinfo payload uses libpayload, thus you need to get that first and build it:

$ mkdir foo
$ cd foo
$ svn co svn://coreboot.org/repos/trunk/payloads/libpayload
$ cd libpayload
$ make menuconfig
$ make

coreinfo

You can then get coreinfo itself and build it:

$ cd ..
$ svn co svn://coreboot.org/repos/trunk/payloads/coreinfo
$ cd coreinfo
$ make menuconfig
$ make

The file build/coreinfo.elf is your final coreinfo payload which you can use with coreboot (v2 or v3), either on real hardware or in a QEMU image.

coreboot

Finally, you have to build coreboot (v3 in this example) with coreinfo as payload:

$ cd ..
$ svn co svn://coreboot.org/repository/coreboot-v3
$ cp coreinfo/build/coreinfo.elf coreboot-v3/payload.elf
$ cd coreboot-v3
$ make menuconfig

Now enter the Payload menu and select Payload type and then An ELF executable payload file. Now exit the menu, save your settings, and build coreboot:

$ make

The file build/coreboot.rom (or build/bios.bin) is your final coreboot v3 image, which also contains the coreinfo payload.

Running coreinfo in QEMU

For running coreboot+coreinfo image in QEMU, but you need a patched version of vgabios-cirrus.bin in your build directory first:

$ cd build
$ wget http://www.coreboot.org/images/0/0d/Vgabios-cirrus.zip
$ unzip Vgabios-cirrus.zip
$ cd ..

You can now run coreinfo in QEMU:

$ qemu -L build -hda /dev/zero -serial stdio

Ready-made coreinfo QEMU image

If you don't want to build libpayload, coreinfo, and coreboot from source, you can also use the ready-made coreinfo QEMU image by following the instructions on that page.


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