Coreinfo: Difference between revisions

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(Thanks to https://review.coreboot.org/#/c/12454/, libpayload does not to be linked manually anymore and works across all systems.)
 
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== Building coreinfo ==
== Building coreinfo ==


[[libpayload]] and coreinfo are in the '''payloads/''' directory of the coreboot tree. If you have already checked out the tree, you can skip the svn co steps below.
[[libpayload]] and coreinfo are in the '''payloads/''' directory of the coreboot tree. If you have already checked out the tree, you can skip the git clone steps below.
 
$ '''git clone http://review.coreboot.org/p/coreboot'''


=== libpayload ===
=== libpayload ===
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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:


  $ '''svn co svn://coreboot.org/coreboot/trunk/payloads/libpayload'''
  $ '''cd coreboot/payloads/libpayload'''
$ '''cd libpayload'''
  $ '''make menuconfig'''
  $ '''make menuconfig'''
  $ '''make install'''
  $ '''make install'''
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You can then get coreinfo itself and build it:
You can then get coreinfo itself and build it:


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


The file '''build/coreinfo.elf''' is your final coreinfo payload which you can use with coreboot, either on real hardware or in a [[QEMU]] image.
If you are fine with coreboot's default configuration, you can also build coreinfo directly without any steps beforehand as libreboot's build system automatically builds libpayload as a dependency:
 
$ '''make -C coreboot/payloads/coreinfo'''
 
The file '''coreboot/payloads/coreinfo/build/coreinfo.elf''' is your final coreinfo payload which you can use with coreboot, either on real hardware or in a [[QEMU]] image.


=== coreboot ===
=== coreboot ===
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Finally, you have to build coreboot with coreinfo as payload:
Finally, you have to build coreboot with coreinfo as payload:


  $ '''cd ..'''
  $ '''cp coreboot/payloads/coreinfo/build/coreinfo.elf coreboot/payload.elf'''
$ '''svn co svn://coreboot.org/coreboot/trunk coreboot'''
$ '''cp coreinfo/build/coreinfo.elf coreboot/payload.elf'''
  $ '''cd coreboot'''
  $ '''cd coreboot'''
  $ '''make menuconfig'''
  $ '''make menuconfig'''
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== Running coreinfo in QEMU ==
== Running coreinfo in QEMU ==


For running coreboot+coreinfo image in [[QEMU]], you need a patched version of '''vgabios-cirrus.bin''' in your '''build''' directory first:
For running coreboot+coreinfo image in [[QEMU]], you need  
 
1 Previously described steps (build coreboot image for QEMU)
 
2 Patched version of '''vgabios-cirrus.bin''' in your '''build''' directory:


  $ '''cd build'''
  $ '''cd build'''
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You can now run coreinfo in [[QEMU]]:
You can now run coreinfo in [[QEMU]]:


  $ qemu -L build -hda /dev/zero -serial stdio
  $ qemu-system-i386 -L build -hda /dev/zero -serial stdio


== Ready-made coreinfo QEMU image ==
== Ready-made coreinfo QEMU image ==

Latest revision as of 07:48, 7 December 2015

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

Screenshots

Building coreinfo

libpayload and coreinfo are in the payloads/ directory of the coreboot tree. If you have already checked out the tree, you can skip the git clone steps below.

$ git clone http://review.coreboot.org/p/coreboot

libpayload

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

$ cd coreboot/payloads/libpayload
$ make menuconfig
$ make install

coreinfo

You can then get coreinfo itself and build it:

$ cd coreboot/payloads/coreinfo
$ make menuconfig
$ make

If you are fine with coreboot's default configuration, you can also build coreinfo directly without any steps beforehand as libreboot's build system automatically builds libpayload as a dependency:

$ make -C coreboot/payloads/coreinfo

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

coreboot

Finally, you have to build coreboot with coreinfo as payload:

$ cp coreboot/payloads/coreinfo/build/coreinfo.elf coreboot/payload.elf
$ cd coreboot
$ make menuconfig

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

$ make

The file build/coreboot.rom is your final coreboot image, which also contains the coreinfo payload.

Running coreinfo in QEMU

For running coreboot+coreinfo image in QEMU, you need

1 Previously described steps (build coreboot image for QEMU)

2 Patched version of vgabios-cirrus.bin in your build directory:

$ 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-system-i386 -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.


Public domain I, the copyright holder of this work, hereby release it into the public domain. This applies worldwide.

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