coreboot | Coreboot sources

by teslamotors C Version: internal-c6c60df8932bc4f130a29e9079d1070aa13ebb1b License: GPL-2.0

X-Ray Key Features Code Snippets Community Discussions(5)Vulnerabilities Install Support

kandi X-RAY | coreboot Summary

coreboot is a C library typically used in Embedded System applications. coreboot has no bugs, it has a Strong Copyleft License and it has low support. However coreboot has 1 vulnerabilities. You can download it from GitHub.

coreboot is a Free Software project aimed at replacing the proprietary BIOS (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a payload. With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like PC BIOS services or UEFI. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required. coreboot was formerly known as LinuxBIOS.

Support

Quality

Security

License

Reuse

Support

coreboot has a low active ecosystem.

It has 91 star(s) with 21 fork(s). There are 19 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 0 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of coreboot is internal-c6c60df8932bc4f130a29e9079d1070aa13ebb1b

Quality

coreboot has no bugs reported.

Security

coreboot has 1 vulnerability issues reported (1 critical, 0 high, 0 medium, 0 low).

License

coreboot is licensed under the GPL-2.0 License. This license is Strong Copyleft.

Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

Reuse

coreboot releases are not available. You will need to build from source code and install.

Installation instructions are available. Examples and code snippets are not available.

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coreboot Key Features

No Key Features are available at this moment for coreboot.

coreboot Examples and Code Snippets

No Code Snippets are available at this moment for coreboot.

Community Discussions

Trending Discussions on coreboot

How does LinuxBoot differs from Coreboot in the firmware phase?

systemd boot: Apply IP address for eth0 from U-Boot environment?

Simplest way to execute binary (INTEL FSP) file from C/C++ program

Building coreboot: undefined reference __udivmoddi4

How to launch openbios from Qemu

QUESTION

How does LinuxBoot differs from Coreboot in the firmware phase?

Asked 2019-Oct-06 at 12:04

I am literally confused about the use case of using LinuxBoot as the payload for Coreboot.

I learned that LinuxBoot can completely replace the UEFI's DXE and BDS phases, and then can load the bootloader (say GRUB) or even the Linux kernel directly.

Now, I also read that LinuxBoot can be used as the payload for Coreboot.

If LinuxBoot can do everything from platform initialization to loading kernel, then why would someone even put Coreboot in the sequence? Simply, why the use case of using LinuxBoot as Coreboot's payload exists? What role will Coreboot play?

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ANSWER

Answered 2018-Dec-09 at 12:45

UEFI consists of multiple phases: SEC, PEI and DXE. LinuxBoot replaces the DXE phase, Coreboot replaces the SEC and PEI phases.

Coreboot is responsible for the platform initialization that cannot be done by Linux, such as DRAM initialization (it is also called "training") and ACPI table generation. Linux then works as a Coreboot payload, which does things such as PCI device enumeration, and loads the bootloader or can kexec() into another Linux kernel.

Source https://stackoverflow.com/questions/53681838

QUESTION

systemd boot: Apply IP address for eth0 from U-Boot environment?

Asked 2019-Jul-31 at 09:34

I have a yocto-based embedded Linux system using systemd. U-Boot/coreboot is used as used to boot the system. There are IP-Addresses stored in the U-Boot environment ...

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ANSWER

Answered 2019-Jul-30 at 18:42

The network address can be set via the ip= parameter in the Linux kernel command line https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/filesystems/nfs/nfsroot.txt#n82.

U-Boot uses variable bootargs to set the kernel command line.

So you just need to use to U-Boot ip-address to update bootargs.

Source https://stackoverflow.com/questions/57268149

QUESTION

Simplest way to execute binary (INTEL FSP) file from C/C++ program

Asked 2019-Jan-19 at 09:53

I am trying to integrate INTEL FSP in my custom OS for silicon initialization, for this I have to build OS with FSP binary at some valid address. I have searched a lot, but can not find binary integration guide anywhere, every where they are talking about APIs and FSP integration with coreboot. Is there any simplest way by which I can call binary file from my OS which is written in C?

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ANSWER

Answered 2019-Jan-19 at 09:53

This git hub link solved my issue. Following is the code snippet for MACRO definition INCBIN(), which uses assembly pseudo-instruction incbin in order to embed binary fie in the executable.

Source https://stackoverflow.com/questions/54235010

QUESTION

Building coreboot: undefined reference __udivmoddi4

Asked 2018-Jul-22 at 11:17

In building coreboot I got error regarding during linking:
coreboot/src/console/vtxprintf.c:102: undefined reference to '__udivmoddi4'.

Where can I find the library containing this function?

I'm building coreboot for x86_64 (Lenovo x230) using gcc (8.1.1 20180531).

Coreboot - git hash: f59a052ee8dae6f1378514cb622d229e652ad2f6

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ANSWER

Answered 2018-Jul-22 at 11:17

__udivmoddi4 is a function in libgcc which is used to implement a combined unsigned division/modulo operation for what GCC calls DI mode (doubled-up integers, 64-bit on i686). It is used for operations like this one:

Source https://stackoverflow.com/questions/51457851

QUESTION

How to launch openbios from Qemu

Asked 2018-Jul-20 at 07:09

Good day,

So I am following this coreboot v3 + OpenBIOS tutorial Here .

In the instructions I have the following...

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ANSWER

Answered 2018-Jul-20 at 07:09

The examples are not up to date, as you have noticed by the renaming of qemu to qemu-system-x86_64.

I managed to get the examples to work using only the cirrus video card, and by renaming the outputs of the zips (bin - bios files to bios-256k.bin). I did this because by adding the -L option I specify the bios location and qemu will look for a file called bios-256k.bin as the bios. The command to run the bios with cirrus (all done while in the foo directory) was

Source https://stackoverflow.com/questions/49405417

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install coreboot

make
gcc / g++ Because Linux distribution compilers tend to use lots of patches. coreboot does lots of "unusual" things in its build system, some of which break due to those patches, sometimes by gcc aborting, sometimes - and that's worse - by generating broken object code. Two options: use our toolchain (eg. make crosstools-i386) or enable the ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this case).
iasl (for targets with ACPI support)
doxygen (for generating/viewing documentation)
gdb (for better debugging facilities on some targets)
ncurses (for 'make menuconfig' and 'make nconfig')
flex and bison (for regenerating parsers)