pc-bios/README

   1 - SeaBIOS (bios.bin) is the successor of pc bios.
   2   See http://www.seabios.org/ for more information.
   3
   4 - The VGA BIOS and the Cirrus VGA BIOS come from the LGPL VGA bios
   5   project (http://www.nongnu.org/vgabios/).
   6
   7 - OpenBIOS (http://www.openbios.org/) is a free (GPL v2) portable
   8   firmware implementation. The goal is to implement a 100% IEEE
   9   1275-1994 (referred to as Open Firmware) compliant firmware.
  10   The included images for PowerPC (for 32 and 64 bit PPC CPUs),
  11   Sparc32 (including QEMU,tcx.bin and QEMU,cgthree.bin) and Sparc64 are built
  12   from OpenBIOS SVN revision 1280.
  13
  14 - SLOF (Slimline Open Firmware) is a free IEEE 1275 Open Firmware
  15   implementation for certain IBM POWER hardware.  The sources are at
  16   https://github.com/aik/SLOF, and the image currently in qemu is
  17   built from git tag qemu-slof-20220110.
  18
  19 - VOF (Virtual Open Firmware) is a minimalistic firmware to work with
  20   -machine pseries,x-vof=on. When enabled, the firmware acts as a slim shim and
  21   QEMU implements parts of the IEEE 1275 Open Firmware interface.
  22
  23 - sgabios (the Serial Graphics Adapter option ROM) provides a means for
  24   legacy x86 software to communicate with an attached serial console as
  25   if a video card were attached.  The master sources reside in a subversion
  26   repository at http://sgabios.googlecode.com/svn/trunk.  A git mirror is
  27   available at https://gitlab.com/qemu-project/sgabios.git.
  28
  29 - The PXE roms come from the iPXE project. Built with BANNER_TIME 0.
  30   Sources available at http://ipxe.org.  Vendor:Device ID -> ROM mapping:
  31
  32         8086:100e -> pxe-e1000.rom
  33         8086:1209 -> pxe-eepro100.rom
  34         1050:0940 -> pxe-ne2k_pci.rom
  35         1022:2000 -> pxe-pcnet.rom
  36         10ec:8139 -> pxe-rtl8139.rom
  37         1af4:1000 -> pxe-virtio.rom
  38
  39 - The sources for the Alpha palcode image is available from:
  40   https://github.com/rth7680/qemu-palcode.git
  41
  42 - The u-boot binary for e500 comes from the upstream denx u-boot project where
  43   it was compiled using the qemu-ppce500 target.
  44   A git mirror is available at: https://gitlab.com/qemu-project/u-boot.git
  45   The hash used to compile the current version is: 2072e72
  46
  47 - Skiboot (https://github.com/open-power/skiboot/) is an OPAL
  48   (OpenPower Abstraction Layer) firmware for OpenPOWER systems. It can
  49   run an hypervisor OS or simply a host OS on the "baremetal"
  50   platform, also known as the PowerNV (Non-Virtualized) platform.
  51
  52 - QemuMacDrivers (https://github.com/ozbenh/QemuMacDrivers) is a project to
  53   provide virtualised drivers for PPC MacOS guests.
  54
  55 - The "edk2-*.fd.bz2" images are platform firmware binaries and matching UEFI
  56   variable store templates built from the TianoCore community's EFI Development
  57   Kit II project
  58   <https://github.com/tianocore/tianocore.github.io/wiki/EDK-II>. The images
  59   were built at git tag "edk2-stable202008". The firmware binaries bundle parts
  60   of the OpenSSL project, at git tag "OpenSSL_1_1_1g" (the OpenSSL tag is a
  61   function of the edk2 tag). Parts of the Berkeley SoftFloat library are
  62   bundled as well, at Release 3e plus a subsequent typo fix (commit
  63   b64af41c3276f97f0e181920400ee056b9c88037), as an OpenSSL dependency on 32-bit
  64   ARM. Licensing information is given in "edk2-licenses.txt". The image files
  65   are described by the JSON documents in the "pc-bios/descriptors" directory,
  66   which conform to the "docs/interop/firmware.json" schema.
  67
  68 - OpenSBI (https://github.com/riscv/opensbi) aims to provide an open-source
  69   reference implementation of the RISC-V Supervisor Binary Interface (SBI)
  70   specifications for platform-specific firmwares executing in M-mode. For all
  71   supported platforms, OpenSBI provides several runtime firmware examples.
  72   These example firmwares can be used to replace the legacy riscv-pk bootloader
  73   and enable the use of well-known bootloaders such as U-Boot.
  74   OpenSBI is distributed under the terms of the BSD 2-clause license
  75   ("Simplified BSD License" or "FreeBSD License", SPDX: BSD-2-Clause). OpenSBI
  76   source code also contains code reused from other projects desribed here:
  77   https://github.com/riscv/opensbi/blob/master/ThirdPartyNotices.md.
  78
  79 - npcm7xx_bootrom.bin is a simplified, free (Apache 2.0) boot ROM for Nuvoton
  80   NPCM7xx BMC devices. It currently implements the bare minimum to load, parse,
  81   initialize and run boot images stored in SPI flash, but may grow more
  82   features over time as needed. The source code is available at:
  83   https://github.com/google/vbootrom