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-20220719.
  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 - The PXE roms come from the iPXE project. Built with BANNER_TIME 0.
  24   Sources available at http://ipxe.org.  Vendor:Device ID -> ROM mapping:
  25
  26         8086:100e -> pxe-e1000.rom
  27         8086:1209 -> pxe-eepro100.rom
  28         1050:0940 -> pxe-ne2k_pci.rom
  29         1022:2000 -> pxe-pcnet.rom
  30         10ec:8139 -> pxe-rtl8139.rom
  31         1af4:1000 -> pxe-virtio.rom
  32
  33 - The sources for the Alpha palcode image is available from:
  34   https://github.com/rth7680/qemu-palcode.git
  35
  36 - The u-boot binary for e500 comes from the upstream denx u-boot project where
  37   it was compiled using the qemu-ppce500 target.
  38   A git mirror is available at: https://gitlab.com/qemu-project/u-boot.git
  39   The hash used to compile the current version is: 2072e72
  40
  41 - Skiboot (https://github.com/open-power/skiboot/) is an OPAL
  42   (OpenPower Abstraction Layer) firmware for OpenPOWER systems. It can
  43   run an hypervisor OS or simply a host OS on the "baremetal"
  44   platform, also known as the PowerNV (Non-Virtualized) platform.
  45
  46 - QemuMacDrivers (https://github.com/ozbenh/QemuMacDrivers) is a project to
  47   provide virtualised drivers for PPC MacOS guests.
  48
  49 - The "edk2-*.fd.bz2" images are platform firmware binaries and matching UEFI
  50   variable store templates built from the TianoCore community's EFI Development
  51   Kit II project
  52   <https://github.com/tianocore/tianocore.github.io/wiki/EDK-II>. The images
  53   were built at git tag "edk2-stable202302". The firmware binaries bundle parts
  54   of the OpenSSL project, at git tag "OpenSSL_1_1_1s" (the OpenSSL tag is a
  55   function of the edk2 tag). Parts of the Berkeley SoftFloat library are
  56   bundled as well, at Release 3e plus a subsequent typo fix (commit
  57   b64af41c3276f97f0e181920400ee056b9c88037), as an OpenSSL dependency on 32-bit
  58   ARM. Licensing information is given in "edk2-licenses.txt". The image files
  59   are described by the JSON documents in the "pc-bios/descriptors" directory,
  60   which conform to the "docs/interop/firmware.json" schema.
  61
  62 - OpenSBI (https://github.com/riscv/opensbi) aims to provide an open-source
  63   reference implementation of the RISC-V Supervisor Binary Interface (SBI)
  64   specifications for platform-specific firmwares executing in M-mode. For all
  65   supported platforms, OpenSBI provides several runtime firmware examples.
  66   These example firmwares can be used to replace the legacy riscv-pk bootloader
  67   and enable the use of well-known bootloaders such as U-Boot.
  68   OpenSBI is distributed under the terms of the BSD 2-clause license
  69   ("Simplified BSD License" or "FreeBSD License", SPDX: BSD-2-Clause). OpenSBI
  70   source code also contains code reused from other projects desribed here:
  71   https://github.com/riscv/opensbi/blob/master/ThirdPartyNotices.md.
  72
  73 - npcm7xx_bootrom.bin is a simplified, free (Apache 2.0) boot ROM for Nuvoton
  74   NPCM7xx BMC devices. It currently implements the bare minimum to load, parse,
  75   initialize and run boot images stored in SPI flash, but may grow more
  76   features over time as needed. The source code is available at:
  77   https://github.com/google/vbootrom