xref: /openbmc/qemu/pc-bios/README (revision c5c0fdbe)
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
78