Unverified Commit 91f3a2f0 authored by Alistair Francis's avatar Alistair Francis Committed by Palmer Dabbelt
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roms: Add OpenSBI version 0.4 

Add OpenSBI version 0.4 as a git submodule and as a prebult binary.

OpenSBI (https://github.com/riscv/opensbi) aims to provide an open-source
reference implementation of the RISC-V Supervisor Binary Interface (SBI)
specifications for platform-specific firmwares executing in M-mode. For all
supported platforms, OpenSBI provides several runtime firmware examples.
These example firmwares can be used to replace the legacy riscv-pk bootloader
and enable the use of well-known bootloaders such as U-Boot.

OpenSBI is distributed under the terms of the BSD 2-clause license
("Simplified BSD License" or "FreeBSD License", SPDX: BSD-2-Clause). OpenSBI
source code also contains code reused from other projects desribed here:
https://github.com/riscv/opensbi/blob/master/ThirdPartyNotices.md

.

In this case all of the code we are using from OpenSBI is BSD 2-clause
as we aren't using the Kendryte code (Apache-2.0) with QEMU and libfdt
is dual licensed as BSD 2-clause (and GPL-2.0+). OpenSBI isn't being
linked with QEMU either it is just being included with QEMU.

Signed-off-by: default avatarAlistair Francis <alistair.francis@wdc.com>
Reviewed-by: default avatarBin Meng <bmeng.cn@gmail.com>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Tested-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarPalmer Dabbelt <palmer@sifive.com>
parent 0b18cfb8

.gitmodules

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@@ -55,3 +55,6 @@ 
[submodule "slirp"]

	path = slirp

	url = https://git.qemu.org/git/libslirp.git

[submodule "roms/opensbi"]

	path = roms/opensbi

	url = 	https://git.qemu.org/git/opensbi.git

LICENSE

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The following points clarify the QEMU license:

The QEMU distribution includes both the QEMU emulator and

various firmware files.  These are separate programs that are

distributed together for our users' convenience, and they have

separate licenses.



1) QEMU as a whole is released under the GNU General Public License,

version 2.

The following points clarify the license of the QEMU emulator:



2) Parts of QEMU have specific licenses which are compatible with the

GNU General Public License, version 2. Hence each source file contains

its own licensing information.  Source files with no licensing information

are released under the GNU General Public License, version 2 or (at your

option) any later version.

1) The QEMU emulator as a whole is released under the GNU General

Public License, version 2.



2) Parts of the QEMU emulator have specific licenses which are compatible

with the GNU General Public License, version 2. Hence each source file

contains its own licensing information.  Source files with no licensing

information are released under the GNU General Public License, version

2 or (at your option) any later version.



As of July 2013, contributions under version 2 of the GNU General Public

License (and no later version) are only accepted for the following files

Makefile

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@@ -770,7 +770,10 @@ palcode-clipper \ 
u-boot.e500 u-boot-sam460-20100605.bin \

qemu_vga.ndrv \

edk2-licenses.txt \

hppa-firmware.img

hppa-firmware.img \

opensbi-riscv32-virt-fw_jump.bin \

opensbi-riscv64-sifive_u-fw_jump.bin opensbi-riscv64-virt-fw_jump.bin





DESCS=50-edk2-i386-secure.json 50-edk2-x86_64-secure.json \

60-edk2-aarch64.json 60-edk2-arm.json 60-edk2-i386.json 60-edk2-x86_64.json

pc-bios/README

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@@ -63,3 +63,14 @@ 
  ARM. Licensing information is given in "edk2-licenses.txt". The image files

  are described by the JSON documents in the "pc-bios/descriptors" directory,

  which conform to the "docs/interop/firmware.json" schema.



- OpenSBI (https://github.com/riscv/opensbi) aims to provide an open-source

  reference implementation of the RISC-V Supervisor Binary Interface (SBI)

  specifications for platform-specific firmwares executing in M-mode. For all

  supported platforms, OpenSBI provides several runtime firmware examples.

  These example firmwares can be used to replace the legacy riscv-pk bootloader

  and enable the use of well-known bootloaders such as U-Boot.

  OpenSBI is distributed under the terms of the BSD 2-clause license

  ("Simplified BSD License" or "FreeBSD License", SPDX: BSD-2-Clause). OpenSBI

  source code also contains code reused from other projects desribed here:

  https://github.com/riscv/opensbi/blob/master/ThirdPartyNotices.md.

pc-bios/opensbi-riscv32-virt-fw_jump.bin

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