2010-01-07 21:27:49 +03:00
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- SeaBIOS (bios.bin) is the successor of pc bios.
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See http://www.seabios.org/ for more information.
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2008-12-19 19:22:03 +03:00
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2004-06-25 19:02:13 +04:00
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- The VGA BIOS and the Cirrus VGA BIOS come from the LGPL VGA bios
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2009-09-04 19:13:29 +04:00
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project (http://www.nongnu.org/vgabios/).
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2004-07-10 20:57:29 +04:00
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2006-06-14 16:36:32 +04:00
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- OpenBIOS (http://www.openbios.org/) is a free (GPL v2) portable
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firmware implementation. The goal is to implement a 100% IEEE
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1275-1994 (referred to as Open Firmware) compliant firmware.
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2011-08-30 01:13:29 +04:00
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The included images for PowerPC (for 32 and 64 bit PPC CPUs),
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2013-10-16 00:03:04 +04:00
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Sparc32 (including QEMU,tcx.bin and QEMU,cgthree.bin) and Sparc64 are built
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2014-03-10 12:48:31 +04:00
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from OpenBIOS SVN revision 1280.
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2007-01-05 20:41:07 +03:00
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Add SLOF-based partition firmware for pSeries machine, allowing more boot options
Currently, the emulated pSeries machine requires the use of the
-kernel parameter in order to explicitly load a guest kernel. This
means booting from the virtual disk, cdrom or network is not possible.
This patch addresses this limitation by inserting a within-partition
firmware image (derived from the "SLOF" free Open Firmware project).
If -kernel is not specified, qemu will now load the SLOF image, which
has access to the qemu boot device list through the device tree, and
can boot from any of the usual virtual devices.
In order to support the new firmware, an extension to the emulated
machine/hypervisor is necessary. Unlike Linux, which expects
multi-CPU entry to be handled kexec() style, the SLOF firmware expects
only one CPU to be active at entry, and to use a hypervisor RTAS
method to enable the other CPUs one by one.
This patch also implements this 'start-cpu' method, so that SLOF can
start the secondary CPUs and marshal them into the kexec() holding
pattern ready for entry into the guest OS. Linux should, and in the
future might directly use the start-cpu method to enable initially
disabled CPUs, but for now it does require kexec() entry.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-04-01 08:15:34 +04:00
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- SLOF (Slimline Open Firmware) is a free IEEE 1275 Open Firmware
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implementation for certain IBM POWER hardware. The sources are at
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2013-04-30 07:42:23 +04:00
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https://github.com/aik/SLOF, and the image currently in qemu is
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2022-07-19 10:48:03 +03:00
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built from git tag qemu-slof-20220719.
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Add SLOF-based partition firmware for pSeries machine, allowing more boot options
Currently, the emulated pSeries machine requires the use of the
-kernel parameter in order to explicitly load a guest kernel. This
means booting from the virtual disk, cdrom or network is not possible.
This patch addresses this limitation by inserting a within-partition
firmware image (derived from the "SLOF" free Open Firmware project).
If -kernel is not specified, qemu will now load the SLOF image, which
has access to the qemu boot device list through the device tree, and
can boot from any of the usual virtual devices.
In order to support the new firmware, an extension to the emulated
machine/hypervisor is necessary. Unlike Linux, which expects
multi-CPU entry to be handled kexec() style, the SLOF firmware expects
only one CPU to be active at entry, and to use a hypervisor RTAS
method to enable the other CPUs one by one.
This patch also implements this 'start-cpu' method, so that SLOF can
start the secondary CPUs and marshal them into the kexec() holding
pattern ready for entry into the guest OS. Linux should, and in the
future might directly use the start-cpu method to enable initially
disabled CPUs, but for now it does require kexec() entry.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-04-01 08:15:34 +04:00
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spapr: Implement Open Firmware client interface
The PAPR platform describes an OS environment that's presented by
a combination of a hypervisor and firmware. The features it specifies
require collaboration between the firmware and the hypervisor.
Since the beginning, the runtime component of the firmware (RTAS) has
been implemented as a 20 byte shim which simply forwards it to
a hypercall implemented in qemu. The boot time firmware component is
SLOF - but a build that's specific to qemu, and has always needed to be
updated in sync with it. Even though we've managed to limit the amount
of runtime communication we need between qemu and SLOF, there's some,
and it has become increasingly awkward to handle as we've implemented
new features.
This implements a boot time OF client interface (CI) which is
enabled by a new "x-vof" pseries machine option (stands for "Virtual Open
Firmware). When enabled, QEMU implements the custom H_OF_CLIENT hcall
which implements Open Firmware Client Interface (OF CI). This allows
using a smaller stateless firmware which does not have to manage
the device tree.
The new "vof.bin" firmware image is included with source code under
pc-bios/. It also includes RTAS blob.
This implements a handful of CI methods just to get -kernel/-initrd
working. In particular, this implements the device tree fetching and
simple memory allocator - "claim" (an OF CI memory allocator) and updates
"/memory@0/available" to report the client about available memory.
This implements changing some device tree properties which we know how
to deal with, the rest is ignored. To allow changes, this skips
fdt_pack() when x-vof=on as not packing the blob leaves some room for
appending.
In absence of SLOF, this assigns phandles to device tree nodes to make
device tree traversing work.
When x-vof=on, this adds "/chosen" every time QEMU (re)builds a tree.
This adds basic instances support which are managed by a hash map
ihandle -> [phandle].
Before the guest started, the used memory is:
0..e60 - the initial firmware
8000..10000 - stack
400000.. - kernel
3ea0000.. - initramdisk
This OF CI does not implement "interpret".
Unlike SLOF, this does not format uninitialized nvram. Instead, this
includes a disk image with pre-formatted nvram.
With this basic support, this can only boot into kernel directly.
However this is just enough for the petitboot kernel and initradmdisk to
boot from any possible source. Note this requires reasonably recent guest
kernel with:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=df5be5be8735
The immediate benefit is much faster booting time which especially
crucial with fully emulated early CPU bring up environments. Also this
may come handy when/if GRUB-in-the-userspace sees light of the day.
This separates VOF and sPAPR in a hope that VOF bits may be reused by
other POWERPC boards which do not support pSeries.
This assumes potential support for booting from QEMU backends
such as blockdev or netdev without devices/drivers used.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20210625055155.2252896-1-aik@ozlabs.ru>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
[dwg: Adjusted some includes which broke compile in some more obscure
compilation setups]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-06-25 08:51:55 +03:00
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- VOF (Virtual Open Firmware) is a minimalistic firmware to work with
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-machine pseries,x-vof=on. When enabled, the firmware acts as a slim shim and
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QEMU implements parts of the IEEE 1275 Open Firmware interface.
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2011-04-18 21:46:41 +04:00
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- The PXE roms come from the iPXE project. Built with BANNER_TIME 0.
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Sources available at http://ipxe.org. Vendor:Device ID -> ROM mapping:
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8086:100e -> pxe-e1000.rom
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8086:1209 -> pxe-eepro100.rom
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1050:0940 -> pxe-ne2k_pci.rom
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1022:2000 -> pxe-pcnet.rom
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10ec:8139 -> pxe-rtl8139.rom
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1af4:1000 -> pxe-virtio.rom
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2010-04-20 21:37:13 +04:00
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2011-06-24 22:58:37 +04:00
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- The sources for the Alpha palcode image is available from:
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2018-11-08 14:15:30 +03:00
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https://github.com/rth7680/qemu-palcode.git
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2014-01-20 03:25:40 +04:00
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- The u-boot binary for e500 comes from the upstream denx u-boot project where
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it was compiled using the qemu-ppce500 target.
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2021-01-11 14:50:16 +03:00
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A git mirror is available at: https://gitlab.com/qemu-project/u-boot.git
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2014-01-20 03:25:40 +04:00
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The hash used to compile the current version is: 2072e72
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2016-10-22 12:46:34 +03:00
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- Skiboot (https://github.com/open-power/skiboot/) is an OPAL
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(OpenPower Abstraction Layer) firmware for OpenPOWER systems. It can
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run an hypervisor OS or simply a host OS on the "baremetal"
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platform, also known as the PowerNV (Non-Virtualized) platform.
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2017-05-01 16:43:30 +03:00
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- QemuMacDrivers (https://github.com/ozbenh/QemuMacDrivers) is a project to
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provide virtualised drivers for PPC MacOS guests.
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2019-03-08 02:24:14 +03:00
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- The "edk2-*.fd.bz2" images are platform firmware binaries and matching UEFI
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variable store templates built from the TianoCore community's EFI Development
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Kit II project
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<https://github.com/tianocore/tianocore.github.io/wiki/EDK-II>. The images
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2023-03-09 13:09:42 +03:00
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were built at git tag "edk2-stable202302". The firmware binaries bundle parts
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of the OpenSSL project, at git tag "OpenSSL_1_1_1s" (the OpenSSL tag is a
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2019-06-06 13:49:02 +03:00
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function of the edk2 tag). Parts of the Berkeley SoftFloat library are
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bundled as well, at Release 3e plus a subsequent typo fix (commit
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b64af41c3276f97f0e181920400ee056b9c88037), as an OpenSSL dependency on 32-bit
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ARM. Licensing information is given in "edk2-licenses.txt". The image files
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are described by the JSON documents in the "pc-bios/descriptors" directory,
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which conform to the "docs/interop/firmware.json" schema.
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2019-07-16 21:47:22 +03:00
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- OpenSBI (https://github.com/riscv/opensbi) aims to provide an open-source
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reference implementation of the RISC-V Supervisor Binary Interface (SBI)
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specifications for platform-specific firmwares executing in M-mode. For all
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supported platforms, OpenSBI provides several runtime firmware examples.
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These example firmwares can be used to replace the legacy riscv-pk bootloader
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and enable the use of well-known bootloaders such as U-Boot.
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OpenSBI is distributed under the terms of the BSD 2-clause license
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("Simplified BSD License" or "FreeBSD License", SPDX: BSD-2-Clause). OpenSBI
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source code also contains code reused from other projects desribed here:
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https://github.com/riscv/opensbi/blob/master/ThirdPartyNotices.md.
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2020-09-11 08:20:53 +03:00
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- npcm7xx_bootrom.bin is a simplified, free (Apache 2.0) boot ROM for Nuvoton
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NPCM7xx BMC devices. It currently implements the bare minimum to load, parse,
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initialize and run boot images stored in SPI flash, but may grow more
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features over time as needed. The source code is available at:
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https://github.com/google/vbootrom
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