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.. SPDX-License-Identifier: GPL-2.0+:
QFW Bootmeth
============
`QEMU <https://www.qemu.org/>`_ is a system emulator which is able to boot
Operating Systems. QEMU provides specific support for booting an OS image
provided on the QEMU command line.
When invoked on a bootdev for UCLASS_QFW, this bootmeth reads the kernel
provided by the QEMU `-kernel` argument, the initial ramdisk provided by
`-initrd` and the boot arguments (command line) provided by `-append` into
memory ready for booting.
When the bootflow is booted, the bootmeth tries the `booti` command first, then
falls back to the `bootz` command. U-Boot's 'control' devicetree is passed
through to the kernel.
The compatible string "u-boot,qfw-bootmeth" is used for the driver. It is
present if `CONFIG_QFW` is enabled.
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