It is useful to be able to inspect things before the OS is actually
booted, perhaps to check that all is well or to adjust the kernel
command-line. Implement the 'read_all()' method to allow this.
Provide a simple test to check that the images are found.
For now it is not possible to actually continue the uninterrupted boot,
without re-reading all the images.
Signed-off-by: Simon Glass <sjg@chromium.org>
The extlinux and PXE code for booting is almost the same. Move it into
the common file so it is easier to keep it in sync.
Signed-off-by: Simon Glass <sjg@chromium.org>
The fallback feature is implemented for extlinux but not for PXE. Move
the code into common files so we can keep both pieces in sync.
Tidy up the comment for set_property() while we are here, fixing the
return value and some missing hyphens.
Signed-off-by: Simon Glass <sjg@chromium.org>
We use the terms 'distro' to mean extlinux but they are not really the
same. 'Distro' could refer to any method of booting a distribution,
whereas extlinux is a particular method.
Also we sometimes use syslinux, but it is better to use the same term in
all cases.
Rename distro to syslinux and also update bootstd uses of syslinux to use
extlinux instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
