In some cases a board may wish to do some final processing before
starting the OS. An example is the EFI app, which may wish to call
exit-boot-services.
Add an event to permit this.
Series-to: concept
Cover-letter:
boot: Allow lmb-allocation of compression buffer with booti
ARM 'booti' images (as created by Linux 'make Image') typically need to
be compressed. At present the decompression buffer is described by a
pair of environment variables: kernel_comp_addr_r and kernel_comp_size
This is quite inflexible, since the buffer size and location must be
pre-set in the environment, before the OS size is known.
For the EFI app, it is quite difficult to work with a fixed buffer. It
is not in control of the memory map so it may be that the requested
buffer address is not available.
This series updates the boot implementation to allow the variables to
be omitted, with lmb allocations done in this case. This resolves the
problem in the EFI app, with kernels which come from extlinux.conf
When the EFI app loads another app, a similar problem is present, but
with the EFI bootmeth, also resolved in this series.
END
Signed-off-by: Simon Glass <sjg@chromium.org>
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