ARM: decompressor: run decompressor in place if loaded via UEFI
The decompressor can load from anywhere in memory, and the only reason the EFI stub code relocates it is to ensure it appears within the first 128 MiB of memory, so that the uncompressed kernel ends up at the right offset in memory. We can short circuit this, and simply jump into the decompressor startup code at the point where it knows where the base of memory lives. This also means there is no need to disable the MMU and caches, create new page tables and re-enable them. Signed-off-by:Ard Biesheuvel <ardb@kernel.org> Reviewed-by:
Nicolas Pitre <nico@fluxnic.net>
parent
35d57d12
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