On Fri, 3 Mar 2023 at 16:01, Ard Biesheuvel <a...@kernel.org> wrote: > > Fedora 39 will ship its arm64 kernels in the new generic EFI zboot > format, using gzip compression for the payload. > > For doing EFI boot in QEMU, this is completely transparent, as the > firmware or bootloader will take care of this. However, for direct > kernel boot without firmware, we will lose the ability to boot such > distro kernels unless we deal with the new format directly. > > EFI zboot images contain metadata in the header regarding the placement > of the compressed payload inside the image, and the type of compression > used. This means we can wire up the existing gzip support without too > much hassle, by parsing the header and grabbing the payload from inside > the loaded zboot image. > > Cc: Peter Maydell <peter.mayd...@linaro.org> > Cc: Alex Bennée <alex.ben...@linaro.org> > Cc: Richard Henderson <richard.hender...@linaro.org> > Cc: Philippe Mathieu-Daudé <f4...@amsat.org> > Signed-off-by: Ard Biesheuvel <a...@kernel.org> > ---
Applied to target-arm.next, thanks. -- PMM
