I got a new toy this week: An HP Envy X2 system. This is one of those shiny new Qualcomm Snapdragon based Windows tablet/notebook hybrid things.
While running Windows on those is actually not a terribly bad experience now that WSL is out, I would like to see Linux run on those as well in the future. Unfortunately as far as I'm aware so far nobody was able to run self built binaries on the built-in UEFI version. Turns out, it's a problem with aligning the start of the header to 4k. Once we do that, binaries can be loaded just fine and run. The reason behind that is simple: Its firmware tries to ensure NX protection flags and can do so only when the code is 4K aligned. So to maintain compatibility with that device, this patch set just bumps the header alignment to 4K always on arm64-efi. This way we improve overall compatibility - there surely will be more devices coming with similar constraints. v1 -> v2: - Remove explicit device wording from patch - Use GRUB_EFI_PAGE_SIZE Alexander Graf (2): mkimage: Simplify header size logic mkimage: arm64-efi: Align first section to page util/mkimage.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) -- 2.12.3 _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
