On Wed, 15 Apr, at 04:32:24PM, Roy Franz wrote: > Until now, the EFI stub was only setting the 32 bit cmd_line_ptr in > the setup_header structure, so on 64 bit platforms this could be truncated. > This patch adds setting the upper bits of the buffer address in > ext_cmd_line_ptr. This case was likely never hit, as the allocation > for this buffer is done at the lowest available address. Only > x86_64 kernels have this problem, as the 1-1 mapping mandated > by EFI ensures that all memory is 32 bit addressable on 32 bit > platforms. The EFI stub does not support mixed mode, so the > 32 bit kernel on 64 bit firmware case does not need to be handled. > > Signed-off-by: Roy Franz <[email protected]> > --- > This is a follow-up to "x86_64/efi: enforce 32 bit address for command line > buffer", > which had the wrong fix to the truncation of address. > > arch/x86/boot/compressed/eboot.c | 2 ++ > 1 file changed, 2 insertions(+) Looks good to me Roy, thanks applied!
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