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List:       initramfs
Subject:    Re: [PATCH 1/2] x86/boot/compressed/64: Remove .bss/.pgtable from bzImage
From:       Borislav Petkov <bp () alien8 ! de>
Date:       2020-04-06 17:21:02
Message-ID: 20200406172102.GF2520 () zn ! tnic
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On Mon, Apr 06, 2020 at 03:29:18PM +0200, Ard Biesheuvel wrote:
> > What do you think of the other problem -- that's actually worse to fix,
> > as it won't just be when kaslr is disabled, the startup_64 code will do
> > relocation to the end of init_size and clobber the initrd before getting
> > to the kaslr code, so it will break as soon as the firmware loads the
> > "unified kernel image" at a 2Mb-aligned address. The only thing I can
> > think of is to just unconditionally call efi_relocate_kernel if we were
> > entered via handover_entry?
> >
> 
> Yes, that seems to be the most robust approach.

The commit in question is this one:

d5cdf4cfeac9 ("efi/x86: Don't relocate the kernel unless necessary")

I presume?

I'm guessing it can simply be reverted as it doesn't fix a bug but it is
just an optimization... provided I'm not missing something, of course.

-- 
Regards/Gruss,
    Boris.

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