Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage

"H. Peter Anvin" <[email protected]> writes:

> Eric W. Biederman wrote:
>> 
>> So we won't do this casually and if it there are real problems we will
>> remove the ELF magic number.
>> 
>
> I think we can use ELF-compatible format just fine, but it would make
> more sense to use a non-ELF magic number from the start, instead of
> signalling it with a note.  Since bootloaders need to be aware, anyway,
> they can just detect this magic and treat is as an Linux calling
> convention ELF image, or they can not detect it, and treat it as a
> bzImage.  As a side benefit, we:
>
> a) can use a magic number that contains a jump instruction (to keep the
> non-bootsector happy);
> b) get a proper Linux kernel magic number.

To the best of my knowledge I have already resolved both of those concerns,
in my current code.

Eric
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---

• References:
  • [PATCH] [0/22] x86 candidate patches for review II: 64bit relocatable kernel
    • From: Andi Kleen <[email protected]>
  • [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
    • From: Andi Kleen <[email protected]>
  • Re: [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
    • From: Jeff Garzik <[email protected]>
  • Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
    • From: [email protected] (Eric W. Biederman)
  • Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
    • From: Jeremy Fitzhardinge <[email protected]>
  • Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
    • From: [email protected] (Eric W. Biederman)
  • Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
    • From: Jeremy Fitzhardinge <[email protected]>
  • Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
    • From: Gerd Hoffmann <[email protected]>
  • Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
    • From: Jeremy Fitzhardinge <[email protected]>
  • Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
    • From: "H. Peter Anvin" <[email protected]>
  • Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
    • From: [email protected] (Eric W. Biederman)
  • Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
    • From: "H. Peter Anvin" <[email protected]>

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