Re: [PATCH 00/18] x86: multiboot2 protocol support

[João Jerónimo]

Hello,

Is it planned to have the boot loader set up long mode for the kernel 
(in BIOS systems) in a future multiboot version?
And, before someone talks about that, I know that long mode requires 
paging to be set up and enabled. As far as I know some OS loaders do this.

Also, something I think would be interesting to have, is a "safe" memory 
map, that marks the kernel area as "used" and things like that. :-)

JJ



On 30-01-2015 17:54, Daniel Kiper wrote:
> Hi,
>
> I am sending, long awaited, first version of multiboot2 protocol
> support for legacy BIOS and EFI platforms.
>
> The final goal is xen.efi binary file which could be loaded by EFI
> loader, multiboot (v1) protocol (only on legacy BIOS platforms) and
> multiboot2 protocol. This way we will have:
>    - smaller Xen code base,
>    - one code base for xen.gz and xen.efi,
>    - one build method for xen.gz and xen.efi;
>      xen.efi will be extracted from xen file
>      using objcopy; PE header will be contained
>      in ELF file and will precede Xen code,
>    - xen.efi build will not so strongly depend
>      on a given GCC and binutils version.
>
> GRUB2 patch series will follow this patch series.
>
> GRUB2 guys should check patch #18 but I am sending
> to you all Xen related patches just in case.