Re: EFI Boot on MacPro

[peter cros]

It is here - (return  checked in refit efi shell and gui) 
Can't go any further until that is fixed.

kern/x86_64/efi/startup.S
-----------------------

This hangs -

codestart:
    movq    %rcx, EXT_C(grub_efi_image_handle)
    movq    %rdx, EXT_C(grub_efi_system_table)
 +ret
    call    EXT_C(grub_main)
    ret
-------------------------

This returns - 

codestart:
 +ret
    movq    %rcx, EXT_C(grub_efi_image_handle)
    movq    %rdx, EXT_C(grub_efi_system_table)
    call    EXT_C(grub_main)
    ret
--------------------------

Would really like to see the solution for the imac8,1.

peter cros

On Sun, Jan 11, 2009 at 6:35 PM, Bean <address@hidden> wrote:

On Sun, Jan 11, 2009 at 10:44 AM, peter cros <address@hidden> wrote:
> iMac8,1 - grub.efi x86_64 hangs.
>
> built and run on the imac81 --with-platfrom=efi --target=x86_64
> version 1913 and 1940 (current).
>
> Host ubuntu 810 amd64 kernel Linux im64 2.6.27-9-server #1 SMP Thu Nov 20
> 22:56:07 UTC 2008 x86_64 GNU/Linux
>
> grub.efi appears to be accepted by the firmware (started), but hangs
> immediately without any message.
> Tried with macosx bless, and with rEFIt, on HD and external usb.
>
>  This differs from the 64/32 mismatch behaviour with the refit message
> 'unsupported while loading grub.efi') or the apple boot default to MacOSX.
>
> The x86_64 reult is different - bug in the start up?
>
> I will try to get some debug info.

Hi,

I only test the x86_64 version in macbook, which works nicely. Perhaps
you can add some debug code in kern/main.c

void
grub_main (void)
{
 /* First of all, initialize the machine.  */
 grub_machine_init ();

+ grub_env_set ("debug", "all");
+ grub_printf ("init\n");

 /* Hello.  */
 grub_setcolorstate (GRUB_TERM_COLOR_HIGHLIGHT);
 grub_printf ("Welcome to GRUB!\n\n");
 grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);


Also, the tsc code may has some effect, remove grub_tsc_init in
kern/i366/efi/init.c:

void
grub_machine_init (void)
{
 grub_efi_init ();
-grub_tsc_init ();
}

--

Bean


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