Xen devel - Oct 2011 - Need some help about the build xen.efi

On Mon, Oct 31, 2011 at 10:10:19PM +0800, liang tang
wrote:
> Hi,Jan
> I have download xen unstable tree which include your efi patch,and
> try to build xen.efi ,but there only have xen.gz ,don''t have
xen.efi
> .I find the file xen\arch\x86\efi\disable have report some error :
> ld don''t  support -m i386pep.  my gcc version is 4.6.1.
> if modify the i386pep to elf_x86_64 ,the build can continue ,and
Right, but that is not correct. The i386pep defines what type of executable
the binary will be. You do not want an x86_64 ELF, you want an i386
Portable Executable Program (I think that is what PEP stands for).

Google should have some details on how build/install an cross compiler for
i386pep.
> report other error --subsystem=10 and
> --image-base=0xffff82c480000000 unrecognized.
> do you have any suggestion about that?  thank you very much!
> 
> the detail is follow.
> ld: unrecognized option ''--image-base=0xffff82c480000000''
> 
> In the xen/arch/x86/efi/disabled
> ld: unrecognized emulation mode: i386pep
> Supported emulations: elf_x86_64 elf32_x86_64 elf_i386 i386linux elf_l1om
> 
> liang.
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

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>>> On 31.10.11 at 15:10, liang tang <liang.tang@oracle.com>
wrote:
> Hi,Jan
> I have download xen unstable tree which include your efi patch,and try 
> to build xen.efi ,but there only have xen.gz ,don''t have xen.efi
.I find
> the file xen\arch\x86\efi\disable have report some error : ld
don''t
> support -m i386pep.  my gcc version is 4.6.1.
Apart from an up-to-date compiler you also need an up-to-date (and
properly configured) static linker (binutils 2.22 will be the first upstream
version to have the necessary support).
> if modify the i386pep to elf_x86_64 ,the build can continue ,and report 
> other error --subsystem=10 and --image-base=0xffff82c480000000
unrecognized.
> do you have any suggestion about that?  thank you very much!
> 
> the detail is follow.
> ld: unrecognized option ''--image-base=0xffff82c480000000''
Quite obviously, as it''s wrong.. You want an EFI binary, not an ELF
one.
> In the xen/arch/x86/efi/disabled
> ld: unrecognized emulation mode: i386pep
> Supported emulations: elf_x86_64 elf32_x86_64 elf_i386 i386linux elf_l1om
That just points out what I said above about the ld to use.

Jan


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Hi,konrad,Jan
Thank you very much for your help, now i can build xen.efi and i use 
basevideo and cfg file
kernel=vmlinuz-3.0.0+
ramdisk=initramfs-3.0.0+.img

after run xen.efi I got debug message "tangl debug xen loader debug 1"
don''t got the "tangl debug xen loader debug 2" .
     PrintStr(L"tangl debug xen loader debug 1\n");
     status = efi_bs->ExitBootServices(ImageHandle, map_key);
     if ( EFI_ERROR(status) )
         PrintErrMesg(L"Cannot exit boot services", status);

     PrintStr(L"tangl debug xen loader debug 2\n");

if I mark //status = efi_bs->ExitBootServices(ImageHandle, map_key); xen 
will halt in here load the domain 0.


     if ( (rc = bzimage_parse(image_base, &image_start, &image_len)) !=
0 )
         return rc;
is configure file ok? any idea about that?
thank you very much!

On 2011-11-2 18:34, Jan Beulich wrote:
>>>> On 31.10.11 at 15:10, liang tang<liang.tang@oracle.com> 
wrote:
>> Hi,Jan
>> I have download xen unstable tree which include your efi patch,and try
>> to build xen.efi ,but there only have xen.gz ,don''t have
xen.efi .I find
>> the file xen\arch\x86\efi\disable have report some error : ld
don''t
>> support -m i386pep.  my gcc version is 4.6.1.
> Apart from an up-to-date compiler you also need an up-to-date (and
> properly configured) static linker (binutils 2.22 will be the first
upstream
> version to have the necessary support).
>
>> if modify the i386pep to elf_x86_64 ,the build can continue ,and report
>> other error --subsystem=10 and --image-base=0xffff82c480000000
unrecognized.
>> do you have any suggestion about that?  thank you very much!
>>
>> the detail is follow.
>> ld: unrecognized option
''--image-base=0xffff82c480000000''
> Quite obviously, as it''s wrong.. You want an EFI binary, not an
ELF
> one.
>
>> In the xen/arch/x86/efi/disabled
>> ld: unrecognized emulation mode: i386pep
>> Supported emulations: elf_x86_64 elf32_x86_64 elf_i386 i386linux
elf_l1om
> That just points out what I said above about the ld to use.
>
> Jan
>
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>>> On 03.11.11 at 10:59, liang tang <liang.tang@oracle.com>
wrote:
> Hi,konrad,Jan
> Thank you very much for your help, now i can build xen.efi and i use 
> basevideo and cfg file
> kernel=vmlinuz-3.0.0+
> ramdisk=initramfs-3.0.0+.img
> 
> after run xen.efi I got debug message "tangl debug xen loader debug
1"
> don''t got the "tangl debug xen loader debug 2" .
>      PrintStr(L"tangl debug xen loader debug 1\n");
>      status = efi_bs->ExitBootServices(ImageHandle, map_key);
>      if ( EFI_ERROR(status) )
>          PrintErrMesg(L"Cannot exit boot services", status);
> 
>      PrintStr(L"tangl debug xen loader debug 2\n");
You can''t PrintStr() anymore after ExitBootServices().
> if I mark //status = efi_bs->ExitBootServices(ImageHandle, map_key); xen
> will halt in here load the domain 0.
And you also can''t just arbitrarily remove code and expect things to
still work.
> 
>      if ( (rc = bzimage_parse(image_base, &image_start,
&image_len)) != 0 )
>          return rc;
> is configure file ok?
Looks like it is (otherwise you would see some sort of error message).
> any idea about that?
If you''re having real problems, the may be connected to the EFI
implementation on your system and/or the EFI version being too
old (no minimum version was established so far, but it may well be
that some things aren''t working as expected in older versions).

I take it that native Linux boots okay on that system?

Jan



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