Xen refuses to load minimal dom0 kernel

[Julian Stecklina <der_julian@web.de>]

Hello,

I am trying to link a minimal Domain 0 kernel (adapted from the 
Mini-OS), but when Xen tries to build the Domain 0 it panics:

"Domain 0 allocation is too small for kernel image."

which is caused by the following code in xen/arch/x86/domain_build.c:

     order = get_order_from_bytes(v_end - dsi.v_start);
     if ( (1UL << order) > nr_pages )
         panic("Domain 0 allocation is too small for kernel image.\n");

The linker script I am using is adapted from the Mini-OS and links .text 
  at 0xC0000000 + 0x100000, just like the Linux kernel does. Does any 
one has any hints what I am doing wrong and what this test actually 
checks for?

Regards,
Julian