arch/i386/xen/xen-head.S

   1 /* Xen-specific pieces of head.S, intended to be included in the right
   2         place in head.S */
   3
   4 #ifdef CONFIG_XEN
   5
   6 #include <linux/elfnote.h>
   7 #include <asm/boot.h>
   8 #include <xen/interface/elfnote.h>
   9
  10 .pushsection .init.text
  11 ENTRY(startup_xen)
  12         movl %esi,xen_start_info
  13         cld
  14         movl $(init_thread_union+THREAD_SIZE),%esp
  15         jmp xen_start_kernel
  16 .popsection
  17
  18 .pushsection .bss.page_aligned
  19         .align PAGE_SIZE_asm
  20 ENTRY(hypercall_page)
  21         .skip 0x1000
  22 .popsection
  23
  24         ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS,       .asciz "linux")
  25         ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION,  .asciz "2.6")
  26         ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION,    .asciz "xen-3.0")
  27         ELFNOTE(Xen, XEN_ELFNOTE_VIRT_BASE,      .long  __PAGE_OFFSET)
  28         ELFNOTE(Xen, XEN_ELFNOTE_ENTRY,          .long  startup_xen)
  29         ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, .long  hypercall_page)
  30         ELFNOTE(Xen, XEN_ELFNOTE_FEATURES,       .asciz "!writable_page_tables|pae_pgdir_above_4gb")
  31 #ifdef CONFIG_X86_PAE
  32         ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE,       .asciz "yes")
  33 #else
  34         ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE,       .asciz "no")
  35 #endif
  36         ELFNOTE(Xen, XEN_ELFNOTE_LOADER,         .asciz "generic")
  37
  38 #endif /*CONFIG_XEN */