arch/x86/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 <linux/init.h>
   8
   9 #include <asm/boot.h>
  10 #include <asm/asm.h>
  11
  12 #include <xen/interface/elfnote.h>
  13 #include <asm/xen/interface.h>
  14
  15         __INIT
  16 ENTRY(startup_xen)
  17         movl %esi,xen_start_info
  18         cld
  19         movl $(init_thread_union+THREAD_SIZE),%esp
  20         jmp xen_start_kernel
  21
  22         __FINIT
  23
  24 .pushsection .text
  25         .align PAGE_SIZE_asm
  26 ENTRY(hypercall_page)
  27         .skip PAGE_SIZE_asm
  28 .popsection
  29
  30         ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS,       .asciz "linux")
  31         ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION,  .asciz "2.6")
  32         ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION,    .asciz "xen-3.0")
  33         ELFNOTE(Xen, XEN_ELFNOTE_VIRT_BASE,      _ASM_PTR __PAGE_OFFSET)
  34         ELFNOTE(Xen, XEN_ELFNOTE_ENTRY,          _ASM_PTR startup_xen)
  35         ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, _ASM_PTR hypercall_page)
  36         ELFNOTE(Xen, XEN_ELFNOTE_FEATURES,       .asciz "!writable_page_tables|pae_pgdir_above_4gb")
  37         ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE,       .asciz "yes")
  38         ELFNOTE(Xen, XEN_ELFNOTE_LOADER,         .asciz "generic")
  39         ELFNOTE(Xen, XEN_ELFNOTE_L1_MFN_VALID,
  40                 .quad _PAGE_PRESENT; .quad _PAGE_PRESENT)
  41         ELFNOTE(Xen, XEN_ELFNOTE_SUSPEND_CANCEL, .long 1)
  42         ELFNOTE(Xen, XEN_ELFNOTE_HV_START_LOW,   _ASM_PTR __HYPERVISOR_VIRT_START)
  43
  44 #endif /*CONFIG_XEN */