Subversion Repositories HelenOS

#
# Copyright (C) 2001-2004 Jakub Jermar
# Copyright (C) 2005-2006 Martin Decky
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# - Redistributions of source code must retain the above copyright
#   notice, this list of conditions and the following disclaimer.
# - Redistributions in binary form must reproduce the above copyright
#   notice, this list of conditions and the following disclaimer in the
#   documentation and/or other materials provided with the distribution.
# - The name of the author may not be used to endorse or promote products
#   derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

#include <arch/boot/boot.h>
#include <arch/mm/page.h>
#include <arch/pm.h>

.section __xen_guest
    .ascii "GUEST_OS=HelenOS,"
    .ascii "XEN_VER=xen-3.0,"
    .ascii "HYPERCALL_PAGE=0x0000,"
    .ascii "LOADER=generic,"
    .ascii "FEATURES=writable_page_tables"
    .byte   0

.text

.code32
.align 4
.global kernel_image_start
    
kernel_image_start:
    # copy start_info (esi initialized by Xen)
    
    movl $start_info, %edi
    movl $START_INFO_SIZE >> 2, %ecx
    cld
    rep movsb
    
    # switch to temporal kernel stack
    
    movl $kernel_stack, %esp
    
    call arch_pre_main
    call main_bsp                               # never returns

    cli
    hlt

kernel_stack_bottom:
    .space TEMP_STACK_SIZE
kernel_stack:

.section K_TEXT_START, "aw", @progbits
.global hypercall_page
.org 0
hypercall_page:
    .space PAGE_SIZE

.global shared_info
.org 0x1000
shared_info:
    .space PAGE_SIZE

.global console_page
.org 0x2000
console_page:
    .space PAGE_SIZE