The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/amd64/amd64/locore.S

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 2003 Peter Wemm <peter@FreeBSD.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD$
   27  */
   28 
   29 #include <machine/asmacros.h>
   30 #include <machine/psl.h>
   31 #include <machine/pmap.h>
   32 #include <machine/specialreg.h>
   33 
   34 #include "assym.s"
   35 
   36 /*
   37  * Compiled KERNBASE location
   38  */
   39         .globl  kernbase,loc_PTmap,loc_PDmap,loc_PDPmap,loc_PML4map,loc_PML4pml4e,dmapbase,dmapend
   40         .set    kernbase,KERNBASE
   41         .set    loc_PTmap,addr_PTmap
   42         .set    loc_PDmap,addr_PDmap
   43         .set    loc_PDPmap,addr_PDPmap
   44         .set    loc_PML4map,addr_PML4map
   45         .set    loc_PML4pml4e,addr_PML4pml4e
   46         .set    dmapbase,DMAP_MIN_ADDRESS
   47         .set    dmapend,DMAP_MAX_ADDRESS
   48 
   49         .text
   50 /**********************************************************************
   51  *
   52  * This is where the loader trampoline start us, set the ball rolling...
   53  *
   54  * We are called with the stack looking like this:
   55  * 0(%rsp) = 32 bit return address (cannot be used)
   56  * 4(%rsp) = 32 bit modulep
   57  * 8(%rsp) = 32 bit kernend
   58  *
   59  * We are already in long mode, on a 64 bit %cs and running at KERNBASE.
   60  */
   61 NON_GPROF_ENTRY(btext)
   62 
   63         /* Tell the bios to warmboot next time */
   64         movw    $0x1234,0x472
   65 
   66         /* Don't trust what the loader gives for rflags. */
   67         pushq   $PSL_KERNEL
   68         popfq
   69 
   70         /* Find the metadata pointers before we lose them */
   71         movq    %rsp, %rbp
   72         movl    4(%rbp),%edi            /* modulep (arg 1) */
   73         movl    8(%rbp),%esi            /* kernend (arg 2) */
   74 
   75         /* Get onto a stack that we can trust - there is no going back now. */
   76         movq    $bootstack,%rsp
   77         xorl    %ebp, %ebp
   78 
   79         call    hammer_time             /* set up cpu for unix operation */
   80         movq    %rax,%rsp               /* set up kstack for mi_startup() */
   81         call    mi_startup              /* autoconfiguration, mountroot etc */
   82 0:      hlt
   83         jmp     0b
   84 
   85         .bss
   86         ALIGN_DATA                      /* just to be sure */
   87         .space  0x1000                  /* space for bootstack - temporary stack */
   88 bootstack:

Cache object: 7b147d0b4429d0cf0d86f55a04367900


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.