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/*
* Copyright (C) 2006-2011 Free Software Foundation
*
* This program is free software ; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation ; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the program ; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <xen/public/elfnote.h>
.section __xen_guest
.ascii "GUEST_OS=GNU Mach"
.ascii ",GUEST_VERSION=1.3"
.ascii ",XEN_VER=xen-3.0"
.ascii ",VIRT_BASE=0xC0000000"
.ascii ",ELF_PADDR_OFFSET=0xC0000000"
.ascii ",HYPERCALL_PAGE=0x2"
#if PAE
.ascii ",PAE=yes[extended-cr3]"
#else
.ascii ",PAE=no"
#endif
.ascii ",LOADER=generic"
#ifdef MACH_PSEUDO_PHYS
.ascii ",FEATURES=pae_pgdir_above_4gb"
#else /* MACH_PSEUDO_PHYS */
.ascii ",FEATURES=!auto_translated_physmap"
#endif
#ifndef MACH_PV_PAGETABLES
.ascii "|!writable_page_tables"
#endif /* MACH_PV_PAGETABLES */
#ifndef MACH_PV_DESCRIPTORS
.ascii "|!writable_descriptor_tables"
#endif /* MACH_PV_DESCRIPTORS */
#ifndef MACH_RING1
.ascii "|!supervisor_mode_kernel"
#endif /* MACH_PV_DESCRIPTORS */
.byte 0
/* Macro taken from linux/include/linux/elfnote.h */
#define ELFNOTE(name, type, desctype, descdata) \
.pushsection .note.name ; \
.align 4 ; \
.long 2f - 1f /* namesz */ ; \
.long 4f - 3f /* descsz */ ; \
.long type ; \
1:.asciz "name" ; \
2:.align 4 ; \
3:desctype descdata ; \
4:.align 4 ; \
.popsection ;
ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS, .asciz, "GNU Mach")
ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION, .asciz, "1.3")
ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION, .asciz, "xen-3.0")
ELFNOTE(Xen, XEN_ELFNOTE_VIRT_BASE, .long, _START)
ELFNOTE(Xen, XEN_ELFNOTE_PADDR_OFFSET, .long, _START)
ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, .long, start)
ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, .long, hypcalls)
#if PAE
ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz, "yes[extended-cr3]")
#else
ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz, "no")
#endif
ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz, "generic")
ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .asciz, ""
#ifdef MACH_PSEUDO_PHYS
"pae_pgdir_above_4gb"
#else /* MACH_PSEUDO_PHYS */
"!auto_translated_physmap"
#endif
#ifndef MACH_PV_PAGETABLES
"|!writable_page_tables"
#endif /* MACH_PV_PAGETABLES */
#ifndef MACH_PV_DESCRIPTORS
"|!writable_descriptor_tables"
#endif /* MACH_PV_DESCRIPTORS */
#ifndef MACH_RING1
"|!supervisor_mode_kernel"
#endif /* MACH_RING1 */
)
#include <mach/machine/asm.h>
#include <i386/i386/i386asm.h>
.text
.globl gdt, ldt
.globl start, _start, gdt
start:
_start:
/* Switch to our own interrupt stack. */
movl $(_intstack+INTSTACK_SIZE),%eax
movl %eax,%esp
/* Reset EFLAGS to a known state. */
pushl $0
popf
/* Push the start_info pointer to be the second argument. */
subl $KERNELBASE,%esi
pushl %esi
/* Fix ifunc entries */
movl $__rel_iplt_start,%esi
movl $__rel_iplt_end,%edi
iplt_cont:
cmpl %edi,%esi
jae iplt_done
movl (%esi),%ebx /* r_offset */
movb 4(%esi),%al /* info */
cmpb $42,%al /* IRELATIVE */
jnz iplt_next
call *(%ebx) /* call ifunc */
movl %eax,(%ebx) /* fixed address */
iplt_next:
addl $8,%esi
jmp iplt_cont
iplt_done:
/* Jump into C code. */
call EXT(c_boot_entry)
/* Those need to be aligned on page boundaries. */
.global hyp_shared_info, hypcalls
.org (start + 0x1000)
hyp_shared_info:
.org hyp_shared_info + 0x1000
/* Labels just for debuggers */
#define hypcall(name, n) \
.org hypcalls + n*32 ; \
.globl __hyp_##name ; \
__hyp_##name:
hypcalls:
hypcall(set_trap_table, 0)
hypcall(mmu_update, 1)
hypcall(set_gdt, 2)
hypcall(stack_switch, 3)
hypcall(set_callbacks, 4)
hypcall(fpu_taskswitch, 5)
hypcall(sched_op_compat, 6)
hypcall(platform_op, 7)
hypcall(set_debugreg, 8)
hypcall(get_debugreg, 9)
hypcall(update_descriptor, 10)
hypcall(memory_op, 12)
hypcall(multicall, 13)
hypcall(update_va_mapping, 14)
hypcall(set_timer_op, 15)
hypcall(event_channel_op_compat, 16)
hypcall(xen_version, 17)
hypcall(console_io, 18)
hypcall(physdev_op_compat, 19)
hypcall(grant_table_op, 20)
hypcall(vm_assist, 21)
hypcall(update_va_mapping_otherdomain, 22)
hypcall(iret, 23)
hypcall(vcpu_op, 24)
hypcall(set_segment_base, 25)
hypcall(mmuext_op, 26)
hypcall(acm_op, 27)
hypcall(nmi_op, 28)
hypcall(sched_op, 29)
hypcall(callback_op, 30)
hypcall(xenoprof_op, 31)
hypcall(event_channel_op, 32)
hypcall(physdev_op, 33)
hypcall(hvm_op, 34)
hypcall(sysctl, 35)
hypcall(domctl, 36)
hypcall(kexec_op, 37)
hypcall(arch_0, 48)
hypcall(arch_1, 49)
hypcall(arch_2, 50)
hypcall(arch_3, 51)
hypcall(arch_4, 52)
hypcall(arch_5, 53)
hypcall(arch_6, 54)
hypcall(arch_7, 55)
.org hypcalls + 0x1000
gdt:
.org gdt + 0x1000
ldt:
.org ldt + 0x1000
stack:
.long _intstack+INTSTACK_SIZE,0xe021
.comm _intstack,INTSTACK_SIZE
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