44 lines
1.2 KiB
ArmAsm
44 lines
1.2 KiB
ArmAsm
|
/* hypercall.S - wrappers for Xen hypercalls */
|
||
|
|
/*
|
||
|
|
* GRUB -- GRand Unified Bootloader
|
||
|
|
* Copyright (C) 2013 Free Software Foundation, Inc.
|
||
|
|
*
|
||
|
|
* GRUB 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 3 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <grub/symbol.h>
|
||
|
|
#include <grub/xen.h>
|
||
|
|
|
||
|
|
FUNCTION(grub_xen_hypercall)
|
||
|
|
pushl %ebp
|
||
|
|
movl %esp, %ebp
|
||
|
|
pushl %esi
|
||
|
|
pushl %edi
|
||
|
|
pushl %ebx
|
||
|
|
|
||
|
|
/* call number already in %eax. */
|
||
|
|
/* %edx -> %ebx*/
|
||
|
|
/* %ecx -> %ecx*/
|
||
|
|
movl %edx, %ebx
|
||
|
|
movl 8(%ebp), %edx
|
||
|
|
movl 12(%ebp), %esi
|
||
|
|
movl 16(%ebp), %edi
|
||
|
|
movl 20(%ebp), %ebp
|
||
|
|
int $0x82
|
||
|
|
popl %ebx
|
||
|
|
popl %edi
|
||
|
|
popl %esi
|
||
|
|
popl %ebp
|
||
|
|
retl $16
|