43 lines
1.2 KiB
ArmAsm
43 lines
1.2 KiB
ArmAsm
/* hypercall.S - wrappers for Xen hypercalls */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2013 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/symbol.h>
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#include <grub/xen.h>
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FUNCTION(grub_xen_hypercall)
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pushl %ebp
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movl %esp, %ebp
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pushl %esi
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pushl %edi
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pushl %ebx
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/* call number already in %eax. */
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/* %edx -> %ebx*/
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/* %ecx -> %ecx*/
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movl %edx, %ebx
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movl 8(%ebp), %edx
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movl 12(%ebp), %esi
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movl 16(%ebp), %edi
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movl 20(%ebp), %ebp
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int $0x82
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popl %ebx
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popl %edi
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popl %esi
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popl %ebp
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retl $16
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