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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2006,2007,2009 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>
/*
* x86_64 uses registry to pass parameters. Unfortunately, gcc and efi use
* different call conversion, so we need to do some conversion.
*
* gcc:
* %rdi, %rsi, %rdx, %rcx, %r8, %r9, 8(%rsp), 16(%rsp), ...
*
* efi:
* %rcx, %rdx, %r8, %r9, 32(%rsp), 40(%rsp), 48(%rsp), ...
*
*/
.file "efiemu.S"
.text
FUNCTION (efiemu_get_time)
push %rdi
push %rsi
mov %rcx, %rdi
mov %rdx, %rsi
call efiemu_get_time_real
pop %rsi
pop %rdi
ret
FUNCTION (efiemu_set_time)
push %rdi
push %rsi
mov %rcx, %rdi
call efiemu_set_time_real
pop %rsi
pop %rdi
ret
FUNCTION (efiemu_get_wakeup_time)
push %rdi
push %rsi
mov %rcx, %rdi
mov %rdx, %rsi
mov %r8, %rdx
call efiemu_get_wakeup_time_real
pop %rsi
pop %rdi
ret
FUNCTION (efiemu_set_wakeup_time)
push %rdi
push %rsi
mov %rcx, %rdi
mov %rdx, %rsi
call efiemu_set_wakeup_time_real
pop %rsi
pop %rdi
ret
FUNCTION (efiemu_get_variable)
push %rdi
push %rsi
mov %rcx, %rdi
mov %rdx, %rsi
mov %r8, %rdx
mov %r9, %rcx
mov 56(%rsp), %r8
call efiemu_get_variable_real
pop %rsi
pop %rdi
ret
FUNCTION (efiemu_get_next_variable_name)
push %rdi
push %rsi
mov %rcx, %rdi
mov %rdx, %rsi
mov %r8, %rdx
call efiemu_get_next_variable_name_real
pop %rsi
pop %rdi
ret
FUNCTION (efiemu_set_variable)
push %rdi
push %rsi
mov %rcx, %rdi
mov %rdx, %rsi
mov %r8, %rdx
mov %r9, %rcx
mov 56(%rsp), %r8
call efiemu_set_variable_real
pop %rsi
pop %rdi
ret
FUNCTION (efiemu_get_next_high_monotonic_count)
push %rdi
push %rsi
mov %rcx, %rdi
call efiemu_get_next_high_monotonic_count_real
pop %rsi
pop %rdi
ret
FUNCTION (efiemu_reset_system)
push %rdi
push %rsi
mov %rcx, %rdi
mov %rdx, %rsi
mov %r8, %rdx
mov %r9, %rcx
call efiemu_reset_system_real
pop %rsi
pop %rdi
ret
/* The following functions are always called in physical mode */
.section ".text-physical", "ax"
FUNCTION (efiemu_set_virtual_address_map)
push %rdi
push %rsi
mov %rcx, %rdi
mov %rdx, %rsi
mov %r8, %rdx
mov %r9, %rcx
call efiemu_set_virtual_address_map_real
pop %rsi
pop %rdi
ret
FUNCTION (efiemu_convert_pointer)
push %rdi
push %rsi
mov %rcx, %rdi
mov %rdx, %rsi
call efiemu_convert_pointer_real
pop %rsi
pop %rdi
ret
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