1 files changed, 159 insertions, 0 deletions
diff --git a/grub-core/efiemu/runtime/efiemu.S b/grub-core/efiemu/runtime/efiemu.S
new file mode 100644
index 0000000..b502314
--- /dev/null
+++ b/grub-core/efiemu/runtime/efiemu.S
@@ -0,0 +1,159 @@
+/*
+ *  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
+