1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
##
## This file is part of the coreboot project.
##
## Copyright (C) 2007-2010 coresystems GmbH
## (Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH)
##
## 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; version 2 of the License.
##
## 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 this program; if not, write to the Free Software
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
config VGA_BRIDGE_SETUP
bool "Setup bridges on path to VGA adapter"
default y
help
Allow bridges to set up legacy decoding ranges for VGA. Don't disable
this unless you're sure you don't want the briges setup for VGA.
# TODO: Explain differences (if any) for onboard cards.
config VGA_ROM_RUN
bool "Run VGA option ROMs"
default y
help
Execute VGA option ROMs, if found. This is required to enable
PCI/AGP/PCI-E video cards.
config PCI_ROM_RUN
bool "Run non-VGA option ROMs"
default y
help
Execute non-VGA PCI option ROMs, if found.
Examples include IDE/SATA controller option ROMs and option ROMs
for network cards (NICs).
choice
prompt "Option ROM execution type"
default PCI_OPTION_ROM_RUN_YABEL if !ARCH_X86
default PCI_OPTION_ROM_RUN_REALMODE if ARCH_X86
depends on PCI_ROM_RUN || VGA_ROM_RUN
config PCI_OPTION_ROM_RUN_REALMODE
prompt "Native mode"
bool
depends on ARCH_X86
help
If you select this option, PCI option ROMs will be executed
natively on the CPU in real mode. No CPU emulation is involved,
so this is the fastest, but also the least secure option.
(only works on x86/x64 systems)
config PCI_OPTION_ROM_RUN_YABEL
prompt "Secure mode"
bool
help
If you select this option, the x86emu CPU emulator will be used to
execute PCI option ROMs.
This option prevents option ROMs from doing dirty tricks with the
system (such as installing SMM modules or hypervisors), but it is
also significantly slower than the native option ROM initialization
method.
This is the default choice for non-x86 systems.
endchoice
# TODO: Describe better, and/or make a "choice" selection for this.
config YABEL_DEBUG_FLAGS
prompt "Hex value for YABEL debug flags"
hex
default 0x0
depends on PCI_OPTION_ROM_RUN_YABEL
help
CONFIG_YABEL_DEBUG_FLAGS is a binary switch that allows you
to select the following items to debug. 1=on 0=off. After you
decide what you want to debug create the binary value, convert to
hex and set the option.
Example for "debug all":
CONFIG_YABEL_DEBUG_FLAGS = 0x31FF
|-DEBUG_JMP - Print info about JMP and RETF opcodes from x86emu
||-DEBUG_TRACE_X86EMU - Print _all_ opcodes that are executed by
|| x86emu (WARNING: this will produce a LOT
|| of output)
|||-Currently unused
||||-Currently unused
|||||-Currently unused
||||||-DEBUG_PNP - Print Plug And Play accesses made by option ROM
|||||||-DEBUG_DISK - Print Disk I/O related messages, currently unused
||||||||-DEBUG_PMM - Print messages related to POST Memory
|||||||| Manager (PMM)
|||||||||-DEBUG_VBE - Print messages related to VESA BIOS Extension
||||||||| (VBE) functions
||||||||||-DEBUG_PRINT_INT10 - Let INT10 (i.e. character output)
|||||||||| calls print messages to debug output
|||||||||||-DEBUG_INTR - Print messages related to interrupt handling
||||||||||||-DEBUG_CHECK_VMEM_ACCESS - Print messages related to
|||||||||||| accesses to certain areas of
|||||||||||| the virtual memory (e.g. BDA
|||||||||||| (BIOS Data Area) or interrupt
|||||||||||| vectors)
|||||||||||||-DEBUG_MEM - Print memory accesses made by option ROM
||||||||||||| (NOTE: this also includes accesses to
||||||||||||| fetch instructions)
||||||||||||||-DEBUG_IO - Print I/O accesses made by option ROM
11000111111111 - Maximum binary value, i.e. "debug all"
(WARNING: This could run for hours)
DEBUG_IO 0x0001
DEBUG_MEM 0x0002
DEBUG_CHECK_VMEM_ACCESS 0x0004
DEBUG_INTR 0x0008
DEBUG_PRINT_INT10 0x0010
DEBUG_VBE 0x0020
DEBUG_PMM 0x0040
DEBUG_DISK 0x0080
DEBUG_PNP 0x0100
DEBUG_TRACE_X86EMU 0x1000
DEBUG_JMP 0x2000
See debug.h for values. 0 is no debug output, 0x31ff is _verbose_.
config YABEL_PCI_ACCESS_OTHER_DEVICES
prompt "Allow option ROMs to access other devices"
bool
depends on PCI_OPTION_ROM_RUN_YABEL
help
Per default, YABEL only allows option ROMs to access the PCI device
that they are associated with. However, this causes trouble for some
onboard graphics chips whose option ROM needs to reconfigure the
north bridge.
config YABEL_VIRTMEM_LOCATION
prompt "Location of YABEL's virtual memory"
hex
depends on PCI_OPTION_ROM_RUN_YABEL && EXPERT
default 0x1000000
help
YABEL requires 1MB memory for its CPU emulation. This memory is
normally located at 16MB.
config YABEL_DIRECTHW
prompt "Direct hardware access"
bool
depends on PCI_OPTION_ROM_RUN_YABEL
help
YABEL consists of two parts: It uses x86emu for the CPU emulation and
additionally provides a PC system emulation that filters bad device
and memory access (such as PCI config space access to other devices
than the initialized one).
When choosing this option, x86emu will pass through all hardware
accesses to memory and I/O devices to the underlying memory and I/O
addresses. While this option prevents option ROMs from doing dirty
tricks with the CPU (such as installing SMM modules or hypervisors),
they can still access all devices in the system.
Enable this option for a good compromise between security and speed.
config BOOTSPLASH
prompt "Show graphical bootsplash"
bool
depends on PCI_OPTION_ROM_RUN_YABEL
help
This option shows a graphical bootsplash screen. The grapics are
loaded from the CBFS file bootsplash.jpg.
# TODO: Turn this into a "choice".
config FRAMEBUFFER_VESA_MODE
prompt "VESA framebuffer video mode"
hex
default 0x117
depends on BOOTSPLASH
help
This option sets the resolution used for the coreboot framebuffer and
bootsplash screen. Set to 0x117 for 1024x768x16. A diligent soul will
some day make this a "choice".
config COREBOOT_KEEP_FRAMEBUFFER
prompt "Keep VESA framebuffer"
bool
depends on BOOTSPLASH
help
This option keeps the framebuffer mode set after coreboot finishes
execution. If this option is enabled, coreboot will pass a
framebuffer entry in its coreboot table and the payload will need a
framebuffer driver. If this option is disabled, coreboot will switch
back to text mode before handing control to a payload.
config CONSOLE_VGA_MULTI
bool
default n
config PCI_64BIT_PREF_MEM
bool
default n
config HYPERTRANSPORT_PLUGIN_SUPPORT
bool
default n
config PCIX_PLUGIN_SUPPORT
bool
default y
config PCIEXP_PLUGIN_SUPPORT
bool
default y
config AGP_PLUGIN_SUPPORT
bool
default y
config CARDBUS_PLUGIN_SUPPORT
bool
default y
|
