Newer
Older
mainmenu "Linux Kernel Configuration for x86"
# Select 32 or 64 bit
config 64BIT
bool "64-bit kernel" if ARCH = "x86"
default ARCH = "x86_64"
help
Say yes to build a 64-bit kernel - formerly known as x86_64
Say no to build a 32-bit kernel - formerly known as i386
config X86_32
def_bool !64BIT
config X86_64
def_bool 64BIT
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
config X86
bool
default y
config GENERIC_TIME
bool
default y
config GENERIC_CMOS_UPDATE
bool
default y
config CLOCKSOURCE_WATCHDOG
bool
default y
config GENERIC_CLOCKEVENTS
bool
default y
config GENERIC_CLOCKEVENTS_BROADCAST
bool
default y
depends on X86_64 || (X86_32 && X86_LOCAL_APIC)
config LOCKDEP_SUPPORT
bool
default y
config STACKTRACE_SUPPORT
bool
default y
config SEMAPHORE_SLEEPERS
bool
default y
config MMU
bool
default y
config ZONE_DMA
bool
default y
config QUICKLIST
bool
default X86_32
config SBUS
bool
config GENERIC_ISA_DMA
bool
default y
config GENERIC_IOMAP
bool
default y
config GENERIC_BUG
bool
default y
depends on BUG
config GENERIC_HWEIGHT
bool
default y
config ARCH_MAY_HAVE_PC_FDC
bool
default y
config DMI
bool
default y
config RWSEM_GENERIC_SPINLOCK
def_bool !X86_XADD
config RWSEM_XCHGADD_ALGORITHM
def_bool X86_XADD
config ARCH_HAS_ILOG2_U32
def_bool n
config ARCH_HAS_ILOG2_U64
def_bool n
config GENERIC_CALIBRATE_DELAY
def_bool y
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
config GENERIC_TIME_VSYSCALL
bool
default X86_64
config ZONE_DMA32
bool
default X86_64
config ARCH_POPULATES_NODE_MAP
def_bool y
config AUDIT_ARCH
bool
default X86_64
# Use the generic interrupt handling code in kernel/irq/:
config GENERIC_HARDIRQS
bool
default y
config GENERIC_IRQ_PROBE
bool
default y
config GENERIC_PENDING_IRQ
bool
depends on GENERIC_HARDIRQS && SMP
default y
config X86_SMP
bool
depends on X86_32 && SMP && !X86_VOYAGER
default y
config X86_HT
bool
depends on SMP && !(X86_VISWS || X86_VOYAGER || MK8)
default y
config X86_BIOS_REBOOT
bool
depends on X86_32 && !(X86_VISWS || X86_VOYAGER)
default y
config X86_TRAMPOLINE
bool
depends on X86_SMP || (X86_VOYAGER && SMP)
default y
config KTIME_SCALAR
def_bool X86_32
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
menu "Processor type and features"
source "kernel/time/Kconfig"
config SMP
bool "Symmetric multi-processing support"
---help---
This enables support for systems with more than one CPU. If you have
a system with only one CPU, like most personal computers, say N. If
you have a system with more than one CPU, say Y.
If you say N here, the kernel will run on single and multiprocessor
machines, but will use only one CPU of a multiprocessor machine. If
you say Y here, the kernel will run on many, but not all,
singleprocessor machines. On a singleprocessor machine, the kernel
will run faster if you say N here.
Note that if you say Y here and choose architecture "586" or
"Pentium" under "Processor family", the kernel will not work on 486
architectures. Similarly, multiprocessor kernels for the "PPro"
architecture may not work on all Pentium based boards.
People using multiprocessor machines who say Y here should also say
Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
Management" code will be disabled if you say Y here.
See also the <file:Documentation/smp.txt>,
<file:Documentation/i386/IO-APIC.txt>,
<file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
<http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
Loading
Loading full blame...