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-rw-r--r--arch/um/Kconfig.um30
1 files changed, 0 insertions, 30 deletions
diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um
index a7520c90f62d..ff86fbedc2fc 100644
--- a/arch/um/Kconfig.um
+++ b/arch/um/Kconfig.um
@@ -95,36 +95,6 @@ config MAGIC_SYSRQ
95 The keys are documented in <file:Documentation/sysrq.txt>. Don't say Y 95 The keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
96 unless you really know what this hack does. 96 unless you really know what this hack does.
97 97
98config SMP
99 bool "Symmetric multi-processing support"
100 default n
101 depends on BROKEN
102 help
103 This option enables UML SMP support.
104 It is NOT related to having a real SMP box. Not directly, at least.
105
106 UML implements virtual SMP by allowing as many processes to run
107 simultaneously on the host as there are virtual processors configured.
108
109 Obviously, if the host is a uniprocessor, those processes will
110 timeshare, but, inside UML, will appear to be running simultaneously.
111 If the host is a multiprocessor, then UML processes may run
112 simultaneously, depending on the host scheduler.
113
114 This, however, is supported only in TT mode. So, if you use the SKAS
115 patch on your host, switching to TT mode and enabling SMP usually
116 gives you worse performances.
117 Also, since the support for SMP has been under-developed, there could
118 be some bugs being exposed by enabling SMP.
119
120 If you don't know what to do, say N.
121
122config NR_CPUS
123 int "Maximum number of CPUs (2-32)"
124 range 2 32
125 depends on SMP
126 default "32"
127
128config HIGHMEM 98config HIGHMEM
129 bool "Highmem support" 99 bool "Highmem support"
130 depends on !64BIT && BROKEN 100 depends on !64BIT && BROKEN