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Diffstat (limited to 'arch/um/Kconfig.um')
| -rw-r--r-- | arch/um/Kconfig.um | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um index 5dbfe3d9107c..6e67847f5272 100644 --- a/arch/um/Kconfig.um +++ b/arch/um/Kconfig.um @@ -95,48 +95,6 @@ config MAGIC_SYSRQ The keys are documented in <file:Documentation/sysrq.txt>. Don't say Y unless you really know what this hack does. -config SMP - bool "Symmetric multi-processing support" - default n - depends on BROKEN - help - This option enables UML SMP support. - It is NOT related to having a real SMP box. Not directly, at least. - - UML implements virtual SMP by allowing as many processes to run - simultaneously on the host as there are virtual processors configured. - - Obviously, if the host is a uniprocessor, those processes will - timeshare, but, inside UML, will appear to be running simultaneously. - If the host is a multiprocessor, then UML processes may run - simultaneously, depending on the host scheduler. - - This, however, is supported only in TT mode. So, if you use the SKAS - patch on your host, switching to TT mode and enabling SMP usually - gives you worse performances. - Also, since the support for SMP has been under-developed, there could - be some bugs being exposed by enabling SMP. - - If you don't know what to do, say N. - -config NR_CPUS - int "Maximum number of CPUs (2-32)" - range 2 32 - depends on SMP - default "32" - -config HIGHMEM - bool "Highmem support" - depends on !64BIT && BROKEN - default n - help - This was used to allow UML to run with big amounts of memory. - Currently it is unstable, so if unsure say N. - - To use big amounts of memory, it is recommended enable static - linking (i.e. CONFIG_STATIC_LINK) - this should allow the - guest to use up to 2.75G of memory. - config KERNEL_STACK_ORDER int "Kernel stack size order" default 1 if 64BIT |