2008-08-25 16:51:27 +08:00
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source "arch/um/Kconfig.common"
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menu "UML-specific options"
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2005-11-14 08:07:06 +08:00
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menu "Host processor type and features"
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2011-04-15 06:22:18 +08:00
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config CMPXCHG_LOCAL
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bool
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default n
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2007-10-29 12:34:31 +08:00
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source "arch/x86/Kconfig.cpu"
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2005-11-14 08:07:06 +08:00
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endmenu
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2005-05-01 23:58:54 +08:00
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config UML_X86
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2008-08-24 05:00:34 +08:00
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def_bool y
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2011-03-08 17:24:26 +08:00
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select GENERIC_FIND_FIRST_BIT
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select GENERIC_FIND_NEXT_BIT
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2008-08-24 05:00:34 +08:00
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config 64BIT
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2005-05-01 23:58:54 +08:00
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bool
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2008-08-24 05:00:34 +08:00
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default SUBARCH = "x86_64"
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2005-05-01 23:58:54 +08:00
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2007-12-02 04:16:28 +08:00
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config X86_32
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2008-08-24 05:00:34 +08:00
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def_bool !64BIT
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select HAVE_AOUT
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2007-12-02 04:16:28 +08:00
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2011-03-01 19:14:55 +08:00
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config X86_64
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def_bool 64BIT
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2007-12-02 04:16:28 +08:00
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config RWSEM_XCHGADD_ALGORITHM
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2011-05-24 04:51:33 +08:00
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def_bool X86_XADD && 64BIT
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2007-12-02 04:16:28 +08:00
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2008-08-24 05:00:34 +08:00
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config RWSEM_GENERIC_SPINLOCK
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2011-05-24 04:51:33 +08:00
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def_bool !RWSEM_XCHGADD_ALGORITHM
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2005-04-17 06:20:36 +08:00
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config 3_LEVEL_PGTABLES
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2008-08-24 05:00:34 +08:00
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bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
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default 64BIT
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2006-01-19 09:42:59 +08:00
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depends on EXPERIMENTAL
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2005-04-17 06:20:36 +08:00
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help
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Three-level pagetables will let UML have more than 4G of physical
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memory. All the memory that can't be mapped directly will be treated
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as high memory.
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2006-01-19 09:42:59 +08:00
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However, this it experimental on 32-bit architectures, so if unsure say
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N (on x86-64 it's automatically enabled, instead, as it's safe there).
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2005-04-17 06:20:36 +08:00
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config ARCH_HAS_SC_SIGNALS
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2008-08-24 05:00:34 +08:00
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def_bool !64BIT
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2005-04-17 06:20:36 +08:00
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config ARCH_REUSE_HOST_VSYSCALL_AREA
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2008-08-24 05:00:34 +08:00
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def_bool !64BIT
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config SMP_BROKEN
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def_bool 64BIT
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2006-03-26 17:38:59 +08:00
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config GENERIC_HWEIGHT
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2008-08-24 05:00:34 +08:00
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def_bool y
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2008-08-25 16:51:27 +08:00
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source "arch/um/Kconfig.um"
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endmenu
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source "arch/um/Kconfig.rest"
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