64ac24e738
Semaphores are no longer performance-critical, so a generic C implementation is better for maintainability, debuggability and extensibility. Thanks to Peter Zijlstra for fixing the lockdep warning. Thanks to Harvey Harrison for pointing out that the unlikely() was unnecessary. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Ingo Molnar <mingo@elte.hu>
47 lines
826 B
Text
47 lines
826 B
Text
menu "Host processor type and features"
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source "arch/x86/Kconfig.cpu"
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endmenu
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config UML_X86
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bool
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default y
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config X86_32
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bool
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default y
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config RWSEM_XCHGADD_ALGORITHM
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def_bool y
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config 64BIT
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bool
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default n
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config 3_LEVEL_PGTABLES
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bool "Three-level pagetables (EXPERIMENTAL)"
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default n
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depends on EXPERIMENTAL
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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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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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config ARCH_HAS_SC_SIGNALS
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bool
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default y
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config ARCH_REUSE_HOST_VSYSCALL_AREA
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bool
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default y
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config GENERIC_HWEIGHT
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bool
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default y
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config ARCH_SUPPORTS_AOUT
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def_bool y
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