3013449243
Using native cmpxchg offers a slight performance improvement in uml/i386. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
49 lines
695 B
Plaintext
49 lines
695 B
Plaintext
config UML_X86
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bool
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default y
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config 64BIT
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bool
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default n
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config SEMAPHORE_SLEEPERS
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bool
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default y
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config TOP_ADDR
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hex
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default 0xc0000000 if !HOST_2G_2G
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default 0x80000000 if HOST_2G_2G
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config 3_LEVEL_PGTABLES
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bool "Three-level pagetables"
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default n
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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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config STUB_CODE
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hex
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default 0xbfffe000
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config STUB_DATA
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hex
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default 0xbffff000
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config STUB_START
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hex
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default STUB_CODE
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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 X86_CMPXCHG
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bool
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default y
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