75 lines
1.4 KiB
Plaintext
75 lines
1.4 KiB
Plaintext
menu "Host processor type and features"
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source "arch/i386/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 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 HOST_2G_2G
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bool "2G/2G host address space split"
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default n
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help
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This is needed when the host on which you run has a 2G/2G memory
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split, instead of the customary 3G/1G.
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Note that to enable such a host
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configuration, which makes sense only in some cases, you need special
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host patches.
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So, if you do not know what to do here, say 'N'.
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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 (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 STUB_CODE
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hex
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default 0xbfffe000 if !HOST_2G_2G
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default 0x7fffe000 if HOST_2G_2G
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config STUB_DATA
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hex
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default 0xbffff000 if !HOST_2G_2G
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default 0x7ffff000 if HOST_2G_2G
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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 GENERIC_HWEIGHT
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bool
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default y
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