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- menu "Host processor type and features"
- source "arch/i386/Kconfig.cpu"
- endmenu
- config UML_X86
- bool
- default y
- config 64BIT
- bool
- default n
- config SEMAPHORE_SLEEPERS
- bool
- default y
- config HOST_2G_2G
- bool "2G/2G host address space split"
- default n
- help
- This is needed when the host on which you run has a 2G/2G memory
- split, instead of the customary 3G/1G.
- Note that to enable such a host
- configuration, which makes sense only in some cases, you need special
- host patches.
- So, if you do not know what to do here, say 'N'.
- config TOP_ADDR
- hex
- default 0xc0000000 if !HOST_2G_2G
- default 0x80000000 if HOST_2G_2G
- config 3_LEVEL_PGTABLES
- bool "Three-level pagetables (EXPERIMENTAL)"
- default n
- depends on EXPERIMENTAL
- help
- Three-level pagetables will let UML have more than 4G of physical
- memory. All the memory that can't be mapped directly will be treated
- as high memory.
- However, this it experimental on 32-bit architectures, so if unsure say
- N (on x86-64 it's automatically enabled, instead, as it's safe there).
- config STUB_CODE
- hex
- default 0xbfffe000 if !HOST_2G_2G
- default 0x7fffe000 if HOST_2G_2G
- config STUB_DATA
- hex
- default 0xbffff000 if !HOST_2G_2G
- default 0x7ffff000 if HOST_2G_2G
- config STUB_START
- hex
- default STUB_CODE
- config ARCH_HAS_SC_SIGNALS
- bool
- default y
- config ARCH_REUSE_HOST_VSYSCALL_AREA
- bool
- default y
- config GENERIC_HWEIGHT
- bool
- default y
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