[deliverable/linux.git] / arch / um / Kconfig.i386

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
Commit	Line	Data
85977376 PBG	1	menu "Host processor type and features"
	2
	3	source "arch/i386/Kconfig.cpu"
	4
	5	endmenu
	6
c45166be PBG	7	config UML_X86
	8	bool
	9	default y
	10
	11	config 64BIT
1da177e4 LT	12	bool
	13	default n
	14
52fdd089 BL	15	config SEMAPHORE_SLEEPERS
	16	bool
	17	default y
	18
893bb96a JR	19	config HOST_2G_2G
	20	bool "2G/2G host address space split"
	21	default n
	22	help
	23	This is needed when the host on which you run has a 2G/2G memory
	24	split, instead of the customary 3G/1G.
	25
	26	Note that to enable such a host
	27	configuration, which makes sense only in some cases, you need special
	28	host patches.
	29
	30	So, if you do not know what to do here, say 'N'.
	31
1da177e4 LT	32	config TOP_ADDR
	33	hex
	34	default 0xc0000000 if !HOST_2G_2G
	35	default 0x80000000 if HOST_2G_2G
	36
	37	config 3_LEVEL_PGTABLES
ce2d2aed	38	bool "Three-level pagetables (EXPERIMENTAL)"
1da177e4	39	default n
ce2d2aed	40	depends on EXPERIMENTAL
1da177e4 LT	41	help
	42	Three-level pagetables will let UML have more than 4G of physical
	43	memory. All the memory that can't be mapped directly will be treated
	44	as high memory.
	45
ce2d2aed PBG	46	However, this it experimental on 32-bit architectures, so if unsure say
	47	N (on x86-64 it's automatically enabled, instead, as it's safe there).
	48
d67b569f JD	49	config STUB_CODE
d67b569f JD	50	hex
893bb96a JR	51	default 0xbfffe000 if !HOST_2G_2G
893bb96a JR	52	default 0x7fffe000 if HOST_2G_2G
d67b569f JD	53
	54	config STUB_DATA
	55	hex
893bb96a JR	56	default 0xbffff000 if !HOST_2G_2G
893bb96a JR	57	default 0x7ffff000 if HOST_2G_2G
d67b569f JD	58
	59	config STUB_START
	60	hex
	61	default STUB_CODE
	62
1da177e4 LT	63	config ARCH_HAS_SC_SIGNALS
	64	bool
	65	default y
	66
	67	config ARCH_REUSE_HOST_VSYSCALL_AREA
	68	bool
	69	default y
f214ef3e AM	70
	71	config GENERIC_HWEIGHT
	72	bool
	73	default y
	74