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-rw-r--r--arch/um/Kconfig.i38619
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/um/Kconfig.i386 b/arch/um/Kconfig.i386
index 85e6a55b3b5..f6eb72d117b 100644
--- a/arch/um/Kconfig.i386
+++ b/arch/um/Kconfig.i386
@@ -16,6 +16,19 @@ 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
@@ -35,11 +48,13 @@ config 3_LEVEL_PGTABLES
config STUB_CODE
hex
- default 0xbfffe000
+ default 0xbfffe000 if !HOST_2G_2G
+ default 0x7fffe000 if HOST_2G_2G
config STUB_DATA
hex
- default 0xbffff000
+ default 0xbffff000 if !HOST_2G_2G
+ default 0x7ffff000 if HOST_2G_2G
config STUB_START
hex