From 4198426af37e7122f2fda2538fa9dcaa19c5e397 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 23 Aug 2008 17:00:34 -0400 Subject: x86, um: merge Kconfig.i386 and Kconfig.x86_64 Signed-off-by: Al Viro Signed-off-by: H. Peter Anvin --- arch/um/Kconfig.x86 | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 arch/um/Kconfig.x86 (limited to 'arch/um/Kconfig.x86') diff --git a/arch/um/Kconfig.x86 b/arch/um/Kconfig.x86 new file mode 100644 index 000000000000..76200c9f454a --- /dev/null +++ b/arch/um/Kconfig.x86 @@ -0,0 +1,46 @@ +menu "Host processor type and features" + +source "arch/x86/Kconfig.cpu" + +endmenu + +config UML_X86 + def_bool y + +config 64BIT + bool + default SUBARCH = "x86_64" + +config X86_32 + def_bool !64BIT + select HAVE_AOUT + +config RWSEM_XCHGADD_ALGORITHM + def_bool X86_XADD + +config RWSEM_GENERIC_SPINLOCK + def_bool !X86_XADD + +config 3_LEVEL_PGTABLES + bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT + default 64BIT + 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 ARCH_HAS_SC_SIGNALS + def_bool !64BIT + +config ARCH_REUSE_HOST_VSYSCALL_AREA + def_bool !64BIT + +config SMP_BROKEN + def_bool 64BIT + +config GENERIC_HWEIGHT + def_bool y -- cgit v1.2.3-59-g8ed1b