x86, espfix: Make it possible to disable 16-bit support

[pandora-kernel.git] / arch / x86 / Kconfig

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9a952a5..956c770 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -909,14 +909,27 @@ config VM86
        default y
        depends on X86_32
        ---help---
-         This option is required by programs like DOSEMU to run 16-bit legacy
-         code on X86 processors. It also may be needed by software like
-         XFree86 to initialize some video cards via BIOS. Disabling this
-         option saves about 6k.
+         This option is required by programs like DOSEMU to run
+         16-bit real mode legacy code on x86 processors. It also may
+         be needed by software like XFree86 to initialize some video
+         cards via BIOS. Disabling this option saves about 6K.
+
+config X86_16BIT
+       bool "Enable support for 16-bit segments" if EXPERT
+       default y
+       ---help---
+         This option is required by programs like Wine to run 16-bit
+         protected mode legacy code on x86 processors.  Disabling
+         this option saves about 300 bytes on i386, or around 6K text
+         plus 16K runtime memory on x86-64,
+
+config X86_ESPFIX32
+       def_bool y
+       depends on X86_16BIT && X86_32
 
 config X86_ESPFIX64
        def_bool y
-       depends on X86_64
+       depends on X86_16BIT && X86_64
 
 config TOSHIBA
        tristate "Toshiba Laptop support"