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 efb4294..28a1bca 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -75,6 +75,7 @@ config X86
        select HAVE_BPF_JIT if (X86_64 && NET)
        select CLKEVT_I8253
        select ARCH_HAVE_NMI_SAFE_CMPXCHG
+       select ARCH_SUPPORTS_ATOMIC_RMW
 
 config INSTRUCTION_DECODER
        def_bool (KPROBES || PERF_EVENTS)
@@ -895,10 +896,27 @@ 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_16BIT && X86_64
 
 config TOSHIBA
        tristate "Toshiba Laptop support"
@@ -1150,7 +1168,7 @@ config DIRECT_GBPAGES
 config NUMA
        bool "Numa Memory Allocation and Scheduler Support"
        depends on SMP
-       depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL)
+       depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && BROKEN)
        default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
        ---help---
          Enable NUMA (Non Uniform Memory Access) support.
@@ -2120,6 +2138,7 @@ source "fs/Kconfig.binfmt"
 config IA32_EMULATION
        bool "IA32 Emulation"
        depends on X86_64
+       select BINFMT_ELF
        select COMPAT_BINFMT_ELF
        ---help---
          Include code to run 32-bit programs under a 64-bit kernel. You should