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authorAvi Kivity <avi@qumranet.com>2007-07-19 14:30:14 +0300
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 14:37:05 -0700
commit2d9ce177e68645945e3366cfe2d66ee3c28cd4f2 (patch)
treea98a3a8b0f1e92f0b8f9ecb44b67bb46c3b4451a /arch
parent3e1f900bff40460d7bbab0ccd1a9efc3c70aee49 (diff)
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i386: Allow KVM on i386 nonpae
Currently, CONFIG_X86_CMPXCHG64 both enables boot-time checking of the cmpxchg64b feature and enables compilation of the set_64bit() family. Since the option is dependent on PAE, and since KVM depends on set_64bit(), this effectively disables KVM on i386 nopae. Simplify by removing the config option altogether: the boot check is made dependent on CONFIG_X86_PAE directly, and the set_64bit() family is exposed without constraints. It is up to users to check for the feature flag (KVM does not as virtualiation extensions imply its existence). Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/i386/Kconfig.cpu5
-rw-r--r--arch/i386/defconfig1
-rw-r--r--arch/um/defconfig1
3 files changed, 0 insertions, 7 deletions
diff --git a/arch/i386/Kconfig.cpu b/arch/i386/Kconfig.cpu
index 9cbe76c3aa3..11a24d54f27 100644
--- a/arch/i386/Kconfig.cpu
+++ b/arch/i386/Kconfig.cpu
@@ -297,11 +297,6 @@ config X86_POPAD_OK
depends on !M386
default y
-config X86_CMPXCHG64
- bool
- depends on X86_PAE
- default y
-
config X86_ALIGNMENT_16
bool
depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
diff --git a/arch/i386/defconfig b/arch/i386/defconfig
index 1a3a2217b7c..0ac62cdcd3b 100644
--- a/arch/i386/defconfig
+++ b/arch/i386/defconfig
@@ -166,7 +166,6 @@ CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
-CONFIG_X86_CMPXCHG64=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
diff --git a/arch/um/defconfig b/arch/um/defconfig
index a25cd25d55d..1e0f677c2f4 100644
--- a/arch/um/defconfig
+++ b/arch/um/defconfig
@@ -52,7 +52,6 @@ CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
-CONFIG_X86_CMPXCHG64=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y