tree a98a3a8b0f1e92f0b8f9ecb44b67bb46c3b4451a
parent 3e1f900bff40460d7bbab0ccd1a9efc3c70aee49
author Avi Kivity <avi@qumranet.com> 1184844614 +0300
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1184881025 -0700

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>