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| author | Jan Beulich <jbeulich@suse.com> | 2012-09-28 09:36:32 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2012-09-28 09:36:32 +0200 |
| commit | 1443c44067837f77cbd89fcac64cdde3fd337ef4 (patch) | |
| tree | a79bc5cff42f70d50ef0dab85cb325122d7337fa /xen/arch/x86/cpu | |
| parent | 0e82871ca3222f91ffe8b96768ece1b89ce96d12 (diff) | |
| download | xen-1443c44067837f77cbd89fcac64cdde3fd337ef4.tar.gz xen-1443c44067837f77cbd89fcac64cdde3fd337ef4.tar.bz2 xen-1443c44067837f77cbd89fcac64cdde3fd337ef4.zip | |
Revert 25960:6bf8b882df8f (x86: default-disable MWAIT-based idle driver ...)
The problem this was working around should be resolved with c/s
25961:6a5812129094 (x86/HPET: don't disable interrupt delivery right
after setting it up).
Diffstat (limited to 'xen/arch/x86/cpu')
| -rw-r--r-- | xen/arch/x86/cpu/mwait-idle.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/xen/arch/x86/cpu/mwait-idle.c b/xen/arch/x86/cpu/mwait-idle.c index e8b26e4ec8..6a9ca95d33 100644 --- a/xen/arch/x86/cpu/mwait-idle.c +++ b/xen/arch/x86/cpu/mwait-idle.c @@ -71,7 +71,7 @@ # define pr_debug(fmt...) #endif -static __initdata s8 no_mwait_idle = -1; +static __initdata bool_t no_mwait_idle; invbool_param("mwait-idle", no_mwait_idle); static unsigned int mwait_substates; @@ -500,13 +500,6 @@ int __init mwait_idle_init(struct notifier_block *nfb) if (pm_idle_save) return -ENODEV; - /* XXX The no-ARAT case is supposedly being taken care of, but at - * least some systems without ARAT hang for some reason, apparently - * only when using HPET broadcast mode (PIT broadcast mode seems to - * be fine). */ - if (no_mwait_idle < 0 && boot_cpu_has(X86_FEATURE_ARAT)) - no_mwait_idle = 0; - err = mwait_idle_probe(); if (!err) { if (!boot_cpu_has(X86_FEATURE_ARAT)) |