diff options
| author | Len Brown <len.brown@intel.com> | 2011-04-01 18:28:35 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-08-03 19:06:36 -0400 |
| commit | d91ee5863b71e8c90eaf6035bff3078a85e2e7b5 (patch) | |
| tree | 7c4972d8d6f614f656720ec686a6288de68f4af3 /include/linux | |
| parent | 62027aea23fcd14478abdddd3b74a4e0f5fb2984 (diff) | |
cpuidle: replace xen access to x86 pm_idle and default_idle
When a Xen Dom0 kernel boots on a hypervisor, it gets access
to the raw-hardware ACPI tables. While it parses the idle tables
for the hypervisor's beneift, it uses HLT for its own idle.
Rather than have xen scribble on pm_idle and access default_idle,
have it simply disable_cpuidle() so acpi_idle will not load and
architecture default HLT will be used.
cc: xen-devel@lists.xensource.com
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cpuidle.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 36719ead50e8..b89f67da919e 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -122,6 +122,7 @@ struct cpuidle_driver { }; #ifdef CONFIG_CPU_IDLE +extern void disable_cpuidle(void); extern int cpuidle_register_driver(struct cpuidle_driver *drv); struct cpuidle_driver *cpuidle_get_driver(void); @@ -135,6 +136,7 @@ extern int cpuidle_enable_device(struct cpuidle_device *dev); extern void cpuidle_disable_device(struct cpuidle_device *dev); #else +static inline void disable_cpuidle(void) { } static inline int cpuidle_register_driver(struct cpuidle_driver *drv) {return -ENODEV; } |