diff options
| author | Len Brown <len.brown@intel.com> | 2011-04-02 00:28:35 +0200 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-08-04 01:06:36 +0200 |
| commit | d91ee5863b71e8c90eaf6035bff3078a85e2e7b5 (patch) | |
| tree | 7c4972d8d6f614f656720ec686a6288de68f4af3 /drivers/cpuidle | |
| parent | cpuidle: create bootparam "cpuidle.off=1" (diff) | |
| download | linux-d91ee5863b71e8c90eaf6035bff3078a85e2e7b5.tar.xz linux-d91ee5863b71e8c90eaf6035bff3078a85e2e7b5.zip | |
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 'drivers/cpuidle')
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index faae2c357bab..041df0b056b2 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -34,6 +34,10 @@ int cpuidle_disabled(void) { return off; } +void disable_cpuidle(void) +{ + off = 1; +} #if defined(CONFIG_ARCH_HAS_CPU_IDLE_WAIT) static void cpuidle_kick_cpus(void) |