From d91ee5863b71e8c90eaf6035bff3078a85e2e7b5 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Fri, 1 Apr 2011 18:28:35 -0400 Subject: 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 Acked-by: H. Peter Anvin Signed-off-by: Len Brown --- drivers/cpuidle/cpuidle.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/cpuidle') 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) -- cgit v1.2.3