| Message ID | 1373898101-15633-1-git-send-email-julien.grall@linaro.org |
|---|---|
| State | Superseded, archived |
| Headers | show |
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c index 49839d8..a98999f 100644 --- a/arch/arm/xen/enlighten.c +++ b/arch/arm/xen/enlighten.c @@ -24,6 +24,8 @@ #include <linux/of.h> #include <linux/of_irq.h> #include <linux/of_address.h> +#include <linux/cpuidle.h> +#include <linux/cpufreq.h> #include <linux/mm.h> @@ -292,6 +294,11 @@ static int __init xen_pm_init(void) { pm_power_off = xen_power_off; arm_pm_restart = xen_restart; + /* + * Making sure board specific code will not set up ops for + * cpu idle. + */ + disable_cpuidle(); return 0; }
When linux is running as dom0, Xen doesn't show the physical cpu but a virtual CPU. On some ARM SOC (for instance the exynos 5250), linux registers callbacks for cpuidle. When these callbacks are called, they will modify directly the physical cpu not the virtual one. It can impact the whole board instead of dom0. Signed-off-by: Julien Grall <julien.grall@linaro.org> --- arch/arm/xen/enlighten.c | 7 +++++++ 1 file changed, 7 insertions(+)