Jan Beulich
2011-Aug-25 12:53 UTC
[Xen-devel] [PATCH] linux-2.6.18/ACPI: allow passing down C1 information if no other C-states exist
Otherwise Xen may end up not using MWAIT despite its availability. Signed-off-by: Jan Beulich <jbeulich@novell.com> --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -780,7 +780,7 @@ static int acpi_processor_get_power_info current_count)); /* Validate number of power states discovered */ - if (current_count < 2) + if (current_count < 1 + !processor_pm_external()) status = -EFAULT; end: _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel