The logic depends on being run on CPU0, and in IDLE context. Having this explicitly identified allows for simplification of the whole S3 path.
Signed-off-by: Andrew Cooper <[email protected]> --- CC: Jan Beulich <[email protected]> CC: Wei Liu <[email protected]> CC: Roger Pau Monné <[email protected]> --- xen/arch/x86/acpi/power.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/xen/arch/x86/acpi/power.c b/xen/arch/x86/acpi/power.c index aecc754fdb..d83e8cdd52 100644 --- a/xen/arch/x86/acpi/power.c +++ b/xen/arch/x86/acpi/power.c @@ -174,6 +174,8 @@ static int enter_state(u32 state) return -EBUSY; BUG_ON(system_state != SYS_STATE_active); + BUG_ON(!is_idle_vcpu(current)); + BUG_ON(smp_processor_id() != 0); system_state = SYS_STATE_suspend; printk(XENLOG_INFO "Preparing system for ACPI S%d state.\n", state); -- 2.11.0 _______________________________________________ Xen-devel mailing list [email protected] https://lists.xenproject.org/mailman/listinfo/xen-devel
