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xen-devel
[Xen-devel] Re: [PATCH]xen/acpi: make poweroff really work for pv-ops do
On 11/23/09 17:33, Wei, Gang wrote:
> xen/acpi: Make poweroff really work for pv-ops dom0
>
> sched_op(SHUTDOWN_poweroff) hypercall will only halt all physical cpus without
> really poweroff the system. Use pm_power_off fn to achieve it.
>
It seems unfortunate that Xen can't actually implement SHUTDOWN_poweroff
in a manner that the name suggests ;) But it can't because it may need
to interpret _SST to do it...
Thanks,
J
> Signed-off-by: Wei Gang <gang.wei@xxxxxxxxx>
>
> diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
> index ecb9b0d..d9fd3f4 100644
> --- a/arch/x86/xen/enlighten.c
> +++ b/arch/x86/xen/enlighten.c
> @@ -1058,6 +1058,14 @@ static void xen_machine_halt(void)
> xen_reboot(SHUTDOWN_poweroff);
> }
>
> +static void xen_machine_power_off(void)
> +{
> + if (pm_power_off)
> + pm_power_off();
> + else
> + xen_reboot(SHUTDOWN_poweroff);
> +}
> +
> static void xen_crash_shutdown(struct pt_regs *regs)
> {
> xen_reboot(SHUTDOWN_crash);
> @@ -1066,7 +1074,7 @@ static void xen_crash_shutdown(struct pt_regs *regs)
> static const struct machine_ops __initdata xen_machine_ops = {
> .restart = xen_restart,
> .halt = xen_machine_halt,
> - .power_off = xen_machine_halt,
> + .power_off = xen_machine_power_off,
> .shutdown = xen_machine_halt,
> .crash_shutdown = xen_crash_shutdown,
> .emergency_restart = xen_emergency_restart,
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