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xen-devel
AW: RE: RE: [Xen-devel] No C-States any longer...
I was faster, just build a new acpi_processor.ko that will report with a lot of
printks in drivers/acpi/processor_xen drivers/acpi/processor_idle as the stuff
from drivers/xen/ simply isn't called.
Not able to test it right now, because I don't want to do a remote reboot and
find
my family anoyed when Internet and TV is not working ;o).
I will check this afternoon when I am back from work.
Carsten.
----- Originalnachricht -----
Von: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
Gesendet: Fre, 10.6.2011 10:48
An: Carsten Schiers <carsten@xxxxxxxxxx> ; xen-devel
<xen-devel@xxxxxxxxxxxxxxxxxxx>
Betreff: RE: RE: RE: [Xen-devel] No C-States any longer...
> From: Carsten Schiers [mailto:carsten@xxxxxxxxxx]
> Sent: Friday, June 10, 2011 3:09 AM
>
> Through some adding of printk I was able at least to verify that for my
> 3 core CPU AMD Athlon X3 400e
>
> - xen_px_notifier is called six times
> - Hypervisor is reporting XEN_PM_PX is called six times
> - Hypervisor is never reporting XEN_PM_CX to have been called
> - this is because xen_cx_notifier is never called.
> -> set_cx_pminfo is never called.
>
> What I will try to find out next is to check where xen_cx_notifier
> *should* be called. OS debugging is
> not realy my expertise, let's see whether you first can give me a hint
> or whether I am quicker to find
> it on my own.
>
the entry point in dom0 looks like:
xen_acpi_processor_start
xen_acpi_processor_power_init
processor_cntl_xen_notify
xen_ops.pm_ops
xen_cx_notifier
HYPERVISOR_dom0_op
Thanks
Kevin
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