From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tobias Geiger <tobias.geiger@vido.info>
Subject: Re: xen acpi cpufreq driver
Date: Wed, 25 Apr 2012 01:28:38 +0200
Message-ID: <4F973726.9010405@vido.info>
References: <201204241904.03726.tobias.geiger@vido.info>
	<20120424173601.GA27353@phenom.dumpdata.com>
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To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Am 24.04.2012 19:36, schrieb Konrad Rzeszutek Wilk:
> On Tue, Apr 24, 2012 at 07:04:03PM +0200, Tobias Geiger wrote:
>> Hi,
>>
>> i'm not sure if i understood the new acpi xen cpufreq driver - here's the
>> output when loading  xen_acpi_processor module in linux 3.4:
>>
>> dom0 dmesg:
>>
>> [   32.728151] xen-acpi-processor: (CX): Hypervisor error (-22) for ACPI CPU8
>> [   32.728156] xen-acpi-processor: (CX): Hypervisor error (-22) for ACPI CPU9
>> [   32.728160] xen-acpi-processor: (CX): Hypervisor error (-22) for ACPI CPU10
>> [   32.728164] xen-acpi-processor: (CX): Hypervisor error (-22) for ACPI CPU11
>> [   32.728168] xen-acpi-processor: (CX): Hypervisor error (-22) for ACPI CPU12
>> [   32.728172] xen-acpi-processor: (CX): Hypervisor error (-22) for ACPI CPU13
>> [   32.728176] xen-acpi-processor: (CX): Hypervisor error (-22) for ACPI CPU14
>>
>>
>>
>> xl dmesg:
>>
>> (XEN) Monitor-Mwait will be used to enter C1 state
>> (XEN) Monitor-Mwait will be used to enter C3 state
>> (XEN) no cpu_id for acpi_id 8
>> (XEN) no cpu_id for acpi_id 9
>> (XEN) no cpu_id for acpi_id 10
>> (XEN) no cpu_id for acpi_id 11
>> (XEN) no cpu_id for acpi_id 12
>> (XEN) no cpu_id for acpi_id 13
>> (XEN) no cpu_id for acpi_id 14
>>
>>
>> here the according kernel config:
>>
>> pc:~# zcat /proc/config.gz | grep FREQ
>> CONFIG_CPU_FREQ=y
>> CONFIG_CPU_FREQ_TABLE=y
>> CONFIG_CPU_FREQ_STAT=m
>> # CONFIG_CPU_FREQ_STAT_DETAILS is not set
>> # CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
>> # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
>> CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
>> # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
>> CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
>> CONFIG_CPU_FREQ_GOV_POWERSAVE=m
>> CONFIG_CPU_FREQ_GOV_USERSPACE=m
>> CONFIG_CPU_FREQ_GOV_ONDEMAND=y
>> CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
>> CONFIG_X86_PCC_CPUFREQ=m
>> CONFIG_X86_ACPI_CPUFREQ=m
>> # CONFIG_PM_DEVFREQ is not set
>>
>> and of course:
>> CONFIG_XEN_ACPI_PROCESSOR=m
>>
>> xl info:
>> nr_cpus                : 8
>> max_cpu_id             : 15
>> nr_nodes               : 1
>> cores_per_socket       : 4
>> threads_per_core       : 2
> Can you include your xl dmesg and dmesg and as well
> the /sys/firmware/acpi/tables/DSDT and /sys/firmware/acpi/tables/SSDT*
> files please?
>
> Does xenpm work properly?
>
>>
>> Greetings and thanks for clarification!
>> Tobias


xenpm works - at least "xenpm get-cpuidle-states" and "xenpm 
get-cpufreq-states".

here you can find my acpi-tables including "xl dmesg" and "dmesg" output:

http://www.vido.info/stuff/acpi-tables-2.6.34-rc4.tar.bz2

Greetings
Tobias