Re: [Xen-devel] xen acpi cpufreq driver

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

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

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