search for: config_processor_external_control

Hi, Jeremy Since now the pv_ops domain0 is approaching, we are considering to port the dom0 power management related code, or more specifically, the Cx/Px ACPI info parsing code, to pv_ops domain0 tree, so that people can utilize Xen power management capability (Cx/PX) under pv_ops domain0. This RFC is a draft version for comments. === Overview === Requirement: Xen hypervisor need Cx/Px ACPI

...00 ms] C1 : transition [00000000000000025505] residency [00000000000000000000 ms] (repeats for all cores) However, CPU_FREQ depends on PROCESSOR_EXTERNAL_CONTROL being set to ''n''. There doesn''t seem to be a way to enable/disable CONFIG_PROCESSOR_EXTERNAL_CONTROL from menuconfig. I therefore manually twiddled that bits in .config and enabled CPU_FREQ and CPU_FREQ_TABLE (plus the performance governor). If I don''t specify the cpufreq option on the dom0 kernel command line, xenpm doesn''t give me C-state information anymore (output below) and...

...OCESSOR=m CONFIG_ACPI_HOTPLUG_CPU=y CONFIG_ACPI_THERMAL=m CONFIG_ACPI_ASUS=m CONFIG_ACPI_IBM=m CONFIG_ACPI_TOSHIBA=m CONFIG_ACPI_BLACKLIST_YEAR=0 # CONFIG_ACPI_DEBUG is not set CONFIG_ACPI_EC=y CONFIG_ACPI_POWER=y CONFIG_ACPI_SYSTEM=y CONFIG_ACPI_CONTAINER=m CONFIG_ACPI_SBS=m CONFIG_ACPI_PV_SLEEP=y CONFIG_PROCESSOR_EXTERNAL_CONTROL=y # # CPU Frequency scaling # # # Bus options (PCI etc.) # CONFIG_PCI=y CONFIG_PCI_DIRECT=y CONFIG_PCI_MMCONFIG=y CONFIG_XEN_PCIDEV_FRONTEND=y # CONFIG_XEN_PCIDEV_FE_DEBUG is not set # CONFIG_PCIEPORTBUS is not set CONFIG_PCI_MSI=y CONFIG_PCI_REASSIGN=y # CONFIG_PCI_DEBUG is not set # # PCCARD (...

...OCESSOR=m CONFIG_ACPI_HOTPLUG_CPU=y CONFIG_ACPI_THERMAL=m CONFIG_ACPI_ASUS=m CONFIG_ACPI_IBM=m CONFIG_ACPI_TOSHIBA=m CONFIG_ACPI_BLACKLIST_YEAR=0 # CONFIG_ACPI_DEBUG is not set CONFIG_ACPI_EC=y CONFIG_ACPI_POWER=y CONFIG_ACPI_SYSTEM=y CONFIG_ACPI_CONTAINER=m CONFIG_ACPI_SBS=m CONFIG_ACPI_PV_SLEEP=y CONFIG_PROCESSOR_EXTERNAL_CONTROL=y # # CPU Frequency scaling # # # Bus options (PCI etc.) # CONFIG_PCI=y CONFIG_PCI_DIRECT=y CONFIG_PCI_MMCONFIG=y CONFIG_XEN_PCIDEV_FRONTEND=y # CONFIG_XEN_PCIDEV_FE_DEBUG is not set # CONFIG_PCIEPORTBUS is not set CONFIG_PCI_MSI=y CONFIG_PCI_REASSIGN=y # CONFIG_PCI_DEBUG is not set # # PCCARD (...

...ONFIG_ACPI_HOTPLUG_CPU=y # CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set CONFIG_ACPI_THERMAL=y # CONFIG_ACPI_CUSTOM_DSDT is not set CONFIG_ACPI_BLACKLIST_YEAR=0 # CONFIG_ACPI_DEBUG is not set # CONFIG_ACPI_PCI_SLOT is not set CONFIG_ACPI_CONTAINER=y # CONFIG_ACPI_SBS is not set CONFIG_ACPI_PV_SLEEP=y CONFIG_PROCESSOR_EXTERNAL_CONTROL=y # CONFIG_SFI is not set # # CPU Frequency scaling # # # Memory power savings # # CONFIG_I7300_IDLE is not set # # Bus options (PCI etc.) # CONFIG_PCI=y CONFIG_PCI_DIRECT=y CONFIG_PCI_MMCONFIG=y CONFIG_PCI_DOMAINS=y CONFIG_XEN_PCIDEV_FRONTEND=y # CONFIG_XEN_PCIDEV_FE_DEBUG is not set CONFIG_PCI...