Re: [Xen-devel] FAILED/MISSING cstate/cpufreq/cpupower support with Xen 4.13 + kernel 5.4.14; withOUT xen/hypervisor, WORKS. bug or config?

[Jan Beulich <jbeulich@xxxxxxxx>]

On 29.01.2020 17:59, PGNet Dev wrote:
> (XEN) [2020-01-29 16:44:58] Set CPU acpi_id(1) cpuid(0) Px State info:
> (XEN) [2020-01-29 16:44:58]     _PCT: descriptor=130, length=12, 
> space_id=127, bit_width=0, bit_offset=0, reserved=0, address=0
> (XEN) [2020-01-29 16:44:58]     _PCT: descriptor=130, length=12, 
> space_id=127, bit_width=0, bit_offset=0, reserved=0, address=0
> (XEN) [2020-01-29 16:44:58]     _PSS: state_count=16
> (XEN) [2020-01-29 16:44:58]     State0: 3101MHz 80000mW 10us 10us 0x2300 
> 0x2300
> (XEN) [2020-01-29 16:44:58]     State1: 3100MHz 80000mW 10us 10us 0x1f00 
> 0x1f00
> (XEN) [2020-01-29 16:44:58]     State2: 2900MHz 72713mW 10us 10us 0x1d00 
> 0x1d00
> (XEN) [2020-01-29 16:44:58]     State3: 2800MHz 69558mW 10us 10us 0x1c00 
> 0x1c00
> (XEN) [2020-01-29 16:44:58]     State4: 2600MHz 62669mW 10us 10us 0x1a00 
> 0x1a00
> (XEN) [2020-01-29 16:44:58]     State5: 2400MHz 56794mW 10us 10us 0x1800 
> 0x1800
> (XEN) [2020-01-29 16:44:58]     State6: 2300MHz 53935mW 10us 10us 0x1700 
> 0x1700
> (XEN) [2020-01-29 16:44:58]     State7: 2100MHz 47673mW 10us 10us 0x1500 
> 0x1500
> (XEN) [2020-01-29 16:44:58]     State8: 1900MHz 42370mW 10us 10us 0x1300 
> 0x1300
> (XEN) [2020-01-29 16:44:58]     State9: 1800MHz 39795mW 10us 10us 0x1200 
> 0x1200
> (XEN) [2020-01-29 16:44:58]     State10: 1600MHz 34136mW 10us 10us 0x1000 
> 0x1000
> (XEN) [2020-01-29 16:44:58]     State11: 1500MHz 31729mW 10us 10us 0xf00 0xf00
> (XEN) [2020-01-29 16:44:58]     State12: 1300MHz 26432mW 10us 10us 0xd00 0xd00
> (XEN) [2020-01-29 16:44:58]     State13: 1100MHz 21994mW 10us 10us 0xb00 0xb00
> (XEN) [2020-01-29 16:44:58]     State14: 1000MHz 19851mW 10us 10us 0xa00 0xa00
> (XEN) [2020-01-29 16:44:58]     State15: 800MHz 15113mW 10us 10us 0x800 0x800
> (XEN) [2020-01-29 16:44:58]     _PSD: num_entries=5 rev=0 domain=0 
> coord_type=254 num_processors=4
> (XEN) [2020-01-29 16:44:58]     _PPC: 0
> (XEN) [2020-01-29 16:44:58] xen_pminfo: @acpi_cpufreq_cpu_init,HARDWARE addr 
> space
> (XEN) [2020-01-29 16:44:58] max_freq: 3101000    second_max_freq: 3100000
> (XEN) [2020-01-29 16:44:58] CPU0: Turbo Mode detected and enabled
> (XEN) [2020-01-29 16:44:58] CPU 0 initialization completed
> (XEN) [2020-01-29 16:44:58] Set CPU acpi_id(2) cpuid(1) Px State info:
> (XEN) [2020-01-29 16:44:58]     _PCT: descriptor=130, length=12, 
> space_id=127, bit_width=0, bit_offset=0, reserved=0, address=0
> (XEN) [2020-01-29 16:44:58]     _PCT: descriptor=130, length=12, 
> space_id=127, bit_width=0, bit_offset=0, reserved=0, address=0
> (XEN) [2020-01-29 16:44:58]     _PSS: state_count=16
> (XEN) [2020-01-29 16:44:58]     State0: 3101MHz 80000mW 10us 10us 0x2300 
> 0x2300
> (XEN) [2020-01-29 16:44:58]     State1: 3100MHz 80000mW 10us 10us 0x1f00 
> 0x1f00
> (XEN) [2020-01-29 16:44:58]     State2: 2900MHz 72713mW 10us 10us 0x1d00 
> 0x1d00
> (XEN) [2020-01-29 16:44:58]     State3: 2800MHz 69558mW 10us 10us 0x1c00 
> 0x1c00
> (XEN) [2020-01-29 16:44:58]     State4: 2600MHz 62669mW 10us 10us 0x1a00 
> 0x1a00
> (XEN) [2020-01-29 16:44:58]     State5: 2400MHz 56794mW 10us 10us 0x1800 
> 0x1800
> (XEN) [2020-01-29 16:44:58]     State6: 2300MHz 53935mW 10us 10us 0x1700 
> 0x1700
> (XEN) [2020-01-29 16:44:58]     State7: 2100MHz 47673mW 10us 10us 0x1500 
> 0x1500
> (XEN) [2020-01-29 16:44:58]     State8: 1900MHz 42370mW 10us 10us 0x1300 
> 0x1300
> (XEN) [2020-01-29 16:44:58]     State9: 1800MHz 39795mW 10us 10us 0x1200 
> 0x1200
> (XEN) [2020-01-29 16:44:58]     State10: 1600MHz 34136mW 10us 10us 0x1000 
> 0x1000
> (XEN) [2020-01-29 16:44:58]     State11: 1500MHz 31729mW 10us 10us 0xf00 0xf00
> (XEN) [2020-01-29 16:44:58]     State12: 1300MHz 26432mW 10us 10us 0xd00 0xd00
> (XEN) [2020-01-29 16:44:58]     State13: 1100MHz 21994mW 10us 10us 0xb00 0xb00
> (XEN) [2020-01-29 16:44:58]     State14: 1000MHz 19851mW 10us 10us 0xa00 0xa00
> (XEN) [2020-01-29 16:44:58]     State15: 800MHz 15113mW 10us 10us 0x800 0x800
> (XEN) [2020-01-29 16:44:58]     _PSD: num_entries=5 rev=0 domain=0 
> coord_type=254 num_processors=4
> (XEN) [2020-01-29 16:44:58]     _PPC: 0
> (XEN) [2020-01-29 16:44:58] xen_pminfo: @acpi_cpufreq_cpu_init,HARDWARE addr 
> space
> (XEN) [2020-01-29 16:44:58] max_freq: 3101000    second_max_freq: 3100000
> (XEN) [2020-01-29 16:44:58] CPU1: Turbo Mode detected and enabled
> (XEN) [2020-01-29 16:44:58] CPU 1 initialization completed
> (XEN) [2020-01-29 16:44:58] Set CPU acpi_id(3) cpuid(2) Px State info:
> (XEN) [2020-01-29 16:44:58]     _PCT: descriptor=130, length=12, 
> space_id=127, bit_width=0, bit_offset=0, reserved=0, address=0
> (XEN) [2020-01-29 16:44:58]     _PCT: descriptor=130, length=12, 
> space_id=127, bit_width=0, bit_offset=0, reserved=0, address=0
> (XEN) [2020-01-29 16:44:58]     _PSS: state_count=16
> (XEN) [2020-01-29 16:44:58]     State0: 3101MHz 80000mW 10us 10us 0x2300 
> 0x2300
> (XEN) [2020-01-29 16:44:58]     State1: 3100MHz 80000mW 10us 10us 0x1f00 
> 0x1f00
> (XEN) [2020-01-29 16:44:58]     State2: 2900MHz 72713mW 10us 10us 0x1d00 
> 0x1d00
> (XEN) [2020-01-29 16:44:58]     State3: 2800MHz 69558mW 10us 10us 0x1c00 
> 0x1c00
> (XEN) [2020-01-29 16:44:58]     State4: 2600MHz 62669mW 10us 10us 0x1a00 
> 0x1a00
> (XEN) [2020-01-29 16:44:58]     State5: 2400MHz 56794mW 10us 10us 0x1800 
> 0x1800
> (XEN) [2020-01-29 16:44:58]     State6: 2300MHz 53935mW 10us 10us 0x1700 
> 0x1700
> (XEN) [2020-01-29 16:44:58]     State7: 2100MHz 47673mW 10us 10us 0x1500 
> 0x1500
> (XEN) [2020-01-29 16:44:58]     State8: 1900MHz 42370mW 10us 10us 0x1300 
> 0x1300
> (XEN) [2020-01-29 16:44:58]     State9: 1800MHz 39795mW 10us 10us 0x1200 
> 0x1200
> (XEN) [2020-01-29 16:44:58]     State10: 1600MHz 34136mW 10us 10us 0x1000 
> 0x1000
> (XEN) [2020-01-29 16:44:58]     State11: 1500MHz 31729mW 10us 10us 0xf00 0xf00
> (XEN) [2020-01-29 16:44:58]     State12: 1300MHz 26432mW 10us 10us 0xd00 0xd00
> (XEN) [2020-01-29 16:44:58]     State13: 1100MHz 21994mW 10us 10us 0xb00 0xb00
> (XEN) [2020-01-29 16:44:58]     State14: 1000MHz 19851mW 10us 10us 0xa00 0xa00
> (XEN) [2020-01-29 16:44:58]     State15: 800MHz 15113mW 10us 10us 0x800 0x800
> (XEN) [2020-01-29 16:44:58]     _PSD: num_entries=5 rev=0 domain=0 
> coord_type=254 num_processors=4
> (XEN) [2020-01-29 16:44:58]     _PPC: 0
> (XEN) [2020-01-29 16:44:58] xen_pminfo: @acpi_cpufreq_cpu_init,HARDWARE addr 
> space
> (XEN) [2020-01-29 16:44:58] max_freq: 3101000    second_max_freq: 3100000
> (XEN) [2020-01-29 16:44:58] CPU2: Turbo Mode detected and enabled
> (XEN) [2020-01-29 16:44:58] CPU 2 initialization completed
> (XEN) [2020-01-29 16:44:58] Set CPU acpi_id(4) cpuid(3) Px State info:
> (XEN) [2020-01-29 16:44:58]     _PCT: descriptor=130, length=12, 
> space_id=127, bit_width=0, bit_offset=0, reserved=0, address=0
> (XEN) [2020-01-29 16:44:58]     _PCT: descriptor=130, length=12, 
> space_id=127, bit_width=0, bit_offset=0, reserved=0, address=0
> (XEN) [2020-01-29 16:44:58]     _PSS: state_count=16
> (XEN) [2020-01-29 16:44:58]     State0: 3101MHz 80000mW 10us 10us 0x2300 
> 0x2300
> (XEN) [2020-01-29 16:44:58]     State1: 3100MHz 80000mW 10us 10us 0x1f00 
> 0x1f00
> (XEN) [2020-01-29 16:44:58]     State2: 2900MHz 72713mW 10us 10us 0x1d00 
> 0x1d00
> (XEN) [2020-01-29 16:44:58]     State3: 2800MHz 69558mW 10us 10us 0x1c00 
> 0x1c00
> (XEN) [2020-01-29 16:44:59]     State4: 2600MHz 62669mW 10us 10us 0x1a00 
> 0x1a00
> (XEN) [2020-01-29 16:44:59]     State5: 2400MHz 56794mW 10us 10us 0x1800 
> 0x1800
> (XEN) [2020-01-29 16:44:59]     State6: 2300MHz 53935mW 10us 10us 0x1700 
> 0x1700
> (XEN) [2020-01-29 16:44:59]     State7: 2100MHz 47673mW 10us 10us 0x1500 
> 0x1500
> (XEN) [2020-01-29 16:44:59]     State8: 1900MHz 42370mW 10us 10us 0x1300 
> 0x1300
> (XEN) [2020-01-29 16:44:59]     State9: 1800MHz 39795mW 10us 10us 0x1200 
> 0x1200
> (XEN) [2020-01-29 16:44:59]     State10: 1600MHz 34136mW 10us 10us 0x1000 
> 0x1000
> (XEN) [2020-01-29 16:44:59]     State11: 1500MHz 31729mW 10us 10us 0xf00 0xf00
> (XEN) [2020-01-29 16:44:59]     State12: 1300MHz 26432mW 10us 10us 0xd00 0xd00
> (XEN) [2020-01-29 16:44:59]     State13: 1100MHz 21994mW 10us 10us 0xb00 0xb00
> (XEN) [2020-01-29 16:44:59]     State14: 1000MHz 19851mW 10us 10us 0xa00 0xa00
> (XEN) [2020-01-29 16:44:59]     State15: 800MHz 15113mW 10us 10us 0x800 0x800
> (XEN) [2020-01-29 16:44:59]     _PSD: num_entries=5 rev=0 domain=0 
> coord_type=254 num_processors=4
> (XEN) [2020-01-29 16:44:59]     _PPC: 0
> (XEN) [2020-01-29 16:44:59] xen_pminfo: @acpi_cpufreq_cpu_init,HARDWARE addr 
> space
> (XEN) [2020-01-29 16:44:59] max_freq: 3101000    second_max_freq: 3100000
> (XEN) [2020-01-29 16:44:59] CPU3: Turbo Mode detected and enabled
> (XEN) [2020-01-29 16:44:59] CPU 3 initialization completed

All of this suggests P-state handling ought to be working now.
So I wonder what exactly you mean by saying "still seeing NO
cpufreq/scaling info."

Jan

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