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[Xen-devel] No C-States any longer...


  • To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Carsten Schiers" <carsten@xxxxxxxxxx>
  • Date: Sat, 4 Jun 2011 18:18:49 +0200
  • Delivery-date: Sat, 04 Jun 2011 09:20:08 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

after my move to Xen 4.1.0 and Debian 2.6.32-5-xen-amd64 pvops Dom0. 
Seems to be a problem with ACPI.
Can it be a BIOS problem (although it worked up to now) or is this not 
implemented? 

Thanks & BR, Carsten.

Some infos:

xm dmesg after xm debug-key c:
--------------------------------
(XEN) 'c' pressed -> printing ACPI Cx structures

xenpm get-cpuidle-states 0
--------------------------
Max C-state: C7

cpu id               : 0
total C-states       : 0
idle time(ms)        : 0
pc3                  : [00000000000000000018 ms]
pc6                  : [00000000000000004294 ms]
pc7                  : [00000000000140733193 ms]
cc3                  : [00000000000000000000 ms]
cc6                  : [00000000000000000006 ms]

xm info
-------
host                   : data
release                : 2.6.32-5-xen-amd64
version                : #1 SMP Thu May 19 01:16:47 UTC 2011
machine                : x86_64
nr_cpus                : 3
nr_nodes               : 1
cores_per_socket       : 3
threads_per_core       : 1
cpu_mhz                : 2210
hw_caps                : 
178bf3ff:efd3fbff:00000000:00001310:00802001:00000000:000037ff:00000000
virt_caps              : hvm
total_memory           : 4094
free_memory            : 373
free_cpus              : 0
xen_major              : 4
xen_minor              : 1
xen_extra              : .0
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : unavailable
xen_commandline        : dom0_mem=256M dom0_vcpus_pin cpuidle 
cpufreq=xen
cc_compiler            : gcc version 4.4.5 (Debian 4.4.5-8)
cc_compile_by          : root
cc_compile_domain      :
cc_compile_date        : Fri Jun  3 17:03:43 CEST 2011
xend_config_format     : 4




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