similar to: Writing MSRs from Domain0

Could anyone summarize what the support status of cpu frequency changes is at present. I don''t seem to recall generic changes to the hpyervisor in that respect, but the linux tree has fairly extensive changes to the powernow-k8 driver (which would make sense to me only if all other cpufreq drivers are fully supported now, too). Thanks, Jan

These two patches provide the neccessary infrastructure changes for the processor-passthru driver [www.spinics.net/lists/linux-acpi/msg34655.html] to properly function. The first one is quite easy - we just modprobe the processor-passthru driver. The second allows it to work under AMD machines by exposing the PM RDMSR to dom0. It has been tested with 2.6.32 kernel as well to make sure it does

Sorry to have so many questions but I seem to have quite a few mini problems with my first Xen setup. My xen server works fine with Powernow on the standard Kernel but with the Xen kernel it fails. Does anyone know why? Details below. With Standard Kernel powernow-k8: Found 2 Quad-Core AMD Opteron(tm) Processor 8350 processors (8 cpu cores) (version 2.20.00) powernow-k8: 0 : fid 0x0

Hi I have a compaq R4000 with the 2.4GIG AMD 64 bit. 4000+ rated. proc cpuinfo reports cpu Mhz as 997.481 Do I have to run the 64 bit version to have things run correctly? I just have the normal 4.2 loaded at this time. The laptop seems slow for 4000+ as reflected by the cpu Mhz also. Any thoughts on running the 32 bit version of 4.2 vs the 64 bit version of 4.2? Jerry

I had my eye on the Tyan dual-Opteron mobos for awhile. I tried to find a posting *anywhere* sharing experiences with these boards under Linux. No such luck. So placing myself under the heading "Where Angles Fear to Tread," I went ahead and built a system anyway. Here's what I've learned. The specs: Tyan Thunder K8SE S2892, BIOS 1.01 2x Opteron 270, 2Ghz Dual-Core, retail

Hello, Using kernel: 2.6.18-92.1.13.el5.centos.plus the cpu throttling works as desired (see 2 traces below) ------------- trace snips -------------- dmesg | grep -i pow ACPI: SSDT (v001 PTLTD POWERNOW 0x00000001 LTP 0x00000001) @ 0x3fff9b40 powernow-k8: Found 1 AMD Athlon(tm) 64 X2 Dual Core Processor 4600+ processors ( 2 cpu cores) (version 2.20.00) powernow-k8: 0 :

I am running 2.6.18-1.2693.fc6xen and I am receiving this message powernow-k8: Processor cpuid 681 not supported anyone know if xen works on processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 8 model name : AMD Athlon(tm) Prosussor stepping : 1 cpu MHz : 1994.985 cache size : 256 KB fdiv_bug : no hlt_bug : no

I am running 2.6.18-1.2693.fc6xen and I am receiving this message powernow-k8: Processor cpuid 681 not supported anyone know if xen works on processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 8 model name : AMD Athlon(tm) Prosussor stepping : 1 cpu MHz : 1994.985 cache size : 256 KB fdiv_bug : no hlt_bug : no

Hi! I would like to know the status of the frequency scaling in XEN. I found a web site saying that XEN doesn’t work with frequency scaling, at the other hand I found some fixes for powernow-k8 to get rid of some messages. I have an AMD64. powerno-k8 works find with non-XEN kernels, but with XEN-kernels I get the error: powernow-k8: Found 1 AMD Athlon(tm) 64 Processor 3400+ processors

Hi, I recently subscribed to xen-users asking about a powernow-k8 problem, but in the meantime I am not sure if the users-list was the right place for it. So I decided to repeat my question here ;-) My current config is attached. --- snip --- Hi, I recently installed Xen on my AMD64 for my first time and so far, everything seems to work pretty fine. :-) I tried to enable cpu frequency

Currently cpufreq and xenpm are out of sync. Fix cpufreq reporting of if turbo mode is enabled or not. Fix xenpm to not decode for tristate, but a boolean. Signed-off-by: Jacob Shin <jacob.shin@amd.com> --- tools/misc/xenpm.c | 14 +++----------- xen/drivers/cpufreq/utility.c | 2 +- 2 files changed, 4 insertions(+), 12 deletions(-) diff --git a/tools/misc/xenpm.c

Package: xen-hypervisor-4.1-amd64 Version: 4.1.3-3 Severity: normal Forwarded: http://bugzilla.xen.org/bugzilla/show_bug.cgi?id=1789 Dear Debian Xen Team, after an upgrade from Squeeze to Wheezy I see about ten of these per second filling my system log (about 8 MB/h): Nov 23 00:15:37 acromantula kernel: [ 462.544193] powernow-k8: fid trans failed, fid 0x2, curr 0x0 Nov 23 00:15:37 acromantula

Hi all! After booting the server I have this message: irq 50: nobody cared (try booting with the "irqpoll" option) Call Trace: <IRQ> [<ffffffff800c17e6>] __report_bad_irq+0x30/0x7d [<ffffffff800c1a19>] note_interrupt+0x1e6/0x227 [<ffffffff800c0f15>] __do_IRQ+0xbd/0x103 [<ffffffff8006e249>] do_IRQ+0x13f/0x14d [<ffffffff8006ca05>]

Hey all, Since moving a 4.3 x86-64 install from a single athlon64 to a new dual core AMD cpu it would appear that cool'n quiet is having trouble as is shown in the system logs; powernow-k8: ignoring illegal change in lo freq table-2 to 0x2 powernow-k8: transition frequency failed Any ideas ? Cheers, Brian.

Hi, I''ve recently installed xen-3.2.1 on my AMD Sempron(tm) machine. It runs gentoo 2.6.21 as dom0 and cpu frequency scaling works in dom0. But inside a domU, cpu frequency scaling is not working. By checking the boot log in domU I found that domU is unable to load the powernow driver: "powernow-k8: BIOS error - no PSB or ACPI _PSS objects" I wonder if it is possible to have

This changeset reverts two previous corrections, for reasons that escape me. First, the domain map is again being confined to NR_CPUS, which I had submitted a patch to fix recently (yes, I realize the code has a TODO in there, but those really get forgotten about far too often). Second, the platform hypercall was reverted back to require all information to be passed to Xen in one chunk, whereas

Hi, i read the xenpm wiki page, but i cannot use the "p-states". xenpm shows: xenpm cpu id : 0 total C-states : 2 idle time(ms) : 1776034 C0 : transition [00000000000000000000] residency [00000000000000000000 ms] C1 : transition [00000000000000260278] residency

hello, yet another powerd SOS : on an ASUS M3A78-EM MB with Phenom 9750 and 8 gig memory, starting powerd freezes the box after slowing down a bit cpu frequency. [IMHO] usefull bit of info : FreeBSD m34.scito.local 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #0: Thu Dec 11 14:24:39 CET 2008 root@m34.scito.local:/usr/obj/raid1/bsd/src7/sys/M3A78-EM amd64 CPU: AMD Phenom(tm) 9750 Quad-Core

I have centos 5.4 on an HP laptop, as below the /proc/cpuinfo shows Dual core, however, there is only 1 processor listed in /proc/cpuinfo. Is the OS only using a single core? jerry ------ processor : 0 vendor_id : AuthenticAMD cpu family : 17 model : 3 model name : AMD Turion(tm) X2 Ultra Dual-Core Mobile ZM-86 stepping : 1 cpu MHz : 2400.000

Hi; While using xen-3.0.2 with 2.6.16.28 kernel CPU (Intel(R) Pentium(R) M processor 1.73GHz) temprature is inreasing up to 104 C (/proc/acpi/thermal_zone/THRM/trip_points reports 105 C is critical for CPU) while idle or no domU working with very low system load, and if i start to use domU, sometimes system freezes or reboots for heat. But the same kernel just without Xen works normally and