similar to: xen kernel and cpufreq support

Hello, I want to use DVFS in xen. I use Fedora 8. The server supports DVFS when it boots from Fedora 8 without xen. Then, I installed Xen 3.4 from source and boots successfully. But the cpufreq directory is gone in the system. I cannnot use DVFS. If I run xenpm get-cpufreq-xxx, it always reports "failed to get xxx". I have googled a lot, but still cannot find the solution. The CPU is

Modify the cpufreq ondemand governor so that it can get idle and total nsecs from the Xen hypervisor.  Xen uses nsecs to measure idle time, while Linux uses ticks. Other than accounting for that difference, use the same algorithm to calculate idle time as Linux does. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> diff -r 26962454b508 drivers/cpufreq/cpufreq_ondemand.c ---

I just installed xen-linux-system-2.6.26-1-xen-amd64 2.6.26-7 on a freshly installed Debian Lenny AMD64 system, and when I create a Debian Lenny DomU with xen-tools I cannot attach to a console nor log in with SSH. When running # xm create -c test.cfg the system starts booting, but it seems to "freeze" after the kernel has booted. Googling a bit, shows that I seem to have the problem

Hi. I am unable to load kernel modu powernow-k8 under Debian Etch Xen kernel. message in logs: Nov 19 00:34:09 alsdom02 kernel: processor: Unknown symbol pm_idle Nov 19 00:34:09 alsdom02 kernel: powernow_k8: Unknown symbol acpi_processor_notify_smm Nov 19 00:34:09 alsdom02 kernel: powernow_k8: Unknown symbol acpi_processor_unregister_performance Nov 19 00:34:09 alsdom02 kernel: powernow_k8:

Modify the cpufreq ondemand governor so that it can get idle and total ticks from the Xen hypervisor. Linux and Xen have different ideas of what an idle tick is, so the Xen values for both have to be returned in the same platform hypercall. Otherwise, use basically the same scheme as native Linux. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> iff -r 9bf1ddd0f6bf

.. snip.. >> Both of them (acpi-cpufreq.c and powernow-k8.c) have a symbol >> dependency on drivers/acpi/processor.c > > But them being ''m'' or ''y'' shouldn''t matter in the end. I thought you were saying it matters - as it should be done around the same time as cpufreq drivers were loaded? .. snip.. >> For a), this would mean some

I''m using the cpufreq=dom0-kernel hypervisor kernel parameter to enable frequency scaling on the host machines for quite some time now. Since then I started to get the "Time went backwards" message on AMD machines (not on Intel machines). It''s not a big problem, so I only research it once in a while when I stumble upon it from yet another direction. There''s

Enable cpufreq support in Xen for AMD Operton processors by: 1) Allowing the PowerNow! driver in dom0 to write to the PowerNow! MSRs. 2) Adding the cpufreq notifier chain to time-xen.c in dom0. On a frequency change, a platform hypercall is performed to scale the frequency multiplier in the hypervisor. 3) Adding a platform hypercall to the hypervisor the scale the frequency multiplier and reset

Set userspace governor as default, which stays same effect as when cpufreq in xen is not enabled. As a result, enable cpufreq in xen by default to avoid reboot to activate cpufreq. Now it''s always on but w/o performance impact if user doesn''t tempt to change governor. We also add some warning info for debug. Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com>

BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px; } Dear All, I was trying to set up a virtual network with fc7 Dom0 and ubuntu 8 (Hardy) & Fedora 9 (etc) as DomU images on AMD Opetron 152 processor based machine. I was able to successfuly establish a virtual network using bridge connection Xen Network configuration. After that I tried to install cpufreq-utils on Dom0 which

Hello ! Does anybody know how to build and use cpufreq support that should be in 3.2 since -unstable time ? Bye -- __________________________________________________ Ralf Schenk fon (02 41) 9 91 21-0 fax (02 41) 9 91 21-59 rs@databay.de Databay AG Hüttenstraße 7 D-52068 Aachen www.databay.de Vorstand: Jens Conze, Ralf Schenk, Aresch Yavari Aufsichtsratvorsitzender: Ansgar Vögeli

Hello ! Does anybody know how to build and use cpufreq support that should be in 3.2 since -unstable time ? Bye -- __________________________________________________ Ralf Schenk fon (02 41) 9 91 21-0 fax (02 41) 9 91 21-59 rs@databay.de Databay AG Hüttenstraße 7 D-52068 Aachen www.databay.de Vorstand: Jens Conze, Ralf Schenk, Aresch Yavari Aufsichtsratvorsitzender: Ansgar Vögeli

Enable THERM_CONTROL MSR write for dom0 even cpufreq=xen Signed-off-by: Wei Gang <gang.wei@intel.com> diff -r bd683e0397b4 xen/arch/x86/traps.c --- a/xen/arch/x86/traps.c Tue Feb 17 22:29:38 2009 +0800 +++ b/xen/arch/x86/traps.c Wed Feb 25 11:23:01 2009 +0800 @@ -2187,10 +2187,17 @@ static int emulate_privileged_op(struct case MSR_IA32_MPERF: case MSR_IA32_APERF:

Currently xen-unstable.hg is broken on ia64 and it should be fixed by Yu''s patch. However he is off this week, so I''m sending the workaround patch. [IA64] Compilation fix to cpufreq stuff. This patch fixes the following compilation error by defining stubs. This patch is just band aid patch until those functions are implemented later. > .../xen/drivers/built_in.o: In

Dear all, The cpufreq modules have been distributed in Centos. But recently, I met a problem when I tried to test the power-related applications. The module can not be modprobed in kernel notwithstanding releated with Centos distribution. The messgae thrown out is: ------------- dump of screen ------------ # modprobe p4-clockmod.ko FATAL: Module p4_clockmod.ko not found

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

struct cpufreq_policy, including a cpumask_t member, gets copied in cpufreq_limit_change(), cpufreq_add_cpu(), set_cpufreq_gov(), and set_cpufreq_para(). Make the member a cpumask_var_t, thus reducing the amount of data needing copying (particularly with large NR_CPUS). Signed-off-by: Jan Beulich <jbeulich@suse.com> --- 2011-09-20.orig/xen/arch/x86/acpi/cpufreq/cpufreq.c 2011-10-12

Package: xen-hypervisor-4.0-amd64 Version: 4.0.1-1 Severity: normal Hello, I've this message in dmesg that I can't understand: [ 4.032472] ------------[ cut here ]------------ [ 4.032521] WARNING: at /build/buildd-linux-2.6_2.6.32-26-amd64-KkHF2p/linux-2.6-2.6.32/debian/build/source_amd64_xen/mm/page_alloc.c:1833 __alloc_pages_nodemask+0x177/0x5f5() [ 4.032590] Hardware name:

Hi, I am trying to use the cpufreq driver and was unable to find the same on my xen kernel. I am currently running the folloing kernel: # uname -a Linux mbr-Dom0-3 2.6.18.8-xen #1 SMP Wed Jan 28 10:27:04 IST 2009 x86_64 x86_64 x86_64 GNU/Linux I read in certain places that some versions of Xen donot support cpufreq. But the information was not too clear. Could someone kindly tell me if cpufreq

This fixes an actual bug (failure to exit from a function after an allocation failure), an inconsistency (not removing the cpufreq_dom list member upon failure), and a latent bug (not clearing the current governor upon governor initialization failure when there was no old one; latent because the only current code path leading to this situation frees the policy upon failure and hence the governor