diff options
| author |   Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-03-13 20:06:57 -0400 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-03-20 15:31:38 -0400 |
| commit | 48cdd8287f47a3cdad5b9273a5ef81bf605f7826 (patch) | |
| tree | 54fe14de42d138d232af36d4374d49fa4ef8dd10 /drivers/xen/Kconfig | |
| parent | provide disable_cpufreq() function to disable the API. (diff) | |
| download | linux-dev-48cdd8287f47a3cdad5b9273a5ef81bf605f7826.tar.xz linux-dev-48cdd8287f47a3cdad5b9273a5ef81bf605f7826.zip | |
xen/cpufreq: Disable the cpu frequency scaling drivers from loading.
By using the functionality provided by "[CPUFREQ]: provide
disable_cpuidle() function to disable the API."
Under the Xen hypervisor we do not want the initial domain to exercise
the cpufreq scaling drivers. This is b/c the Xen hypervisor is
in charge of doing this as well and we can end up with both the
Linux kernel and the hypervisor trying to change the P-states
leading to weird performance issues.
Acked-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
[v2: Fix compile error spotted by Benjamin Schweikert <b.schweikert@googlemail.com>]
Diffstat (limited to 'drivers/xen/Kconfig')
0 files changed, 0 insertions, 0 deletions