Hi Len,
On 15 August 2014 18:11, Len Brown lenb@kernel.org wrote:
The Linux team at Intel did not implement ACPI CPPC support because we see no benefit to it over the native hardware interface on x86.
Thanks for sharing Intels observations. I had looked at the SDM [1] and found all the CPPC MSRs. I suppose X86 will not use a majority of it.
Cheers, Ashwin
[1] - HWP section 14.4 http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32...