>>> On 23.02.16 at 15:00, <boris.ostrov...@oracle.com> wrote: > On 02/22/2016 09:04 PM, Haozhong Zhang wrote: > >> >> + if ( cpu_has_tsc_ratio ) >> + svm_function_table.tsc_scaling.ratio_frac_bits = 32; >> + > > >> >> +#define hvm_tsc_scaling_supported \ >> + (!!hvm_funcs.tsc_scaling.ratio_frac_bits) >> + > > What is the difference (in usage) between cpu_has_tsc_ratio and > hvm_tsc_scaling_supported? Isn't the first imply the second (and if yes > then what's the reason for having the latter)?
Iiuc cpu_has_tsc_ratio is AMD/SVM specific, while hvm_tsc_scaling_supported is meant to be vendor independent. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
