On Wed, Oct 30, 2019 at 04:07:03AM +0000, Kang, Luwei wrote: > > > Expose PEBS feature to guest by IA32_MISC_ENABLE[bit12]. > > > IA32_MISC_ENABLE[bit12] is Processor Event Based Sampling (PEBS) > > > Unavailable (RO) flag: > > > 1 = PEBS is not supported; 0 = PEBS is supported. > > > > Why does it make sense to expose this on SVM? > > Thanks for the review. This patch won't expose the pebs feature to SVM and return not supported. AFAICT it exposes/emulates an Intel MSR on AMD, which is just weird.
