Re: [PATCH] perf/x86/lbr: Simplify the exposure check for the LBR_INFO registers

Hi Peter, Would you help pick up this patch so that we can enable guest Arch LBR? --- thx,likexu On 2021/2/3 15:03, Like Xu wrote: If the platform supports LBR_INFO register, the x86_pmu.lbr_info will be assigned in intel_pmu_?_lbr_init_?() and it's safe to expose LBR_INFO in the

[PATCH] perf/x86/lbr: Simplify the exposure check for the LBR_INFO registers

If the platform supports LBR_INFO register, the x86_pmu.lbr_info will be assigned in intel_pmu_?_lbr_init_?() and it's safe to expose LBR_INFO in the x86_perf_get_lbr() directly, instead of relying on lbr_format check. Also Architectural LBR has IA32_LBR_x_INFO instead of LBR_FORMAT_INFO_x to