Hi Peter, Please help review these minor perf/x86 changes in this patch set, and we need some of them to support Guest Architectural LBR in KVM.
If you are interested in the KVM emulation, please check https://lore.kernel.org/kvm/20210314155225.206661-1-like...@linux.intel.com/ Please check more details in each commit and feel free to comment. Like Xu (5): perf/x86/intel: Fix the comment about guest LBR support on KVM perf/x86/lbr: Simplify the exposure check for the LBR_INFO registers perf/x86/lbr: Move cpuc->lbr_xsave allocation out of sleeping region perf/x86/lbr: Skip checking for the existence of LBR_TOS for Arch LBR perf/x86: Move ARCH_LBR_CTL_MASK definition to include/asm/msr-index.h arch/x86/events/core.c | 8 +++++--- arch/x86/events/intel/bts.c | 2 +- arch/x86/events/intel/core.c | 6 +++--- arch/x86/events/intel/lbr.c | 28 +++++++++++++++++----------- arch/x86/events/perf_event.h | 8 +++++++- arch/x86/include/asm/msr-index.h | 1 + 6 files changed, 34 insertions(+), 19 deletions(-) -- 2.29.2
