base_topa 906 arch/x86/events/intel/pt.c u64 offset, base_topa; base_topa 909 arch/x86/events/intel/pt.c rdmsrl(MSR_IA32_RTIT_OUTPUT_BASE, base_topa); base_topa 910 arch/x86/events/intel/pt.c tp = phys_to_virt(base_topa);