tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: d514392f17fd4d386cfadde7f849d97db4ca1fb0 commit: 651daa44b11c0ea916dee075c8acad002d1b50a2 [5972/6912] kvm: x86/pmu: Introduce masked events to the pmu event filter reproduce: # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=651daa44b11c0ea916dee075c8acad002d1b50a2 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 651daa44b11c0ea916dee075c8acad002d1b50a2 make menuconfig # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS make htmldocs If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> Documentation/virt/kvm/api.rst:5070: WARNING: Unexpected indentation. vim +5070 Documentation/virt/kvm/api.rst 5057 5058 Bits Description 5059 ---- ----------- 5060 7:0 event select (low bits) 5061 15:8 umask match 5062 31:16 unused 5063 35:32 event select (high bits) 5064 36:54 unused 5065 55 exclude bit 5066 63:56 umask mask 5067 5068 When the guest attempts to program the PMU, these steps are followed in 5069 determining if the guest should have access: > 5070 1. Match the event select from the guest against the filter events. 5071 2. If a match is found, match the guest's unit mask to the mask and match 5072 values of the included filter events. 5073 I.e. (unit mask & mask) == match && !exclude. 5074 3. If a match is found, match the guest's unit mask to the mask and match 5075 values of the excluded filter events. 5076 I.e. (unit mask & mask) == match && exclude. 5077 4. 5078 a. If an included match is found and an excluded match is not found, filter 5079 the event. 5080 b. For everything else, do not filter the event. 5081 5. 5082 a. If the event is filtered and it's an allow list, allow the guest to 5083 program the event. 5084 b. If the event is filtered and it's a deny list, do not allow the guest to 5085 program the event. 5086 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
