Hi Sukadev, I love your patch! Yet something to improve: [auto build test ERROR on powerpc/next] [also build test ERROR on v5.5-rc3 next-20191220] [cannot apply to kvm-ppc/kvm-ppc-next] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Sukadev-Bhattiprolu/powerpc-pseries-svm-Use-FW_FEATURE-to-detect-SVM/20191226-045626 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-rhel-kconfig (attached as .config) compiler: powerpc64le-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): arch/powerpc/kernel/process.c: In function 'save_sprs': >> arch/powerpc/kernel/process.c:1065:8: error: implicit declaration of function 'is_secure_guest'; did you mean 'issecure_mask'? [-Werror=implicit-function-declaration] if (!is_secure_guest()) { ^~~~~~~~~~~~~~~ issecure_mask cc1: some warnings being treated as errors -- arch/powerpc/kvm/book3s_hv.c: In function 'kvmhv_p9_guest_entry': >> arch/powerpc/kvm/book3s_hv.c:3554:7: error: implicit declaration of function 'is_secure_guest'; did you mean 'is_software_event'? [-Werror=implicit-function-declaration] if (!is_secure_guest()) { ^~~~~~~~~~~~~~~ is_software_event cc1: some warnings being treated as errors -- arch/powerpc/perf/core-book3s.c: In function 'perf_event_print_debug': >> arch/powerpc/perf/core-book3s.c:814:6: error: implicit declaration of function 'is_secure_guest' [-Werror=implicit-function-declaration] if (is_secure_guest()) { ^~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +1065 arch/powerpc/kernel/process.c 1053 1054 static inline void save_sprs(struct thread_struct *t) 1055 { 1056 #ifdef CONFIG_ALTIVEC 1057 if (cpu_has_feature(CPU_FTR_ALTIVEC)) 1058 t->vrsave = mfspr(SPRN_VRSAVE); 1059 #endif 1060 #ifdef CONFIG_PPC_BOOK3S_64 1061 if (cpu_has_feature(CPU_FTR_DSCR)) 1062 t->dscr = mfspr(SPRN_DSCR); 1063 1064 if (cpu_has_feature(CPU_FTR_ARCH_207S)) { > 1065 if (!is_secure_guest()) { 1066 t->bescr = mfspr(SPRN_BESCR); 1067 t->ebbhr = mfspr(SPRN_EBBHR); 1068 t->ebbrr = mfspr(SPRN_EBBRR); 1069 } 1070 1071 t->fscr = mfspr(SPRN_FSCR); 1072 1073 /* 1074 * Note that the TAR is not available for use in the kernel. 1075 * (To provide this, the TAR should be backed up/restored on 1076 * exception entry/exit instead, and be in pt_regs. FIXME, 1077 * this should be in pt_regs anyway (for debug).) 1078 */ 1079 t->tar = mfspr(SPRN_TAR); 1080 } 1081 #endif 1082 1083 thread_pkey_regs_save(t); 1084 } 1085 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
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