1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Simple program to generate defines out of facility lists that use the bit 4 * numbering scheme from the Princples of Operations: most significant bit 5 * has bit number 0. 6 * 7 * Copyright IBM Corp. 2015, 2018 8 * 9 */ 10 11 #include <strings.h> 12 #include <string.h> 13 #include <stdlib.h> 14 #include <stdio.h> 15 16 struct facility_def { 17 char *name; 18 int *bits; 19 }; 20 21 static struct facility_def facility_defs[] = { 22 { 23 /* 24 * FACILITIES_ALS contains the list of facilities that are 25 * required to run a kernel that is compiled e.g. with 26 * -march=<machine>. 27 */ 28 .name = "FACILITIES_ALS", 29 .bits = (int[]){ 30 0, /* N3 instructions */ 31 1, /* z/Arch mode installed */ 32 18, /* long displacement facility */ 33 21, /* extended-immediate facility */ 34 25, /* store clock fast */ 35 27, /* mvcos */ 36 32, /* compare and swap and store */ 37 33, /* compare and swap and store 2 */ 38 34, /* general instructions extension */ 39 35, /* execute extensions */ 40 #ifdef CONFIG_HAVE_MARCH_Z196_FEATURES 41 45, /* fast-BCR, etc. */ 42 #endif 43 #ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES 44 49, /* misc-instruction-extensions */ 45 52, /* interlocked facility 2 */ 46 #endif 47 #ifdef CONFIG_HAVE_MARCH_Z13_FEATURES 48 53, /* load-and-zero-rightmost-byte, etc. */ 49 129, /* vector */ 50 #endif 51 #ifdef CONFIG_HAVE_MARCH_Z14_FEATURES 52 58, /* miscellaneous-instruction-extension 2 */ 53 #endif 54 #ifdef CONFIG_HAVE_MARCH_Z15_FEATURES 55 61, /* miscellaneous-instruction-extension 3 */ 56 #endif 57 -1 /* END */ 58 } 59 }, 60 { 61 /* 62 * FACILITIES_KVM contains the list of facilities that are part 63 * of the default facility mask and list that are passed to the 64 * initial CPU model. If no CPU model is used, this, together 65 * with the non-hypervisor managed bits, is the maximum list of 66 * guest facilities supported by KVM. 67 */ 68 .name = "FACILITIES_KVM", 69 .bits = (int[]){ 70 0, /* N3 instructions */ 71 1, /* z/Arch mode installed */ 72 2, /* z/Arch mode active */ 73 3, /* DAT-enhancement */ 74 4, /* idte segment table */ 75 5, /* idte region table */ 76 6, /* ASN-and-LX reuse */ 77 7, /* stfle */ 78 8, /* enhanced-DAT 1 */ 79 9, /* sense-running-status */ 80 10, /* conditional sske */ 81 13, /* ipte-range */ 82 14, /* nonquiescing key-setting */ 83 73, /* transactional execution */ 84 75, /* access-exception-fetch/store indication */ 85 76, /* msa extension 3 */ 86 77, /* msa extension 4 */ 87 78, /* enhanced-DAT 2 */ 88 130, /* instruction-execution-protection */ 89 131, /* enhanced-SOP 2 and side-effect */ 90 139, /* multiple epoch facility */ 91 146, /* msa extension 8 */ 92 150, /* enhanced sort */ 93 151, /* deflate conversion */ 94 155, /* msa extension 9 */ 95 -1 /* END */ 96 } 97 }, 98 { 99 /* 100 * FACILITIES_KVM_CPUMODEL contains the list of facilities 101 * that can be enabled by CPU model code if the host supports 102 * it. These facilities are not passed to the guest without 103 * CPU model support. 104 */ 105 106 .name = "FACILITIES_KVM_CPUMODEL", 107 .bits = (int[]){ 108 12, /* AP Query Configuration Information */ 109 15, /* AP Facilities Test */ 110 156, /* etoken facility */ 111 165, /* nnpa facility */ 112 193, /* bear enhancement facility */ 113 194, /* rdp enhancement facility */ 114 196, /* processor activity instrumentation facility */ 115 197, /* processor activity instrumentation extension 1 */ 116 -1 /* END */ 117 } 118 }, 119 }; 120 121 static void print_facility_list(struct facility_def *def) 122 { 123 unsigned int high, bit, dword, i; 124 unsigned long long *array; 125 126 array = calloc(1, 8); 127 if (!array) 128 exit(EXIT_FAILURE); 129 high = 0; 130 for (i = 0; def->bits[i] != -1; i++) { 131 bit = 63 - (def->bits[i] & 63); 132 dword = def->bits[i] / 64; 133 if (dword > high) { 134 array = realloc(array, (dword + 1) * 8); 135 if (!array) 136 exit(EXIT_FAILURE); 137 memset(array + high + 1, 0, (dword - high) * 8); 138 high = dword; 139 } 140 array[dword] |= 1ULL << bit; 141 } 142 printf("#define %s ", def->name); 143 for (i = 0; i <= high; i++) 144 printf("_AC(0x%016llx,UL)%c", array[i], i < high ? ',' : '\n'); 145 free(array); 146 } 147 148 static void print_facility_lists(void) 149 { 150 unsigned int i; 151 152 for (i = 0; i < sizeof(facility_defs) / sizeof(facility_defs[0]); i++) 153 print_facility_list(&facility_defs[i]); 154 } 155 156 int main(int argc, char **argv) 157 { 158 printf("#ifndef __ASM_S390_FACILITY_DEFS__\n"); 159 printf("#define __ASM_S390_FACILITY_DEFS__\n"); 160 printf("/*\n"); 161 printf(" * DO NOT MODIFY.\n"); 162 printf(" *\n"); 163 printf(" * This file was generated by %s\n", __FILE__); 164 printf(" */\n\n"); 165 printf("#include <linux/const.h>\n\n"); 166 print_facility_lists(); 167 printf("\n#endif\n"); 168 return 0; 169 } 170