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 #ifdef CONFIG_HAVE_MARCH_Z17_FEATURES 58 84, /* miscellaneous-instruction-extension 4 */ 59 #endif 60 -1 /* END */ 61 } 62 }, 63 { 64 /* 65 * FACILITIES_KVM contains the list of facilities that are part 66 * of the default facility mask and list that are passed to the 67 * initial CPU model. If no CPU model is used, this, together 68 * with the non-hypervisor managed bits, is the maximum list of 69 * guest facilities supported by KVM. 70 */ 71 .name = "FACILITIES_KVM", 72 .bits = (int[]){ 73 0, /* N3 instructions */ 74 1, /* z/Arch mode installed */ 75 2, /* z/Arch mode active */ 76 3, /* DAT-enhancement */ 77 4, /* idte segment table */ 78 5, /* idte region table */ 79 6, /* ASN-and-LX reuse */ 80 7, /* stfle */ 81 8, /* enhanced-DAT 1 */ 82 9, /* sense-running-status */ 83 10, /* conditional sske */ 84 13, /* ipte-range */ 85 14, /* nonquiescing key-setting */ 86 73, /* transactional execution */ 87 75, /* access-exception-fetch/store indication */ 88 76, /* msa extension 3 */ 89 77, /* msa extension 4 */ 90 78, /* enhanced-DAT 2 */ 91 130, /* instruction-execution-protection */ 92 131, /* enhanced-SOP 2 and side-effect */ 93 139, /* multiple epoch facility */ 94 146, /* msa extension 8 */ 95 150, /* enhanced sort */ 96 151, /* deflate conversion */ 97 155, /* msa extension 9 */ 98 -1 /* END */ 99 } 100 }, 101 { 102 /* 103 * FACILITIES_KVM_CPUMODEL contains the list of facilities 104 * that can be enabled by CPU model code if the host supports 105 * it. These facilities are not passed to the guest without 106 * CPU model support. 107 */ 108 109 .name = "FACILITIES_KVM_CPUMODEL", 110 .bits = (int[]){ 111 12, /* AP Query Configuration Information */ 112 15, /* AP Facilities Test */ 113 156, /* etoken facility */ 114 165, /* nnpa facility */ 115 170, /* ineffective-nonconstrained-transaction facility */ 116 193, /* bear enhancement facility */ 117 194, /* rdp enhancement facility */ 118 196, /* processor activity instrumentation facility */ 119 197, /* processor activity instrumentation extension 1 */ 120 201, /* concurrent-functions facility */ 121 -1 /* END */ 122 } 123 }, 124 }; 125 126 static void print_facility_list(struct facility_def *def) 127 { 128 unsigned int high, bit, dword, i; 129 unsigned long long *array; 130 131 array = calloc(1, 8); 132 if (!array) 133 exit(EXIT_FAILURE); 134 high = 0; 135 for (i = 0; def->bits[i] != -1; i++) { 136 bit = 63 - (def->bits[i] & 63); 137 dword = def->bits[i] / 64; 138 if (dword > high) { 139 array = realloc(array, (dword + 1) * 8); 140 if (!array) 141 exit(EXIT_FAILURE); 142 memset(array + high + 1, 0, (dword - high) * 8); 143 high = dword; 144 } 145 array[dword] |= 1ULL << bit; 146 } 147 printf("#define %s ", def->name); 148 for (i = 0; i <= high; i++) 149 printf("_AC(0x%016llx,UL)%c", array[i], i < high ? ',' : '\n'); 150 free(array); 151 } 152 153 static void print_facility_lists(void) 154 { 155 unsigned int i; 156 157 for (i = 0; i < sizeof(facility_defs) / sizeof(facility_defs[0]); i++) 158 print_facility_list(&facility_defs[i]); 159 } 160 161 int main(int argc, char **argv) 162 { 163 printf("#ifndef __ASM_S390_FACILITY_DEFS__\n"); 164 printf("#define __ASM_S390_FACILITY_DEFS__\n"); 165 printf("/*\n"); 166 printf(" * DO NOT MODIFY.\n"); 167 printf(" *\n"); 168 printf(" * This file was generated by %s\n", __FILE__); 169 printf(" */\n\n"); 170 printf("#include <linux/const.h>\n\n"); 171 print_facility_lists(); 172 printf("\n#endif\n"); 173 return 0; 174 } 175